To Connect The Shut-Off Valve - Daikin Altherma 3 H MT ECH2O Installer's Reference Manual

9 | Electrical installation

9.3.5 To connect the shut-off valve

Installer reference guide
124
2 Connect both connection cables from the backup heater EKECBU* to the
appropriate connectors as shown in the illustration below.
3 Fix the cable with cable ties to the cable tie mountings. General information,
see "9.3.1 To connect the electrical wiring to the indoor
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 User interface panel
2 Switch box
3 Switch box cover
4 Top 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.
"7.2.5 To open the indoor
4
unit" [ 116].
4
unit" [ 72]):
1
EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663478-1 – 2021.07
4
3
2