To Connect The Electrical Wiring To The Indoor Unit - Daikin Altherma 3 H MT ECH2O Installer's Reference Manual

9 | Electrical installation

9.3.1 To connect the electrical wiring to the indoor unit

Installer reference guide
116
Item
Human Comfort Interface
WLAN module
for room thermostat (wired or wireless):
In case of...
Wireless room thermostat
Wired room thermostat
without multi-zoning base unit
Wired room thermostat with
multi-zoning base unit
Remark: All cables which will be connected to the switch box of the ECH
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
See:
▪ Installation and operation manual of the
Human Comfort Interface
▪ Addendum book for optional equipment
Wires: 2×(0.75~1.25 mm²)
Maximum length: 500 m
[2.9] Control
[1.6] Room sensor offset
See:
▪ Installation manual of the WLAN module
▪ Addendum book for optional equipment
Use the cable delivered with the WLAN
module.
[D] Wireless gateway
▪ Installation manual of the wireless room
thermostat
▪ Addendum book for optional equipment
▪ Installation manual of the wired room
thermostat
▪ Addendum book for optional equipment
▪ 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)
"7.2.5 To open the indoor
Description
See...
O must be
2
4
unit" [ 72]).
EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663478-1 – 2021.07