Following service procedures must be performed by qualified service agent. Boiler owner shall not attempt
these steps. Failure to do so could result in death or serious injury.
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 (Group1). Avoid breathing dust and contact with skin and eyes. Use 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 the 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.
Before servicing, turn off electrical power to boiler at service switch. Close manual gas valve to turn gas supply
OFF to boiler. Test for gas leaks on any gas carrying components after servicing. Service not complete until
appliance operation verified per Installation, Operation & Maintenance Manual provided with boiler.
Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous
operation. Failure to follow these instructions could result in minor or moderate injury.
Perform regular service and maintenance by qualified service agency at least once every 12 months to assure
safe, trouble free operation and maximum efficiency.
11.2 Maintenance And Routine Servicing
Check and service boiler as necessary.
Frequency of servicing will depend upon installation conditions and usage, manufacturer recommends annually.
• Check flue terminal outside and ensure it is not blocked.
• Operate boiler. Check operation of boiler's controls.
• Ensure all system connections and fittings are sound. Correct any joints and fittings that maybe leaking.
• Follow safety valve manufacturer recommendations for service.
To ensure boiler operates at peak efficiency, following checks must be performed every year:
• check appearance and tightness of gas and combustion circuit gaskets
• check condition and position of ignition and flame sensing electrodes
• check condition of burner and its connection to aluminum front plate
• check for dirt in combustion chamber. Use vacuum cleaner for this cleaning operation
• check gas valve is calibrated correctly
• check there is no dirt in condensate trap
• check central heating system pressure
• check expansion tank pressure
• check vent system, clean if necessary
Record details and maintain service history.
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CAUTION
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