Parameters
The parameter is pump out enabled set to on.
Operation
With split system heat pumps, pump out enable should never be turned on.
See the thermostat or sensor sections in Constant volume sequences if pump out is turned off.
If pump out is turned on, when the C1 output energizes, the condenser fan (CN-Fan) energizes when either the low pressure switch 1 (LPS1) opens or 5 minutes elapse.
If C1 is energized, and the accumulated C1 runtime is greater than 1 hour more than C2 accumulated runtime, C2 energizes for 5 minutes.
If C2 is energized, and the accumulated C2 runtime is greater than 1 hour more than the C1 accumulated runtime, C1 energizes for 5 minutes.