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12.5. Routing
WARNING
It is important to keep the high voltage, low voltage
and power supply wiring separated from each other.
In order to avoid any electrical interference the
distance between both wiring should always be at
least 25 mm.
Make sure to secure the field wiring so it never comes
in contact with any piping.
The outdoor unit has 2 openings at the
backside for field wiring intake. Use the
appropriate hole to route the power supply,
high voltage wiring and low voltage wiring
as shown in the figure.
LV
LV
LV
HV
HV
HV
Power supply routing (PS)
1.
Enter the power supply wire through the high voltage/power
supply (HV/PS) opening at the back of the outdoor unit.
2.
Route the power supply wire towards the switch box located at
the top of the outdoor unit.
3.
Secure the power supply wire with a cable tie around the frame
to keep it away from piping as shown in the figure above.
Control signal routing (HV)
1.
Enter the control signal wires through the high voltage/power
supply (HV/PS) opening at the back of the outdoor unit.
2.
Route the control signal wires towards the switch box located at
the top of the outdoor unit.
3.
Secure the control signal wires with a cable tie around the frame
to keep it away from piping as shown in the figure above. Keep a
distance of minimum 25 mm from the power supply wire.
EBHQ006+008BAV3 + EKCBX/H008BAV3
Unit for air to water heat pump system
4PW64602-1A – 09.2010
LV
HV
PS
PS
PS
PS
LV PS HV
Thermistor interconnection cable routing (LV)
WARNING
A cable tray or other means of protecting electrical wiring
must be used between indoor and outdoor unit to protect
the thermistor interconnection cable from mechanical
damage or weather influence such as drirect sunlight.
1.
Enter the thermistor interconnection cable through the low
voltage (LV) opening at the back of the outdoor unit.
2.
Route the thermistor interconnection cable towards the switch
box located at the top of the outdoor unit.
3.
Secure the thermistor interconnection cable with a cable tie
around the frame to keep it away from piping as shown in the
figure above. Keep a distance of minimum 25 mm from the
power supply wire and the control signal wires.
12.6. Outdoor switch box connections
4
2
3
1
Power supply
2
Indoor unit control signals
3
Indoor unit pump and heater control signals
4
Thermistor interconnection cable
Procedure
1
Open the switch box cover.
2
Using the appropriate cables, route and connect the power
supply cable and control cables to the appropriate terminals as
shown on the wiring diagram supplied with the outdoor unit and
according to the figure above.
3
Route and connect the thermistor interconnection cable as
shown in the figure above. Be sure not to force the connectors.
The connectors lock in one position only. Check both connector
sides for correct matching.
4
Secure the cables to the cable tie mountings with cable ties as
shown in the figure above.
WARNING
When connecting the power supply, the earth connection
must be made before the current-carrying connections are
established. When disconnecting the power supply, the
current-carrying connections must be separated before the
earth connection is. The length of the conductors between
the power supply stress relief and the terminal block itself
must be such that the current-carrying wires are tautened
before the earth wire is in case the power supply is pulled
loose from the stress relief.
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Installation manual
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