Section 4. Electrical Connections
ELECTRICAL SHOCK HAZARD. This heat
pump contains wiring that carries high voltage.
Contact with these wires may result in severe
injury or death. Isolate (Turn Off) power to the
circuit supplying electricity to the heat pump
before attempting to connect it to the heat
pump and/or before servicing the heat pump.
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify
proper operation after servicing.
4.1
General Information
Wiring connections must be made exactly as
shown in the wiring diagram found on the inside of
the heat pump access compartment. See Figure 11 for
single phase electrical wiring and Figure 12 for 3-phase
electrical wiring (See Figure 13 for electrical wiring
diagram symbol definitions).
The heat pump must be properly and reliable
connected to a Protective Earth (PE) conductor. There
is a bonding lug (Protective Earth terminal) on the right
side of the heat pump, where a protective earth (PE)
conductor must be attached.
4.2
Main Power
Electrical wiring to the heat pump must be in
accordance with applicabe local and/or national codes.
The heat pumps come factory-wired for use with either
208-230 VAC single phase or 380-420 VAC three phase,
50 Hz field electrical supply depending on the model.
See the rating plate for the electrical specifications. All
wiring must be done by a certified electrician.
The following is the procedure to wire the AE-
Ti Heat Pump to the electrical source specified on the
Rating Plate:
1.
Be sure the power to the circuit for the heat pump
is turned off.
2.
Remove the four (4) screws that attach the service/
access panel to the heat pump unit (see Figure 15).
3.
Remove the one (1) screw in the front cover of the
sheet metal junction box.
WARNING
CAUTION
4.
Remove the front cover of the sheet metal junction
box.
5.
Electrical supply lines must be run through
watertight conduit. Run the wires and conduit from
the power source and connect them to the conduit
connection labeled "High Voltage Connection" on
the right side of the heat pump. See Figure 15 for
connection location.
6.
Connect the wires to the terminals on the main
contactor as shown in the wiring diagram. Refer to
Figures 11 and 12.
7.
Connect the ground wire to the ground lug
provided in the electrical compartment.
8.
Replace the cover of the junction box.
9.
Replace the service access panel and replace the
screws to hold it in place.
10. Connect a copper bonding (earthing) wire [6 AWG
(4,1 mm)] to the bonding lug (earth terminal) on
the right side of the heat pump.
CAUTION
This heater must be connected to a bonding
grid with a solid copper wire not smaller in
diameter than 6 AWG (4,1 mm).
4.3
Bonding (Earthing)
Air Energy™ and most installation codes require
that all metallic components of a pool structure,
including reinforcing steel, metal fittings, and above
ground equipment be bonded together with a solid
copper conductor not smaller than 6 AWG (4,1 mm).
The heat pump, along with pumps and other pool
equipment must be connected to this bonding grid. A
bonding lug (earth terminal) is provided on the right
hand side of the heat pump to ensure this requirement is
met.
4.4
Pump Connection (Maintain Temp
Feature)
This feature allows the heat pump to turn on the
pool pump, bypassing the time clock setting, to maintain
the desired temperature. In order for the MAINTAIN
TEMP feature to be functional, a dedicated line from
the pool pump time clock to the Maintain Temp (Pump)
Relay is needed. See Figure 14.
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