9 | Electrical installation
Installer reference guide
103
EPRA14~18D + ETVZ16S18+23E
Daikin Altherma 3 H HT F
4P644739-1A – 2022.03
Item Description
Human Comfort Interface See:
▪ Installation and operation manual of the
Human Comfort Interface
▪ Addendum book for optional equipment
Wires: 2×(0.75~1.25mm²)
Maximum length: 500m
[2.9] Control
[1.6] Room sensor offset
WLAN module See:
▪ Installation manual of the WLAN module
▪ Addendum book for optional equipment
Use the cable delivered with the WLAN
module.
[D] Wireless gateway
for room thermostat (wired or wireless):
In case of… See…
Wireless room thermostat ▪ Installation manual of the wireless room
thermostat
▪ Addendum book for optional equipment
Wired room thermostat
without multi-zoning base unit
▪ Installation manual of the wired room
thermostat
▪ Addendum book for optional equipment
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 main power supply
1 Open the following (see "7.2.6To open the indoor unit"[460]):
1 Top panel
2 User interface panel
3 Upper switch box cover