Page 242 - HVAC Pump Handbook
P. 242
Rishel_CH08.qxd 21/4/06 6:16 PM Page 239
The Use of Water in HVAC Systems
DP
Coils
No crossover bridges or return water valves
DP
DP
Two-way valves Variable primary system (four zones in one building.)
Ordinary check valves Automatic shut-off valves Variable speed primary pumps
DP
Differential pressure transmitters Chiller
C
Figure 8.12
Chiller
Chiller
239
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