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Water-cooled Package Unit

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N-50B-1305-02

R410A

50BM/BF008~020

50BL025~080Water-cooled Package UnitCooling capacity: 23~252 kW

1 2

Carrier ChinaCarrier is a subsidiary of United Technologies Corporation (UTC), an American company. In 2011, UTC ranked 150th in the Fortune Global 500. Its businesses include architecture, aerospace and other industries everywhere around the world. From the time Dr. Carrier invented the first set of scientific air conditioning system in 1902, Carrier’s products and system solutions have been the first choice for famous architectures worldwide. In 2011, Carrier’s sales volume reached $12 billion, holding the first place in the industry. With a sales network in over 170 countries, the company is now the biggest manufacturer of Heating, Ventilating and Air Conditioning (HVAC) equipment.

Carrier has more than 2500 employees in China and over 60 sales and after-sale service organisations nationwide. As a global manufacturer, Carrier boasts many world-leading production lines of machine units and compressors. Its production includes commercial and domestic central air-conditioning units and airends. Rich product categories can cater for clients’ various demands. Located in Shanghai, the International Research & Development Center can develop major R&D projects at the same time, thereby assisting Carrier with patent technologies that far exceed the competitors in the industry.

Nomenclature table

Plant No. THC: Shanghai Tonghui Carrier

Product design No. 0: original design2: second design revision (R410A refrigerant)

packaging type of units0: plastic wrap films (008-040 only)1: wooden crate (030-080)

optional equipment0: standard unit

external static pressure (see attachment)L : standard static pressureM : medium static pressureH : high static pressure

power9: 380V-3ph-50Hz

product series50: water-cooled package units

model reference no.1: standard unit (electronic control)

model letterBM : 008-020 upward outletBF : 008-020 front-direction outletBL : 025-080 upward outlet

unit specification008：23kW010：30kW015：46.5kW020：57kW025：81.4kW

030：97.7kW040：126kW050：162.8kW060：196.5kW080：252kW

Attachment

Cooling capacity

23.0~252kW

In 1999, Dr. Carrier was selected as one of the 20 “Builders & Titans” by the Time 100 (the 20th century).

008 010 015 020 025 030 040 050 060 080

L : standard static pressureBF 0 0 0 0 / / / / / /

BM/BL 100 100 120 120 180 180 180 180 180 180M : medium static pressure BM/BL 180 180 200 200 250 250 250 300 300 250H : high static pressure BM/BL / 250 300 300 350 350 350 500 450 350

3 4

Wide application scope: Wide options and flexible application:

Various industrial and commercial buildings

Ten specifications of 50BL/BM/BF units can be used in shopping malls,

restaurants, supermarkets, factories, offices and so on.

The requirements for air conditioning system vary in different industries

and various sized places. Carrier’s WCPU can meet clients’ special

demands to the great extent.

For heating during winter, WCPU can configure electric heaters with

different powers for the owner. If boiler system is equipped, the units

can provide heating in winter with the flexible application of hot

water coils.

WCPU is designed to solve clients’ practical difficulties and offer

reasonable solutions: it can also provide the clients with more optional

accessories and non-standardised designs according to applicable

sites; it can reset the position and direction of water inlet and outlet

pipelines based on practical pipeline system; it can also adjust the

external static pressure upon the project request.

Regular routine maintenance on units shall be carried out in order to

guarantee stable and efficient operation of air conditioning units.

Carrier’s WCPU is equipped with well-selected parts and optimally

designed unit structures, which brings great convenience to routine

maintenance. Clients can also manage routine operation and

maintenance of units without professional refrigeration engineers.

The design of air delivery transmission also facilitates maintenance.

Wind wheels for transmission and belts are replaceable on site based

on practical situations. Fan motor is fixed on a special adjustable lever,

so rather than dismantling the whole motor, it can be allocated to the

best position for maintenance by regulating the lever.

Carrier’s WCPU makes clients’ maintenance much easier with

detachable filters. It is especially true in textile industry as the efficiency

of daily filter cleaning becomes greatly improved.

For plants, continuous manufacturing requires a stable air-conditioning

system which comes from quality units. Customers can build up “stable

and reliable” confidence with the reliable operation, innovative

technologies and energy-saving of Carrier’s water-cooled package

units (WCPU).

Large commercial air-conditioning units require a machine room for

installation while Carrier’s water-cooled package unit can be put directly

in the spacious places such as workshops of a plant or shopping malls.

No additional specialised room is needed. The owner can purchase

units in batches according to real situation, thus saving initial

investment cost. We become the optimal choice for medium- and

small-sized plants. In addition, the application of the units only

demands simple interior projects; during the indoors installation of units,

only inlet and outlet water pipes and simple air pipes are the only things

to be equipped. The temperature of every area can be controlled

without terminals. Therefore, the cost of indoors air-conditioning

projects shall be decreased.

Investment cost economy:

Reliable units:

High operation efficiency of units:

In terms of operation efficiency, WCPU is far higher than air-cooled

package units (ACPU). The energy efficiency ratio (EER) of WCPU can

be as high as 3.8~4.1 while that of ACPU with the same specification

can only reach 2.5~2.6. Under the same operation condition, WCPU

can cut operating cost, over 50% less than that of ACPU, thus

dramatically saving the owner’s expenses.

Convenient routine maintenance:

5 6

Technical Specifi cation50BM/BF008, 010, 015, 020

unit 008 010 015 020

Standard static pressure

50BM Pa 100 100 120 120

50BF Pa 0 0 0 0

Cooling capacity kW 23 30 46.5 57

Input power kW 5.60 7.40 11.40 14.50

medium static pressure

50BM Pa 180 180 200 200

Cooling capacity kW 23 29.7 46.3 57

Input power kW 5.60 7.60 11.60 15.00

High static pressure

50BM Pa / 250 300 300

Cooling capacity kW / 29.5 46 57

Input power kW / 7.80 11.90 16.00

compressor

Type Scroll

Quantity 1 1 2 3

Power kW 4.50 5.80 4.5×2 3.7×3

Evaporimeter

Model Copper pipes and aluminium fi ns

Model Extension type

Quantity 1 1 2 2

Standard cooling water fl ow (suggestive value)

m³/h 4.7 6.0 9.4 13.0

Water standard pressure drop kPa 50.4 69 61.2 42

Refrigerating fl uid

Working medium R410A

Throttling method capillaries

Charging volume kg 2.2 4 2.2X2 2.0X3

Air volume Standard air volume m³/h 4080 5400 8100 10800

Unit noise dB(A) 56 59.2 61 63.5

Filter Material nylon nylon nylon nylon

Quantity…Dimensions mm 1…886×610 1…1177×610 1…1183×916 2…775×916

Piping dimensions

Condenser water inlet 1-1/4''FPT 1-1/4''FPT 2''FPT 2''FPT

Condenser water outlet 1-1/4''FPT 1-1/4''FPT 2''FPT 2''FPT

Condensed water outlet 1''FPT 1''FPT 1''FPT 1''FPT

Chassis drainage 1/2''FPT 1/2''FPT 1/2''FPT 1/2''FPT

External dimensions

mm 1600/2100 1600/2100 1850/2251 1850/2251

Width mm 1090 1340 1490 1740

Depth mm 540 540 750 750

Operating weight (BF/BM) kg 250/260 310/320 385/405 520/530

Note: 1. Working condition of refrigeration test: inlet air temperature of evaporimeter = : 27°C DB / 19°C WB, outlet water temperature of condenser = 30°C / 35°C 2. FPT stands for internal thread while MPT stands for external thread.

Technical Specifi cation50BL025, 030, 040, 050, 060, 080

unit 25 30 40 50 60 80

Standard static pressure

50BL Pa 180 180 180 180 180 180

Cooling capacity kW 81.4 97.7 126 162.8 196.5 252

Input power kW 20.1 25.5 32.7 42.2 50.7 68.1

Medium static pressure

50BL Pa 250 250 250 300 300 250

Cooling capacity kW 81.1 97.3 125.5 161.7 195.2 251

Input power kW 20.9 25.9 33.9 43.3 52.7 69.8

High static pressure

50BL Pa 350 350 350 500 450 350

Cooling capacity kW 80.6 96.5 124.5 158.5 194.1 249

Input power kW 21.2 26.3 34.7 45 53.8 72.2

Compressor

Type Scroll

Quantity 2 2 3 3 4 5

Power kW 8X2 8.8+10.5 8X2+8.8 10.5X3 8.8X2+10.5X2 10.5X5

Evaporimeter Model Copper pipes and aluminium fi ns

Condenser

Model Extension type

Quantity 1 1 1 1 1 1

Standard cooling water fl ow (suggestive value)

m³/h 17.3 20.9 27.9 34.6 42 56.2

Water standard pressure drop kPa 57.9 69 58 59.5 62.3 64

Refrigerating fl uid

Working medium R410A

Throttling method capillaries

Charging volume kg 5.0X2 4.6+5.2 4.4+4.2+3.9 5.5X3 5.0+5.5+5.0+5.5 5.9X5

Air volume Standard air volume m³/h 13500 16200 21600 27000 32400 43200

Unit noise dB(A) 64.7 65.5 66.8 70 72.1 75.2

FilterMaterial nylon nylon nylon nylon nylon nylon

Quantity…Dimensions mm 6…583X515 6…583X515 8…583X515 15…573X493 15…573X493 18…573X493

Piping dimensions

Condenser water inlet 2-1/2''FPT 2-1/2''FPT 3''FPT 2-1/2''FPT 4'FPT 4'FPT

Condenser water outlet 2-1/2''FPT 2-1/2''FPT 3''FPT 2-1/2''FPT 4''FPT 4''FPT

Condensed water outlet 1-1/2''MPTX2 1-1/2''MPTX2 1-1/2''MPTX2 1-1/2''MPTX2 1-1/2''MPTX2 1-1/2''MPTX2

Chassis drainage 3/4''FPT 3/4''FPT 3/4''FPT 3/4''FPT 3/4''FPT

External dimensions

Height mm 1890 1890 1890 1900 1900 1900

Width mm 1800 1800 2200 2600 2600 3100

Depth mm 1150 1150 1150 1600 1600 1600

Operating weight kg 710 780 950 1780 2110 2500

Note: 1. working condition of refrigeration test: inlet air temperature of evaporimeter = : 27°C DB / 19°C WB, outlet water temperature of condenser = 30°C / 35°C 2. FPT stands for internal thread while MPT stands for external thread.

Height (BM/BF)

7 8

Dimensions Dimensions

50BM008, 010

50BF008,010

4-Ø10.5mm mounting hole

1"FPTcondensed water outlet (both sides)

1-1/4"FPTcondenser outlet (both sides)

1-1/4"FPTcondenser inlet (both sides)

Ø28.6mm power line hole (both sides)

Ø28.6mm control line hole (both sides)

Top view

Top view

Left view Front view Right view Left view Front view Right view

1/2"FPT chassis drainage (both sides) control box

fan motor

control box

Top viewTop view

Left view Front view Right view Left view Front view Right view


1-1/4"FPTcondenser outlet (both sides)

1-1/4"FPTcondenser inlet (both sides)

Ø28.6mm power line hole (both sides)

Ø28.6mm control line hole (both sides)

1/2"FPT chassis drainage (both sides)

A400

100 100 100 G

C 35

54034

0

260

170

130

B

14-Ø5.1mm 30 100H 100 15

1600

6015

3

141

2705

16 9041

8

619


A

B

30

260

130

540

35

2100

418

619

90153

60

16

141

270

530


2"FPTcondenser outlet (both sides)

2"FPTcondenser inlet (both sides)

Ø51mm power line hole (both sides)

Ø26mm control line hole (both sides)


control box

control box




2"FPTcondenser outlet (both sides)

2"FPTcondenser inlet (both sides)

Ø51mm power line hole (both sides)

Ø26mm control line hole (both sides)


50BM015, 020

50BF015, 020

9 10

Right view

Dimensions

50BL025, 030

50BL040

air filterservice clearance

(either side)

4-Ø14mm mounting hole

Top view

Front view

Top view

Front view

Right view

control box

control box

3/4"FPT (2) chassis drainage (rear side)

3/4"FPT (2) chassis drainage (rear side)

1-1/2"MPT (2) condensed water outlet

(reverse side)

1-1/2"MPT (2) condensed water outlet

(reverse side)

3"FPT (2) condenser water outlet (both sides)

3"FPT (2) condenser water inlet (both sides)

3/4"MPT chassis drainage (both sides)

J (2) FPT condensed water outlet (both sides)

J (2) FPT condensed water inlet (both sides)

air filterservice clearance

(either side)

Ø90mm power line hole (reverse side)

Ø25mm control line hole (reverse side)

2-1/2"MPT condenser water outlet (both sides)

2-1/2"MPT condenser water inlet (both sides)


Ø25mm control line hole (reverse side)

air filter service clearance (either side)

4-Ø14mm mounting hole

1-1/2"MPT condensed water outlet (both side)

service clearance for fan shaft

4-15×30 mounting hole

Top view

Front view Right view

control boxØ25mm control line hole

(reverse side)


Performance parameters50BM/BF008

air volume of evaporimeter

Wet bulb temperature of

inlet air

Condenser outlet water temperature °C

30.0 35.0 37.0 40.0 45.0

m3/h °C TC SHC kW TC SHC kW TC SHC kW TC SHC kW TC SHC kW

324017.0 21.4 18.9 5.0 20.4 18.5 5.2 20.1 18.4 5.3 19.5 18.1 5.7 18.7 17.8 6.019.0 23.2 16.2 5.1 22.3 15.7 5.5 21.9 15.6 5.5 21.4 15.4 5.8 20.4 15.0 6.222.0 25.0 13.4 5.3 24.2 13.1 5.7 23.8 12.9 5.8 23.2 12.7 6.0 22.2 12.3 6.3

408017.0 22.1 21.4 5.0 21.2 21.0 5.3 21.0 20.9 5.4 20.4 20.4 5.6 19.7 19.7 6.119.0 24.0 18.0 5.2 23.0 17.2 5.6 22.7 17.5 5.7 22.1 17.3 5.9 21.2 16.9 6.422.0 26.0 14.6 5.4 25.0 14.3 5.8 24.6 14.1 5.9 24.0 13.9 6.1 22.9 13.6 6.5

4912

17.0 23.1 23.1 5.1 22.2 22.2 5.4 22.0 22.0 5.7 21.6 21.6 5.7 20.8 20.8 6.219.0 24.6 19.7 5.2 23.5 19.3 5.7 23.3 19.1 5.8 22.6 18.9 6.0 21.5 18.5 6.4

22.0 26.7 15.7 5.5 25.7 15.3 5.8 25.0 15.2 6.0 24.5 14.9 6.1 23.4 14.7 6.6

50BM/BF010



inlet air


30.0 35.0 37.0 40.0 45.0


432017.0 27.9 25.6 6.6 26.7 25.1 7.0 26.2 24.8 7.0 25.7 24.5 7.4 24.3 23.9 7.819.0 30.4 21.6 6.8 29.1 21.2 7.2 28.6 21.0 7.2 27.9 20.7 7.6 26.6 20.2 8.122.0 33.0 17.8 6.9 31.6 17.4 7.3 31.0 17.2 7.5 30.2 16.9 7.8 29.0 16.4 8.3

540017.0 28.9 28.8 6.7 27.9 27.9 7.2 27.5 27.5 7.2 26.9 26.9 7.5 25.9 25.9 7.919.0 31.3 24.1 6.9 30.0 23.7 7.4 29.6 23.4 7.3 28.8 23.1 7.7 27.4 22.6 8.222.0 33.8 19.5 7.1 32.6 19.0 7.6 32.0 18.8 7.6 31.0 18.5 7.9 29.8 18.0 8.5

648017.0 30.4 30.4 6.8 29.4 29.4 7.3 28.9 28.9 7.3 28.2 28.2 7.6 27.2 27.2 8.219.0 32.0 26.4 6.9 30.6 25.8 7.5 30.0 25.6 7.4 29.4 25.4 7.8 27.9 24.7 8.322.0 34.6 20.9 7.1 33.2 20.4 7.7 32.6 20.3 7.7 32.0 20.0 8.0 30.3 19.5 8.5

50BM/BF015



inlet air


30.0 35.0 37.0 40.0 45.0


648017.0 43.0 37.6 10.3 41.1 36.9 10.9 40.5 36.6 11.2 39.6 36.1 11.6 37.7 35.3 12.319.0 46.7 32.2 10.6 44.9 32.5 11.2 44.3 31.2 11.6 43.0 30.8 12.0 41.1 30.0 12.822.0 50.6 26.8 11.0 48.7 26.0 11.7 48.0 25.8 12.0 46.9 25.3 12.3 44.9 24.6 13.1

810017.0 44.6 42.1 10.6 42.9 41.4 11.1 42.0 41.1 11.3 41.0 40.6 11.7 39.8 39.8 12.519.0 48.6 35.6 10.8 46.5 34.9 11.4 45.5 34.6 11.8 44.5 34.1 12.2 42.4 33.3 12.922.0 52.4 29.1 11.1 50.5 28.3 11.8 49.5 28.1 12.1 48.1 27.6 12.5 46.1 26.9 13.4

972017.0 46.5 46.5 10.7 44.8 44.8 11.2 44.4 44.4 11.6 43.5 43.5 12.0 41.8 41.8 12.919.0 49.5 38.7 10.8 47.5 38.0 11.5 46.7 37.7 11.8 45.5 37.3 12.3 43.4 36.5 13.122.0 53.6 31.1 11.2 51.4 30.4 11.9 50.7 30.2 12.2 49.4 29.7 12.6 47.1 29.0 13.4

50BM/BF020



inlet air


30.0 35.0 37.0 40.0 45.0


864017.0 52.9 47.8 12.8 50.6 46.8 13.7 50.0 46.4 14.3 48.7 45.8 14.8 46.3 44.9 15.419.0 57.7 40.7 13.3 55.1 39.8 14.2 54.5 39.4 14.8 52.7 38.8 15.1 50.4 37.8 15.922.0 62.5 33.6 14.2 59.8 32.7 14.7 58.9 32.3 15.4 57.2 31.7 15.6 54.9 30.8 16.3

1080017.0 55.1 54.2 13.2 53.0 53.0 14.2 52.2 52.2 14.4 51.0 51.0 14.9 49.0 49.0 15.719.0 59.5 45.4 13.5 57.0 45.1 14.5 55.9 44.4 15.0 54.6 43.5 15.4 52.0 42.5 16.222.0 64.5 36.7 14.0 61.8 35.8 14.9 60.7 35.5 15.4 59.0 34.9 15.8 56.5 33.9 16.7

1296017.0 57.8 57.8 13.4 55.7 55.7 14.3 54.8 54.8 15.0 53.6 53.6 15.1 51.7 51.7 16.119.0 60.9 49.7 13.6 58.5 48.7 14.8 57.4 48.3 15.2 55.8 47.6 15.6 53.1 46.7 16.422.0 65.9 39.6 14.3 63.1 38.6 15.1 62.2 38.3 15.8 60.4 37.7 15.9 57.6 36.7 16.8

TC-total cooling capacity(kW) kW-total power input(kW) SHC-sensible heat production(kW)

11 12

Performance parameters50BL050



inlet air


30.0 35.0 37.0 40.0 45.0


21600

17.0 121.4 139.1 30.0 145.2 136.6 40.1 142.9 135.6 41.6 139.2 133.9 43.2 133.2 131.3 45.2

19.0 130.6 118.0 30.7 157.1 115.6 41.3 155.2 114.5 42.8 151.4 113.0 44.2 144.6 110.5 46.6

22.0 141.1 96.9 32.7 170.4 94.5 42.6 167.6 93.5 44.5 164.7 91.9 45.6 156.9 89.4 47.4

27000

17.0 125.1 158.7 30.5 153.3 153.5 41.8 151.2 151.2 42.5 148.8 148.8 44.3 143.5 143.5 46.7

19.0 134.5 131.4 31.1 162.8 128.8 42.2 159.8 127.8 43.7 155.7 112.6 44.7 148.8 123.6 47.2

22.0 145.8 105.8 32.2 176.3 103.3 43.3 173.4 102.3 44.8 168.7 100.8 46.1 161.4 98.2 48.6

32400

17.0 133.7 166.3 31.6 161.6 161.1 42.4 159.4 159.4 44.5 155.6 155.6 44.7 149.8 149.8 47.6

19.0 137.4 143.8 31.2 165.9 141.3 42.8 163.1 140.3 44.1 159.0 138.7 45.3 151.6 136.1 47.6

22.0 148.4 114.2 32.8 179.8 111.7 43.8 176.5 110.7 45.7 171.9 109.2 46.1 164.3 106.6 48.7

50BL060



inlet air


30.0 35.0 37.0 40.0 45.0


25800

17.0 182.6 169.2 44.9 175.4 166.2 48.3 172.5 165.0 50.0 169.0 163.1 52.2 163.2 159.9 55.1

19.0 198.4 143.3 46.5 190.9 140.4 49.9 187.6 139.2 51.5 182.8 137.5 53.2 175.9 134.4 56.4

22.0 214.4 117.4 49.4 206.2 114.6 51.3 203.9 113.5 53.9 198.5 111.7 54.7 190.9 108.9 57.3

32400

17.0 193.5 193.5 47.0 187.3 187.3 50.8 184.8 184.4 51.6 181.9 181.9 53.9 175.5 175.5 56.8

19.0 205.0 161.0 47.1 196.5 158.2 50.7 194.3 156.9 52.8 189.5 155.0 54.1 180.9 151.9 57.1

22.0 221.1 129.2 48.6 213.0 126.4 52.0 209.5 125.3 53.9 205.2 123.5 55.8 196.6 120.5 58.9

39000

17.0 203.4 203.4 47.8 197.8 197.8 51.6 195.2 195.2 54.2 190.7 190.7 54.6 183.7 183.7 58.1

19.0 209.1 178.1 47.3 202.0 175.1 51.9 198.5 173.7 53.4 193.2 171.9 54.7 184.7 168.8 57.7

22.0 226.3 140.6 49.7 217.3 137.8 52.7 215.0 136.6 55.4 209.5 134.7 55.9 200.0 131.8 59.0

50BL080



inlet air


30.0 35.0 37.0 40.0 45.0


34800

17.0 232.8 208.7 57.5 225.5 205.5 62.3 223.2 204.3 65.0 217.9 202.3 67.6 210.9 198.7 71.5

19.0 252.2 177.4 59.3 245.4 174.3 64.5 241.0 173.1 66.5 236.9 171.2 69.2 228.6 167.8 73.7

22.0 272.5 146.1 63.1 263.8 143.2 65.9 260.7 141.9 69.2 255.9 140.1 70.8 246.6 136.8 74.4

43200

17.0 241.2 235.1 58.8 234.1 231.8 63.9 230.5 205.2 64.8 230.2 230.2 68.6 224.2 224.2 72.9

19.0 260.5 197.3 60.2 252.0 194.3 68.1 248.7 193.0 67.9 244.6 191.0 70.2 235.7 187.6 74.8

22.0 280.7 159.3 62.0 272.6 156.3 66.9 268.5 155.3 69.4 263.1 153.2 71.9 254.9 150.1 76.8

50400

17.0 253.7 253.7 59.9 246.9 246.9 64.7 244.1 244.1 68.1 241.1 241.1 69.3 233.9 233.9 74.4

19.0 265.1 213.7 60.2 256.6 210.6 66.2 254.2 209.2 68.7 249.1 207.2 70.9 239.6 203.8 75.3

22.0 286.3 170.3 63.2 277.2 167.2 67.5 273.1 166.2 70.7 268.9 164.1 72.1 259.2 161.0 76.9

TC-total cooling capacity(kW) kW-total power input(kW) SHC-sensible heat production(kW)

Performance parameters50BL025



inlet air


30.0 35.0 37.0 40.0 45.0


10800

17.0 75.6 70.1 17.9 72.6 68.8 19.0 71.3 68.3 19.0 69.5 67.5 20.0 66.5 66.2 21.3

19.0 82.1 59.5 18.4 78.8 58.1 19.5 77.5 57.6 19.5 75.5 56.8 20.6 72.1 55.5 22.0

22.0 88.5 13.4 18.5 85.5 47.4 19.8 83.9 46.9 20.3 81.8 46.1 21.1 78.2 44.9 22.4

13500

17.0 80.0 21.4 18.5 77.3 77.3 19.9 76.2 76.2 20.0 74.5 74.5 20.8 72.1 72.1 22.0

19.0 84.8 18.0 18.7 81.4 65.2 20.1 79.8 64.7 19.7 77.7 63.9 20.8 74.1 62.6 22.2

22.0 91.7 14.6 19.3 87.9 52.1 20.5 86.4 51.6 20.5 84.1 50.9 21.4 80.3 49.6 22.9

16200

17.0 84.0 23.1 18.8 81.5 81.5 20.2 80.4 80.4 20.3 78.4 78.4 21.1 75.3 75.3 22.7

19.0 86.4 19.7 18.6 82.9 72.0 20.3 81.4 71.5 20.1 79.2 70.7 21.0 75.7 69.3 22.5

22.0 93.4 15.7 19.2 89.6 56.7 20.8 88.0 56.2 20.8 85.7 55.4 21.4 82.2 54.1 23.1

50BL030



inlet air


30.0 35.0 37.0 40.0 45.0


12900

17.0 90.5 82.2 22.5 87.4 80.6 24.3 85.5 80.0 25.1 83.7 79.0 26.2 79.9 77.4 27.3

19.0 98.3 69.9 23.3 94.4 68.4 25.0 93.4 67.7 26.0 90.9 66.8 26.8 86.9 65.2 28.2

22.0 106.7 57.5 24.9 102.3 56.1 25.7 101.2 55.4 27.1 98.7 54.5 27.5 94.3 53.0 28.7

16200

17.0 94.3 93.4 23.2 92.3 92.3 25.4 91.1 91.1 25.8 89.1 89.1 26.7 85.7 85.7 28.1

19.0 102.1 78.3 23.8 97.7 76.7 25.5 96.3 76.0 26.5 93.7 75.1 27.1 89.0 73.5 28.4

22.0 109.9 63.2 24.5 105.9 61.6 26.2 104.2 61.0 27.1 101.5 60.1 27.9 97.3 58.5 29.5

19500

17.0 100.6 100.6 23.9 97.2 97.2 25.7 95.7 95.7 26.9 94.1 94.1 27.3 90.6 90.6 29.0

19.0 104.3 86.3 23.9 100.1 84.6 26.0 98.4 84.1 26.8 95.8 83.1 27.5 91.4 81.5 28.9

22.0 112.9 68.5 25.1 108.1 66.9 26.5 106.4 66.3 27.7 103.6 65.4 28.0 98.9 63.9 29.6

50BL040



inlet air


30.0 35.0 37.0 40.0 45.0


17400

17.0 117.5 104.7 29.1 113.3 103.0 31.4 111.5 10.4 32.6 109.3 101.0 34.0 105.4 99.4 35.8

19.0 126.4 89.1 29.8 122.8 87.4 32.4 120.9 86.7 33.5 118.7 85.8 34.8 113.7 83.9 36.7

22.0 136.6 73.3 31.7 132.8 71.7 33.3 130.8 71.1 34.8 127.7 70.1 35.5 123.0 68.3 37.2

21600

17.0 121.1 117.9 29.6 117.03 116.1 32.0 115.4 116.3 32.5 116.3 112.8 34.7 112.8 112.8 36.8

19.0 130.2 98.8 30.2 126.0 97.2 32.7 124.3 96.5 34.1 121.5 95.4 34.9 117.2 93.6 37.3

22.0 141.1 79.8 31.3 136.5 78.2 33.6 134.2 77.5 34.8 131.3 76.6 36.0 126.1 74.8 38.1

25800

17.0 129.4 129.4 30.6 125.7 125.7 33.1 124.3 124.3 34.8 122.1 122.1 35.2 118.1 118.1 37.7

19.0 133.0 108.1 30.3 128.6 106.6 33.3 126.6 104.8 34.3 124.5 104.8 35.5 119.4 103.0 37.6

22.0 143.7 86.1 31.8 138.5 84.4 33.8 136.6 83.7 35.4 133.6 82.8 35.9 129.2 81.1 38.4

TC-total cooling capacity(kW) kW-total power input(kW) SHC-sensible heat production(kW) BF-bypass factor

13 14

Fan performance

Fan performance curve

Fan performance curve shall be made under two conditions: 1) no condensed water in coils; 2) the filter has been cleaned.The ordinate in the graph indicates static pressure. External static pressure of fans= Total static pressure with a given air volume - unit pressure drop (see fan performance curve).kW stands for output rating of fan motors. If the output is 1.5 kW, then air volume, total static pressure and speed range under 1.5 kW line will be within the range of application. The curve shall be used within the shown range.

50BM008 50BM010 50BM015

Impeller outer diameter: 316 mm Barometric pressure: 101.32 kPaGas density: 1.2kg/m3 Gas temperature: 20°C

Fan static pressure Pt (Pa) Rotate speed n (r/min)

Flow quantity Q (1000m3/h)Unit pressure drop (10Pa)Hot coil unit pressure drop (10 Pa)

Impeller outer diameter: 386 mm Barometric pressure: 101.32 kPaGas density: 1.2kg/m³ Gas temperature: 20°C






50BM020 50BL025 50BL030











50BL040 50BL050


Flow quantity Q (1000m³/h)Unit pressure drop (10Pa)Hot coil unit pressure drop (10 Pa)




Mot

or p

ower

(kW

)

Mot

or p

ower

(kW

)

Mot

or p

ower

(kW

)

Mot

or p

ower

(kW

)

Mot

or p

ower

(kW

)

Mot

or p

ower

(kW

)

Mot

or p

ower

(kW

)

Mot

or p

ower

(kW

)

Mot

or p

ower

(kW

)

Mot

or p

ower

(kW

)Flow quantity Q (1000m³/h)Unit pressure drop (10Pa)Hot coil unit pressure drop (10 Pa)






50BL060 50BL080

Fan performance

Fan performance curve

15 16

Calculation of condenser water-carrying capacity

Heating capacity of steam/hot water pipes

Water-carrying capacity shall be calculated by the following equation:

TC=total cooling capacity (kW)water temperature rise=outlet water temperature from the condenser (°C) - inlet water temperature from the condenser (°C)

water-carrying capacity (L/S) =4.186 × water temperature rise

TC+ compressor power (kW)

50BM/BL units centre-of-gravity position

PC starting contactor of water pumpST thermal protection of electrical heatingOLp overload protection of water pumpFS flow valveRS remote starting switchTB1 main power supply terminalTB2 control site terminal


Wiring diagram (electronic type)




Installation instruction of temperature controller

Heating capacity of steam coils

Connected to indoor unit

Hard PVC pipeline insideMinimum 30mm

Plaster as thick as about 30 mm

Room controller Wiring board

model 50BM/BF008 50BM/BF010 50BM/BF015 50BM/BF020 50BL025 50BL030 50BL040 50BL050 50BL060 50BL080

Air volume m3/h 4080 5400 8100 10800 13500 16200 21600 27000 32400 43200

Heating kW 44.0 62.8 98.8 133.7 139.5 168.8 226.7 284.9 325.6 418.6

Working condition of heating test : steam pressure=0.35kg/cm2, inlet air temperature=15.6°C

17 18

Key points of installation

Water pipe connection

Water-cooled package unit utilizes water as a refrigerant

of its condenser. Water routines become the circulating

system. Water temperature can be reduced in cooling

tower where evaporation happens. So new water must be

continuously added. To control new water volume, normally

a ball cock is used.

Notes

Water pump shall be installed in the compressor inlet to

reduce resistance in the suction casing of the pump. Pump

inlet shall be placed near pools or cooling towers. It is

advised to keep not too long suction tabulation.

Suction tabulation and compressor outlet are equipped

with maintenance valves. Pump outlet is equipped with

fl ow control valve. It is forbidden to adjust water fl ow with

pump inlet valve. All the valves should be chosen among

sluice valves, ball valves and plug valves.

To reduce and weaken vibration and noises, a soft

connecting pipe can be installed in the suction pipe and

blow-off pipe of the water pump.

Pressure gage and thermometer shall be installed in the

convenient places for monitoring and maintenance. If the

water pump uptakes water from lower water box, then the

pressure gage in the suction casing shall be replaced with

a vacuum gauge.

Water switches shall be installed within the pipes, avoiding

damages to the air conditioner.

When the unit is connected with cooling tower, certain

water pressure shall be kept. Water volume through the

cooling tower shall be stable. At the same time, water

volume through compressor shall be under control,

regardless of load and external temperature changes. So

the condensing pressure can be constant and wet-bulb

working condition of the condenser can be kept, which

guarantees the normal operation of thermostatic expansion

valve or other valves. A three way water regulating

valve (see below) can be applied to set the lowest outlet

temperature of the condenser at 18.3 °C. Bypass three

way control valve shall be greatly recommended because:

1) the condensing pressure can be constant without being

affected by external temperature; 2) and it is convenient to

undertake monitor and maintenance with a thermometer

at the condenser outlet.

Connected to air conditioner

Pressure three way water regulating valve

Maintenance valve

Cooling tower

Water switchCondensing pressure gathering

CondenserSquare spigot balance faucet

Pressure gage

Thermometer

Water pump

Demonstration of a water routine system

Water filter

Pressure gage

Cooling tower

Maintenance valve

Thermometer

Regulating valve

Once the cooling tower selected, its physical dimensions

shall be rechecked to confi rm whether current installation

conditions can be met. The bearing capacity of the fl oors

shall also be checked. Noise level of a working cooling

tower shall be stressed if local place has requirements on

environmental noise.

Cooling tower shall be located in the place where less

sunshine, ample air fl ow and no pollution (waste gas,

dusts, etc.) can be guaranteed. It is forbidden to set a

cooling tower near high-temperature air outlets such as

kitchen outlets.

New water needs to be added in the water circulating

system as cooling water continuously evaporates from the

cooling tower. Normally 1~3% of the circulating water shall

be added. The pipes for water supplement shall consider

the water level of the elevated water tank; if the level is

lower, a water pump can be applied, uptaking water twice

as much as water supplement.

How to keep water quality in the cooling water system is

an essential issue in the management of cooling tower.

The most effective water treatment method in practice is

chemical cleaning: cleaning agents and water softener

are periodically injected according to the water quality

and the quality should meet certain indicators. The quality

requirements of circulating water are: PH value=6.0-

8.0, turbidity≤5.0 mg/L, iron content ≤ 0.3 mg/L, and total

hardness CaCO3≤50ppm.

On the bottom of cooling tower, there shall be equipped

with make-up pipes and overfl ow pipes under automatic

control. Drain pipes on the bottom shall be connected with

sewers or near rain pipes.

A P-trap can be added onto the water discharge pipe to

block outside air from entering the evaporator, meanwhile,

make cooling water discharging easier. It can be installed

at anywhere of the pipe, at a position 5 cm lower than the

pipe which must have a thermal insulation layer against

condensing.

It is advised to install no more than two units if a single

cooling tower is working for several units. While one unit

is operating, unit compressor and the valve of water

supply pipe in the cooling tower shall be turned off in time,

otherwise some cooling water fl ows through compressor

and cooling tower. This will lead to water shortage in

compressor and increasing condensing pressure with

rising water temperature. In that case, refrigerating

capacity will be reduced.

Normally the air conditioner shall be lower than the cooling

tower.

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