Hitachi RAS-(3-6)HVNC1(E) Service Manual page 388

10 Servicing
10.4.5 Removing outdoor fan motor
1 Remove the service cover following "10.4.1 Removing service cover".
2 Remove the outlet grille following
3 Remove the upper cover following "10.4.3 Removing upper cover".
4 To remove the propeller fan remove the cap nut and washer which fix the propeller fan onto the motor shaft. (Use a
puller when the propeller fan and motor shaft are fixed too tightly).
1 Upper cover
5 Remove the fan motor connector from PCB in the electrical box.
Cut the plastic tie with nippers which fixes the fan motor lead wire onto the motor clamp.
Remove 4 screws which fix the motor.
Model
DC Fan Motor
Fan Motor Comp
number
AC Fan Motor
DC Fan Motor
Screws for motor
fixing.
AC Fan Motor
1. Motor clamp.
2. Fan motor lead wire.
3. Plastic tie.
4. DC Fan Motor.
5. AC Fan Motor.
N O T E
1 To mount the motor be sure to place the lead wire outlet downward. (Adjust the propeller fan and shroud not to contact
with each other).
2 Fix the motor lead wire onto the motor clamp using a plastic tie as shown in the table on the previous page to avoid
obstructing the propeller fan.
3 Mounting propeller fan: Insert the skidding protection part of the fan boss matching with the motor shaft notch; tighten
the nut after the shaft screw fully comes out. (Tightening Torque 20 Nm)
4 Connect the motor lead wire to PCB1 of the electrical box. (Be sure to match colors of the PCB connectors and motor
lead wire connectors).
5 Be sure to attach the outlet grille onto the shroud after replacing the fan motor.
374
SMGB0087 rev.0 - 12/2013
"10.4.2 Removing air outlet grille"
1
1 Fan motor lead wire.
Motor clamp.
2
Motor.
3
Screw with spacer.
4
RAS-(4-6)H(V)NP1E
Inverter PCB
CN202 (Red)
Inverter PCB
CN201 (White)
4 x M4 screw (with spacer)
4x M4 screws
2
1
4
3
5