Daikin Altherma 3 M - To Connect the Space Cooling;Heating ON;OFF Output; To Connect the Changeover to External Heat Source

6 Electrical installation
Installation manual
26
EBLA04~08E2V3+E23V3 + EDLA04~08E2V3+E23V3
Daikin Altherma 3 M
4P685229-1A – 2022.05
180°
X2M
YC
Y1
A4P
X1M
a
9
7
YC
Y1
X2M.9
a Installation of EKRP1HBAA is required.
WARNING
Stripped wire. Make sure that stripped wire cannot make
contact with possible water on the bottom plate.
3 Fix the cable with cable ties to the cable tie mountings.
6.3.10 To connect the space cooling/heating ON/
OFF output
INFORMATION
Cooling is only applicable in case of reversible models.
Wires: (2+1)×0.75mm²
Maximum load: 0.3A, 250VAC
—
1 Access the electrical connections. See "6.3.1 To connect the
electrical wiring to the outdoor unit"[417].
2 Connect the space cooling/heating ON/OFF output cable to the
appropriate terminals as shown in the illustration below.
7
9
YCY2
X2M
12
3
A4P
1+2 Wires connected to the space
cooling/heating ON/OFF
output
3 Wire between X2M and A4P
A4P Installation of EKRP1HBAA is
required.
X2M.7
A4P.Y2
180°
X2M
YC
Y2
A4P
X1M
a
9
7
YC
Y2
X2M.9
a Installation of EKRP1HBAA is required.
WARNING
Stripped wire. Make sure that stripped wire cannot make
contact with possible water on the bottom plate.
3 Fix the cable with cable ties to the cable tie mountings.
6.3.11 To connect the changeover to external
heat source
INFORMATION
Bivalent is only possible in case of 1 leaving water
temperature zone with:
▪ room thermostat control, OR
▪ external room thermostat control.
Wires: 2×0.75mm²
Maximum load: 0.3A, 250VAC
Minimum load: 20mA, 5VDC
[9.C] Bivalent
1 Access the electrical connections. See "6.3.1 To connect the
electrical wiring to the outdoor unit"[417].
2 Connect the changeover to external heat source cable to the
appropriate terminals as shown in the illustration below.
A4P.X2
A4P.X1
L
N