©
HDG Bavaria GmbH 07/2008
HDG M299/300/350/400 - Version 1 - en
7 Cleaning and servicing the heating system – Procedure
149
C
LEANING
THE
IGNITION
FAN
1.
Activate the maintenance function.
✎
See section “Maintenance function” in this chapter.
2.
Allow the fire in the heating system to burn out and cool down.
3.
Pull the ignition fan (1) out of the retainer.
4.
Unscrew the four M4 stainless steel slotted screws (4) of the hot air
nozzle (5).
5.
Pull off the hot air nozzle (5).
6.
Remove the insulating tube (6) and the seal (3).
7.
Pull the heating element (2) out of the plug contacts (7).
Important!
✎
Observe the “Generally applicable safety instructions” in this
section.
Caution!
Danger of burns from hot surfaces
The hot air nozzle of the ignition fan becomes very hot during
operation. Even when turned off, it cools down very slowly.
Switch the heating system off and only start with the cleaning and
maintenance work once the hot air nozzle has cooled down.
Figure 7/18 - Disassembling the ignition fan
1
Figure 7/19 - Cleaning the ignition fan
4
3
2
1
5
6
7
Summary of Contents for M299
Page 1: ...hdg bavaria com HDG M299 300 350 400 Operation Manual ...
Page 2: ......
Page 172: ...172 HDG M299 300 350 400 Version 1 de HDG Bavaria GmbH Juli 2005 NOTICE ...
Page 173: ...173 NOTICE ...
Page 174: ...174 HDG M299 300 350 400 Version 1 de HDG Bavaria GmbH Juli 2005 NOTICE ...
Page 175: ......