6 Electrical installation
Installation manual
12
ETBH/9W
Daikin Altherma 3 H MT W
4P634879-1 – 2021.03
Item
Description
(in case of DHW tank)
3‑way valve
See:
▪ Installation manual of the 3-way
valve
▪ Addendum
book
for
optional
equipment
Wires: 3×0.75 mm²
Maximum running current: 100 mA
[9.2]
Domestic hot water
(in case of DHW tank)
Domestic hot water
tank thermistor
See:
▪ Installation manual of the domestic
hot water tank
▪ Addendum
book
for
optional
equipment
Wires: 2
The thermistor and connection wire
(12 m) are delivered with the domestic
hot water tank.
[9.2]
Domestic hot water
(in case of DHW tank)
Power supply for
booster heater (from
indoor unit to thermal
protector of booster
heater)
See:
▪ Installation manual of the DHW
tank
▪ Addendum
book
for
optional
equipment
Wires: (2+GND)×2.5 mm²
[9.4]
Booster heater
(in case of DHW tank)
Power supply for
booster heater (from
mains to indoor unit)
See:
▪ Installation manual of the domestic
hot water tank
▪ Addendum
book
for
optional
equipment
Wires: 2+GND
Maximum running current: 13 A
[9.4]
Booster heater
WLAN module
See:
▪ Installation manual of the WLAN
module
▪ Addendum
book
for
optional
equipment
▪ Installer reference guide
Use the cable delivered with the
WLAN module.
[D]
Wireless gateway
Bizone kit
See:
▪ Installation manual of the bizone kit
▪ Addendum
book
for
optional
equipment
Use the cable delivered with the
bizone kit.
[9.P]
Bizone kit
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)
6.3.1
To connect the main power supply
1
Open the following (see
"4.2.1 To open the indoor unit"
6]):
1
Front panel
1
2
3
2
Switch box cover
3
Switch box
2
Connect the main power supply.
In case of normal kWh rate power supply
Interconnection
cable (= main
power supply)
Wires: (3+GND)×1.5 mm²
—
B
C
A
A
a
1 2 3
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