COMMERCIAL AIR CONDITIONERS - Midea · PDF fileCOMMERCIAL AIR CONDITIONERS ... (DC inverter product/ Digital scroll product), ... scroll water chiller, water-cooled packaged unit,

MCAC-2012-39

COMMERCIAL AIR CONDITIONERS

2012

Commercial Air Conditioner Business UnitsMidea Air Conditioning and Refrigeration SectorAdd: West region of Midea commercial air conditioner department, Industry Avenue, Beijiao, Shunde, Foshan, Guangdong, P.R. China Postal code:528311Tel: +86-757-22394101 Fax: +86-757-26338003http://www.midea.com http://www.mideaaircon.com

M Type Air Cooled Screw Chiller

Corporate Introduction

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 Group

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.

04R410A (25kW-250kW) 50Hz07 M Type Air Cooled Screw Chiller

CONTENTS

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.

05

06

09

15

17

31

33

Nomenclature

Brief introduction

Mechanical components

Specification

Dimension

PLC controller

Field wiring diagram

06M Type Air Cooled Screw Chiller05 M Type Air Cooled Screw Chiller

NOMENCLATURE BRIEF INTRODUCTION

Compressor structure typeBLG Semi-hermetic screw comp.

Nominal cooling capacity (kW)

A: CE certification

Refrigerant type C R134a; Omit for R22

Water chiller

Air cooled condenser

LS BLG C W XXX A

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

to meet current and future requirements in terms of reliability, energy efficiency and

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.


FEATURES AND BENEFITS

Environmental Care■ 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.

Economical Operation Cost■ Extremely high full load and partial load energy efficiency. New twin-rotor screw compressor equipped

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.

PLC Technology Accuracy Control■ The sensors related to control and other assemblies are equipped by factory and strictly tested.

■ Intelligent control：The unit is controlled by micro-controller(PLC) with has the automatic control

functions of fault diagnosis, energy management and anti-freezing monitoring ensure the

high-efficiency operation and more convenient in use. The unit with RS485 open protocol

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.


Condenser■ Air cooled condenser coil consist of staggered rows of seamless inner

groove copper tube, mechanically expanded onto the die formed aluminum

fin to ensure optimum heat exchange capability.

■ Grooved condenser fin and tube condenser coils of seamless, internally

enhanced, high condensing coefficient, corrosion resistant copper tubes

arranged in staggered rows and mechanically bonded to corrosion resistant

aluminum alloy fins with full height fin collars.

Blue fin and black epoxy-coated aluminum fin are options.

Fan■ 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

maximum efficiency.

■ 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.

■ 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.

MECHANICAL COMPONENTS

Advanced Twin-Rotor Screw CompressorMidea® 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

processed by high-precision CNC and each part is well-proportioned and none-gap matching,

which minimizes the friction resistance and clearance lost, guarantees quiet running and good

duration.

The compressor motor is direct drive type with two poles to operate at 2960 rpm (50HZ) input

speed. It is non-reversing, squirrel cage induction type suitable for the voltage shown on the

equipment schedule. Compressors combined an balance piston with separated radial and axial

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

compressor is from SKF, Sweden gurantee the continuously runing more than 60,000 hours.

1

5 6 7 8

32 4

1 Suction cut-off valve

2 Solenoid valve

3 Discharge cut-off valve

4 Oil filter

5 Suction filter net

6 Motor

7 Oil heater

8 Oil separator filter net


■ Controls housed in a powder painted steel cabinet enclosure with

hinged, latched, and gasket sealed, door.

■ Liquid crystal 40 character display with text provided on two lines

and light emitting diode backlighting for outdoor viewing.

■ Color coded, 32 button, sealed keypad with sections for Display,

Entry, Set points, Clock, Print, Program and Unit On/Off.

■ Standard controls include: automatic pump down, run signal

contacts, demand load limit from external building automation system

input, unit alarm contacts, evaporator pump control, automatic reset

after power failure, automatic system optimization to match operating

conditions, software stored in non-volatile memory (EPROM) to

eliminate chiller failure due to AC power failure. Programmed setpoints

retained in lithium battery backed RTC memory for a minimum 5 years.

MICROPROCESSOR CONTROLS

Refrigerant Circuit■ Independent refrigerant circuit per compressor, each using

copper refrigerant pipe formed on computer controlled bending

machines. Less piping brazed joints result in a highly reliable and

leak resistant system.

■ 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.

EKC312

AKS

M MAKS

Throttling Device■ Famous brand electronic expansion valve which control by drive

module control.

■ The drive module controller controls the valve according to

evaporator suction superheat.

■ PID arithmetic control the open degree of the valve.

SOLENOID VALVE

TEMPERATURE SENSOR

SOLENOID VALVE

ELECTRONIC

FILTER DRIER

THERMAL EXPANSION VALVE

BALL VALVE

WATER INLETWATER OUTLET

CONDENSER

PRESSURE RELIEF VALVE

DUAL PRESSURE SWITCH

PRESSURE SENSOR

PRESSURE SENSOR

BALL VALVE

SIGHT GLASS

LOW PRESSURE GAUGE

DRAIN VALVE

HIGH PRESSURE GAUGE

TEMPERATURE SENSOR

EXPANSION VALVE

TEMPERATURE SENSOR

TEMPERATURE SENSORANTIFREEZING SWITCHTEMPERATURE SENSOR

COMPRESSOR

LOW PRESSURE SWITCH

ANGLE VALVE

ANGLE VALVE

EVAPORATOR

COMPRESSOR

B

K&B

Danfoss

B

K&B

Danfoss

B

K&B

Danfoss


OPTIONS APPEARANCE

■ 360kW / 100RT unit






WATER FLOW SWITCH ■ 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

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)

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

typical seashore locations.

POWER SUPPLY■ 415V-3P-50Hz

Note: For more application, please contact the local office.


LSBLGCW900A

902

278

2

122×2

16

23000×16

2.8×16

155

80

DN150

9425

2280

2430

8900

9200

LSBLGCW800A

810

251

2

80+122

14

23000×14

2.8×14

139

70

DN150

8425

2280

2430

7750

8050

LSBLGCW720A

729

227

2

80×2

12

23000×12

2.8×12

125

65

DN150

7425

2280

2430

6700

7000

380V/3P/50HzPower supply

Energy adjustable range%

Water side fouling factor（m2·°C/kW）

Semi- hermetic, twin screw compressor

25%,50%,75%,100% 4-steps ( 50%~100% stepless as option)

R134a

M type Heat exchanger, High efficient exchanger tube + Aluminum fins

Shell-and-tube heat-exchanger

0.086

Unit Model Descriptions

Cooling capacity kW

kW

Type

Quantity

Type

Charge（kg）

Type

Fans Quantity

Air Volume（m3/h）

Motor input（kW）

Type

Water Volume（m3/h）

Water pressure drop（kPa）

Inlet/outlet Pipe diameter（mm）

Length（mm）

width（mm）

height（mm）

Shipping weight（kg）

Running weight（kg）

Rated powerconsumption

Compressor

Refrigerant

Air Side Heat-exchanger

Water Side Heat-exchanger

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.

SPECIFICATION

LSBLGCW600

594

184

1

125

10

20000×10

1.8×10

102

60

DN125

5700

2280

2400

5000

5200

LSBLGCW450A

450

138

1

122

8

23000×8

2.8×8

77.4

55

DN125

4730

2280

2370

4325

4530

LSBLGCW360A

364

113

1

80

6

23000×6

2.8×6

62.6

50

DN125

3730

2280

2370

3320

3520

380-400V,3P+N+PE,50Hz Power supply

Energy adjustable range%

Water side fouling factor（m2·°C/kW）

Semi- hermetic, twin screw compressor

25%,50%,75%,100% 4-step ( 50%~100% stepless as option)

R134a

Reversed M sharp Heat exchanger. High efficient exchanger tube + aluminum fins

Shell-and-tube heat-exchanger

0.086 (m2.k/kW)

Unit Model Descriptions

Cooling capacity kW

kW

Type

Quantity

Type

Charge（kg）

Type

Fans Quantity

Air Volume（m3/h）

Motor input（kW）

Type

Water Volume（m3/h）

Water pressure drop（kPa）

Inlet/outlet Pipe diameter（mm）

Length（mm）

width（mm）

height（mm）

Shipping weight（kg）

Running weight（kg）

Rated powerconsumption

Compressor

Refrigerant

Air Side Heat-exchanger

Water Side Heat-exchanger

Dimension

1 Single compressor 2 Dual compressors

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.


CAPACITY TABLE

PowerInput/kW

126.8

128.1

129.4

130.9

131.9

133.5

134.9

136.3

137.5

138.7

140.0

　

159.1

160.5

161.8

163.0

164.5

165.9

167.4

168.7

170.2

171.7

173.0

202.0

202.4

203.2

203.0

203.6

204.1

204.5

204.8

205.4

206.3

207.2

CoolingCapacity

/kW

298.6

314.1

329.0

338.2

349.2

355.1

369.5

381.7

391.6

405.7

409.7

　

361.6

379.4

396.0

413.2

430.0

446.0

463.0

480.7

497.9

515.3

531.9

527.5

547.4

568.3

588.0

609.7

631.4

654.4

677.5

701.3

725.8

750.3

PowerInput/kW

118.9

120.0

121.2

122.5

123.2

124.2

125.0

126.1

127.3

128.3

129.4

　

148.8

150.0

151.4

152.6

154.0

155.3

156.7

158.0

159.3

160.8

162.1

194.0

194.4

195.1

195.3

195.7

196.0

196.8

197.6

198.2

198.7

199.1

CoolingCapacity

/kW

318.5

330.6

347.2

351.0

363.0

374.2

386.9

396.6

409.4

421.3

433.2

　

379.7

398.1

416.2

433.3

449.9

465.7

483.2

500.9

518.1

535.7

552.9

539.0

559.2

579.5

599.5

621.5

643.4

666.8

690.3

714.5

739.5

764.5

PowerInput/kW

111.0

111.9

113.0

114.0

114.4

115.7

116.4

117.3

118.1

119.0

119.7

　

135.3

136.5

138.0

139.1

140.4

141.6

142.8

144.1

145.3

146.7

147.9

183.0

183.4

184.1

185.2

185.7

186.1

186.5

186.8

187.4

188.2

189.0

CoolingCapacity

/kW

338.8

352.7

364.0

370.5

384.7

393.3

408.4

420.2

432.1

444.0

459.2

　

410.0

429.3

450.0

466.7

483.1

498.5

516.9

534.6

551.7

569.8

587.9

554.0

574.7

596.2

617.7

640.4

663.0

686.2

709.4

733.8

759.4

785.0

PowerInput/kW

105.4

106.4

107.4

108.2

108.8

109.6

110.6

111.5

112.3

113.2

113.9

　

127.4

128.5

129.8

131.1

132.4

133.4

134.6

135.9

137.1

138.2

139.4

163.5

164.0

164.0

165.2

165.8

166.3

166.6

166.9

167.4

168.3

169.1

CoolingCapacity

/kW

356.5

368.4

380.7

392.8

405.0

419.7

427.1

441.7

450.7

466.1

481.0

　

421.4

439.9

458.1

478.0

497.2

514.6

532.4

551.3

570.4

589.9

605.6

584.0

606.1

628.4

650.2

673.3

696.4

721.4

746.5

772.0

798.1

824.2

PowerInput/kW

98.6

99.9

100.6

101.7

102.6

103.4

104.5

105.6

106.6

107.6

108.3

　

119.2

120.1

121.3

122.4

123.7

124.9

126.2

127.3

128.4

129.6

130.7

151.5

152.1

152.2

153.0

153.5

154.0

154.4

154.8

155.2

155.7

156.1

CoolingCapacity

/kW

372.6

384.3

397.5

407.6

422.1

435.6

446.3

459.9

472.2

485.0

498.4

　

432.3

450.6

469.2

487.6

505.9

525.0

543.7

562.5

581.5

601.0

618.9

602.0

624.4

647.3

669.4

693.2

717.0

742.2

767.4

793.6

820.9

848.1

PowerInput/kW

93.8

94.6

95.5

96.4

97.1

97.8

98.3

99.1

99.8

100.6

101.2

　

112.2

113.4

114.5

115.5

116.6

117.9

119.2

120.3

121.4

122.4

123.6

140.5

141.0

141.1

142.1

142.7

143.2

143.5

143.8

144.1

144.2

144.3

PowerInput/kW

91.4

92.0

93.0

93.8

94.4

95.0

95.2

95.9

96.4

97.1

97.7

　

108.7

110.1

111.1

112.1

113.1

114.4

115.7

116.8

117.9

118.8

120.1

131.0

131.3

131.4

132.6

133.3

133.8

134.0

134.3

134.4

134.1

134.1

CoolingCapacity

/kW

388.0

400.5

415.0

426.4

439.4

452.4

462.4

478.4

488.8

504.4

520.9

　

443.3

463.1

483.3

503.0

522.9

542.8

563.0

583.9

603.2

622.7

638.9

619.5

642.4

665.1

687.5

711.8

736.1

761.7

787.2

813.8

841.5

869.2

CoolingCapacity

/kW

397.2

410.2

425.5

437.7

449.8

462.5

472.1

489.5

498.8

516.0

534.4

　

449.9

470.6

491.8

512.2

533.1

553.5

574.6

596.7

616.2

635.7

650.9

637.0

660.4

683.0

705.6

730.5

755.2

781.2

807.1

834.1

862.2

890.3

5

6

7

8

9

10

11

12

13

14

15

　

5

6

7

8

9

10

11

12

13

14

15

5

6

7

8

9

10

11

12

13

14

15

Model

LSBLGCW360A

　

LSBLGCW450A

LSBLGCW600

15 20 25 30 35 40 43

Ambient temperature/℃

OutletTemp.

/℃

PowerInput/kW

197.2

199.8

201.2

203.4

205.2

206.8

209.0

211.2

213.2

215.2

216.6

　

217.8

220.0

221.9

224.1

226.3

228.3

230.7

232.9

235.0

237.2

239.0

238.4

240.2

242.6

244.8

247.4

249.8

252.4

254.6

256.8

259.2

261.4

PowerInput/kW

210.8

212.8

214.8

216.4

217.6

219.2

221.2

223.0

224.6

226.4

227.8

　

232.8

234.9

237.2

239.3

241.2

243.0

245.2

247.4

249.4

251.4

253.3

254.8

257.0

259.6

262.2

264.8

266.8

269.2

271.8

274.2

276.4

278.8

PowerInput/kW

222.0

223.8

226.0

228.0

228.8

231.4

232.8

234.6

236.2

238.0

239.4

　

246.3

248.4

251.0

253.1

254.8

257.3

259.2

261.4

263.4

265.7

267.6

270.6

273.0

276.0

278.2

280.8

283.2

285.6

288.2

290.6

293.4

295.8

PowerInput/kW

237.8

240.0

242.4

245.0

246.4

248.4

250.0

252.2

254.6

256.6

258.8

　

267.7

270.0

272.6

275.1

277.2

279.5

281.7

284.1

286.6

289.1

291.5

297.6

300.0

302.8

305.2

308.0

310.6

313.4

316.0

318.6

321.6

324.2

PowerInput/kW

253.6

256.2

258.8

261.8

263.8

267.0

269.8

272.6

275.0

277.4

280.0

　

285.9

288.6

291.2

293.9

296.4

299.4

302.3

305.0

307.7

310.4

313.0

318.2

321.0

323.6

326.0

329.0

331.8

334.8

337.4

340.4

343.4

346.0

CoolingCapacity

/kW

745.2

768.6

795.0

815.2

844.2

871.2

892.6

919.8

944.4

970.0

996.8

　

804.9

834.9

866.7

895.2

928.0

960.6

990.0

1022.4

1053.7

1086.0

1117.3

864.6

901.2

938.4

975.2

1011.8

1050.0

1087.4

1125.0

1163.0

1202.0

1237.8

CoolingCapacity

/kW

713.0

736.8

761.4

785.6

810.0

839.4

854.2

883.4

901.4

932.2

962.0

　

777.9

808.3

838.8

870.8

902.2

934.3

959.5

993.0

1021.1

1056.0

1086.6

842.8

879.8

916.2

956.0

994.4

1029.2

1064.8

1102.6

1140.8

1179.8

1211.2

CoolingCapacity

/kW

677.6

705.4

728.0

741.0

769.4

786.6

816.8

840.4

864.2

888.0

918.4

　

748.8

782.0

814.0

837.2

867.8

891.8

925.3

954.8

983.8

1013.8

1047.1

820.0

858.6

900.0

933.4

966.2

997.0

1033.8

1069.2

1103.4

1139.6

1175.8

CoolingCapacity

/kW

637.0

661.2

694.4

702.0

726.0

748.4

773.8

793.2

818.8

842.6

866.4

　

698.2

728.7

763.4

784.3

812.9

839.9

870.1

897.5

927.5

957.0

986.1

759.4

796.2

832.4

866.6

899.8

931.4

966.4

1001.8

1036.2

1071.4

1105.8

CoolingCapacity

/kW

597.2

628.2

658.0

676.4

698.4

710.2

739.0

763.4

783.2

811.4

819.4

　

660.2

693.5

725.0

751.4

779.2

801.1

832.5

862.4

889.5

921.0

941.6

723.2

758.8

792.0

826.4

860.0

892.0

926.0

961.4

995.8

1030.6

1063.8

PowerInput/kW

187.6

189.2

191.0

192.8

194.2

195.6

196.6

198.2

199.6

201.2

202.4

　

206.0

208.0

210.0

211.9

213.7

215.7

217.5

219.4

221.2

223.0

224.8

224.4

226.8

229.0

231.0

233.2

235.8

238.4

240.6

242.8

244.8

247.2

PowerInput/kW

182.8

184.0

186.0

187.6

188.8

190.0

190.4

191.8

192.8

194.2

195.4

　

200.1

202.1

204.1

205.9

207.5

209.4

210.9

212.7

214.3

215.9

217.8

217.4

220.2

222.2

224.2

226.2

228.8

231.4

233.6

235.8

237.6

240.2

CoolingCapacity

/kW

776.0

801.0

830.0

852.8

878.8

904.8

924.8

956.8

977.6

1008.8

1041.8

　

831.3

863.6

898.3

929.4

962.3

995.2

1025.4

1062.3

1092.0

1127.1

1159.8

886.6

926.2

966.6

1006.0

1045.8

1085.6

1126.0

1167.8

1206.4

1245.4

1277.8

CoolingCapacity

/kW

794.4

820.4

851.0

875.4

899.6

925.0

944.2

979.0

997.6

1032.0

1068.8

　

847.1

880.8

917.3

949.9

982.9

1016.0

1046.7

1086.2

1115.0

1151.7

1185.3

899.8

941.2

983.6

1024.4

1066.2

1107.0

1149.2

1193.4

1232.4

1271.4

1301.8

5

6

7

8

9

10

11

12

13

14

15

　

5

6

7

8

9

10

11

12

13

14

15

5

6

7

8

9

10

11

12

13

14

15

Model

LSBLGCW720A

　

LSBLGCW800A

LSBLGCW900A

15 20 25 30 35 40 43

Ambient temperature/℃

OutletTemp.

/℃


DIMENSION23

70

471

3730

DN1252181729

DN125 DN125

(1)LSBLGCW360A units (2)LSBLGCW450A units

228022262280

2226

4730

2180

DN125

1228

2370

471


(4)LSBLGCW720 units

2430

610

7425

2280

2260

4275 2626

DN150Chilled water outlet

DN150Chilled water inlet

(3)LSBLGCW600 unit

Chilled water inlet

DN125

Chilled water outletDN125

Axial fan

Control box

Shell-and-tube heat exchanger

Hoisting hole

5700

1100 2755

Copper-fin heat exchanger

Compressor

2280

2400


(6)LSBLGCW900 units

9425

2260

2280

30805710

2430

610



(5)LSBLGCW800 units



8425

2280

2260

4710

2430

610

3080


（3）LSBLGCW600 unit

（4）LSBLGCW720A unit

150

150

Unit bottom

Foundation bolt M14

Control box

150

150 1890 1950790

2280

2165

5700

DE

ABC

F

Foundation

1505 1180 1800 2570

2280

2180

150

7425 150

Foundation

Unit bottom

Control box

Foundation bolt M14

A B C D

E F G H

LSBLGCW720A 897 885 862 856 897 885 862 856

A B C D E F G HModel

Weight to be supported by spring isolator（kg）

LSBLGCW600 890 930 780 890 930 780

A B C D E FModel




INSTALLATION BASEMENT

LSBLGCW360A 896 864 896 864

A B C DModel


LSBLGCW450A 854 857 554 854 857 557

A B C D E FModel


150

150

3730

Unit bottom

Foundation bolt M14

Control boxFoundation

2165

7002060

2280

DC

A B

150

150

4730

1630

Unit bottom

Foundation bolt M14

Control box

Foundation

2280

2165

5302070

FD

CA

E

B


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.

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

transmitting vibration and noise during the runtime of the unit, and make sure the unit is aclinic during

installation.

Notes:1) When adopting the fixing method as shown in Figure 2, reserve the space for the anchor bolt hole

for installing shock absorber.

2) When adopting the fixing method as shown in Figure 1, reserve the space for the mounting hole of

the anchor bolt on the base frame according to the position of the mounting hole in installation drawing.

Unit bottom

Foundation

Spring shock absorber

Unit bottom

Steel Plate (thickness ≥ 5mm)

Rubber pad

Foundation

Installation Requirements:


LSBLGCW800A

A B C D E F G H I JModel


595 854 865 859 852 595 854 865 859 852

LSBLGCW900A

A B C D E F G H I J K LModel


583 857 872 863 571 854 583 857 872 863 571 854

410 1800 1500 1500 1800 180022

8015

0

2180

9425 150

Foundation

Unit bottom

Control box

A B C D E F

G H I J K L

Foundation bolt M14


893

8425

2280

150

Foundation

Unit bottom

Foundation bolt M14

Control box

1570 1180 1800 2570

2180

150

A E

F J

B C D

G H I


INSTALLATION SPACE CONSTRUCTION

1 Electric control cabinet

2 Start up cabinet

3 Condenser

4 Compressor

5 Evaporator

1 Electric control cabinet

2 Condenser

3 Evaporator

4 Compressor

4 5

1 32

1

4

32

＞1.0m

＞1.0m

＞1.8m

＞1.8m

＞1.8m

＞1.8m

＞1.8m

＞1.0m

＞1.0m

＞1.0m


Guarantee the Comp. running in the right range and its lifespan

Protect Comp. from damage under such situation of lack phase and anti-phase

Protect the copper pipes of evaporator from damage due to water freeze

Protect Comp. from getting burned by the overheated winding due to frequent startup

Protect Comp. from getting burned due to too heavy current

Protect Comp. from damage due to lack of refrigerant or lubricant oil

Protect Comp. from getting burned due to failure of heat-exchange

Guarantee the comp. motor running in the right direction

High/low pressure protection

Power lack phase protection

Anti-freeze protection under cooling mode

Frequent startup protection

Over current protection of Comp.

Overheat protection of compressor

Water flow protection

Reverse protection controller(APRS)

Multiple self-protecting functionsPLC controllerMidea LSBLGCW chiller adopts PLC controller which enables the user to

monitor and control the chiller with high-class accuracy. PLC control system

guarantees high precision and stability. The control system is module-designed,

easy for installation and maintenance. The chiller which reserved with RS485

port can be interfaced with BAS (Building Automation system). The remote

monitoring and control of the chiller is possible.

Color touchable screenThe 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 functionWhen power-down, the chiller will maintain preceding running mode and

parameter set point.

Weekly operation schedulingThe 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 & StoringMax. 256 records of latest alarms and 500 seconds chilled/cooling water temperature trend display.

3-class passwords3-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-DiagnosisSelf-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.

PLC CONTROLLER

Y-Δ start up cabinet—standard model1）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


FIELD WIRING DIAGRAM

ELECTRIC PARAMETER TABLE

ModelMain power

Power Range Compressor Fan

261.6

340.8

395

523.2

602.4

681.6

5.6

5.6

5.5

5.6

5.6

5.6

6

8

10

12

14

16

940

940

940

940

940

940

1

1

1

2

2

2

-10%

-10%

-10%

-10%

-10%

-10%

+10%

+10%

+10%

+10%

+10%

+10%

Hz

50

50

50

50

50

50

V

380/400

380/400

380/400

380/400

380/400

380/400

LSBLGCW360A

LSBLGCW450A

LSBLGCW600

LSBLGCW720A

LSBLGCW800A

LSBLGCW900A

Refer to 360A

Refer to 360A+450A

Refer to 450A

113

138

166

207.2

243.3

290

228

296

340

586

650

805

Highest running current/ARated

current/ARate of fan/RPM

Fan quantity

Rated power/kW

Rated current/A

Highest running

current/A Start

current/A Quantity LowestHighest

N

L1L2L3

PE

Ala

rm

Coo

ling

run

outp

ut

Indi

catio

n

Flow

sw

itch

Rem

ote

Sto

p

Rem

ote

Sta

rt

5 6 7 8 9 10 17 184321

Mul

ti-un

its

com

mun

icat

ion

inte

rface

11 12 13 14 15 16

Pum

p TYPICAL WATER PIPING LAYOUT

APPLICABLE RANGE

Running range

T1 Condition:15℃～43℃

5℃～15℃

Rating flow volume±20%

8℃

Rating Voltage±10%

±2％

Rating frequency±2%

1.0MPa

4 times/h

High corrosive environment and high humidity should be avoid.

The height of water drainage should not be higher than the base of the unit on the spot

Content

Ambient TEMP.

Out water TEMP.

Water flow volume

Max inlet/outlet water TEMP. difference

Voltage tolerance

Phase tolerance

Power supply frequency

Evaporator max working pressure on water side

Compressor max. start count

Environment quality

Drainage system

Dis

trib

uter

Col

lect

or

Automatic Watering

To Drain

ExpansionTank

Stop Valve Pressure Gauge Water Flow Switch 3-Way Valve Soft Joint

Y-Shaped Filter Thermometer Water Pump Check Valve Air Vent Drain valve

Documents

COMMERCIAL AIR CONDITIONERS - Midea · PDF fileCOMMERCIAL AIR CONDITIONERS ... (DC inverter product/ Digital scroll product), ... scroll water chiller, water-cooled packaged unit,