WFC- SC(H) Series
.
Installation
- 9 -
4.2 Chilled-Hot Water Piping
Water supply and accommodation of expansion of the chilled water circuit is afforded
by either an open cistern or closed expansion tank with check/pressure reducing
valves as shown in figure 11.
Plan piping with a rising grade of 1/200. And where high points exist in the piping
circuit, install purge valves to expel trapped air.
Valve & Thermometer Wells
C h il l e r
H e a t er
C h il l er -
H e a t er
C h il l e d -h o t
w a t e r p u m p
F a n c o il
F a n c o il
E xp a n s io n
ta n k
C lo sed S yst em
O p en S ys tem
W a t e r s u p p ly
C i st e rn
1 0 0 0
m m
M i n im u m
W a t e r s u p p ly
C h e c k / r e du c i n g
v a lv e
R e lie f
v a lv e
C h il l e d -h o t
w a t e r p u m p
Chiller-
Heater
Chilled-hot water pump
Drain valve
Stop
valve
Balance
valve
Thermometer
wells
Manual vent valve
Caution.
Do not exceed
588.4kPa in the
chilled-hot
water circuit
Caution.
Do not install any valves in the expansion pipeline
Figure 11
Figure 12
