Electrical Connections - Power And Modbus Cable Heat Pump Connections - Dimplex A8M Installation Manual

To open the heat pump, follow the procedure shown in figure 9;
1) Unscrew 2 screws (1) holding front bottom panel (2) using a PZ2 screwdriver
2) Pull the front bottom panel (2) down then out to remove
3) Unscrew 5 screws (3) holding the front cover (4) of the electrical box to open and then pull down
4) Remove 2 PZ2 screws (6) holding the door flap in place to access cable connections.
5) Cable access cover (7) only used on some models.
For model cable connection configurations for your heat pump model, please see figure(s) 11/12.
6) The cable access covers (5 and 7) can be opened by removing a screw to allow access to cables.
CAUTION: Ensure that cable access covers are closed correctly when not in use.
CAUTION: Follow steps in reverse order to close the heat pump. When closing the heat pump front
panel, ensure that the top and bottom panels are interlocked.

4.2.6 Electrical Connections - power and Modbus cable heat pump connections

The electrical connections to the heat pump may have one of two configurations, depending on the model.
Please see diagrams 11/12 for your configuration.
BLUE / White
WHITE / Blue
NOTE: 'S' as shown in figure 10 above is the earth shield and must be connected during installation.
Millbrook House, Grange Drive, Hedge End, Southampton, SO30 2DF
Controller Cable (RS485 MODBUS)
to be connected to S, OV, B, A
EARTH SHIELD
WHITE / Orange
Connections on this side are pre-wired
Figure 10: Heat pump electrical connections
Mains power supply cable to
be connected to PE, L, N
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