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6 Electrical installation
A
B
3 4
A
B
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
6.3.11
To connect the power consumption digital
inputs
Wires: 2 (per input signal)×0.75 mm²
Power limitation digital inputs: 12 V DC / 12 mA detection
(voltage supplied by PCB)
[9.9] Power consumption control.
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 Install the switch box metal insert.
Installation manual
24
4
3
X 2M
1
N/- L/+
Ext. heat source
Max. load
0,3 A - 230 V AC
1 A - 5 V DC
unit" [ 4 8]):
4
3
2
1
1
2
3 Connect the power consumption digital inputs cable to the
appropriate terminals as shown in the illustration below.
A
B
A8P
4 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
6.3.12
To connect the safety thermostat
(normally closed contact)
Wires: 2×0.75 mm²
Maximum length: 50 m
Safety thermostat contact: 16 V DC detection (voltage
supplied by PCB). The voltage-free contact shall ensure the
minimum applicable load of 15 V DC, 10 mA.
3
1 2
3
4 5
A
a
B
ETSH/X(B)16P30+50E
Daikin Altherma 3 H HT ECH₂O
4P679468-1B – 2022.09
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