Cumberland VariFlame VF-16-ONG, Owner'S Manual

Page: 19 / 64

3
System Overview
Topics Covered in this Chapter
▪ Heater component functions
▪ Burner control module and sequence of operation
Heater component functions
Figure 3-1 VariFlame Components
1 — Blower motor and wheel assembly
2 — High Limit Switch
3 — Air Proving Switch
4 — Igniter
5 — Flame Probe
6 — Control Board
7 — Throttle Valve
8 — Gas Valve
Blower motor and wheel assembly (1)
The blower motor and wheel assembly provides all of the airflow in the heater. It is important to ensure
that the blower wheel is spinning in the correct direction, and that the blades of the wheel stay clean. Any
reduction in airflow can cause a reduction in burner efficiency and overall heater performance.
PNEG-2091 VariFlame™ Heater 19