Shutting Down The Heating System; Opening The Boiler Door; Separating The Neutralising System (If Installed) From The Boiler And Connecting The Drain Hose - Viessmann Vitocrossal 200 Service Instructions Manual

Initial start-up, inspection, maintenance
Further details regarding the individual steps

Shutting down the heating system

1. Switch OFF the mains isolator or
the power supply and safeguard
against unauthorised reconnection.

Opening the boiler door

1. Remove the gas supply pipe.
2. Undo the four screws on the boiler
door and open the door.
Separating the neutralising system (if installed) from the
boiler and connecting the drain hose
20
(cont.)
2. Pull plug connector fA and lÖ
from the burner.
3. Close the gas shut off valve.
!
Please note
Scratches inside the combus-
tion chamber can lead to corro-
sion.
Never put tools or other objects
into the combustion chamber.
1. Separate hose A to the neutralis-
ing system from siphon B.
2. Connect drain or cleaning hose C
to the siphon and run it into a
sewer.