Desa CRN30 installation manual AIR for Combustion Ventilation, Providing Adequate Ventilation

Page 5

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 insure proper fresh air for this and other fuel-burning appliances in your home.

Todayʼs homes are built more energy efficient 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 effi- cient, your home needs to breathe. Fresh air must enter your home. All fuel-burning appliances need fresh air for proper combustion and ventilation.

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

PROVIDING ADEQUATE

VENTILATION

The following are excerpts from National Fuel

Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation.

All spaces in homes fall into one of the three fol- lowing ventilation classifications:

1.Unusually Tight Construction

2.Unconfined Space

3.Confined Space

The information on pages 5 through 7 will help you classify your space and provide adequate ventilation.

Unusually Tight Construction

The air that leaks around doors and windows 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 defined as construction where:

a.walls and ceilings exposed to the out- side atmosphere have a continuous water vapor retarder with a rating of one perm (6 x 10-11kg per pa-sec-m2) or less with openings 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, between sole plates and floors, between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical and gas lines and at other openings.

If your home meets all of these three cri- teria, you must provide additional fresh air. See Ventilation Air From Outdoors, page 7.

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

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 appliances installed in that space and an unconfined 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 com- municating directly with the space in which the appliances are installed*, 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 ventilation grills between them.

DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION

Determining if You Have a Confined or Unconfined Space

Use this work sheet 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 pas- sageways or ventilation grills between the rooms.

107883-01H

www.desatech.com

5

Page 4 Page 6
Image 5
Page 4 Page 6
Contents Model CRN30 Shown CRP26, CRP26T, CRT26PT, CRN30, CRN30T, CRT30NTTable of Contents Safety Information Unpacking Product FeaturesLocal Codes Determining FRESH-AIR Flow for Heater Location AIR for Combustion VentilationProviding Adequate Ventilation Ventilation Air From Inside Building Ventilation AIRInstallation Items InstallationCheck GAS Type Locating HeaterThermostat Sensing Bulb Installing Heater to WallThermostat Models Only Mounting BracketMarking Screw Locations Methods For Attaching Mounting Bracket To WallPlaque Heater Attaching To Wall Anchor MethodPlacing Heater On Mounting Bracket Installing Bottom Mounting ScrewsMounting Base Feet to Floor Where required by local code Connecting to GAS SupplyMounting Heater to Floor Mounting Base Feet to HeaterJoint Nipple Sediment Trap From External Regulator Checking GAS ConnectionsTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Test Pressures In Excess Of 1/2 Psig 3.5 kPaLighting Instructions NON-THERMOSTAT Models For Your Safety Read Before LightingOperating Heater Thermostat Models For Your Safety Read Before Lighting Manual Lighting ProcedureTo Select Heating Level To Turn OFF GAS To ApplianceControl Knob CRP16T CRP26T Ignitor Button Control KnobThermostat Operation Inspecting HeaterPilot Flame Pattern Burner Flame PatternTechnical Service Cleaning MaintenanceService Hints Observed Problem Possible Cause Remedy TroubleshootingODS/pilot lights but flame Gas leak. See Warning CRN18, CRN18T CRN30, CRN30T CRT30NT SpecificationsService Publications AccessoriesReplacement Parts Cabinet Body Models Illustrated Parts BreakdownParts List Cabinet Body Models CRT26PT and CRT30NT KEY Part Number CRT26PT CRT30NT Description QTY Burner Assembly Models CRP16, CRN18, CRP26 and CRN30 110803-02 Illustrated Parts Breakdown Parts Central Limited Warranty VENT-FREE Infrared GAS Heaters Warranty InformationKeep this Warranty

CRN30 specifications

Desa CRN30 is an innovative and versatile product designed to meet the growing demands of modern users seeking efficiency and reliability in their daily tasks. This advanced device, characterized by its cutting-edge features and robust technology, stands out in the market for both personal and professional use.

One of the main features of the Desa CRN30 is its powerful processing unit, which is engineered to handle multitasking with ease. Equipped with a high-performance chipset, it ensures smooth operation across various applications, making it ideal for users who demand speed and efficiency. The device also boasts ample memory and storage options, allowing users to seamlessly manage large files and run multiple applications simultaneously without any lag.

In terms of connectivity, the Desa CRN30 offers a range of options, including Bluetooth, Wi-Fi, and USB connections, ensuring that users can easily connect to a variety of devices and networks. This seamless connectivity allows for effortless data transfer and communication, enhancing productivity for both personal and professional tasks.

The durability of the Desa CRN30 is another significant characteristic. Constructed with high-quality materials, the device is designed to withstand rigorous use while maintaining a sleek and sophisticated appearance. Its lightweight design adds to its portability, making it easy for users to carry it wherever they go, whether to meetings, on commutes, or while traveling.

User experience is enhanced through an intuitive interface that provides easy navigation. The device features a vibrant display that ensures clear visibility in various lighting conditions, further elevating the user experience. Additionally, the Desa CRN30 is compatible with a range of applications, providing users with the flexibility to customize their device according to their specific needs.

Security is also a prime consideration in the design of the Desa CRN30. With advanced security features such as biometric authentication and encrypted storage, users can rest assured that their data and personal information are well-protected from unauthorized access.

In conclusion, the Desa CRN30 stands out as a powerful, reliable, and secure device that caters to the needs of modern users. Its exceptional features, advanced technology, and user-friendly design make it an ideal choice for anyone looking to enhance their productivity and experience in an increasingly digital world. Whether for work or leisure, the Desa CRN30 promises to deliver outstanding results.
Top Page Image Contents