NTI TRX150, Руководство пользователя

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Part 14 - Maintenance
Cleaning the Heat Exchanger Combustion Chamber
*Before beginning this procedure, have on hand the following items:
• a nylon or other non-metallic brush
• an FDA approved liquid lime scale remover in a spray bottle
• gloves and eye protection
1. Remove the silencer.
3. Remove the gas diaphragm (if present).
4. Disconnect the electrical connections from the electrodes, igniter,
and blower.
5. Unscrew the four (4) nuts on the burner door and remove it.
2. Unscrew the two nuts and remove the gas pipe.
WARNING
WARNING
Water drained from the boiler could be scalding hot. Wait for
the boiler to cool before draining water, and take precautions
when draining water. Failure to do so could result in property
damage, personal injury, or death.
Allowing the boiler to operate with a dirty combustion
chamber will hurt operation. Failure to clean the heat
exchanger as needed by the installation location could result
in boiler failure, property damage, personal injury, or death.
Such product failures ARE NOT covered under warranty.
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.
Figure 82 - Remove the gas pipe
6. Check the back wall insulation and replace if necessary.
7. Disconnect the condensate hose and siphon cap from the boiler.
Figure 81 - Remove the silencer
Figure 83 - Remove the Blower and Electrodes
Figure 84 - Remove the Combustion Assembly 1