Trane Mitsubishi Electric CITY MULTI Series Technical & Service Manual page 40

OPERATING PROCEDURE
5. Removing the electrical box
(1) Remove the intake grille and the filter. (See Procedure 1.)
(2) Remove the electrical box cover. (See Procedure 2.)
(3) Disconnect the connectors. (Refer to procedure 4.)
(4) Remove the 2 electrical box fixing screws (M5 × 10). (See
Photo 3.)
<Electrical parts contained in the electrical box>
· Terminal block for power supply (TB2)
· Indoor controller board
· Room temperature detection thermistor (TH21)
(5) Pull the electrical box to remove by removing it from 2
holders.
6. Removing the turbo fan
(1) Remove the electrical box. (See Photo 3 and refer to 5.)
(2) Remove the bell mouth (tapping screw 4×10: 2 screws).
(See Photo 6.)
(3) Remove the nut (M8 × 1) and a washer. (See Photo 7
and 8.)
(4) Remove the turbo fan. (See Photo 9.)
Note 1: When assembling the turbo fan, attach it so that
its tabs fit the holes of washer.
Note 2: Nut tightening torque: 4.5 ± 0.5 Nm.
Turbo fan
tabs
Photo 8
Turn this way to tighten.
(The same directions as the fan rotation.)
OCHT746A
Washer
holes
Turn this way to loosen.
PHOTOS/FIGURES
Photo 6
Bell mouth fixing screws
Nut and washer
Photo 7
Nut and washer
< Nut and washer >
Photo 9
40
Bell mouth
Turbo fan
Electrical box
Turbo fan