Page 268 - HVAC Pump Handbook

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Configuring an HVAC Water System

Configuring an HVAC Water System 265

H

Return pipe
friction, 5 ft.

A

Chiller
E G condenser
B C D F

Friction, 25 ft.
Supply pipe
friction, 5 ft.
(a) Open piping system.

50
D Pump discharge fittings
E
Supply pipe
40
F

30 Chiller condenser
System head —ft. 20 Pump head, loss

56 ft.
G
Return pipe
10
H
Free fall through tower
Cooling tower
0 water level
A
B Suction pipe
C Pump suction fittings
10 P
No scale
(b) Pressure gradient for open system.
Figure 9.10 Open water systems.

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