AIR FOR COMBUSTION

AND VENTILATION

Continued

Example:

 

40,000

 

Gas water heater*

 

Btu/Hr

Vent-free heater

+_

33,000

Btu/Hr

Total

=_

73,000

Btu/Hr

one within 12" of the floor on the wall connecting the two spaces (see options 1 and 2, Figure 2). You can also remove door into adjoining room (see option 3, Figure 2). Follow the National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation for required size of ventilation grills or ducts.

4.Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.

___________ Btu/Hr (maximum the space can support)

___________Btu/Hr (actual amount of Btu/Hr used)

Example: 51,200 Btu/Hr (maximum the space can support)

73,000 Btu/Hr (actual amount of Btu/Hr used)

The space in this example is a confined space because the actual Btu/Hr used is more than the maximum

Ventilation

 

Grills Into

 

Adjoining

Or

Room,

Remove

Option 1

Door into

 

 

Adjoining

 

Room,

 

Option

 

3

12"

Ventilation Grills

Into Adjoining Room,

Option 2

Btu/Hr the space can support. You must provide ad- ditional fresh air. Your options are as follows:

A.Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation Air From Inside Building.

B.Vent room directly to the outdoors. See Ventila- tion Air From Outdoors.

C.Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconfined.

If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an un- confined space. You will need no additional fresh air ventilation.

WARNING: If the area in which the heater may be oper- ated is smaller than that defined as an unconfined space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.3 or applicable local codes.

VENTILATION AIR

Ventilation Air From Inside Building

This fresh air would come from an adjoining un- confined space. When ventilating to an adjoining unconfined space, you must provide two perma- nent openings: one within 12" of the ceiling and

12"

Figure 2 - Ventilation Air from Inside

Building

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor. Connect these items directly to the outdoors or spaces open to the outdoors. These spaces include attics and crawl spaces. Follow the National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation for required size of ventilation grills or ducts.

IMPORTANT: Do not provide openings for inlet or outlet air into attic if attic has a thermostat- controlled power vent. Heated air entering the attic will activate the power vent.

 

Outlet

Ventilated

 

Attic

 

Air

 

 

Outlet

 

 

Air

 

To Attic

 

 

 

 

To

 

 

Crawl

Inlet

 

Space

 

 

Air

 

 

 

Inlet Air

Ventilated

 

Crawl Space

 

 

Figure 3 - Ventilation Air from Outdoors

108382-01G

www.desatech.com



Page 6 Page 8
Page 7
Image 7
Desa FVFM27PR installation manual Ventilation AIR, Ventilation Air From Inside Building, Ventilation Air From Outdoors
Page 6 Page 8

FVFM27PR specifications

Desa FVFM27PR is an innovative and highly adaptable fitness machine that has been designed to meet the diverse needs of users seeking an efficient and effective workout experience. This state-of-the-art equipment combines advanced technologies with practicality, making it a perfect addition to any home gym or fitness facility.

One of the standout features of the FVFM27PR is its versatile design, allowing users to perform a variety of exercises. It includes adjustable settings for resistance, accommodating users of all fitness levels, from beginners to experienced athletes. Its user-friendly interface ensures that anyone can easily navigate through different workout programs and adjust settings to fit their personal goals and preferences.

The FVFM27PR is equipped with cutting-edge fitness tracking technology. This feature helps users monitor their progress by tracking essential metrics such as heart rate, calories burned, and workout duration. With this data readily available, users can optimize their training regimens and make informed decisions about their fitness journeys.

Durability is another hallmark of the FVFM27PR. Constructed from high-quality materials, it promises longevity and stability during intense workout sessions. The machine is designed to withstand rigorous use, ensuring that it remains a reliable part of your fitness routine for years to come.

Additionally, the FVFM27PR offers a compact form factor, making it especially suitable for limited spaces. Its foldable design allows for easy storage when not in use, catering to those who desire a functional workout machine without sacrificing valuable living space.

The ergonomic design of the FVFM27PR enhances the user experience by providing optimal comfort and minimizing the risk of injury. It features adjustable seat and handle positions, allowing users to find their ideal fit for various exercises. This thoughtful design ensures that users can focus on their workouts without discomfort.

Moreover, the FVFM27PR integrates a variety of multimedia features, such as Bluetooth connectivity and compatibility with fitness apps. Users can easily connect their devices to access guided workouts, playlists, or motivation from personal trainers, further enriching the fitness experience.

In summary, the Desa FVFM27PR stands out with its versatility, advanced technology, durability, compact design, ergonomic features, and multimedia capabilities. These characteristics make it an excellent choice for anyone looking to enhance their fitness journey, whether at home or in a gym environment. With the FVFM27PR, achieving fitness goals has never been more accessible and engaging.
Top Page Image Contents