Lennox International Inc. G24M SERIES manual

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Table of contents for the manual

  • Page 1

    WHA T T O DO IF YOU SMELL GAS: If the information in this manual is not followed exactly , a fire or explosion may result causing property damage, personal injury or loss of life. : $51,1* Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. Installation and service must be per- formed b[...]

  • Page 2

    7 6 G24M P ARTS IDENTIFICA TION UPFLOW POSITION DOWNFLOW POSITION 1 2 3 4 5 6 7 2 3 4 5 1 - COMBUSTI ON AI R BLOWER 2 - PRESSU RE SWITCH 3- G A SV A L V E 4 - ROLLOUT SWITCH (One on each si de) 5 - BURNERS 6 - CONTROL BOARD 7- B L O W E R 8 - TRANSFORM ER 9 - BLOWER DOOR INTERLOCK SWITCH 8 9 8 9 W ARNING Product contains fiberglass wool.D isturbing[...]

  • Page 3

    Important Directions 1 - Keep the furnac e area c lear and free of combus tible material, gasoline, and ot her flammable v apors and liq - uids. If ins talled in an insulated area, furnace must be kept fr ee of insulating mater ial. Insulating material may be combustible. Inspect furnace vent ing system to make s ure it is in place, phy sic ally so[...]

  • Page 4

    Placing Furnace Into Operation G24M units are equipped with an electronic ignition sys tem. Do not attempt to manually light bur ners on these f urnaces. Each time the ther mostat calls for heat, the burner will auto - matically light. Use only you r hand to turn the gas control knob. Never use tools. If the kno b will no t tur n by hand, do not tr[...]

  • Page 5

    UPFLOW FURNACE BOTTOM RETURN AIR FIGURE 4 UPFLOW FURNACE SIDE RETURN AIR FIGURE 5 DOWNFLOW FURNACE FIL TERS IN PLENUM RACK FIGURE 6 Blower Check and c lean blower wheel for any debr is. Blower mo- tor is prelubricated for extended bearing life. No further lu- brication is needed. W ARNING Blower door must be securely in place when blower and burner[...]

  • Page 6

    V enting System Inspection Annually (before heating season) ins pect fur nace venting system, vent cap, heat exchanger and burners for corro- sion, deter ioration, or deposits of debris. Remov e any ob- structi ons. Contact your Lennox dealer for a per iodic unit inspection by a qualified serv ice technician. Flame Rollout Safety Switches Y our Len[...]