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Problem
Likely Cause
Probable Solution
Shut down on
maximum freeze time
Pump hose disconnected
Check hose
Compressor not operating
Check compressor contactor,
check controller using test
mode
Check compressor start
components, check PTCR
resistance and temperature
Check compressor voltage
Check compressor windings
Low refrigerant charge
Add some refrigerant and
restart unit. If cycle time
improves, look for leak.
Hot gas valve leaks through
during freeze
Check hot gas valve for hot
outlet during freeze
Thermostatic expansion valve
bulb loose
Check bulb
Thermostatic expansion valve
producing very low or very high
superheat
Check evaporator superheat,
change TXV if incorrect
Compressor inefficient
Check compressor amp draw,
if low and all else is correct,
change compressor
September 2006 Page 43
Diagnostics – Air Cooled
Содержание C0522SR-1
Страница 96: ...Wiring Diagram C0522R C0530R C0630R C0830R C1030R Single Phase after 9 09 September 2009 Page 96 ...
Страница 98: ...Wiring Diagram C0522R C0530R C0630R C0830R C1030R Three Phase after 9 09 September 2009 Page 98 ...
Страница 126: ...Wiring Diagram C0630R 6 C0830R 6 C1030R 6 September 2009 ...
Страница 127: ...Wiring Diagram C0830R 63 C1030R 63 September 2009 ...