Service manual
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Remote controller of COOL ONLY type is outdoor unit accessory.
Remote controller is included as an indoor unit accessory.
Compressor contactor (52C) has changed. Compressor
contactor for E2,E3,E4 are interchangeable with the ones for E1.
Compressor has changed. Compressors for E3 and E4 are not
interchangeable with the ones for E1 and E2.
Compressor capacitor has changed. Due to different shape,
compressor capacitor for E4 is not interchangeable with the
ones for E1, E2 and E3.
Fuse has been removed.
Wiring diagram has changed because fuse was removed.
The shape of propeller fan has changed. The number of
propeller fan has changed from four to three. Propeller fan for E4
is not interchangeable with the ones for E1, E2 and E3.
The shape, diameter of axis and fan speed of fan motor have
changed. Fan motor for E4 is not interchangeable with the ones
for E1, E2 and E3.
Fan motor capacitor has changed. 1.5+➔ 2.0+
Fan motor capacitor for E4 is not interchangeable with the
ones for E1, E2 and E3(MU-12RV only).
Refrigerant filing capacity has changed. 0.85kg➔ 0.80kg
The method of troubleshooting for outdoor unit has changed.
The repairing procedure when outdoor unit does not stop
has been added to troubleshooting.
Circle shows that change points apply to the models.
Change point
No.
MU-07RV-
E1
E2
E3
MU-09RV-
E1
E2
E3
MU-12RV-
E1
E2
E3
E4
E4
E4
OB252C-1.qxp 02.4.25 11:27 AM Page 4