48
1.
4.
3.
2.
Fig. 39
1.
Pivot the HMU heat management unit forwards.
2.
Undo the hose retainer. Remove the supply hose.
!
Please note
Do not undo using a sharp object. This can
damage the condensate hose.
The hose retainer is detachable.
3.
Undo hose clip and pull off drain hose.
4.
Release trap from retaining clip.
Hold trap as straight as possible and remove.
Ensure that no condensate runs out.
5.
Clean the trap.
6.
Refit the trap.
7.
Refit the hoses. Secure the drain hose with the
hose clip and attach the supply hose with the
retainer.
8.
Check that connections on the trap and the heat
exchanger are seated correctly.
Note
Route the drain hose without any bends and with a
constant fall.
9.
Flush the heating surface again with min. 0.3 l of
water. This will also fill the trap with water.
!
Please note
If the trap is not filled with water, flue gas
can escape.
Only start the appliance when the trap has
been filled.
Danger
Risk of electric shock from escaping conden-
sate and risk of poisoning from escaping flue
gas.
Check the connections for leaks and check
that the trap is seated correctly.
Commissioning, inspection, maintenance
Checking the condensate drain and cleaning the…
(cont.)
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