8
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Electrical installation
Installer reference guide
101
EPRA14~W1 + ET9W
Daikin Altherma 3 H HT F
4P587503-1A – 2020.01
7 9
YC
Y2
X2M
1
2
3
A4P
1+2
Wires connected to the alarm 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.
8.3.8 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
"6.2.5 To open the indoor unit"
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.
Summary of Contents for Altherma 3 H HT EPRA18DAW1
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