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CH-K Series: 20, 40, 50, 60, 80, 100 Cooling with Standard Heating Capacities
Specifications
|
| Model |
CH-K |
30 |
40 |
50 |
60 |
80 |
100 |
| Cooling |
Capacity (Btu/hr x 103) |
360 |
480 |
600 |
720 |
960 |
1200 |
| Chilled Water Temp. (°F) |
44.6 Outlet, 54.5 Inlet |
| Heating |
Capacity (Btu/hr x 103) |
293 |
391 |
488 |
586 |
781 |
976 |
| Hot Water Temp. (°F) |
131.0 Outlet, 122.9 Inlet |
| Chilled/Hot Water |
Rated Water Flow (gpm) |
72.6 |
96.8 |
121.0 |
145.2 |
193.5 |
241.9 |
| Evap. Press. Drop (psi) |
10.1 |
12.5 |
14.1 |
|
Water retention volume (gal) |
18.0 |
23.0 |
29.0 |
34.0 |
64.0 |
81.0 |
| Cooling Water |
Heat Rejection (Btu/hr x 103) |
653 |
870 |
1088 |
1305 |
1741 |
2176 |
| Cooling Water Temp. (°F) |
85.0 Inlet, 95.8 Outlet |
| Rated Water Flow (gpm)* |
120.8 |
161.0 |
201.3 |
241.5 |
322.0 |
402.5 |
| Cond. & Abs. Press. Drop (psi) |
10.9 |
14.1 |
10.1 |
14.9 |
| Water retention volume (gal) |
38.3 |
47.6 |
62.1 |
78.2 |
108.6 |
141.1 |
| Fuel |
Type |
Natural Gas
or Propane Gas |
Input
(Btu/hr x
103) |
Cooling |
353 |
471 |
588 |
706 |
941 |
1176 |
| Heating |
353 |
471 |
588 |
706 |
941 |
1176 |
| Control |
Cooling |
High (100%) - Low
(70%) - Off |
| Heating |
On - Off |
| Electrical |
Power supply |
208V, 60 Hz, 3 ph. |
Consumption
(W) |
Cooling |
1560 |
1790 |
1930 |
2100 |
2300 |
2500 |
| Heating |
1560 |
1790 |
1930 |
2100 |
2300 |
2500 |
| Weight |
Dry (lb) |
3950 |
4230 |
5090 |
5310 |
7500 |
8600 |
| Pipe Connections |
Chilled/Hot Water (in) |
2 NPT |
2 1/2 NPT |
3 Flanged |
4 Flanged |
| Cooling Water (in) |
2 1/2 NPT |
3 NPT |
5 Flanged |
| Gas (in) |
1
- 1/2 NPT |
2 NPT |
2 1/2 NPT |
| Exhaust Vent (in) |
6.3 Dia. |
7.1 Dia. |
* Minimum cooling water flow
NOTES:
1. Fuel input is based on HIGHER HEATING VALUE of gas.
2. Specifications are based on water in all circuits and fouling factor of
0.0005 ft²hr °F/Btu.
3. Two or more modules may be installed in parallel for larger capacities.
4. Do not exceed 85.3 psi operating pressure in any water circuit.
5. Standard burner control for cooling operation is High (100%)-Low
(70%)-Off.
6. The standard natural gas supply pressure is 5.0 in. wc (7.0 in. wc for
CH-K100).
7. The standard propane gas supply pressure is 11.0 in. wc.
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