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Appendix
A
Commissioning checklist
No.
Procedure
1
Starting up the product
2
Checking that the flue gas sensor
works correctly
3
Check the entire gas route for tightness
4
Check the entire water route for tight-
ness
5
Measuring the chimney draught
6
Checking combustion
7
Checking the gas flow pressure
8
Setting the domestic hot water function
9
Handing over the operating instructions
to the customer
10
Stick the sticker "Read the operating
instructions" on the front of the product,
in the language spoken by the end
user
B
Troubleshooting
Symptom
The product cannot be started
up. The ignition flame does not
ignite.
The ignition flame goes out
after the rotary power switch
is released.
The ignition flame is burning but
the product does not start up.
The product switches off during
operation.
0020271943_00 atmoMAG Installation and maintenance instructions
Comment
See section "Checking that the flue gas
sensor works correctly".
Use leak detection spray or a leak
detector.
Carry out a visual check.
The maximum draught must not ex-
ceed 15 Pa. If the draught is too great,
the chimney draught must be restricted
using suitable measures.
Check for flue gas exit.
Target value for nominal heat input:
Only carry out the measurement after
ten minutes of normal operation.
–
Natural gas: CO 200 ppm
Liquefied petroleum gas: CO
300 ppm
See section "Checking the gas flow
pressure".
Possible cause
The gas supply is interrupted.
There is air in the gas supply
line.
The Piezo igniter is defective.
The safety cut-out or flue gas
sensor is defective.
The safety cut-out has been
triggered or is defective.
The flue gas sensor is defect-
ive.
The thermoelectric voltage is
insufficient.
The cold-water isolation valve is
closed.
The strainer in the cold water
inlet is dirty.
Incorrect installation of the flue
gas guiding (flue pipe is too
short).
The flue gas guiding is restric-
ted, which causes overheating
(flue pipe is blocked).
Required tool
Vaillant flue gas restrictor
Leak detection spray/leak detector
Analyser for chimney draught
Dew point hygrometer
CO analyser
U-tube or digital manometer
Measure
1.
Secure the gas supply.
2.
For liquefied petroleum gas: Replace an empty gas cylinder
with a full one.
3.
Ensure that the isolation valve on the gas connection is
open.
▶
Open and close the water tap several times in order to remove
air from the gas supply.
▶
Replace the entire thermocouple.
1.
Check the safety cut-out and flue gas sensor.
2.
Replace the defective component.
▶
Replace the entire thermocouple.
▶
Replace the entire thermocouple.
▶
Replace the entire thermocouple.
▶
Ensure that the cold-water isolation valve is open.
▶
If required, clean the strainer in the cold water inlet.
▶
Check that the flue system has been installed correctly and
that there are no problems with the flue system.
▶
Check that the flue system has been installed correctly and
that there are no problems with the flue system.
Appendix
21
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