20 hp, 25 hp, and 30 hp Air-Cooled Portable Chillers

Nominal operating parameters for air-cooled models are 50ºF (10ºC) leaving water temperature at 2.4 gpm per ton (9.1 lpm per 3.517 kW) with 95ºF (35ºC) ambient air. For 50 Hz applications, multiply capacity by 0.83. Nominal 60 Hz capacity flow rate must be maintained.

 

Nominal cooling

Water

Com-

Nom.

 

 

Power in amps e, 460/3/60 f

HP

capacity c tons

flow

pressor

pump

Discharge air

1 pump

2 pumps

 

no pump

1 pump

2 pump

gpm d

hp

hp

openings

cfm g

rated

running

rated

running

20

19.4

18.4

18.0

46.5

2 @ 10

5

25” x 18.5”

10,200

48.3

42.0

51.4

45.1

25

23.9

22.8

22.4

57.2

2 @ 13

5

25” x 18.5”

13,300

62.1

48.3

65.2

51.4

30

29.2

28.2

27.8

70.2

2 @ 15

5

25” x 18.5”

18,150

74.1

64.4

77.2

67.5

cBased on 50ºF (10ºC) chilled water supply temperature and 95ºF (35ºC) ambient air. Optional additional process

pump hp reduces chiller capacity by 0.2 tons per hp (0.703 kW ref. cap. per 0.746 kW pump power).

dBased on 2.4 gpm per ton (9.1 lpm per 3.517 kW), nominal 1 pump.

eAn optional oversized process pump adds to the total rated or running chiller amperage. To find the new total chiller amperage, subtract the standard process pump amperage from the optional pump amperage (see Figure 1

on page 16), and add it to the chiller rated or running amperage.

fMultiply 460/3/60 amperage by 2.0 for 208-230/3/60 amperages; multiply by 0.8 for 575/3/60 amperages. g To convert cfm to cmh, multiply by 1.699.

20 hp, 25 hp, and 30 hp air-cooled portable chillers come standard with 4” (101 mm) swivel casters.

 

Com-

Process connections, in. NPT

Dimensions

 

Weights

 

HP

pressor

1 Pump

2 Pump

no pump,

1 pump, no

in inches c

 

Dry d

Ship. d

Oper. d e

 

hp

to/from

to/from

no tank

tank,

height

width

 

depth

lbs.

lbs.

 

lbs.

 

 

 

 

 

to/from

 

 

 

 

 

 

 

 

20

2 @ 10

2” / 3”

2.5” / 3”

2.0”

2” / 3”

91.4

34.0

 

100.7

2,305

2,605

 

2,971

25

2 @ 13

2” / 3”

2.5” / 3”

2.0”

2” / 3”

91.4

34.0

 

100.7

2,348

2,648

 

3,014

30

2 @ 15

2” / 3”

2.5” / 3”

2.0”

2” / 3”

91.4

34.0

 

100.7

2,610

2,910

 

3,276

cTo convert to cm, multiply by 2.54. Add to height dimension based on mounting options.

dWeight is for standard chiller. Some optional features will increase weight. Multiply lbs. by 0.454 to calculate Kg. e Operating weight is with a full 80-gallon (303 liter) reservoir tank of water.

2-40 HP Portable Chillers

Chapter 7: Appendix

48 of 78