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User'S Information Manual

Lennox G20 Series, User'S Information Manual

The Lennox G20 Series is a high-quality heating and cooling system designed to enhance home comfort. Ensure smooth operation and optimal performance by accessing the User's Information Manual, available for free download. Find this comprehensive manual on our website and make the most of your Lennox G20 Series experience.

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G20E / G20X PARTS IDENTIFICATION

HEAT

EXCHANGER

DRAFT

HOOD

UPPER ACCESS

PANEL

%851(56

BURNER

BOX

IGNITION

CONTROL

%/2:(5

GAS

MANIFOLD

BURNER BOX

DAMPER ASSEMBLY

5($5 %$))/(

TOP STRIP

LIMIT

CONTROL

&$%,1(7

&21752/ %2;

ROLL-OUT

SWITCH

BLOCKED VENT

SHUT-OFF

SWITCH

&$%,1(7 &$3

*$6 9$/9(

PILOT/ELECTRODE

ASSEMBLY

REMOVABLE

BURNER

BOX TOP

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Summary of Contents for G20 Series

Page 1: ...witch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Extinguish any open flames Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance If the information in this manual is not followed exac...

Page 2: ...DRAFT HOOD UPPER ACCESS PANEL 851 56 BURNER BOX IGNITION CONTROL 2 5 GAS MANIFOLD BURNER BOX DAMPER ASSEMBLY 5 5 TOP STRIP LIMIT CONTROL 1 7 21752 2 ROLL OUT SWITCH BLOCKED VENT SHUT OFF SWITCH 1 7 3 6 9 9 PILOT ELECTRODE ASSEMBLY REMOVABLE BURNER BOX TOP ...

Page 3: ...s seal between base and support 2 DO NOT obstruct air flow to unit Unit must receive an unobstructed flow of combustion and ventilating air 3 DO NOT store chlorine or fluorine products near unit or introduce these products into the combustion air These products can cause furnace corrosion 4 DO NOT draw return air from a room where this furnace or any other gas appliance ie a water heater is instal...

Page 4: ...his appliance is equipped with an ignition device which automatically lights the pilot Do not try to light the pilot by hand 5 Remove control access panel 6 Honeywell VR8204 Gas Valve Turn the knob on the gas valve clockwise to OFF See figure 3 Robertshaw 7200 Gas Valve Depress the lever and move to OFF position Do not force See figure 4 ON OFF FIGURE 3 21 95 6 5 6 6 9 9 GAS VALVE SHOWN IN OFF POS...

Page 5: ...ion is needed Pilot and Burner Flame CAUTION Check pilot flame and burner flame periodically to ensure proper operation 1 Pilot Flame Pilot flame must surround the end of flame sensor for proper operation of pilot safety cir cuit See figure 7 PILOT FLAME Side View BURNER PILOT GAS LINE ELECTRODE G20E G20X FIGURE 7 FLAME SENSOR 2 Burner Flame Start burner and allow to operate for a few minutes to e...

Page 6: ...iagnosed as the flu because symptoms are similar If you suffer from flu like symp toms that are exaggerated at home but seem to sub side while you are away from the house exposure to carbon monoxide could be the cause Your vigilance may pay off in early detection of a problem before either personal injury or property damage occurs Do not hesitate to contact a qualified service technician as an inv...

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