Checking The Condensate Drain And The Neutralising System (If Installed); Checking The Burner Gauze Assembly - Viessmann VITOCROSSAL 200 CM2 Service Instructions For Contractors

Commissioning, inspection, maintenance
Cleaning and reconnecting the condensate drain...
1. Undo 4 screws and remove the centre and bottom
back panels.
2. Separate hose to the neutralising system (if
C
installed) from siphon
3. Connect drain or cleaning hose
route it to the drainage system.
4. Clean the inside of the condensate drain system
(hose, pipes).
5. Fill the combustion chamber with water.
Note
The water must flow from the condensate drain
pipe without backing up.
If necessary, clean the condensate drain pipe
again.
6. Clean the neutralising system (if installed) in
accordance with the manufacturer's instructions.
Neutralising system operating instructions
Note
The neutralising agent can be ordered with part no.
9521702.

Checking the condensate drain and the neutralising system (if installed)

Fill the combustion chamber with water.
Note
The water must flow from the condensate drain pipe
without backing up.
If necessary, clean the condensate drain pipe again.

Checking the burner gauze assembly

Danger
Escaping gas leads to a risk of explosion.
Close the gas shut-off valve.
26
.
B
to the trap and
D
(cont.)
7. Undo and flush lower part
8. Fill lower part of trap
A
semble.
9. Refit the condensate drain system and the back
cover panel.
Note
The hose connection to the on-site condensate
system or to the neutralising system must not be
permitted to sag; support with a pipe if necessary.
A of trap B .
with water and reas-
B