Viessmann Vitodens 222-F Installation And Service Instructions For Contractors page 42

Commissioning, inspection, maintenance
Checking the condensate drain and cleaning the...
Fig. 33
01. Pivot the control unit forwards. Remove cover
panel and insulating cover from DHW cylinder.
02. Disconnect condensate hose
03. Turn internal pipe
B
04. Disconnect corrugated hose
05. Turn lute, tilt slightly and pull downwards.
!
Please note
To prevent water escaping when removing
the lute, seal off the condensate drain.
42
from the trap.
A
and pull upwards.
from lute .
C D
(cont.)
A
B
C
D
06. Clean the internal pipe and lute.
07. Fill lute with water, refit it and push on corruga-
D
ted hose
C
08. Reassemble the trap in reverse order.
09. Check that the condensate pipe is connected cor-
rectly to the trap and heat exchanger.
Note
Route the drain hose without any bends and with
a constant fall.
10. Fit cover panel and insulating cover and secure
control unit back in operating position.