Pentair ULTRATEMP HXi, Owner'S Manual

Page: 15 / 40

Page 15
Electrical Connections
General Information
Wiring connections must be made exactly as shown in the wiring diagram found on the inside of the
heat pump access panel; see the wiring diagrams on page 35.
The UltraTemp
TM
Heat Pump must include a definite means of grounding and bonding. There is a
ground lug inside the heat pump electrical compartment.
Equipotential Bonding
The Wiring Rules (AS/NZS 3000) and most other codes require in many circumstances that metallic
components of a pool structure, including reinforcing steel, metal fittings, and above ground equip-
ment be bonded together with a solid copper conductor. The heat pump contains a metal (titanium)
heat exchanger which is in contact with the pool water, which may need to be connected to this bond-
ing grid. A bonding lug is provided to ensure this requirement can be met. Please refer to the Wiring
Rules (AS/NZS 3000) and any local codes for details on whether equipotential bonding is required.
Main Power
Electrical wiring to the heat pump must be in accordance with the latest edition of the Wiring Rules
(AS/NZS 3000). All wiring must be done by a certified or qualified electrician.
Power to the heat pump must be protected by an RCD or RCBO . The heat pump should be the only
device connected to the protected circuit. For high power model heat pumps (16kW-24kW) it may be
necessary to use a D-Curve type RCD/RCBO to avoid nuisance tripping with compressor starts.
The following is the procedure to wire the heat pump to the electrical source:
Be sure the power to the circuit for the heat pump is turned off.
1. Remove the front panel of the heat pump cabinet (you need to loosen the front screws on the top
panel aswell).
2. Remove the service panel to the heat pump electrical compartment.
3. Electrical supply lines must be run through watertight conduit on the front panel. Run the wires
and conduit from the power source and connect them to the conduit connection. Use suitable gauge
connection wire as per below table.
4. Connect the power leads to the terminals in the electrical compartment as shown in the wiring
diagram.
5. Verify that all other wires are secure, they may have loosened during shipment.
6. Connect the ground wire to the ground lug provided.
7. Replace the service panel and reinstall screws to hold it in place.
8. Replace the front panel.
Heat Pump Cable Size
9kW 10A Plug and Cable Provided
12kW 15A Plug and Cable Provided
16kW 3 x 4mm
2
(A, N, E)
20kW 3 x 6mm
2
(A, N, E)
24kW 3 x 6mm
2
(A, N, E)
28kW 5 x 2.5mm
2
(3P, N, E)
Installation