Lennox EL196UH045XE36B - Page 61

Page 7
11 - Inspect the furnace return air duct connection to
ensure the duct is sealed to the furnace. Check for
air leaks on supply and return ducts and seal where
necessary.
12 - Check the condition of the furnace cabinet insulation
and repair if necessary.
13 - Perform a complete combustion analysis during the
furnace inspection to ensure proper combustion
and operation. Consult Service Literature for proper
combustion values.
14 - Verify operation of CO detectors and replace
batteries as required.
Perform a general system test. Turn on the furnace to
check operating functions such as the start-up and shut-
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1 - Check the operation of the ignition system, inspect
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and after. Check controls and safety devices (gas
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Service Manual for proper operating range. Thermal
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not disconnecting the indoor blower. For additional
details, please see Service and Application Note
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3 - Clock gas meter to ensure that the unit is operating
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operation. Check the supply pressure and the
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manifold pressure adjustment is necessary, consult
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on adjusting gas pressure. Not all gas valves are
adjustable. Verify correct temperature rise.
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The following repair parts are available through Lennox
dealers. When ordering parts, include the complete fur-
nace model number listed on the CSA International name-
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Upper access panel
Blower access panel
Top C a p
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Transformer
Integrated control
Door interlock switch
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Blower wheel
Motor
Motor mounting frame
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Flame Sensor
Heat exchanger assembly
Gas manifold
Combustion air inducer
Gas valve
Main burner cluster
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Pressure switch
Ignitor
Primary limit control
Flame rollout switches