DeWalt DXH170FAVT Instruction Manual
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INSTRUCTION MANUAL
GUIDE DE’UTILISATION
MANUAL DE INSTRUCCIONES
INSTRUCTIVO DE OPERACION, CENTROS DE SERVICIO Y POLIZA
DE GARANTIA, ADVERTENCIA: LEASE ESTE INSTRUCTIVO ANTES
DE USAR EL PRODUCTO.
Forced Air Propane Construction Heater DXH170FAVT
Forced Air Propane Chauffe-Construction DXH170FAVT
Propano forzado calentador Construcción Aire DXH170FAVT
4/13 40796 Rev13A
READ INSTRUCTIONS CAREFULLY: Read
and follow all instructions. Place instructions
in a safe place for future reference. Do
not allow anyone who has not read these
instructions to assemble, adjust or operate
the heater.
VEUILLEZ LIRE ATTENTIVEMENT LES INSTRUCTIONS :
Lisez et observez toutes les instructions. Conservez
ces instructions dans un endroit sécuritaire pour vous
y référer ultérieurement. Interdisez à quiconque n’ayant
pas lu les présentes instructions d’assembler, d’ajuster
ou de faire fonctionner la fournaise.
LEA CUIDADOSAMENTE LAS INSTRUCCIONES:
Lea y siga todas las instrucciones. Conserve
estas instrucciones en un lugar seguro para futura
referencia. No permita que nadie que no haya
leído estas instrucciones arme, ajuste o use el
calentador.
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WARNING:
Combustion byproducts produced when using this product
contain carbon monoxide, a chemical known to the State of
California to cause cancer and birth defects (or other reproductive
harm).
This product contains chemicals known to the State of California to
cause cancer and birth defects or other reproductive harm.
WARNING: DO NOT OPERATE THIS HEATER UNTIL YOU READ
AND UNDERSTAND THIS INSTRUCTION MANUAL FOR SAFETY,
OPERATION, AND MAINTENANCE INSTUCTIONS.
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 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.
DANGER:
CARBON MONOXIDE CAN KILL YOU
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.
WARNING:
Not for home or recreational vehicle use. Do not use to cook or warm food.
WARNING:
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
RESULT CAUSING PROPERTY DAMAGE, PERSONAL
INJURY OR LOSS OF LIFE.
• 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.
Definitions: 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.
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CONTENTS
WARNINGS ........................................................................2-3
HEATER SPECIFICATIONS
................................................... 3
OPERATING PRECAUTIONS
................................................ 4
SAFETY PRECAUTIONS
....................................................... 4
ODOR FADE WARNING
........................................................ 5
OPERATING INSTRUCTIONS
.............................................. 6
SERVICING
............................................................................ 7
SIZE & CAPACITY OF PROPANE CHAR
T ............................. 7
BTU’S REQUIRED CHART
.................................................... 7
WIRING DIAGRAM
................................................................ 8
REPLACEMENT PARTS LIST
................................................ 9
WARRANTY
......................................................................... 10
SERVICE AND PAR
TS ORDERING INFORMATION
............ 10
WARNING: RISK OF FIRE OR EXPLOSION
• Do not store or use gasoline or other ammable vapors and liquids in
the vicinity of this or any other appliance.
• WHAT TO DO IF YOU SMELL GAS:
• Open windows.
• DO NOT try to light any appliance.
• DO NOT operate any electrical switches.
• DO NOT use any telephone in building. Immediately call the
local gas supplier from an outside telephone. Follow the gas
supplier’s instructions.
• DO NOT touch any electrical switch; do not use any phone in your
building.
• If you cannot reach your gas supplier, call the Fire Department.
SPECIFICATIONS
MODEL NO. .......................................................................... 170FAVT
GAS TYPE
...........................................................................Propane
B
TU RATING.
................................................ 125
,000-170,000 BTU/hr
(36.6 - 4
9.8 kW)
GAS SU
PPLY PRESSURE TO REGULATOR
......................................
..............Maximum: B
ottle Pressure, Minimum: 20 psi (137.89 kPa)
R
EGUL
ATOR OUT
............................................... 20 psi (13
7.89 kPa)
ELECTRICAL INPUT
............................................ 115V
, 60 Hz, 1Ø, 3a
IGNITION
..............................................Direc
t Spark, interrupted type
PRIMARY FLAME CONTROL
.................. Solid Stat
e,10-15 sec. timing
FUEL CONSUMPTION ............................................... 5.8 - 7.9 lbs/hr
(2.6 - 3.
6 kg/hr)
F
UEL ORIFICE PORT SIZE: ...........................................1.5MM FAVT
Opening Opening
Heater near floor near ceiling
Forced air (170 FAV T ) 3 ft2 3 ft
2
Figure 1
VENTILATION: Minimum openings required
Clearance Forced Air 170FAVT
From floor .......................................................0 ft
From outlet .....................................................8 ft
From sides ......................................................2 ft
From top .........................................................3 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 2: MINIMUM CLEARANCE: From normal combustible materials
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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.
Propane is heavier than air. If propane leaks from a connection or fitting, it
sinks to the floor, collecting there with the surrounding air, forming a potentially
explosive mixture. Obviously, propane leaks should be avoided, so set up the
propane supply with utmost care. Read enclosed Odor Fade and Propane
Sheet for additional information about detecting propane leaks. Leak check
new connections or reconnections with a soap and water solution and follow all
connection instructions herein. Also, ask your propane dealer for advice on the
propane application and supply installation and ask him to check it if there are
any questions.
This heater was designed and certified for use as a construction heater in
accordance with ANSI Standard Z83.7/CGA 2.14. Check with your local fire safety
authority if you have any questions about your applications. Other standards
govern the use of fuel gases and heat producing products in specific applications.
Your local authority can advise you about these.
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. We can tolerate small amounts but not a lot. 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
So, be sure to follow advice about ventilation in these operating instructions.
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,
Safety Precautions
WARNING
WARNING
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.
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 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 enclosed Odor fade
and Propane Sheet for additional information about detecting propane leaks.
10. Install the heater such that it is not directly exposed to water spray, rain and/or
dripping water.
11. Maintain minimum clearance from normal combustible material (like paper).
Figure 2.
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.
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WARNING: RISK OF ASPHYXIATION
• Do not use in unventilated areas.
•
The flow o
f 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.
•
Refe
r to the specification section of the heater’s manual, heater dataplate,
or contact the factory to determine combustion air ventilation
require
ments of the heater.
• Lack of proper ventilation air will lead to improper combustion.
•
Improper combu
stion can lead to carbon monoxide poisoning leading to
serious injury or
deat
h. Symptoms of carbon monoxide poisoning
can include headache
s, dizziness and difficulty in breathing.
•
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.
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
• 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 ame. Do not
use your telephone.
Odor Fade Warning
• 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 pr
opane (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 connement buildings can mask fuel gas odor.
•
The odorant i
n 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
lter out the odorant.
•
Propane (LP) gas odor may differ in intensity at dif
ferent 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.
Odor Fading—No Odor Detected
• 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 r
eason to suspect a propane leak, keep out of all low areas.
• Use your neighbor’s phone and call your fuel gas supplier and your re
department. Do not re
-enter the building or area.
•
Stay out of the building and away from the area until declar
ed safe by
the reghters and your fuel gas supplier.
• FINALLY, let the fuel gas service person and the reghters 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.
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. Do not adjust the heater combustion tube elevation while heater is running or
hot. Adjustments to elevation should only be made after the heater has cooled
to touch.
19. 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.
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Attention—Critical Points to Remember!
• Propane (LP) gas has a distinctive odor. Learn to recognize these odors.
(Reference Fuel Gas Odor and Odor Fading sections above.
•
Even If you are not properly trained in the service and r
epair of the
heater, ALWAYS be consciously aware of the odors of propane (LP) gas
and natural gas.
• If you have not been properly trained in repair and service of propane
(LP) gas then do not attempt to light heater, perform service or repairs, or
make any adjustments to the heater on the propane (LP) gas fuel system.
Operating Instructions
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.
PREPARING FOR OPERATION
START
1. Slowly open the main valve at propane cylinder to prevent excess flow
check valve from closing.
2. Set thermostat to full on. Heater will ignite automatically.
3. Adjust ball valve on control panel to desired burn rate.
4. Set thermostat to desired temperature. Heater will turn off and on
automatically as the temperature varies in the heated area.
STOP
1. Securely close valve on the propane cylinder.
2. Continue to operate heater until all fuel in the hose has burned.
3. Turn the heater thermostat to “off”. For extended shut down or in areas where
the temperature is below 0°F, unplug the heater.
RESTART AFTER SAFETY SHUTDOWN
1. Securely close valve at propane cylinder. Unplug heater.
2. Wait 5 minutes.
3. Restart following “Start” procedure.
MAINTENANCE AND STORAGE
1. The heater should be inspected before each use, and at least annually by a
qualified person.
2. Before each use, check the soft “O” ring seat at the bullnose of the POL fitting.
If the “O” ring is cut, scuffed, or otherwise damaged, replace it with part number
6681.
3. Turn off the gas at the LP-gas supply cylinder(s) when the heater is not in use.
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.
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Servicing
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.
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
HOW MUCH HEAT DO I REQUIRE?
For economy, it is important to match input to that required. But heat requirements
often vary. For example, it usually takes a lot more heat to get things warm than it
does to keep them that
way. Likewise, outside air
temperature usually
changes during the day
so you may need more
heat at night than you
do in the daytime. An
approximation of the heat
required can be found
by using this chart.
Cubic feet Temperature Rise Required (oF)*
of space to
be heated 20o 30o 40o 50
o
5,000 14,000 20,000 27,999 34,000
7,000 19,000 28,000 38,000 47,000
10,000 27,000 40,000 54,000 67,000
15,000 40,000 60,000 80,000
100,000
20,000 54,000 80,000 107,000 133,000
30.000 80,000 120,000 160,000 200,000
50,000 133,000 200,000 266,000 333,000
BTU’S PER HOUR REQUIRED
3 cylinders
2 cylinders
1 cylinder
100# (45.4 kg)
100# (45.4 kg)
100# (45.4 kg)
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When using a thermostat controlled heater, its exit area should be protected
from personnel and warnings posted of sudden startup.
WARNING
Wire Gauge Chart A.W.G.
Name
Plate 120V Cord Length in Feet
Amps. 25 50 100 150
5-6 18 16 14 12
6-8 18 16 12 10
8-12 18 14 12 10
10-12 16 14 10 8
12-14 16 12 10 8
RECOMMENDED MINIMUM GAUGE FOR CORD EXTENSIONS
170FAVT - WIRING CHART
COLOR LENGTH FROM TO
White 7” Valve TerminalBlock
Black 6” On/OffSwitch TerminalBlock
Red-(Hi-Temp) 161/2” HighLimitSwitch Valve
Red-(Hi-Temp) 161/2” HighLimitSwitch TerminalBlock
Orange 11” FlameControl SparkPlug
(Ignition)
Green 7” FlameControl Ground
(Harness)
Red 7” FlameControl TerminalBlock
(Harness)
White 6” FlameControl TerminalBlock
(Harness)
Black 6” FlameControl TerminalBlock
(Harness)
170FAVT - WIRING DIAGRAM
If any original wiring as supplied by the heater must be replaced, it must be
replaced with type AWG 105° C wire or its equivalent except as indicated
(*type SF2-200, **SGI 250° C).
COLOR CODE
B - BLACKR - RED
L - BLUE W - WHITE
G - GREEN
O - ORANGE
9
English
Parts List DXH170FAVT
R E F. # ..............ITEM#............ DESCRIPTION
1
................... 40896 ...........Guard,
rear, assy
2 ................... 215 51 ............. Motor, assy
3
................... 27898 ............ Fan, bla
de
4
................... 40915 ............ Holder,
flame
5
................... 40917 ............ Burner,
mesh, assy
6
................... 40904 ........... Electr
ode, ignition
7
................... 40913 ............ High limit contr
ol, assy
8 ................... 40801 ............ Handle
9
................... 40908 ........... Shield,
radiation, assy
10
................... 40906 ........... Barrel
, upper, assy
11
...................40907 ............ Barr
el, lower, assy
12
................... 40715 ............ High limit control
13
................... 40919 ............ Tubing, ga
s, burner, assy
14 ................... 27808 ............ Flame Control, Potted
15
................... 22254 ............
Thermostat assy
16
...................4 0 716 ............ Terminal Board
17
................... 26070 ............ Loop Clamp, 5/
16
18
................... 40921 ............ Insert
, plastic, controls
19
................... 40916 ............ Base,
metal, assy
20 ...................40895 ........... Base, metal, bottom, panel
21
................... 40829 ........... Knob, the
rmostat
22
................... 40879 ............ Knob, variable
, valve
23
................... 40918 ............ Orifice
24
................... 40900 ........... Holder,
orifice, assy
25
................... 40922 ........... Brkt,
valve, solenoid
26 ...................40877 ............ Valve, variable, assy
27
................... 40959 ............ Male fitting Connect
or
28
................... 20126 ............ Solenoid Valve
, Goyen
29
................... 40958 ............ Male Fitting Conn.
*
..................40923 ...........Hose & reg
.
* ..................21036 ............ Power cord
*
..................26223 ............ Strain re
lief bushing
*Not shown on drawing
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INSTRUCTION MANUAL
Forced Air Propane Construction Heater
DXH170FAVT
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.
Warning:
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 8:30 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
materialandworkmanshipforaperiodof1yearfromdateofpurchase.
DeWalt® will repair or replace this product free of charge if it has been
proventobedefectivewithinthe1-yearperiod,andisreturnedatcustomer
expense with proof of purchase to DeWalt®withinthewarrantyperiod.
Model Starting Serial Number
DXH170FAVT LN-340730-13001001
Z83.7-2011 CSA 2.14-2011
DEWALT®, GUARANTEED TOUGH® and the
yellowandblackcolorschemearetrademarks
of the DEWALT Industrial Tool Co., used under
license.©2013DEWALT.EGI/EnercoGroupInc.
Under license from Dewalt Industrial Tool Co.
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