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3 Fix the cable with cable ties to the cable tie mountings. General
information, see
"6.3.1 To connect the electrical wiring to the
unit" [ 4 17].
indoor
6.3.5
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
"4.2.1 To open the indoor
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.
ETSH/X(B)16P30+50E
Daikin Altherma 3 H HT ECH₂O
4P679468-1B – 2022.09
A
B
B
3 Fix the cable with cable ties to the cable tie mountings. General
information, see
unit" [ 4 17].
indoor
6.3.6
To connect the electricity meters
Wires: 2 (per meter)×0.75 mm²
Electricity meters: 12 V DC pulse detection (voltage supplied
by PCB)
unit" [ 4 8]):
[9.A] Energy metering
4
3
INFORMATION
2
1
In case of an electricity meter with transistor output, check
the polarity. The positive polarity MUST be connected to
X15M/5 and X15M/9; the negative polarity to X5M/5 and
X5M/3.
1 Open the following (see
1 User interface panel
2 Switch box
3 Switch box cover
4 Top cover
2 Connect the electricity meters cable to the appropriate terminals
as shown in the illustration below.
6 Electrical installation
NO
14 18
X 2M
1
NC
13 18
X 2M
1
"6.3.1 To connect the electrical wiring to the
"4.2.1 To open the indoor
Installation manual
M2S
A
B
unit" [ 4 8]):
4
3
2
1
21
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