8 Maintenance and service
8
.2 Service plan
Components Criteria / design lifespan
(1
Maintenance or service procedure
B
lower wheel Soiling Clean
Damage Replace
Air duct Soiling Clean
Air damper Soiling Clean
Air pressure switch Switch point Check
250,000 burner starts or 10 years
(2
Replace
Ignition cable Damage Replace
Ignition electrode Soiling Clean
Damage / wear Replace
Combustion manager 250,000 burner starts or 10 years
(2
Replacement recommended
Ionization cable Damage Replace
Ionization electrode Soiling Clean
Damage / wear Replace
Recommendation: at least every 2 years
Flame tube / diffuser Soiling Clean
Damage Replace
Gas valves Fault identified Replace
100,000 burner starts or 10 years
(2
Replace
Gas pressure regulator Setting pressure Check
Function / soundness Replace
15 years Replace
Gas pressure switch Switch point Check
50,000 burner starts or 10 years
(2
Replace
(1
The specified design lifespan applies for typical use in heating, hot water and steam
systems, as well for thermal process systems.
(2
If a criteria is met, perform the maintenance or service procedure.
48
Installation and Operating Instructions
G
as burner WG20.../1-C ZM-LN (W-FM 25)
83055116 • 1/2016-05
48
Installation and Operating Instructions
G
as burner WG20.../1-C ZM-LN (W-FM 25)
83055116 • 1/2016-05