Midea Precision Air Conditioner Technical Manual （Down delivery

Transcription

Midea Precision AC Technical Manual-Down Delivery Series
MCAC-RTSM-2013-04
Midea Precision Air Conditioner
Technical Manual
（Down delivery series）
Midea reserves the right to discontinue, or change specification or designs at any time without
notices and without incurring obligations.
0
MCAC-PDSM-2013-04
Content
1. GENERAL INFORMATION................................................................... 3 1.1 MEASUREMENTS ............................................................................................................ 3 1.2 EXTERNAL APPEARANCE ................................................................................................. 4 1.3 NOMENCLATURE............................................................................................................. 5 2. SPECIFICATION & PERFORMANCE .................................................. 6 2.1FEATURES ...................................................................................................................... 6 2.2 REFRIGERANT CIRCUIT.................................................................................................... 8 2.3 SPECIFICATIONS ........................................................................................................... 10 2.4 DIMENSION (UNIT: MM).................................................................................................. 32 2.5 SERVICE SPACE............................................................................................................ 36 2.6 WIRING DIAGRAM ......................................................................................................... 37 3. INSTALLATION .................................................................................. 40 3.1 STORAGE ENVIRONMENT ............................................................................................... 42 3.2 INDOOR INSTALLATION ................................................................................................... 42 3.3 INSTALLING OUTDOOR UNITS .......................................................................................... 45 3.4 CONNECTING REFRIGERANT PIPE ................................................................................... 46 3.5 VACUUM AND ADD REFRIGERANT .................................................................................... 49 3.6 WATER PIPE INSTALLATION ............................................................................................ 50 3.7 ELECTRIC CONNECTION ................................................................................................ 52 3.8 TRIAL RUN ................................................................................................................... 55 4. CONTROL SYSTEM ........................................................................... 61 4.1 TABLE OF MAIN CONTROL COMPONENTS AND CONTROL LOAD ............................................ 61 4.2 MAIN CONTROL FUNCTION ............................................................................................. 64 5. OPERATION ....................................................................................... 65 1
Midea Precision AC Technical Manual
MCAC-PDSM-2013-01
5.1 TEMPERATURE/HUMIDITY SET POINT SETTING FUNCTION .................................................. 65 5.2 QUERY FUNCTION FOR KEY COMPONENTS OPERATING STATUS .......................................... 65 5.3 SETTING FUNCTION OF USING PARAMETERS .................................................................... 67 5.4 MAINTENANCE MANAGEMENT ........................................................................................ 68 5.5 CLOCK MANAGEMENT ................................................................................................... 69 6. NETWORK FUNCTION INTRODUCTION ......................................... 71 6.1 GROUP CONTROL NETWORK SETTING ............................................................................. 72 6.2 THE ETHERNET COMMUNICATION CARD INTRODUCTION .................................................... 78 7. MAINTENANCE .................................................................................. 81 7.1 ELECTRICAL MAINTENANCE ........................................................................................... 81 7.2 CONTROL MAINTENANCE ............................................................................................... 81 7.3 FILTER SCREEN MAINTENANCE ....................................................................................... 82 7.4 INDOOR FAN COMPONENTS MAINTENANCE ...................................................................... 83 7.5 HUMIDIFIER MAINTENANCE ............................................................................................ 83 7.6 ELECTRICAL HEATING COMPONENTS............................................................................... 85 7.7 REFRIGERATION SYSTEM ............................................................................................... 85 7.8 COMPRESSOR MONITORING AND REPLACEMENT .............................................................. 86 7.9 OUTDOOR FAN MAINTENANCE ........................................................................................ 87 8. TROUBLE SHOOTING ....................................................................... 88 9. ACCESSORIES .................................................................................. 93 ANNEX I: ALARM TABLE ...................................................................... 94 2
MCAC-PDSM-2013-04
1. General information
1.1 Measurements
Type
20kW
25kW
30kW
35kW
40kW
45kW
50kW
60kW
70kW
80kW
90kW
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Indoor
Outdoor
Model
Dimension
(mm, W×H×D)
MAD020T1N1S1
895×1,971×870
MA0331
1,470×988×870
MAD025T1N1S1
895×1,971×870
MA0431
1,470×988×870
MAD030T1N1S1
895×1,971×870
MA0541
1,660×1,290×870
MAD035T1N1S1
1,400×1,971×870
MA0601
1,660×1,290×870
MAD040T2N1S1
1,790×1,971×870
MA0331
1,470×988×870
MAD045T1N1S1
1,790×1,971×870
MA0752
1,980×1,290×870
MAD050T2N1S1
1,790×1,971×870
MA0431
1,470×988×870
MAD060T2N1S1
1,790×1,971×870
MA0541
1,660×1,290×870
MAD070T2N1S1
2,685×1,971×870
MA0601
1,660×1,290×870
MAD080T2N1S1
2,685×1,971×870
MA0752
1,980×1,290×870
MAD090T2N1S1
2,685×1,971×870
MA0982
2,480×1,290×870
Outdoor unit
(Quantity)
1
1
1
1
2
1
2
2
2
2
2
Power Supply
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
380V~,3Ph,50Hz
3
Midea Precision AC Techniccal Manual
1.2 Extern
nal appearrance
Indoorr unit-20kW,, 25kW, 30k
kW:
kW, 50kW, 6
60kW:
kW:
4
M
MCAC-PDSM
M-2013-01
MCAC-PDSM
M-2013-04
Midea
a Precision AC Technical Maanual-Down Delivery Series
Outdoo
or unit-Sing
gle fan moto
or:
Outdoo
or unit-Dou
uble fan motors:
1.3 Nomenclature
Indoor un
nit
5
M
MCAC-PDSM
M-2013-01
Outdoo
or unit
2. Speciification
n & perfo
ormance
e
2.1Features
s







6
V shap
pe design hiigh efficient evaporatorr with hydro
ophilic aluminum fin andd inner groo
oved copper
pipe.
Change
e the valid evaporator
e
area
a
by elecctric valve to
o reduce the
e relative huumidity witho
out apparen
nt
temperrature fluctua
ation.
Reliable
e electric he
eater.
Double
e wall design
n, heat-insulated casing
g reduces the exchange
ed heat and prevent the condensate
e
from the unit body.
or.
Copela
and, special high efficien
nt compresso
Adopt a
advantage technology
t
of
o immersed
d electrode humidifier, carel
c
cleanaable steam cylinder,
c
and
d
integratted control solution
s
of humidity.
Accurate micropro
ocessor conttrol technolo
ogy and key parts: Hig
gh quality h umidity con
ntrol module
e,
temperrature & hum
midity sensor, frequencyy converter, pressure
p
sensor.
MCAC-PDSM
M-2013-04






Midea
Multiple
e protectionss: High and low pressurre protection
n, discharge temperature
re protection
n, etc.
The run
nning param
meter can be
e displayed i n the screen
n of the conttrol panel.
100 pie
eces of errorr records can be stored..
Three ttypes of passsword: userr password, maintenanc
ce password
d, factory passsword.
Rotary function, sttandby func
ction and joiin-in functio
on can ensu
ure the unitss keep operating in the
e
whole yyear.
To enh
hance remo
ote commun
nications an
nd control the precision air connditioners, the Etherne
et
commu
unication carrd (optional part) and R
RS485 card (optional pa
art) can suppport the com
mmunication
n
capabilities as the requirementts.
7
2.2 Refrig
gerant circ
cuit
Single refrigerantt circuit type:
8
M CAC-PDSM
M-2013-01
MCAC-PDSM
M-2013-04
Midea
Dual-re
efrigerant circuits
c
type
e:
ompressor.
Comprressor: R410A, scroll co
ube and alum
minum fin type heat excchanger.
Evaporrator (Heat exchanger): Copper tu
Indoorr Fan: Centriifugal fan
or Fan: Axia
al fan
Outdoo
9
MCAC-PDSM-2013-01
2.3 Specifications
Indoor model
MAD020T1N1S1
Outdoor model (×Quantity)
MA0331 (×1)
Indoor operating ambient temperature range
°C
0~40
Outdoor operating ambient temperature range
°C
-20~45, (-40~45, with low ambient temperature kit)
\
≤1000m (higher than 1000m, derating use)
Indoor Power supply
V, Ph, Hz
380V~,3Ph,50Hz
Outdoor Power supply
V, Ph, Hz
380V~,3Ph,50Hz
Whole unit Rated input
W
15,000
Whole unit Rated current
A
26.8
Total capacity
W
20,200
Sensible capacity
W
18,580
Input
W
7,800
EER
W/W
2.59
Altitude
Cooling
E-heater
Capacity
W
6,000
Humidification
Capacity
kg/h
5
Model
\
ZP83KCE-TFD-522
Type
\
Scroll
Qty.
\
1
Brand
\
Copeland
Capacity
W
20,000
Input
W
6,400
Rated current (RLA)
A
13.6
Locked rotor Amp (LRA)
A
101
Thermal protector
\
Internal
ml
1,774 (POE)
Compressor
Refrigerant oil
Indoor fan
Model (× quantity)
\
Brand
\
Huanqiu/Wolong
Input
W
2,200
r/min
1,420
\
4
Tube pitch(a)×row pitch(b)
mm
25.4×22
Fin spacing
mm
1.8
Fin type
\
Hydrophilic aluminum fin
Pipe size
mm
Ф9.52
Pipe type
\
Inner grooved copper pipe
Coil(W×H)
mm
(726×686)+(726×686)
Number of circuits
\
9+9
Type
\
Axial fan
Motor Model (× Quantity)
\
FN071-SDK (×1)
Motor Brand
\
Ziehl-Abegg
Motor Input
W
940
Speed
Number of rows
Indoor coil
Outdoor fan
10
Y(2)100L1-4-2.2KW(YRZ)
(×1)
MCAC-PDSM-2013-04
Speed
r/min
900
\
3
mm
25.4×22
Fin spacing
mm
2.2
\
No. of rows
Outdoor coil
Fin type
Ф9.52
Pipe outside dia. and type
mm
Coil (W×D)
mm
1,250×914.4
Number of circuits
\
6
3
m /h
6,225
Indoor external static pressure
Pa
20
Indoor drain pipe I.D.
mm
Ф30
Indoor noise level
dB(A)
≤66
Outdoor noise level
dB(A)
≤64
Type
\
R410A
Recharged (After installation)
g
7,500
Control
\
Thermostatic expansion valve
MPa
4.4
Max. pipe length
m
60
Refrigerant
Max. difference in level (O.U. up)
m
20
pipe
Max. difference in level (O.U.
m
5
Indoor power wire
mm2
2
2
3×10.0mm （A,B,C）+2×6.0mm （N,GND）
Outdoor power wire
mm2
4×1.0mm2
Signal wire
mm2
4×1.0mm2
\
G4
mm
895×1,971×870
kg
340
mm
1,470×988×690(No include supporting bar)
kg
105
Indoor air flow
Refrigerant
Maximum refrigeration pipe pressure
down)
Connection
wire
Filter
Indoor unit
Outdoor unit
Net dimension (W×H×D)
Net weight
Net weight
Notes:
1.
2.
3.
The nominal cooling capacity is based on the following conditions. Indoor temperature: 24°CDB, 17°CWB;
Outdoor temperature: 35°CDB, pipe length is 10 meters.
The noise is measured in the semi suppression lab.
Specifications are subject to change without prior notice for product improvement.
11
MCAC-PDSM-2013-01
Indoor model
MAD025T1N1S1
MA0431 (×1)
°C
0~40
°C
\
Indoor Power supply
V, Ph, Hz
380V~,3Ph,50Hz
V, Ph, Hz
380V~,3Ph,50Hz
W
16,500
A
30
Total capacity
W
26,000
Sensible capacity
W
23,920
Input
W
9,400
EER
W/W
2.77
Altitude
Cooling
E-heater
Capacity
W
6,000
Humidification
Capacity
kg/h
5
Model
\
ZP103KCE-TFD-522
Type
\
Scroll
Qty.
\
1
Brand
\
Copeland
Capacity
W
25,200
Input
W
7,800
Rated current (RLA)
A
18.6
A
111
Thermal protector
\
Internal
ml
3,253 (POE)
Compressor
Refrigerant oil
Indoor fan
Model (× quantity)
\
Y(2)100L2-4-3KW(YRZ)
Brand
\
Huanqiu/Wolong
Input
W
3,000
r/min
1,420
\
4
mm
25.4×22
Fin spacing
mm
1.8
Fin type
\
Pipe size
mm
Ф9.52
Pipe type
\
Coil(W×H)
mm
(726×686)+(726×686)
Number of circuits
\
9+9
Type
\
Axial fan
\
FN080-ADK (×1)
Motor Brand
\
Ziehl-Abegg
Motor Input
W
1,100
r/min
680
\
3
Speed
Number of rows
Indoor coil
Outdoor fan
Speed
Outdoor coil
12
No. of rows
(×1)
MCAC-PDSM-2013-04
mm
25.4×22
Fin spacing
mm
2.2
\
Fin type
Ф9.52
mm
Coil (W×D)
mm
1,250×914.4
Number of circuits
\
6
3
m /h
7,010
Pa
20
mm
Ф30
Indoor noise level
dB(A)
≤66
Outdoor noise level
dB(A)
≤64
Type
\
R410A
g
9,500
Control
\
MPa
4.4
Max. pipe length
m
60
Refrigerant
m
20
pipe
m
5
Indoor power wire
mm2
2
2
3×10.0mm （A,B,C）+2×6.0mm （N,GND）
Outdoor power wire
mm2
4×1.0mm2
Signal wire
mm2
4×1.0mm2
\
G4
mm
895×1,971×870
kg
360
mm
kg
105
Indoor air flow
Refrigerant
down)
Connection
wire
Filter
Indoor unit
Outdoor unit
Net weight
Net weight
Notes:
1.
2.
3.
13
MCAC-PDSM-2013-01
Indoor model
MAD030T1N1S1
MA0541 (×1)
°C
0~40
°C
\
Indoor Power supply
V, Ph, Hz
380V~,3Ph,50Hz
V, Ph, Hz
380V~,3Ph,50Hz
W
18,500
A
33
Total capacity
W
30,900
Sensible capacity
W
27,810
Input
W
11,300
EER
W/W
2.73
Altitude
Cooling
E-heater
Capacity
W
6,000
Humidification
Capacity
kg/h
5
Model
\
ZP120KCE-TFD-522
Type
\
Scroll
Qty.
\
1
Brand
\
Copeland
Capacity
W
29,200
Input
W
9,200
Rated current (RLA)
A
20
A
118
Thermal protector
\
Internal
ml
3,253 (POE)
Model (× quantity)
\
Y2FD100L2-4 (×1)
Brand
\
Huanqiu/Wolong
Input
W
3,000
r/min
1,420
\
4
mm
25.4×22
Fin spacing
mm
1.8
Fin type
\
Pipe size
mm
Ф9.52
Pipe type
\
Coil(W×H)
mm
(726×686)+(726×686)
Number of circuits
\
9+9
Type
\
FN type, AC axial fan
\
WZZ800-8 (×1)
Motor Brand
\
Ziehl-Abegg
Motor Input
W
1,100/760
r/min
680/530
\
3
Compressor
Refrigerant oil
Indoor fan
Speed
Number of rows
Indoor coil
Outdoor fan
Speed
Outdoor coil
14
No. of rows
MCAC-PDSM-2013-04
mm
25.4×22
Fin spacing
mm
2.2
\
Fin type
Ф9.52
mm
Coil (W×D)
mm
1447×1219
Number of circuits
\
12
3
m /h
8,825
Pa
20
mm
Ф30
Indoor noise level
dB(A)
67
Outdoor noise level
dB(A)
65
Type
\
R410A
g
12,000
Control
\
Thermal expansion valve
MPa
4.4
Max. pipe length
m
60
Refrigerant
m
20
pipe
m
5
Indoor power wire
mm2
2
2
3×10.0mm （A,B,C）+2×6.0mm （N,GND）
Outdoor power wire
mm2
4×1.0mm2
Signal wire
mm2
4×1.0mm2
\
G4
mm
895×1,971×870
kg
365/432
mm
1,660×1,290×690 (Without supporting bar)
kg
140/250
Indoor air flow
Refrigerant
down)
Connection
wire
Filter
Indoor unit
Outdoor unit
Net weight
Net weight
Notes:
1.
2.
3.
15
MCAC-PDSM-2013-01
Indoor model
MAD035T1N1S1
Outdoor model(×Quantity)
MA0601 (×1)
°C
0~40
°C
\
Indoor Power supply
V, Ph, Hz
380V~,3Ph,50Hz
V, Ph, Hz
380V~,3Ph,50Hz
W
25,000
A
46
Total capacity
W
34,000
Sensible capacity
W
31,280
Input
W
12,500
EER
W/W
2.72
Altitude
Cooling
E-heater
Capacity
W
6,000
Humidification
Capacity
kg/h
5
Model
\
ZP137KCE-TFD-522
Type
\
Scroll
Qty.
\
1
Brand
\
Copeland
Capacity
W
32,600
Input
W
10,200
Rated current (RLA)
A
20.7
A
118
Thermal protector
\
Internal
ml
3,253 (POE)
Model (× quantity)
\
Y(2)100L2-4-3KW(YRZ) (×1)
Brand
\
Huanqiu/Wolong
Input
W
3,000
r/min
1,420
\
4
mm
25.4×22
Fin spacing
mm
1.8
Fin type
\
Pipe size
mm
Ф9.52
Pipe type
\
Coil(W×H)
mm
(1,210×660.4)+(1,210×660.4)
Number of circuits
\
13+13
Type
\
Axial fan
\
FN080-ADK (×1)
Motor Brand
\
Ziehl-Abegg
Motor Input
W
1,100
r/min
680
Compressor
Refrigerant oil
Indoor fan
Speed
Number of rows
Indoor coil
Outdoor fan
Speed
16
MCAC-PDSM-2013-04
No. of rows
Outdoor coil
\
4
mm
25.4×22
Fin spacing
mm
2.2
\
Fin type
Ф9.52
mm
Coil (W×D)
mm
1,448×1,219.2
Number of circuits
\
12
3
m /h
10,400
Pa
20
mm
Ф30
Indoor noise level
dB(A)
≤69
Outdoor noise level
dB(A)
≤64
Type
\
R410A
g
13,500
Control
\
Thermal expansion valve
MPa
4.4
Max. pipe length
m
60
Refrigerant
m
20
pipe
m
5
Indoor power wire
mm2
2
2
3×10.0mm （A,B,C）+2×6.0mm （N,GND）
Outdoor power wire
mm2
4×1.0mm2
Signal wire
mm2
4×1.0mm2
\
G4
mm
1,400×1,971×870
kg
460
mm
1,660×1,290×690(No include supporting bar)
kg
150
Indoor air flow
Refrigerant
down)
Connection
wire
Filter
Indoor unit
Outdoor unit
Net weight
Net weight
Notes:
1.
2.
3.
17
MCAC-PDSM-2013-01
Indoor model
MAD040T2N1S1
MA0331 (×2)
°C
0~40
°C
\
Indoor Power supply
V, Ph, Hz
380V~,3Ph,50Hz
V, Ph, Hz
380V~,3Ph,50Hz
W
32,000
A
60
Total capacity
W
40,300
Sensible capacity
W
38,290
Input
W
15,400
EER
W/W
2.62
Altitude
Cooling
E-heater
Capacity
W
9,000
Humidification
Capacity
kg/h
10
Model
\
ZP83KCE-TFD-522
Type
\
Scroll
Qty.
\
2
Brand
\
Copeland
Capacity
W
20,000
Input
W
6,400
Rated current (RLA)
A
13.6
A
101
Thermal protector
\
Internal
ml
1,774 (POE)
Model (× quantity)
\
Y(2)100L1-4-2.2KW(YRZ) (×2)
Brand
\
Huanqiu/Wolong
Input
W
2,200
r/min
1,420
\
4
mm
25.4×22
Fin spacing
mm
1.8
Fin type
\
Pipe size
mm
Ф9.52
Pipe type
\
Coil(W×H)
mm
(1,590×685.8)+(1,590×685.8)
Number of circuits
\
18+18
Type
\
Axial fan
Outdoor fan
\
FN071-SDK (×1)
(Single
Motor Brand
\
Ziehl-Abegg
outdoor unit)
Motor Input
W
940
r/min
900
Compressor
Refrigerant oil
Indoor fan
Speed
Number of rows
Indoor coil
Speed
18
MCAC-PDSM-2013-04
No. of rows
Outdoor coil
(Single
outdoor unit)
\
3
mm
25.4×22
Fin spacing
mm
2.2
\
Fin type
Ф9.52
mm
Coil (W×D)
mm
1,250×914.4
Number of circuits
\
6
3
m /h
11,980
Pa
20
mm
Ф30
Indoor noise level
dB(A)
≤69
Outdoor noise level
dB(A)
≤64
Type
\
R410A
g
8,500×2
Control
\
MPa
4.4
Max. pipe length
m
60
Refrigerant
m
20
pipe
m
5
Indoor power wire
mm2
2
2
3×10.0mm （A,B,C）+2×6.0mm （N,GND）
Outdoor power wire
mm2
(4×1.0mm2)+(4×1.0mm2)
Signal wire
mm2
(4×1.0mm2)+ (4×1.0mm2)
\
G4
mm
1,790×1,971×870
kg
563
mm
kg
105
Indoor air flow
Refrigerant
down)
Connection
wire
Filter
Indoor unit
Net weight
Outdoor unit
(Single)
Net weight
Notes:
1.
2.
3.
19
MCAC-PDSM-2013-01
Indoor model
MAD045T1N1S1
MA0752 (×1)
°C
0~40
°C
\
Indoor Power supply
V, Ph, Hz
380V~,3Ph,50Hz
V, Ph, Hz
380V~,3Ph,50Hz
W
33,000
A
62
Total capacity
W
44,900
Sensible capacity
W
41,310
Input
W
16,900
EER
W/W
2.66
Altitude
Cooling
E-heater
Capacity
W
9,000
Humidification
Capacity
kg/h
10
Model
\
ZP182KCE-TFD-522
Type
\
Scroll
Qty.
\
1
Brand
\
Copeland
Capacity
W
44,000
Input
W
13,500
Rated current (RLA)
A
29.3
A
174
Thermal protector
\
Internal
ml
3,253 (POE)
Model (× quantity)
\
Y(2)100L1-4-2.2KW(YRZ) (×2)
Brand
\
Huanqiu/Wolong
Input
W
2,200
r/min
1,420
\
4
mm
25.4×22
Fin spacing
mm
1.8
Fin type
\
Pipe size
mm
Ф9.52
Pipe type
\
Coil(W×H)
mm
(1,590×685.8)+(1,590×685.8)
Number of circuits
\
18+18
Type
\
Axial fan
\
FN071-SDK (×2)
Motor Brand
\
Ziehl-Abegg
Motor Input
W
940
r/min
900
Compressor
Refrigerant oil
Indoor fan
Speed
Number of rows
Indoor coil
Outdoor fan
Speed
20
MCAC-PDSM-2013-04
No. of rows
Outdoor coil
\
3
mm
25.4×22
Fin spacing
mm
2.2
\
Fin type
Ф9.52
mm
Coil (W×D)
mm
1,750×1,219.2
Number of circuits
\
18
3
m /h
13,030
Pa
20
mm
Ф30
Indoor noise level
dB(A)
≤69
Outdoor noise level
dB(A)
≤64
Type
\
R410A
g
17,000
Control
\
MPa
4.4
Max. pipe length
m
60
Refrigerant
m
20
pipe
m
5
Indoor power wire
mm2
2
2
3×10.0mm （A,B,C）+2×6.0mm （N,GND）
Outdoor power wire
mm2
4×1.0mm2
Signal wire
mm2
4×1.0mm2
\
G4
mm
1,790×1,971×870
kg
560
mm
kg
170
Indoor air flow
Refrigerant
down)
Connection
wire
Filter
Indoor unit
Outdoor unit
Net weight
Net weight
Notes:
1.
2.
3.
21
MCAC-PDSM-2013-01
Indoor model
MAD050T2N1S1
MA0431 (×2)
°C
0~40
°C
\
Indoor Power supply
V, Ph, Hz
380V~,3Ph,50Hz
V, Ph, Hz
380V~,3Ph,50Hz
W
36,000
A
65
Total capacity
W
49,700
Sensible capacity
W
45,230
Input
W
19,100
EER
W/W
2.6
Altitude
Cooling
E-heater
Capacity
W
9,000
Humidification
Capacity
kg/h
10
Model
\
ZP103KCE-TFD-522
Type
\
Scroll
Qty.
\
2
Brand
\
Copeland
Capacity
W
25,200
Input
W
7,800
Rated current (RLA)
A
18.6
A
111
Thermal protector
\
Internal
ml
3,253 (POE)
Model (× quantity)
\
Y(2)100L2-4-3KW(YRZ) (×2)
Brand
\
Huanqiu/Wolong
Input
W
3,000
r/min
1,420
\
4
mm
25.4×22
Fin spacing
mm
1.8
Fin type
\
Pipe size
mm
Ф9.52
Pipe type
\
Coil(W×H)
mm
(1,590×685.8)+(1,590×685.8)
Number of circuits
\
18+18
Type
\
Axial fan
Outdoor fan
\
FN080-ADK (×1)
(Single
Motor Brand
\
Ziehl-Abegg
outdoor unit)
Motor Input
W
1,100
r/min
680
Compressor
Refrigerant oil
Indoor fan
Speed
Number of rows
Indoor coil
Speed
22
MCAC-PDSM-2013-04
No. of rows
Outdoor coil
(Single
outdoor unit)
\
3
mm
25.4×22
Fin spacing
mm
2.2
\
Fin type
Ф9.52
mm
Coil (W×D)
mm
1,250×914.4
Number of circuits
\
6
3
m /h
14,500
Pa
20
mm
Ф30
Indoor noise level
dB(A)
≤69
Outdoor noise level
dB(A)
≤64
Type
\
R410A
g
9,500×2
Control
\
MPa
4.4
Max. pipe length
m
60
Refrigerant
m
20
pipe
m
5
Indoor power wire
mm2
2
2
3×10.0mm （A,B,C）+2×6.0mm （N,GND）
Outdoor power wire
mm2
(4×1.0mm2)+ (4×1.0mm2)
Signal wire
mm2
(4×1.0mm2)+ (4×1.0mm2)
\
G4
mm
1,790×1,971×870
kg
665
mm
kg
105
Indoor air flow
Refrigerant
down)
Connection
wire
Filter
Indoor unit
Net weight
Outdoor unit
(Single)
Net weight
Notes:
1.
2.
3.
23
MCAC-PDSM-2013-01
Indoor model
MAD060T2N1S1
MA0541 (×2)
°C
0~40
°C
\
Indoor Power supply
V, Ph, Hz
380V~,3Ph,50Hz
V, Ph, Hz
380V~,3Ph,50Hz
W
39,000
A
70
Total capacity
W
59,100
Sensible capacity
W
53,190
Input
W
22,600
EER
W/W
2.62
Altitude
Cooling
E-heater
Capacity
W
9,000
Humidification
Capacity
kg/h
10
Model
\
ZP120KCE-TFD-522
Type
\
Scroll
Qty.
\
2
Brand
\
Copeland
Capacity
W
29,200
Input
W
9,200
Rated current (RLA)
A
20
A
118
Thermal protector
\
Internal
ml
3,253 (POE)
Model (× quantity)
\
Y(2)100L2-4-3KW(YRZ) (×2)
Brand
\
Huanqiu/Wolong
Input
W
3,000
r/min
1,420
\
4
mm
25.4×22
Fin spacing
mm
1.8
Fin type
\
Pipe size
mm
Ф9.52
Pipe type
\
Coil(W×H)
mm
(1,590×685.8)+(1,590×685.8)
Number of circuits
\
18+18
Type
\
Axial fan
Outdoor fan
\
FN080-ADK (×1)
(Single
Motor Brand
\
Ziehl-Abegg
outdoor unit)
Motor Input
W
1,100
r/min
680
Compressor
Refrigerant oil
Indoor fan
Speed
Number of rows
Indoor coil
Speed
24
MCAC-PDSM-2013-04
No. of rows
Outdoor coil
(Single
outdoor unit)
\
3
mm
25.4×22
Fin spacing
mm
2.2
\
Fin type
Ф9.52
mm
Coil (W×D)
mm
1447×1219
Number of circuits
\
12
3
m /h
17,000
Pa
20
mm
Ф30
Indoor noise level
dB(A)
≤72
Outdoor noise level
dB(A)
≤66
Type
\
R410A
g
11,500×2
Control
\
MPa
4.4
Max. pipe length
m
60
Refrigerant
m
20
pipe
m
5
Indoor power wire
mm2
2
2
3×10.0mm （A,B,C）+2×6.0mm （N,GND）
Outdoor power wire
mm2
(4×1.0mm2)+ (4×1.0mm2)
Signal wire
mm2
(4×1.0mm2)+ (4×1.0mm2)
\
G4
mm
1,790×1,971×870
kg
680
mm
kg
140
Indoor air flow
Refrigerant
down)
Connection
wire
Filter
Indoor unit
Net weight
Outdoor unit
(Single)
Net weight
Notes:
1.
2.
3.
25
MCAC-PDSM-2013-01
Indoor model
MAD070T2N1S1
MA0601 (×2)
°C
0~40
°C
\
Indoor Power supply
V, Ph, Hz
380V~,3Ph,50Hz
V, Ph, Hz
380V~,3Ph,50Hz
W
42,000
A
74
Total capacity
W
71,100
Sensible capacity
W
67,550
Input
W
26,800
EER
W/W
2.65
Altitude
Cooling
E-heater
Capacity
W
12,000
Humidification
Capacity
kg/h
10
Model
\
ZP137KCE-TFD-522
Type
\
Scroll
Qty.
\
2
Brand
\
Copeland
Capacity
W
32,600
Input
W
10,200
Rated current (RLA)
A
20.7
A
118
Thermal protector
\
Internal
ml
3,253 (POE)
Model (× quantity)
\
Y(2)100L1-4-2.2KW(YRZ) (×3)
Brand
\
Huanqiu/Wolong
Input
W
2,200
r/min
1,420
\
4
mm
25.4×22
Fin spacing
mm
1.8
Fin type
\
Pipe size
mm
Ф9.52
Pipe type
\
Coil(W×H)
mm
(2,453×660.4)+(2,453×660.4)
Number of circuits
\
26+26
Type
\
Axial fan
Outdoor fan
\
FN080-ADK (×1)
(Single
Motor Brand
\
Ziehl-Abegg
outdoor unit)
Motor Input
W
1,100
r/min
680
Compressor
Refrigerant oil
Indoor fan
Speed
Number of rows
Indoor coil
Speed
26
MCAC-PDSM-2013-04
No. of rows
Outdoor coil
(Single
outdoor unit)
\
4
mm
25.4×22
Fin spacing
mm
2.2
\
Fin type
Ф9.52
mm
Coil (W×D)
mm
1,448×1,219.2
Number of circuits
\
12
3
m /h
20,800
Pa
20
mm
Ф30
Indoor noise level
dB(A)
≤72
Outdoor noise level
dB(A)
≤66
Type
\
R410A
g
13,000×2
Control
\
MPa
4.4
Max. pipe length
m
60
Refrigerant
m
20
pipe
m
5
Indoor power wire
mm2
2
2
3×10.0mm （A,B,C）+2×6.0mm （N,GND）
Outdoor power wire
mm2
(4×1.0mm2)+ (4×1.0mm2)
Signal wire
mm2
(4×1.0mm2)+ (4×1.0mm2)
\
G4
mm
2,685×1,971×870
kg
910
mm
kg
150
Indoor air flow
Refrigerant
down)
Connection
wire
Filter
Indoor unit
Net weight
Outdoor unit
(Single)
Net weight
Notes:
1.
2.
3.
27
MCAC-PDSM-2013-01
Indoor model
MAD080T2N1S1
MA0752 (×2)
°C
0~40
°C
\
Indoor Power supply
V, Ph, Hz
380V~,3Ph,50Hz
V, Ph, Hz
380V~,3Ph,50Hz
W
48,000
A
91
Total capacity
W
81,100
Sensible capacity
W
73,800
Input
W
30,700
EER
W/W
2.64
Altitude
Cooling
E-heater
Capacity
W
12,000
Humidification
Capacity
kg/h
10
Model
\
ZP154KCE-TFD-522
Type
\
Scroll
Qty.
\
2
Brand
\
Copeland
Capacity
W
37,300
Input
W
11,600
Rated current (RLA)
A
25
A
140
Thermal protector
\
Internal
ml
3,253 (POE)
Model (× quantity)
\
Y(2)100L1-4-2.2KW(YRZ) (×3)
Brand
\
Huanqiu/Wolong
Input
W
2,200
r/min
1,420
\
4
mm
25.4×22
Fin spacing
mm
1.8
Fin type
\
Pipe size
mm
Ф9.52
Pipe type
\
Coil(W×H)
mm
(2,453×660.4)+(2,453×660.4)
Number of circuits
\
26+26
Type
\
Axial fan
Outdoor fan
\
FN071-SDK (×2)
(Single
Motor Brand
\
Ziehl-Abegg
outdoor unit)
Motor Input
W
940
r/min
900
Compressor
Refrigerant oil
Indoor fan
Speed
Number of rows
Indoor coil
Speed
28
MCAC-PDSM-2013-04
No. of rows
Outdoor coil
(Single
outdoor unit)
\
3
mm
25.4×22
Fin spacing
mm
2.2
\
Fin type
Ф9.52
mm
Coil (W×D)
mm
1,750×1,219.2
Number of circuits
\
18
3
m /h
23,300
Pa
20
mm
Ф30
Indoor noise level
dB(A)
≤72
Outdoor noise level
dB(A)
≤66
Type
\
R410A
g
17,000×2
Control
\
MPa
4.4
Max. pipe length
m
60
Refrigerant
m
20
pipe
m
5
Indoor power wire
mm2
2
2
3×10.0mm （A,B,C）+2×6.0mm （N,GND）
Outdoor power wire
mm2
(4×1.0mm2)+ (4×1.0mm2)
Signal wire
mm2
(4×1.0mm2)+ (4×1.0mm2)
\
G4
mm
2,685×1,971×870
kg
920
mm
kg
170
Indoor air flow
Refrigerant
down)
Connection
wire
Filter
Indoor unit
Net weight
Outdoor unit
(Single)
Net weight
Notes:
1.
2.
3.
29
MCAC-PDSM-2013-01
Indoor model
MAD090T2N1S1
MA0982 (×2)
°C
0~40
°C
\
Indoor Power supply
V, Ph, Hz
380V~,3Ph,50Hz
V, Ph, Hz
380V~,3Ph,50Hz
W
55,000
A
98
Total capacity
W
90,100
Sensible capacity
W
81,090
Input
W
34,300
EER
W/W
2.63
Altitude
Cooling
E-heater
Capacity
W
12,000
Humidification
Capacity
kg/h
10
Model
\
ZP182KCE-TFD-522
Type
\
Scroll
Qty.
\
2
Brand
\
Copeland
Capacity
W
44,000
Input
W
13,500
Rated current (RLA)
A
29.3
A
174
Thermal protector
\
Internal
ml
3,253 (POE)
Model (× quantity)
\
Y(2)100L2-4-3KW(YRZ) (×3)
Brand
\
Huanqiu/Wolong
Input
W
3,000
r/min
1,420
\
4
mm
25.4×22
Fin spacing
mm
1.8
Fin type
\
Pipe size
mm
Ф9.52
Pipe type
\
Coil(W×H)
mm
(2,453×660.4)+(2,453×660.4)
Number of circuits
\
26+26
Type
\
Axial fan
Outdoor fan
\
FN080-ADK (×2)
(Single
Motor Brand
\
Ziehl-Abegg
outdoor unit)
Motor Input
W
1,100
r/min
680
Compressor
Refrigerant oil
Indoor fan
Speed
Number of rows
Indoor coil
Speed
30
MCAC-PDSM-2013-04
No. of rows
Outdoor coil
(Single
outdoor unit)
\
3
mm
25.4×22
Fin spacing
mm
2.2
\
Fin type
Ф9.52
mm
Coil (W×D)
mm
2,250×1,219.2
Number of circuits
\
18
3
m /h
24,800
Pa
20
mm
Ф30
Indoor noise level
dB(A)
≤72
Outdoor noise level
dB(A)
≤66
Type
\
R410A
g
17,000×2
Control
\
MPa
4.4
Max. pipe length
m
60
Refrigerant
m
20
pipe
m
5
Indoor power wire
mm2
2
2
3×10.0mm （A,B,C）+2×6.0mm （N,GND）
Outdoor power wire
mm2
(4×1.0mm2)+ (4×1.0mm2)
Signal wire
mm2
(4×1.0mm2)+ (4×1.0mm2)
\
G4
mm
2,685×1,971×870
kg
920
mm
kg
220
Indoor air flow
Refrigerant
down)
Connection
wire
Filter
Indoor unit
Net weight
Outdoor unit
(Single)
Net weight
Notes:
1.
2.
3.
31
2.4 Dimen
nsion (Unit: mm)
Indoorr unit: MAD0
020T1N1S1, MAD025T
T1N1S1, MA
AD030T1N1S
S1
32
M
MCAC-PDSM
M-2013-01
MCAC-PDSM
M-2013-04
Midea
View of op
pened doorr
Indoorr unit: MAD0
035T1N1S1
33
3
M
MCAC-PDSM
M-2013-01
Indoorr unit: MAD0
040T2N1S1, MAD045T
T1N1S1, MA
AD050T2N1S
S1, MAD0600T2N1S1
070T2N1S1, MAD080T
T2N1S1, MA
AD090T2N1S
S1
Indoorr unit: MAD0
34
MCAC-PDSM
M-2013-04
Midea
Outdoo
or unit: MA
A0331, MA04
431, MA054
41, MA0601
or unit: MA
A0752, MA09
982
Outdoo
Mode
el
MA033
31
MA043
31
MA054
41
MA060
01
L
H
147
70
988
9
166
60
MA075
52
198
80
MA098
82
248
80
W
690
1290
35
5
2.5 Servic
ce space
Indoorr unit (Unit: mm)
Outdoo
or unit with
h horizontal installation
n (Unit: mm)
Outdoo
or unit with
h vertical ins
stallation (U
Unit: mm)
36
M CAC-PDSM
M-2013-01
M
Midea Precision AC Technical Manual-D
Down Delivery Serie
es
2
2.6 Wiring diag
gram
E-box view o
of indoor unit
3
37
MCA
AC-RTSM-2013-04
M
Indoor unit w
with single systtem- Controlling
g connection am
mplification figurre:
Available for M
MAD020T1N1S1, MAD025T1N1S1,
M
MA
AD030T1N1S1, and MAD035T1N1S, MAD045T1N1S1
Indoor unit w
with dual-system
m- Controlling c
connection amp
plification figure
e:
Available for M
MAD040T2N1S1, MAD050T2N1S1,
M
MA
AD060T2N1S1, MA
AD070T2N1S1, MA
AD080T2N1S1, and MAD090T2N1S1
3
38
MCAC
C-PDSM-2013-01
Midea Precision AC Techniccal Manual-Do
own Delivery S
Series
Outdoo
or unit- MA
A0331, MA04
431, MA054
41, MA0601
Outdoo
or unit- MA
A0752, MA09
982
39
MCAC-RT
TSM-2013-04
M
MCAC-PDSM
M-2013-01
3. Installlation
 The
e indoor unitt must be installed on th
he ground off the device room or com
mputer room
m. And the
outtdoor unit is installed on the ground of the outdo
oors or othe
er rooms.
 Beffore the insttallation, con
nfirm whethe
er the installation enviroment meet tthe requirem
ments of
serrvice, and co
onfirm wheth
her the build
dings need to
o be configu
ured with thee constructio
on work of
pipeline laying,, wiring and ventilation p
pipe.
 Installation worrk must stric
ctly follow th e design dra
awing.
 The
e whole systtem layout diagram:
d
Notes:
ufacturer
——: Pipelines proviided by manu
he site-laying pipeline (Done by technic
cians)
------: Th
※ : Forr system norm
mal operation
n and mainten
c
aare supposed
d to be used.
nance convenience, the components
(Do
one by sit)
+
: When the equiv
valtent length
h of the pipe exceeds 30 meters,
m
then it should be eeqquipped with these
These optiona
al componen
nts need to be
e purchased by another o
order).
components. (T
40
MCAC-PDSM
M-2013-04
Midea

Wh
hen the cond
denser is hig
gher than co
ompressor, install revers
se bend on tthe inlet and
d outlet pipess
of the condenser, to avoid
d liquid refri gerant back
kflow when the
t units stoops. When installing
i
the
e
revverse bend, it must ensu
ure that the top elbow pipe
p
of the re
everse bendd higher than
n the top row
w
copper pipe off condenser.

Th
he installation diagram, when
w
the ind
door unit is higher
h
than outdoor unitt.
41
1
M
MCAC-PDSM
M-2013-01
3.1 Storag
ge environ
nment
Items
Requirement
R
ts
Sto
orage environ
nment
Indoor, clean.
Am
mbient humidiity
5%~85% RH (N
No condensa
ation)
Am
mbient temperrature
Indoor unit: -20°°C~54°C; Outtdoor unit: -40
0°C~70°C.
Sto
orage time
Tottal time of trransportation
n and storage time shouuld not excee
ed 6
months. If exce ed 6 months
s, it need to re-calibrate
r
thhe capacity.
3.2 Indoorr installatiion


Take down the
e packaging case, accorrding to the package dia
agram to rem
move the pa
ackaging
wo
ooden case.
Mo
ove the backk plate, and the unit basse was fixed
d in the botto
om wood trayy with M8 bolts, remove
e
the
e bolts with wrench.
w
 In o
order to ensure that the environmen
nt control sy
ystem in the air conditionning room works
w
norrmally, it sho
ould do the moisture-pro
m
oof and heatt preservatio
on work.
 Computer room
m should have good the
ermal insulattion and sea
aled moisturee-proof laye
er, the
mo
oisture-prooff layer of ceiling and walll must use polyethylene
p
e film materiials. The painting of
con
ncrete wall and
a ground must
m
be mo isture-proof.
 Outdoor air entter into the room
r
may in
ncrease the system cooling, heatingg, humidifyin
ng and
deh
humidifyting load, so it is
s necessaryy to minimize
e outdoor air enter into tthe room. Outdoor
O
air
inhaled quantitty should rem
main below 5%of whole
e indoor air circulation
c
am
mount, all th
he doors and
d
win
ndows should be fully en
nclosed type
e, and aperture are as small
s
as posssible.
 Beccause the air conditione
er will producce the condensate and water leakaage may cau
use the
dam
mage of othe
er precision equipmentss nearby, the
ere is not the precision eequipments near the
indoor unit, and
d the installa
ation scene of air condittioner must be providedd the drainag
ge pipelines.
 To ensure the normal
n
operration of indo
oor unit, it should choos
se capaciouss space as the
t indoor
unit installation
n site.
 Do not install th
he indoor un
nit in the narrrow space, or it would block
b
the airr flow, and shorten the
refrrigeration cyycle, and the
en leads to a short circuit of returnin
ng air and ai r noise.
42
MCAC-PDSM
M-2013-04
Midea
 Do not fix the indoor unit in
n the sunken
n place or att the end of the long andd narrow roo
om.
 Do not make several indoo
or units to be
e huddled to
ogether, to avoid
a
crossinng the air an
nd producing
g
the
e unbalanced
d competitio
on operation .
 Do not install other
o
equipm
ments on its upper part, convenient for its normaal maintenance.
 Acccording to th
he bottom installation sizze of the ind
door unit, the
e installationn base should be
insttalled.
 Pla
ace rubber damping matts on the top
p of the insta
allation base
e and steel pplate bottom
m.
 Dettermine the installation position, and
d according to the site condition
c
andd user’s requierments to
o
insttall the insta
allation base
e at the seleccted position
n.
 Use
e bolts, cush
hion, flat ma
at and nuts tto fix the air conditioner on the basee.
 All outside plattes of the un
nit should no
ot allow bearring weight, it must be cconsidered when
w
cho
oosing installation angle
es and fixed holes.
 Sin
ngle-door un
nit installation
n basing sizze: (Unit: mm
m)
 Dua
al-door unit installation basing size:: (Unit: mm)
43
3
M
MCAC-PDSM
M-2013-01
 Thrree-door uniit installation
n basing size
e: (Unit: mm
m)
Item
Specification (mm
m)
Steel plate
100×100×(5~6.5))
Angle iron (Stteel channel)
40×40
0×3 (50×37×4..5)
Anti-shockk
Top
Thickness: 3~5
rubber pad
d
Bottom
m
Thic
ckness: 10~12
2
Fixing hole for expansion bolt
H
Remarrk
Rubberr materical can
n choose isoprrene rubber, different
d
bulyl
rubber or
o rubber gask
ket with the saame similar prroperties.
Install as
a user require
ements.
300
This is only
o
for refere
ence, it should according to the actual
needs of
o users.
Notes:
The installation bas
se should be strong to su
upport the ind
door unit.


44
To prevent defformation an
nd damage d
during trans
sportation, it was added fasteners or vibration
red
duction mate
erials on the
e key placess when the unit
u left facto
ory. Removee the transpo
ortation
fassteners and vibration reduction matterials before
e installing and
a debuggiing the unit.
Firrst dismantle
ed three L sh
hape fixed m
metal plates, and install the bolts annd gaskets with
w the boltss
fasstening torqu
ue: 12±1N.m
m.
MCAC-PDSM
M-2013-04
Midea
3.3 Installling outdo
oor units







Aftter the unit arrives,
a
chec
ck whether i t is damage
ed during the
e shipment.
To ensure the heat dispersion of the u
unit, intall the outdoor un
nit at the willl-ventilatde outdoor,
avoid places with
w dust, sn
now, etc. It w
will block the
e condensed coils.
It is suggested
d that user should
s
horizo
ontal intall th
he unit if the
e installation conditions allow, which
h
he
elp to low down the noise
e.
Insstall the unit far away fro
om the resid
dential area.
Wh
hen it is insttalled at the top of the b uilding, pay attention to the water pproof layer and obey the
e
related local ru
ules.
Th
he installation direction please
p
referss to the insta
allation arrow label on thhe outdoor unit.
u
Ou
utdoor unit has
h two meth
hods of insta
allation: horizontal insta
allation and vvertical insta
allation.
H
Horizontal:

Vertical (Top view):
Insside the pacckage of outd
door unit, th ere are fourr supporting bars which are fixed in horizontal
inssallation.
For horizontal ins
stallation:
door unit sup
pporting barr to ghe unit first, use 6 screws to fixx the supporrting bar
 Insstall the outd
(M
M6×23 Screw
ws in access
sories packa
age), totally 4 bars.
45
5
M
MCAC-PDSM
M-2013-01
(Un
nit: mm)
Mode
el
MA033
31
MA043
31
MA054
41
MA060
01

L1
H1
1112
1
764
1310
1
MA075
52
1604
1
MA098
82
2105
2
D1
D2
49
63
1066
It is suggested
d that use M6×20
M
expan
nsion bolt for fixing the mounting
m
baase.
For verrtical installlation

It iss suggested
d that use M6×20 expan
nsion bolt for fixing the mounting
m
baase.
3.4 Conne
ecting refrrigerant piipe



46
Fo
or ensure safety, before welding the pipelines and welding spots,
s
must completely discharge
the
e nitrogen in
n the air conditioner systtem, which can
c release the system pressure.
Do
o the heat insulation for the copper p
pipes. When
n the copperr pipes go thhrough the walls
w
or othe
er
ob
bstacles, vibrration isolatiing measure
ements as shock pad sh
hould be donne for avoidiing the
copper pipes direct
d
contac
ct with the w
wall, meanwhile pay atte
ention to keeep dust, aqu
ueous vapor,,
pa
articles and so
s on away from
f
the cop
pper pipes.
It n
needs to app
ply high qua
ality silver fib
ber for welding the pipeline connecttors. During the welding
MCAC-PDSM
M-2013-04





Midea
pro
ocess, it nee
eds to charg
ge nitrogen i nto the pipe
eline for protection.
Ma
ake sure the
e right conne
ecting pipe ssize.
n height of unit
Ma
ake sure the
e outdoor un
nit installation
u pipeline installation..
Fill refrigerant and add reffrigerant and
d add refrige
erant oil of unit
u pipeline installation.
Th
he pipeline pressure
p
drops, compresssor oil return, noise red
duction and vibration reduction
should be considered duriing the desig
gn and cons
struction pro
ocesses.
If o
one way equ
uivalent leng
gth is longerr than 30m, or
o the vertical height deefference of indoor and
outdoor units is
i higher tha
an the numb
berical showed in following table, theen it needs to confirm
wh
hether need to add the extended
e
co
omponents before
b
installation.
Relative
R
posiition




Valuee
Outdoo
or unit installe
ed level is hi gher than ind
door unit
Max. 220m
Outdoo
or unit installe
ed level is low
wer than ind
door unit
Max. -55m
Insstall grease traps (oil loo
op) every 7.5
5 meters of the all vertic
cal height tuubes.
Th
he suggested
d pipeline sizes in the fo
ollowing table are equivalent length , the friction
n losses of
elb
bow and the
e valve have counted. Th
he installer will
w confirm whether
w
it iss appropriate
e according
to the site conditions.
Outd
door diamete
er of
liquid
d pipe (Inch)
90° B
Bend
45° Bend
B
3/8
0.2
21
0.1
0
0.76
1/2
0.2
24
0..12
0.76
5/8
0.2
27
0..15
0.76
3/4
0..3
0..18
0.76
7/8
0.4
44
0..24
1.1
1-1/8
0.5
56
0.3
0
1.4
Equiva
alent length (Meter)
(
T-sh
hape three-w
way
hen the unit leave the fa
actory, it will has a small amount of refrigerant iin the indoorr unit, the
Wh
outdoor unit iss filled with nitrogen
n
gass to stay the pressure, and must be put off all th
hese
ma
aterials befo
ore connect the
t indoor u
unit and outd
door unit at site.
s
Wh
hen welding
g the copper pipe with th
he indoor an
nd outdoor unit, pack thee wet cloth on
o the ball
valve before welding.
w
Duriing welding, pay attentio
on to do not burn the labbels near the
e base pane
el
and side pane
el of unit.
47
7



MCAC-PDSM-2013-01
Do not open the system pipeline more than 15 minutes, or it will lead to freeze the cooling oil and
influence the usage lifespan of the key parts in the system and the system operation stability.
The horizontal part of the gas pipe should be sloped down part after led out from the compressor,
its gradient at least should be 1:200 (every 1m should drop 5mm). But if the air exhaust pipe is
located at the place of cooling equipments (including under the block up floor) then it should be
insulated.
Considering the diameter will cause the system pressure drop loss, the copper pipes diameters
connecting between indoor and oudoor units.
Indoor unit model
MAD020T1N1S1
MAD025T1N1S1
MAD030T1N1S1
MAD035T1N1S1
MAD040T2N1S1
MAD045T1N1S1
MAD050T2N1S1
MAD060T2N1S1
MAD070T2N1S1
MAD080T2N1S1
MAD090T2N1S1
Length
10m
20m
30m
40m
50m
60m
Gas pipe
22mm
22mm
22mm
22mm
22mm
22mm
Liquid pipe
13mm
13mm
13mm
13mm
16mm
16mm
Gas pipe
22mm
22mm
22mm
22mm
25mm
25mm
Liquid pipe
13mm
13mm
16mm
16mm
16mm
16mm
Gas pipe
22mm
22mm
22mm
22mm
25mm
25mm
Liquid pipe
13mm
16mm
16mm
16mm
16mm
16mm
Gas pipe
22mm
22mm
22mm
22mm
25mm
25mm
Liquid pipe
13mm
16mm
16mm
16mm
16mm
16mm
Gas pipe
22mm
22mm
22mm
22mm
22mm
22mm
Liquid pipe
13mm
13mm
13mm
13mm
13mm
16mm
Gas pipe
22mm
22mm
25mm
25mm
28mm
28mm
Liquid pipe
16mm
16mm
16mm
16mm
19mm
19mm
Gas pipe
22mm
22mm
22mm
22mm
25mm
25mm
Liquid pipe
13mm
13mm
16mm
16mm
16mm
16mm
Gas pipe
22mm
22mm
22mm
22mm
25mm
25mm
Liquid pipe
13mm
16mm
16mm
16mm
16mm
16mm
Gas pipe
22mm
22mm
22mm
22mm
25mm
25mm
Liquid pipe
13mm
16mm
16mm
16mm
16mm
16mm
Gas pipe
22mm
22mm
25mm
25mm
28mm
28mm
Liquid pipe
16mm
16mm
16mm
16mm
19mm
19mm
Gas pipe
22mm
22mm
25mm
25mm
28mm
28mm
Liquid pipe
16mm
16mm
16mm
16mm
19mm
19mm
Notes:
If the pipe length is more than 60m, please consult the manufacturer.
48

When the pipe equivalent length is more than 30m, then it needs to install the extended
components. During the extended components installation, to prevent pipelines open, it
suggested that install the extended the electromagnetic valve body components on the outside
of the liquid pipe ball valve, or int the outside or the bottom of the equiment.

So in the electromagnetic valve installation operation process, it do not need to cut the indoor
pipeline, and after the whole system installation, then open the ball valve for pressurizing and
vacuum operation, to avoid moisture absorption of the compressor frozen oil, and ensure that
MCAC-PDSM
M-2013-04

Midea
the
e operation of
o the compressor and iits lifespan.T
Trash and fo
oreign matteers may com
me into the
pip
pe in the pro
ocess of pipe
e intallation. Be sure to blow them off
o with niltroogen before connecting
the
e pipe to the
e outdoor un
nits.
Th
he electroma
agnetic valve
e wire conne
ection as the
e following figure:
Siingle-system type
al-system type
Dua
t
3.5 Vacuu
um and add refrigerant





Aftter finished piping conne
ection betwe
een the indo
oor and outd
door unit, oppen all ball valves, and
2
the
en filled with
h 30kgf/cm nitrogen fro m the outdo
oor unit cove
er connectorr, and then pressurizing
p
forr 24 hours.
Un
nder the pipe
eline pressu
urizing was n
no problem, use vacuum
m pump to vaacuum refrig
geration
sysstem loop to
o below 20P
Pa, and keep
p for 2 hours
s, if the pressure is no ppicks up, the liquid sight
gla
asses in indo
oor unit will indicate to b
be green.
Aftter the vacuum inspectio
on, the refrig
geration sys
stem should static filling quickly by pecified
p
am
mount liquid refrigerant and
a adds su
uitable amou
unt refrigeran
nt oil.
If tthe connecting pipe leng
gth of indoorr unit and ou
utdoor unit is
s within 10m
m, the filling refrigerant iss
12
2kg.
Wh
hen the connecting pipe
e length is m
more than 10
0m, then it needs to addd refrigerant into the
sysstem for the
e system norrmal operatio
on. The calc
culation for the
t added q uantity of re
efrigerant is
as the folling formula:
f
49
9
M
MCAC-PDSM
M-2013-01
Ad
dding amountt of refrigeran
nt (kg) =
Co
orresponding unit Length additional reffrigerant amo
ount (kg/m) ×T
Total length o
of extend liqu
uid pipe (m)
The corresponding
g unit length additional re
efrigerant am
mount for different liquidd pipe diame
eters:
Liquid pipe outer diame
eter (mm)
Refrigeran
nt adding am
mount per m
meter (kg/m)
12.7
0.11
0
16
0.17
0
19
0.26
0
22
0.36
0
25
0.52
0
28.6
0.68
0
Tottal length of the
t extend liq
quid pipe (m) =
Tottal length of liquid
l
pipe (m
m) -10m

Ad
dd refrigeran
nt will cause the system refrigerant oil
o dilution, which
w
affect the refrigerant oil
lub
brication and
d cooling efffect, thereforre, it needs to add refrig
gerant oil. Addditional form
mula is as
follow:
Ad
dded refrigera
ant oil amoun
nt (ml) =
Re
efrigerants ad
dditional amount (kg) × 22..6
3.6 Water pipe insta
allation



Co
ondensed water
w
drainag
ge pipes of humidifier and
a evapora
ator are gatthered by th
he T adapte
er
and drained out. The inne
er diameter o
of the tube is 30mm, if more than 3 sets units share a roo
ot
pip
pe, then the tube inner diameter
d
sho
ould be miniimum 40mm
m.
Th
he drainage pipe should be conn ected with a U shape
e joint pipe,, which tem
mperature of
o
continuous the
ermal resista
ance is high er than 100°C. The U shape must bbe installed vertically.
Th
he water leakage detecttor should be
e installed under
u
the joiint of drainaage pipe and
d root, which
h
wirrings is conn
nected with terminal 01 and 47. If th
he place und
der the pipee joint is flat, the detecto
or
can directly be
e installed th
here. If the p
place is une
even, the de
etector shou ld be installed the place
e
wh
here is easy to collect th
he water.
No
otes:
50
MCAC-PDSM
M-2013-04
Midea
B ≥ P/10+20 (Un
nit: mm)
A ≥ B/2 (Unit: mm)
m
P: Air outlet sta
atic pressure (Unit: Pa)

Hu
umidifier also
o needs to connect witth an inlet water
w
pipe. Install a sidee-pass stop valve and a
filte
er device on the waterr inlet pipe, for mainten
nance conve
enience. Thee filter mesh number of
o
filte
ers should not
n less than
n 40.

Re
equirements for the wate
er quality inllet to the humidifier:
LLimit valve
Fin
nite index off ‘ordinary’ water
w
qualityy
PH
H value
Re
elative electrric conductiv
vity at 20°C
To
otal hardnesss
PH
So
olid waste att 180°C
Iro
on + Mangan
nese
Ch
hlorine
Silica
Ch
hloride ion
Ca
alcium sulfatte



Max.
7
8.5
SR,20°C
C
μs/c
cm
3000
1250
TH
mg/l Ca
aCO3
=
400
mg/l Ca
aCO3
=
300
CR
mg/l
(**)
(*)
R180
mg/l
(**)
(*)
mg/l Fe
e+Mn
=
0.2
ppm Cl
=
30
mg/l SiO
S 2
=
20
=
0.2
=
100
Te
emporary hardness
To
otal non-solu
uble solid
Miin.
mg/l Cl
-
mg/l Ca
aSO4
PU
U tube can be directly connected with outer water
w
pipe. It must seaal connecto
or to preven
nt
lea
akage.
Th
he normal working
w
pres
ssure range
e of main pipe
p
is 100k
kPa to 800kkPa. It sho
ould install a
pre
essure reduced device on the place
e pressure more
m
than 800kPa.
8
If thhe main pipe
e pressure iss
below 100kPa
a, it should se
et water colllecting sump
p and water pump systeem. The wate
er inlet pipess
of main pipelin
ne must in accordance w
with the loca
al regulations.
Th
he water inle
et pipe conn
necting acce
essories as following sh
hows. It hass equipped with
w the unitt,
the
e connectorss of the wate
er pipe are o
only for reference to cho
oose.
51
1
M
MCAC-PDSM
M-2013-01
3.7 Electric connec
ction




52
All the power wires,
w
contro
olling wires a
and the grounding conn
nection shouuld observe the nationall
and local regu
ulations and electrical ru
ules.
Th
he main pow
wer supply re
equirementss: 380V AC, 50Hz, 3Ph.
Be
efore connecct the electric circuit, use
e the voltme
eter to test th
he input pow
wer voltage, and confirm
m
the
e power sup
pply has bee
en closed.
Ba
ase panel ha
as three cuttting holes to
o passby the
e wirings.

If it is difficult for
f piping an
nd wiring fro m the base panel, then it can choosse from the side panel
forr connection
n. Knock dow
wn the plate of side panel cutting ho
ole, (2 cuttinng holes both
h on right
and left sides) according to the actual need to cho
oose import and export pports, but it must ensure
e
tha
at any two of
o the pipeline, power wi re and signa
al wire to outlet from thee different ho
ole.


Fixx the spare wirings
w
on th
he electric ccable fastening clamp.
Wiiring refers to
t indoor uniit power wiriing diagram, as following picture.
MCAC-PDSM
M-2013-04

Midea
Ind
door unit con
ntrolling con
nnection amp
plification fig
gure:
Sing
gle-system type
al-system type
Dua
t

Wiiring refers to
t outdoor unit wiring dia
agram, as fo
ollowing pictture,
53
3

M
MCAC-PDSM
M-2013-01
Fie
eld wiring,
Single-sys
stem type


54
Dual-system type\
n pipe or shielding wire ffor the outdo
oor parts of the connectting wires off indoor unit
Usse protection
and condense
er.
Do
o not contact the cables with high te
emperature objects
o
(Suc
ch as non-heeat insulated
d copper
pip
pes, compre
essor, etc.) fo
or protect th
he insulation layer.
MCAC-PDSM
M-2013-04
Midea
3.8 Trial ru
un

Inttroduction off LCD manu
ual operator functions
Fo
or all th butto
ons, when it is displaying
g or modifying the opera
ation param
meters, show
ws a green
lam
mp to mean a paragraph
h is selected
d silicone rubber button which has tthree different color
lam
mps.
Dis
scriptions of
o display lamp:
On
n/Off key: Green
G
color, light up mea
ans that unit is on. Flash means thatt close the unit
u by switch
h
inp
put or monito
or.
ns one or more
Ala
arm key: Re
ed colour, Light up mean
m
alarms.
OK
K key: Yellow
w colour, light up meanss that device
e normally is
s powered.
uttons desc
criptions of LCD manu
ual operatorr
Bu
Menu:
Ba
ack to Menu (M0) under any displayy situation (E
Except checking factory parameters
s situation)
willl display unit status, pro
obe reading and operatiing mode, under factoryy interface, pressing
p
thiss
button can go back.
enance:
Mainte
hift to the firsst page of the maintenan
nce interface
e (A0), usua
ally the mainntenance parrameters are
e
Sh
use for check the operatin
ng status, prrobe reading
g, maintenan
nce, calibrattion reading and manual
op
peratiom of the device.
Print:
Qu
uick display the pLAN ad
ddress of cu
urrent contro
ol plate.
put):
Status (Input/Outp
hift to the firsst page of input/output in
nterface (I0)), input/output status of input and ou
utput
Sh
pa
arameters dissplay contro
ol plate.
55
5
M
MCAC-PDSM
M-2013-01
Time:
Sh
hift to the firsst page of tim
me program (K0). Time parameter is used to diisplay and set the
op
perating para
ameter of clo
ock plate an
nd activate time zone.
Set:
hift to the firsst page of se
et point prog
gram (S1).
Sh
Progra
am:
hift to the firsst page of us
ser interface
e (P0). User interface is used to chaange the uniit operating
Sh
mo
ode.
Query::
Wh
hen the unit is under gro
oup control sstate, can press
p
this button to shift different unit display
pa
ages.
on/off:
On
n/off the unitt.
alarm:
Dissplay the ala
arm, elimina
ate the alarm
m sound, and
d eliminate the
t current aalarm.
Up:
If tthe cursor moves
m
to the upper left ccorner, click this button can
c page upp in the same
pro
ogramsectio
om; If the cursor moves to a certain parameter position,
p
clicck this button
n to increase
e
the
e parameterr value.
Down::
If tthe cursor moves
m
to the upper left co
t
button can
c page dow
wn in the sa
ame program
m
orner, click this
section; If the cursor move
es to a certa
ain paramete
er position, click
c
this buttton to decre
ease the
pa
arameter value.
enter:
Ge
enerally movve the curso
or from the u
upper left to the setting area,
a
after seetting param
meters then
pre
ess this buttton to confirm
m and make
e the cursor move to the
e next settingg parameterr.

56
Be
efore trial run
n, the mecha
anical part a
and eletrical part shoud be checkedd first.
MCAC-PDSM
M-2013-04
Midea

Th
he mechaniccal part:
 Make sure
e remove th
he protective
e materials fo
or the transp
portation. Chheck the fas
stening
situation of
o motor whe
eel and fan wheel, and also check the
t parallelissm of motorr wheel and
fan whell and the tens
sion of the b
belt.
 Make sure
e the refrige
erant and lub
brication oil have been filled
f
strictly..
 Make sure
e the water drainage pip
pelines of hu
umidification
n system hav
ave been con
nnected
reliably an
nd check the
e leakage.
 Make sure
e the heating belt of com
mpressor ha
as been pre--heated oveer 12 hours.
 Make sure
e the room temperature
t
e is over 20°C and has some
s
thermaal load. If no
ot, it should
be used other
o
heating
g devices orr operated th
he electrical heating of tthe unit to pre-heat the
room environment, an
nd make surre there are rated capac
city thermal load for trial run.
 Under the
e situation in
n winter, it ne
eeds to man
n-made shad
dow parts off condensed
d area and
limit the condensed
c
air
a volume to
o increase th
he condense
ed pressure..

Ele
ectrical part::
 Make sure
e the main power
p
input woltage is in the range of -10%~155% voltage. Power
disconneccting switch of the outdo
oor unit has been closed
d.
 Make sure
ntrolling wire
e all the elec
ctrical or con
es are corre
ectly connectted, and fas
sten all the
connectorrs of electric
cal and contrrolling conne
ections.
 When term
minal numbe
er 22 and 5 are connected well, the
e outdoor fann can not receive the
control sig
gnal from ind
door unit, an
nd it can nott operate. It will cause thhe system stop
s
as high
pressure.
 Separated
d arrange th
he power cab
ble and the low voltage controlling ccable.
 It has enssured that th
he phase seq
quences of the
t three-ph
hase componnents are th
he same
when leavving the facttory. It only n
needs to ma
ake sure the phase sequuence is corrrect. If fault,,
change any two wires
s between A
A, B,C of the
e main power supply.

Th
he system manual
m
detec
ction function
n:
Un
nder standbyy state, the controller
c
prrovides the functions
f
of manual on aand off at sitte to detect
the
e status of th
he system fu
unctional co
omponents, detailed
d
ope
eration stepss as followin
ng:
 Switch on
n the main power supplyy, at that time, the unit is
s under stanndby state, and
a the
indication lamp on the
e upper righ
ht corner of the
t main con
ntroller will ddisplay green, the
manual operator disp
play interface
e will display
y the unit wa
as turned offf.

nce key on th
he manual operator,
o
and
d enter to thee maintenan
nce interface
e,
Press the Maintenan
t page to A5
A interfacee, and then it needs to
and keep pressing the Down buttton to shift the
aintenance password.
p
type in ma
Notes:
The mainte
enance passw
word can be got from man
nufacture.

After conffirm the pass
sword, keep
p pressing th
he Down button to enterr the followin
ng interface,
57
7
M
MCAC-PDSM
M-2013-01
and use th
he enter key
y to move th
he cursor position, and use
u the Dow
wn button to carry out the
e
al components, and the
manual on/off setting of the critica
en press the enter key for
confirmation.

Ma
anual operattor display and
a operatio
on methods
 After the unit
u is on, en
nter to the m
main interfac
ce and it will display som
me current basic
b
paramete
ers setting, in
nclude clockk message, curren
c
ambient temperaature and hu
umidity value
e
and the unit status. Press
P
the Se
et button to set
s the temp
perature andd humidity, and through
the enter key to move
e the cursorr and use the
e Up and Do
own keys too change the
e parameterr
and presss enter key for
f confirma
ation.

Press the
e Menu butto
on to go bacck to M0 pag
ge, and pres
ss Down keyy to query th
he current
operating mode, or ad
djust the settting paramtters, after ad
djusted the ssetting param
meters and
on.
press entter button for confirmatio
58
MCAC-PDSM-2013-04

Compressor checking: Press the Set key, the setting temperature to be room temperature
minus 5°C, the relative humidity to be the same as the room temperature, and press enter
to observe the compressor whether operates or reverses. (The compressor reverse then it
will has abnormal voice.)
Note:
The compressor cannot be reversed over 30 seconds, and it should be judged immediately and
cut off the power.
Back to M0 page, and press Status to check the rising pressure of the compressor is
normal or not, and at the same time, the outdoor fan should be high speed operating, and
the stable pressure of the compressor should about 30bar.

Cooling state detection: Press the Menu and press the Down button to check the current
mode is cooling or not.

Dehumidification function detection: Press the Set to change the temperature as the
same as the room temperature, and relative humidity set to the room temperature minus

5%RH. Press enter and the compressor will be normally operated, and then press the
Menu, press Down key to check the current mode is dehumidification or not.
Humidification function detection: Operate the humidifier switch, press the Set to change
the temperature as the same as the room temperature, and the relative humidity set to be
the room temperature plus 5%RH, then press enter to check the compressor stops or not
and the humidifier starts to inlet water or not. Press the Status, find the li page, and check
the current flow of the humidifier whether increased gradually, and wait the action of the

humidification tank change from Water inletting to be Evaporating. Press Manual
drainage switch to drain off the water.
The first grade heater detection: Operate two electrical heater switchs, press Set to set
the temperature to be room temperature plus 2°C, and the humidity stays the same as the
indoor humidity. Press enter to check whether stop humidifying and whether operate the
first grade electrical heating pipe, and then press Menu, Down key to check whether
display heating mode.




The second grade heater detection: Press Set to set the temperature to be room
temperature plus 4°C, and the humidity stays the same as the indoor humidity. Press enter
to check whether operate the second grade electrical heating pipe, and then press Menu,
Down key to check whether display heating mode.
Dehumidification heating mode: Press the Set button to change the relative humidity to
be indoor humidity minus 5%, press enter to check the compressor whether operates, and
then press Menu, Down to check whether display dehumidification heating mode.
Humidification heating status detection: Press Set to change the relative humidity to be
indoor humidity minus 5%, press OK to check the compressor whether stops and the
humidifier starts to inlet water and starts humidifying or not, at that time the humidification
tank will be getting hot, and then press Menu, Down to check whether display
humidification heating mode. Press Manual drainage switch to drain off the water.
Cooling humidification status detection: Press Set key to change the temperature to be
indoor temperature minus 5%, press enter, and operate the unit after the unit stops one
minute, to check whether continue humidifying or not; and press Menu, Down to check
whether display cooling humidification mode.
59


60
MCAC-PDSM-2013-01
Safe operation of refrigerant system detection: Operate the compressor, and after the
unit is stable operated then check whether there are bubbles in the liquid sight glass. Adjust
the thermal expansion valve to the suction degree of overheating be about 5°C~8°C, and
each adjustment should not over 1/2 circle and at least observe over 15 minutes every time.
Observe the compressor gas suction pipeline, make sure the pipeline and the compressor
cover have no condensed water and eliminate the potential liquid slugging danger. Under
the status of 24°C 50%RH air return and 29~30bar condensing pressure, the compressor
gas suction pressure should over 9bar. After detection, adjust the temperature and humidity
back to the default setting value or the initialization setting value.
Steps after trial run
 Reset the unit to default status.
 Check and make sure the temperature and humidity setting value and control precision are
reasonable.
 Check and make sure other functions are reasonable.
MCAC-PDSM
M-2013-04
Midea
4. Contrrol syste
em
4.1 Table of main co
ontrol com
mponents and control load
No.
1
2
3
4
5
6
7
8
9
10
11
12

Name
Conttroller
Operation displa
ayer
Tem
mperature & h
humidity sen
nsor
OEM
M humidifier connector component
c
Fan speed regu lating inverter
Pres
ssure transm
mitter
Fan pressure diffferernce sw
witch
Heatter 1
Heatter 2
Com
mpressor
Inner fan
Oute
er fan
quantity
1
1
1
1
1
1
1
1
1
1
1
1
agram of the main contro
oller termina
als
Scchematic dia
Code
Name
J10
Sttandard use
er port, nonn
nect to manu
ual operator
N01
In
ndoor fan
N02
Compressor 1
N03
Compressor 2
N04
E--heater 1
N05
E--heater 2
N06
Dehumidificattion solenoid
d valve
N08
Alarm output
N011
Humidifier
N012
Humidifier wa
ater inlet valv
ve
N013
Humidifier wa
ater outlet va
alve
Y1
In
ndoor fan reg
gulation
Y3
Outdoor
O
fan rregulation 1
Y4
Outdoor
O
fan rregulation 2
61
1
ID1
Compressor 1 high press
sure
ID2
Compressor 2 high press
sure
ID3
E--heater 1 ovverload
ID4
E--heater 2 ovverload
ID5
Phase seque nce protectiion
ID6
In
ndoor fan ovverload
ID7
Air flow switch
h
ID8
Remote contrrol
ID9
Compressor 1 low pressu
ure
ID10
Compressor 2 low pressu
ure
ID11
Humidifier wa
ater level ala
arm
ID12
Sparkles alarrm
ID13
Fiilter screen b
blocking
ID14
Water
W
leakag
ge alarm
ID13H
To
o 220V sign
nal
ID14H
To
o 220V sign
nal
B1
In
ndoor humid ity
B2
Air dischargin
ng pressure 1
B3
Air dischargin
ng pressure 2
B4
Outdoor
O
temp
perature
B5
In
ndoor tempe
erature
B6
Air outlet tem
mperature
B7
Electric condu
uctivity conn
nector
B8
Humidification
n current
T
TX-/TX+

62
M CAC-PDSM
M-2013-01
RS485 Conca
atenating co
onnector
OE
EM humidifie
er connectorr componen
nts
MCAC-PDSM
M-2013-04
Midea

Ind
door schema
atic diagram
m

Ou
utdoor fan frrequency conversion
Button
n
Mame
Func
ctions
1, For shiftin
ng to system monitoring
m
sta
atus.
MON/ESC
Monittoring/ESC
2, Back to th
he previous menu.
m
3, Clear the
e alarm when the
t inverter wa
as under alarm
m state.
ENTER
Data//Confirm
1, Enter to tthe menu.
2, Confirm tto amend the data.
d
1, Under qu
uick monitoring
g mode, shift to
t the monitoreed parameter.
>>
Shiftin
ng
2, Under da
ata amending, shift to amend position.
3, When am
mend the functtion code, incrrease as 10 unnits. (Only valiid for P0
function)
Up
Add the fun ction code or data.
63
3
M
MCAC-PDSM
M-2013-01
Accord to th
he function cod
de to carry out one of the foollowing functions:
DIR/JOG
Directtion/Jog
1, Change tthe operating direction
d
of inv
verter.
2, Operate tthe inverter to
o under the jog
g status, looseen the key then
n jog will
stop.
RUN
Run
Under keyp ad control sta
ate, this button will operate tthe inverter.
Down
n
Reduce fun ction code or data.
1, When the
e inverter unde
er normal operation, stop thhe inverter ope
eration.
STOP/RES
SET
Stop/Reset
2, When the
e inverter unde
er error status
s, reset the errror.
3, According
g to the functio
on code to carry out emergeency stop func
ctiom.
(Equal to ou
uter error input.)
Lamp name
Statuss
On
RUN
DIR
LOCAL
TRIP
Flash
h
Instructions
s
The inverrter is under o perating or jog
g status.
The inverrter is slowing down to stop.
Off
The inverrter is under sttop status.
On
The inverrter is under in
nversion status
s.
Flash
h
The inverrter is under co
orotation-inversion transition.
Off
The inverrter is under co
orotation statu
us.
On
Operation
n panel contro
ol status. (Loca
al control)
Off
Terminals
s or serial com
mmunication port
p control sta
atus.
On
Slightly error alarm. (O
Over-current, over pressure.))
Off
The inverrter output currrent and bus voltage
v
norma
ally.
4.2 Main c
control fun
nction










64
Ad
djust the civil use or indu
ustrial appliccation enviro
onment temp
perature andd humidity: Temperature
T
e
control, hHumidity control.
Co
ompressor control
c
functiiom: Compre
essor was as
a simple on and off loadd management.
Tim
me setting fu
unction: Minimum runnin
ng time, Min
nimum closin
ng time, in thhe same compressor
op
perate the minimal interv
val time and operate pow
wer control the
t shortestt delay time.
Co
ompressor alarm
a
functio
om: High pre
essure load alarm, low pressure
p
alaarm compres
ssiom
overload alarm
m, General alarm.
a
Co
ontrol one orr two electric
c heating eq
quipments, at
a most to three electric heating pow
wer energy
levvels.
Th
he bulit-in ele
ectrode type
e humidifying
g equipment.
Eq
quipment ma
anual contro
ol function: E
Equipment ca
an be manually controlleed, and not affect by the
e
tim
ming and sen
nsor values. Under man
nual control state,
s
it only
y responds thhe safety alarm. Manua
al
control only is effective un
nder power o
off. Under manual
m
control, it can nott be started..
Temperature control
c
of airr-return port..
Ala
arm manage
ement, Alarm
m record fun
nction.
Po
ower-off mem
mory: Sudde
enly power o
off, the syste
em has a me
emory functiion, the systtem
automatically recover the operation sttate before power-off.
p
MCAC-PDSM
M-2013-04
Midea
5. Opera
ation
5.1 Tempe
erature/hu
umidity set point se
etting func
ction
Press S
Set in menu, directly enter
e
the usser without password, and can chhange temp
perature and
d
humiditty setting po
oint (S1).
5.2 Query
y function for key co
omponentts operatin
ng status
Press tthe Statu bu
utton, directtly enter witthout passw
word. Enter to
t the interfaace, use Up
p and Down
n
buttonss to turn ove
er pages for query. Conte
ents can be checked as
s following:
65
5
Note:
Interface
es of Ig, Ih, Ii and
a Ij display
y the humidiffier operating
g status.
66
M CAC-PDSM
M-2013-01
MCAC-PDSM
M-2013-04
Midea
5.3 Setting function
n of using paramete
ers

Pre
ess the Prg button in menu,
m
it need
d password to
t enter:
Note:
Use
er password is 0002.

Pre
ess enter button
b
to entter the temp
perature and
d humidity set
s point for parameters
s setting and
d
use Up and Down to adju
ust the param
meters settin
ng:
67
7
M
MCAC-PDSM
M-2013-01
Notes:
Intterface P1 to set the temperature settin
ng range.
Intterface P2, P3
3 and P4 to set the deviatiion and dead
d zone.
Intterface P5 forr some special functions a
activation.
Intterface P8, P9
9 to set temperature and h
humidity alarrm.
Intterface from Pb
P to Pj for alarm
a
selectio
on.
5.4 Mainte
enance ma
anagemen
nt
Press the M
Maintenance
e button, and
d enter the ffollowing interface.
 Ch
heck the softtware versio
on and syste
em information:
68

Op
perating time
e of hardware devices:

Ch
heck the histtory alarm re
ecords and cchange device operating time:
It must throug
gh interface
e A5 enter tto A6. After enter into the interfaace, it can directly
d
from
m
interface A4 to
o A6.
MCAC-PDSM
M-2013-04
Midea
Notes:
Ple
ease contact manufacture
e for mainten ance passwo
ord.

Ke
eep pressing
g Down buttton, the disp
play screen will pop up Type in maiintenance password. Byy
Up
p button to type in pas
ssword, and
d then do th
he calibratio
on setting off relative pa
arameters in
n
sysstem.
Pro
obe calibration:

Ch
hange the maintenance
m
password:
5.5 Clock managem
ment
Press Clock butto
on, and enter to the ffollowing interface, and
d change tthe system time of the
e
controlller:
69
9
M
MCAC-PDSM
M-2013-01
Press D
Down button
n, enter to K1
K interface and type in clock management passsword 002. Press enter
ative functio
to enter K2 interfacce, then can
n use the rela
ons of time zone
z
control . In K2 interrface there
only the
e corresponding control function se
elected Yes then
t
can do the follow uup detailed setting.
s
If it is n
not need the unit to be operated
o
in ssome periods of a day, and
a want to close the un
nit to save
energy,, then it can set (interfac
ce K3, K4) tto carry out timer
t
on and
d off the unitt, and it also
o can set 7
days in a week to be
b different time
t
zone fo
or controlling
g (interface K5),
K which ccan realize not
n control byy
manual every day. Interface Ka to change
e the clock password.
70
MCAC-PDSM
M-2013-04
Midea
6. Netwo
ork func
ction inttroductio
on
Manual operator an
nd controlerr can be con
nnected toge
ether by RS4
485 networkk, to make up the LAN,
and rea
alize the datta and inform
mation comm
munication and
a group co
ontrol functioons. The ma
anual
operato
or can only display
d
inforrmation of on
ne controllerr in once.
The ma
anual operattor was used
d in the basiic paramter setting, if on
ne or more m
manual operators be
disconn
nected or brroken down, and then ea
ach controlle
er will keep normal operration, no influence from
m
the manual operato
or.
Group ccontrol netw
work maxima
al connect 3 2 devicesw (terminal), and
a these deevices includ
de
controlllers and manual operato
ors. Each de
evice has th
he only identtified addresss, the addre
ess range is
1~32. A
Address 32 is
i only assig
gned to ghe manual ope
erator, and th
he controllerr address must be set to
o
1, then the main un
nit can only group contro
ol the units with
w the con
ntroller addreess 2~8, and
d the units
with the
e address 9~
~31 will not control by th
he main unitt, and keep their single operation sttate. Units
named from 1 to 31 can accep
pt the contro
ol of the sharre manual operator.
A contrroller can ma
aximal mana
ages 3 manu
ual operatorrs at the sam
me time, butt can not ma
anage two
kinds o
of manual op
perator at the
e same time
e. Three manual operato
ors can updaate the inforrmation of
their co
orresponding
g controllers
s synchronou
usly, and the
e corresponding relationn:
1. Spe
ecial (Pr), on
nly display the output off this controller.
2. Sha
are (Sh), can shift more
e than one co
ontrollers by
y pressing th
he Query buutton.
As the following piccture shown
n, one share manual ope
erator linked
d with three ccontrollers, and only
controlller 1 can update the dis
splay date off the share manual
m
operrator and acccept input command
c
of
manual operator, meanwhile,
m
the
t other two
o controllers
s will continu
ue to updatee the display
y data of the
special manual ope
erator. To prress the Que
ery button off the share manual
m
operrator for circ
culated
shifting
g (U:01>U:02
2>U:03>U:0
01…). When address 2 and
a address
s 3 controlleers have alarrm
informa
ation, their special manu
ual operator will produce
e the alarm information,, and at the same time
also ca
an control the
e share man
nual operato
or and produ
uce alarm information.
71
1
M
MCAC-PDSM
M-2013-01
6.1 Group
p control network
n
se
etting
According to the prrevious pictu
ure, an exam
mple of how to set group
p control nettwork will be
e given.

Set the
e manual ope
erator addre
ess of the de
evice 2 to be
e 0.
Power on the contrroller, and wait
w the contrroller finish operation.
o
Press
P
Up, Do
own and en
nter buttons
or 5 seconds
s to enter th e configurattion mode, the manual ooperator display as
at the ssame time fo
follow:
Press e
enter button
n to move the
e cursor to tthe 32 field, and press Up
U key to chhange the manual
operato
or address to
o be 00.
Press e
enter button
n to confirm the
t manual operator address chang
ging.
72
MCAC-PDSM
M-2013-04

Midea
Change
e the controller address of the devicce 2.
Cut off the controlle
er power and the conne
ections betw
ween J11 porrt on the conntroller and other
o
controlllers.
Press U
Up and alarm buttons at
a the same ttime, and po
ower on the controller, uuntil the scre
een display
the follo
owing interfa
ace then sto
op pressing.
The ma
anual operattor will autom
matically shiift to the follo
owing displa
ay, press Up
p button to set
s the
controlller address to be 2, and
d press ente
er for confirm
mation.

Set the
e manual ope
erator addre
ess of the de
evice 2 to be
e 31.
Press U
Up, Down and
a enter bo
ottons at the same time for at least 5 seconds too enter the configuration
c
n
mode, tthe manual operator dis
splay as follo
owing:
Press e
enter to movve the cusorr to the 00 fi eld, and pre
ess Down to
o change thee manual op
perator
addresss to be 31.
Press e
enter to confirm the manual operato
or address changing.
c
73
3

M
MCAC-PDSM
M-2013-01
Configu
ure the corre
esponding re
elation of co
ontroller and the manuall operator.
Press U
Up, Down and
a enter bu
uttons at the same time for at least 5 seconds too enter the configuration
c
n
mode, tthe manual operator dis
splay as follo
owing:
Press e
enter button
n 3 times, the
e screen dissplay as follo
owing.
Press e
enter to ente
er the config
guring page for correspo
onding relation of controoller and ma
anual
operato
or, press Up
p and Down to select the
e manual op
perator addrress and thee correspond
ding relation
of manual operatorr and controller. Use entter button to
o confirm the
e setting andd move the cursor, the
manual operator diisplay as following.
Notes:
P: 02 means that controller address is 02
2.
Trm
m1: 31 Pr me
eans that man
nual operatorr 1 address is
s 31, the corre
esponding reelation of man
nual
operater 1 and contolller 02 is spec
cial.
Trm
m2: 32 Sh me
eans manual operator 2 ad
ddress is 32, the correspo
onding relatio
on of manual
operatorr 2 and contro
oller 02 is sha
are.
Trm
m3: None --- means opera
ator 3 address
s is empty.
So the controller with
w the addre
ess 02, it is special man
nual operato
or address iss 31, and the
e share
manual operator ad
ddress is 32
2.
etting, presss enter to mo
ove the curssor to the No
o field, and change
c
to bbe Yes by Do
own button,
After se
74
MCAC-PDSM
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

Midea
and the
en press entter for confirrmation, the n finish grou
up control ne
etwork confiiguration of one device.
Set the
e manual ope
erator and controller
c
ad dresses of device
d
3 and
d set their coorresponding relation.
Repeatt same stepss for device 3, and set tthe manual operator
o
and
d controller aaddresses. Set the
corresp
ponding rela
ation as the following
f
dissplay:
Operations of the manual
m
operrator (Addre
ess No.32) which
w
connec
cted with deevice 1, conffigure the
grop co
ontrol functio
on.
Press P
Program an
nd menu butttons togethe
er to enter th
he factory pa
assword pagge. Press en
nter to move
e
the curssor to the 00
000 field, an
nd type in pa
assword by Up
U button. Press
P
enter to confirm entering
e
factory configuratio
on.
Notes:
Co
ontact manufa
acture to get the factory p
password dettails.
Press e
enter to ente
er the interfa
ace of config
guration management.
Find the
e Co page by
b pressing Down butto
on, and pres
ss enter to confirm the ssetting. Move
e the cursorr,
select tthe relative parameters
p
by Down bu
utton.
75
5
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MCAC-PDSM
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Press m
menu to exitt the interfac
ce of configu
uration management, an
nd press Do
own to move
e the cursor
to the in
nterface of parameter
p
management
m
t, then press
s enter to co
onfirm enterring, and the
en find
interfacce Gm by Do
own button.
Then th
he units ope
erate after se
etting, there are several functions:
1. Con
nflict manag
gement
Manage by the
e main unit, and
a carry ou
ut cooling, heating, huidification andd dihumidific
cation, avoid
d
to ccompeted op
perations.
2. Main unit and backup
b
unit shifting
Wh
hen there are
e errors in th
he units of th
he group, the backup un
nits will autoomatically op
perate, to
incrrease the re
eliability of th
he aire cond itioning systtem.
3. Rottation type
Auttomatic rotattion: The current rotatio n time set to
o be 0 hour, is used to teest the rotatiion condition
n,
eve
ery 5 minuts will carry ou
ut one rotati on. The current rotation
n time set to be none 0 hour,
h
the
carrry out resultt is the same
e as running
g hours.
Run
nning hours: Ratation as hours (000
0~240h), ev
very 24 hours will carry oout one rotation, under
thiss rotation typ
pe ,it can not set the rota
ation time to
o be 0.
Tim
mezones: Ro
otation as tim
me zones, ca
arry out on rotation
r
as the setting hoour 22:00 off every
We
ednesday, an
nd set other two rotation
n type the G0
G interface will
w be displaayed, and se
elect other
two
o rotation typ
pes the G0 interface willl not be disp
played.
4. Loa
ad adjustme
ent
The
e absolute value
v
of diffe
erence betwe
een ambientt temperaturre and settinng temperature is higher
than 8°C, then it will operate standby a
after 3 minutes.
The
e absolute value
v
of diffe
erence betwe
een ambientt temperaturre and settinng temperature is lower
than 4°C, and then
t
it will close standbyy.
76
MCAC-PDSM
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Midea

Wire fig
gure of contrroller in grou
up control ne
etwork.
3-core shielding wire (large or equal to 0.7
75mm2) is us
sed to conne
ect the contrroller and th
he J11 port,
which h
has polarity. It needs to correctly co
onnect Rx-/T
Tx-, Rx+/Tx+
+ and GND. T
The maximu
um distance
e
of the ccontroller wirres should be
b 500 mete
ers.

Functio
onal verificattion for group control ne
etwork.
 Be
efore verifyin
ng the group
p control netw
work funcito
on, it needs to
t confirm aall the networking units
are
e noumal wh
hen it is operating by sin
ngle (without shutting do
own for erroor).
 Aftter configure
e all the addresses of m
manual opera
ator and con
ntroller in thee group conttrol network
and their corre
esponding re
elations, succcessively operate main
n power, conntroller powe
er and indoo
or
pow
wer for everry units.

Aftter the contrroller operation, press D
Down, Up an
nd enter key
ys at the sam
me time for at least 10
secconds, then can check the
t online sttatus of connect devices
s in the grouup controllerr network.

On
n the manua
al operator with
w address No. 32, pres
ss Query to check the U
U:01 on the M0 interface
e
wh
hether shift to differents units as : U
U:01>U:02>U
U:03>U:01…
….

Pre
ess on/off to
o operate all the units in
n the network, to check whether
w
the units are un
nder standbyy
sta
atus. Press on/off
o
to clo
ose one of th
he operated units to che
eck the undeer standby units
u
whether
it w
will automatically turn to ben on stattus. And the
en re-operate
e the unit jusst closed to check
wh
hether the sttandby units will back to
o standby sta
atus.
En
nter the Gn interface, ch
hoose the rottation type to
t Automatiicn Rotation
n, the standby quantity
to be 1, and ro
otation time set to be 0. Check whetther the unitts are underr standby sta
atus, and
hether carry out a rotatio
on every 5 m
minutes.
wh



Pre
ess set to enter tempera
ature/humid
dity setting in
nterface S1, set the settiing temperature to lowe
er
tha
an the ambie
ent temperature 10°C, tthen after 3 minutes to check
c
the unnder standby
y units
wh
hether will au
utomatically turn to be o
on status. An
nd then set the
t setting teemperature to be the
same as the ambient temp
perature to ccheck wheth
her the stand
dby units wil l back to sta
andby statuss.
Se
et the parameters of Gn interface an
nd S1 interfa
ace to be the
e values reqquired by the
e actual
operations.
77
7

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MCAC-PDSM
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Cancel group contrrol network.
 Clo
ose the unit.. Switch off the
t controlle
er power and
d the networrk connectioons of contro
oller J11 porrt
and other conttrollers.
 Ch
hange the co
orresponding
g manual op
perator addrress of devic
ce 2 and devvice to be 32
2, controller
addresses to be
b 01, and configure
c
the
eir corresponding relatio
on as followiing:

hange device
e 1 to C0 intterface and Gm interfac
ce as followin
ng:
Ch
6.2 The etthernet co
ommunica
ation card introduction

TCP/IP
P communica
ation card (E
Ethernet com
mmuniction card)



78
This card can provide netw
work connecctor, and also can view the
t data throough the Inte
ernet Eplore
er.
The air conditioner is direc
ctly connectted with the computer by
y the ethernnet communication card..
The network diagram
d
of th
heTCP/IP co
ommunicatio
on card (Ethernet comm
munication ca
ard) by
SN
NMP protoco
ol is shown as
a following picture, and
d the connec
cting quantitty of air cond
ditioners are
e
no restriction.
Insstallation of the
t ethernett communica
ation
1. The board of TCP/IP card
c
is insta lled in the pCO* controller.
2. Switch off the main po
ower. Removve the coverr of card from
m the pCO* by a screwd
driver.
MCAC-PDSM
M-2013-04
Midea
3. Insert the TCP/IP
T
card
d in th corressponding plu
ug-in connec
ctor, makingg sure it is su
ully inserted
d
and in con
ntact with the
e two suppo rts located on
o the case of the pCO**. This opera
ation may be
e
difficult due to the limitted space, cconsequently, it is recom
mmended too insert the board
b
at an
angle and then turn it until aligning
g the conne
ectors.
4. Clos the co
over again, using the co
over supplied with the board of TCP
P/IP card, lin
ning up the
connector on the seria
al board with
h the openin
ng in the cov
ver.
5. Stick one or
o both label, so that the
e MAC addrress can be read withouut needing to
o open the
electrical panel.
p
6. For the connection to the ethernett network, use an S/FTP
P cable, cateegory 5e or higher.

RS485 communica
ation card


RS
S485 commu
unication card is as sho
own in follow
wing picture. The RS4855 card also can
c provide
network conne
ector, and also can view
w the data through the In
nternet Exploorer by conn
necting
R2
232/R485 co
onverter.
The network diagram
d
of RS485
R
comm
munication card
c
is as shown in follow
wing picture
e. It can
connect maxim
mum 200 sets air condittioners, and the longest R485 conneecting wire which
w
use
79
9
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MCAC-PDSM
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shielding cable
e is 1000m.

Insstallation of RS485 card
d
1. Remove th
he serial carrd placemen
nt cover with
h a screwdriv
ve.
2. Remove th
he pre-punc
ctured plasticc, the hole which
w
corres
sponds to thhe tree-pole terminal ou
ut
will be found.
3. Insert the optional carrd into the ccorrespondin
ng connecto
or, taking carre that the card
c
is firmlyy
placed on bothe plastiic supports o
on the pCO case.
4. Close the cover using the screwd river making
g the outside
e card terminnal fits with the punched
d
hole made
e on the cover.
5. The conne
ection with the RS485 network is carried outt by means of the plug
g-in termina
al
80
MCAC-PDSM-2013-04
connector on the card.
6. There is a table of Pin-wiring of the connector stamped on the card.
Pin
Significato meaning
1
GND
2
RX+/TX+
3
RX-/TX-
7. Maintenance
7.1 Electrical maintenance
According to the following items to check appearance of the electrical connections and do the relative
handlings. Before fastening any assembly connections and circuit connections, it must ensure that
the power supply of the control element has been closed.
 The electrical insulation test: find out the unqualified contacts and handle them. During the rest
process, pay attention to disconnect the control part of the safety or air switch, to avoid high
voltage damaging the control panel.
 Static detect the suction port of each contactor is flexible or not, and whether there is card
resistance.
 Use a hairbrush or dry compressed air to clean dust for the electrical and control components.
 Check the suction port of the contactor whether has arc discharge and burn mark phenomenon.
When it is serious change the corresponding contactor.
 Tighten each electrical connecting terminal.
 Check whether the plug-in quick connectors whether contact well, if there is any loose condition
it should be replace the terminal.
7.2 Control maintenance
According to the following items to do the appearance check, simple function test of the electrical
connections and do the relative handlings. Before fastening any assembly connections and circuit
connections, it must ensure that the power supply of the control element has been closed.
 Check the appearance of the power transformer and isolated transformer, and detect the output
voltage of indoor unit and outdoor unit.
 Detect the surfaces of control connector panel, display panel, sensor panel and safety panel
whether there has obvious ageing.
 Clean the dust, dirt on the electric control elements and control panel by hairbrush with the
electronic cleaning agent.
 Check and tighten control each input and output plug-in connector of the control connector panel,
including the connection of display panel and control connector panel as well as the connection
of the control connector panel and temperature/humidity sensor panel.
 Check the connection of the wiring terminals (J10, 01/45, 01/47, 01/48, etc.) and controller
connector panel.
81




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MCAC-PDSM
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Ch
heck the outtput connecttion between
n the contro
ol connector panel to eaach contacto
or, liquid pipe
e
ele
ectromagnettic valve, an
nd the inpu t connection
n between the control connector panel to fan
n
overload prote
ection devic
ce, high/low pressure switch,
s
heating thermal protection switch, filte
er
screen cloggin
ng switch an
nd air flow sswitch. It sh
hould be foc
cusing on chhecking the terminals of
o
hig
gh/low presssure switch and electrromagnetic valve, if the
ere appear loose, poo
or contacting
g
conditions the
en it should be replace
ed immediately. Replac
ce the contrrol fuse (orr air switch)),
control panel, electric com
mponents wh
hich have ex
xisting problems.
Ch
heck the con
ntrol wiring between the
e indoor unit and condenser or thee specificatiion of powe
er
wirre and the ageing
a
situattion, when n
necessary, re
eplace the wires.
w
Usse temperatu
ure and hum
midity measu
uring instrum
ment with higher measuuring precision to checkk,
calibrate the reading of the tempera
ature and humidity
h
sensor. Duringg the calibrration of the
e
humidity senso
or, pay atten
ntion to sele
ect the humid
dity control way
w to be reelative humid
dity control.
Ch
heck the exte
ernal sensors:
1. Fireworks detector (If installed)
Fireworks detector is located on tthe wind pow
wer base pa
anel of the u pper air out unit and the
e
top of the lower air out
o unit. It ccontinually does
d
the ana
alysis judgm
ment through
h collect the
e
return air sample,
s
and
d it does not need to adjust.
2. Water leakkage detecting sensor
Water leakkage detecting sensor ccontains a pa
air of dry contact switchh, and when a pair probe
e
of the swittch detect th
he water (or other conductive liquid), this switchh is closed immediatelyy.
The senso
or should be placed far a
away from th
he wet tray or
o floor dewaatering places, and from
m
the unit ab
bout 2 to 2.5
5 meters. It sshall not dire
ectly install under
u
the unnit.
7.3 Filter s
screen ma
aintenance
82

To ensure the
e reliable operation,
o
th
he filter scrreen must be
b monthly check and
d change ass
req
quirement. The
T
position of filter sscreen clogging switch and air floow switch. The displayy
positions in the
e following figure
f
are forr reference only,
o
due to the differentt model, and
d the specificc
loccations may be differentt.

Sh
hut off the po
ower before changing th
he filter scree
en. If change
e the same ttype of filter screen, it do
o
not need to re
eset the filterr screen clo
ogging switch
h, otherwise
e, it needs too calibrate the setting of
o
MCAC-PDSM-2013-04

the filter screen clogging switch. The filter screen clogging switch is located in the electric control
box, and collect the large air pressure and filtered air pressure through the white soft hose, and
the filter screen clogging switch to compare the two pressure difference to judge the output.
When installs different type of filter screen, in order to accurately find emergency alarm, it must
install all the panel of the device in places and keep closed. Under the fan is operating, as the
anti-clockwise direction to rotate the setting knob of the filter screen clogging switch, to make the
switch contact the filter alarm, and then as clockwise direction to rotate the 100Pa deviation
pressure, and then install the plastic protective cover of the filter screen clogging switch in place.
Notes:
1.
Setting point shall be appropriately, and can not deviate too much, or it will due to dirty filter screen
and cannot trigger the alarm, and then cause the small system air volume and lead to abnormal
operation of the system.
2.
To change different type of the filter screen and adjust the setting, it should be confirmed by
manufacture.
7.4 Indoor fan components maintenance
Periodically check the fan components, including: belt, motor frame, fan bearing and impeller. The
motor and installation panel are integration design and use bolts to fix on the installation panel. After
a period of using, it should be check whether the bolts are loosened. If they are loosened, they should
be promptly tightened.
 Fan bearing and impeller
It should be regularly check whether the fan and fan spindle are installed firmly or not. Turn the
fan impeller to make sure it cannot clash the scroll shell. Use the bearing of this component is
permanently sealed and self-help lubricated. During regulating the belt, it should be examined
for the attrition phenomenon. Turn the belt pulley to check the rotating condition of the fan
spindle. If it was found to have any big movement, then needs to replace the bearing.
 Belt
Use the belt tension meter to detect the tightness of the belt. Or in the connection center of motor
wheel and fan wheel to tight the belt, it should has 1/2’~1’ displacement. If the belt is in damage
or deformation status, use the same type of belt for replacement.
 Motor
When the motor appears abnormal sound, burned etc, factors to make invalidation, needs to be
changed, for upper air supply unit. It should pay special attention for safety. It must use special
tools to hold the motor and then dismantle fixed the bolt of motor base.
7.5 Humidifier maintenance
During the normal operation of the humidifier, articles such as mineral salt will gradually deposit and
form scales on the internal wall of the humidifier tank. These scales must be regularly cleared, which
can guarantee the efficient operation of humidifier. Because of different water qualities, the cleaning
time should be based on the local specific situations. It is suggested to check monthly.
 Please do not use cleaning agent and solvents to clean the plastic components.
 Use materials which contain 20% acetic acid to remove the scales and residue in the water.
83

Insstruction of the
t steam hu
umidifier com
mponent pa
arts which ne
eed to mainttain.
Nam
me
Item
m

84
M
MCAC-PDSM
M-2013-01
1
Support frame
2
Water supply tank + Conductiviity meter
3
Water in
nlet flexible p
pipe of humidification ta
ank
4
Water in
nlet solenoid
d valve (24V
V AC)
5
Gasket
6
Straight--water drain
nage connec
ctor
7
Humidifiication locki ng belt
8
Overflow
w pipe
9
Water in
nlet flexible p
pipe of wate
er supply tan
nk
10
Water supply conne
ector (Conne
ect to humidification tannk.)
11
90o angle water dra
ainage bend
12
Water drainage sole
enoid valve (24V AC)
Ma
aintenance methods
m
1. Humidifica
ation tank may
m
be hot, so firstly cool
c
the humidification tank or us
se protection
n
gloves beffore operatio
on.
2. After broke
e off the con
nnection of tthe cable an
nd pipes, dismantling thee electromag
gnetic valve
e,
and checkk the status of the inlet filter. Check
k whether it is necessarry to use wa
ater and sofft
brush for cleaning
c
the filter.
3. Check wh
hether there
e are solid adhesives in the hum
midification tank, and remove the
e
impurities. Check the seal O-shap
pe ring whetther has bee
en damagedd or broken, if it has anyy
damage or broken, replace it.
4. Disconnecct the power supply, and
d take down all the senso
ors, then unsscrew the bo
olt and valve
e
body, to re
emove all the
e impurities and clean itt.
5. Check the water supply tank whetther has any
y obstacles or
o solid parti cles. Check
k whether the
e
conductivitty probe is clean
c
or not,, and remove all the imp
purities and clean it.
6. Check the
ese pipelines whether i t was clearred and no impurities. If it has any impuritiess,
MCAC-PDSM
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

Midea
remove alll the impurities and rinse
e off.
Dissassembling
g the humidification tankk
1. Press the Manual dra
ainage butto
on to empty the water in humidificattion tank.
witch off the p
power supplle for safety operation. O
Open and ta
ake down the
e
2. Close the unit, and sw
cap.
3. Take down
n the steam pipe from to
op of the hum
midification tank.
4. Break off the
t electrical wirings fro m the top off the humidiffication tankk.
5. Loosen the
e fastening devices
d
of h
humidificatio
on tank, then
n lift it and taake it down.
6. According to the reve
erse order o
of above ste
eps to install a new hu midification tank on the
e
humidification.
Cle
ean the hum
midification ta
ank
1. Take down
n the humidiification tankk, and use cross-screwd
c
driver to scrrew open the
e connecting
g
screws of the clamp in
n the middle
e of humidific
cation tank.
2. Take off th
he fixed clam
mp, and verrtically take out the hum
midification ttank core bo
ody from the
e
humidification tank.
3. Place the humidification tank corre body into acetum witth 20% denssity, waiting for scale to
o
loose, and
d wash away
y all the scalles carefully
y by a soft ha
airbrush.
4. After clean
ning, install the
t humidificcation tank core
c
back to
o the humidi fication tank
k, and fasten
n
the conneccting clamp..
7.6 Electrical heatin
ng compo
onents
Check the rust sittuation of electrical
e
hea
ating compo
onents, and
d use iron bbrush for de-rusting, or
o
accordiing to the situation fo
or replacem
ment. The in
nternal circu
uit of the eelectric heating interna
al
combin
nation has ta
andem conn
nect two tem
mperature sw
witches. Whe
en there is hheating dem
mand but hass
no heatting effect, then
t
it should check whe
ether the tem
mperature switches havve been rese
et.
7.7 Refrig
geration sy
ystem
It mustt monthly check the co
omponents of the refrig
geration sys
stem, to vieew whether the system
m
function
n is norma
al and has any sign o
of wear or not. For it was oftenn accompanied by the
e
corresp
ponding erro
ors before the compon ents fail or devices damage, so reegular inspe
ection is the
e
main m
measure to prevent
p
mostt system faillures. Refrig
gerant pipe must
m
have thhe suitable bracket, and
d
should not rely on the ceiling, floor and fiixed frame vibration
v
pla
ace. Check tthe refrigera
ants pipeline
e
every ssix months, make
m
sure whether
w
theyy were worn or the existed fixing struucture has loosen or no
ot.
Each ssystem is eq
quipped with a liquid ssight glass for
f observin
ng liquid reffrigerant flow
w and wate
er
85
5
MCAC-PDSM-2013-01
situation of the system. When the water content of system is more than the standard, the liquid sight
glass basic color will change from green to yellow. When the refrigeration system has malfunction,
judge the error according to some operating parameters of the system.
 When the suction pressure drops to below the set value of low pressure switch, it could lead to
the compressor stops. On the other aspect, high suction pressure also can be reduced to cool
the compressor motor, which may cause compressor damage.
 Discharge pressure may be increased or decreased for the load conditions or the efficiency of
the condenser. When the discharge pressure reaches the setting value of the low pressure
switch, the high voltage switch action will make the compressor stop.
 Thermal expansion valve can adjust the suction overheat degree. The suction overheat degree
has great influence for the using life of compressor, if the compressor operates on the situations
of too small or no suction overheat degree for long time, it may be directly led to compressor
produced liquid strike, which will crush the scroll compressor. Follow the below operations to
confirm the suction overheat degree of system:
1. Measure the suction wall temperature in the thermal expansion valve temperature sensing
position.
2. Take the compressor suction pressure sample from the needle valve of suction pipe.
3. Estimate the pressure difference between the temperature sensing position and the needle
valve of suction pipe.
4. The sum total of above two pressure plus one local standard atmospheric pressure value,
then find out the corresponding saturated temperature of the saturation pressure.
5. The suction overheat degree is the difference of the suction temperature and this saturated
temperature.
7.8 Compressor monitoring and replacement
This precision air conditioning system uses high efficient scroll compressor, which has high reliability.
If the project construction strictly accord with the correct program operations, then the probability of
failure which appears in operation process is very small.
 If the problems which may result in compressor error can be early detected and corrected, then
most of the compressor errors can be avoided. So it is suggested that customer should regularly
contact the service of manufacture to do compressor operation state test, and do the monitoring
records.
During the compressor monitoring, check whether all electrical components of compressor are
running normally.
1. Check whether the corresponding air switches and contactor of the compressor are sensitive
and normal.
2. Check whether the high and low pressure switches are sensitive and normal.
3. Check whether the upper discharge temperature switch of the compressor has been fixed
reliably and done the thermal insulation.
4. Check whether the compressor wiring terminals resistance value is normal and the
grounding insulation is normal.
 If for neglecting the inspection or other reasons to cause the compressor error, then before
changing the compressor it must be carefully do the fault analysis, the common errors mainly to
be the following two aspect:
86
MCAC-PDSM-2013-04

1. Mechanical error
The mechanical error of compressor is mostly because that during the installation process it
is not strictly accorded to the operation guidelines, and the system refrigerant leakage and
improper trial run in the process of the construction and operation, and then cause the
compressor return liquid operation in long term.
Under such cases can lead to the compressor internal temperature over high, and
mechanical error including in the scroll badly worn, scroll jammed, and so on. For external
performance, the motor inside compressor resistance may be normal, but large noise will be
produced after the compressor start. When the error compressor starts, the pressure
difference between compressor suction and discharge ports is zero. If it is confirmed that
there are mechanical errors, then it must to replace the compressor.
2. Electrical error
The compressor electrical error mainly is that the compressor was burned and the wiring
terminals are blew out. Under this case, after power on the compressor, compressor still is
without any response. At this time, it should cut off the electricity, and then open the
compressor wiring box for visual inspection or using a multimeter to check the compressor
resistance. If there is any electrical error, it is necessary to change the compressor.
When compressor happens to completed burned, replace compressor and it also should be
replace drier-filter, and check the expansion valve. If there is any error, it also should be replaced.
Before the replacement, clean the system is necessary by right method. When changing the
compressor the skin must be avoided to directly contact with the refrigerant or lubricating oil,
otherwise it will cause severe frostbiting the skin, and it must wear protective gloves for handling
the contaminated components. After replace the compressor it must do serious analysis and
exclusion of the compressor error reasons, otherwise it may lead the new compressor to be
burned again.
1. Cut off the power supply.
2. Separate insert the suction pipe needle valve and discharge needle valve on the low
pressure and high pressure connectors of the pressure gauge, and to release the refrigerant.
3. Disconnect the electrical connection of the compressor.
4. Loosen the threading connectors in the suction pipe and discharge pipe of the compressor.
5. Remove the error compressor.
6. If the compressor was completely burned, it should clean the refrigeration system pipelines,
and replace the drier-filter and liquid sight glass.
7. Install the new compressor in place, and connect the pipeline connectors and electrical
circuit well.
8. According to the requirements of the debugging to vacuum the system and add refrigerant.
9. As the normal trial run to power on the system, check whether the system operation
parameters are normal. Through the liquid sight glass to observe the refrigerant status, and
combining with the system pressure and temperature parameters to confirm the adding
amount of refrigerant, until the system runs normally.
7.9 Outdoor fan maintenance
Check whether the fan operates normally, noisily, vibrates or blocks the bearing, etc.
87
MCAC-PDSM-2013-01
8. Trouble shooting
When the system is suddenly having a demand, but there is a failure or invalidation which led to
non-workable, and then it cannot meet environmental needs. So it is necessary to periodically do the
functional test for the system components. Controller provides field manual opening and closing
function for all parts, and use for self-detecting the functional components’ states of the system.
Detailed operations can be checked by system self-diagnostic function.
During the device operation, the internal unit may have a deadly high voltage. It only allow
specialized technical person to do the unit maintenance operation, and must be especially careful
during the troubleshooting with electricity.
 Common faults and handling methods of indoor fan
Symptom
Probable reason
Check items or handling methods
No main power supply
Check the voltage between A, B, C.
Overload, air switch is broken off
Manual reset, check the average current value.
Check whether has 24V AC voltage between 28
Contactor cannot contact together
contactor has error, change it.
Fan no
working
and 03. (Wire numbers) If it has, then the
Check whether has 24V AC voltage between 28
Control panel error
and 03. If not, the control panel has error.
Check whether the belt has loosened or fan motor
Air flow lost switch alarm (activate)
has error, if not, then check whether the air flow
collecting plastic pip has abnormal position.
Fan error.

Replace it.
Common faults and handling methods of dehumidification system
Symptom
Probable reason
System does not require carrying out dehumidification.
Check the control system status.
Contactor of compressor cannot contact together.
Refers
to
refrigerant
system
handling methods.
No
Compressor does not operate, the air switch broke off.
Check the air switch, contacting
points, check the air switch
dehumidification
voltage.
effect
1, Check whether has 24V
voltage between wire 33 and wire
Dehumidification solenoid valve error
03.
2, Check whether reliable installs
the wires and valves.
88
MCAC-PDSM-2013-04

Common faults and handling methods of humidification system
Symptom
Probable reason
No water filling in the humidification tank
or low filling water pressure.
No
humidification
effect
No humidification requirement.
No 24V AC input at controlling sire side of
Check the water inlet solenoid valve is open.
Check manual operator.
Controller error.
Wiring from controller to the humidification
contactor controlling wire port is loose.
Common faults and handling methods of heating system
Symptom
Probable reason
Heating system does not operates,
contactor do not contact together.
The contactor contacted together,
but no heating effect.

Check the water source.
Check whether the water inlet pipe has blocked.
humidification contactor.

No heating requirement.
Check the controller status.
Heating temperature controller is
1.
Wait for the controller reset.
broken off and not reset.
2.
Change a new controller.
Turn off the power, check the
Heater error.
heating pipe and wire.
Common faults and handling methods of refrigeration system
Symptom
Probable reason
Power off. (Off the unit.)
Check the main power switch, fuse and
connecting wires.
Power overload and the air switch broke off.
Manual reset, check the current and air switch.
Compressor
Electrical circuit connection is loose.
Fasten the connection.
cannot run.
Compressor wire circuit has burnt.
Check the compressor terminal.
The built-in protector of compressor has
broken off.
Symptom
cannot run.
open. If open, cool down the protector, then
automatically reset.
Probable reason
Power off. (Off the unit.)
Compressor
Check whether the compressor wire circuit is
Check the main power switch, fuse and
connecting wires.
Power overload and the air switch broke off.
Manual reset, check the current and air switch.
Electrical circuit connection is loose.
Compressor wire circuit has burnt.
Check the compressor terminal.
The built-in protector of compressor has
broken off.
Check whether the compressor wire circuit is
open. If open, cool down the protector, then
automatically reset.
The contactor cannot contact together. No
Check the manual operator parameters setting
24V voltage input for the compressor control
correct or not. Check whether the controller is
wires. Or not reach the operating conditions
error, or wiring from controller to compressor
of compressor.
port is loose.
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MCAC-PDSM-2013-01
Symptom
Probable reason
Air suction and
Reverse the compressor or inner air
When the compressor was reversed, change
exhausting pressure
mixed up.
any two L wires. Inner air mixed up, change
have no difference
the compressor, Check the leakage and
after operation.
maintain, and add refrigerant, change the
drier-filter.
Symptom
Probable reason
High air exhausting
Refrigerant leakage.
temperature
Check whether the leakage and maintain, and
add refrigerant.
Symptom
Probable reason
Condenser has been blocked.
Clean the condenser.
1, Check the wiring was correct or not.
High air exhausting
pressure
2, Check whether it has 3~10V DC between
Condenser fan cannot run.
wire 22 and wire 05. If has, the outdoor
inverter is error. And if no, check the indoor
unit controller.
Too much refrigerant adding amount.
Symptom
Probable reason
Lack of refrigerant in system.
Low air
Check the leakage and maintain, add
refrigerant.
Air filter too dirty
Change the air filter.
Drier-filter is blocked.
Change the drier-filter.
Non-correct overheat adjustment
Strictly accord to the adjustment steps to
suction
adjust the thermal expansion valve.
pressure or
1, Check the temperature sensor and the
return liquid.
Expansion valve error.
balance pipe whether have leakage.
2, Check the expansion valve whether has
serious frosting.
Condensed pressure too low
Check the fan operates normally or not.
Belt creep
Check the belt and adjust it.
Symptom
Large
Probable reason
Return liquid.
compressor
Lubricating oil lost and cause bearing
noise.
damaged.
Compressor or pipe line is loose.

90
Refers to Low air suction pressure or return
liquid.
Add the lubricating oil.
Common faults and handling methods of outdoor fan system
Both error and alarm are the abnormal working states of inverter. But there are different. Inverter
will self-check during operation. If there is error, the inverter will display error code, and cut off
MCAC-PDSM-2013-04
the inverter output to stop the motor and make it stay free running condition. If there is alarm, the
inverter will display alarm code, and will not cut off the inverter output during alarm state, the
motor still be controlled by the inverter.
Many methods of inverter error reset: Press the Reset button in keypad of inverter, reset function
of terminals, or if necessary, power off the main power for a while then can reset the error. If error
has been solved, the inverter will recover to normal operation. If error still not has been solved,
the inverter will trip out again.
The alarm reset of inverter only effect by operate the Esc button in keypad of inverter.
When no display after power on:
1. Use the multimeter to check whether input power of inverter is same as the rated voltage.
2. Check whether the Charge lamp whether lights up.
3. If the above are normal, then maybe the power switch has error.
When the inverter does not run after the motor operation:
Cut off the connecting wire between inverter and motor, operate the inverter in 50Hz, and use
multimeter to check whether there is equivalent AC between U, V and W. Use simulate voltage
meter for measurement (the range is AC500V). If there is not equivalent voltage or no voltage,
then the inverter had been damaged.
Notes:
Between U, V and W are high –frequency impulse.
Code
Type
Error reason
Speed up and down times too
Over current error, current is
E001
higher than 150% of
short.
Solutions
Extend the speed up and down time.
The inverter power is too small
Select a large power inverter.
Voltage is too low.
Check the input voltage.
Speed up and down time is too
short.
Extend the speed up and down time.
The inverter output side is short
circuit.
Check the insulation of motor.
Power module is damaged
Replace the module.
Outer disturb.
Find out disturb and eliminate it.
Speed down time is too short,
regenerated energy too large.
Extend the speed down time.
Voltage is too high.
Load inertia is too large,
regenerated energy too large.
Voltage of power supply is too low.
Voltage is too low.
Maximum current.
E002
E003
E004
Power module error
Bus overvoltage error, the
value is more than 570V.
Bus voltage error, the value
is less than 171V.
Motor load error, the motor
E005
current is higher than
standard inverter current.
Load inertia is too large.
Not correct standard current setting
of motor.
Check the load inertia, adjust torque
lifting capacity.
Reset the standard current of motor.
91
Inverter overheat error, the
E006
temperature is higher than
90°C.
E007
E009
E010
E012
E013
E015
E030
92
Soft start error
Output
with lack of phase
error
Out device error
MCAC-PDSM-2013-01
The inverter power is too small.
Ambient temperature is too high.
Check the ambient temperature.
Ventilation of inverter is not well.
Improve the ventilation environment.
Cooling fan error.
Check the cooling fan work or not.
Temperature detection circuit error.
Replace the detection.
Soft start circuit or contactor is
damage.
Replace soft start.
Current of 3-phase output side is
Check the output connecting wire and
asymmetric
motor insulation.
Out error signal input terminal
activates.
Check the outer error reason.
The stop key is set to be
emergency stop.
Check the stop key.
Current detection circuit
Current detecting components are
error
damaged.
EEprom read and write error
Control panel components of
inverter are damaged.
Change the inverter
Outer disturb.
Outer disturb
CPU disturb error
Error alarm
This is an alarm; the inverter output
will not stop.
Replace the detection.
Press Esc key to exit the alarm status.
MCAC-PDSM
M-2013-04
Midea
9. Acces
ssories
Indoor unitt
Name
Quantity
User’s m
manual of indoor unit
1
Installatio
on
1
frame
for
water
Shape
e
leakage sensor
Switch p
panel compon
nent
Door keyy
1
1
(Place
ed on the dooor plate.)
nit
Outdoor un
Name
Quantity
Shape
e
User’s m
manual of outtdoor unit
1
Bottom ccomponents
4
orizontal insttall
For ho
Screws ccomponents
24
For ho
orizontal insttall
93
3
MCAC-PDSM-2013-01
Annex I: Alarm table
Alarm display
Result
Probable reason
10s after the low pressure switch is
trigged.
10s after the airflow switch from close to
open.
Low pressure compressor 1
Switch off the compressor 1.
Lose of airflow (Serious Alarm) UNIT OFF
Switch off the unit
Main fan overload(Serious Alarm) UNIT OFF
Switch off the unit
Indoor fan motor protector acts.
EL heater1 overload
Switch off the E-heater 1
The overload protector of E-heat 1 acts.
EL heater2 overload
Fire / Smoke detected(Serious Alarm) UNIT
OFF
Switch off the E-heater 2
The overload protector of E-heat 1 acts.
Switch off the unit
Fire/smoke protector acts.
Switch off the unit
Phase sequence protector is trigged.
Power alarm
It keeps 10s after difference between Ta
and Ts is higher than design value. The
unit will alarm.
It keeps 10s after difference between Ta
and Ts is lower than design value. The unit
will alarm.
It keeps 10s after difference between Ha
and Hs is higher than design value. The
unit will alarm.
It keeps 10s after difference between Ha
and Hs is lower than design value. The unit
will alarm.
High room temperature
Low room temperature
High room humidity
Low room humidity
Operating hour threshold reached for
compressor 1
Operating hour threshold reached for mail
fan
Room temperature probe faulty or
disconnected
Only remind, need to cancel alarm.
Switch off E-heater and
compressor
Supply temperature probe faulty or
disconnected
Room humidity probe faulty or disconnected
Switch off humidifier and
compressor
Condenser 1 pressure probe faulty or
disconnected
Switch off compressor
94
a、 When Ta is lower than -30°C and
keeping 60s, alarms and switches off
all the E-heater. When Ta is lower
than 50°C, 999.9°C will be displayed.
b、 When Ta is higher than 80°C and
keeping 60s, alarm and switch off
compressor. When Ta is higher than
95°C, 999.9°C will be displayed.
a、 When Ts is lower than -30°C and
keeps 60s, unit will alarm. When Ts is
lower than -50°C, -999.9°C will be
displayed.
b、 When the supply air temperature is
higher than 80°C and keeps 60s, unit
will alarm. When it is higher than
95°C, 999.9°C will be displayed.
a、 When Ha is lower than 5% and it
keeps 60s, unit will alarm and
switch off humidifier.
b、 When Ha is higher than 90% and
it keeps 60s, unit will alarm and
switch off compressor.
a. When discharge pressure
displayed is lower than -3.4bar
and it keeps 60s, the unit will
alarm.
b. When discharge pressure
displayed is higher than 37.4bar
and it keeps 60s, unit will alarm.
MCAC-PDSM-2013-04
Built-in humidifier: high current
Switch off humidifier
Built-in humidifier: no water in the
cylinder(cylinder off)
Built-in humidifier: low current
High pressure compressor 1 thermal
overload
High pressure + compressor 1 thermal
overload
Operating hour threshold reached for
humidifier
Switch off compressor 1
Switch off compressor 1
When sensor of filter is trigged and it
keeps 10s, unit alarms.
Clogged filter
Water under floor(Serious Alarm)
Switch off unit
pLAN disconnected
Built-in humidifier: high conductivity alarm
Built-in humidifier: high conductivity
pre-alarm
Built-in humidifier: low steam production
Built-in humidifier: water drain alarm(cylinder
off）
Built-in humidifier: cylinder full alarm(cylinder
off)
Built-in humidifier: cylinder being depleted
signal
Actual current of humidifier is 130%
higher than standard current for long
time.
After water inlet valve is opened,
actual current in humidification state
cannot reach current of evaporating.
Conductivity of water inside humidifier
is lower than 75μS/cm.
Discharge pressure 1 is higher than
top limit of pressure sensor.
Pressure protection of compressor 1 is
trigged.
Water leakage sensor is trigged.
a. When unit from address U2 to U8
is disconnected from group and it
keeps 60s, unit will alarms.
b. Controller of pLAN address
(except address 1/0) is
disconnected with controller of
address 1 and it keeps 60s, unit
alarms.
is higher than 2000μS/cm.
is higher than 1500μS/cm.
After water outlet valve opened,
operates with high current in
humidification state.
Non-humidification, the sensor of
water level is trigged.
Humidifier should be maintained.
Built-in humidifier: presence of foam
Foam produce because of
alkalescency water inside humidifier.
Built-in humidifier: cylinder depleted
Humidifier should be maintained.
Built-in humidifier: compulsory maintenance
alarm Cylinder 1
Built-in humidifier: recommended
maintenance signal Cylinder 1
Humidifier already works for 10000h.
Humidifier already works for 2000h. It
should be maintained.
Note:
Ambient temperature: Ta
Setting temperature: Ts
Ambient relative humidity: Ha
Setting relative humidity: Hs
95

Midea Precision Air Conditioner Technical Manual （Down delivery

Transcription

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