Wolf WD-A Operation & Maintenance Manual page 23

AIR HEATER WD-A, WD-U
10
Stopping Procedure, Dismantling and Elimination
Fan, motor, protective grille
(one unit)


1. Switch off and lock the main switch.
2. Disconnect the electrical supply line and the electrical connection in the terminal box.
3. Shut off and dismantle the hot water supply and return.
4. Remove the unit from the suspension.
Remove the M8  fastening screws on the side and remove the unit.
5. Remove the air discharge damper and the rear panel with the fan by loosening the self-tapping screws
6. Unscrew the sheet metal screws
lateral direction. Remove the heat exchanger.
7. If necessary, remove the motor with protection grille from the rear wall by loosening the screw
Casing

Heat exchanger
Rear wall
diagonally at the lateral corners and remove the outer casing halves in

23 23

Discharge
louvre



.

.