Desa RN30D, CGN20L installation manual Connecting to GAS Supply, Placing Heater On Mounting Bracket

Page 8

BLUE-FLAME CGN20, CGN20L AND RN30D

VENT-FREE NATURAL GAS HEATERS

INSTALLING TO WALL

Continued

Placing Heater On Mounting Bracket

1.Locate two horizontal slots on back panel of heater.

2.Place heater onto mounting bracket. Slide horizontal slots onto stand-out tabs on mounting bracket.

 

Horizontal

 

Slots

 

Mounting

 

Bracket

Stand-Out

(attached

to wall)

Tab

 

Figure 10 - Mounting Heater Onto Mounting Bracket

Installing Bottom Mounting Screws

7.Hold spacer in place with one hand. With other hand, insert mounting screw through bottom mounting hole and spacer. Place tip of screw in opening of wall anchor or drilled hole.

8.Tighten both screws until heater is firmly secured to wall. Do not over tighten.

Note: Do not replace front panel at this time. Replace front panel after making gas connections and checking for leaks (see pages 8-9).

CONNECTING TO GAS SUPPLY

NOTICE: A qualified service per- son must connect heater to gas supply. Follow all local codes.

WARNING: Never connect heater to private (non-utility) gas wells. This gas is commonly known as wellhead gas.

IMPORTANT: Check gas line pressure be- fore connecting heater to gas line. Gas line pressure must be no greater than 14 inches of water. If gas line pressure is higher, heater regulator damage could occur.

CAUTION: Use only new, black iron or steel pipe. Inter- nally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of 1/2" diameter or greater to allow proper gas volume to heater. If pipe is too small, undue loss of pressure will occur.

Typical Inlet Pipe Diameters

20,000 Btu/Hr models

3/8" or greater

30,000 Btu/Hr models

1/2" or greater

Installation must include a manual shutoff valve, union, and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater (see Figure 12).

1.Locate two bottom mounting holes. These holes are near bottom on back

Figure 11 - Installing Bottom Mounting Screws

panel of heater (see Figure 11).

2.

Mark screw locations on wall.

3.

Remove heater from mounting bracket.

4.

If installing bottom mounting screws

 

into hollow or solid wall, install wall

 

anchors. Follow steps 1 through 4 un-

 

der Attaching To Wall Anchor Method,

 

page 7.

 

If installing bottom mounting screw

 

into wall stud, drill holes at marked lo-

 

cations using 9/64" drill bit.

Test

Gauge

Connection *

Sediment

Trap

Note: Burner bracket not shown for clarity

Pressure

Regulator

3/8" NPT

 

Pipe Nipple

 

 

Heater

 

Cabinet

 

Ground Joint

Tee Joint

Union

 

Reducer

Manual Shutoff

Valve *

Bushing to

Typical Inlet

1/8" NPT

Pipe From

 

1/8" NPT

Gas Meter

(4" W.C. to 10.5"

Plug Tap

W.C.

 

Tee Joint

Pressure)

 

Pipe Nipple

3" Minimum

 

Cap

 

5.

Replace heater onto mounting bracket.

6.

Place spacers between bottom mount-

 

ing holes and wall anchor or drilled

 

hole.

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 15.

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103568

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Contents RN30D CGN20 CGN20L What to do if YOU Smell GASSafety Information Product FeaturesLocal Codes UnpackingProduct Identification AIR for Combustion VentilationProviding Adequate Ventilation Unusually Tight ConstructionAIR for Combustion and Ventilation Determining AIR Flow for Heater LocationVentilation AIR Ventilation Air From Inside BuildingVentilation Air From Outdoors Ventilation Air from Inside BuildingInstalling to Wall Installation ItemsCheck GAS Type Locating HeaterInstalling Heater to Wall Connecting to GAS Supply Installing Bottom Mounting ScrewsPlacing Heater On Mounting Bracket Typical Inlet Pipe DiametersPressure Testing Heater GAS Connections Pressure Testing GAS Supply Piping SystemChecking GAS Connections PsigFor Your Safety Read Before Lighting Manual Lighting ProcedureOperating Heater Lighting InstructionsCleaning and Maintenance Inspecting BurnerTroubleshooting Observed Problem Possible Cause RemedyTroubleshooting Ing Gas Connections, Technical Service Service HintsAccessories SpecificationsODS/Pilot Illustrated Parts BreakdownRN30D Parts List KEY Part Number Description QTYCGN20 CGN20L Parts List Parts not Under Warranty Replacement Parts CentralsParts Under Warranty 103568 103568 103568 Warranty Information Limited Warranty Comfort Glow VENT-FREE Heaters

CGN20L, CGN20, RN30D specifications

Desa RN30D, CGN20, and CGN20L are innovative models designed to meet the diverse needs of users looking for reliable and efficient solutions in various applications. These models are renowned for their advanced technologies and impressive features that set them apart in the market.

The Desa RN30D is a robust unit primarily known for its high efficiency and durable construction. It operates with a powerful engine that utilizes advanced fuel technology, making it not only environmentally friendly but also cost-effective. This model comes equipped with a state-of-the-art control system that ensures optimal performance and user-friendly operation. The RN30D is ideal for both commercial and residential uses, providing a versatile option for users needing dependable energy solutions.

On the other hand, the CGN20 and CGN20L models focus on providing energy in compact forms. These models feature a lightweight design, which enhances portability without compromising on performance. The CGN20 is tailored for medium-scale applications, while the CGN20L offers additional capacity and features for larger needs. Both models benefit from cutting-edge inverter technology that allows for stable and consistent output, essential for sensitive electronics.

A standout characteristic of the CGN20 and CGN20L is their quiet operation. Noise reduction technologies have been integrated, making them perfect for use in residential areas or noise-sensitive environments. Furthermore, they are designed with enhanced cooling systems, ensuring reliability even during extended usage.

Each of these models includes safety features such as overload protection and low oil shutdown, providing peace of mind to operators. They are also equipped with multiple outlets, allowing users to connect various devices simultaneously.

In summary, the Desa RN30D, CGN20, and CGN20L cater to a broad spectrum of users, from homeowners to businesses. Their combination of durability, efficiency, advanced technology, and safety features makes them an excellent investment for energy solutions. Whether you require substantial power or a compact, portable option, these models deliver unmatched performance tailored to meet your specific energy needs.
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