FIREPLACE MANUFACTURERS INC.

UNVENTED NATURAL GAS LOG 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. These odors will disappear over time.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Heater produces a clicking/ticking noise just after burners are 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, cleaners, chemicals, new

 

 

carpet, etc. (See IMPORTANT state-

 

 

ment above)

 

2.

Low fuel supply

 

3.

Gas leak. See Warning statement

 

 

above

1.Open window to ventilate room. Stop us- ing odor causing products while heater is running

2.Refill supply tank

3.Locate and correct all leaks (see Check- ing Gas Connections, page 12)

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 17)

 

 

 

 

 

Gas odor even when control knob is in OFF

1.

Gas leak. See Warning statement

1.

Locate and correct all leaks (see Check-

position

 

above

 

ing Gas Connections, page 12)

 

2.

Gas control defective

2.

Replace gas control

 

 

 

 

 

Gas odor during combustion

1.

Foreign matter between control valve

 

 

and burner

 

2.

Gas leak. See Warning statement

 

 

above

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

2.Locate and correct all leaks (see Check- ing Gas Connections, page 12)

Log set cycles to pilot, but room tempera- ture drops to a lower than ideal level before log set comes back on (GHRCT Only)

1.Hand-held remote control unit needs to be moved away from heater

1.Move hand-held remote control unit far- ther away from the heater

www.desatech.com

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Desa VFN18R, VFN30R, VFN24R installation manual Gas leak. See Warning statement
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VFN24R, VFN18R, VFN30R specifications

Desa VFN18R, VFN24R, and VFN30R are a series of innovative heating solutions designed to meet varying heating needs while offering efficiency and reliability. Each model in the VFN range has unique features tailored to residential and commercial applications, contributing to versatile heating solutions.

One of the main characteristics of the VFN series is their impressive heating capacities. The VFN18R model is designed to deliver up to 18,000 BTU/hour, making it suitable for medium-sized spaces. The VFN24R, with its 24,000 BTU/hour output, is ideal for larger areas where more substantial heating is required. Finally, the VFN30R boasts an output of 30,000 BTU/hour, making it a powerful option for substantial heating demands, whether in warehouses, workshops, or expansive living spaces.

These models incorporate advanced technologies to maximize efficiency and performance. Each unit features a high-efficiency heat exchanger designed to produce a more significant amount of heat with lower fuel consumption. This not only translates into cost savings for the user but also reduces environmental impact by minimizing emissions.

In addition, the VFN series is built with a user-friendly interface, making operation straightforward. The units often include programmable thermostats, allowing users to set desired temperatures and schedules, optimizing energy consumption based on specific heating needs. Some models also come with remote control capabilities, offering added convenience.

Safety is a top priority for the VFN models. They come equipped with safety features such as an automatic shut-off system, which activates in case of overheating or malfunction. This contributes to peace of mind, especially in environments with high activity levels or sensitive materials.

The design of the VFN series also enhances their usability and adaptability. These units are compact and can be easily mounted on walls or placed in corners without taking up excessive space. Their aesthetic design allows them to blend seamlessly into different settings, from modern homes to traditional establishments.

In summary, the Desa VFN18R, VFN24R, and VFN30R are versatile heating solutions combining efficiency, safety, and ease of use. With varied heating capacities tailored for different needs and advanced technologies that enhance performance, these models stand out as reliable options for anyone seeking effective heating solutions. Whether for residential comfort or commercial utility, the VFN series delivers on multiple fronts.
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