
2. HARDWARE
B–62755EN/01
178
Method of cleaning heat exchanger fan
1 Detach the heat exchanger format the unit and either blow off with air,
wipe off with a dry cloth, or brush the accumulated dirt, condensation,
etc.
When the dirt is especially severe
1 Detach the internal fan unit, the terminal unit, and the cable from the
main unit.
Terminal unit and cable
Main unit
2 Using a neutral detergent, remove the dirt from the main unit fan
section by brushing. At this time, take care not to bend the fin of the
element.
3 After cleaning, dry well.
Method of installation after cleaning
After completing cleaning of the fan unit and heat transformer.
1 Install the terminal unit and cable in the original position.
2 Install the fan unit in the original position. At this time, do not forget
to connect the fan power cable and the earth cable.
D Cleaning heat exchanger
fan
D Installation