Desa (F)SVYD18NR AIR for Combustion and Ventilation, Providing Adequate Ventilation

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DESA INTERNATIONAL

VENT-FREE NATURAL GAS STOVE HEATER

AIR FOR COMBUSTION AND VENTILATION

WARNING: This heater shall not be installed in a confined space or unusually tight con- struction unless provisions are provided for adequate combus- tion and ventilation air. Read the following instructions to in- sure proper fresh air for this and other fuel-burning appli- ances in your home.

Today’s homes are built more energy effi- cient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in. During heating months, home owners want their homes as airtight as possible.

While it is good to make your home energy efficient, your home needs to breathe. Fresh air must enter your home. All fuel-burning appliances need fresh air for proper com- bustion and ventilation.

Exhaust fans, fireplaces, clothes dryers, and fuel burning appliances draw air from the house to operate. You must provide ad- equate fresh air for these appliances. This will insure proper venting of vented fuel- burning appliances.

PROVIDING ADEQUATE VENTILATION

The following are excerpts from Na- tional Fuel Gas Code, ANSI Z223.1/ NFPA 54, Section 5.3, Air for Combus- tion and Ventilation.

All spaces in homes fall into one of the three following ventilation classifications:

1.Unusually Tight Construction

2.Unconfined Space

3.Confined Space

The information on pages 4 through 6 will help you classify your space and provide adequate ventilation.

Unusually Tight Construction

The air that leaks around doors and win- dows may provide enough fresh air for combustion and ventilation. However, in buildings of unusually tight construction, you must provide additional fresh air.

Unusually tight construction is de- fined as construction where:

a.walls and ceilings exposed to the outside atmosphere have a con- tinuous water vapor retarder with a rating of one perm (6 x 10-11kg per pa-sec-m2) or less with open- ings gasketed or sealed and

b.weather stripping has been added on openable windows and doors and

c.caulking or sealants are applied to areas such as joints around window and door frames, be- tween sole plates and floors, be- tween wall-ceiling joints, be- tween wall panels, at penetra- tions for plumbing, electrical, and gas lines, and at other openings.

If your home meets all of the three criteria above, you must provide ad- ditional fresh air. See Ventilation Air From Outdoors, page 6.

If your home does not meet all of the three criteria above, proceed to De- termining Fresh-Air Flow For Heater Location, page 5.

Confined and Unconfined Space

The National Fuel Gas Code ANSI Z223.1/ NFPA 54 defines a confined space as a space whose volume is less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appli- ances installed in that space and an uncon- fined space as a space whose volume is not less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space. Rooms communicating directly with the space in which the appliances are in- stalled*, through openings not furnished with doors, are considered a part of the unconfined space.

*Adjoining rooms are communicating only if there are doorless passageways or ventila- tion grills between them.

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Contents VENT-FREE Natural GAS Stove Heater What to do if YOU Smell GASSafety Information Desa International VENT-FREE Natural GAS Stove HeaterProduct Identification Product FeaturesLocal Codes AIR for Combustion and Ventilation Providing Adequate VentilationUnusually Tight Construction Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Ventilation AIR Ventilation Air From InsideBuilding Ventilation Air From OutdoorsInstallation Check GAS TypeClearances to Combustibles Vent-Free Operation OnlyStove Cavity Assembly Use an adjustable wrench orAmity and Townsend Models Sheraton ModelsAttaching Stove Door Appearance May Vary Depending on Model Installing GAS LOG Heater Into Stove Fastening Heater Base to Stove Drop BottomConnecting to GAS Supply Installation Items NeededPressure Testing Gas Supply Piping System Pressure Testing Heater Gas ConnectionsChecking GAS Connections For Your Safety Read Before Lighting Operating HeaterLighting Instructions SVYD18NR and FSVYD18NR Remote-Ready ModelsTo Turn OFF GAS To Appliance Manual Lighting ProcedureOptional Remote Operation Variable Control Operation SVYD18N and FSVYD18N Manual-Variable Control ModelsInspecting Burners Pilot Flame PatternBurner Primary AIR Holes Main BurnerCleaning and Maintenance SpecificationsTechnical Service Cleaning Burner Injector Holder and Pilot AIR Inlet HoleTroubleshooting Observed Problem Possible CauseObserved Problem Possible Cause Remedy Top Illustrated Parts Breakdown SVYD18NR FSVYD18NRParts List KEY Part Number Description QTYSVYD18N FSVYD18N KEY Part Description QTY Amity SCIVF* Series PSCIVF* Series Indicates Color Suffix DesignationTouch-up Paint Bottle with Brush Porcelain Enamel Teal Green Sheraton NSCIVF* Series Parts List Townsend SeriesFC* and PFC* Series *Indicates Color Suffix Designation Replacement Parts Service HintsWiring Diagram Parts Under WarrantyAccessories Warranty Information

(F)SVYD18N, (F)SVYD18NR specifications

Desa (F)SVYD18NR and (F)SVYD18N are advanced models in the range of valves designed to serve various industrial and residential applications. Known for their reliability and efficiency, these valves are engineered to meet the demanding needs of modern fluid control systems.

One of the main features of the Desa (F)SVYD18NR and (F)SVYD18N is their robust construction. They are made from high-quality materials that ensure durability and longevity, even in harsh operating conditions. The valves are resistant to corrosion, making them suitable for handling aggressive fluids without compromising their integrity. This characteristic is essential for industries such as chemicals, oil and gas, and water treatment, where exposure to different substances is inevitable.

The valves are also equipped with advanced sealing technologies which prevent leaks and ensure optimal performance. The precision-engineered seals provide a barrier against contaminants while maintaining efficient fluid flow. This not only enhances the reliability of the system but also contributes to reduced maintenance costs and downtime.

Another significant advantage of the Desa (F)SVYD18NR and (F)SVYD18N is their versatility. They are designed to accommodate a wide range of fluid types, including gases, liquids, and slurries. This adaptability makes them ideal for various applications, from HVAC systems to industrial manufacturing processes.

In terms of operation, these valves utilize a user-friendly design that facilitates ease of installation and adjustment. They come with standardized connections that fit a variety of piping systems, simplifying the integration process. Additionally, the models have a responsive actuator mechanism that ensures precise control over fluid flow, enhancing operational efficiency.

Moreover, Desa (F)SVYD18NR and (F)SVYD18N are designed with energy efficiency in mind. Their advanced aerodynamic design minimizes pressure drops and energy consumption, making them an environmentally friendly choice. This aligns with the growing trend of sustainable practices in industrial operations.

Finally, both models are subject to rigorous testing to ensure they meet industry standards and regulations. This commitment to quality assurance guarantees that users can trust the performance and safety of these valves in their operations.

In conclusion, the Desa (F)SVYD18NR and (F)SVYD18N valves stand out for their durability, versatility, easy installation, and commitment to energy efficiency. These characteristics make them an excellent choice for anyone seeking reliable fluid control solutions in various applications.
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