To Connect The Changeover To External Heat Source; To Connect The Power Consumption Digital Inputs - Daikin Altherma 3 R F Installer's Reference Manual

8 | Electrical installation

8.3.9 To connect the changeover to external heat source

8.3.10 To connect the power consumption digital inputs

Installer reference guide
104
Wires: 2×0.75 mm²
Maximum load: 0.3 A, 250 V AC
Minimum load: 20 mA, 5 V DC
[A.2.2.6.1] Ext. backup heat src
1 Open the following (see
1 Top panel
2 Upper front 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.
A
B
A
B
a Installation of EKRP1HBAA is required.
3 Fix the cable with cable ties to the cable tie mountings.
Wires: 2 (per input signal)×0.75 mm²
Power limitation digital inputs: 12 V DC / 12 mA detection (voltage
supplied by PCB)
[A.6.3] Pwr consumpt. control
"6.2.4 To open the indoor
N
X2 X1
A4P
4
unit" [ 54]):
1
L
X2 X1
X2M
a
ERLA03DAV3 + EHFH03S18DJ3V
Daikin Altherma 3 R F
4P596806-1 – 2019.10
3
2