To Connect The Changeover To External Heat Source - Daikin Altherma ERGA04E V3 Series Installer's Reference Manual

9.3.8 To connect the changeover to external heat source

ERGA04~08E + EHVH04+08SU18+23E
Daikin Altherma 3 R F
4P629090-1C – 2022.08
2 1
X2M 7 9
A4P Y2 YC
A
B
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.
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+2 Wires connected to the space
cooling/heating ON/OFF output
3 Wire between X2M and A4P
A4P Installation of EKRP1HBAA is
3
required.
7
7 9
X2M
b
9 Electrical installation
|
Y2
A4P
a
Installer reference guide
129