06/2016 - Art. Nr. 4200 1041 1103A
33
en
Servicing
Maintenance
Replacing the control unit
Burner and boiler servicing must only be
carried out by a professional heating
engineer trained in these operations. The
system operator is advised to take out a
maintenance contract to guarantee
regular servicing. Depending on the type
of installation, shorter maintenance
intervals may be necessary.
•
Before carrying out any maintenance
and cleaning operations, switch off
the mains power supply (control
c separate power supply to the
motor)
.
• Use original spare parts.
Work recommended as part of annual
burner maintenance:
- Burner test run, input measurement in
the boiler room
- Clean the combustion components
and replace defective parts if
necessary
- Clean the fan wheel and the fan
- Clean the gas filter; replace it if
necessary
- Visual inspection of burner electrics,
repair if necessary
- Check burner start characteristics
- Sealing test
- Burner safety devices function check
(air pressure/gas pressure switches)
- Flame monitor and automatic
combustion control unit function check
- Commissioning the burner
- Check the gas flow
- Correct the adjustment values if
necessary
- Draw up a measurement report
General checks
- Emergency stop button function check
- Visual inspection of gas lines in the
boiler room
The list contains the minimum number of switching cycles and the shortest possible service life for wear parts* and safety-related
components. The actual service life could be much higher and this depends on the operating conditions. For reasons of operational and
functional safety, the recommended periods of use should not be exceeded.
* Wear parts in the case of 25 years of machine usage
Safety-related components
Recom. useful
service life
Min. operating cycles
Valve testing systems
10 years
250 000
Gas and air pressure switches
10 years
-
Automatic firing device with flame monitor for the burner
10 years
250 000
Flame monitor (UV cells)
10,000 hours of operation
Flame monitor (not UV cells)
10 years
250 000
Gas pressure regulator
15 years
-
Gas valve with valve testing system
after a fault is detected
Gas valve without valve testing system
10 years
250 000
Pressure relief valve
10 years
-
Fuel-air ratio control
10 years
-
Servomotor STE…(Schneider Electric)
10 years
2 000 000
Servomotor SQM 1../2.. (Siemens)
Depends on usage
150 000
Servomotor SQM 5... (Siemens)
Depends on usage
250 000
Servomotor STM 30/40 (Schneider Elektrik)
10 years
500 000
Servomotor 01-15/30 Schimpf
10 years
2 000 000
Oil hoses
5 years
-
Fuel-oil valves
10 years
250 000
Pressure relief valve
10 years
-
Useful service life of wear parts *
Auxiliary relay
Depends on usage
50 000
Cooling fan frequency converter (ACS310)
3 years
25,000 hours of operation
Cooling fan frequency converter (ACH550)
6 years
60,000 hours of operation
Motor
40,000 hours of operation
Warning!
Replace any damaged or defective com-
ponents! Replace safety components
before their end of life! Never operate
the burner with damaged or defective
parts. Using defective or damaged com-
ponents may cause malfunctioning and
hazardous operation. This may result in
a switch to malfunction mode or damage
to the environment and to the installa-
tion, and may even cause injury (risks of
serious or fatal injury).