Desa VN3000C, VN1800IT Checking GAS, Connections, Pressure Testing GAS Supply Piping System

Page 15

CONNECTING

IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping

 

TO GAS

and/or fittings.

 

 

 

 

 

SUPPLY

 

Pressure

 

Continued

 

 

 

Regulator

 

 

 

 

 

Regulator

 

 

Bracket

 

 

Heater

1/2" NPT

 

Pipe Nipple

 

Cabinet

Ground Joint

 

 

 

 

 

 

 

Tee Joint

Union

 

 

 

 

 

Test

 

Reducer

Manual

 

Gauge

 

Bushing to

Shutoff

 

Connection *

1/8" NPT

Valve *

 

 

 

 

 

1/8" NPT

From

 

 

 

Plug Tap

 

 

 

Gas Meter

 

 

 

 

 

 

 

Tee Joint

(7" W.C. to 10.5" W.C. Pressure)

 

 

 

 

 

Sediment

Pipe

3" Minimum

 

Trap

 

 

 

Nipple

 

 

 

Cap

 

 

 

 

 

Figure 13 - Gas Connection

*An A.G.A. design certified manual shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional A.G.A. design certified manual shutoff valve from your dealer. See Accessories, page 31.

CHECKING

WARNING

GAS

 

Test all gas piping and connections for leaks after installing or

CONNECTIONS

servicing. Correct all leaks at once.

 

 

 

 

WARNING

 

Never use an open flame to check for a leak. Apply a mixture of

 

liquid soap and water to all joints. Bubbles forming show a leak.

 

Correct all leaks at once.

 

 

PRESSURE TESTING GAS SUPPLY PIPING SYSTEM

Test Pressures In Excess Of 1/2 PSIG

1.Disconnect heater and its individual manual shutoff valve from gas supply piping system. Pressures in excess of 1/2 PSIG will damage heater regulator.

2.Cap off open end of gas pipe where manual shutoff valve was connected.

3.Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter.

Continued

15

 

100750

Image 15
Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualContents Safety Information Combustion and Ventilation, pages 5 through Thermostatic Heat Control Local Codes Unpacking Product FeaturesSafety Device Piezo Ignition SystemProducing Adequate Ventilation Fresh AIR ForCombustion VentilationFresh AIR for Combustion and Ventilation Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Ventilation AIRLocating Heater Installing To WallInstallation Items Check GAS TypeAttaching Thermostat Sensing Bulb Thermostat Sensing BulbModels VN1800IT and VN2550IT Only Locating Thermostat Sensing BulbMethods For Attaching Mounting Bracket To Wall Installing Heater to WallMounting Bracket Removing Front Panel Of HeaterAttaching Mounting Bracket To Wall Marking Screw LocationsPlacing Heater On Mounting Bracket Installing Bottom Mounting ScrewsConnecting to GAS Supply Servicing. Correct all leaks at once Pressure Testing GAS Supply Piping SystemChecking GAS ConnectionsChecking GAS Connections Pressure Testing Heater GAS ConnectionsOperating Heater Lighting Instructions Operating HeaterTo Select Heating Level HeaterShutting Off Burner Only pilot stays lit Shutting Off HeaterIf you do not follow these instructions exactly, a fire or OperatingModels VN1800C and VN3000C LOW MED High Pilot Flame Pattern Inspecting BurnerShows a correct burner flame pattern. shows an incorrect Burner Flame PatternAir Passageways Cleaning and Maintenance Trouble ShootingODS/PILOT and Burner Orifice CabinetObserved Possible Remedy Problem Cause See Cleaning Trouble ShootingIng statement at If you smell gasShut off gas supply Do not try to light any applianceVN1800C VN3000C Technical ServiceService Publications Hints VN1800IT VN2550ITAccessories Replacement PartsModel VN1800IT Illustrated Parts BreakdownParts List Model VN2550IT Model VN2550IT Model VN1800C Parts List Model VN3000C Parts List Keep this Warranty Warranty Information

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.