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NOTICE
Do NOT cut or remove the backup heater power supply
cable.
6.3.3
To connect the user interface
▪ If you use 1 user interface, you can install it at the indoor unit (for
control close to the indoor unit), or in the room (when used as
room thermostat).
▪ If you use 2 user interfaces, you can install 1 user interface at the
indoor unit (for control close to the indoor unit) + 1 user interface
in the room (used as room thermostat).
Wires: 2 (per user interface)×(0.75~1.25 mm²)
Maximum length: 200 m
[A.2.1.7] Unit control method
[A.2.1.B] User interface location
[A.3.2.2] Room temp. offset
1 Open the following (see
"4.2.1 To open the indoor
1 Top panel
2 Upper front panel
3 Upper switch box cover
2 Connect the user interface cable to the indoor unit. Fix the
cable with cable ties to the cable tie mountings.
b
A
B
A
B
a
Main user interface: Required for operation. Delivered
with the unit as accessory.
b
Optional user interface
3 Insert a screwdriver into the slots underneath the user interface
and carefully separate the faceplate from the wallplate. The
PCB is mounted in the faceplate of the user interface. Be
careful NOT to damage it.
EHFH03S18D
Daikin Altherma 3 R F
4P596803-1D – 2022.08
unit" [ 4 5]):
1
3
2
a
6.3.4
11 12
X5M
P2 P1
6 Electrical installation
4 Fix the wallplate of the user interface to the wall.
5 Connect as shown in A, B, C or D:
A From the rear
PCB
1×
a
b
C From the top
a
b
PCB
1×
b
a Notch this part for the wiring to pass through with nippers
etc.
b Secure the wiring to the front part of the casing using the
wiring retainer and clamp.
6 Reinstall the faceplate onto the wallplate. Be careful NOT to
pinch the wiring when attaching the frontplate to the unit.
To connect the shut-off valve
INFORMATION
Shut-off valve usage example. In case of one LWT zone,
and a combination of underfloor heating and heat pump
convectors, install a shut-off valve before the underfloor
heating to prevent condensation on the floor during cooling
operation.
Wires: 2×0.75 mm²
Maximum running current: 100 mA
230 V AC supplied by PCB
[A.3.1.1.6] Shut-off valve
1 Open the following (see
"4.2.1 To open the indoor
1 Top panel
2 Upper front panel
3 Upper switch box cover
2 Connect the valve control cable to the appropriate terminals as
shown in the illustration below.
NOTICE
Wiring is different for a NC (normally closed) valve and a
NO (normally open) valve.
B From the left
PCB
1×
a
b
D From the top centre
b
PCB
1×
b
unit" [ 4 5]):
1
3
2
Installation manual
13
a
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