AAA Series Gas Boiler – Installation and Service Manual
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4.7
CHECK FOR DRAFT HOOD SPILLAGE
WARNING
Continuous spillage at the draft hood relief opening may result in severe personal injury, death
or substantial property damage.
After the main burners have operated for 5 minutes, check to see that combustion products are going up
the chimney or gas vent properly by passing a lighted match (or smoke from a cigar, cigarette, or pipe)
around the edge of the relief opening of the draft hood. If the chimney or gas vent is drawing properly, the
match flame or smoke will be drawn into the draft hood. If not, the combustion products will tend to
extinguish this flame. If the combustion products are escaping from the relief opening of the draft hood,
IMMEDIATELY shutdown the boiler and make proper adjustments or repairs.
4.8
CHECK OF CONTROLS
After the unit has been operated for awhile, lower the aquastat setting below the setpoint and burner
should shut off. Rotate the aquastat higher than setpoint and the main burner should ignite. Return the
aquastat to its original setpoint and make sure boiler cycles normally. Repeat this type of check on the
safety high-limit aquastat, thermostat and other system controls to ensure all work satisfactorily. If any of
the safety or controls do not function, necessary corrections should be made immediately.
4.9 CHECK FOR GAS LEAKS
To identify gas leaks, smell for gas around boiler area and gas piping connections (See
Section 1.1
). To
check a specific area for leakage, spray a mixture of soap and water onto the suspected area – active
bubbling indicates a gas leak. DO NOT TEST FOR LEAKS WITH AN OPEN FLAME. Gas leaks must be
repaired immediately.
Содержание AAA-3000 series
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