In Case Of Dedicated Gas Boiler - Daikin Altherma EJHA04AAV3 Installer's Reference Manual

9 Installation
Item
X5M
9.7.4

In case of dedicated gas boiler

To connect the electrical wiring on the outdoor
unit
NOTICE
The distance between the high voltage and low voltage
cables should be at least 50 mm.
CAUTION
Do NOT push or place redundant cable length in the unit.
1 Open the top plate and the front plate. See
outdoor unit" on page 30.
2 Strip insulation (20 mm) from the wires.
a
a Strip wire end to this point
b Excessive strip length may cause electrical shock or
leakage.
3 Insert the wiring at the back of the unit:
a
b
a~d See below
4 If you insert cables through the knockout holes c and d:
▪ Punch the knockout holes using a hammer and screw driver.
▪ Insert the cable glands (delivered as accessory).
5 Inside the unit, route the wiring to the switch box as follows:
Installer reference guide
42
Tightening torque (N•m)
0.8~0.9
"9.2.2 To open the
b
c
d
c
d
3×
a~d See below
6 Inside the switch box, connect the wires to the appropriate
terminals.
7 After connecting all wiring, close the front plate and the top
plate.
Connections in case of dedicated gas boiler
Routing Possible cables (depends on the installed
options)
a Main power supply
Main power supply
(high voltage)
b User interface (mandatory option)
User interface (low
voltage)
c Domestic hot water pump (field supply)
High voltage
d ▪ Interconnection cable between outdoor
unit and gas boiler
Low voltage
▪ External
(option)
▪ LAN adapter (option)
INFORMATION
Bottom plate heater (option). For the routing, see the
installation manual of the bottom plate heater.
To connect the main power supply
1 Connect the main power supply to the appropriate terminals as
shown in the illustration below.
Daikin Altherma Hybrid hydrosplit heat pump
a
b
outdoor temperature sensor
EJHA04AAV3 + EHY2KOMB28+32AA
4P531180-1 – 2018.06