Proper Gas Flow; High Altitude Derate; Flame Signal; To Measure Flame Signal - Lennox G24M SERIES Unit Information

NOTE- To obtain accurate reading, shut off all other
gas appliances connected to meter.
NOTE- To obtain accurate reading, shut off all other
gas appliances connected to meter.
NOTE-In Canada, certification for installation at alti
tudes over 4500 ft. (1372m) above sea level is the juris
diction of the local authorities.
NOTE-This is the only permissible field derate for this
appliance.
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