Daikin ERLA03DAV3 - To Connect the Space Cooling;Heating ON;OFF Output

9 | Electrical installation
Installer reference guide
103
ERLA03DAV3 + EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1B – 2021.10
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.
9.3.8 To connect the space cooling/heating ON/OFF output
Wires: (2+1)×0.75mm²
Maximum load: 0.3A, 250VAC
—
1 Open the following (see "7.2.4To open the indoor unit"[455]):
1 Top panel
1
2
3
2 Upper front panel
3 Upper switch box cover
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 space
cooling/heating ON/OFF output
3 Wire between X2M and A4P
A4P Installation of EKRP1HBAA is
required.