Daikin Altherma 3 R F EHVZ04S18E 6V Series - To Connect the Changeover to External Heat Source

9 | Electrical installation
Installer reference guide
106
ERGA04~08EAV3(A) + EHVZ04+08S18+23EA6V+9W
Daikin Altherma 3 R F
4P629093-1 – 2020.08
A
Y17
B
A
B
7 9
X2M
A4P
Y1YC
X1M
a
b
a Installation of EKRP1HBAA is required.
b Prewiring between X2M/7+9 and Q1L (=thermal protector backup heater). Do NOT
change.
3 Fix the cable with cable ties to the cable tie mountings.
9.3.7 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 "7.2.4To open the indoor unit"[451]):
1 Top panel
1
2
3
2 User interface panel
3 Upper switch box cover
2 Connect the changeover to external heat source cable to the appropriate
terminals as shown in the illustration below.