Screw Air Source Heat Pump

1242354

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This series of screw air source heat pump is for cooling and heating with fan coil unit or air handling unit. If you have any preference of the compressor brand, please inform. If there is any different requirement other than the standard product, please inform, will have customization upon request.

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Unique design, less investmentModular design suitable for bigger application area, automatic energy output adjustment as per actual load requirement.Multi parallel connection, multi steps start by sequence, minimize starting current, safe to electricity grid. rewqrew
Fully-automatic controlThe operation and management of this unit are controlled by microcomputer system. It is easy to operate. The units turn on/off the compressor automatically according to the load, making the units operate on the point of the most economical and energy saving. And there are complete protective functions such as error self-protection system and anti-freezing automatically in winter. 234234 432

Intelligent defrosting

Each circuit is separate to the others in refrigerant system, and each system operation is controlled independently.  The parameters can be set for automatic defrosting according to the different climatic conditions (temperature and humidity), defrost is thorough and energy-saving, increasing the heating efficiency. And the defrosting has no significant influence to the indoor air-conditioning temperature.     

Intelligent anti-freezing

This unit adopts anti-freezing automatic dual-class protection, preventing the water system being damaged once the refrigerant freezing at winter. The anti-freezing protection can be quitted automatically when the water temperature is increased according to the operation of heating or pump.

Convenient operation

Each unit is strictly tested. All the protective parameters is set.  It is ready for application right after the power supply and water pipe is connected.

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1. Heat recovery for domestic hot water

2. Water flow switch  

3. PLC controller

4. R407C refrigerant  

5. For any other feature, please contact us for customization 

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Table 1

Model

BMN250L

BMN300L

BMN350L

BMN400L

BMN450L

BMN520L

Cooling capacity

KW

247

297

346

401

450

523

Heating capacity

KW

265

323

368

393

462

509

Power supply

380V/3Ph/50Hz (60Hz)

Energy steps

25%~100%

25%~100%

25%~100%

25%~100%

25%~100%

25%~100%

Cooling power input

KW

86.2

97.5

109.9

119.5

143.3

154.5

Heating power input

KW

84.1

95.2

107.3

114.2

139.9

151.1

Compressor start current

A

220

252

270

380

440

480

Start Method

Y-△

Y-△

Y-△

Y-△

Y-△

Y-△

Compressor

Type

Semi hermetic screw compressor

Power input

KW

77.4

84.3

97.4

106.3

125.7

136.9

Oil charge amount

L

15

20

23

23

28

28

Refrigerant type

R134a

R134a

R134a

R134a

R134a

R134a

Refrigerant amount

kg

65

80

90

105

120

150

Expansion valve type

Thermal expansion valve

Axial condensing fan

Quantity

Nos.

4

6

6

6

8

8

Power input

KW

2.2

1.5

2.2

2.2

1.5

2.2

Air flow rate

m3/h

104000

126000

156000

156000

168000

208000

Shell & tube evaporator

Chilled water inlet

12

12

12

12

12

12

Chilled water outlet

7

7

7

7

7

7

Water flow rate

m3/h

42.5

51.1

59.5

69.0

77.4

90.0

Water pressure drop

kPa

45

46

48

65

55

66

Connection pipe size

DN

100

125

125

125

150

150

Dimension

L

2550

3340

3640

3640

4330

4730

W

2206

2206

2206

2206

2206

2206

H

2465

2465

2465

2465

2465

2465

Net weight

Kg

2450

2950

3200

3420

4150

4520

Noise

dB(A)

80

79

81

82

81

82

Table 2

Model

BMN600L

BMN700L

BMN800L

BMN900L

BMN1050L

Cooling capacity

KW

594

692

802

900

1046

Heating capacity

KW

646

736

786

924

1018

Power supply

380V/3Ph/50Hz (60Hz)

Energy steps

25%~100%

25%~100%

25%~100%

25%~100%

25%~100%

Cooling power input

KW

195

219.8

239

286.6

309

Heating power input

KW

190.4

214.6

228.4

279.8

302.2

Compressor start current

A

252

270

380

440

480

Start Method

Y-△

Y-△

Y-△

Y-△

Y-△

Compressor

Type

Semi-hermetic screw compressor

Power input

KW

2×97.4

2×97.4

2×106.3

2×125.7

2×136.9

Oil charge amount

L

2×20

2×23

2×23

2×28

2×28

Refrigerant type

R134a

R134a

R134a

R134a

R134a

Refrigerant amount

kg

2×80

2×90

2×105

2×120

2×150

Expansion valve type

Thermal expansion valve

Axial condensing fan

Quantity

Nos.

12

12

12

16

16

Power input

KW

1.5

2.2

2.2

2.2

2.2

Air flow rate

m3/h

252000

312000

312000

416000

416000

Shell & tube evaporator

Chilled water inlet

12

12

12

12

12

Chilled water outlet

7

7

7

7

7

Water flow rate

m3/h

102.2

119.0

137.9

154.8

179.9

Water pressure drop

kPa

50

55

65

58

68

Connection pipe size

DN

150

150

200

200

200

Dimension

L

6670

7270

8650

9450

9450

W

2206

2206

2206

2206

2206

H

2465

2465

2465

2465

2465

Net weight

Kg

6020

6480

6900

8360

9050

Noise

dB(A)

82

83

84

84

85

Notes:

1.Standard cooling work condition: Ambient Temp: DB 35 ℃, WB 24 ℃; cooling water inlet 12 ℃, outlet 7 ℃.

2.  Standard heating work condition: Ambient Temp: DB 7 ℃, WB 6 ℃; heating water inlet 40 ℃, outlet 45 ℃.

3.  The noise data is measured on the average of 1m far away from the unit.
4.  Reserve the right to change the parameter without prior notice.  
5.  Water side max. bearing pressure: 1.0 MPa.


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