Modulex Light Commercial Series
CHAPTER 9: Spare Parts Drawings and Lists
OMM-0158_A
• 6/28/2022 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
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CHAPTER 8:
MAINTENANCE SCHEDULE
The boiler must receive regular, annual maintenance and cleaning in order to ensure reliable and
efficient operation. Regular maintenance will prolong the life of the boiler. Refer to Table 8-1 for
a suggested schedule of maintenance procedures.
C A U T I O N !
To ensure the continued safe and efficient operation of the boiler it is highly recommended that
it be checked at regular intervals and serviced when necessary, and that only original spare parts
be used. Regular maintenance will prolong the life of the boiler.
W A R N I N G !
If the boiler is not checked and serviced regularly it could cause damage to the equipment and/or
harm to persons.
TABLE 8-1: Modulex EXT Maintenance Schedule
MAINTENANCE OPERATION
ONCE A YEAR
EVERY 2 YEARS
Inspect circulating and feed water quality and chemistry.
●
Inspect gas assembly components.
●
Inspect safety devices for water and gas.
●
Inspect and clean the combustion chamber & burners.
●
Inspect and clean flame rod and ignitor.
●
Inspect and clean the fan/blower.
●
Check the operation of the fan/blower.
●
Check gas pressure and adjust if necessary.
●
Inspect and clean the flue exhaust assembly.
●
Check all water connections and valves.
●
Do combustion analysis and recalibrate if necessary.
●
Check electrical and electronic components
●
Inspect condensate drain pipe and trap, clean if necessary.
●
Check flow switch in the CSD-1 manifold for proper function.
●
8.1 Instructions For Inspection And Maintenance
W A R N I N G !
To ensure a long life of the boiler ONLY original AERCO spare parts may be used.
1. Disconnect the mains electrical supply to the boiler.
2. Separate the boiler from the electrical supply by means of a separating device with an open
contact of at least 3 mm (for example, safety devices or power switches) and ensure that it
cannot be accidentally connected to power.
3. Close the external ON-OFF gas valve installed upstream of the boiler.
4. If necessary, and in keeping with the type of work to be carried out, close any ON-OFF valves
fitted on the C/H flow and return pipes, as well as the cold water inlet valve.
5. Remove the boiler front panel.
6. Follow all official instructions and accepted standards and regulations.
7. After completing all the necessary maintenance work, always follow these steps:
