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9
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Electrical installation
9.3 Connections to the indoor unit
Installer reference guide
120
Connecting to the
frame
NOTICE
Precautions when making knockout holes:
▪
Avoid damaging the casing and underlying piping.
▪
After making the knockout holes, we recommend to remove the burrs and paint
the edges and areas around the edges using repair paint to prevent rusting.
▪
When passing electrical wiring through the knockout holes, wrap the wiring with
protective tape to prevent damage.
7 Reattach the service cover. See
8 Connect an earth leakage circuit breaker and fuse to the power supply line.
Item
Power supply (main)
Power supply (backup
heater)
Shut-off valve
Electricity meters
Domestic hot water pump
Alarm output
Space cooling/heating
operation control
When cables are routed from the unit, a protection
sleeve for the conduits (PG insertions) can be
inserted at the knockout hole.
When you do not use a wire conduit, protect the
wires with vinyl tubes to prevent the edge of the
knockout hole from cutting the wires.
A
B
a
c d
b
A Inside of the outdoor unit
B Outside of the outdoor unit
a Wire
b Bush
c Nut
d Frame
e Hose
"7.2.3 To close the outdoor
Description
See
"9.3.1 To connect the main power
4
supply" [
123].
See
"9.3.2 To connect the backup heater power
4
supply" [
125].
See
"9.3.3 To connect the shut-off
See
"9.3.4 To connect the electricity
See
"9.3.5 To connect the domestic hot water
4
pump" [
130].
See
"9.3.6 To connect the alarm
See
"9.3.7 To connect the space cooling/heating ON/
4
OFF
output" [
132].
e
4
unit" [
77].
4
valve" [
128].
4
meters" [
129].
4
output" [
131].
ERLA11~16D + EBVH/X11+16S18+23D
Daikin Altherma 3 R F
4P643602-1B – 2022.05
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