Top, Gas leak. See Warning statement at

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

TROUBLESHOOTING

Continued

WARNING: If you smell gas

•Shut off gas supply.

•Do not try to light any appliance.

•Do not touch any electrical switch; do not use any phone in your building.

•Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

•If you cannot reach your gas supplier, call the fire department.

IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. These fumes may mix with combustion air and create odors.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Heater produces a clicking/ticking noise just after burner is lit or shut off

1.Metal expanding while heating or con- tracting while cooling

1.This is common with most heaters. If noise is excessive, contact qualified ser- vice person

Heater produces unwanted odors	1.	Heater burning vapors from paint, hair
		spray, glues, etc. (see IMPORTANT
		statement above)
	2.	Gas leak. See Warning statement at
		top of page

1.Ventilate room. Stop using odor caus- ing products while heater is running

2.Locate and correct all leaks (see Check- ing Gas Connections, page 13)

Heater shuts off in use (ODS operates)	1.	Not enough fresh air is available	1.	Open window and/or door for ventilation
	2.	Low line pressure	2.	Contact local natural gas company
	3.	ODS/pilot is partially clogged	3.	Clean ODS/pilot (see Cleaning and
				Maintenance, page 15)

Gas odor even when control knob is in OFF	1.	Gas leak. See Warning statement at	1.	Locate and correct all leaks (see Check-
position		top of page		ing Gas Connections, page 13)
	2.	Control valve defective	2.	Replace control valve

Gas odor during combustion	1.	Foreign matter between control valve
		and burner
	2.	Gas leak. See Warning statement at
		top of page

1.Take apart gas tubing and remove for- eign matter

2.Locate and correct all leaks (see Check- ing Gas Connections, page 13)

Moisture/condensation noticed on windows	1. Not enough combustion/ventilation air. 1. Refer to Air for Combustion and Venti-
	lation requirements (page 5)

104779

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.

Desa Tech RFN28TD installation manual Top, Gas leak. See Warning statement at

Models: RFN28TD

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

TROUBLESHOOTING

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

top of page

Maintenance, page 15)

Gas leak. See Warning statement at

ing Gas Connections, page 13)

RFN28TD specifications