1 to 120 Horsepower Air
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Drake Refrigeration Chiller
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PWC Scroll Series Capacity Table
Drake Model
Compressor
LWT ºF
105º COND TEMP
Drake Model
Compressor
LWT ºF
105º COND TEMP
TONS
KW
EER
TONS
KW
EER
18S
ZB15K
42.0
1.7
1.6
12.8
24S
ZB19K
42.0
2.2
2.0
12.9
44.0
1.8
1.6
13.3
44.0
2.2
2.0
13.5
45.0
1.8
1.6
13.6
45.0
2.3
2.0
13.8
50.0
2.0
1.6
15.0
50.0
2.5
2.0
15.2
55.0
2.2
1.6
16.7
55.0
2.8
2.0
16.9
60.0
2.4
1.6
18.1
60.0
3.0
2.0
18.6
27S
ZB21K
42.0
2.4
2.2
13.0
30S
ZB26K
42.0
3.0
2.7
13.0
44.0
2.5
2.2
13.6
44.0
3.1
2.7
13.6
45.0
2.6
2.2
13.9
45.0
3.2
2.7
13.9
50.0
2.8
2.2
15.3
50.0
3.5
2.7
15.4
55.0
3.1
2.2
17.2
55.0
3.8
2.7
17.1
60.0
3.4
2.2
19.0
60.0
4.2
2.7
18.8
36S
ZB30K
42.0
3.5
3.2
13.0
48S
ZB38K
42.0
4.3
3.9
13.4
44.0
3.6
3.2
13.6
44.0
4.5
3.9
13.9
45.0
3.7
3.2
13.9
45.0
4.6
3.9
14.2
50.0
4.1
3.2
15.4
50.0
5.1
3.9
15.7
55.0
4.5
3.2
17.2
55.0
5.6
3.8
17.4
60.0
4.9
3.1
18.9
60.0
6.1
3.7
19.0
60S
ZB45K
42.0
5.1
4.7
13.2
70S
ZB56K
42.0
6.2
6.0
12.5
44.0
5.3
4.7
13.7
44.0
6.5
6.0
13.0
45.0
5.4
4.7
14.0
45.0
6.7
6.0
13.3
50.0
5.9
4.7
15.2
50.0
7.3
6.0
14.5
55.0
6.6
4.8
16.6
55.0
8.0
6.0
16.0
60.0
7.2
4.8
17.9
60.0
8.8
6.1
17.5
80S
ZB68K
42.0
7.6
7.2
12.6
90S
ZB75K
42.0
8.8
8.2
12.8
44.0
7.9
7.2
13.2
44.0
9.2
8.2
13.4
45.0
8.1
7.2
13.4
45.0
9.4
8.2
13.7
50.0
8.9
7.2
14.7
50.0
10.3
8.2
15.0
55.0
9.8
7.2
16.4
55.0
11.3
8.2
16.6
60.0
10.7
7.2
17.9
60.0
12.4
8.2
18.1
120S
ZB92K
42.0
10.8
10.3
12.6
180S
ZB11M
42.0
13.4
12.1
13.4
44.0
11.3
10.3
13.1
44.0
13.9
12.1
13.8
45.0
11.5
10.4
13.4
45.0
14.2
12.1
14.1
50.0
12.7
10.4
14.6
50.0
15.3
12.1
15.3
55.0
14.0
10.5
16.1
55.0
16.9
12.1
16.8
60.0
15.3
10.6
17.4
60.0
18.3
12.1
18.1
250S
ZR250K
42.0
18.9
16.5
13.7
300S
ZR300K
42.0
22.8
19.4
14.1
44.0
19.5
16.6
14.1
44.0
23.6
19.4
14.5
45.0
20.0
16.6
14.4
45.0
24.3
19.5
14.9
50.0
21.4
16.7
15.4
50.0
26.6
19.8
16.2
55.0
23.7
16.9
16.8
55.0
28.7
20.1
17.1
60.0
25.6
17.1
18.0
60.0
30.8
20.4
18.2
1. Capacities on this chart are based on refrigerant 22.
Low ambient or lower leaving water temperatures can require the use of a
glycol solution or other fluid blends. These solutions affect unit
capacities. Please consult the factory on these or other special fluids.
2. kW input is for compressor(s) only.
3.
EER = Energy Efficiency Ratio (BTU/watt-hour). Power inputs include
compressor(s), condenser fan motor(s) and control power
