Burner Flame Pattern | Desa VN1800D, VN1800ITA, VN2550ITA, VN3000D

INSPECTING BURNER

Continued

BURNER FLAME PATTERN

Figure 24 shows a correct burner flame pattern. Figure 25 shows an incorrect burner flame pattern.

Correct Burner Pattern-Plaque GRH/OV 018

Figure 24 - Correct Burner Flame Pattern

Bad Burner Pattern-Plaque GRH/OV 019

Figure 25 - Incorrect Burner Flame Pattern

If burner flame pattern is incorrect, as shown in Figure 25

•turn heater off (see To Turn Off Gas to Appliance, page 20 [models VN1800ITA and VN2550ITA] or page 24 [models VN1800D and VN3000D])

•see Troubleshooting, pages 26 through 29

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25

Image 25

Desa VN1800D, VN1800ITA, VN2550ITA, VN3000D Burner Flame Pattern, If burner flame pattern is incorrect, as shown in Figure

Contents

What to do if YOU Smell GAS OWNER’S Operation and Installation Manual Contents Safety Information Combustion and Ventilation, pages 5 through Product Local Codes Unpacking Product FeaturesIdentification Combustion Fresh AIR ForVentilation Producing Adequate Ventilation Determining FRESH-AIR Flow for Heater Location Fresh AIR for Combustion and VentilationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIR Ventilation Air from Outdoors Ventilation Air From Outdoors Installation Items Installing To WallCheck GAS Type Locating Heater Models VN1800ITA and VN2550ITA Only Thermostat Sensing BulbLocating Thermostat Sensing Bulb Attaching Thermostat Sensing Bulb Mounting Bracket Installing Heater to WallRemoving Front Panel Of Heater Methods For Attaching Mounting Bracket To Wall Attaching Mounting Bracket To Wall Marking Screw Locations Placing Heater On Mounting Bracket Installing Bottom Mounting Screws Connecting to GAS Supply Checking GAS Pressure Testing GAS Supply Piping SystemConnections Servicing. Correct all leaks at once Checking GAS Connections Pressure Testing Heater GAS Connections Operating Heater Lighting Instructions Operating Heater To Select Heating Level Heater Shutting Off Burner Only pilot stays lit Shutting Off Heater Operating Explosion may result causing property damage, personalIf you do not follow these instructions exactly, a fire or Injury or loss of life Models VN1800D and VN3000D LOW MED High Pilot Flame Pattern Inspecting Burner If burner flame pattern is incorrect, as shown in Figure Burner Flame Pattern ODS/PILOT and Burner Orifice Cleaning and Maintenance Trouble ShootingCabinet Air Passageways TROUBLE- Shooting Observed Possible Remedy Problem Cause See Cleaning Trouble Shooting Shut off gas supply If you smell gasDo not try to light any appliance Ing statement at Service Publications Hints Technical ServiceVN1800D VN3000D Accessories Replacement Parts Model VN1800ITA Illustrated Parts Breakdown Parts List Model VN2550ITA Parts List Model VN1800D Control Position Label Hardware Assembly Model VN3000D Parts List Keep this Warranty Warranty Information