Desa 4E769B User Manual

Operating Instructions & Parts Manual

Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! Retain instructions for future reference.

4E769B

Dayton Propane Construction Heater

Description

Dayton Model 4E769B heater is a 35,000 BTU/Hr construction heater. This heater uses propane gas for combustion and electricity to run the motor. It is primarily intended for temporary heating of buildings under construction, alteration, or repair. This heater should only be used indoors but never in occupied dwellings.

Unpacking

1. Remove all packing items applied to heater for shipment. Keep plastic cover caps (attached to inlet connector and hose/regulator assembly) for storage.

2. Remove all items from carton.

3. Check all items for shipping damage. If heater is damaged, promptly inform dealer where you bought heater.

GENERAL HAZARD WARNING

Failure to comply with the precautions and instructions provided with this heater can result in death, serious bodily injury, and property loss or damage from hazards of fire, explosion, burn, asphyxiation, carbon monoxide poisoning, and/ or electrical shock.

Only persons who can understand and follow instructions should use or service this heater.

If you need assistance or heater information such

Figure 1 – Model 4E769B

as an instructions manual, labels, etc. contact the manufacturer.

Form 5S3439

Printed in U.S.A. 03430 1199/511/VCPVP

Fire, burn,

inhalation, and explosion hazard. Keep solid combustibles such as building materials, paper or cardboard, a safe distance away from the heater as recommended by the instructions. Never use the heater in spaces which do or may contain volatile or airborne combustibles, or products such as gasoline, solvents, paint thinner, dust particles, or unknown chemicals.

Not for

home or recreational vehicle use.

Heater is designed and approved for use as a construction heater under ANSI Z83.7. The primary purpose of construction heaters is to provide temporary heating of buildings under construction, alteration or repair, and to provide temporary emergency heat. Properly used, the heater provides safe economical heating. Products of combustion are vented into the area being heated.

We cannot foresee every use which may be made of our heaters. Check with your local fire safety authority if you have questions about heater use.

Other standards govern the use of fuel gases and heat producing products for specific uses. Local authorities can advise you about these.

Version B - For Reduction G016.J

Dayton Operating Instructions and Parts Manual

Dayton Propane Construction Heater

4E769B

General Safety Information

Make certain you read and understand all warnings. Keep these instructions for reference. They are your guide to safe and proper operation of this heater.

Safety information appears throughout these instructions. Pay close attention to them. Below are definitions for the safety information listed throughout this manual.

Under this heading,

installation, operating, and maintenance procedures or practices will be found that, if not carefully followed, WILL result in IMMEDIATE serious personal injury or death.

Under this head-

ing, installation, operating, and maintenance procedures or practices will be found that, if not carefully followed, COULD result in severe personal injury or death.

Under this heading,

installation, operating, and maintenance procedures or practices will be found that, if not carefully followed, MAY result in minor personal injury, product, or property damage.

IMPORTANT: Not every possible circumstance that might involve a hazard can be anticipated. The warnings in this manual and on tags or decals affixed to the unit are therefore not all-inclusive. If a procedure, work method, or operating technique not specifically recommended by Dayton is used, you must make sure it is safe for you and others. You should also ensure that equipment will not be damaged or made unsafe by the operating or maintenance method you choose.

Carbon monoxide

poisoning may lead to death! Some people are more affected by carbon monoxide than others. Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness, and/or nausea. If you have these signs, the heater may not be working properly or the areas may not be sufficiently ventilated. Get fresh air at once! Have heater serviced.

Propane Gas: Propane gas is odorless. An odor-making agent is added to propane gas. The odor helps you detect a propane gas leak. However, the odor added to propane gas can fade. Propane gas may be present even though no odor exists.

• Install and use

heater with care. Follow all local ordinances and codes. In the absence of local ordinances and codes, refer to the Standard for Storage and Handling of Liquefied Petroleum Gas ANSI/NFPA 58. This instructs on the safe storage and handling of propane gases.-

• Use only the hose and factory preset regulator provided with the heater.

• Use only propane gas set up for vapor withdrawal.

• Provide adequate ventilation. Before using heater, provide at least a sixsquare-foot opening of fresh, outside air. This heater produces carbon monoxide, which is listed by the State of California as a reproductive toxin under Proposition 65.

• For indoor use only. Do not use heater outdoors.

• Do not use heater in occupied dwellings or in living or sleeping quarters.

• Do not use heater in a basement or below ground level. Propane gas is heavier than air. If a leak occurs, propane gas will sink to the lowest

possible level and may accumulate to explosive concentrations.

• Keep appliance area clear and free from combustible materials, gasoline, paint thinner, and other flammable vapors and liquids. Dust is combustible. Do not use heater in areas with high dust content.

• Minimum heater clearances from combustibles: Outlet: 6 Ft. Sides: 2 Ft. Top: 6 Ft. Rear: 2 Ft.

• Keep heater at least six feet from propane tank(s). Do not point heater at propane tank(s) within 20 feet.

• Keep propane tank(s) below 100° F.

• Check heater for damage before each use. Do not use a damaged heater.

• Inspect hose before each use of heater. If highly worn or cut, replace before using heater. Use the replacement hose assembly specified in this manual.

• Locate heater on stable and level surface if heater is hot or running.

• Never block air inlet (rear) or air outlet (front) of heater.

• Keep heater away from strong drafts, water spray, rain, or dripping water.

• Keep children and animals away from heater.

• Never move, handle, or service a hot, operating, or plugged-in heater. Severe burns may result. You must wait 15 minutes after turning heater off.

• Never attach duct work to heater.

• Do not alter heater. Keep heater in its original state.

• Do not use heater if altered.

• Turn off propane supply and unplug heater when not in use.

• Use only original replacement parts. This heater must use design-specific parts. Do not substitute or use generic parts. Improper replacement parts could cause serious or fatal injuries.

Dayton Operating Instructions and Parts Manual

Model 4E769B

General Safety Information

(Continued)

• The electrical connections and grounding of the heater shall follow the National Electric Code, ANSI/ NFPA 70.

• Use only the electrical voltage and frequency specified on model plate.

• Electrical grounding instructions — This appliance is equipped with a three-prong (grounding) plug for your protection against shock hazard and should be plugged directly into a properly grounded three-prong receptacle.

• Use only a three-prong, grounded extension cord.

Specifications

ELECTRICAL SPECIFICATIONS

Electrical Input Amperage

120 Volt/60Hertz 2

GENERAL SPECIFICATIONS

Output Fuel Size Regulator Weight Rating BTU/Hr Fuel Consumption L x W x H (Inches) Outlet Pressure (pounds)

35,000 Only Propane Vapor .38 Gallons/Hour 18.5 x 7.7 x 12.8 11" WC 14.5 (Heater)

1.6 Pounds/Hour 16 (Shipping)

GENERAL SPECIFICATIONS (Cont.)

Manifold Hot Air Output Supply Pressure Temperature Range Pressure (CFM Approx) Ignition To Regulator For Operating Heater Motor

10.8" WC 175 Manual 10 psi Minimum (for) -20° F to 85° F* 2735 RPM

Piezo purposes of input

adjustment) Tank Pressure or 200 psi Maximum

(*) When running heater in temperatures above 85° F, high internal temperatures may cause thermal limit device to shut down

heater.Minimum ambient operating temperature: -20°F (-28°C).

Version B - For Reduction G016.J

Dayton Operating Instructions and Parts Manual

Dayton Propane Construction Heater

Product Identification

Shell

Hot Air Outlet (Front)

4E769B

Handle

Heater Base

Piezo Ignitor Button

Automatic Control Valve Button

Hose /Regulator Assembly

Motor

Fan Guard

Inlet Connector

Power Cord

Figure 2 – Model 4E769B

Dayton Operating Instructions and Parts Manual

Model 4E769B

Theory of Operation

THE FUEL SYSTEM

The hose/regulator assembly attaches to the propane gas supply. This provides fuel to the heater.

THE AIR SYSTEM

The motor turns the fan. The fan pushes air into and around the combustion chamber. This air is heated and provides a stream of clean, hot air.

Combustion Chamber

Clean Heated Air Out (Front)

THE IGNITION SYSTEM

The piezo ignitor lights the burner.

THE AUTOMATIC CONTROL SYSTEM

This system causes the heater to shut down if the ﬂame goes out.

Fan

Motor

Cool Air In (Back)

Propane Supply

Propane gas and propane tank(s) must to provided by the customer.

Use this heater only with a propane vapor withdrawal supply system. See Chapter 5 of the Standard for Storage

and Handling of Liqueﬁed Petroleum Gas, ANSI/NFPA 58. Your local library or

ﬁre department will have this booklet.

The amount of propane gas ready for use from propane tanks varies. Two factors decide this amount:

1. The amount of propane gas in tank(s)

2. The temperature of tank(s)

This heater is designed to operate with a minimum 20-pound propane tank. You may need two or more tanks or one larger tank in colder weather. Use a 100-pound tank for longer operation or in very cold weather. Less gas is vaporized at lower temperatures. Your local propane gas dealer will help you select the proper supply system. The minimum surrounding air temperature rating for each heater is -20°F (-29°C).

Hose/Regulator Assembly

Air For Combustion Air For Heating

Figure 3 - Cross Section Operational View

Average Temperature Number of Tanks (oF) at Tank Location (100 pound)

40° 1 32° 1 20° 1 10° 1

0° 1

-10° 2

-20° 2

Version B - For Reduction G016.J

+ 11 hidden pages