Daikin Altherma ERGA04E V3 Series, Installer'S Reference Manual

Page: 129 / 296

9 | Electrical installation
Installer reference guide
129
ERGA04~08E + 23E
Daikin Altherma 3 R F
4P629090-1C – 2022.08
7 9
YC Y2
X2M
1 2
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.
A
Y2 7
B
A
B
7 9
X2M
A4P
Y2
YC
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.
9.3.8 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