Desa RN30B, CGN18B Checking GAS Connections, Pressure Testing GAS Supply Piping System

Page 15

CONNECTING TO GAS SUPPLY

Continued

IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings.

 

Note: Burner bracket

Pressure

not shown for clarity

Regulator

 

1/2" NPT Pipe Nipple

Test

Gauge

Connection *

Sediment

Trap

Tee Joint

Reducer Bushing to 1/8" NPT

1/8" NPT Plug Tap

Tee Joint

Pipe

Nipple

Cap

Ground Joint

Heater

Union

Cabinet

 

Manual

Shutoff

Valve *

From

Gas Meter

(4" W.C. to 10.5" W.C.

Pressure)

3" Minimum

CHECKING GAS CONNECTIONS

Figure 12 - 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 27.

WARNING

Test all gas piping and connections for leaks after installing or 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

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Contents What to do if YOU Smell GAS OWNER’S Operation and Installation ManualContents Safety Information Safety Information Piezo Ignition System Local Codes Unpacking Product FeaturesSafety Device Product IdentificationUnconfined Space Fresh AIR for Combustion and VentilationProducing Adequate Ventilation Unusually Tight ConstructionDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Ventilation AIRInstallation Items Check GAS TypeLocating Heater 16 3/ 4 RN30B CeilingFloor RightMethods 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 Checking GAS Connections Pressure Testing GAS Supply Piping SystemManual Shutoff Valve Pressure Testing Heater GAS ConnectionsOperating Heater For Your Safety Read Before LightingGRH/OV 007G Shutting Off Burner Only pilot stays lit Operating Heater Inspecting BurnerPilot Flame Pattern Shutting Off HeaterBurner Flame Pattern Correct Flame Pattern AT High PositionIncorrect Flame Pattern AT High Position Cabinet Cleaning and Maintenance Trouble ShootingObserved Possible Problem Cause Remedy ODS/PILOT and BurnerTROUBLE- Shooting Maintenance,From Top Ing statement atTechnical Service Service HintsRN30B CGN18B Replacement Parts Centrals Parts Under WarrantyParts Not Under Warranty Accessories Manual ShutoffFloor Mounting Stand GA4000B ODS/Pilot KEY Part Number Description QTY RN30B Parts List12-2 12-1 CGN18B Parts List Limited Warranty VENT-FREE Heaters Warranty Information

RN30B, CGN18B specifications

Desa CGN18B and RN30B are innovative indoor heating solutions that cater to both residential and commercial needs, offering efficient heating capabilities with advanced features. Both models have carved a niche for themselves in the market, owing to their reliable performance, user-friendly interfaces, and modern design.

The Desa CGN18B is a gas-fired vent-free heater that has garnered attention due to its sleek design and compact size, making it an excellent choice for smaller spaces. With a heating capacity of 18,000 BTUs, it can effectively warm up areas up to 700 square feet, which is ideal for bedrooms, living rooms, or even office settings. One of the standout features of the CGN18B is its thermostat, which allows users to maintain their desired room temperature, enhancing comfort while optimizing energy consumption. The model operates without the need for external venting, which simplifies installation and reduces overall costs. Additionally, the CGN18B boasts safety features such as an oxygen depletion sensor, which automatically shuts the heater off if oxygen levels fall below a safe threshold, ensuring peace of mind for users.

On the other hand, the Desa RN30B is a dual-fuel heater that offers versatility by accommodating both liquid propane and natural gas. This flexibility makes it a preferred option for homeowners who may want to switch fuel sources based on availability or preference. With a robust heating capacity of 30,000 BTUs, the RN30B can comfortably heat larger spaces, up to 1,000 square feet. This model is particularly designed for heavy-duty use, making it suitable for workshops or larger living areas. The RN30B comes equipped with an electronic ignition system that simplifies startup, eliminating the need for matches or lighters. Moreover, its sleek design allows it to blend seamlessly with various interior styles, while the easy-to-use control panel enhances user experience.

Both models showcase advanced heating technologies, such as radiant heat distribution, which ensures warmth is spread evenly throughout the room. Furthermore, the efficient combustion technology employed in both units maximizes fuel utilization, thereby minimizing environmental impact while lowering energy expenses.

In conclusion, Desa CGN18B and RN30B are exemplary choices in the realm of indoor heaters. Their unique features, enhanced safety measures, and efficiency render them highly suitable options for those seeking dependable and effective heating solutions. Whether for a cozy home environment or a larger workspace, these models are designed to meet diverse heating needs effectively.