
SERVICING
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CTK04 ADDENDUM
8. Select ON. Press DONE to initiate PUMP DOWN.
Approximately one minute later, the compressor should
start operating. Check the amperage at the compressor
wiring to see the compressor operation status. Close
liquid service valve approximately two minutes after
compressor has come on. Compressor will stop auto-
matically then close the gas service valve immediately.
9. To terminate PUMP DOWN, select PUMP DOWN screen
again. Press OFF. Press DONE to terminate PUMP
DOWN.
10. Once PUMP DOWN is set, navigate to HOME screen.
After finishing PUMP DOWN operation, unit will stop
automatically. Unit will show error code “E11” after the
PUMP DOWN operation starts.
NOTE: Refrigerant cannot be collected to the outdoor unit
completely if the system is overcharged or if there is a delay
in closing the liquid service valve and gas service valve.
Evacuate the leftover refrigerant from the system using a
recovery machine.