Desa VP5B, VP11A installation manual Determining FRESH-AIR Flow for Heater Location

Page 6

FRESH AIR FOR COMBUSTION AND VENTILATION

Continued

6

DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION

Determining if You Have a Confined or Unconfined Space

Use this worksheet to determine if you have a confined or unconfined space.

Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms.

1. Determine the volume of the space (length x width x height).

Length x Width x Height = ___________________ cu. ft. (volume of space)

Example: Space size 18 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2304 cu. ft. (volume of space)

If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of the space.

2.Divide the space volume by 50 cubic feet to determine the maximum BTU/Hr the space can support.

____________ (volume of space) ÷ 50 cu. ft. = (Maximum BTU/Hr

the space can support)

Example: 2304 cu. ft. (volume of space) ÷ 50 cu. ft. = 46.1 or 46,100 (maximum BTU/Hr the space can support)

3. Add the BTU/Hr of all fuel burning appliances in the space.

Vent-free heater

 

___________________ BTU/Hr

Gas water heater*

 

___________________ BTU/Hr

Gas furnace

 

 

___________________ BTU/Hr

Vented gas heater

 

___________________ BTU/Hr

Gas fireplace logs

 

___________________ BTU/Hr

Other gas appliances*

+ ___________________ BTU/Hr

Total

= ___________________ BTU/Hr

Example: Gas water heater

 

40,000

BTU/Hr

Vent-free heater

+

10,000

BTU/Hr

Total

=

 

 

BTU/Hr

50,000

*Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.

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: 46,100

BTU/Hr (maximum the space can support)

50,000

BTU/Hr (actual amount of BTU/Hr used)

The space in the above example is a confined space because the actual BTU/Hr used is more than the maximum BTU/Hr the space can support. You must provide additional 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, page 7.

B.Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 8.

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 unconfined space. You will need no additional fresh air ventilation.

WARNING

WARNING ICON

G 001

You must provide additional ventilation air in a confined space.

100844

Image 6
Contents OWNER’S Operation and Installation Manual What to do if YOU Smell GASContents Safety Information Safety Information Product Identification Local Codes Unpacking Product FeaturesSafety Device Piezo Ignition SystemUnusually Tight Construction Fresh AIR for Combustion and VentilationProducing Adequate Ventilation Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location Determining if You Have a Confined or Unconfined SpaceVentilation AIR Ventilation Air From Inside BuildingVentilation AIR Ventilation Air From OutdoorsInstallation Items Check GAS TypeLocating Heater Installing Heater to Wall Marking Screw LocationsInstalling Two Mounting Screws Folding AnchorPlacing Heater On Mounting Screws Connecting to GAS Supply External Regulator With Vent Pointing DownPressure Testing GAS Supply Piping System Checking GAS ConnectionsPressure Testing Heater GAS Connections Manual Shutoff ValveFor Your Safety Read Before Lighting Operating HeaterPilot To Select Heating Level Shutting Off Heater Operating Heater Inspecting BurnerPilot Flame Pattern Shutting Off Burner Only pilot stays litODS/PILOT and Burner Orifice Inspecting Burner Cleaning and MaintenanceBurner Flame Pattern CabinetTrouble Shooting Observed Possible Problem Cause RemedyMaintenance, TROUBLE- ShootingLocate and correct all leaks see Checking Gas Connections, Trouble Shooting Technical Service Ing statement atTop Parts Under Warranty Parts Not Under WarrantyValve GA5010 Parts List Illustrated Parts BreakdownModel VP11A Warranty Information Keep this Warranty

VP5B, VP11A specifications

Desa VP5B and VP11A are innovative and advanced solutions designed to enhance various applications in the energy sector, offering unique features and technologies tailored to meet the modern demands of efficiency and sustainability.

Desa VP5B is a highly efficient power module that stands out for its compact design and integration capabilities. This system is engineered to provide reliable power supply solutions, making it ideal for both residential and commercial applications. One of its most notable features is its modular architecture, which allows for easy scaling as energy needs grow. The system's efficiency is further enhanced by its use of advanced semiconductor technologies, which minimize energy loss during conversion processes. Moreover, the VP5B supports smart grid technologies, enabling seamless interaction with renewable energy sources, which is increasingly crucial in today's energy landscape.

On the other hand, Desa VP11A is designed for robustness and high performance, catering to environments that demand greater power output. This unit boasts a maximum output capacity that makes it suitable for heavy-duty industrial applications. The VP11A employs cutting-edge thermal management systems, ensuring that it operates within optimal temperature ranges, thus prolonging its lifespan and reliability. This model is also equipped with real-time monitoring systems, allowing users to track performance metrics and make informed decisions to optimize energy usage.

Both models prioritize safety, incorporating multiple safety features such as overload protection, over-voltage, and short-circuit protection. They adhere to international safety standards, which is crucial for ensuring the longevity and performance of the systems in varied operational conditions.

From a technological perspective, Desa has invested in advanced communication protocols that allow for integration with IoT devices. This connectivity gives users the ability to remotely monitor and control their power systems, providing greater flexibility and efficiency. The systems can also be configured to operate in coordination with energy management systems, facilitating better load balancing and energy optimization.

In conclusion, Desa VP5B and VP11A represent the forefront of power module technology, combining efficiency, safety, and modern connectivity. Their unique features and robust characteristics position them as essential tools in advancing sustainable energy solutions across a wide range of applications. As we move toward a more energy-conscious future, these systems offer the performance and reliability needed to meet escalating energy demands.