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6 Electrical installation
Installation manual
20
ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH
₂
O
4P663479-1A – 2022.07
A
B
M2S
B
14 18
X 2M
1
NO
B
13 18
X 2M
1
NC
A
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
15].
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)
[9.A]
Energy metering
INFORMATION
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
"4.2.1 To open the indoor unit"
7]):
1
User interface panel
1
3
4
2
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.
B
A
B
5 6 9 10
5 6 9 10
S3S
S2S
X 5M
1
A
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
6.3.7
To connect the domestic hot water pump
Wires: (2+GND)×0.75 mm²
DHW pump output. Maximum load: 2 A (inrush), 230 V AC,
1 A (continuous)
[9.2.2]
DHW pump
[9.2.3]
DHW pump schedule
1
Open the following (see
"4.2.1 To open the indoor unit"
7]):
1
User interface panel
1
3
4
2
2
Switch box
3
Switch box cover
4
Top cover
2
Connect the domestic hot water pump cable to the appropriate
terminals as shown in the illustration below.