Hitachi RWM-(H)FSN3E, Руководство по обслуживанию

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11 Servicing
SMGB0070 rev. 1 - 08/2011
323
11
7 Put the drive part onto the valve body, hold them with
their axes matching and attach the lock nut to the screw
part of the valve body.
8 Tighten the lock nut with spanner after tightening lightly
by hand. The tightening torque must be within the range
of: 12 N•m – 15 N•m.
9 After the replacement, attach the electronic expansion
valve in the reverse procedures for removing. Apply the
butyl sheet firmly.
N O T E
Do not apply great forces, such as the rotating torque
and the bending load, to the motor by holding the motor
by hand when you are tightening the lock nut. Although
the direction of the eccentric part of the motor is as -
sembled with the eccentric part of the motor directed
toward the counter direction of the fittings for piping at
the valve body, the alteration of this direction does not
affect the open/close function of the valve.
Therefore, the adjustment of the direction of the motor
part is not required if the position of the motor is moved
toward the rotating direction after the replacement, as
shown in the figure. However, make sure that the direc -
tion of the motor for the coil of the electronic expansion
valve does not touch other piping and the side plate of
the electrical box.
In case of In case of replacing mixing valve
10 Remove brazing from the two places, and then remove
expansion valve.
11 Install new one by performing the procedures above in
reverse way.

Replace plate heat exchanger
In case of remove plate heat exchanger and components.
1 Remove service cover.
2 Remover electrical box cover.
3 Turn electrical box by removing screws.
4 Remove manometer by perform procedure Replace ma-
nometer .
5 Remove LCD controller by perform procedure Replace
LCD controller .
6 Remove LCD control support by unscrewing nuts.
7 Remove drain stay by unscrew nuts.
8 Remove water band and refrigerant band.
Brazing