Lennox Enlight LGT300S4M


3-Burner Assembly (Figure 23)


       
       
        

Burners
  


         



TYPICAL GAS BURNER ASSEMBLY
FIGURE 23




  
󰀨
NOTE-Do not use thread sealing compound on the oric-
es. Using thread sealing compound may plug the orices.
Natural gas orice size is on nameplate. The LP gas ori-
ce size is on the label provided in the LP kit.
NOTE- In primary and secondary high temperature limits
S10 and S99 the ignition circuits in both gas heat sections
one and two are immediately de-energized when termi-
nals 1-3 open and the indoor blower motor is immediately
energized when terminals 1-2 close. This is the primary
and secondary safety shut-down function of the unit.
ORIFICE WITH
PIPE THREADS
Tighten to 6.25 + .5 ft.lbs.
Do not over-tighten.
FIGURE 24
4-Primary High Temperature Limits S10 & S99
-








        

-


    


S10 and S99 Location
CONDENSER
DIVIDER
PANEL
S10 AND S99 ON
HIND BLOWER
HOUSING
GAS HEAT
SECTION 1
GAS HEAT
SECTION 2
FIGURE 25
5-Flame Rollout Limits S47, S69

       

      





+
+ 12 F on a tempera-

6-Combustion Air Prove Switches S18, S45


         
   -
-
