Instruction Manual

Screw Compressor Central Chiller Chapter 7: Appendix 71
Typical Two-Circuit 60-195 Ton Remote Water Cooled Chiller Specifications
Model
SCW-xxx
60
75
90
100
Cooling Capacity (tons) @ 50°F LWT"
60.4
74.9
88.8
102.2
Capacity stages
Infinite Unloading
EER (BTUH/W)
15.2
15.1
15.7
15.5
Nominal water flow (gpm)
Evaporator#
145
180
213
245
Condensers$
181
225
266
307
Condenser connection (no manifold) Flange Conn. (in.)
2.5
3
Evaporator manifold connection Victaulic
3
4
Amp draw, nameplate
(460/3/60 V)%
Water-cooled
112
130
138
170
Dimensions (in.)
Height
85
77
Width
100
115
Depth
45
72
Shipping weight (lbs.)
3,266
3,512
4,336
4,982
Max operating weight (lbs.)
3,468
3,754
4,594
5,246
" Based on 50ºF (10ºC) chilled water supply temperature and 85ºF (29ºC) tower water.
# Based on 2.4 gpm per ton (9.1 lpm per 3.517 kW), 2.9 gpm/ton (11 lpm per 3.517 kW) for glycol/water mixes.
$ Based on availability of 85ºF (29ºC) tower water at 25 psi (172.4 kPa/1.7 bars) minimum. 3 gpm/ton.
% Multiply 460/3/60 amperage by 2.0 for 208-230/3/60 amperages; multiply by 1.2 for 380/3/60 amperages; multiply by 0.8 for
575/3/60 amperages
Model
SCW-xxx
115
145
165
195
Cooling Capacity (tons) @ 50°F LWT"
116.3
146.0
166.3
193.1
Capacity stages
Infinite Unloading
EER (BTUH/W)
15.5
16.2
15.9
16.2
Nominal water flow (gpm)
Evaporator#
279
350
399
463
Condensers$
349
438
499
579
Condenser connection (no manifold) Flange Conn. (in.)
3
4
Evaporator manifold connection Victaulic
4
6
Amp draw, nameplate
(460/3/60 V)%
Water-cooled
216
250
282
316
Dimensions (in.)
Height
77
81
Width
115
130
Depth
72
76
Shipping weight (lbs)
5,298
8,844
9,376
9,580
Max operating weight (lbs.)
5,584
9,428
10,102
10,364
" Based on 50ºF (10ºC) chilled water supply temperature and 85ºF (29ºC) tower water.
# Based on 2.4 gpm per ton (9.1 lpm per 3.517 kW), 2.9 gpm/ton (11 lpm per 3.517 kW) for glycol/water mixes.
$ Based on availability of 85ºF (29ºC) tower water at 25 psi (172.4 kPa/1.7 bars) minimum. 3 gpm/ton.
% Multiply 460/3/60 amperage by 2.0 for 208-230/3/60 amperages; multiply by 1.2 for 380/3/60 amperages; multiply by 0.8 for
575/3/60 amperages