Desa GVC35NA, GVC50NA, GVC65NA installation manual Correct Burner Flame Pattern

Page 22

INSPECTING PILOT AND BURNER FLAME

Continued

22

Sharp Blue

Flame

Figure 16 - Correct Burner Flame Pattern

High

Yellow

Flame

Flame

Lifting

Off of

Burner

Figure 17 - Incorrect Burner Flame Patterns

If burner flame pattern is incorrect, as shown in Figure 17.

•turn heater off (see To Turn Off Gas to Appliance, page 20)

•see Troubleshooting, pages 24 through 27.

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Contents For Your Safety OWNER’S Operation and Installation ManualWhat to do if YOU Smell GAS Contents Safety Information Carbon monoxide poisoning may lead to deathSafety Information Product Identification Installation Items Local Codes Unpacking Product FeaturesCheck GAS Type Locating Heater Heater ClearancesVenting Heater Venting Heater Do not vent heater in any of the following ways see FigureVenting Heater Proper Size Vent Connecting to GAS Supply Connecting Heater to Utility Gas LineGas Connection Pressure Testing Gas Supply Piping System Checking GAS ConnectionsFresh AIR for Combustion and Ventilation Determining FRESH-AIR Flow for Heater Location Draft Hood Spillage TestVentilation Air from Outdoors Example 2 Locating Heater in Confined Closed Area Operating Heater For Your Safety Read Before LightingLighting Instructions Viewing Pilot To Turn OFF GAS to Appliance Manual Lighting ProcedureBlower Operation Shutting Off HeaterPilot Flame Pattern Inspecting Pilot and Burner FlameBurner Flame Pattern Correct Burner Flame Pattern Cleaning and Maintenance Trouble Shooting Observed Possible Problem Cause RemedyCleaning and Mainte TROUBLE- ShootingLighting Instructions Ing statement at TopService Procedures Removing Control Valve and Burner TubeRemoving Burner Diagram Blower WiringChanging Burner Orifice 35,000 BTU/Hr 50,000 BTU/Hr Technical ServiceService Hints Accessories ModelParts Under Warranty Ordering Replacement Parts CentralsParts Not Under Warranty Illustrated Parts List Cabinet AssemblyBurner Assembly Parts List Warranty Information Limited Warranty Vanguard Vented Natural GAS Heaters