Lennox G24M-45, G24M-60, G24M-75, G24M-100, G24M-120 User's Information Manual

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02/99
Supersedes 9/98

G24M

SERIES

50HZ

GAS FURNACE

RETAIN THESE INSTRUCTIONS

FOR FUTURE REFERENCE

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.

Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity ofthis or any other appliance.

Installation and service must be per­formed by a qualified installer, ser­vice agency or the gas supplier.

Litho USA

:$51,1*

WHAT TO DO IF YOU SMELL GAS:

Do not try to light any appliance.
Extinguish any open flames.
Do not touch any electrical switch; 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.

Page 1

G24M PARTS IDENTIFICATION

7

9

1

2

3

4

5

6

8

9

UPFLOW POSITION

1 - COMBUSTION AIR

BLOWER
2 - PRESSURE SWITCH
3- GASVALVE
4 - ROLLOUT SWITCH

(One on each side)
5 - BURNERS
6 - CONTROL BOARD
7- BLOWER
8 - TRANSFORMER
9 - BLOWER DOOR

INTERLOCK SWITCH

7

DOWNFLOW POSITION

8

6

1
2

3

4

5

WARNING

Productcontai nsfiberglass wool.Distu rbingthe
insulation in this p roduct during installation,
maintenance, o r repair will expose you to fiber­glass wool. Breathi ng this may cause lung can­cer. (Fiberglass wool is known to the State of
California tocausecance r.)Fiberglasswoolmay
alsocau ser espirat ory, skin,and eyeirritation.To
reduceexposuretothis substanceor for further
informatio n, consul t material safety data sheets
available from ad dress sho wn be low, or contact
your supervisor.

Lennox Indust ries Inc.
P.O. Box 799900
Dallas, T X 75379-9900

WARNING

If overheating occurs or if gas supply fails to shut
off, shut off the manual gas valve to the appliance
before shutting off electrical supply.

WARNING

Do not use this furnace if any part has been under­water. Immediately call a qualified service techni­cian to inspect the furnace and to replace any part
of the control system and any gas control which
has been under water.

CAUTION

Before attempting to perform any service or mainte­nance, turn the electrical power to unit OFF at discon­nect switch.

IMPORTANT

Anyadditions, changes,or conversionsrequired in
orderforthe applianceto satisfactorilymeetthe ap­plication needs must be made by a Lennox service
technician using factory specified and approved
parts.

Page 2