Desa VN1800IT, VN1800C, VN2550IT, VN3000C installation manual Inspecting Burner, Pilot Flame Pattern

Page 24

OPERATING HEATER

Models VN1800C and VN3000C

Continued

INSPECTING BURNER

24

 

 

 

TO TURN OFF GAS TO APPLIANCE

 

 

 

 

 

 

 

 

Shutting Off Heater

1.

Turn control knob clockwise Clockwise to the OFF position.

2.

Turn off all electric power to the appliance if service is to be performed.

Shutting Off Burner Only (pilot stays lit)

1.

Turn control knob clockwise Clockwise to the PILOT position.

 

 

 

 

 

MANUAL LIGHTING PROCEDURE

1.Follow steps 1 through 5 under Lighting Instructions, pages 21 and 22.

2.With control knob pressed in, strike match. Hold match to pilot until pilot lights.

3.Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob.

Check pilot flame pattern and burner flame pattern often.

PILOT FLAME PATTERN

Figure 22 shows a correct pilot flame pattern. Figure 23 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.

Pilot Burner

Thermocouple

GOOD PILOT

GRH/OV 009

Figure 22 - Correct Pilot Flame Pattern

Thermocouple

Pilot Burner

 

BAD PILOT

GRH/OV 010

Figure 23 - Incorrect Pilot Flame Pattern

If pilot flame pattern is incorrect, as shown in Figure 23

•turn heater off (seeTo Turn Off Gas to Appliance, page 20 [models VN1800IT and VN2550IT] or page 24 [models VN1800C and VN3000C])

•see Troubleshooting, pages 24 through 29

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Contents OWNER’S Operation and Installation Manual What to do if YOU Smell GASContents Safety Information Combustion and Ventilation, pages 5 through Local Codes Unpacking Product Features Safety DevicePiezo Ignition System Thermostatic Heat ControlFresh AIR For CombustionVentilation Producing Adequate VentilationFresh AIR for Combustion and Ventilation Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space Ventilation AIR Ventilation Air From Inside BuildingVentilation AIR Ventilation Air From OutdoorsInstalling To Wall Installation ItemsCheck GAS Type Locating HeaterThermostat Sensing Bulb Models VN1800IT and VN2550IT OnlyLocating Thermostat Sensing Bulb Attaching Thermostat Sensing BulbInstalling Heater to Wall Mounting BracketRemoving Front Panel Of Heater Methods For Attaching Mounting Bracket To WallMarking Screw Locations Attaching Mounting Bracket To WallInstalling Bottom Mounting Screws Placing Heater On Mounting BracketConnecting to GAS Supply Pressure Testing GAS Supply Piping System Checking GASConnections Servicing. Correct all leaks at oncePressure Testing Heater GAS Connections Checking GAS ConnectionsOperating Heater Operating Heater Lighting InstructionsHeater To Select Heating LevelShutting Off Heater Shutting Off Burner Only pilot stays litOperating If you do not follow these instructions exactly, a fire orModels VN1800C and VN3000C LOW MED High Inspecting Burner Pilot Flame PatternBurner Flame Pattern Shows a correct burner flame pattern. shows an incorrectCleaning and Maintenance Trouble Shooting ODS/PILOT and Burner OrificeCabinet Air PassagewaysObserved Possible Remedy Problem Cause Trouble Shooting See CleaningIf you smell gas Shut off gas supplyDo not try to light any appliance Ing statement atTechnical Service Service Publications HintsVN1800IT VN2550IT VN1800C VN3000CReplacement Parts AccessoriesIllustrated Parts Breakdown Model VN1800ITParts List Model VN2550IT Model VN2550IT Model VN1800C Parts List Model VN3000C Parts List Warranty Information Keep this Warranty

VN1800C, VN3000C, VN1800IT, VN2550IT specifications

Desa's VN series includes a range of advanced acoustic instruments designed for professional musicians and enthusiasts alike. The VN1800C, VN1800IT, VN3000C, and VN2550IT models each boast unique features and characteristics that cater to various playing styles and performance needs.

The VN1800C is a classical guitar that emphasizes warmth and resonance. This model is crafted from high-quality materials, including a solid cedar top that delivers rich sound and a delightful playability experience. The back and sides are constructed from mahogany, contributing to its tonal richness and sturdy build. The VN1800C also features a traditional Spanish neck profile, which facilitates comfortable finger placement, especially for intricate fingerstyle playing.

Moving on to the VN1800IT, this instrument is tailored for those who appreciate innovative design in combination with traditional craftsmanship. It features an integrated pickup system that allows for amplification without compromising the authentic acoustic sound. The VN1800IT is designed with an elegant cutaway, providing easier access to higher frets, making it an excellent choice for advanced players looking for versatility in their performance.

The VN3000C is a larger-bodied guitar that provides an expansive sound with impressive projection. This model is famous for its powerful bass response, making it ideal for solo performances and ensemble playing. Its solid spruce top enhances volume while the rosewood back and sides give it a bright, crisp tone. The VN3000C is also equipped with advanced bracing patterns that improve resonance and sustain, ensuring that every note rings out clearly.

Finally, the VN2550IT combines the features of an acoustic guitar with modern innovation. This model offers an adjustable truss rod for optimal neck stability, which is vital for maintaining playability under different environmental conditions. Like the VN1800IT, the VN2550IT also includes a high-quality pickup system, making it perfect for live performances. Its stylish design and quality craftsmanship ensure that it stands out visually as well as acoustically.

Overall, the Desa VN series offers a variety of choices to suit different musical tastes and performance requirements. Each model blends traditional acoustic qualities with modern technologies, making them must-have instruments for players at all levels.
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