Enerco MH170FAVT User Manual 2
STARTING SN#MHC-701700009880
OPERATING INSTRUCTIONS AND OWNER’S MANUAL
MR. HEATER
MODEL
MH170FAVT
BUDDY-PRO
MODEL
TS170FAVT
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, light, adjust or operate the heater.
HEATSTAR
MODEL
HS170FAVT
Model # 170FAVT
FORCED-AIR PROPANE
CONSTRUCTION HEATER
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 store or use gasoline or other flammable vapors and liquids in the vicinity of this or
any other appliance.
— 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 flame.
• Shut off gas to appliance.
— Service must be performed by a qualified service agency.
This is an unvented gas-fired portable heater. It uses air (oxygen) from the area in which it is used.
Adequate combustion and ventilation air must be provided. Refer to page 3.
70176 Rev. C 4/07ENERCO GROUP, INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 216-916-3000
WARNING: YOUR SAFETY IS IMPORTANT
TO YOU AND TO OTHERS, SO PLEASE READ
THESE INSTRUCTIONS BEFORE YOU OPERATE
THIS 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 THE INSTRUCTIONS SHOULD USE OR
SERVICE THIS HEATER.
IF YOU NEED ASSISTANCE OR HEATER INFORMATION SUCH AS AN INSTRUCTIONS MANUAL,
LABELS, ETC. CONTACT THE MANUFACTURER.
WARNING: NOT FOR HOME OR
RECREATIONAL VEHICLE USE
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.
The State of California requires the following warning:
WARNING:COMBUSTION BY-PRODUCTS
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).
CONTENTS
Specifications .................................................................. 2
Operating Precautions ..................................................... 3
Safety Precations ............................................................. 3
Odor Fade Warning ....................................................... 4
Operating Instructions.................................................... 4
Storage & Service .......................................................... 5
Wiring Diagram .............................................................. 6
Lighting Instructions....................................................... 5
Parts List ....................................................................... 7
Exploded View Drawing ................................................. 7
SPECIFICATIONS
MODEL NO. .............................................. 170FAVT
GAS TYPE ................................................. Propane
BTU RATING. .....................125,000-170,000 BTU/hr
(36.6 - 49.8 kW)
GAS SUPPLY PRESSURE TO REGULATOR ........
Maximum: Bottle Pressure, Minimum: 5 psig (34.5 kPa)
REGULATOR OUT...................... 28" WC (6.97 kPa)
ELECTRICAL INPUT ............... 115V, 60 Hz, 1Ø, 3a
IGNITION ................... Direct Spark, interrupted type
PRIMARY FLAME CONTROL. SolidState,10-15 sec.
timing
HIGH TEMPERATURE CONTROL..........
Minimum Ambient Temp. Rating: 0°F (-17.8°C)
FUEL CONSUMPTION................... 5.8 - 7.9 lbs/hr
FUEL ORIFICE PORT NO.: .................................. 18
FUEL ORIFICE PORT SIZE:........................ 0.80MM
HEATED AIR OUTPUT: .. 450 CFM (12.74 CU M/M)
240°F (116°C)
(2.6 - 3.6 kg/hr)
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Enerco Group, Inc. | Force-Air Propane Construction HeaterOperating Instructions and Owner’s Manual70176 Rev. C 4/07
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 2.14-2000. 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, 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.
SAFETY PRECAUTIONS
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.
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.
Figure 2: MINIMUM CLEARANCE: From normal combustible materials
Clearance Forced Air 170FAVT
Figure 1
VENTILATION: Minimum openings required
Opening Opening
Heater near floor near ceiling
Forced air (170 FAVT) 3 ft
Enerco Group, Inc. | Force-Air Propane Construction Heater Operating Instructions and Owner’s Manual 70176 Rev. C 4/07
2
3 ft
2
From floor .................................................... 0 ft
From outlet................................................... 6 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
3
ODOR FADE WARNING
WARNING
Asphyxiation Hazard
• Do not use this heater for heating human living quarters.
• 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.
FUEL GAS ODOR
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 GO INTO IMMEDIATE ACTION!
• Do not take any action that could ignite the fuel gas. Do
not operate any electrical switches. Do not pull 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 FADING - NO ODOR DETECTED
• Some people cannot smell well. 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.
• 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 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.
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
repair 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.
• 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.
DO NOT WAIT!
Heater Elevation Adjustment
This heater is equiped with an elevation adjustment panel
located at the exhaust end of the control box.
1. 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.
2. To adjust the heater combustion tube elevation, turn the
adjustment screw knob counterclockwise and lift the
combustion tube to desired position.
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Enerco Group, Inc. | Force-Air Propane Construction HeaterOperating Instructions and Owner’s Manual70176 Rev. C 4/07
OPERATING INSTRUCTIONS
PREPARING 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 3wire (grounded) cord of proper wire size.
• 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.
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
heater 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.
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.
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
The charts below 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 the chart).
3. Read the cylinder size required.
All heaters should have: full cylinders
good air circulation
no frost on cylinders
Fuel Cyclinder Capacity: 100#
Enerco Group, Inc. | Force-Air Propane Construction Heater Operating Instructions and Owner’s Manual 70176 Rev. C 4/07
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