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Electrical installation
Installer reference guide
120
ERGA04~V3A+V37 + EHSH/X(B)04+08P30+50EF
Daikin Altherma 3 R ECH₂O
4P678716-1 – 2022.01
In case of…
See…
Wired room thermostat with
multi-zoning base unit
▪
Installation manual of the wired room
thermostat (digital or analogue) + multi-zoning
base unit
▪
Addendum book for optional equipment
▪
In this case:
-
You need to connect the wired room
thermostat (digital or analogue) to the
multi-zoning base unit
-
You need to connect the multi-zoning base
unit to the outdoor unit
-
For cooling/heating operation, you also
need to implement a relay (field supply, see
addendum book for optional equipment)
9.3.1 To connect the electrical wiring to the indoor unit
Remark
: All cables which will be connected to the switch box of the ECH
2
O must be
fixed by strain relief.
To have easier access to the switch box itself and the routing of cables the switch
box can be lowered (see
"7.2.4 To open the indoor unit"
76]).
If the switch box is lowered in service position while the electrical installation is
done, additional cable length has to be taken into account adequately. The cable
routing in normal position is longer than in service position.
