HDG Compact 25, Operation Manual, Page: 56 / 188

4 Planning and installation – Installing the heating system
56
I
NSTALLING THE COMBUSTION FAN
1. Unscrew the cover of the circuit boards (1) with a Phillips-tip
screwdriver.
2. Unscrew the ash removal cover (2) with a Phillips-tip screwdriver.
3. Release the four 5 mm M6 hexagon socket screws (3) of the intake
for the combustion fan on the air control unit.
4. Fasten the combustion fan (1) (with a seal placed in between) to
the air control unit using the four 5 mm M6 hexagon socket
screws.
✓
The combustion fan is installed.
The combustion air fan is only available with the HDG Compact 45/
50/65/80 boiler.
Figure 4/14 - Installing the combustion fan
2
1
3
Figure 4/15 - Installing the combustion fan
1