Make Up Water Supply
The make up water supply is used to refill water back into the hydronic system in the event of:
a) Leakage in the system
b) Maintenance service
The supply is usually from the main domestic pipe and it is usually connected to the water return
pipe of the pump; due to the lower pressure which will assist in "sucking" in the water. However,
should the pressure in the main supply pipe is lower than the pressure in the return pipe, water will
not enter the system. Rather, switch off the pump and allow the mains pressure to fill the system.
In view of this, it is necessary to install a check valve along the make up supply pipe to
prevent back flow out of the system.
Other equipment which can be installed (optional) along the make up supply pipe:
a) Pressure gauge
b) Safety relief valve - to prevent over filling [see Section 10]
c) Pressure regulating valve
d) Filter element [see Section 9]
e) Water meter
Domestic water supply
Pressure gauge
Check valve
CHILLER
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