
7 Cleaning and servicing the heating system – Requirements
162
C
HECKING
AND
CLEANING
THE
PRESSURE
EQUALISATION
HOSE
1.
Set the control to the operating mode
OFF
.
✓
The
OFF
symbol lights up.
2.
Allow the fire in the heating system to burn out and cool down.
3.
Turn the main switch off.
4.
Use a pipe wrench to release the DN 40 union nuts on the feed
system connection nozzle (2) and on the boiler connection nozzle
(1).
5.
Detach the pressure equalisation hose (3).
6.
Inspect the pressure equalisation hose (3) for dirt and dislodge it if
necessary by forceful shaking and careful bending.
7.
Mount the pressure equalisation hose in the reverse sequence.
✓
The inspection and cleaning of the pressure equalisation hose is
completed.
The pressure equalisation hose is only available with the HDG Com-
pact 45/50/65/80 boiler.
Important!
✎
See “Generally applicable safety instructions” in this section.
Figure 7/19 - Checking and cleaning the pressure equalisation hose
1
2
3
Summary of Contents for Compact 25
Page 1: ...hdg bavaria com HDG Compact 25 80 Operation Manual ...
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Page 186: ...12 Index 186 HDG Compact 25 35 Version 2 de HDG Bavaria GmbH Oktober 2007 ...
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