6 Electrical installation
Installation manual
15
ET9W
Daikin Altherma 3 H HT F
4P644730-1 – 2021.02
1
Top panel
1
2
3
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
M2S
B
A
B
21 28
X2M
B
21 29
X2M
NO
NC
3
Fix the cable with cable ties to the cable tie mountings.
6.3.4
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
X5M/6 and X5M/4; the negative polarity to X5M/5 and
X5M/3.
1
"4.2.1 To open the indoor unit"
1
Top panel
1
2
3
2
User interface panel
3
Upper switch box cover
2
Connect the electricity meters cable to the appropriate terminals
as shown in the illustration below.
A
6
5
4
3
S3S S2S
B
A
B
X5M
3 4 5 6
3
Fix the cable with cable ties to the cable tie mountings.
6.3.5
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
"4.2.1 To open the indoor unit"
1
Top panel
1
2
3
2
User interface panel
3
Upper switch box cover
2
Connect the domestic hot water pump cable to the appropriate
terminals as shown in the illustration below.
