GASKET

FURNACE

MATERIAL

 

CASING

 

HOOD

DRAFT

FIGURE 6

INSTALLING THE DRAFT HOOD

The draft hood must be installed in the same atmospheric pressure zone as the combustion air inlet. The draft hood is packed in its own carton within the master pack. Make sure the draft hood received is the correct one for the floor furnace being installed. Included in the carton are two rope-like gaskets and 7 sheet metal screws. Begin by pressing the rope-like gasket material into the groove provided around the two male vent outlets on the floor furnace. See Figure 6.

Slip the two female couplings in the draft hood over the male outlets extending through the outer casing, making sure the gaskets remain in place. Press the draft hood tight against the casing and use the 7 sheet metal screws to secure it tightly. All 7 screws must be used to prevent

leakage of vent gases. Never install or operate a floor furnace without a draft hood. To do so could result in serious injury, property damage or death.

CONNECTING THE VENT

Refer to the specifications on Page 2 for the correct vent pipe size. Familiarize yourself with local codes or contact authorities to determine the approved material and method of installing the vent. NOTE: An existing vent that has worked for years may not be adequate for todays design because of higher efficiency requirements that result in lower stack temperatures.

Improper or unsafe venting presents a hazard that may result in property damage, bodily injury or loss of life. Listed below are some guidelines to observe when installing the vent system.

1.Never reduce the vent pipe to a size smaller than the outlet on the draft hood.

2.Never run pipe more than 15 feet horizontally.

3.The total horizontal run of a vent plus the horizontal vent connector shall be not greater than 75 percent of the vertical height of the vent.

4.Slope horizontal pipe upwards at least ¼ inch per lineal foot.

5.Do not use more than one elbow. An elbow restricts the flow of vent gases by approximately 10%.

6.Use a noncombustible thimble when connecting vent pipe to a masonry chimney.

7.Do not insert vent pipe farther than ¼ inch into the interior of the chimney.

8.Single wall pipe must not be used.

9.Never connect the vent pipe to any chimney or vent system serving a solid fuel-burning appliance.

10.If another appliance is being vented through the vent system with the floor furnace, the vent pipe must be increased to compensate for the additional load.

11.Never install any kind of damper in the vent system.

12.Do not use transite or any other type of ceramic pipe for venting.

Class “B” double wall pipe is acceptable to most codes, and if installed in accordance with the pipe manufacturers instructions provides the safest and most efficient vent system. Class “B” pipe has an integral lock for securing sections together. These locks must be properly fitted together. Fasten pipe to draft hood using at least three self-tapping sheet metal screws at equal intervals around the circumference of the pipe. Support horizontal pipe at three-foot intervals with metal strapping attached to joists.

The floor furnace you have selected was carefully designed to operate both safely and efficiently when vented with the proper size vent listed for each furnace on Page 2 of these instructions. We do not recommend doing so, but if you must vent into a

masonry chimney use the following instructions.

Continued – next page

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Louisville Tin and Stove 90N50A, 90N75A, 90N65A, 90N30A warranty Installing the Draft Hood, Connecting the Vent

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.