commercial air conditioners

MCAC-2012-39
COMMERCIAL AIR CONDITIONERS
M Type Air Cooled Screw Chiller
2012
Commercial Air Conditioner Business Units
Midea Air Conditioning and Refrigeration Sector
Add: West region of Midea commercial air conditioner department, Industry Avenue,
Beijiao, Shunde, Foshan, Guangdong, P.R. China Postal code:528311
Tel: +86-757-22394101 Fax: +86-757-26338003
http://www.midea.com http://www.mideaaircon.com
Corporate
Introduction
Midea Group
From its humble beginnings in 1968, Midea has developed into a
large corporation, covering HVAC, appliances, lighting, industrial
components, logistics, and real estate. Its 40 years of relentless
growth has brought its global turnover to $14 billion USD in 2009.
Consequently, Midea has created over 150,000 jobs both within
China and all over the world. In addition to providing affordable
goods to consumers worldwide, Midea is a responsible corporate
citizen, and has contributed to several social causes.
Midea believes in creating value through rapid response to
market demands, cost-efficient operations and consumer
satisfaction. As a result, Midea wields vast production capacities
to meet these demands, a fully integrated manufacturing
process, and a comprehensive range of affordable, high-quality
products to serve its global customers.
Today, Midea is a home appliance leader in China. The company
continues to actively globalize its operation by opening plants in
Vietnam, Belarus and Egypt. Additionally, Midea has several
forthcoming plants in order to offer enhanced products and
services closer to the market.
Midea CAC (MCAC)
As a key part of Midea Group, the Midea Central Air Conditioner
(CAC) Business Unit is a professional CAC products supplier and
commercial products solution expert. Since 1999 Midea central
air-conditioner contributes to the commercial product R&D and
technology innovation. By cooperating with the international
enterprises plus the independent R&D, Midea CAC achieves big
success in the commercial air-conditioner market and has
established thousands of sample projects all over the world.
Right now Midea CAC is one of the most professional CAC products
supplier as well as the professional project solution provider in
marketing, sales, project design and after service etc.
MCAC Chongqing factory with 14 product lines concentrates on the
water cooled centrifugal / screw/ scroll chillers, Air cooled screw/
scroll chillers, AHU/FCU etc.
MCAC Shunde factory with 31 product lines concentrates on the
VRF (DC inverter product/ Digital scroll product), split product, heat
pump water heater, AHU/FCU etc.
07
M Type Air Cooled Screw Chiller
R410A (25kW-250kW) 50Hz
MIDEA CHILLER
MANUFACTURING-BASE
INTRODUCTION
With 46 years experience in chiller industry, Midea Chongqing chiller manufacturing base is becoming
one of the largest chiller company in China. It covers an area of 800 Mu (137 acre), with a registered
capital of 12.5 million US $ and a total investment of over 0.6 billion US$. There are 6 product series
and over 100 model products including centrifugal chiller, screw water chiller, scroll water chiller,
water-cooled packaged unit, and central air-conditioning indoor terminal device(AHU/FCU). Five chiller
manufacturing shops with 14 flexible production lines lead an anual manufacturing capacity of 250
units centrifugal chiller, 1000 units of air cooled screw chiller, 2000 units of water cooled screw chiller
and 200000 units of AHU product.
Strong R&D and manufacturing capacity makes Midea Chongqing general become the fastest
developing company in chiller industry. The chiller test lab which is certified by China National
Refrigeration Equipment Inspection Center is the largest refrigeration test capacity in Asia. The
engineer team with 100 top engineers and 2 chiller experts who were awarded by the central
government in structure, electricity, performance testing and software aspect makes Midea the
headship in chiller industry. In the year of 2011 Midea refrigeration group invests another 150 million
RMB for test lab as ARI test floor, big capacity air cooled screw life span testing room, 1500kW
compressor motor test floor, etc.
Concentrating on energy-saving and ejection-decreasing, Midea Chongqing chiller factory commits
itself to the reliable and high efficiency products for the world. The chiller products are widely used in
different countries and obtain good public praise from the clients. The solutions for the Beijing capital
international airport ,Jakarta international airport, China rapid transit station won good feedback and
commendation. Continuing with the past and opening up the future, Midea chiller brand will go further
and create an illustrious future.
CONTENTS
05
Nomenclature
06
Brief introduction
09
Mechanical components
15
Specification
17
Dimension
31
PLC controller
33
Field wiring diagram
04
05
M Type Air Cooled Screw Chiller
M Type Air Cooled Screw Chiller
BRIEF INTRODUCTION
NOMENCLATURE
Midea C series air cooled screw chillers are the premium solution for industrial and
commercial applications where installers, consultants and building owners require optimal
performances and optimized quality. Midea C series air cooled screw chillers are designed
LS
BLG C W XXX
to meet current and future requirements in terms of reliability, energy efficiency and
A
intelligent control. We use the best technologies available today: Twin-rotor screw
compressor with a variable capacity valve is ideally matched to evaporator and condenser
optimally configured for superior heat transfer and unit efficiency.
■
Environmentally friendly refrigerants R134a.
■
Low-noise,low-vibration high efficiency fans,high-efficiency rifled pipe with
aluminum fin heat exchangers.
■
Touchable screen with PLC control system is user-friendly operator interface.
■ Completely assembled, factory wired, evacuated, charged, tested, ready for
installation.
A: CE certification
Nominal cooling
capacity (kW)
Air cooled condenser
Refrigerant type
C R134a; Omit for R22
Compressor structure type
BLG Semi-hermetic screw comp.
Water chiller
06
07
M Type Air Cooled Screw Chiller
M Type Air Cooled Screw Chiller
FEATURES AND BENEFITS
Environmental Care
■
PLC Technology Accuracy Control
R134a refrigerant
Refrigerant of the HFC R134a group with zero ozone depletion potential.
It is environmentally safe and does not have a phase-out date.
with a high-efficiency motor and a variable capacity valve that can adjust the capacity of 25%, 50%, 75%
and 100% in 4 stages (Stepless control as an option) and permits exact matching of the cooling capacity to
the actual load.
Electronic expansion device permits the operation at a lower condensing pressure and improve the
utilization of the evaporator heat exchange surface (superheat control).
Automatic scheduling of the compressor allows the chiller to match the fluctuating cooling load and
conserve energy.
Lower Operating Noise
■
The twin-screw compressor adopts the strong points of gapless-loss, high- efficiency cubage,
low-noise, few easy workout parts. Double-wall structure not only compensates the pressure, but also
significantly reduces the noise. Cast iron casing and oil separator can reduce the noise significantly.
■
Low-noise fans, made of a composite material are even quieter and do not generate
intrusive
low-frequency noise. Rigid fan mounting is preventing start-up noise.
■
Multiple direct drive dynamically balanced propeller fans operate at low tip speeds for maximum
efficiency and minimum noise and vibration. A heavy-gauge vinyl-coated fan guard protects each fan.
Outstanding Reliability
■ Fully factory testing of all the units ensures a trouble free start-up. The unit has passed full factory test
before being delivered to ensure the reliable working on the site.
■
Transport test ensure the chiller in good condition after reach the site.
Simple Structure Easy Installation
■ The unit can be placed in service after being connected with power supply and water supply during field
installation .Standard flange connection and wire mesh to the electrical panel make the installation easy
and simple.
Intelligent control：The unit is controlled by micro-controller(PLC) with has the automatic control
high-efficiency operation and more convenient in use. The unit with RS485 open protocol
■ Extremely high full load and partial load energy efficiency. New twin-rotor screw compressor equipped
■
The sensors related to control and other assemblies are equipped by factory and strictly tested.
■
functions of fault diagnosis, energy management and anti-freezing monitoring ensure the
Economical Operation Cost
■
■
communication interface is BMS compatible. The startup and shutdown of each unit is controlled by the
host computer, reducing the running cost to the lowest.
■ Complete and safe control system: All electrically control elements are designed and selected with
stable quality and reliable function; The unit designed with multiple security measures ensure the safe
and reliable running witch including high and low pressure protection, oil feed pressure difference
protection, anti-freezing protection, water flow protection, converse default phase protection, Overload
protection etc.
08
09
M Type Air Cooled Screw Chiller
M Type Air Cooled Screw Chiller
MECHANICAL COMPONENTS
Advanced Twin-Rotor Screw Compressor
Condenser
Midea® air screw chiller is equipped with the 3rd generation industrial semi-hermetic screw
■
compressor which with the latest advanced 5-6 asymmetry dentiform rotors. The rotors are
groove copper tube, mechanically expanded onto the die formed aluminum
processed by high-precision CNC and each part is well-proportioned and none-gap matching,
fin to ensure optimum heat exchange capability.
which minimizes the friction resistance and clearance lost, guarantees quiet running and good
■ Grooved condenser fin and tube condenser coils of seamless, internally
duration.
enhanced, high condensing coefficient, corrosion resistant copper tubes
The compressor motor is direct drive type with two poles to operate at 2960 rpm (50HZ) input
arranged in staggered rows and mechanically bonded to corrosion resistant
speed. It is non-reversing, squirrel cage induction type suitable for the voltage shown on the
aluminum alloy fins with full height fin collars.
equipment schedule. Compressors combined an balance piston with separated radial and axial
Blue fin and black epoxy-coated aluminum fin are options.
Air cooled condenser coil consist of staggered rows of seamless inner
force bearings, oil cooler connector, liquid injection & economizer connector, PTC motor coil
protection and discharge temperature & it's controller, oil level switch and oil pressure differential
switch, oil sight glass, oil strainer, crank case heater and other accessories. The bearing of
Fan
compressor is from SKF, Sweden gurantee the continuously runing more than 60,000 hours.
■
Condenser Fans with low noise, full airfoil cross section for maximum
efficiency, statically and dynamically balanced for low vibration operation,
and positioned in extended, formed steel orifices for low sound and
1
2
3
maximum efficiency.
4
■
Condenser fan motors are high efficiency, direct drive, 6-pole, 3-phase,
Class-“F”insulation and IP54 protection, current overload protected, totally
enclosed type with double sealed, permanently lubricated, ball bearings.
Evaporator
■ Evaporator is tube-in-shell heat exchanger design, with internally-finned
copper tubes roller expanded into the tube sheet. Units are fabricated with
high-performance tubing, steel shell & tube sheets. Water boxes are
nozzle-in-head type with victaulic for easy connections.
■ High efficiency, direct-expansion type evaporator with refrigerant in tubes
and chilled liquid through the baffled shell.
5
6
7
8
1 Suction cut-off valve
5 Suction filter net
2 Solenoid valve
6 Motor
3 Discharge cut-off valve
7 Oil heater
4 Oil filter
8 Oil separator filter net
■ Design working pressure for the shell waterside is 1Mpa, and 2.1Mpa for
the refrigerant side.
■ Water baffles fabricated from galvanized steel to resist corrosion.
Removable heads allow access to internally-enhanced, seamless, copper
tubes. Water vent and drain connections including.
■ The 20MM thickness insulation covers all low temperature surfaces
include the evaporator, water box, oil return line, chilled water flow switch
piping etc.
10
11
M Type Air Cooled Screw Chiller
M Type Air Cooled Screw Chiller
MICROPROCESSOR CONTROLS
Throttling Device
■
■ Famous brand electronic expansion valve which control by drive
hinged, latched, and gasket sealed, door.
module control.
■
■
The drive module controller controls the valve according to
EKC312
M
M
AKS
PID arithmetic control the open degree of the valve.
■
input, unit alarm contacts, evaporator pump control, automatic reset
Independent refrigerant circuit per compressor, each using
after power failure, automatic system optimization to match operating
copper refrigerant pipe formed on computer controlled bending
conditions, software stored in non-volatile memory (EPROM) to
machines. Less piping brazed joints result in a highly reliable and
eliminate chiller failure due to AC power failure. Programmed setpoints
leak resistant system.
retained in lithium battery backed RTC memory for a minimum 5 years.
Liquid line components include: Manual shut-off valve with
charging port, high adsorption removable core filter-drier, solenoid
valve, sight glass with moisture-indicator, and reliable electronic
expansion valves for R134a and a thermostatic expansion valves for
remote barrel units.
CONDENSER
ANGLE VALVE
FILTER DRIER
BALL VALVE
TEMPERATURE SENSOR
TEMPERATURE SENSOR
BALL VALVE
SIGHT GLASS
HIGH PRESSURE GAUGE
DUAL PRESSURE SWITCH
SOLENOID VALVE
B
K&B
Danfoss
PRESSURE RELIEF VALVE
PRESSURE SENSOR
LOW PRESSURE SWITCH
Standard controls include: automatic pump down, run signal
contacts, demand load limit from external building automation system
Refrigerant Circuit
■
Color coded, 32 button, sealed keypad with sections for Display,
Entry, Set points, Clock, Print, Program and Unit On/Off.
■
■
Liquid crystal 40 character display with text provided on two lines
and light emitting diode backlighting for outdoor viewing.
AKS
evaporator suction superheat.
■
Controls housed in a powder painted steel cabinet enclosure with
THERMAL EXPANSION VALVE
SOLENOID VALVE
COMPRESSOR
ELECTRONIC
EXPANSION VALVE
COMPRESSOR
LOW PRESSURE GAUGE
ANGLE VALVE
PRESSURE SENSOR
B
K&B
Danfoss
B
K&B
Danfoss
TEMPERATURE SENSOR
EVAPORATOR
WATER OUTLET
DRAIN VALVE
TEMPERATURE SENSOR
ANTIFREEZING SWITCH
WATER INLET
TEMPERATURE SENSOR
12
13
M Type Air Cooled Screw Chiller
OPTIONS
WATER FLOW SWITCH
M Type Air Cooled Screw Chiller
APPEARANCE
■ 360kW / 100RT unit
■ Water flow switch to protect the evaporator need to connect for upright mounting in horizontal
pipe. (Field mounted)
VIBRATION ISOLATION
■ Neoprene Isolation – Recommended for normal installations and provides good performance in
most applications for the least cost. (Field mounted)
■ 1" Spring Isolators – Level adjustable, spring and cage type isolators for mounting under the unit
■ 450kW / 120RT unit
base rails. 1" nominal deflection may vary slightly by application. (Field mounted)
■
2" Seismic Spring Isolators – Restrained Spring-Flex Mountings incorporate a rugged welded
steel housing with vertical and horizontal limit stops. Housings designed to withstand a minimum
1.0g accelerated force in all directions to 50mm. Level adjustable, deflection may vary slightly by
application. (Field mounted)
■ 600kW / 170RT unit
EVAPORATOR
■ 1.6Mpa or 2.0Mpa Waterside Working pressure - 1.6Mpa or 2.0Mpa of the evaporator waterside
working pressure is optional.
■
30mm Insulation – The thickness instulation provided for enhanced efficiency.
■
Evaporator water pipe Flange connection
CONDENSER
■
Hydrophilic blue fins
■
Anti-corrosion fins. This can provide corrosion resistance comparable to copper-fin coils in
■ 720kW / 200RT unit
typical seashore locations.
POWER SUPPLY
■
415V-3P-50Hz
■ 800kW / 225RT unit
Note: For more application, please contact the local office.
■ 900kW / 250RT unit
14
15
M Type Air Cooled Screw Chiller
M Type Air Cooled Screw Chiller
SPECIFICATION
᷉1᷊Single compressor
᷉2᷊Dual compressors
Unit Model
Descriptions
Cooling capacity
kW
LSBLGCW360A
LSBLGCW450A
LSBLGCW600
364
450
594
Power supply
Rated power
consumption
Compressor
Quantity
138
Charge（kg）
184
1
25%,50%,75%,100% 4-step ( 50%~100% stepless as option)
R134a
80
122
125
Fans Quantity
6
8
10
Air Volume（m3/h）
23000×6
23000×8
20000×10
Motor input（kW）
2.8×6
2.8×8
1.8×10
Compressor
LSBLGCW900A
729
810
902
kW
Refrigerant
Type
Quantity
251
Charge（kg）
62.6
77.4
102
Water pressure
drop（kPa）
50
55
60
Inlet/outlet Pipe
diameter（mm）
DN125
DN125
DN125
Water Side
Heat-exchanger
Length（mm）
3730
4730
5700
width（mm）
2280
2280
2280
height（mm）
2370
2370
2400
Shipping weight（kg）
3320
4325
5000
Running weight（kg）
3520
4530
5200
2
2
25%,50%,75%,100% 4-steps ( 50%~100% stepless as option)
R134a
80×2
80+122
122×2
M type Heat exchanger, High efficient exchanger tube + Aluminum fins
Fans Quantity
12
14
16
Air Volume（m3/h）
23000×12
23000×14
23000×16
Motor input（kW）
2.8×12
2.8×14
2.8×16
Shell-and-tube heat-exchanger
Water Volume（m3/h）
125
139
155
Water pressure
drop（kPa）
65
70
80
Inlet/outlet Pipe
diameter（mm）
DN150
DN150
DN150
0.086
Water side fouling factor（m2·°C/kW）
0.086 (m2.k/kW)
278
Semi- hermetic, twin screw compressor
2
Type
Type
Air Side
Heat-exchanger
227
Type
Water Volume（m3/h）
Notes：
1) Nominal cooling capacities are based on the following conditions:
Chilled water inlet/outlet temp: 12°C/7°C; Outdoor temp (DB/WB):35°C/24°C.
2) The applicable ambient temperature range of R134a air-cooled screw unit is 15°C~43°C.
LSBLGCW800A
380V/3P/50Hz
Energy adjustable range%
Shell-and-tube heat-exchanger
Water side fouling factor（m2·°C/kW）
Dimension
Rated power
consumption
Reversed M sharp Heat exchanger. High efficient exchanger tube + aluminum fins
Type
Water Side
Heat-exchanger
1
kW
LSBLGCW720A
Power supply
Semi- hermetic, twin screw compressor
1
Type
Type
Air Side
Heat-exchanger
113
Type
Energy adjustable range%
Refrigerant
Cooling capacity
380-400V,3P+N+PE,50Hz
kW
Unit Model
Descriptions
Length（mm）
7425
8425
9425
width（mm）
2280
2280
2280
height（mm）
2430
2430
2430
Shipping weight（kg）
6700
7750
8900
Running weight（kg）
7000
8050
9200
Dimension
Notes：
1) Nominal cooling capacities are based on the following conditions:
Chilled water inlet/outlet temp: 12°C/7°C; Outdoor temp (DB/WB):35°C/24°C.
2) The applicable ambient temperature range of R134a air-cooled screw unit is 15°C~43°C.
16
17
M Type Air Cooled Screw Chiller
M Type Air Cooled Screw Chiller
CAPACITY TABLE
Ambient temperature/℃
Ambient temperature/℃
Model
LSBLGCW360A
LSBLGCW450A
LSBLGCW600
Outlet
Temp.
15
20
25
30
35
40
Model
43
/℃
Cooling
Capacity
/kW
Power
Input
/kW
Cooling
Capacity
/kW
Power
Input
/kW
Cooling
Capacity
/kW
Power
Input
/kW
Cooling
Capacity
/kW
Power
Input
/kW
Cooling
Capacity
/kW
Power
Input
/kW
Cooling
Capacity
/kW
Power
Input
/kW
Cooling
Capacity
/kW
Power
Input
/kW
5
397.2
91.4
388.0
93.8
372.6
98.6
356.5
105.4
338.8
111.0
318.5
118.9
298.6
126.8
6
410.2
92.0
400.5
94.6
384.3
99.9
368.4
106.4
352.7
111.9
330.6
120.0
314.1
128.1
7
425.5
93.0
415.0
95.5
397.5
100.6
380.7
107.4
364.0
113.0
347.2
121.2
329.0
129.4
8
437.7
93.8
426.4
96.4
407.6
101.7
392.8
108.2
370.5
114.0
351.0
122.5
338.2
130.9
9
449.8
94.4
439.4
97.1
422.1
102.6
405.0
108.8
384.7
114.4
363.0
123.2
349.2
131.9
10
462.5
95.0
452.4
97.8
435.6
103.4
419.7
109.6
393.3
115.7
374.2
124.2
355.1
133.5
11
472.1
95.2
462.4
98.3
446.3
104.5
427.1
110.6
408.4
116.4
386.9
125.0
369.5
134.9
12
489.5
95.9
478.4
99.1
459.9
105.6
441.7
111.5
420.2
117.3
396.6
126.1
381.7
136.3
13
498.8
96.4
488.8
99.8
472.2
106.6
450.7
112.3
432.1
118.1
409.4
127.3
391.6
137.5
14
516.0
97.1
504.4
100.6
485.0
107.6
466.1
113.2
444.0
119.0
421.3
128.3
405.7
138.7
15
534.4
97.7
520.9
101.2
498.4
108.3
481.0
113.9
459.2
119.7
433.2
129.4
409.7
140.0
5
449.9
108.7
443.3
112.2
432.3
119.2
421.4
127.4
410.0
135.3
379.7
148.8
361.6
159.1
6
470.6
110.1
463.1
113.4
450.6
120.1
439.9
128.5
429.3
136.5
398.1
150.0
379.4
160.5
7
491.8
111.1
483.3
114.5
469.2
121.3
458.1
129.8
450.0
138.0
416.2
151.4
396.0
161.8
8
512.2
112.1
503.0
115.5
487.6
122.4
478.0
131.1
466.7
139.1
433.3
152.6
413.2
163.0
9
533.1
113.1
522.9
116.6
505.9
123.7
497.2
132.4
483.1
140.4
449.9
154.0
430.0
164.5
LSBLGCW800A
10
553.5
114.4
542.8
117.9
525.0
124.9
514.6
133.4
498.5
141.6
465.7
155.3
446.0
165.9
11
574.6
115.7
563.0
119.2
543.7
126.2
532.4
134.6
516.9
142.8
483.2
156.7
463.0
167.4
12
596.7
116.8
583.9
120.3
562.5
127.3
551.3
135.9
534.6
144.1
500.9
158.0
480.7
168.7
13
616.2
117.9
603.2
121.4
581.5
128.4
570.4
137.1
551.7
145.3
518.1
159.3
497.9
170.2
14
635.7
118.8
622.7
122.4
601.0
129.6
589.9
138.2
569.8
146.7
535.7
160.8
515.3
171.7
15
650.9
120.1
638.9
123.6
618.9
130.7
605.6
139.4
587.9
147.9
552.9
162.1
531.9
173.0
5
637.0
131.0
619.5
140.5
602.0
151.5
584.0
163.5
554.0
183.0
539.0
194.0
527.5
202.0
6
660.4
131.3
642.4
141.0
624.4
152.1
606.1
164.0
574.7
183.4
559.2
194.4
547.4
202.4
7
683.0
131.4
665.1
141.1
647.3
152.2
628.4
164.0
596.2
184.1
579.5
195.1
568.3
203.2
8
705.6
132.6
687.5
142.1
669.4
153.0
650.2
165.2
617.7
185.2
599.5
195.3
588.0
203.0
9
730.5
133.3
711.8
142.7
693.2
153.5
673.3
165.8
640.4
185.7
621.5
195.7
609.7
203.6
10
755.2
133.8
736.1
143.2
717.0
154.0
696.4
166.3
663.0
186.1
643.4
196.0
631.4
204.1
11
781.2
134.0
761.7
143.5
742.2
154.4
721.4
166.6
686.2
186.5
666.8
196.8
654.4
204.5
12
807.1
134.3
787.2
143.8
767.4
154.8
746.5
166.9
709.4
186.8
690.3
197.6
677.5
204.8
13
834.1
134.4
813.8
144.1
793.6
155.2
772.0
167.4
733.8
187.4
714.5
198.2
701.3
205.4
14
862.2
134.1
841.5
144.2
820.9
155.7
798.1
168.3
759.4
188.2
739.5
198.7
725.8
206.3
15
890.3
134.1
869.2
144.3
848.1
156.1
824.2
169.1
785.0
189.0
764.5
199.1
750.3
207.2
LSBLGCW720A
LSBLGCW900A
Outlet
Temp.
15
20
25
30
35
40
43
/℃
Cooling
Capacity
/kW
Power
Input
/kW
Cooling
Capacity
/kW
Power
Input
/kW
Cooling
Capacity
/kW
Power
Input
/kW
Cooling
Capacity
/kW
Power
Input
/kW
Cooling
Capacity
/kW
Power
Input
/kW
Cooling
Capacity
/kW
Power
Input
/kW
Cooling
Capacity
/kW
Power
Input
/kW
5
794.4
182.8
776.0
187.6
745.2
197.2
713.0
210.8
677.6
222.0
637.0
237.8
597.2
253.6
6
820.4
184.0
801.0
189.2
768.6
199.8
736.8
212.8
705.4
223.8
661.2
240.0
628.2
256.2
7
851.0
186.0
830.0
191.0
795.0
201.2
761.4
214.8
728.0
226.0
694.4
242.4
658.0
258.8
8
875.4
187.6
852.8
192.8
815.2
203.4
785.6
216.4
741.0
228.0
702.0
245.0
676.4
261.8
9
899.6
188.8
878.8
194.2
844.2
205.2
810.0
217.6
769.4
228.8
726.0
246.4
698.4
263.8
10
925.0
190.0
904.8
195.6
871.2
206.8
839.4
219.2
786.6
231.4
748.4
248.4
710.2
267.0
11
944.2
190.4
924.8
196.6
892.6
209.0
854.2
221.2
816.8
232.8
773.8
250.0
739.0
269.8
12
979.0
191.8
956.8
198.2
919.8
211.2
883.4
223.0
840.4
234.6
793.2
252.2
763.4
272.6
13
997.6
192.8
977.6
199.6
944.4
213.2
901.4
224.6
864.2
236.2
818.8
254.6
783.2
275.0
14
1032.0
194.2
1008.8
201.2
970.0
215.2
932.2
226.4
888.0
238.0
842.6
256.6
811.4
277.4
15
1068.8
195.4
1041.8
202.4
996.8
216.6
962.0
227.8
918.4
239.4
866.4
258.8
819.4
280.0
5
847.1
200.1
831.3
206.0
804.9
217.8
777.9
232.8
748.8
246.3
698.2
267.7
660.2
285.9
6
880.8
202.1
863.6
208.0
834.9
220.0
808.3
234.9
782.0
248.4
728.7
270.0
693.5
288.6
7
917.3
204.1
898.3
210.0
866.7
221.9
838.8
237.2
814.0
251.0
763.4
272.6
725.0
291.2
8
949.9
205.9
929.4
211.9
895.2
224.1
870.8
239.3
837.2
253.1
784.3
275.1
751.4
293.9
9
982.9
207.5
962.3
213.7
928.0
226.3
902.2
241.2
867.8
254.8
812.9
277.2
779.2
296.4
10
1016.0
209.4
995.2
215.7
960.6
228.3
934.3
243.0
891.8
257.3
839.9
279.5
801.1
299.4
11
1046.7
210.9
1025.4
217.5
990.0
230.7
959.5
245.2
925.3
259.2
870.1
281.7
832.5
302.3
12
1086.2
212.7
1062.3
219.4
1022.4
232.9
993.0
247.4
954.8
261.4
897.5
284.1
862.4
305.0
13
1115.0
214.3
1092.0
221.2
1053.7
235.0
1021.1
249.4
983.8
263.4
927.5
286.6
889.5
307.7
14
1151.7
215.9
1127.1
223.0
1086.0
237.2
1056.0
251.4
1013.8
265.7
957.0
289.1
921.0
310.4
15
1185.3
217.8
1159.8
224.8
1117.3
239.0
1086.6
253.3
1047.1
267.6
986.1
291.5
941.6
313.0
5
899.8
217.4
886.6
224.4
864.6
238.4
842.8
254.8
820.0
270.6
759.4
297.6
723.2
318.2
6
941.2
220.2
926.2
226.8
901.2
240.2
879.8
257.0
858.6
273.0
796.2
300.0
758.8
321.0
7
983.6
222.2
966.6
229.0
938.4
242.6
916.2
259.6
900.0
276.0
832.4
302.8
792.0
323.6
8
1024.4
224.2
1006.0
231.0
975.2
244.8
956.0
262.2
933.4
278.2
866.6
305.2
826.4
326.0
9
1066.2
226.2
1045.8
233.2
1011.8
247.4
994.4
264.8
966.2
280.8
899.8
308.0
860.0
329.0
10
1107.0
228.8
1085.6
235.8
1050.0
249.8
1029.2
266.8
997.0
283.2
931.4
310.6
892.0
331.8
11
1149.2
231.4
1126.0
238.4
1087.4
252.4
1064.8
269.2
1033.8
285.6
966.4
313.4
926.0
334.8
12
1193.4
233.6
1167.8
240.6
1125.0
254.6
1102.6
271.8
1069.2
288.2
1001.8
316.0
961.4
337.4
13
1232.4
235.8
1206.4
242.8
1163.0
256.8
1140.8
274.2
1103.4
290.6
1036.2
318.6
995.8
340.4
14
1271.4
237.6
1245.4
244.8
1202.0
259.2
1179.8
276.4
1139.6
293.4
1071.4
321.6
1030.6
343.4
15
1301.8
240.2
1277.8
247.2
1237.8
261.4
1211.2
278.8
1175.8
295.8
1105.8
324.2
1063.8
346.0
18
M Type Air Cooled Screw Chiller
M Type Air Cooled Screw Chiller
DIMENSION
(1)LSBLGCW360A units
(2)LSBLGCW450A units
471
471
2370
2370
19
729
DN125
2181
3730
DN125
DN125
1228
2180
4730
2226
2280
2226
2280
DN125
20
M Type Air Cooled Screw Chiller
M Type Air Cooled Screw Chiller
(3)LSBLGCW600 unit
(4)LSBLGCW720 units
Axial fan
Shell-and-tube
heat exchanger
2430
Control box
610
Hoisting hole
1100
DN125
Chilled water inlet
DN150
Chilled water inlet
Chilled water outlet
DN125
2755
4275
5700
7425
Copper-fin heat
exchanger
Compressor
2260
2280
Chilled water outlet
DN150
2626
2400
21
2280
22
M Type Air Cooled Screw Chiller
M Type Air Cooled Screw Chiller
(5)LSBLGCW800 units
610
610
2430
(6)LSBLGCW900 units
2430
23
Chilled water outlet
DN150
Chilled water inlet
DN150
4710
3080
8425
Chilled water inlet
DN150
5710
Chilled water outlet
DN150
3080
9425
2260
2260
2280
2280
24
M Type Air Cooled Screw Chiller
M Type Air Cooled Screw Chiller
INSTALLATION BASEMENT
（1）LSBLGCW360A unit
150
3730
2060
A
700
5700
790
150
150
（3）LSBLGCW600 unit
150
1950
1890
C
B
B
A
Control box
Control box
Foundation
Foundation
bolt M14
Foundation
bolt M14
Weight to be supported by spring isolator（kg）
Model
A
B
C
D
896
864
896
864
A
LSBLGCW600
（2）LSBLGCW450A unit
890
B
C
D
E
F
930
780
890
930
780
（4）LSBLGCW720A unit
150
4730
1630
530
2070
1505
A
150
7425
1180
1800
2570
150
LSBLGCW360A
D
150
Weight to be supported by spring isolator（kg）
Model
E
F
D
150
C
Unit bottom
2165
2165
2280
Unit bottom
2280
Foundation
C
B
A
B
C
D
E
F
G
H
Control box
Control box
Foundation
Foundation
Unit bottom
D
Foundation
bolt M14
2180
2280
Foundation
bolt M14
2280
Unit bottom
2165
F
E
150
25
Weight to be supported by spring isolator（kg）
Model
LSBLGCW450A
Weight to be supported by spring isolator（kg）
A
B
C
D
E
F
854
857
554
854
857
557
Model
LSBLGCW720A
A
897
B
C
D
E
F
885
862
856
897
885
G
862
H
856
26
27
M Type Air Cooled Screw Chiller
M Type Air Cooled Screw Chiller
（5）LSBLGCW800A unit
8425
1570
1180
A
1800
B
2570
C
150
893
Installation Requirements:
150
D
E
1. Be sure to take the base preparation and structure into consideration seriously during installation,
especially avoid the intensity and noise of floor when the machine is installed on the top storey of
buildings. It is recommended to discuss with the building designer before conducting installation.
Control box
2180
Foundation
bolt M14
2280
Foundation
Unit bottom
2. The surrounding of the base shall be equipped with drainage ditch and make sure it can dewatering
freely for convenient in drain.
3. Anti-vibration pad shall be placed between the base frame and fundation in order to avoid
F
G
H
I
J
transmitting vibration and noise during the runtime of the unit, and make sure the unit is aclinic during
installation.
Weight to be supported by spring isolator（kg）
Model
A
B
595
854
C
D
E
F
G
865
859
852
595
854
H
I
J
865
859
Unit bottom
LSBLGCW800A
852
Unit bottom
（6）LSBLGCW900A unit
Spring shock absorber
1800
A
B
150
9425
1500
1500
C
1800
D
1800
150
410
Rubber pad
E
Steel Plate
(thickness ≥ 5mm)
Foundation
F
Control box
Foundation
Foundation
Foundation
bolt M14
G
H
I
J
K
2280
2180
Unit bottom
L
Notes:
1) When adopting the fixing method as shown in Figure 2, reserve the space for the anchor bolt hole
for installing shock absorber.
Weight to be supported by spring isolator（kg）
Model
LSBLGCW900A
A
B
C
D
E
583
857
872
863
571
F
854
2) When adopting the fixing method as shown in Figure 1, reserve the space for the mounting hole of
G
H
I
J
K
L
583
857
872
863
571
854
the anchor bolt on the base frame according to the position of the mounting hole in installation drawing.
28
29
M Type Air Cooled Screw Chiller
M Type Air Cooled Screw Chiller
CONSTRUCTION
INSTALLATION SPACE
1
2
3
m
.0
＞1
m
1.0
1
Electric control cabinet
2
Start up cabinet
3
Condenser
4
Compressor
5
Evaporator
＞
＞1
.8m
＞1
.8m
.0m
＞1
5
4
1
＞1
.8m
2
.0m
＞1
＞1
3
1 Electric control cabinet
2 Condenser
.8m
3 Evaporator
＞1
.8m
4 Compressor
m
1.0
＞
4
30
31
M Type Air Cooled Screw Chiller
M Type Air Cooled Screw Chiller
PLC CONTROLLER
PLC controller
Midea LSBLGCW chiller adopts PLC controller which enables the user to
monitor and control the chiller with high-class accuracy. PLC control system
Multiple self-protecting functions
guarantees high precision and stability. The control system is module-designed,
High/low pressure protection
Guarantee the Comp. running in the right range and its lifespan
easy for installation and maintenance. The chiller which reserved with RS485
Power lack phase protection
Protect Comp. from damage under such situation of lack phase and anti-phase
port can be interfaced with BAS (Building Automation system). The remote
Anti-freeze protection under cooling mode
Protect the copper pipes of evaporator from damage due to water freeze
Frequent startup protection
Protect Comp. from getting burned by the overheated winding due to frequent startup
Over current protection of Comp.
Protect Comp. from getting burned due to too heavy current
Overheat protection of compressor
Protect Comp. from damage due to lack of refrigerant or lubricant oil
Water flow protection
Protect Comp. from getting burned due to failure of heat-exchange
Reverse protection controller(APRS)
Guarantee the comp. motor running in the right direction
monitoring and control of the chiller is possible.
Color touchable screen
The display of control regulation and operating parameters, diagnostics, and error messages is a 7 inch, 65636
colors TFT displayer with 800 X 480 distinguish ability. The screen can display error codes, settings of various
set points, specified temperature and pressure values, and the status of operating parameters and options.
Power-down memory function
When power-down, the chiller will maintain preceding running mode and
parameter set point.
Weekly operation scheduling
The user can set the chiller operation schedule in the weekly timetable to
run and stop the chiller automatically. If sudden power down happens,
the chiller will not restart until manual reset.
Data acquisition & Storing
Max. 256 records of latest alarms and 500 seconds chilled/cooling water temperature trend display.
3-class passwords
3-class passwords are for the user, for Installation and for the Debugging technician of factory. Unauthorized
access to the control is protected with random-generated password.
Self-Diagnosis
Self-diagnosis is always performed before start-up to enable safe operation. Only all the requirements get
satisfied，the chiller will start.
Multiple self-protecting functions guarantee the safety of unit and running perfectly.
Y-Δ start up cabinet—standard model
1）Structure simple and reliable
2）Starting current is only 200-300% of full load current
3）Lower voltage start up can effectively protect the motor
32
M Type Air Cooled Screw Chiller
M Type Air Cooled Screw Chiller
FIELD WIRING DIAGRAM
APPLICABLE RANGE
Content
Running range
Ambient TEMP.
T1 Condition:15℃～43℃
Out water TEMP.
5℃～15℃
Water flow volume
Rating flow volume±20%
Max inlet/outlet water TEMP. difference
8℃
Voltage tolerance
Rating Voltage±10%
Phase tolerance
±2％
Power supply frequency
Rating frequency±2%
Evaporator max working pressure on water side
1.0MPa
Compressor max. start count
4 times/h
Environment quality
High corrosive environment and high humidity should be avoid.
Drainage system
The height of water drainage should not be higher than the base
of the unit on the spot
Cooling run output
Indication
Alarm
Pump
Multi-units
communication
interface
Flow switch
Remote Stop
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Remote Start
PE
TYPICAL WATER PIPING LAYOUT
N
Automatic Watering
L3 L2 L1
To Drain
ExpansionTank
Power Range
Model
Compressor
Main
power
Highest
Lowest
Quantity
Start
current/A
Highest
running
current/A
Collector
ELECTRIC PARAMETER TABLE
Distributer
33
Fan
Rated
current/A
Rated
power/kW
Fan
quantity
Rate of
fan/RPM
Rated
current/A
Highest
running
current/A
Stop Valve
V
Hz
LSBLGCW360A
380/400
50
+10%
-10%
1
586
228
207.2
113
6
940
5.6
261.6
LSBLGCW450A
380/400
50
+10%
-10%
1
650
296
243.3
138
8
940
5.6
340.8
LSBLGCW600
380/400
50
+10%
-10%
1
805
340
290
166
10
940
5.5
395
LSBLGCW720A
380/400
50
+10%
-10%
2
Refer to 360A
12
940
5.6
523.2
LSBLGCW800A
380/400
50
+10%
-10%
2
Refer to 360A+450A
14
940
5.6
602.4
LSBLGCW900A
380/400
50
+10%
-10%
2
Refer to 450A
16
940
5.6
681.6
Pressure Gauge Water Flow Switch
Y-Shaped Filter Thermometer
Water Pump
3-Way Valve
Check Valve
Air Vent
Soft Joint
Drain valve
34