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Chiller/Heater and Description
Sight Glass
CAUTION
Equipment Damage!
Failure to remove moisture from system could cause
corrosion within the chiller/heater components, and
degrade performance.
Phase Monitor
16
When the sight glass shows a green indicator, no moisture is present. When the
sight glass shows a yellow indicator, there is moisture in the refrigerant line.
Bubbles can be observed whenever chiller/heater cycling causes the pressure to
change up or down.
A compressor can fail if operated in reverse for more than a minute. A phase monitor
is used on three phase power systems to ensure that the electricity supplying the
chiller/heater is configured appropriately. A phase monitor prevents a motor from
operating in reverse—if any of the three legs of power are landed incorrectly—and
will shut the system down upon detection of a reversed phase condition.
ARTC-SVX005A-EN
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