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

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5
Startup and Operation
Topics Covered in this Chapter
▪ Pre-startup inspections
▪ Emergency heater shutdown
▪ Normal heater shutdown
▪ Starting the heater
▪ Operating the burner
▪ Adjusting the heater output
Pre-startup inspections
• Look for any physical damage from shipping or installation that can cause the heater not to operate.
• Look for loose components, burner, gas valve, motor, terminal screws, and make sure that the
blower wheel rotates freely.
• Make sure that field wiring has been performed in accordance with Electrical Code ANSI/NFPA 70-
1993.
• Make sure that the supply gas line is properly connected and a sediment trap and shut off valve
have been provided to the heater’s gas inlet. Also make sure that the high-pressure regulator, if
applicable, has been vented to the outside of the building.
• Look at the gas hose for excessive abrasion, wear or cuts.
• Make sure that all external accessories have been installed and secured.
• Look at electrical supply voltage and make sure that it is compatible with the ratings listed on the
rating plate.
• Make sure that the heater is properly grounded and that the polarity is correct.
• Make sure all gas connections do not leak using a leak detector solution.
Emergency heater shutdown
1. Disconnect the main power supply.
2. Close the main gas supply.
Normal heater shutdown
Use the normal shutdown procedure if the heater is to be shutdown for cleaning or maintenance.
1. Close all the manual fuel supply valves.
2. With the heater lit, allow the heater to burn off the excess fuel in the gas supply line.
3. Move the toggle switch on the left side of the control to the OFF position.
PNEG-2091 VariFlame™ Heater 35