3�9 Pool Pump Override; Terminals P1/P2 - Calorex V-PAC VPT 12 ALX Owners & Installation Manual

OWNER/INSTALLATION MANUAL
3�9 POOL PUMP OVERRIDE

TERMINALS P1/P2

For installations where the pool filter pump runs
continuously, these terminals do not need to be used.
For installations where a timeclock controls the pool
filter pump, and the same pump provides water flow
to the heat pump, the heat pump can override "pump
off" periods to ensure the pool is heated/cooled. To
activate this setting please speak to your installer.
When installed in parallel with the timeclock, the pool
filter pump will run when:
a) a period of "pump on" has been set on the time
clock for filtration purposes.
b) a period of "pump off" has been set in the time
clock and the heat pump runs the pool filter pump for
temperature sampling and if the pool subsequently
requires heating/cooling.
P1
P2
Terminals in
heat pump
(volt free)
Pool pump
starter
18
Customer's external pump/
L
filter time clock
N
This feature operates by over-riding the timeclock
whenever the controller measures a water temperature
that needs heating/cooling. If the pool does not need
heating/cooling the filter pump will be turned off until
the controller next measures a water temperature
that needs heating/cooling. If the pool needs heating/
cooling the heat pump will continue to run the filter
pump and heat/cool the pool.
This feature will reduce the pool filter pump run time to
minimise pump energy usage.
Single phase
water pump
Separate supply
L N E
L
N
1005759 ISSUE 2