Carrier 48FC M20 Series Service And Maintenance Instructions page 40

Manifold
Pressure
Tap
BURNERS
Gas Valve
Spark Igniter
Flame Sensor
Fig. 52 — Burner Tray Details
Gas Valve
Rollout
Switch
Inducer Fan
Motor
Gas Limit Switch
Down Shot
Gas Valve
Unit Center Post
Fig. 53 — Burner Partition Pane and Unit Center Post
Fig. 54 — Unit Control Box/IGC Location
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Burner Partition Panel
Integrated Gas
Controller (IGC)