Desa DNV40NB Service Hints, Parts Centrals, Technical Service, When Gas Pressure Is Too Low

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DYNAVENT®

DIRECT-VENT NATURAL GAS HEATER

SERVICE HINTS

When Gas Pressure Is Too Low

glo-bar glows, but burner will not ignite

When Gas Quality Is Bad

burner will not stay lit

burner will produce flames and soot

You may feel your gas pressure is too low or gas quality is bad. If so, contact your local gas supplier.

PARTS CENTRALS

Howard Industries 8855 Washington Blvd. Culver City, CA 90232 310-837-9100 www.howind.com

Victor Manufacturing

42 Rumsey Road

E. Hartford, CT 06108-1164 NY, NJ, DE, PA, MD 1-800-243-9360 203-289-4223

Fax: 1-800-274-2004 www.fwwebb.com

Controlled Engineering 299 Roosevelt Road Glen Ellyn, IL 60137-5618630-469-7300 www.controld.com

Portable Heater Parts

342 N. Country Road 400E

Valparaiso, IN 46383-9704 1-800-362-6951 219-462-7441 www.portableheaterparts.com sales@portableheaterparts.com techservice@portableheaterparts.com

F B D

1349 Adams Street

Bowling Green, KY 42103-3414 1-800-654-8534 (270) 846-1199

Fax: 1-800-846-0090 franktalk@aol.com

TECHNICAL

SERVICE

You may have further questions about in- stallation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at 1-800-323-5190.

You can also visit DESA International’s technical service web site at www.desatech.com.

These Parts Centrals are privately owned businesses. They have agreed to support our customer’s needs by providing original replacement parts and accessories. For certain parts, some Parts Centrals may refer you to a dealer in your area. When calling a Parts Central, ask for the Parts Department.

Master Parts Dist.

Central Air Supply

1251 Mound Ave. NW

424 North Rockwell

Grand Rapids, MI 49504-2672

Oklahoma City, OK 73127-6119

1-800-446-1446

405-495-0014

616-791-0505

Halco Enterprises

Fax: 616-791-8270

ww.nbmc.com

208 Carter Drive, Unit 21

Washer Equipment Co.

West Chester, PA 19382-4500

1-800-368-0803

1715 Main Street

610-430-7717

Kansas City, MO 64108-2195

www.halcoenterprises.com

KS, MO, AR

Laportes Parts & Service

816-842-3911

Controls, Inc.

2444 N 5th Street

Hartsville, SC 29550-7704

6820 Glenwood Ave.

803-332-0191

Raleigh, NC 27612-7133

Cans Unlimited, Inc.

NC, SC, VA, MD

1-800-334-5886

P. O. Box 649

919-787-2242

Taylor, SC 29687-0013

Tarantin Tank Co.

1-800-845-5301

803-879-3009

P.O. Box 6129

cuisales@aol.com

Freehold, NJ 07728-6129

Hughes Supply

1-800-922-0724

908-780-9340

1311 S Fern Street

www.tarantin.com

Arlington, VA 22202-2809

East Coast Energy

703-416-8555

Tuco Industrial Products

707 Broadway

W. Long Branch, NJ 07764-1542

5223 180th St. SW, Suite 4A-1

1-800-755-8809

Lynwood, WA 98037-4506

732-870-8809

1-800-735-1268

www.njplaza.com/ecep

425-743-9533

Dayton Hardware

www.tucoheat.com

Auer Steel & Heating Supply

P. O. Box 275

North Dayton Station

2935 W. Silver Spring Dr.

Dayton, OH 45404-0275

Milwaukee, WI 53209-4224

Ohio Only - 1-800-762-3426

414-463-1234

937-258-3721

www.auersteel.com

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201835

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Contents For Your Safety What to do if YOU Smell GAS OWNER’S Operation and Installation Manual DNV25NB DNV40NBFor Your Safety Safety Information DynaventProduct Features SpecificationsLocal Codes UnpackingInstallation Installation ItemsCheck GAS Type Locating FurnaceInstalling Thermostat Installing in Normal Frame WallInstalling in Masonry Wall Creating Wall Opening and Mounting FurnaceLocating Thermostat on Wall Routing Thermostat CableMounting the Thermostat to Wall Connecting to GAS SupplyConnecting Furnace to Gas Supply at Front of Furnace Connecting Furnace to Gas Supply at Rear of Furnace Removing Screws on Lower Flange 40,000 BTU/Hr Model ShownProviding Gas Piping to Furnace ExamplePressure Testing Gas Supply Piping System Checking GAS ConnectionsPressure Testing Furnace Gas Connections Performance CheckOperating Instructions For Your Safety Read Before LightingOperating Furnace Inspecting Burner Flame Normal Operating SequenceTo Turn OFF GAS To Furnace Thermostat Control OperationCleaning and Maintenance Troubleshooting Observed Problem Possible Cause RemedyIgnition Failures Observed Problem Possible Cause Wire and wire connections at probe Wiring Diagrams Replacement Parts Under WarrantyParts not Under Warranty PartsService Hints Technical ServiceWhen Gas Pressure Is Too Low When Gas Quality Is BadIllustrated Parts List Cabinet Assembly 25,000 BTU/HR ModelCabinet 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 Limited Warranty Dynavent GAS Wall Furnace International

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.