Viessmann 7441 770, Installation And Service Instructions For Contractors

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8
Note
During commissioning, instruct the sys-
tem user in the operation of the appli-
ance.
1. Insert the power plug.
2. Fill the system with water.
3. Test the function. Visually check for
leaks.
4. Record commissioning on
page 13.
Inspection and maintenance intervals
■ Regular inspection can be carried
out by the user or any authorised,
qualified person. Inspection should
initially be carried out at short inter-
vals, then as required, but at least
every 6 months
■ Maintenance work must be carried
out regularly subject to the volume
and contamination of the condensate,
but at least
once a year . It must be
carried out by an approved heating
contractor or personnel trained by
this approved heating contractor
Inspection
1. Open the condensate lifting system
cover.
2. Check filter basket for contamina-
tion and clean if required.
3. Check that the hoses are secure.
4. Check that the level switch and
overflow alarm switch are posi-
tioned correctly. Both must be fully
inserted into the locking ring fitting,
so that they rest against the locking
ring fitting.
5. Carry out a visual inspection of all
components for damage and leaks.
6. Close the condensate lifting system
cover again.
Commissioning and adjustment
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