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27
Heat Pump Pool Heater Connections (Wiring) - continued
Connect the 18AWG wires from the HPPH to the PS165VSP pump as show and described below.
Wiring Connections to the PS165VSP Pump
Figure 15 -
PS165VSP Wiring Connections
It does not matter which wire is connected to the IO-4 terminal
or the IGND terminal for these 24 VAC connections. While the
24 VAC connections are polarity sensitive, the digital inputs on
the VSP pump are floating and look for a differential voltage
from IO-4 to IGND. Therefore, the wiring does not matter for an
AC input signal, but will matter for a DC input signal. However,
connections to the Analog and Digital HPPH are 24 VAC signals
and so this is not an issue.
The factory default speed setting for this OVERRIDE signal
is 3450 RPM. This is to ensure sufficient water flow to ensure
proper operation of the HPPH. If optimization of this pump speed
is desired as an energy savings measure,
(Refer to the Energy
Savings Operation - PS165VSP Pump Speed Optimization
Section page 13.
This pump requires little or no service other than reasonable care and periodic cleaning of the strainer
basket.
1. Inspect the pump basket for debris by looking through the clear pump lid.
2. Turn off the power to the pump. If the pump is located below the water level, close isolation valves on
the suction and discharge sides of the pump to prevent back flow of water.
3. Remove any debris, because as the debris accumulates, it will begin to block the flow of water through
the pump. Keep the basket clean and clear to improve the performance of the pump.
4. Turn the lid’s lock ring counter clockwise until it stops. Carefully remove the lid and lock ring.
5. Remove the basket and properly dispose of the debris into the trash and rinse out the basket. Check
basket for cracks, if crack is found replace basket.
6. Replace basket back into the pump, align the basket properly with the suction pipe. Then fill with water
up to the suction pipe. Clean clear cover, lid o-ring and sealing surface of the pump of any debris.
7. Replace lid with locking ring.
Hand-tighten
the lid to make an air-tight seal.
Do not use any tools to
tighten the lid.
5
Service and Maintenance
Routine Maintenance