©
HDG Bavaria GmbH 07/2008
HDG Compact 99 - 200 - Version 1 - en
7 Cleaning and servicing the heating system – Procedure
143
3.
Remove the cover (4) from the front hatch.
4.
Unscrew the DN 40 union nuts on the connection pieces of the
feed system (1) and on the connection pieces on the boiler (2)
using a pipe wrench.
5.
Detach the pressure equalisation hose (2).
6.
Inspect the pressure equalisation hose (2) for dirt and dislodge it if
necessary by forceful shaking and careful bending.
7.
Check both connections (1, 3) for dirt and remove it if necessary.
8.
Mount the pressure equalisation hose in the reverse sequence.
9.
Switch the heating system on again.
✎
See the chapter entitled “6 Using the heating system”, section “6.2
Switching on the heating system”.
✓
The inspection and cleaning of the pressure equalisation hose is
completed.
C
HECKING
THE
FILL
LEVEL
INDICATOR
The steel pipe of the fill level indicator protrudes into the combustion
chamber. Constant contact with the fuel and flame can cause the fill
level indicator to wear.
1.
Switch the heating system off.
✎
See the chapter entitled “6 Using the heating system”, section “6.3
Switching off the heating system”.
2.
Allow the fire in the heating system to burn out and cool down.
3.
Remove the ash containers.
Figure 7/23 - Checking and cleaning the pressure equalisation hose
1
2
3
4
Important!
✎
See “Generally applicable safety instructions” in this section.
