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

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Chapter 6: Service and Maintenance
Figure 6-8 Temperature high limit switch
1 — Screw
2 — Mounting plate
8 — High limit switch
Replacing the Flame Probe
Before You Begin
CAUTION
Both the igniter and flame probe can still be hot if the heater was in operation. Allow
heater to cool completely before performing any maintenance.
• Disconnect all power sources to the heater.
• Turn off the gas supply.
To remove the flame probe:
1. Loosen the two screws (2) attaching the igniter/flame probe mounting bracket (1) to the burner duct.
2. Disconnect the igniter (3) and flame probe (4) from the control box.
3. Slide the igniter/flame probe mounting bracket (1) off of the screws to remove the probe assembly.
4. Remove the flame probe (4) from the igniter/flame probe mounting bracket (1) by removing the
screw (2).
To install the flame probe:
5. Install the flame probe (4) to the igniter/flame probe mounting bracket (1) using the screw (2).
6. Slide the igniter/flame probe mounting bracket (1) onto the screws on the burner duct.
7. Connect the igniter (3) and flame probe (4) to the control box.
8. Tighten the two screws (2) to install the igniter/flame probe mounting bracket (1) to the burner duct.
PNEG-2091 VariFlame™ Heater 47