Part number 550-143-010/1021
106
GV90+
series
2
gas-fired water boiler – boiler manual
Handling ceramic fiber and fiberglass materials
HANDLING CERAMIC FIBER
MATERIALS
This boiler contains ceramic fiber materials that
have been identified as carcinogenic, or possibly
carcinogenic, to humans. Ceramic fibers can be
converted to cristobalite in very high tempera-
ture 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 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 recom-
mendations can be found on the NIOSH web site at
http://www.cdc.gov/niosh/homepage.html. NIOSH
approved respirators, manufacturers, and phone
numbers are also listed on this web site.
• Wear long-sleeved, loose fitting clothing, gloves, and
eye protection.
Apply enough water to the combustion chamber lining
or base insulation to prevent airborne dust.
Remove combustion chamber lining or base insulation
from the boiler and place it in a plastic bag for disposal.
Wash potentially contaminated clothes separately from
other clothing. Rinse clothes washer thoroughly.
NIOSH stated First Aid
Eye: Irrigate immediately
Breathing: Fresh air
REMOVAL OR INSTALLATION
OF FIBERGLASS WOOL
This product contains fiberglass jacket insula-
tion and ceramic fiber materials in combus-
tion chamber lining or base panels in gas fired
products. Airborne fibers from these materials
have been listed by the State of California as a
possible cause of cancer through inhalation.
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
fiberglass wool at the time this document was written.
Other types of respirators may be needed depending
on the job site conditions. Current NIOSH recom-
mendations can be found on the NIOSH web site at
http://www.cdc.gov/niosh/homepage.html. NIOSH
approved respirators, manufacturers, and phone
numbers are also listed on this web site.
• Wear long-sleeved, loose fitting clothing, gloves, and
eye protection.
Operations such as sawing, blowing, tear out, and spray-
ing may generate airborne fiber concentration requiring
additional protection.
Wash potentially contaminated clothes separately from
other clothing. Rinse clothes washer thoroughly.
NIOSH stated First Aid
Eye: Irrigate immediately
Breathing: Fresh air
