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DeWalt DXH35FAHC Instruction Manual page 5

Forced air propane construction heater

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Safety Precautions
THIS IS A HEATING APPLIANCE. DO NOT ATTEMPT TO WARM OR COOK
FOOD ON THIS HEATER.
1. Check the heater thoroughly for damage. DO NOT operate a damaged heater.
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.
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 hang tag 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 either indoor or outdoor use. Adequate ventilation must be provided.
Provide minimum openings of 1/2 sq. ft. (.046 m²) near the floor and 1/2 sq. ft.
(.046 m²) near the ceiling (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.
10. Maintain minimum clearance from normal combustible material as follows:
floor-0 ft. (0 m); outlet-6 ft. (1.83m); sides-2 ft. (.61m); top-6 ft. (1.83m). Locate
10 ft. (3m) from canvas or plastic tarpaulins or similar coverings and secure them
to prevent flapping or movement due to wind action.
11. Due to the high surface and exhaust temperatures, adults and children must
observe clearances to avoid burns or clothing ignition.
12. Operate only on a stable, level surface.
13. Do not use with duct work. Do not restrict inlet or outlet.
14. 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).
15. Use only a properly grounded 3-prong receptacle or extension cord (6 ft (1.83m)
in length minimum).
16. Do not move, handle or service while hot or burning.
17. 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.
Lighting/Operating Instructions
Preparation for Operation
1. Check the heater for possible shipping damage. If any is found, immediately notify
the factory.
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.
Starting Heater
1. THE HEATER POWER CORD MUST BE CONNECTED TO A GROUNDED 115V,
60HZ, 1Ø POWER SOURCE BEFORE HEATER IGNITION and always allow heater
fan (blower) to run for 20 seconds to purge fuel.
2. Open propane supply valve on propane tank slowly. Note: If not opened slowly,
excess-flow check valve will stop gas flow. If this happens, close propane supply
valve and open again slowly. Wait 15 seconds before Step 3.
CAUTION: Be sure motor and fan are running before pushing in manual
control valve button. Flames could flash outside heater or internal damage to
heater may result if motor and fan are not running.
3. Push and hold manual control valve button. Push piezo igniter button repeatedly
until the burner lights.
4. After the burner lights, keep the gas valve button depressed for 30 seconds then
release and the heater will continue to operate.
5

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