Care and maintenance, Care of blower and motor, Belt tension – Bryant 394B User Manual
Page 5: Filters, Pilot, Heating-only thermostat connections
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CARE AND MAINTENANCE
WARNING: Fiecaiise personal injury or damage to
the furnaee may result, maintuname should be per-
Ibrmed by qualified persons only.
WARNING: Never use a maieh or otbor open Hanie
to eiiei’k for gas leaks. Use a sotip-aml-waier solution.
Care of Blower and Motor
For long life, economy, and high efficiency; clean ac
cumulated dirt and grease from blower wheel and
motor annually. Also clean around bearings and
shaft(s) of blower and motor. See label on blower for
oiling instructions.
Belt Tension
Adjust tension on a V-belt so that the helt deflects ap
proximately 3/4 to 1 inch when the pressure from one
finger is applied midway between the blower and
motor pulleys.
Filters
Each furnace is shipped with a washable permanent
filter. Check every 30 to 60 days. See label on blower
for cleaning method. It is not necessary to spray filter
with oil.
Cleaning Heat Exchanger
If it becomes necessary to clean heat exchanger—
because of carbon deposits, soot, etc.—shut off gas
and electricity. Remove burners and manifold assem
bly. Remove vent connector and draft diverter.
Remove flue baffles from upper heating element flue
outlets by removing two screws that secure Raffles in
place. Clean flueways with brush and/or vacuum.
Replace flue baffles and tighten screws carefully.
Replace draft diverter and vent connector. Replace
manifold and burners. Connect gas and electricity.
Test for gas leaks.
Figure 7—Removing Baffles
A73119
PILOT
Pilot should be checked and cleaned if necessary at
the beginning of each heating season. Pilot flame
should be high enough for proper impingement of the
safety element and to light the burners. Remove ac
cumulation of soot and carbon from thermocouple
safety element, if used.
It is recommended the pilot be turned off during the
summer season.
HEATING-ONLY THERMOSTAT CONNECTIONS
Figure 8—Field Wiring Connection
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