6 Electrical installation
Installation manual
20
23EA
Daikin Altherma 3 R F
4P629088-1C – 2021.11
Model (power
supply)
Connections to backup heater power
supply
*6V (6V3: 1N~ 230 V)
1N~, 50 Hz
230 V AC
SWB
4
3
6
5
2
1
K5M
14
13
Q1DI
1
2
3
4
5
6
7
8
F1B
I
I
I
I
N
L
X6M
BRN
GRY
BLU1
BLU2
*6V (6T1: 3~ 230 V)
SWB
3~, 50 Hz
230 V AC
4
3
6
5
2
1
K5M
14
13
1
2
3
4
5
6
7
8
F1B
I
I
I
I
Q1DI
L1 L2 L3
X6M
BRN
GRY
BLU1
BLU2
F1B
Overcurrent fuse (field supply). Recommended fuse:
4‑pole; 20 A; curve 400 V; tripping class C.
K5M
Safety contactor (in the lower switch box)
Q1DI
Earth leakage circuit breaker (field supply)
SWB
Switch box
X6M
Terminal (field supply)
NOTICE
Do NOT cut or remove the backup heater power supply
cable.
6.3.3
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 unit"
10]):
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
Open the following (see
"4.2.1 To open the indoor unit"
1
Top panel
1
2
3
2
User interface panel
3
Upper switch box cover
