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Commissioning, inspection, maintenance
Checking the gas train filter element
6. Check for gas tightness.
Danger
Escaping gas leads to a risk of explosion.
Check the gas train for gas tightness.
!
Please note
The use of leak detection spray can result in
faulty operation.
Leak detection spray must not come into
contact with electrical contacts.
Note
Only use suitable and approved leak detection
agents (EN 14291) and devices for the tightness
test. Leak detection agents with unsuitable constit-
uents (e.g. nitrides, sulphides) can cause material
damage.
Remove residues of the leak detection agent after
testing.
Checking the filter element in the gas line
If a filter element is fitted in the gas line, check the filter
element and clean or replace if necessary.
Checking the gas connections for tightness
Danger
Escaping gas leads to a risk of explosion.
Check all gas equipment for tightness.
1. Insert new gaskets in all gas fittings that have been
opened and retighten them.
2. Open the gas shut-off valve.
!
Please note
The use of leak detection spray can result in
faulty operation.
Leak detection spray must not come into contact
with electrical contacts.
Performing final checks
Enter the actual values into the report.
Closing the boiler casing
Close the boiler again in reverse order to Fig. 1 on
page 10.
28
(cont.)
Manufacturer's instructions for filter element
3. Check the inlet joints of the gas train for tightness.
4. Commissioning the system (see page 13).
5. Check for tightness:
■
Outlet joints of the gas train
■
Joint between the fan and the fitting
Joint between the fan and the supply air collector
■
Note
Only use suitable and approved leak detection agents
(EN 14291) and devices for the tightness test. Leak
detection agents with unsuitable constituents (e.g.
nitrides, sulphides) can cause material damage.
Remove residues of the leak detection agent after test-
ing.
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