DXH125FAV - Heating DEWALT - Free user manual and instructions

USER MANUAL DXH125FAV DEWALT

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 re, explosion, burn, asphyxiation, carbon monoxide poisoning, and/or electrical shock. Only persons who can understand and follow the instructions should use or service this heater.

This heater produces carbon monoxide. Do not use in occupied spaces. Ventilate building, room or other enclosed spaces where heater has been used before entering. Never use in a vehicle, camper or tent.

Not for home or recreational vehicle use. Do not use to cook or warm food.

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.

WARNING: IF THE INFORMATION IN THIS MANUAL IS

NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY

• Do not use gasoline or other ammable vapors or liquids in the vicinity of this or any other applicance.

• An LP cylinder not connected for use shall not be stored in the vicinity of this or any other appliance.

• WHAT TO DO IF YOU SMELL GAS:

• Do not try to light appliance.

• Extinguish any open ame.

• Shut off gas to appliance.

• Service must be performed by a qualied service agency.

WARNING: RISK OF ELECTRICAL SHOCK

• Plug power cord into a properly grounded 3-wire receptacle.

• Do not operate in wet or damp conditions. Denitions: Safety Guidelines The denitions below describe the level of severity for each signal word. Please read the manual and pay attention to these symbols.

DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. NOTICE: Indicates a practice not related to personal injury which, if not avoided, may result in property damage.

WARNING: THIS PRODUCT CAN EXPOSE YOU TO CHEMICALS

INCLUDING LEAD AND LEAD COMPOUNDS, WHICH ARE KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER AND BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM. FOR MORE INFORMATION VISIT WWW.P65WARNINGS.CA.GOV

WARNING: Fuels used in liqueed propane gas appliances, and

the products of combustion of such fuel, can expose you to chemicals including benzene, which is known to the state of California to cause cancer and cause birth defects or other reproductive harm, for more information go to www.P65Warnings.ca.gov NEVER LEANEVER LEANEVER LEA AVE THE HEVE THE HEAVE THE HEATER UNATER UNATER UNATTENDED WHILE BURNING!TTENDED WHILE BURNING!TTENDED WHILE BURNING!English

6. Locate propane containers at least (USA) 7 ft. (2.13m), (Canada) 10 ft. (3m)

from the heater and do not direct exhaust toward containers.

7. IMPORTANT Use only the hose and regulator assembly provided with the

heater. Match the color stripe on the hangtag attached to the hose assembly with the color on the label located near the propane inlet fitting on the heater. Inspect hose assembly before each use of the heater. If there is excessive abrasion or wear, or hose is cut, replace with hose assembly listed on parts list before using heater.

8. For indoor use only. Area must be well ventilated. Figure 1. (also see

“Operating Precautions”).

9. If at any time gas odor is detected, IMMEDIATELY DISCONTINUE operation

until the source of gas has been located and corrected. Read Odor Fade and Propane information on page 5, for additional information about detecting propane leaks.

10. Install the heater such that is is not directly exposed to water spray, rain and/or

12. Due to the high surface and exhaust temperatures, adults and children must

observe clearances to avoid burns or clothing ignition.

13. Operate only on a stable, level surface.

14. Do not use with duct work. Do not restrict inlet or exit.

15. Use only the electrical power specified. The electrical connection and

grounding must comply with National Electrical Code - ANSI/NFPA 70 (USA) and CSA C22.1 Canadian Electrical Code, Part 1 (Canada).

16. Use only a properly grounded 3-prong receptacle or extension cord.

17. Do not move, handle or service while hot or burning.

18. Use only in accordance with local codes or, in the absence of local codes, with

the Standard for the Storage and Handling of Liquefied Petroleum Gases ANSI/ NFPA 58 and CSA B149.1, Natural Gas and Propane Installation Code. Safety Precautions

1. Check the heater thoroughly for damage. DO NOT operate a damaged

2. DO NOT modify the heater or operate a heater which has been modified

from its original condition.

3. Use only propane gas.

4. Use only VAPOR WITHDRAWAL propane supply. If there is any question

about vapor withdrawal, ask your propane dealer.

5. Mount the propane cylinders vertically (shutoff valve up). Secure them from

falling or being knocked over and protect them from damage. Operating Precautions This is a propane, direct-fired, forced air heater. It’s intended use is primarily temporary heating of buildings under construction, alteration or repair. Direct-Fired means that all of the combustion products enter the heated space. Even though this heater operates very close to 100 percent combustion efficiency, it still produces small amounts of carbon monoxide. Carbon monoxide (called CO) is toxic. CO can build up in a heated space and failure to provide adequate ventilation could result in death. The symptoms of inadequate ventilation are:

• headache • dizziness

• burning eyes and nose • nausea

• dry mouth or sore throat Be sure to follow advice about ventilation in the Safety Precautions section. Forced Air means that a blower or fan pushes the air through the heater. Proper combustion depends upon this air flow; therefore, the heater must not be revised, modified or operated with parts removed or missing. Likewise, safety systems must not be circumvented or modified in order to operate the heater. When the heater is to be operated in the presence of other people the user is responsible for properly acquainting those present with the safety precautions and instructions, and of the hazards involved. WARNING WARNING NEVER LEANEVER LEANEVER LEA AVE THE HEVE THE HEAVE THE HEATER UNATER UNATER UNATTENDED WHILE BURNING!TTENDED WHILE BURNING!TTENDED WHILE BURNING!English

• From outlet p. 8
• ft p. 8
• ft. From sides p. 3
• ft p. 3
• ft. From top p. 6
• ft ft. Locate 10 ft. from canvas or plastic tarpaulins or similar coverings and secure them to prevent flapping or movement due to wind action. Figure 1 VENTILATION: Minimum openings required Opening Opening Heater near floor near ceiling Forced air ( p. 6

Fuel Gas Odor—Fuel Leaks LP gas and natural gas have man-made odorants added specifically for detection of fuel gas leaks. If a gas leak occurs you should be able to smell the fuel gas. Since Propane (LP) is heavier than air you should smell for the gas odor low to the floor. ANY GAS ODOR IS YOUR SIGNAL TO TAKE IMMEDIATE ACTION! WARNING

WARNING: RISK OF ASPHYXIATION

• Do not use in unventilated areas.

• The flow of combustion and ventilation air must not be obstructed.

• Proper ventilation air must be provided to support the combustion air requirements of the heater being used.

• Refer to the specification section of the heater’s manual, heater dataplate, or contact the factory to determine combustion air ventilation requirements of the heater.

• Lack of proper ventilation air will lead to improper combustion.

• Improper combustion can lead to carbon monoxide poisoning leading to serious injury or death. Symptom of carbon monoxide poisoning can include headaches, dizziness and difficulty in breathing.

• Do not take any action that could ignite the fuel gas. Do not operate any electrical switches. Do not plug in or disconnect any power supply or extension cords. Do not light matches or any other source of flame. Do not use your telephone.

• Get everyone out of the building and away from the area immediately.

• Close all propane (LP) gas tank or cylinder fuel supply valves, or the main fuel supply valve located at the meter if you use natural gas.

• Propane (LP) gas is heavier than air and may settle in low areas. When you have reason to suspect a propane leak, keep out of all low areas.

• Use your neighbor’s phone and call your fuel gas supplier and your fire department. Do not re-enter the building or area.

• Stay out of the building and away from the area until declared safe by the firefighters and your fuel gas supplier.

• FINALLY, let the fuel gas service person and the firefighters check for escaped gas. Have them air out the building and area before you return. Properly trained service people must repair any leaks, check for further leakages, and then relight the appliance for you. Odor Fade Warning Odor Fading—No Odor Detected

• Some people cannot smell the odor of the man-made chemical added to propane (LP) or natural gas. You must determine if you can smell the odorant in these fuel gases.

• Learn to recognize the odor of propane (LP) gas and natural gas. Local propane (LP) gas dealers will be more than happy to give you a scratch and sniff pamphlet. Use it to become familiar with the fuel gas odor.

• Smoking can decrease your ability to smell. Being around an odor for a period of time can affect your sensitivity to that particular odor. Odors present in animal confinement buildings can mask fuel gas odor. NEVER LEANEVER LEANEVER LEA AVE THE HEVE THE HEAVE THE HEATER UNATER UNATER UNATTENDED WHILE BURNING!TTENDED WHILE BURNING!TTENDED WHILE BURNING!English

• The odorant in propane (LP) gas and natural gas is colorless and the intensity of its odor can fade under some circumstances.

• If there is an underground leak, the movement of gas through the soil can filter out the odorant.

• Propane (LP) gas odor may differ in intensity at different levels. Since Propane (LP) gas is heavier than air, there may be more odor at lower levels.

• Always be sensitive to the slightest gas odor. If you continue to detect any gas odor, no matter how small, treat it as a serious leak. Immediately go into action as discussed previously.

• A periodic sniff test around the heater or at the heater’s joints; i.e. hose, connections, etc., is a good safety practice under any conditions. If you smell even a small amount of gas, CONTACT YOUR FUEL GAS SUPPLIER IMMEDIATELY.

PREPARING FOR OPERATION

Operating Instructions

1. Check the heater for possible shipping damage. If any is found, immediately

2. Follow all of the “Precautions”.

3. Connect the POL fitting of hose and regulator assembly to the propane

cylinder by rotating the POL nut counterclockwise into the propane cylinder’s valve outlet and securely tighten with a wrench.

4. Connect the hose to the heater by rotating the hose fitting clockwise.

5. Securely tighten all gas connections.

6. Open the cylinder’s gas valve and check all gas connections with a soap

and water solution. DO NOT USE A FLAME.

7. Connect power cord to well-grounded 115V, 60 Hz, 1Ø source of power.

8. When using an extension cord, make certain that it is a 3-wire (grounded)

cord of proper wire size.

1. Securely close valve on the propane cylinder.

2. Continue to operate heater until all fuel in the hose has burned.

1. Before heater ignition, always allow heater fan (blower) to run for 20

seconds to purge fuel.

2. Slowly open the main valve at propane cylinder.

3. Depress the fuel valve button to light the heater.

4. After the heater lights, keep the gas valve button depressed for 15 seconds

then release and the heater will continue to operate.

5. Adjust burn rate by setting control knob to desired level.

6. Igniter continues to fire as long as power cord is plugged in.

7. No thermostat can be used with these units.

1. Securely close valve at propane cylinder. Unplug heater.

3. Restart following “Start” procedure.

1. The heater should be inspected before each use, and at least annually by a

2. Before each use, check the soft “O” ring seal at the bullnose of the POL

fitting. If the “O” ring is cut, scuffed, or otherwise damaged, replace it with part number 73786.

3. Turn off the gas at the LP-gas supply cylinder(s) when the heater is not in

4. When the heater is to be stored indoors, the connection between the

LP-gas supply cylinder(s) and the heater must be disconnected and the cylinder(s) removed from the heater and stored out of doors and in accordance with Chapter 5 of the standard for Storage and Handling of Liquefied Petroleum Gases ANSI/NFPA 58 and CSA B149.1, Natural Gas and Propane Installation Code.

MAINTENANCE AND STORAGE

Size and Capacity of Propane Cylinders Required The charts on the following page show the approximate size of the cylinder required for these heaters. To use the chart:

1. Select the lowest air temperature expected (at the bottom of the chart).

2. Move straight up to time of operation desired (left side of chart).

3. Read the cylinder size required.

All heaters should have: full cylinders good air circulation no frost on cylinders A hazardous condition may result if a heater is used that has been modified or is not functioning properly. When the heater is working properly:

• The flame is contained within the heater.

• The flame is essentially blue with perhaps some yellow tipping.

• There is no strong disagreeable odor, eye burning or other physical discomfort.

• There is no smoke or soot internal or external to the heater.

• There are no unplanned or unexplained shut downs of the heater. The parts lists and wiring diagram show the heater as it was constructed. Do not use a heater which is different from that shown. In this regard, use only the hose, regulator and cylinder connection fitting (called a POL fitting) supplied with the heater. IMPORTANT Match the color stripe on the hangtag attached to the hose assembly with the color on the label located near the propane inlet fitting on the heater. Do not use alternates. For this heater, the regulator must be set as shown in “specifications”. If there is any uncertainty about the regulator setting, have it checked. A heater which is not working right must be repaired, but only by a trained, experienced service person. In-warranty products will be repaired with no charge for either parts or labor. Please include a brief statement indicating date, place of purchase, the nature of the problem and proof of purchase. Out-of-warrranty products will be repaired with a charge for parts and labor. Servicing NEVER LEANEVER LEANEVER LEA AVE THE HEVE THE HEAVE THE HEATER UNATER UNATER UNATTENDED WHILE BURNING!TTENDED WHILE BURNING!TTENDED WHILE BURNING!English

........... Main, gas valve

• Do not use this heater for heating human living quarters.

• Use of direct-red heaters in the construction environment can result in exposure to levels of CO, CO2, and NO2 considered to be hazardous to health and potentially life threatening.

• Do not use in unventilated areas.

• Know the signs of CO and CO2 poisoning.

• Difculty breathing, feels of being suffocated

• Proper ventilation air exchange (OSHA 29 CFR 1926.57) to support combustion and maintain acceptable air quality shall be provided in accordance with OSHA 29 CFR Part 1926.154, ANSI A10.10 Safety Requirements for Temporary and Portable Space Heating Devices and Equipment used in the Construction Industry or the Natural Gas and Propane Installation Codes CSA B149.1.

• Periodically monitor levels of CO, CO2 and NO2 existing at the construction site – at the minimum at the start of the shift and after 4 hours.

• Provide ventilation air exchange, either natural or mechanical, as required to maintain acceptable indoor air quality. USA 8-Hr Time weighted average (OSHA 29 CFR 1926.55 App A) Canada 8-hr time weighted average WorkSafe BC OHS Guidelines Part

5.1 and Ontario Workplaces Reg 833

5 ppm 1.0 ppm (WorkSafeBC)

• Ensure that the ow of combustion and ventilation air exchange cannot become obstructed.

• As the building ‘tightens up’ during the construction phases ventilation may need to be increased.

NEVER LEAVE HEATER UNATTENDER WHILE BURNING13

INSTRUCTION MANUAL Forced Air Propane Construction Heater

DXH125FAV, DXH150FAV

PARTS ORDERING INFORMATION: Use only manufacturer’s replacement parts. Use of any other parts could cause injury or death. Replacement parts are only available direct from the factory and must be installed by a qualified service agency.

PURCHASING: Accessories may be purchased at any DeWalt

local dealer or direct from the factory FOR INFORMATION REGARDING SERVICE: Please call Toll-Free 855-805-5745 www.dewalt.com Our office hours are 8:00 AM – 5:00 PM, EST, Monday through Friday. Please include the model number, date of purchase, and description of problem in all communication. LIMITED WARRANTY: DeWalt

warrants its heaters and accessories to be free from defects in material and workmanship for a period of 1 year from date of purchase. DeWalt

will repair or replace this product free of charge if it has been proven to be defective within the 1-year period, and is returned at customer expense with proof of purchase to DeWalt

(-29) 100 lb (45.4 kg) 100 lb (45.4 kg) THERMOCOUPLE

........... Support, HLS