Guidelines When Connecting The Electrical Wiring; Connections To The Indoor Unit - Daikin Altherma 3 R F Installation Manual

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6.2
Guidelines when connecting the
electrical wiring
Tightening torques
Indoor unit:
Item
M4 (X1M, X2M, X5M)
M4 (earth)
6.3

Connections to the indoor unit

Item
Power supply (main)
See
"6.3.1 To connect the main power
supply" [ 4  12].
Power supply (backup
See
"6.3.2 To connect the backup heater
supply" [ 4  13].
heater)
power
User interface
See
"6.3.3 To connect the user
interface" [ 4  14].
Shut-off valve
See
"6.3.4 To connect the shut-off
valve" [ 4  14].
Electricity meters
See
"6.3.5 To connect the electricity
meters" [ 4  15].
Domestic hot water
See
"6.3.6 To connect the domestic hot
pump" [ 4  15].
pump
water
Alarm output
See
"6.3.7 To connect the alarm
output" [ 4  16].
Space cooling/heating
See
"6.3.8 To connect the space cooling/
operation control
heating ON/OFF
Power consumption
See
"6.3.10 To connect the power
digital inputs
consumption digital
Safety thermostat
See
"6.3.11 To connect the safety
thermostat (normally closed
contact)" [ 4  18].
Room thermostat
See below table.
(wired or wireless)
Wires for wired room thermostat: (3
for cooling/heating operation; 2 for
heating only operation)×0.75 mm²
Wires for wireless room thermostat: (5
for cooling/heating operation; 4 for
heating only operation)×0.75 mm²
Maximum running current: 100 mA
For the main zone:
▪ [A.2.1.7] Unit control method
▪ [A.2.2.4] Contact type main
For the additional zone:
▪ [A.2.2.5] Contact type add.
EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596818-1D – 2021.10
Tightening torque (N•m)
1.2~1.5
1.2~1.5
Description
output" [ 4  16].
inputs" [ 4  17].
6 Electrical installation
Item
Heat pump convector
There are different controllers and
setups possible for the heat pump
convectors.
For more information, see:
▪ Installation manual of the heat
▪ Installation manual of the heat
▪ Addendum
Wires: 4×0.75 mm²
Maximum running current: 100 mA
For the main zone:
▪ [A.2.1.7] Unit control method
▪ [A.2.2.4] Contact type main
For the additional zone:
▪ [A.2.2.5] Contact type add.
Remote outdoor
See:
sensor
▪ Installation manual of the remote
▪ Addendum
Wires: 2×0.75 mm²
[A.2.2.B]=1 (External
sensor=Outdoor sensor)
[A.6.5] Ext amb. sensor offset
[A.6.4] Averaging time
Remote indoor sensor
See:
▪ Installation manual of the remote
▪ Addendum
Wires: 2×0.75 mm²
[A.2.2.F.5]=2 (External
sensor=Room sensor)
[A.3.2.3] Ext. room sensor offset
LAN adapter
See:
▪ Installation manual of the LAN
▪ Addendum
Wires: 2×(0.75~1.25 mm²). Must be
sheathed.
Maximum length: 200 m
See
requirements" [ 4  12].
for room thermostat (wired or wireless):
In case of...
Wireless room thermostat ▪ Installation manual of the wireless
room thermostat
▪ Addendum
equipment
Description
pump convectors
pump convector options
book
for
optional
equipment
outdoor sensor
book
for
optional
equipment
indoor sensor
book
for
optional
equipment
adapter
book
for
optional
equipment
"LAN adapter – System
See...
book
for
optional
Installation manual
11

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