To Connect The User Interface; To Connect The Shut-Off Valve - Daikin Altherma 3 R F Installation Manual

6 Electrical installation
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.
Installation manual
14
unit" [ 4 6]):
1
3
2
a
6.3.4
11 12
X5M P2 P1
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 two LWT
zones, 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. In this case, the main zone
cooling setpoint will not be adjustable. The cooling setpoint
for the heat pump convectors can be adjusted via the
additional zone setpoint screen.
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.
B From the left
PCB
1×
a
b
D From the top centre
a
b
PCB
1×
b
unit" [ 4 6]):
1
3
2
EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596818-1D – 2021.10