Cleaning The Sight Glass In The Boiler Door; Checking The Mixer For Ease Of Operation And Tightness; Checking The Draught Stabiliser (If Installed) - Viessmann VITOROND 200 Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps

Cleaning the sight glass in the boiler door

Check the gaskets and hose connection
for leaks.

Checking the mixer for ease of operation and tightness

1. Remove the motorised lever from the
mixer handle.
2. Check the mixer for ease of opera-
tion.

Checking the draught stabiliser (if installed)

Release the latch on the control disc.
16
(cont.)
3. Check the mixer for leaks. Replace
the O-ring gaskets if the mixer is leak-
ing.
4. Snap the motorised lever into place.
The control disc must swing freely during
burner operation.