ADJUSTING THE BURNER – Continued

If difficulty in adjusting the burner is experienced, it may be the result of incorrect gas supply pressure or manifold pressure. Pressure can only be checked and adjusted by a trained service technician using instruments designed for that purpose.

WARNING: Do not attempt to change pressure settings without proper training and instruments. To do so may cause your floor furnace to malfunction resulting in property damage, bodily injury, or death.

The following information is provided for use by a trained service technician with measuring instruments.

Minimum Inlet Pressure, Natural Gas…………………………………………………….

4.5 Inches Water Column

Minimum Inlet Pressure, Liquefied Petroleum (L.P.) Gas………………………………..

11.0 Inches Water Column

Maximum Inlet Pressure for Natural Gas…………………………………………………

7.0 Inches Water Column

Maximum Inlet Pressure, Liquefied Petroleum (L.P.) Gas……………………………….

14.0 Inches Water Column

(If the inlet pressure is found to exceed 14.0 inches water column, check the performance of the control valve thoroughly as damage may have occurred. If manifold pressure cannot be adjusted, replace the control valve).

Manifold Pressure, Natural Gas…………………………………………………………..

3.5 Inches Water Column

Manifold Pressure, Liquefied Petroleum (L.P.) Gas……………………………………..

10.0 Inches Water Column

OPTIONAL OPERATION

Your floor furnace has been designed to meet all safety requirements of the American National Standards Institute and government regulations by offering two modes of operation.

OPTION 1. Place the furnace key on the damper control rod (See Figure 21) and turn counterclockwise until the warning flag is concealed and the damper is open. Your floor furnace will now cycle on and off maintaining a moderate grill temperature and an even room temperature. Your floor furnace will function best on this setting during mild weather.

OPTION 1

 

In mild weather,

 

operate furnace

 

with damper open.

 

Furnace will cycle

 

on and off main-

 

taining a moderate

Damper

grill temperature

Open

and an even room

 

temperature.

 

FIGURE 21

WARNING

FLOOR FURNACE GRILLS BECOME HOT WHEN FURNACE IS IN OPERATION. CONTACT OF BARE SKIN WITH GRILL MAY RESULT IN SEVERE BURNS. KEEP CHILDREN OFF, PROVIDE FENCE OR REGISTER GUARD FOR THEIR PROTECTION.

OPTION 2. Turn the furnace key clockwise until the warning flag reading “WARNING – GRILL IS HOT – Keep off – can cause burns” is visible and the damper is closed. The limit control will now cease to function and the floor furnace will now put out the maximum amount of heat until the room temperature reaches the thermostat setting. Use this option only in extremely cold weather. If furnace continues to cycle on limits, assure that damper door is 100% closed by adjusting damper door pin if necessary.

OPTION 2

In extremely cold weather, close damper (which exposes warning plate). Furnace will then put out maximum

amount of heat untilDamper Closed

room temperature reaches setting on wall thermostat.

FIGURE 22

LIMIT SWITCH

TEMPERATURE SETTINGS

 

90{N,P}30A……………………..

140N

90{N,P}50A……………………..

160N

90{N,P}65A……………………..

180N

90{N,P}75A……………………..

170N

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Louisville Tin and Stove 90N65A, 90N75A, 90N50A, 90N30A warranty Optional Operation, Limit Switch

90N50A, 90N30A, 90N65A, 90N75A specifications

Louisville Tin and Stove has established a reputation for quality and innovation in the heating and cooling industry with its line of products, particularly the 90N65A, 90N50A, 90N75A, and 90N30A models. Each of these units boasts distinctive features, technologies, and characteristics that cater to a variety of residential and commercial needs.

The 90N65A model stands out for its impressive energy efficiency, designed to operate at an efficiency rating of up to 95%. This model employs advanced condensing technology, which allows it to extract more heat from the combustion process, significantly reducing energy costs for users. Moreover, its variable speed blower promotes quiet operation while optimizing airflow, ensuring that spaces are comfortably heated or cooled without excessive noise.

In contrast, the 90N50A model is engineered for versatility and compactness. This makes it an ideal choice for smaller homes or tight spaces where every inch counts. Despite its size, the 90N50A does not compromise on performance, delivering robust heating capabilities with an efficiency rating also reaching up to 94%. Its straightforward installation process, along with its user-friendly interface, allows for quick setup and ease of operation, appealing to both homeowners and technicians.

The 90N75A model is tailored for larger environments, with a higher BTU output designed to keep extensive areas warm even during the coldest months. It features dual heat exchangers that enhance durability and thermal efficiency, ensuring a longer lifespan. Furthermore, the integrated smart technology allows homeowners to monitor and adjust settings remotely, providing ultimate convenience and control over indoor climates.

Finally, the 90N30A serves as a budget-friendly option without sacrificing quality or efficiency. It incorporates a simplified design that ensures reliability while still achieving a commendable efficiency rating. Ideal for those seeking an economical heating solution, the 90N30A supports both natural gas and propane fuel options, making it adaptable to various energy sources.

All models highlight Louisville Tin and Stove's commitment to sustainability and reducing environmental impact. By incorporating innovative technologies such as modulating burners and advanced heat exchangers, these units not only comply with modern regulatory standards but also contribute to a greener planet. In summary, the Louisville Tin and Stove series—90N65A, 90N50A, 90N75A, and 90N30A—offers a robust selection of heating solutions that cater to diverse needs, emphasizing efficiency, performance, and adaptability.