Viessmann B1HF - Checking the Condensate Drain and Cleaning the Trap

50
3. Check condensate drain. Clean the trap: See the
following chapter.
4. Check the thermal insulation mat (if installed) in the
heat exchanger for damage, replace if necessary.
Checking the condensate drain and cleaning the trap
!
Please note
Prevent damage due to condensate.
Cover electronic components with suitable
watertight material.
3.
4.
Fig. 36
1. Pivot the HBMU heat management unit forwards.
2. Cover electronic components with suitable water-
tight material.
3. Remove the black supply hose.
4. Pull trap upwards out of the drain hose.
5. Hold trap as straight as possible and remove.
Ensure that no condensate runs out.
6. Clean the trap.
7. Fill the trap with water and refit it on the drain hose.
!
Please note
If the trap is not filled with water, flue gas
can escape.
Only start the appliance when the trap has
been filled.
Check that the trap is seated correctly.
8. Refit supply hose.
Commissioning, inspection, maintenance
Cleaning the heating surfaces (cont.)
6167586