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Electrical installation
Installer and user reference guide
112
LREN8~12A7 + LRNUN5A7
CO₂ ZEAS outdoor unit and capacity up unit
4P704142-1 – 2022.08
16.6 Connections to the capacity up unit
NOTICE
▪
Be sure to keep the power line and transmission line apart from each other
(≥50 mm). Transmission wiring and power supply wiring may cross, but may not
run parallel.
▪
Transmission wiring and power supply wiring may NOT touch internal piping in
order to avoid wire damage due to high temperature piping.
▪
Firmly close the lid and arrange the electrical wires so as to prevent the lid or
other parts from coming loose.
Low voltage wiring
▪
DIII transmission wiring
▪
Remote switches (operation, low noise)
High voltage wiring
▪
Output signals (caution, warning, run)
▪
Power supply (including earth)
16.6.1 Low voltage wiring – Capacity up unit
Connections/routing/fixing
b c
2
1
3
X3M
a
F2
F1
F1
X1M (A1P)
F2 Q1 Q2
TO
MULTI UNIT
TO
OUT/D UNIT
TO
IN/D UNIT
b/c a
X1M (A1P)
X3M
1
2
X1M (A1P)
DIII transmission wiring:
a: To outdoor unit
X3M
Remote switches:
b: Remote operation switch
c: Remote low noise switch
X1M (A1P)
X3M
d
1
2
d
Wiring intake (knockout hole) for low voltage. See
