Field Wiring Guidelines; Connection; Connection Of The Indoor Unit Power Supply And Communication Cable - Daikin EKHVH008BB6V3 Installation Manual

CAUTION
Select all cables and wire sizes in accordance with relevant
local and national regulations.
WARNING
After finishing the electric work, confirm that each electric
part and terminal inside the electric parts box is connected
securely.

Field wiring guidelines

■
Most field wiring on the indoor unit side is to be made on the
terminal block inside the switch box. To gain access to the
terminal block, remove the indoor unit cover.
WARNING
Switch off all power supply – i.e. outdoor unit power
supply and backup heater – before removing the
switch box service panel.
■
A dedicated power circuit is required for the backup heater.
■
Take out the switchbox and put it in front of the unit and open the
switchbox cover. Refer to
on page 11.
When installing field supply or option cables, always
make sure that the switchbox is placed before the
unit. This will make it possible to remove the
switchbox easily during service.
Route the wires into the unit as follows:
LV
HV
PS
PS
HV
LV
PS Power supply
HV High voltage
LV Low voltage
Installation manual
20
"6.1. Selecting an installation location"
PS
HV
LV
PS + HV
LV
To avoid electric noise problems, be sure that cables are put in
the correct bundle as mentioned on the figure.
Be sure to fix the cable with cable ties to the cable tie mountings
to ensure strain relief and to make sure that it does not come in
contact with the piping and sharp edges.
CAUTION
Do not push or place redundant cable length in the
unit.

7.4. Connection

Use the appropriate cables, connect the power supply and user
interface wiring to the appropriate terminals as shown below.
1
3
2
3
1 Power supply
2 User interface wiring
3 Stress relief
Refer also to the wiring diagram for further details.
For the connections of optional PCB's please refer to the respective
PS
installation manual.
HV
Connection of the indoor unit power supply and
communication cable
LV
Power circuit and cable requirements
Power supply for the indoor unit is to be provided through the outdoor
unit. Data communication with the outdoor unit is provided through
the same cable.
For all guidelines and specifications regarding field wiring between
the indoor unit and the outdoor unit, please refer to the outdoor unit
installation manual.
Procedure
1 Using the appropriate cable, connect the power circuit to the
appropriate terminals as shown on the wiring diagram and the
illustration below.
2 Connect the earth conductor (yellow/green) to the earthing
screw on the switch box mounting plate.
3 Fix the cable with cable ties to the cable tie mountings to ensure
strain relief.
4 When routing out cables, make sure that these do not obstruct
mounting of the indoor unit cover.
EKHVH/X008BB6V3 + EKHVH/X008BB6+9WN
Daikin Altherma indoor unit
4PW64329-1 – 07.2010