Microchannel

Transcription

Microchannel

Microchannel
REMOTE AIR-COOLED CONDENSER
WITH ELECTRONICALLY COMMUTATED AXITOP MOTORS
Technical Bulletin: MXCE_002_091815
Products that provide lasting solutions.
Microchannel Remote Air-Cooled Condenser
Krack, a Hussmann
Corporation brand,
Krack’s new Microchannel Remote Air-Cooled Condenser incorporates
a new patented modular assembly.
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has a long tradition
of leadership and
product innovation
in the refrigeration
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Smaller size and less weight reduces cost in the building construction.
he new coil has less internal volume resulting in a significant reduction
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in refrigerant charge. Less refrigerant is environmentally friendly.
Coil slabs are easily replaced from the rear of the unit.
Environmentally Friendly Benefits
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industry.
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educed Coil Internal Volume - Resulting in a significant reduction
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in condenser operating and flooding charge.
xiTop Fan Diffuser - Compared to a standard fan blade and guard,
A
the AxiTop increases CFM 10% while lowering energy consumption 5%.
C Motor - Continuously variable speed operation provides vastly
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greater energy savings than traditional fan cycling.
California Energy Commission
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Models compliant with CEC Title 24 are offered.
Table of Contents
Benefits and Features
1
System Selections
2
Model Key
2
Applications3
Performance Data 4
California Energy Commission Title 24 Performance Data 5
Dimensional Data
- Standard Model
- Receiver Model
6
7
Receiver Data
8
Control System
8
Electrical Data
9
Control Panel Nomenclature
10
Condenser Control Panel
11
MICROCHANNEL REMOTE AIR-COOLED CONDENSER
Specifications subject to change without notice.
Benefits and Features
Remote Air-Cooled Condenser
Compact Design
Patented Microchannel Condenser Modular
Assembly Design (Patent #6988538)
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Arranged for vertical air discharge.
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ulti-fan sections compartmented to allow
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individual fan cycling while preventing off-fan
“windmilling.”
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Modular construction and fewer parts.
- Available in 2 to 14 fan models.
AxiTop Fan Diffuser
emovable end panel for clean out and service
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access.
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Corrosion Resistant
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Lighter weight.
- Up to 35% weight reduction compared to
traditional condenser design.
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ll models employ mill galvanized steel fan
A
sections and coil side baffles.
esign provides a clean path for air to exit
D
and reduces turbulence.
ompared to a standard fan blade and guard, the
C
AxiTop increases CFM 10% while lowering energy
consumption 5%.
ound levels are also reduced thanks to the
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lowered turbulence.
Legs are heavy mill gauge galvanized steel.
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orrosion resistance is improved with an all aluminum
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microchannel coil, reducing the chance for galvanic
corrosion that exists on traditional copper tube and
aluminum fin coils. Additionally, the microchannel
tubes are coated with a sacrificial metallic layer that
is less noble than the tube, fin, and braze material.
Optional Features
Protective Cover Panels
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Electro-Fin coated coils.
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Mounted receiver.
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Reusable air filter.
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Module isolation ball valves.
Electronically Commutated Motors
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ontinuously variable speed operation results
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in significant savings in energy usage.
ore accurate airflow control prevents wear and
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tear on the coil, extending condenser life.
Integral phase-loss, locked rotor, and overheat
protection.
lectrical enclosures are protected with labyrinth
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seals, gaskets, and liquid tight connections for
all-weather operation.
Versatile Fan Control Methods
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Electronic relay boards.
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Temperature or pressure speed controls.
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No controls.
Replaceable High Efficiency Coil
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xtruded aluminum microchannel coil construction
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increases coil efficiency, while reducing refrigerant
operating charge, unit weight and footprint.
nit design allows for coil replacement from rear
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of unit.
US
1
EVAPORATOR
TEMP (˚F)
90
-40
-30
-20
-10
0
5
10
15
20
25
30
40
50
1.66
1.57
1.49
1.42
1.36
1.33
1.31
1.28
1.26
1.24
1.22
1.18
1.14
CONDENSING TEMPERATURE (˚F)
100
110
120
130
140
1.73
1.62
1.53
1.46
1.40
1.37
1.34
1.32
1.29
1.27
1.25
1.21
1.17
1.80
1.68
1.58
1.50
1.44
1.41
1.38
1.35
1.33
1.31
1.28
1.24
1.20
System Selections
TABLE 1
HERMETIC COMPRESSOR
TEMPERATURE (˚F)
EVAPORATOR
THR
- Total Heat of CONDENSING
Rejection
100rejection
110 (BTU/h)
120 is130
140of the
(˚F) total90heat of
TEMP
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ondenser
the sum
1.66
1.73
1.80
2.00
*
*
-40
evaporator refrigeration effect and the heat of compression
1.57
1.62
1.68
1.80
*
*
-30
which varies with compressor type and operating conditions.
1.49
1.53
1.58
1.65
*
*
-20
THR Calculation
Method1.46
1.42
1.50
1.57
1.64
*
-10
1.36
1.40 Compressor
1.44
1.50 Capacity
1.56
1.62
n THR 0
= Open Reciprocating
1.33x BHP)
1.37
1.41
1.46
1.52
1.59
5
(BTU/h)
+ (2545
1.31
1.34
1.38
1.43
1.49
1.55
10
n THR = Suction Gas Cooled Hermetic Reciprocating
1.28
1.32
1.35
1.40
1.46
1.52
15
Compressor Capacity (BTU/h) + (3413 x kW)
1.26
1.29
1.33
1.37
1.43
1.49
20
1.24
1.27
1.31
1.35
1.40
1.45
25
THR Estimated Method
1.22
1.25
1.28
1.32
1.37
1.42
30
n THR may be estimated by multiplying the rated
1.18 capacity
1.21
1.24the compressor
1.27
1.31 operating
1.35
40
compressor
BTU/h
by
1.14shown
1.17
1.201 or 2.
1.23
1.26
1.29
50
condition
factor
in Table
Multiply
by altitude
* Beyond
the normal result
limits for single-stage
compressorfactor
application.when applicable.
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TABLE 2
EVAPORATOR
TEMP (˚F)
-30
-20
-10
0
10
20
30
40
50
OPEN COMPRESSOR
90
100
110
120
130
140
1.37
1.33
1.28
1.24
1.21
1.17
1.14
1.12
1.09
1.42
1.37
1.32
1.28
1.24
1.20
1.17
1.15
1.12
1.47
1.42
1.37
1.32
1.28
1.24
1.20
1.17
1.14
*
1.47
1.42
1.37
1.32
1.28
1.24
1.20
1.17
*
*
1.47
1.41
1.36
1.32
1.27
1.23
1.20
*
*
*
1.47
1.42
1.37
1.32
1.28
1.24
* Beyond the normal limits for single-stage compressor application.
Model Key
FEET
TABLE 3
ALTITUDE
FACTOR
1,000
1.02
MX
2,000
1.05 H
3,000
1.07
4,000
1.10
UNIT TYPE:
MX = Microchannel
FEET
-
5,000
06
6,000 M
7,000
8,000
FACTOR
*
*
*
1.64
1.56
1.52
1.49
1.46
1.43
1.40
1.37
1.31
1.26
*
*
*
*
1.62
1.59
1.55
1.52
1.49
1.45
1.42
1.35
1.29
EVAPORATOR
TEMP (˚F)
-40
-30
EVAPORATOR
-20(˚F)
TEMP
-10
-30
0
-20
5
-10
10
0
15
10
20
20
25
30
30
40
40
50
50
HERMETIC COMPRESSOR
90
100
130
140
TABLE1102 120
1.66
1.73OPEN1.80
2.00
*
COMPRESSOR
1.57 CONDENSING
1.62
1.68TEMPERATURE
1.80
* (˚F)
1.49
1.53
1.58
1.65
*
90
100
110
120
130
1.42
1.46
1.50
1.57
1.64
1.37
1.42
1.47
*
*
1.36
1.40
1.44
1.50
1.56
1.33
1.37
1.42
1.47
*
1.33
1.37
1.41
1.46
1.52
1.28
1.32
1.37
1.42
1.47
1.31
1.34
1.38
1.43
1.49
1.24
1.28
1.32
1.37
1.41
1.28
1.32
1.35
1.40
1.46
1.21
1.24
1.28
1.32
1.36
1.26
1.29
1.33
1.37
1.43
1.17
1.20
1.24
1.28
1.32
1.24
1.27
1.31
1.35
1.40
1.14
1.17
1.20
1.24
1.27
1.22
1.25
1.28
1.32
1.37
1.12
1.15
1.17
1.20
1.23
1.18
1.21
1.24
1.27
1.31
1.09
1.12
1.14
1.17
1.20
1.14
1.17
1.20
1.23
1.26
*
*
*
140
**
1.62
*
1.59
*
1.55
1.47
1.52
1.42
1.49
1.37
1.45
1.32
1.42
1.28
1.35
1.24
1.29
TABLE
TABLE 32
FEET
EVAPORATOR
1,000(˚F)
TEMP
2,000
-30
3,000
-20
4,000
-10
0
10
20
30
40
50
ALTITUDE
OPEN COMPRESSOR
FACTOR
FEET
FACTOR
CONDENSING TEMPERATURE
(˚F)
901.02 100
1105,000120
1301.12 140
1.371.05 1.42
1.476,000 *
* 1.15 *
1.331.07 1.37
1.427,0001.47
* 1.17 *
1.281.10 1.32
1.378,0001.42
1.471.24 *
1.24
1.28
1.32
1.37
1.41
1.47
1.21
1.24
1.28
1.32
1.36
1.42
1.17
1.20
1.24
1.28
1.32
1.37
1.14
1.17
1.20
1.24
1.27
1.32
1.12
1.15
1.17
1.20
1.23
1.28
SAMPLE CALCULATION: 95°F AMBIENT-SUCTION COOLED SEMI
1.09
1.12
1.14
1.17
1.20
1.24
DESIGN
COMP
TD
NOM
REF °F
HP
134a 15
6
404A 10
9
MOTOR VOLTAGE:
404A 10
10 FEET
K = 208/230/3/6012
22 15
1,000
1.12
1.15
1.17
1.24
TABLE 1
2.00
1.80
1.65
1.57
1.50
1.46
1.43
1.40
1.37
1.35
1.32
1.27
1.23
BASED ON R-2
COMPRESSOR RATING
SAT SAT
TD
REF
TOTAL
SUCT COND NET MOTOR
°F BTU/h kW BTU BTU/h FACTOR FACT
°F
4.3 14676 54,766 ÷ 0.95 x 1.
40090
110
+20
TABLE
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8.1 27645 73,545 ÷ 0.98 x 1.
45900
105
-20
ALTITUDE
83,405 ÷ 0.98 x 1.
50640
105
-20
FACTOR
FEET9.6 32765FACTOR
÷ 1.00 x 1.
137,106
9.7
33106
104000
110
+20
1.02
5,000
1.12
UNIT THR REQ
1.05
6,000
1.15
M = 460/3/60
2,000
U = 380/3/50
FAN/MOTOR
3,000
1.07
7,000
1.17
COMBINATION:
RECIPROCATING
COMPRESSORS
SAMPLE CALCULATION: 95°F AMBIENT-SUCTION COOLED SEMI-HERMETIC
4,000
1.10
8,000
1.24
H = 1020 RPM 2.5 HP EC
SYSTEM ACTUAL
CAP
COMPRESSOR
DESIGN SAT SAT
COMP
TOTALRATING
NUMBER OF BASED
FANS: ON R-22 AT 15°FTD
SELECT PER CIRCUIT # NUMBER TD
TD
REF
TOTAL
TD SUCT COND NET MOTOR 02
NOM
10
THR CIRCUIT REQ’D CIR L TO R
FACTOR FACTOR
BTU BTU/h
°F
°F BTU/h kW 04
°F
REF °F
HP
12
4.3
06
14 ÷ 0.95 x 1.0 = 57648 13503
4
1
54,766
16.1
110 40090 4.3 14676
+20
134a 15
6
08
8.3
10
2
73,545 ÷ 0.98 x 1.5 = 112569 13503
105 45900 8.1 27645
-20
404A 10
9
8.3
10
12
2
SAMPLE CALCULATION:
127661
1.5 = DESIGN
105 50640 9.6 32765 83,405 ÷ 0.98 xCOMP
-20
404A 10
÷
1.0 = 137106
110 104000 9.7 33106 137,106 1.00 xNOM
+20
22 15
TD
MICROCHANNEL
REMOTE AIR-COOLED CONDENSER
UNIT THRHPREQ’DREF 434984
°F
134a 15
6
404A 10
9
404A 10
10
95°F AMBIENT-SUCTION COOLED SEMI
10
3
13503 SAT9.5
9.5
BASED ON R-2
COMPRESSOR
RATING
SAT
10.1
10
4
13503 COND NET MOTOR
15.1TOTAL
TD
REF
SUCT
34 kW BTU BTU/h FACTOR FACT
°F BTU/h
°F
110 40090 4.3 14676 54,766 ÷ 0.95 x 1.
+20
105 45900 8.1 27645 73,545 ÷ 0.98 x 1.
-20
105 50640 9.6 32765 83,405 ÷ 0.98 x 1.
-20
Applications
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ocate Condensers no closer than their width from walls
L
or other condensers. Avoid locations near exhaust fans,
plumbing vents, flues or chimneys.
Parallel Condensers should be the same model resulting
in the same refrigerant side pressure drops. Compressor
discharge lines should have equal pressure drops to each
condenser.
ondenser Refrigerant Charge for Summer conditions
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are listed on the Performance Data Table. The additional
Winter Flooding charge required is difficult to predict
with fan cycling and is maximized with holdback; however,
the maximum additional refrigerant charge is also listed
on the Performance Data Table for Winter conditions
at -20˚F. The Summer operating and Winter maximum
flooding charge is substantially less than that required for
traditional tube and fin condensers due to the reduced
internal volume of the microchannel coils.
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eceiver Capacity should be sized to store condenser
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summer charge, plus the condenser low ambient
allowance, plus the evaporator charge, plus an allowance
for piping and heat reclaim coil charges.
Compressor Discharge lines should be sized to minimize
pressure drops and maintain oil return gas velocities. Each
connection should be looped to the top of the condenser.
Gravity Liquid Drain Lines should drop from each outlet as
low as possible before headering or running horizontally.
Pitch downhill to receiver.
REFRIGERANT LINE CAPACITY DATA
COPPER
LINE
SIZE
O.D.
LINE CAPACITY IN TONS
COMPRESSOR
DISCHARGE LINE
R-404A R-407A R-134a
CONDENSER TO RECEIVER
LIQUID LINE 100’
R-404A R-407A
R-134a
LBS. OF REFRIGERANT
LIQUID PER 100’
OF LENGTH
R-404A R-407A R-134a
5/8
0.5
1.0
0.5
3.0
3.6
3.7
11.0
13.0
13.0
7/8
2.0
3.0
2.0
6.0
7.4
7.7
22.0
25.0
26.0
1-1/8
4.5
6.5
4.5
10.4
12.7
13.0
36.0
42.0
43.0
1-3/8
7.0
15.0
7.0
16.0
19.2
20.0
55.0
64.0
65.0
1-5/8
15.0
20.0
11.0
23.0
29.0
28.5
78.0
90.0
92.0
2-1/8
30.0
45.0
28.0
40.0
47.0
46.0
138.0
160.0
163.0
2-5/8
45.0
75.0
43.0
62.0
73.0
72.0
212.0
245.0
250.0
Capacity is compressor suction tons for application between -40ºF and +40ºF suction at condensing temperatures between 80ºF and 120ºF sat.
For multiple or unloading compressor application, the vertical discharge riser from the compressor may need to be one size smaller.
This table data is only to be used as a guide. For exact values, please calculate to your specific job line lengths and design pressure/temp values
using ASHRAE handbook or ARI refrigerant tables.
3
Performance Data
TOTAL HEAT OF REJECTION (MBH)
R-404A / R-507
R-407A
TEMP DIFFERENCE
TEMP DIFFERENCE
MX
MODEL
10°F
15°F
20°F
25°F
MXH-02
MXH-04
MXH-06
MXH-08
MXH-10
MXH-12
MXH-14
171.1
342.2
513.3
684.4
855.5
1026.6
1197.7
256.7
513.3
770.0
1026.6
1283.3
1539.9
1796.6
342.2
684.4
1026.6
1368.8
1711.0
2053.2
2395.4
427.8 167.0 250.5
855.5 334.0 501.0
1283.3 501.0 751.5
1711.0 668.0 1002.0
2138.8 835.0 1252.5
2566.5 1002.0 1503.0
2994.3 1169.0 1753.5
10°F
15°F
20°F
25°F
AIR
FLOW
(CFM)
334.0
668.0
1002.0
1336.0
1670.0
2004.0
2338.0
417.5
835.0
1252.5
1670.0
2087.5
2505.0
2922.5
27100
54200
81300
108400
135500
162600
189700
CONDENSER CHARGE
R-404A (LBS)
SUMMER
4
15
23
40
52
80
108
EST.
SHIP
SOUND WEIGHT
WINTER 10'(dBA) (LBS)
12
26
40
55
77
88
106
60
63
65
66
67
68
68
674
1398
2047
2736
3420
4069
4718
Note: Ratings are based on 85˚F - 115˚F entering air temperature and 0˚F sub-cooling. The temperature difference is between the saturated condensing temp. and the entering air temp. to the condenser.
See Electrical Motor Amp Data Table on page 9.
CORRECTION FACTOR FOR OTHER REFRIGERANTS
CHARGE CORRECTION FACTOR
CAPACITY FACTOR
MULTIPLY R-404A BY:
SUMMER
WINTER
R-404A
1.00
1.00
1.00
R-134A
0.97
1.17
1.11
R-22
1.02
1.14
1.09
R-407A
See R-407A Chart
1.10
1.08
R-407C
0.98 x R-407A
1.09
1.07
REFRIGERANTS
*NOTE:
1. Ship weight includes “ship loose” leg weights.
2. Sound data is an estimate only. It can be greatly affected by surroundings.
4
California Energy Commission (CEC) Title 24
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itle 24 is an energy efficiency mandate that applies to equipment sold for use in
T
warehouse and retail food store applications in California.
Air-cooled condensers must meet efficiency standards set in this mandate.
o comply, AxiTop-equipped units operate with a slightly reduced maximum speed.
T
This results in a small drop in capacity and a far larger reduction in energy usage.
he design and controls of the unit remain the same, with only the motor
T
programming changing.
California Energy Commission Title 24 Performance Data
TOTAL HEAT OF REJECTION (MBH)
MX
MODEL
MXH-02
MXH-04
MXH-06
MXH-08
MXH-10
MXH-12
MXH-14
10°F
R-404A / R-507
R-407A
TEMP DIFFERENCE
TEMP DIFFERENCE
15°F
20°F
25°F
10°F
15°F
159.1 238.7 318.2 397.8 155.8 233.7
318.2 477.3 636.4 795.5 311.6 467.4
477.3 716.0 954.6 1193.3 467.4 701.1
636.4 954.6 1272.8 1591.0 623.2 934.8
795.5 1193.3 1591.0 1988.8 779.0 1168.5
934.8 954.6 1431.9 1909.2 2386.5 1402.2
1113.7 1670.6 2227.4 2784.3 1090.6 1635.9
20°F
25°F
AIR
FLOW
(CFM)
311.6
623.2
934.8
1246.4
1558.0
1869.6
2181.2
389.5
779.0
1168.5
1558.0
1947.5
2337.0
2726.5
24255
48510
72765
97020
121275
145530
169785
CONDENSER CHARGE
R-404A (LBS)
SUMMER
4
15
23
40
52
80
108
EST.
SHIP
SOUND WEIGHT
WINTER 10'(dBA) (LBS)
12
26
40
55
77
88
106
58
61
63
64
65
66
66
674
1398
2047
2736
3420
4069
4718
Note: Ratings are based on 85˚F - 115˚F entering air temperature and 0˚F sub-cooling. The temperature difference is between the saturated condensing temp. and the entering air temp. to the condenser.
Units compliant with Title 24 are programmed to run their motors at a lessened top speed, significantly reducing their energy usage with a minimal impact on capacity.
At full speed, each motor consumes 1169 watts. However, as these motors are continuously variable speed they will use significantly less energy during standard operation.
See Corrections Factor Table on page 4. See Electrical Motor Amp Data Table on page 9.
5
Dimensional Data - Standard Model
6
Dimensional Data - Receiver Model (If Applicable)
7
Receiver Data
Microchannel is available with a mounted receiver for applications where a remote receiver is desired.
Included in the option are extended legs, receiver, 3-way valve, relief valve, rotalocks, ball valves, and
ORI/ORD valves. Optional heated and insulated receivers are available.
RECEIVER CAPACITIES @ 80% FULL
MODEL SIZE
R-404A
(LBS)
R-407A
(LBS)
10-3/4” x 48”
10-3/4” x 60”
12-3/4” x 72”
14-3/4” x 96”
114
144
245
395
126
159
270
435
ADDITIONAL UNIT WEIGHT
CONNECTION SIZES
NUMBER OF RECEIVERS
NUMBER OF FANS
1
2
NUMBER OF FANS
INLET
OUTLET
02
220
-
2
1-3/8”
1-3/8”
04
290
-
4
1-3/8”
1-3/8”
06
360
550
6
2-1/8”
2-1/8”
08
440
620
8
2-1/8”
2-1/8”
10
600
900
10
2-5/8”
2-5/8”
12
680
980
12
3-1/8”
3-1/8”
14
750
1,050
14
3-1/8”
3-1/8”
Control System
Piping Schematic for Winter Control
Eternal Equalizer
Head pressure control for systems with air cooled condenser
is accomplished with two pressure regulating valves designed
specifically for this type of application. When low ambient
conditions are encountered during winter operation on air
cooled systems with a resultant drop in condensing pressure,
the Head pressure control’s purpose is to hold back enough of
the condenser liquid refrigerant so that some of the condenser
surface is rendered inactive. This reduction of active condensing
surface results in a rise in the condensing pressure and sufficient
liquid line pressure for normal system operation.
Evaporator
Distributor
Condenser
Compressor
Solenoid
Valve
TEV
HM Valve
Gas Check Valve
Receiver
8
LL
Drier
Microchannel Electric Data
Electrical Data
Variable speed EC motors provide vast
energy savings compared to standard
fan cycling arrangements.
FAN MOTOR
TOTAL FULL LOAD AMPS
MX
MODEL
208-230/3/60
MXH-02
MXH-04
MXH-06
MXH-08
MXH-10
MXH-12
MXH-14
19.6
39.2
58.8
78.4
98.0
117.6
137.2
460/3/60
380/3/50
9.8
19.6
29.4
39.2
49.0
58.8
68.6
Minimum Unit Circuit Ampacity = 1.25 x FLA of one motor + FLA of remaining motors.
Maximum Unit Overload Protection = 4.0 x FLA of one motor + FLA of remaining motors.
Power Consumption
Compared to Requested Unit Airflow
% Power Consumption
*NOTE:
1)
2)
3)
4)
Additional Winter Flooding Charge shown is without M
Unit weight includes “Ship Loose” leg weights.
Multiply Summer Operating Charge by 1.14 for R-22.
Multiply Winter Flooding Charge by 1.10 for R-22.
% Requested Airflow
9
Control Panel Nomenclature
CPC
EC
B
3
1
1
N
RELAY BOARD
(Optional)
AMBIENT AIR SENSOR:
T = Sensor Provided
N = Sensor Not Required
If supplied with
condenser - specify:
Danfoss, Novar, Others
TYPE OF APPLICATION:
1 = Standard
4 = No Control Operation (Terminal Blocks Only)
5 = Winter Reduction (4 fans or more)
CONTROL OPTIONS:
NC = No Controls
EC = Pressure Controls
TF = Temperature Controls
CONTROL VOLTAGE:
A = 208/230V
B = 115V
C = No Control Voltage
D = 24V
E = 208/230V w/o Transformer
F = 115V w/o Transformer
H = 24V w/o Transformer
FUSES AND BREAKERS:
1 = Individual Fuses per Fan
2 = Individual Circuit Breakers per Fan
4 = Terminal Blocks Only
CONTROL TYPE:
3 = Johnson Electronic
4 = No Controls
Note:
* Without Transformer - Control Voltage from
Source Outside of Condenser Control Panel
10
Condenser Control Panel
Standard Fan Control Panel Arrangement
n
Standard Johnson Controls adjust fan speed according to pressure.
n
Control setpoints are adjustable according to the needs of the system.
n
ll fans will continuously vary their speed according to the control signal, providing precise
A
capacity control and energy cost savings.
n
Internal motor programming allows fans to cycle off individually as system demand decreases.
n
Relay boards with analog outputs are also offered to allow speed control of these motors.
n
or full customer control, a no controls option provides individual control connections
F
for each motor.
Control Panel
n
tandard weather resistant enclosure is mounted on the right side of the unit
S
when looking at the headers.
n
Control power is 24, 115 or 230 volts. A transformer is factory installed when required.
n
Each motor protected by fuses.
n
Disconnect not included, but may be required to meet local codes.
Optional Arrangements
n
Winter reduction available on models with 4 or more fans.
11
Condenser Control Panel - Standard Johnson Controls
12
Use your QR reader to
reference current document
version on www.krack.com.
Krack, a Hussmann Corporation brand
890 Remington Boulevard
Bolingbrook, Illinois 60440
Ph: 630.629.7500
www.krack.com
Printed in U.S.A. ©2015 Krack, a Hussmann Corporation brand
MXCE_002_091815

Microchannel

Transcription

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