Enerco Heatstar HS50K, Heatstar HS75KT, Heatstar HS175KT, Heatstar HS125KT, Heatstar HS210KT Owner's Manual
®
OPERATING INSTRUCTIONS
AND OWNER’S MANUAL
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.
For model serial numbers,
see page E10.
Model #
HS50K, HS75KT,
HS125KT, HS175KT,
HS210KT
LANGUAGES
ENGLISH
Pages E1 — E10
KEROSENE
FRENCH
FORCED-AIR 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.
— 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.
Pages F1 — F10
ENERCO TECHNICAL PRODUCTS, INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 216-916-3000
UL733, CSA/CAN3-B 140.9.3
04/10 70204 Rev. A
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:
CARBON MONOXIDE CAN KILL YOU
USING A PORTABLE GAS CAMPING HEATER INSIDE A
TENT, RV, CAMPER, VEHICLE, SHELTER OR OTHER ENCLOSED AREAS CAN PRODUCE DEADLY CARBON MONOXIDE
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 US-
ING 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.
HS50K & HS75KT 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 ...............................................................................E-2
HEATER SPECIFICATIONS ...........................................................E-3
OPERATING PRECAUTIONS ........................................................E-3
SAFETY PRECAUTIONS ..............................................................E-3
OPERATING INSTRUCTIONS ......................................................E-3
MAINTENANCE, STORAGE AND SERVICE .................................E-4
TROUBLE SHOOTING ................................................................E-6
WIRING DIAGRAM ....................................................................E-7
PARTS LIST ................................................................................E-8
EXPLODED VIEW .......................................................................E-9
WARRANTY ............................................................................E-10
INSTRUCTIONS FOR ORDERING PARTS ....................................E-10
Kerosene Forced Air Heater Operating Instructions and Owner’s Manual
E-2
SPECIFICATIONS
CAUTION: CSA certified for use with only No. 1-K kerosene fuel.
Model HS50K HS75KT HS125KT HS175KT HS210KT
Burn Rate: 50,000 Btu/hr (14.7 kW) 75,000 Btu/hr (22 kW) 125,000 Btu/hr (37 kW) 175,000 Btu/hr (51 kW) 210,000 Btu/hr (61.5 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) 1.6 gal/hr (6.0 L/hr)
Electrical Input: 115V, 60Hz, 3.5a 115V, 60Hz, 4a 115V, 60Hz, 5.5a 115V, 60Hz, 5.5a 115V, 60Hz, 5.5a
Line Protection: 10 amps 10 amps 20 amps 20 amps 20 amps
Min. Operating Voltage: 110V 110V 110V 110V 110V
Pressure Setting: 3.5 psig (24 kPa) 4.2 psig (29 kPa) 5.5 psig (38 kPa) 5.8 psig (40 kPa) 8.5 psig (58.6 kPa)
Max. Outlet Temperature: 1300
Fuel Tank Capacity: 4 gallons (15.1 L) 6 gallons (22.7 L) 14 gallons (53 L) 14 gallons (53 L) 14 gallons (53 L)
Ignition: Direct Spark, Continuous 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 Igniter 13 kV, 10ma
Primary Safety Control: Solid State Control Solid State Control Solid State Control Solid State Control Solid State Control
Certication:
o
F (704oC) 1300oF (704oC) 1300oF (704oC) 1300oF (704oC) 1300oF (704oC)
OPERATING PRECAUTIONS
This is a kerosene, direct-red, 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.
SAFETY PRECAUTIONS
1. Recommended for use with No.1-K kerosene fuel. Factory
tested for use with No.2-K kerosene, No.1 or No.2 Diesel,
No.1 or No.2 fuel oil or JP8 Jet A fuel and these fuels may
be used as well. Never use gasoline, oil drained from crank
cases, naphtha, paint thinners, alcohol or any other highly
flammable fuels.
2. Check the heater thoroughly for damage. DO NOT operate a
damaged heater.
3. DO NOT modify the heater or operate a heater which has
been modified from its original condition.
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 oor 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 combustible 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. (HS50K & HS75KT –
See wood floor warning).
11. Do not use with duct work. Do not restrict inlet or exit.
12. Use only with electrical power specied. 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 in operation.
15. Use only in accordance with local, state (provincial) or
national requirements, ordinances and codes.
OPERATING INSTRUCTIONS
UNPACKING
1. Remove heater from carton.
2. Remove all protective material which may have been applied
to the heater for shipment.
3. Check the heater for possible shipping damage. If any
damage is found immediately contact the manufacturer at
800-251-0001.
ASSEMBLY (For 125,000, 175,000 and 210,000 BTU/hr models
only, see gure 1, page 8.)
Wheels 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” nut driver, 3/8” open or
adjustable wrench and standard pliers.
1. Assemble the wheels onto the wheel support frame as
follows:
Kerosene Forced Air Heater Operating Instructions and Owner’s Manual
E-3
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 the spacer onto the axle next to the wheel.
d. Slide the partially assembled axle through the wheel
support frame.
e. Slide the spacer 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 opposite 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. (4) & No. (5)
screws and nuts.
PREPARING FOR OPERATION
1. Check the heater for possible shipping damage. If any is
found, immediately contact the manufacturer at
800-251-0001.
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 50 & 75 are 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.
HEATER START UP
1. HS50K: Plug the heater into a grounded 115V, 60 Hz, 1 Ø
outlet.
HS75KT, HS125KT, HS175KT & HS210KT: 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 pushing toggle
switch to “On” position (light signies switch is in “ON”
position). Adjust thermostat to desired setting. Heater will
cycle on/off as heat is required.
EXTENSION CORD REQUIREMENTS: Up to 100’ (30.5m) use
16 awg. conductor. 101’ - 200’ (30.5 - 61.0m) use 14 awg.
conductor.
For all models:
• In cold weather (below 10° F), starting may be improved by
holding a finger over the vent hole of the pump adjustment
screw cap until the heater starts.
• This unit is equipped with an interrupt circuit. The reset is
integrated into the “On/Off” switch. If the unit does not
start, toggle the switch to “Off”, wait 5 min. and toggle
the switch to “On”.
HEATER SHUT DOWN
1. HS50K: Unplug heater from power source.
HS75KT, HS125KT, HS175KT & HS210KT: Push “On/Off”
switch to “Off” position. For extended shutdown, unplug hea-
ter from power source.
RESTART AFTER SAFETY SHUTDOWN
(HS50K, HS75KT, HS125KT, HS175KT & HS210KT)
See page 6.
HS50K - Unplug unit. Wait 5 minutes. Plug back in.
HS75KT, HS125KT, HS175KT & HS210KT - Toggle switch to “OFF”
position, wait 5 minutes. Restart.
MAINTENANCE AND STORAGE
WARNING. To prevent personal injury, unplug the heater from the
wall outlet before servicing.
For maximum efciency and trouble-free service, make the
following periodic maintenance, cleaning and inspections.
ADJUSTING PUMP PRESSURE
Due to varying fuel viscosities and normal component wear the
pump pressure on this heater may need to be adjusted.
ADJUSTMENT PROCEDURE:
Fill fuel tank.1.
Start heater.2.
Locate the fuel pressure adjustment screw (ref. #26) in the 3.
exploded parts drawing. The pressure adjustment screw
is located at the rear of the heater, in the air filter housing
cover (approx.2” from the left side and 1” from the top).
Using a flat bladed screw driver, turn the pump pressure 4.
adjustment screw clockwise to increase pump pressure and/
or counter-clockwise to decrease pump pressure. Base pump
pressures can be found in the specifications chart on page 3
of the “Operating Instructions and Owners’ Manual”.
For best results, the nose cone in the combustion chamber 5.
should be cherry red with no dark spots and the flame
should not extend beyond the nose cone.
IMPROPER PRESSURE ADJUSTMENT
Problem: Heater does not have a strong consistent flame.
Heater smokes and spits raw fuel.
Nose cone does not get cherry red.
Adjustment: Pump pressure is too low.
Turn adjustment screw clockwise to increase pump
pressure.
Problem: Flame extends beyond the end of the heater.
Adjustment: Pump pressure is too high.
Turn adjustment screw counter clockwise to
decrease pump pressure.
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
Kerosene Forced Air Heater Operating Instructions and Owner’s Manual
E-4
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 lters 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 ow. 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.
When the heater is working normally:
* 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.
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 lter 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.
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.
Kerosene Forced Air Heater Operating Instructions and Owner’s Manual
E-5
DIAGNOSTIC SAFETY SHUTDOWN AND TROUBLE SHOOTING
These instructions are applicable for HS50K, HS75KT, HS125KT, HS175KT, HS210KT
SYMPTOM TROUBLE SHOOTING
High limit switch Open Circuit 1) Make sure heater is cooled off, toggle switch to “OFF” position, wait 5
minutes and retry.
Sparks, calling for flame, but 1) Check wiring to motor (per wiring schematic in manual).
no or slow motor operation 2) Make sure that the gauge plug is in place and not damaged.
3) Adjust pressure for proper heater operation per manual.
4) With heater disconnected from AC source, rotate fan clockwise
to verify motor is free.
5) Remove air filter housing from motor and inspect the pump rotor
for damage. If damaged, replace rotor assembly.
6) If wiring is correct, pump rotor is okay, and motor is not rotating
freely, replace motor or power-pack assembly.
7) If problem persists, replace oil flame control assembly.
8) Check for spark arching from the electrode assembly, to the
combustion cylinder.
9) Check the cad cell for continuity.
No Spark 1) Check length and gage of extension cord for proper amp. draw.
(Check requirements on page 4.)
2) Check wiring to igniter (per wiring schematic in manual).
3) Check gap between electrode probes (2.3 - 3 mm).
4) Still no spark, replace igniter assembly.
5) Replace oil flame control assembly.
Abnormal Motor Operation - 1) Motor speed too low (Motor should operate at 3450rpm) -
Motor overheats or Stops Replace motor.
2) With heater disconnected from AC source, rotate fan clockwise
to verify motor is free.
3) Remove air filter housing from motor and inspect the pump rotor
for damage. If damaged, replace rotor assembly.
4) If wiring is correct, pump rotor is okay, and motor is not rotating
freely, replace motor or power-pack assembly.
5) Replace oil flame control assembly.
Unable to Detect Flame 1) Check wiring to cad cell (per wiring schematic in manual).
2) Clean cad cell photo cell.
a) Slide cad cell out of cad cell holder.
b) Push the photo cell out of the black rubber cad cell housing
by pushing on the 2 purple wires.
c) Clean the photo cell with a soft cloth and rubbing alcohol.
d) Pull the photo cell back into the cad cell housing and
reinstall into holder.
e) Test heater.
3) If the heater still does not operate, replace cad cell.
4) Replace oil flame control assembly.
Flame Control Failure 1) Check wiring in heater (per wiring schematic in manual).
2) Replace oil ame control assembly.
Kerosene Forced Air Heater Operating Instructions and Owner’s Manual
E-6
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