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4. AIR BORN PARTICLES
Under certain conditions, heater may discolour due to ambient air borne particle deposits on the outside sur-
face. These deposits in no way affect the operation of the heater nor the manufacturer's warranties.
WARNING:
If heater back-fires during operation, then it must be turned off immediately.
Indication of back-firing:
A. Loud ignition noise, then followed by distinct
hissing sound.
B. Little or no visible burning on the ceramic
tile.
C. Combustion is taking place inside the burner
body.
5. SERVICING GUIDE
Servicing of heater is essential for continued efficient operation. Servicing should be carried out annu-
ally by qualified service personnel.
A. Clean the ceramic tile with low pressure compressed air. Avoid directing air stream at the gasketing
material between the tiles and heater body. The air pressure must be lower then 20 psi.
B. Clean the venturi tube with compressed air.
C. Clean the reflectors.
Cause & remedy of back-firing:
A. Improper gas pressure entering the venturi
tube = check pressure.
B. Breakage of a ceramic tile and or gasketing =
replace damaged part.
C. Faulty sealing of the ceramic tile to the burner
body, caused by breakdown of gasketing ma-
terial = contact your Schwank distributor.
Page 5
ecoSchwank-MILLIVOLT / IL-MILLIVOLT Manual
IM090128
RD: JAN 2009
RL: 1D
BA
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