Replacing The Burner In The Ex 700 And Ex 850 Models - IBC EX Series Installation & Operating Manual

7.3.3 Replacing the burner in the EX 700 and EX 850 models

Warning
The IBC heat exchanger has a small amount of combustion chamber insulation
(refractory), which contains ceramic fibers.
When exposed to extremely high temperatures, the ceramic fibers that contain
crystalline silica can be converted into cristobalite, classified as a possible human
carcinogen.
Avoid disturbing or damaging the refractory. If damage occurs, contact the factory for
directions.
Avoid breathing and contact with skin and eyes and follow these precautions:
1. For conditions of frequent use or heavy exposure, respirator protection is
required. Refer to the "NIOSH Guide to the Selection and Use of Particulate
Respirators Certified under 42 CFR 84" for selection and use of respirators
certified by NIOSH.
For the most current information, NIOSH can be contacted at 1-800-356-4676 or
on the web at www.cdc.gov/niosh.
2. Wear long sleeved, loose fitting clothing, gloves and eyes protection.
3. Assure adequate ventilation.
4. Wash with soap and water after contact.
5. Wash potentially contaminated clothes separately from other laundry and rinse
washing machine thoroughly.
6. Discard used insulation in an air tight plastic bag.
NIOSH stated first aid:
Eye contact - Irrigate and wash immediately.
Breathing - Provide fresh air.
1. Turn off the electric power and gas supply to the boiler.
2. Ensure that the boiler cools down to the surrounding temperature. Do not drain the boiler
unless freezing conditions are expected during this procedure.
3. Remove the front cover, and then remove the boiler's top panel by removing the four Torx
head screws on the top panel of the boiler.
A ladder or step may be required to have a clear vertical view of the work area. Do not
attempt to reach from the front without a clear view, as damage to connectors, screws or
refractory may occur.
Section: Service and maintenance
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