Desa DNV25NB, DNV40NB installation manual Local Codes, Unpacking, Product Features, Specifications

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OWNER’S MANUAL

LOCAL CODES

Install and use furnace with care. Follow all local codes. In the absence of local codes, use the latest edition of the following:

•National Fuel Gas Code ANS Z223.1, also known as NFPA 54 * (USA)

•National Electric Code ANS/NFPA 70*

•CAN/CGA-B149[.1 or .2] Installation Codes** (Canada).

*Available from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

**Available from:

UNPACKING

1.Remove furnace from carton.

2.Remove all protective packaging ap- plied to furnace for shipment.

3.Remove the following items from carton:

•Hardware package containing four large screws, two small screws, and thermostat mounting plate

•Hardware package (thermostat and two screws)

•Equipment shutoff valve

If any of these items are missing, promptly inform dealer where you bought furnace.

4.Check furnace for any shipping damage. If furnace is damaged, promptly inform dealer where you bought furnace.

PRODUCT

FEATURES

HOT SURFACE IGNITOR

This furnace has an electronic ignitor. There is no standing pilot. No matches or batteries are required.

THERMOSTATIC HEAT CONTROL

The thermostat is temperature sensitive. It automatically turns the furnace on and off. This results in the greatest heating comfort. This can also result in lower gas bills.

LIMIT SWITCH

The limit switch shuts off the gas to the main burner if the furnace becomes too hot to operate safely.

Standards Council of Canada

350 Sparks Street

Ottawa, Ontario K1R 7S8

This furnace must be grounded when in- stalled. Follow all local codes. In the ab- sence of local codes, refer to the National Electrical Code ANS/NFPA No. 70 (U.S.A.) or CSA C22.1 Canadian Electrical Code, Part I (Canada).

The installation must conform with local codes, in the absence of local codes, with the National Fuel Gas Code, ANS Z223.1/Ca- nadian Installation Code, CAN/CGA B149.

When installing furnace in a manufactured (mobile) home, follow the Manufactured Home Construction and Safety Standard, Title 24CFR, Part 3280 (formerly the Fed- eral Standard for Mobile Home Construc- tion and Safety, Title 24, part 280; 1975). When such a standard is not applicable, follow the Standard for Manufactured Home Installations, 1982 (Manufactured Home Sites, Communities, and Set-Ups), ANS A225.1/NFPA 501A.

In Canada, install furnace in accordance with Standard CSA Z240.4 - Gas Equipped Recre- ational Vehicles and Mobile Housing and any applicable local codes and regulations.

Appliance input ratings are based on sea level operation and need not be changed for operation up to 2,000 feet elevation. For operation at elevations above 2,000 feet, manufactured to specified deration condi- tions for Canada and the United States.

SPECIFICATIONS

 

DNV25NB

DNV40NB

*Rated Heating Input (BTU/Hr)

25,000

40,000

Thermal Output Capacity

 

 

(average loss calculation)

18,750 Btu/Hr

30,000 Btu/Hr

Type Gas

Natural Only

Natural Only

Ignition

Hot Surface Ignitor

Hot Surface Ignitor

Operating Amps

1.5

2

Volts/Cycles

120/60

120/60

Main Burner

1

2

Pressure Regulator Setting

3.5" W.C.

3.5" W.C.

Inlet Connection

3/8 NPT

3/8 NPT

Inlet Gas Pressure (in. of water)*

 

 

Maximum

7"

7"

Minimum

5"

5"

Dimensions, Inches (H x W x D)

 

 

Furnace

15 3/32 x 16 1/8 x 23 5/8

15 3/32 x 21 3/4 x 23 5/8

Weight (pounds)

 

 

Furnace

53

71

Shipping

65

98

* For purposes of input adjustment.

201835

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Contents OWNER’S Operation and Installation Manual DNV25NB DNV40NB For Your SafetyFor Your Safety What to do if YOU Smell GAS Dynavent Safety InformationUnpacking Product FeaturesSpecifications Local CodesLocating Furnace InstallationInstallation Items Check GAS TypeCreating Wall Opening and Mounting Furnace Installing ThermostatInstalling in Normal Frame Wall Installing in Masonry WallRouting Thermostat Cable Locating Thermostat on WallConnecting to GAS Supply Connecting Furnace to Gas Supply at Front of FurnaceMounting the Thermostat to Wall Removing Screws on Lower Flange 40,000 BTU/Hr Model Shown Connecting Furnace to Gas Supply at Rear of FurnaceExample Providing Gas Piping to FurnaceChecking GAS Connections Pressure Testing Gas Supply Piping SystemPerformance Check Pressure Testing Furnace Gas ConnectionsFor Your Safety Read Before Lighting Operating FurnaceOperating Instructions Thermostat Control Operation Inspecting Burner FlameNormal Operating Sequence To Turn OFF GAS To FurnaceCleaning and Maintenance Observed Problem Possible Cause Remedy TroubleshootingIgnition Failures Observed Problem Possible Cause Wire and wire connections at probe Parts Wiring Diagrams ReplacementParts Under Warranty Parts not Under WarrantyWhen Gas Quality Is Bad Service HintsTechnical Service When Gas Pressure Is Too LowCabinet Assembly 25,000 BTU/HR Model Illustrated Parts ListCabinet Assembly 40,000 BTU/HR Model Combustion Chamber Assembly 25,000 BTU/HR Model Combustion Chamber Assembly 40,000 BTU/HR Model Burner Assembly 25,000 BTU/HR Model Burner Assembly 40,000 BTU/HR Model Blower Assembly 25,000 BTU/HR Model Blower Assembly 40,000 BTU/HR Model 201835 International Limited Warranty Dynavent GAS Wall Furnace

DNV25NB, DNV40NB specifications

Desa DNV25NB and DNV40NB are contemporary heating solutions designed to meet the demands of modern residential and commercial spaces. Both models integrate advanced technologies, ensuring efficient performance while promoting sustainability and energy conservation.

The DNV25NB is a compact and versatile unit, making it ideal for small to medium-sized environments. It boasts a nominal heating capacity of 25 kW, providing a reliable source of warmth during colder months. One of its main features is the innovative heat pump technology that extracts energy from the environment, thereby lowering electricity consumption compared to traditional heating systems. The unit is also equipped with advanced inverter technology, which allows it to adjust its output according to the heat demand. This results in reduced energy usage and lower utility bills, making it an economical choice for homeowners or businesses aiming to minimize operational costs.

On the other hand, the DNV40NB is designed for larger spaces, offering a robust heating capacity of 40 kW. This model features a dual-stage compressor that enhances its heating efficiency. This technology ensures quick heating response, allowing it to maintain a consistent indoor temperature even in extreme weather conditions. Furthermore, the DNV40NB incorporates smart control systems that enable users to manage settings through a mobile app, providing convenience and remote monitoring capabilities.

Both models are characterized by their eco-friendly refrigerants, which contribute to reduced greenhouse gas emissions. The units are also designed with user-friendly interfaces featuring digital displays, making operation intuitive. Additional safety features, including over-temperature protection and anti-freeze modes, ensure safe usage while prolonging the lifespan of the units.

In terms of installation, both DNV25NB and DNV40NB are designed for easy integration into existing systems. Their compact design enables flexibility in placement without compromising aesthetics. With their reliable performance, energy efficiency, and user-centric technologies, the Desa DNV25NB and DNV40NB offer compelling solutions for those seeking sustainable heating alternatives. Overall, they represent a forward-thinking approach to climate control, combining performance with environmental responsibility.
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