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

5 Electrical installation
Installation manual
15
ETBH/X16DA6V+9W
Daikin Altherma 3 H HT W
4P586453-1B – 2020.01
7
9
YCY1
X2M
12
3
A4P
1+2 Wires connected to the alarm
output
3 Wire between X2M and A4P
A4P Installation of EKRP1HBAA is
required.
B
C
A
A
7Y1
CB
X2M
X2M
A4P
A4P
a
7 9
Y1YC
X1M
a Installation of EKRP1HBAA is required.
3 Fix the cable with cable ties to the cable tie mountings.
5.3.7 To connect the space cooling/heating ON/
OFF output
INFORMATION
Cooling is only applicable in case of:
▪ Reversible models
▪ Heating only models + conversion kit (EKHBCONV)
Wires: (2+1)×0.75mm²
Maximum load: 0.3A, 250VAC
—
1 Open the following (see "3.2.1To open the indoor unit"[45]):
1 Front panel
1
2
3
2 Switch box cover
3 Switch box
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 alarm
output
3 Wire between X2M and A4P
A4P Installation of EKRP1HBAA is
required.
B
C
A
A
7Y2
B
X2M
C
X2M
A4P
X1M
a
7 9
Y2YC
A4P
a Installation of EKRP1HBAA is required.
3 Fix the cable with cable ties to the cable tie mountings.
5.3.8 To connect the changeover to external
heat source
Wires: 2×0.75mm²
Maximum load: 0.3A, 250VAC
Minimum load: 20mA, 5VDC
[9.C] Bivalent
1 Open the following (see "3.2.1To open the indoor unit"[45]):
1 Front panel
1
2
3
2 Switch box cover
3 Switch box
2 Connect the changeover to external heat source cable to the
appropriate terminals as shown in the illustration below.