8 Inspection and maintenance
18
Installation and maintenance instructions atmoMAG 0020271929_00
8.8
Removing the heat exchanger
D
B
C
A
Caution.
Risk of material damage caused by dam-
age to the heat exchanger.
Damage that occurs when installing and re-
moving the heat exchanger leads to prema-
ture wear.
▶
When installing or removing the heat ex-
changer, ensure that it does not become
damaged or bent out of shape.
▶
Remove the heat exchanger in the spe-
cified sequence.
1.
Unscrew the union nuts from the domestic hot water
connection on the heat exchanger.
2.
Unscrew the screw from the clamp for securing the do-
mestic hot water outlet.
3.
Remove the safety cut-out that is secured using a clip
on a pipe to the right on the heat exchanger.
4.
Remove the heat exchanger.
8.9
Cleaning the heat exchanger
1.
Use a spray of water to rinse through the fins of the
heat exchanger.
2.
Use a soft brush to remove the heavier soiling on the
fins of the heat exchanger.
–
Ensure that you do not bend the fins on the heat
exchanger.
3.
If required/necessary, remove any grease and dust by
adding a fat-dissolving cleaning agent to a container of
hot water.
4.
Use a commercial descaler to remove any limescale,
while taking into consideration the corresponding docu-
mentation.
5.
Rinse the heat exchanger under running water.
8.10
Repairing any damage to the coating of the
heat exchanger
1.
Use a Supral pen to repair minor damage to the heat
exchanger coating.
2.
Ensure that the damaged area is free from deposits and
greasy residues.
3.
Shake the Supral pen vigorously before use.
4.
Apply the coating material thinly and evenly.
8.11
Checking the water valve
A
B
2
3
1
1.
Remove the cold water connection line from the cold
water connection
(2)
.
2.
Visually check the cold water strainer
(3)
that is down-
stream of the cold water connection for dirt and scale.
3.
If the cold water strainer is dirty or calcified, remove the
clamp
(1)
and pull out the cold water connection.
4.
Remove the cold water strainer from the cold water
connection and clean the cold water strainer.
5.
Reinsert the cold water strainer into the cold water con-
nection.
6.
Reinsert the cold water connection into the product's
retainer and secure the clip.
7.
Secure the cold water connection line to the cold water
connection again.
8.
Check whether the temperature selector spindle can be
turned. Otherwise, loosen the clamps on the temperat-
