Daikin Altherma 3 H MT ECH2O, Installation Manual

Page: 20 / 44

6 Electrical installation
Installation manual
20
ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH ₂ O
4P663479-1 – 2021.07
A
B
M2S
B
1418
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
indoor unit" [ 4 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" [
4
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
indoor unit" [
4
15].
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" [
4
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.