Daikin Altherma 3 H HT F - To Connect the Shut-Off Valve

9 | Electrical installation
Installer reference guide
123
EPRA14~18D + ETVH16SU18+23E
Daikin Altherma 3 H HT F
4P644738-1A – 2022.03
Model (power supply) Connections to backup heater power supply
*6V (6T1: 3~230V)
SWB
3~, 50 Hz
230 V AC
4
3
6
5
2
1
K5M
14
13
1
2
3
4
5
6
7
8
F1B
II I I
Q1DI
L1 L2 L3
X6M
BRN GRY BLU1
BLU2
F1B Overcurrent fuse (field supply). Recommended fuse: 4‑pole; 20A; curve 400V;
tripping class C.
K5M Safety contactor (in the lower switch box)
Q1DI Earth leakage circuit breaker (field supply)
SWB Switch box
X6M Terminal (field supply)
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 following (see "7.2.6To open the indoor unit"[471]):
1 Top panel
1
2
3
2 User interface 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.