Desa CTB3924PT, VRL24NT, CSG3924NT Inspecting Burners, Pilot Flame Pattern, Burner Flame Patterns

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(Natural Gas)

22

INSPECTING BURNERS

Pilot Flame Pattern Burner Flame Patterns

INSPECTING BURNERS

Check pilot flame pattern and burner flame patterns often.

PILOT FLAME PATTERN

Figure 37 shows a correct pilot flame pattern. Figure 38 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the heater will shut down.

If pilot flame pattern is incorrect, as shown in Figure 38

turn heater off (see To Turn Off Gas to Appliance, page 18 [Ther- mostat-Controlled Models] or page 20 [Remote-Ready Models])

see Troubleshooting, pages 24 through 26

Note: The pilot flame on natural gas units will have a slight curve, but the flame should be blue and have no yellow or orange color.

Pilot Burner Thermocouple

Pilot Burner

 

Thermocouple

(Natural Gas)

(Propane/LP Gas)

Figure 37 - Correct Pilot Flame Pattern (Your pilot may vary from

pilots shown)

Thermocouple

Pilot Burner

Pilot Burner

 

Thermocouple (Propane/LP Gas)

Figure 38 - Incorrect Pilot Flame Pattern (Your pilot may vary from pilots shown)

BURNER FLAME PATTERNS

Figure39 showscorrectfrontand/ormiddleburnerflamepatterns.Figure 40 shows incorrect front and/or middle burner flame patterns. The incorrect burner flame patterns show yellow tipping at top of blue flame.

WARNING: If yellow tipping occurs, your heater could produce increased levels of carbon monoxide. If burner flame patterns show yellow tipping, follow in- structions below. Yellow flame on rear burner is normal.

NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine particles are burned by heater, causing brief patches of orange flame.

If front and/or middle burner flame patterns are incorrect, as shown in Figure 40

turn heater off (see To Turn Off Gas to Appliance, page 18 [Ther- mostat-Controlled Models] or page 20 [Remote-Ready Models])

see Troubleshooting, pages 24 through 26

Correct Front and Middle Burner Flame Patterns for VRL24NT/PT,

VRL24NR/PR, VRL30NT/PT and VRL30NR/PR Models

Correct Front and Middle Burner Flame Patterns for

CSG3924NT/PT and CSG3924NR/PR Models

Correct Middle Burner Flame Pattern for

CTB3924NT/PT and CTB3924NR/PR Models

Figure 39 - Correct Burner Flame Patterns

Yellow Tipping At

Top of Blue Flame

Incorrect Front and Middle Burner Flame Patterns for VRL24NT/PT,

VRL24NR/PR, VRL30NT/PT and VRL30NR/PR Models

Yellow Tipping At

Top of Blue Flame

Incorrect Front and Middle Burner Flame Patterns for

CSG3924NT/PT and CSG3924NR/PR Models

Yellow Tipping At

Top of Blue Flame

Incorrect Middle Burner Flame Pattern for

CTB3924NT/PT and CTB3924NR/PR Models

Figure 40 - Incorrect Burner Flame Patterns (VRL Models only)

For..com

110021-01A

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Contents OWNER’S Operation and Installation Manual What to do if YOU Smell GASTable of Contents Safety InformationSafety Information Local Codes Optional Remote Control AccessoriesProduct Identification UnpackingProduct Features AIR for Combustion and VentilationDetermining FRESH-AIR Flow for Heater Location Determining if You Have a Confined or Unconfined SpaceVentilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Installation and Clearances for VENT-FREE Operation InstallationCheck GAS Type Minimum Noncombustible Material Clearances See Between 8Floor Clearances Determining Minimum Mantel Clearance When Using a HoodMantel Clearances Determining Minimum Mantel ClearanceInstallation Items Needed Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Remote-Ready Models OnlyConnecting to GAS Supply Attaching Extension Plates to Base Assembly 30 Model OnlyExternal Regulator With Vent Pointing Down Pressure Testing Heater Gas Connections Pressure Testing gas Supply Piping systemChecking GAS Connections Installing Logs Installing Log #1 Ember Bed Model CSG3924NR ShownInstalling Log #2 Right and Log #3 Left Model VRL30NR Shown Adding Lava Rock Attaching Grate to Base AssemblyOperating Heater Lighting InstructionsShutting Off Heater To Turn OFF GAS to ApplianceShutting Off Burners Only pilot stays lit REMOTE-READY Models For Your Safety Read Before Lighting Manual Lighting ProcedureThermostat Control Operation Control Knob Rear Burner Ghrc Series Operation Optional Remote OperationThermostat Control Operation Ghrcta Series OperationPilot Flame Pattern Inspecting BurnersBurner Flame Patterns Cleaning Burner Injector Holders and Pilot AIR Inlet Holes Cleaning MaintenanceLogs Troubleshooting Observed Problem Possible Cause RemedyRefer to Air for Combustion and Venti Gas leak. See Warning statement Optional Positioning of Thermostat Sensing Bulb Important Do not crimp capillaryService Hints SpecificationsWiring Diagram Technical ServiceIllustrated Parts Breakdown For more Visit www ComTHERMOSTAT-CONTROLLED VRL24NT, VRL24PT VRL30NT, VRL30PT Parts List THERMOSTAT-CONTROLLEDREMOTE-READY VRL24NR, VRL24PR VRL30NR, VRL30PR CSG3924NR, CSG3924PR CTB3924NR, CTB3924PRREMOTE-READY Replacement Parts AccessoriesOwners Registration Form Postage Required 110021-01A Not a UPC

VRL30NT, VRL24PT, CSG3924NT, VRL30PT, VRL24NT specifications

Desa VRL24NR, VRL24PR, VRL30NR, VRL30PR, CSG3924NR, CSG3924PR, CTB3924NR, CTB3924PR, VRL24NT, VRL24PT, VRL30NT, VRL30PT, CSG3924NT, CSG3924PT, CTB3924NT, and CTB3924PT are a series of innovative heating solutions that cater to various residential and commercial needs. These models are designed to provide efficient, reliable, and aesthetically pleasing heating options.

One of the key features across these models is their advanced heating technology. They utilize cutting-edge infrared heating systems that ensure consistent and effective warmth. This technology not only heats up spaces quickly but also provides energy savings compared to traditional heating methods. Additionally, many models are equipped with programmable thermostats allowing users to set their desired temperature and schedule, enhancing convenience and energy efficiency.

Another hallmark of these models is their versatility in installation. The options for both vent-free and vented designs provide flexibility for various environments. Users can choose vented models for additional safety and air quality control, or opt for vent-free units that are easier to install in areas without existing ventilation systems. The range of configurations helps accommodate different space sizes and heating requirements.

In terms of design, the Desa heating solutions are crafted with aesthetics in mind. Many models feature sleek exteriors and elegant finishes, making them suitable for integration into modern or traditional interior designs. This commitment to design ensures that users do not have to sacrifice style for functionality.

Durability and reliability are emphasized throughout the line. Constructed with high-quality materials, these models are built to withstand the test of time and can function effectively under varying environmental conditions. Users can have peace of mind with warranties and support from the manufacturer.

Safety is another crucial aspect of these heating solutions. Each model is designed with safety features like automatic shut-off systems, making them safe for family use even in occupied living spaces.

In summary, the Desa VRL and CSG series offers a broad selection of heating solutions characterized by advanced infrared technology, versatile installation options, stylish designs, and robust safety measures. Whether for residential or commercial purposes, these models are engineered to meet diverse heating needs efficiently and reliably.