7 Installation
Installation and operation manual
16
EHYKOMB33A
Daikin Altherma hybrid heat pump – gas boiler module
4P353067-1H – 2018.10
DANGER: RISK OF ELECTROCUTION
A fused spur or an unswitched socket MUST be located no
more than 1m from the appliance.
CAUTION
For installation in damp rooms, a fixed connection is
obligatory. When working on the electrical circuit ALWAYS
isolate the electric supply.
7.5.2 To connect the communication cable
between gas boiler and indoor unit
1 Open the gas boiler.
2 Open the switch box cover of the gas boiler.
3 Remove one of the bigger knockout holes on the right side of
the switch box of the gas boiler.
4 Put the (larger) boiler connector through the knockout hole. Fix
the cable in the switch box by routing it behind the pre-mounted
wires.
a Solenoid coil
b Connector X5
5 Plug the gas boiler connector into connector X5 of the gas
boiler PCB. Make sure the solenoid coil is outside the gas boiler
switch box.
6 Route the communication cable from the gas boiler to the
indoor unit as in figure below.
7 Open the switch box cover of the indoor unit.
8 Plug the indoor unit connector into X39A of the indoor unit PCB.
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