To Connect The Shut-Off Valve - Daikin Altherma 3 R F Installer's Reference Manual

9 | Electrical installation

9.3.3 To connect the shut-off valve

Installer reference guide
118
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.
For more information, see the installer reference guide.
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
1 Top panel
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.
A
B
A
B
B
3 Fix the cable with cable ties to the cable tie mountings.
"7.2.4 To open the indoor
M2S
NO
21 28
X2M
NC
21 29
X2M
4
unit" [ 62]):
1
ERGA04~08EAV3(A) + EHVH04+08SU18+23EA6V
Daikin Altherma 3 R F
4P629090-1 – 2020.08
3
2