Mr. Heater Heatstar HS50KT, MH50KT, MH75KT, MH125KT, MH175KT Owner's Manual
...
Serial Numbers 0117001 - 0148811
OPERATING INSTRUCTIONS AND OWNER’S MANUAL
MR. HEATER
M
MH50KT, MH75KT,
DO
E
L
125KT, MH175KT
MH
READ INSTRUCTIONS CAREFULLY: Read and
follow all instructions. Place instructions in a
sa
fe place for future reference. Do not allow
anyone who has not read these instructions to
assemble,
light, adjust or operate the heater.
HE
ATSTAR
M
HS50KT, HS75KT,
LEDO
HS
125KT, HS175KT
KEROSENE
FO
RCED-AIR HEATER
WARNING:
— Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any
other appliance.
— Service must be performed by a qualified service agency.
This is an unvented 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.
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.
UL-733, &CSA/CAN3-B140.9.3
04/04 Revision L1 #70276ENERCO GROUP, INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 216-881-5500
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.
WARNING:
The State of California requires the following 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).
WARNING:
• DO NOT USE GASOLINE, NAPHTHA OR VOLATILE
FUELS.
• STOP HEATER BEFORE ADDING FUELS.
• ALWAYS FILL OUTDOORS AWAY FROM OPEN FLAME
• DO NOT USE EXTERNAL FUEL SOURCE.
• DO NOT OPERATE HEATER WHERE FLAMMABLE
LIQUIDS OR VAPORS MAY BE PRESENT.
• DO NOT START HEATER WHEN CHAMBER IS HOT
• DO NOT START HEATER WHEN EXCESS FUEL HAS
ACCUMULATED IN THE CHAMBER.
• DO NOT PLACE COOKING UTENSILS ON TOP OF THE
HEATER.
• PLUG ELECTRICAL CORD INTO A PROPERLY
GROUNDED THREE-PRONG RECEPTACLE.
50K & 75KT WARNING:
Not suitable for use on wood floors or other
combustible materials. When used the heater
should rest on a suitable insulating material at least
1 inch thick and extending 3 feet or more beyond
the heater in all directions.
CONTENTS
WARNINGS ................................................................................. 2
HEATER SPECIFICATIONS ............................................................ 3
OPERATING PRECAUTIONS ......................................................... 3
SAFETY PRECAUTIONS ................................................................ 3
OPERATING INSTRUCTIONS ........................................................ 4
MAINTENANCE, STORAGE AND SERVICE ................................... 5
WIRING DIAGRAM...................................................................... 6
PARTS LIST .................................................................................. 6
EXPLODED VIEW......................................................................... 7
WARRANTY ................................................................................ 8
INSTRUCTIONS FOR ORDERING PARTS ....................................... 8
Enerco Group, Inc. | Kerosene Forced Air Heater Operating Instructions and Owner’s Manual
2
SPECIFICATIONS
Type of Fuel: For use with Kerosene or #1 Fuel Oil ONLY on ALL models.
Model ...................................... 50K ............................................. 75KT .......................................125KT ....................................... 175KT
Burn Rate:................................ 50,000 Btu/hr (15 kW) ...............75,000 Btu/hr (22 kW) ......... 125,000 Btu/hr (37 kW) ........... 175,000 Btu/hr (51 kW)
Fuel Rate:................................. 0.37 gal/hr (1.4 L/hr) ................. 0.55 gal/hr (2.1 L/hr) ............. 0.96 gal./hr (3.5 L/hr) ............. 1.3 gal/hr (5.0 L/hr)
Electrical Input: ........................ 115V, 60Hz, 3.5a......................... 115V, 60Hz, 4a ....................... 115V, 60Hz, 5.5a ...................... 115V, 60Hz, 5.5a
Line Protection:........................ 10 amps ...................................... 10 amps ................................. 20 amps ................................... 20 amps
Min. Operating Voltage: .......... 110V ............................................110V ....................................... 110V ......................................... 110V
Pressure Setting: ...................... 3.5 psig (24 kPa) ........................ 4.2 psig (29 kPa) .................... 5.0 psig (34 kPa) ...................... 5.8 psig (40 kPa)
Max. Outlet Temperature:........ 1300oF (704oC) ............................1300oF (704oC) .......................1300oF (704oC) ......................... 1300oF (704oC)
Fuel Tank Capacity: .................. 4 gallons (15.1 L) ........................6 gallons (22.7 L) ................... 14 gallons (53 L) ...................... 14 gallons (53 L)
Ignition: ................................... Direct Spark, Continuous............ Direct Spark, Continuous ....... Direct Spark, Continuous ......... Direct Spark, Continuous
Spark Generator: ..................... Igniter 13 kV, 10ma .................... Igniter 13 kV, 10ma ................Igniter 13 kV, 10ma .................. Igniter 13 kV, 10ma
Primary Safety Control:............ Solid State Control...................... Solid State Control ................. Solid State Control ................... Solid State Control
Certification:
OPERATING PRECAUTIONS
This is a kerosene, 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. 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 Kerosene. Never use gasoline, naphtha, paint
thinner, alcohol or other fuels of any kind.
4. For indoor use only. Not for use where exposed to weather.
5. Use in well ventilated areas, provide at least 2 sq. ft. (0.19
sq. m.) of opening near the floor and 2 sq. ft. (0.19 sq. m.)
near the ceiling directly to outdoors. Increase air openings as
marked for each additional heater.
6. Always keep combustibles, like paper and wood at least 8
ft. (2.4 m) from the heater outlet and 3 ft. (1.0 m) from the
top, sides and inlet. Locate 10 ft. (3.0 m) from canvas or
plastic coverings and secure them to prevent flapping
movement.
7. Caution: Due to the high surface and exhaust temperatures,
adults and children must observe clearances to avoid burns
or clothing ignition. Do Not Touch. Keep Children, Clothing,
and Combustibles away.
8. Install the heater such that it is not directly exposed to
water spray, rain and / or water.
9. Never use in areas normally for habitation and /or where
children may be present.
10. Operate only on a stable, level surface. (MH50K & MH75KT
– See wood floor warning).
11. Do not use with duct work. Do not restrict inlet or exit.
12. Use only with 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).
13. Use only a properly grounded 3-prong receptacle or
extension cord.
14. Do not move, handle, or service while hot or burning.
15. Use only in accordance with local, state (provincial) or
National requirements, ordinances and codes.
OPERATING INSTRUCTIONS
UNPACKING
1. Remove all protective material which may have been applied
to the heater for shipment.
2. Remove heater from carton.
3. Check the heater for possible shipping damage. If any
damage is found immediately notify the dealer from whom
you purchased the heater.
ASSEMBLY (For 125,000 and 175,000 BTU/hr models only)
Wheel and handles are found in the shipping carton along with
mounting hardware. The wheels, axle and mounting hardware
are in a package. Tools required are a 5/16" nutdriver, 3/8"
open or adjustable wrench and standard pliers.
Enerco Group, Inc. | Kerosene Forced Air Heater Operating Instructions and Owner’s Manual
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1. Assemble the wheels onto the wheel support frame as
follows:
a. Install one of the cotter pins into the hole on one end of
axle.
b. Slide the large washer, then wheel onto the axle next to
the cotter pin.
c. Slide a small washer, spacer, small washer onto the axle
next to the wheel.
d. Slide the partially assembled axle through the wheel
support frame.
e. Slide the small washer, spacer, and small washer onto
the axle next to the wheel support.
f. Slide the wheel then large washer onto the axle and
hold in place with the remaining cotter pin.
g. Install the caps over the larger washers to finish the
wheel assembly.
2. Position the heater on the wheel support frame assembly
with the exit end over the wheels.
3. Use eight screws and nuts to attach the handles to the top of
the tank flange. The screws will go through the handles,
tank flange and wheel support frame. Install the nuts and
finger tight only until all nuts are installed.
4. Tighten all the nuts.
5. Attach cord caddies to handles using No. (14) & No. (5)
screws and nuts.
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. Fill the fuel tank with clean kerosene. In extremely cold
weather, condensation may develop in the tank and it is
recommended that a tablespoon of de-icer be added for each
gallon (4 liters) of fuel in the tank. When filling the heater, use
at least 2 gallons (8 liters) of fuel. Be sure heater is level and
do not overfill. Use a funnel or can with a long fill spout.
IMPORTANT: Before filling fuel tank the first time or after
extended storage periods, drain the fuel tank of any moisture
or condensation.
4. Locate heater at a safe distance from combustible materials.
ModelS 50K & 75KT is not suitable for use on wood floors or
other combustible materials. When used, the heater should
rest on suitable insulating material at least 1 inch thick and
extending 3 ft. or more beyond the heater in all directions.
START
1. 50K: Plug the heater into a grounded 115V, 60 Hz, 1 Ø
outlet.
75KT, 125KT & 175KT: Turn thermostat to lowest
setting, make sure “On/Off” switch is “Off”. Plug the
heater into a grounded 115V, 60 Hz, 1 Ø outlet. Turn
thermostat to highest setting. Start heater by push
toggle switch to “On” position (light signifies switch is
in “ON” position). Adjust thermostat to desired setting.
Heater will cycle on/off as heat is required.
For all models: In cold weather, starting may be
improved by holding a finger over the end of the
pressure adjusting screw until the heater starts. This unit
is equipped with a circuit breaker located near the power
cord. If the unit does not start, check to see that the
reset button is pressed in.
STOP
1. 50K: Unplug heater from power source.
75KT, 125KT & 175KT: Push “On/Off” switch to “Off”
position. For extended shutdown, unplug heater from
power source.
RESTART AFTER SAFETY SHUTDOWN (50K, 75KT, 125KT
& 175KT)
1. Wait 5 minutes.
2. Press reset button.
Handle assembly for 125KT 175KT only.
ITEM PART NO. DESCRIPTION QTY
1 M4365 Handle, Front 1
2 M4338 Handle, Rear 1
3 M4339 Wheel Support Frame 1
4 M6977 Machine Screw Blk (long) 8
5 M6037 Kep Nut Blk 12
6 M8746 Axle 1
7 M8752 Wheel 2
8 M8751 Cap 2
9 M8748 Spacer 2
10 M8747 Washer, Small 4
11 M8749 Washer, Large 2
12 M8750 Cotter Pin 2
13 M8754 Ext. Cord Caddy 2
14 M7336 Machine Screw Blk (Small) 4
Enerco Group, Inc. | Kerosene Forced Air Heater Operating Instructions and Owner’s Manual
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MAINTENANCE AND STORAGE
WARNING. To prevent personal injury, unplug the heater
from the wall outlet before servicing.
For maximum efficiency and trouble-free service, make the
following periodic maintenance, cleaning and inspections.
DAILY SCHEDULE
1. GENERAL. Make general visual inspection of heater for loose
or damaged parts. Check nuts and bolts to insure against
looseness caused by vibration or rough handling. Damaged
parts should be repaired or replaced before using heater
again. Check heater operation to be sure it is operating
normally (See "Servicing" section for description of normal
operation).
2. FILTERS. Dirty air or fuel filters will cause an imbalance in the
air-fuel mixture. The best indication that this condition exists
is an increase in odors or difficulty getting your heater to
ignite. This heater should never be operated without the
filters in place. If required, clean filters as described under
"500 Hours" and "Annual Schedules".
500 HOUR SCHEDULE
1. AIR INTAKE FILTER. Remove and wash the filter element with
a mild detergent, dry thoroughly and replace. Do not oil the
filter element. If your heater is used where there is
considerable dust or dirt, clean as often as necessary
(approximately every 50 hrs.).
2. REMOVE DUST. Clean heater twice a season (more often
under dusty conditions). Remove accumulated dust from the
transformer, burner, motor and fan blades with compressed
air. Wipe area clean with a clean dry cloth. Inspect area to
insure all foreign materials are removed, especially around
the burner and combustion area.
3. CAD CELL. Clean the glass portion of the cad cell with a soft
dry cloth.
4. NOZZLE. Accumulation of dirt from fuel and carbon from the
compressor vanes will eventually fill up the passages in the
nozzle, resulting in reduction of fuel and air flow. Pressure
will gradually increase giving improper fuel-air mixture and
excess odor and smoke. If this occurs, replace the fuel nozzle.
5. FUEL TANK. Clean twice a season (during frequently used
periods, clean twice a month). Drain and flush the fuel tank
with clean fuel oil.
ANNUAL SCHEDULE
1. AIR OUTPUT FILTER. Remove the air output filter and tap the
contaminated side gently on a solid object to remove
contaminates. Compressed air or liquids should not be used
to clean this filter. Reinstall cleaned filter in filter body in the
same position as it was when removed. If the filter appears
extremely dirty, replace it with a new filter of the same type.
When replacing the filter cover, be sure the gasket is firmly in
place and the screws in the filter cover are tight to prevent air
leaks.
2. FUEL FILTER. Remove the fuel filter from fuel line and direct
compressed air through the filter in the opposite direction of
fuel flow. Safety glasses should be worn when using
compressed air.
3. AIR AND FUEL LINES. If the air or fuel lines are removed
during cleaning, be sure all connections are tight before
operating unit.
4. AIR PRESSURE SETTING. The air pressure has been properly
set at the factory. If the air pressure is out of adjustment, it
will most likely be caused by dirty air filters, a partially
plugged nozzle, an air leak in the system or improperly set
pressure. If adjustment becomes necessary, first determine
the proper pressure setting for your heater which is printed
on the serial label located on the fuel tank. Remove the plug
from the air filter cover and attach an accurate pressure
gauge calibrated to a maximum reading of 15 PSI. Start the
heater and note the pressure reading. If the pressure is low,
slowly turn the pressure adjusting screw in (Clockwise) until
the correct pressure is obtained. If the air pressure is high,
turn the adjusting screw out (counterclockwise) until the
pressure is correct. When correct pressure is reached, unplug
the heater, remove the gauge and replace the plug.
STORAGE
Store the heater in a dry location free from fumes or dust.
At the end of each heating season, clean the heater as described
in the MAINTENANCE section. Drain and flush the fuel tank with
clean fuel. The manufacturer recommends completely filling the
tank with fuel for extended storage to minimize condensation
inside the tank.
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 yellow.
* 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. Heater performance is effected by air pressure setting. If
there is any uncertainty about the air pressure 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-warranty products will be repaired with a charge for parts
and labor.
Enerco Group, Inc. | Kerosene Forced Air Heater Operating Instructions and Owner’s Manual
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