Household (Townhouse) Central Air Conditioning Unit
18
10.3 Auto exhaust valve
If air in water system is not exhausted, it would cause effects:
1) Temperature at some parts will be uneven.
2) Noise is produced.
3) Oxygen contain in the air would cause metal oxygenation.
4) Too much air would damage water pump.
Auto exhaust valve should be installed at the top of pipeline, the place that
gas is easily gathered, and it should be installed vertically; self-close valve or
cut-off valve should be installed at bottom of exhaust valve, it is convenient for
system water ll or is used when repairing; exhaust valve cannot be installed at place that is easy to be frozen.
G3/8〞
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