To Connect The Shut-Off Valve; To Connect The Electricity Meters; To Connect The Domestic Hot Water Pump - Daikin ETBH12EF6V Installation Manual

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. For more information, see the installer reference
guide.
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
1 Front panel
2 Switch box cover
3 Switch box
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 A
A A
B B
C C
B C C
X2M
C C
ETBH/X12EF6V+9W
Daikin Altherma 3 H MT W
4P634879-1 – 2021.03
unit" [ 4 6]):
3
2
1
M2S
NO
5 6 21 28
X2M X2M
NC
5 6 21 29
X2M X2M
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
1 Front panel
2 Switch box cover
3 Switch box
2 Connect the electricity meters cable to the appropriate terminals
as shown in the illustration below.
A
A
B
C
B C
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)
6 Electrical installation
unit" [ 4 6]):
3
2
1
6 5 4 3
S2S S3S
Installation manual
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