54
Installation and maintenance instructions ecoTEC plus 937 0020031552_06
8.2.2 Cleaning the integral condensation heat
exchanger
b
Caution!
Risk of damage to the electronics.
Water may damage the electronics and cause
power failures.
Protect the open switch box from spray
water.
Dismantle the compact thermo module as described
under 8.2.1.
3
4
1
2
Fig. 8.4 Cleaning the heat-exchanger
b
Caution!
Possible material damage caused by loos-
ening or retightening the screws.
The primary heat exchanger may become
damaged.
You should neither loosen nor tighten the
four screws (
1
).
After removal of the burner and fan assembly you can
check the primary heat-exchanger (
4
).
Remove the loose deposits from the heating coils (
3
)
with a soft brush and a jet of water. Make sure that
water is kept away from all electrical components.
The water used to clean the primary heat-exchanger
runs away through the condensate siphon. Avoid
pointing the water jet directly at the insulating sur-
face (
2
) on the back of the heat exchanger.
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If necessary, the heat-exchanger can be cleaned using
ordinary vinegar.
8.2.3 Checking
the
burner
1
Fig. 8.5 Checking the burner
The burner (
1
) is maintenance-free and needs no clean-
ing.
Check the surface of the burner for damage. If neces-
sary, replace the burner.
After checking or replacing the burner re-fit the
thermo-compact module as described in Section
8.2.4.
8.2.4 Installing the compact thermal module
a
Danger!
Possible personal injury and material dam-
age caused by hot exhaust gases.
If you do not renew the seal and the self-lock-
ing nuts on the burner door, hot exhaust
gases may escape and cause personal injury
and material damage.
Replace the seal (
1
) and the self-locking
nuts each time you open the burner door
(e.g. when conducting maintenance and
service work).
Replace the insulating layer on the burner
door if it exhibits any sign of damage.
1
Fig. 8.6 Replacing the burner door gasket
Insert a new gasket (
1
) in the burner door.
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8 Inspection and maintenance
Summary of Contents for ecoTEC plus 937
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Page 74: ...74 Installation and maintenance instructions ecoTEC plus 937 0020031552_06...
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