Electrical Connection - Waterco HEAT PUMP SWIMMING POOL HEATERS Owner's Manual

Flow Check Valve
This is concerned with the installation of heat pumps below the pool water level. The heat pump operates on a
pressure switch that activates the unit when the pool pump is switched on.
If the heat pump is installed more than 1.5 metres below the pool water level, the weight of the water keeps the
pressure switch activated and the heat pump running - even when the pool pump is switched off.
In this situation, to prevent the heat pump running when the pool pump is switched off, a flow check valve must
be installed in-line with the pressure switch.
The procedure on the following pages should be carried out: (This installation was carried out on a 105 three
phase model, but the same procedure applies to all models)
Installation Above Water Level
For installations where the heat pump is installed above water level, installers must ensure that sufficient water
flow is diverted to the heat pump. Flow is detected by the pressure switch. If the volume of water passing through
the heat pump is insufficient, the pressure switch will not activate and will not turn on the unit.
Bypass
A bypass must be installed with all heat pumps. This will allow the user to control the water flow through the unit,
as well disconnecting it easily for servicing.
Three Phase Connections
When installing the three phase heat pumps, the electrician must ensure at all times that the connections are done
according to the tags placed on the wires. The wiring is tagged: L1, L2, L3, and N.
SUPPLY ( AUS / NZ )
L1 Blue
L2 Red
L3 White
N Black
It is essential that the electrician installing three phase heat pumps is present when the units are started up for
the first time.
Wrongly connected heat pumps are indicated by the compressor running backwards, and making excessive
noise after the 3 minute time delay. This can damage the compressor if it is left to run.
If this occurs, the unit should be turned off immediately, and the wiring should be changed by swapping any two
(2) phases to fix the problem - one phase needs to stay in the same position.
This is necessary as certain households/ properties may have three phase power supplies that are not wired to
Australian standards.
HEAT PUMP ( US / CANADA )
L1 Orange
L2 Red
L3 Black
N White
Electrical
IMPORTANT
To ensure your safety and ensure the adequate functioning of your heat pump, all electrical work should be
performed by a fully qualified and licensed electrician in accordance with local electrical codes.
An adequate and dedicated circuit breaker and copper wiring must be used. Refer to the electrical installation
diagram found on the inside of the access panel. It may be necessary to install a ground circuit breaker.
WARNING
THE UNIT MUST BE DISCONNECTED BEFORE
!
OPENING THE ACCESS PANEL.

Electrical Connection

Standard power supply : 208/240 v - 60hz-1 phase
Optional power supply : 208/240 v - 50hz-1 phase
380/420 v - 50/60 hz - 3 phase
200/230 v - 50/60hz - 3 phase
POWER BREAKER
MODELS
SUPPLY (Amps)
- 220 / 1 20
-
220 / 1 20
- 220 / 1 20
- 220 / 1 - 380 / 3 30 - 15
- 220 / 1 - 380 / 3 30 - 15
- 220 / 1 - 380 / 3 40 - 15
-
220 / 1 - 380 / 3 40 - 20
- 220 / 1 - 380 / 3 50 - 30
- 220 / 1 - 380 / 3 50 - 30
WARNING
!
The power cable ground must be connected to the electrical panel and to the ground lug of the heat pump. An
improper incorrect installation may be a potential cause of fire, electrical shock or injury.
I pg 09
Heat Pump Swimming Pool Heaters
Running * ELECTRIC WIRE SIZE
(Amps) mm (A WG)
2
6.5 4 (12)
9.5 4 (12)
11 4 (12)
14 - 60 5,3 (10) - 2,1 (14)
16 - 7.5 6 (10) - 2,5 (14)
18 - 80 10 (8) - 4 (12)
27 - 13 10 (8) - 4 (12)
33 - 15 16 (6) - 6 (10)
34 - 19 16 (6) - 10 (8)