15,000 TO 28,000 BTU/HR VENT-FREE NATURAL GAS HEATER

INSTALLATION

Continued

CONNECTING TO GAS SUPPLY

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

Install sediment trap in supply line as shown in Figure 20, below. Locate sediment trap where it is within reach for cleaning. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps mois- ture and contaminants. This keeps them from going into heater controls. If sediment

trap is not installed or is installed wrong, heater may not run properly.

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

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" or greater diameter to allow proper gas volume to heater. If pipe is too small, undue loss of pressure will occur.

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 20).

Pressure

Regulator

3/8" NPT Pipe Nipple

 

 

 

 

 

Tee Joint

 

 

 

 

 

Test

 

 

Reducer

Gauge

 

 

Bushing to

Connection

*

 

 

 

1/8" NPT

 

 

 

 

 

1/8" NPT

 

 

 

 

 

Plug Tap

 

 

 

 

 

Sediment

 

 

 

Tee Joint

 

 

 

 

 

 

Pipe Nipple

Trap

 

 

 

 

 

 

 

 

 

 

Cap

Figure 20 - Gas Connection

Note: Burner bracket not shown for clarity

Ground

Heater

Union

Cabinet

Joint

 

Manual Shutoff Valve *

From Gas Meter (5" W.C. to 10.5" W.C. Pressure)

3" Minimum

Apply pipe joint sealant lightly to male threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater valves.

CAUTION : Use pipe joint seal- ant that is resistant to liquid pe- troleum (LP) gas.

*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 21.

12

104779

Page 11 Page 13
Page 12
Image 12
Desa Tech RFN28TD installation manual Connecting to GAS Supply, Gas Connection
Page 11 Page 13

RFN28TD specifications

Desa Tech RFN28TD is a notable advancement in the realm of remote communication technology, specifically designed to meet the increasing demands of modern industries. This radio frequency network device is tailored to enable seamless communication across various platforms, making it indispensable for organizations looking to enhance their operational efficiency.

One of the key features of the RFN28TD is its robust dual-band functionality, which operates across both the 2.4 GHz and 5 GHz frequency bands. This dual-band capability allows the device to adapt to varying environmental conditions, providing users with a stable and reliable connection even in congested areas. The RFN28TD is equipped with advanced adaptive transmission technology, ensuring optimal performance and quality of service by dynamically selecting the best frequency for transmission.

Another significant characteristic of the RFN28TD is its long-range communication capability. With an impressive range of up to several kilometers under optimal conditions, this device is ideal for applications requiring extensive coverage, such as industrial automation, smart cities, and agricultural monitoring. The built-in high-gain antennas further enhance its reach, allowing for improved signal penetration through obstacles.

The RFN28TD is also designed with security in mind. It incorporates advanced encryption protocols, ensuring that data transmitted over the network is secure and protected from unauthorized access. This is particularly crucial for businesses handling sensitive information, as data breaches can lead to severe consequences.

In terms of ease of use, the device offers a user-friendly interface that simplifies the setup and management processes. Its plug-and-play design allows for quick installation, making it accessible even for users with minimal technical expertise. Additionally, the RFN28TD supports a wide range of connectivity options, including Ethernet and Wi-Fi, further enhancing its versatility.

Energy efficiency is another highlight of the RFN28TD, as it operates on lower power consumption compared to traditional communication devices. This not only reduces operational costs but also contributes to a greener, more sustainable approach to technology.

In conclusion, the Desa Tech RFN28TD is a powerful and versatile communication device that combines advanced features, long-range capabilities, robust security, and energy efficiency. Its adaptability to various applications makes it an essential tool for businesses and industries aiming to leverage the benefits of modern communication technologies.
Top Page Image Contents