Balboa CLIM8ZONE II User And Service Manual page 11

3.4 Plumbing Connections
3.4.1 Plumbing diagram
3.4.2 Check-valve installation (recommended)
If automatic dosing equipment for chlorine and acidity (pH) is used, it is essential to protect the heat pump against
excessively high chemical concentrations which may corrode the heat exchanger. For this reason, equipment of this sort
must always be fitted in the piping on the downstream side of the heat pump, and it is recommended to install a check-
valve to prevent reverse flow in the absence of water circulation.
Damage to the heat pump caused by failure to follow this instruction is not covered by the warranty.
3.5 Electrical connection
DANGER: Electrical connections below must be done by a qualified and licensed electrician. Failure
to do so injury or death may occur.
1. Turn the spa breaker to OFF position before making electrical connection.
2. Make sure electrical ratings of the power source match with the electrical ratings marked on the label of this unit.
3. Attention: This unit is provided with a grounding lug and must be electrically bonded to the spa common bonding
grid. Connect the grounding lug with the spa common bonding grid with a #8 minimum solid copper wire.
4. Power to this unit must be supplied through a GFCI having a rated residual operating current not exceeding 5mA.
5. Connect the unit to 120VAC AV port of the spa controller. A splitter (PN 22934, not included) may be needed if the
AV port is being used for other equipment.
6. If a spa controller is not used, the unit may be hard wired to 120VAC power supply panel and must be done by a
licensed electrician. The unit may also be plugged into a dedicated 120VAC power supply junction box.
3.6 Initial operation
Note: In order for the heat pump to operate, the water circulating pump must be running to cause the water to circulate
through the heat pump. The heat pump will not start up if the water is not circulating.
After all connections have been made and checked, follow the following procedure:
1. Switch on the water circulating pump. Check for leaks and verify that water is flowing from and to the spa.
2. Switch on power to the heat pump.
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