
2. INSTALLATION
B–63463EN/01
16
The control unit consists of a plastic box, fan motors and a PCB.
A fan is provided at the top of the control unit. The fan unit incorporates
a fan motor.
To enable easy removal and replacement of the fan unit, leave the space
(space ) shown in the figure below.
The air comes into the control unit from the bottom and goes out through
the fan motor, which is located on the top of the control unit. Space as
shown in Fig. 2.6.2 must be reserved not to disturb the air flow (,).
50mm or more
50mm or more
AIR FLOW
Fig. 2.6.2
IMPORTANT
Above the control unit, leave sufficient space (50 mm or
greater) to enable easy removal and replacement of the fan
unit.
If the fan unit cannot be removed, the fan cannot be
replaced. Nor can the fuse and the printed circuit board be
replaced.