Daikin ERRA08-12EW1, Installer'S Reference Manual

Page: 140 / 324

9 | Electrical installation
Installer reference guide
140
ERRA08~12E + ELVH/23E
Daikin Altherma 3 R MT F
4P708474-1 – 2023.05
NOTICE
Do NOT cut or remove the backup heater power supply cable.
9.3.3 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
[2.D] Shut off valve
1 Open the service cover. See "7.2.2 To open the outdoor unit" [
4
78].
2 Open the following (see "7.2.6 To open the indoor unit" [
4
81]):
1 Top panel
1
2
3
2 User interface panel
3 Upper switch box cover
3 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.
A
M2S