Cleaning The Heat Exchanger; Condensate Drain Check And Trap Cleaning - Viessmann Vitodens 100 Series Installation And Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps

Cleaning the heat exchanger

!
Please note
Scratches to the surfaces of the
heat exchanger that come into
contact with hot gas can result
in corrosion damage. Brushing
can cause deposits to become
lodged in the gaps between the
coils.
Never use brushes to clean
the heating surfaces.
!
Please note
Prevent damage due to cleaning
water.
Cover the control unit with suita-
ble watertight material.
Note
Discolouration on the heat exchanger
surface is a normal sign of use. It has
no bearing on the function and service
life of the heat exchanger.
The use of chemical cleaning agents is
not required.

Condensate drain check and trap cleaning

B
A A
50
(cont.)
A
1. Use a vacuum cleaner to remove
combustion residues from heating
surface A of the heat exchanger.
2. Flush heating surface A with
water.
3. Check condensate drain. Clean the
trap: See the following chapter.
4. Flush the heating surface again
with water. This will also fill the trap
with water.
1. Pull trap A upwards out of the
drain connection.
2. Remove supply hose B from
trap A.
3. Clean trap A.
4. Refit supply hose B.
5. Refit trap A to the drain connec-
tion.