LP-517 Rev. 000 Rel. 019 Date 7.21.20
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Part 13 - Maintenance
A. Procedures
Periodic maintenance should be performed once a year by a qualified
service technician to assure that all the equipment is operating safely
and efficiently. The owner should make necessary arrangements with
a qualified heating contractor for periodic maintenance of the boiler.
The installer must also inform the owner that a lack of proper care and
maintenance of the boiler may result in a hazardous condition.
BEFORE EACH HEATING SEASON a trained and qualified service
technician should perform the inspections as per the boiler
inspection and maintenance schedule in this manual. Failure to do
so could result in death or serious injury.
The combustion chamber insulation in this product contains ceramic
fiber material. Ceramic fibers can be converted to cristobalite in
very high temperature applications. The International Agency for
Research on Cancer (IARC) has concluded, “Crystalline silica inhaled
in the form of quartz or cristobalite from occupational sources is
carcinogenic to humans (Group 1).”
• Avoid breathing dust and contact with skin and eyes.
• Use a NIOSH certified dust respirator (N95). This type of
respirator is based on the OSHA requirements for cristobalite at
the time this document was written. Other types of respirators
may be needed depending on job site conditions. Current
NIOSH recommendations can be found on the NIOSH website:
http://www.cdc.gov/niosh/homepage.html. NIOSH approved
respirators, manufacturers, and phone numbers are also listed
on this website.
• Wear long-sleeved, loose fitting clothing, gloves, and eye
protection.
• Apply enough water to the combustion chamber lining to
prevent dust.
• Wash potentially contaminated clothes separately from other
clothing. Rinse clothes washer thoroughly.
NIOSH stated First Aid.
• Eye: Irrigate immediately.
• Breathing: Fresh air.
Do not use solvents to clean any of the burner components. The
components could be damaged, resulting in unreliable or unsafe
boiler operation, substantial property damage, severe personal
injury, or death.
Figure 34 - Igniter Detail
The boiler door can be opened to aid in mounting the burner and
other combustion components, and to clean the combustion chamber.
It should be closed with the proper torque before starting the boiler.
NOTE:
Whenever opening or closing the combustion chamber door,
(ensure you have personal protective equipment (PPE) in place. Wear
an N95 certified dust respirator, eye protection, and gloves.
Figure 30 - Open Combustion Chamber Door
Figure 31 - Combustion Chamber Door Hinge
The recommended torque for closing the door should be between
14 and 22 ft/lb. Use an appropriate torque wrench to control that
value. Otherwise use the standard door handle (whose length is
220 mm) with a force between 66 and 100 ft/lb.
Tighten the hinges in a pattern (top left, bottom right, top right,
bottom left) to ensure a proper seal.
B. Closing the Combustion Chamber Door
Figure 32 - Setting the Torque Wrench
Figure 33 - Closing the Combustion Chamber Door
