Daikin Altherma 3 R W - To Connect the Changeover to External Heat Source

9 | Electrical installation
Installer reference guide
137
ERLA11~16D + EBBH/X11+16D
Daikin Altherma 3 R W
4P643603-1B – 2022.05
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.
9.3.8 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 Open the following (see "7.2.4To open the indoor unit"[481]):
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.