MASTER MH-80-OFR BTU Radiant Kerosene Heater Instruction Manual

June 5, 2024
MASTER

MASTER MH-80-OFR BTU Radiant Kerosene Heater

MASTER MH-80-OFR BTU Radiant Kerosene Heater

Locating Your Serial Number:

Your serial number can be found on a blue label on the left side cover. It will begin with the letter “S” followed by 9 digits. For Example S160901126. Have your Serial Number ready before calling customer service at 800-641-6996

DANGER

THE HEATER. Be sure to comply with the instructions and warnings provided with this heater. Failure to comply can result in fire or explosion that can cause property loss, bodily injury, or loss of life. Only persons who can follow and understand these instructions should operate or service this heater. If you need heater info; such as an operating manual, labels, etcetera, contact Pinnacle Climate Technologies at 800-641-6996.

SAFETY INFORMATION

WARNING

  • Keep combustibles such as; building materials, paper or cardboard a safe distance away from the heater as recommended by these instructions.
  • Never use the heater in spaces that contain products such as; gasoline, solvents, paint thinners, dust particles, volatile or airborne combustibles or any unknown chemicals. 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 “Ventilation” on page 7. Bulk fuel storage should be a minimum of 25 feet from heater.
  • Failure to comply with the precautions and instructions provided with this heater can result in death, serious bodily injury, property loss or damage from the hazards of fire, soot production, explosions, burns, asphyxiation or carbon monoxide poisoning. Only persons who can read and understand these instructions should use or service this heater.
  • DO NOT START THE HEATER WHEN EXCESS OIL HAS ACCUMULATED
  • DO NOT START THE HEATER WHEN THE CHAMBER IS HOT.
  • This product can expose you to chemicals, including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
  • Massachusetts state law prohibits the use of this heater in any building which is used in whole or in part for human habitation. Use of this heating device in Massachusetts requires local fire department permit (M.G.L.C. 148, Section 10A).
  • The New York City Fire Code prohibits the storage, handling and use of kerosene fueled heaters for space heating. Any person violating that provision may be punished by a fine up to $10,000 and a term of imprisonment of up to 6 months.
  • The products described in this manual are kerosene direct-fired, forced air heaters. Kerosene forced air heaters are primarily intended for use for temporary heating of buildings under construction, alteration or repair. Direct-fired means that all of the combustion products of the heater enter the heated space. This appliance is rated at 98% combustion efficiency, but does produce small amounts of carbon monoxide.
  • ALWAYS use only the electrical power (voltage and frequency) specified on the model plate of the heater.
  • ALWAYS use only three-prong, grounded outlet and extension cord.
  • ALWAYS use only 14 AWG or better extension cord.
  • ALWAYS unplug the heater when not in use.
  • ALWAYS install the heater so that it is not directly exposed to water spray, rain, dripping water, or wind.
  • NEVER use fuels such as gasoline, benzine, paint thinners or other oil compounds in this heater.
  • NEVER refill the heater’s fuel tank while the heater is operating or still hot. This heater is EXTREMELY
  • HOT while in operation.
  • NEVER block air outlet (front).
  • NEVER use duct work in front of heater.
  • NEVER move or handle heater while still hot.
  • NEVER transport heater with fuel in tank.
  • NEVER use with an external fuel tank.
  • Keep all combustible materials away from this heater.
  • ALWAYS locate heater on a stable and level surface.
  • If your heater is equipped with a thermostat, once it is plugged in, it can start at anytime in accordance with the thermostat setting.

SPECIFICATIONS

Model # 80-OFR 125-OFR-A
Rating: Btu/Hr 80,000 125,000
Fuel Consumption: Gal./Hr / L/Hr 0.63 / 2.38 0.85 / 3.22
Fuel Tank Capacity: Gal. / L 4 / 15 14 / 53
Max Operating Hours 6 16
Volts: AC/Hz 120V / 60Hz 120V / 60Hz
Amps 3.15 3.15
Heating Area: ft.2 2000 3125

FEATURES

80-OFRMASTER MH-80-OFR BTU Radiant Kerosene Heater
1
125-OFR-AMASTER MH-80-OFR BTU Radiant Kerosene Heater
2

WHAT’S IN THE BOX 80-OFR

MASTER MH-80-OFR BTU Radiant Kerosene Heater
3

ASSEMBLY

Remove existing screws from shell ring on either side of heater
Line up holes on heat shield with holes in shell ring. Attach with screws removed in step 1MASTER MH-80-OFR BTU Radiant Kerosene Heater
4

WHAT’S IN THE BOX 125-OFR-A

MASTER MH-80-OFR BTU Radiant Kerosene Heater
5

Slide axle through Wheel Frame and attach wheels, washers and nuts
Place main structure on wheel frame and fasten with long screws provided
Attach safety guard to front of heater with screws provided included.MASTER
MH-80-OFR BTU Radiant Kerosene Heater 6
Attach top safety guard using the two outer-most extra screws on the top of the radiant cone

OPERATION

Fueling The Heater: Kerosene
For optimal performance of this heater, it is strongly suggested that Kerosene be used. Kerosene has been refined to virtually eliminate contaminants, such as sulfur, which can cause a rotten egg odor during the operation of the heater. Using diesel fuel can cause excess soot production. Do not use Bio- Diesel as this fuel will damage your heater’s seals and filter.
CSA certified for use with K-1 kerosene, no. 1 & no. 2 diesel, JP8/Jet A Fuel, no. 1 and no. 2 fuel oil.

WARNING

  • NEVER use fuel such as, benzene, alcohol, white gas, camp stove fuel, paint thinners, or other oil compounds in this heater. THESE ARE VOLATILE FUELS THAT CAN
  • CAUSE A FIRE OR EXPLOSION.
  •  NEVER store Kerosene in the living space.
  • Kerosene should be stored in a well-ventilated area outside the living area.
  • NEVER store Kerosene in direct sunlight or near a source of heat.
  • NEVER use Kerosene that has been stored from one season to the next. Kerosene deteriorates over time. OLD Kerosene WILL
  • NOT BURN PROPERLY IN THIS HEATER

Ventilation:

  • Risk of indoor air pollution and Carbon Monoxide Poisoning. Use heater only in well-ventilated areas.
  • Refer to Safety Information on pages 2-3 for information about Carbon Monoxide Poisoning.
  • ALWAYS provide a fresh air opening in the heated space of at least 2,800 square centimeters (3 sq. ft) for each 100,00 Btu/Hr. (29 kW) of heater output. Provide a larger opening if more heaters are being used

Starting the Heater (Ignition):

  • Fill the tank with Kerosene or other approved fuel until needle on fuel gauge points to “F”.
  •  Replace fuel cap and tighten firmly.
  •  Connect the heater to a three prong (grounded) power source. You must use a three prong (grounded) extension cord that is at least 1.8 meters long and is a minimum of 14 AWG rating.

Minimum Ventilation Opening Needed

80-OFR| 125-OFR-A
2.4 ft.2| 3.75 ft.2
2230 cm2| 3484 cm2

NOTE : The electrical components of these heaters are protected by a fuse mounted in the PC board. If the heater fails to ignite, check this fuse first and replace if necessary. Also check the power source to be sure the proper voltage is being provided to the heater

  •  Complete steps 1-3 above.
  •  Push the power switch to the “ON” position. The power indicator lamp will light and heater will ignite

Stopping the Heater (Cool Down):

Turn the power switch to the “OFF” position. Combustion will stop and the Cooling Cycle will begin.

  • 80-OFR: approx. 5 mins
  • 125-OFR-A: approx 3 mins
  • When the Cooling Cycle is complete the fan will stop running and it will be safe to unplug the heater

Restarting the Heater:

  •  Wait ten seconds after Cooling Cycle has been completed.
  •  Follow all start-up procedures above

Electrical Outlet (80-OFR Only):

  • Never plug an appliance with more than a 5 amp rating into this outlet (see Figure 11).
  • Always keep outlet covered when not in use

MAINTENANCE

Long Term Storage (80-OFR):

  1.  Unscrew the fuel cap.
  2.  Using an approved siphon, remove the Kerosene or diesel.
  3.  Using a small amount of Kerosene or diesel, rinse and swirl the fuel inside the fuel tank
  4.  Empty the tank completely

Long Term Storage (125-OFR-A):

  •  Drain fuel through the drain bolt in the bottom of the fuel tank.
  •  To remove the drain bolt, unscrew it counterclockwise
  •  Using a small amount of kerosene, rinse and swirl the kerosene inside of the fuel tank, empty the tank fully.
  •  To replace the drain bolt, insert the drain head fully into the drain hole and screw clockwise

Service:

DO NOT TAMPER WITH THE UNIT. HAVE AN EXPERIENCED SERVICEMAN MAKE ANY NECESSARY ADJUSTMENTS OR REPAIRS

FUEL / FUEL TANK:
Flush tank every 200 hours of operation or as needed. DO NOT flush with water, use fresh Kerosene only.
SPARK PLUG:
Clean and re-gap every 600 hours of operation or replace as needed. After removing the Spark Plug, clean the terminals with a wire brush. Re-gap the terminals to 0.140” (3.5 mm)

FAN BLADES:
The fan blades should be cleaned at least once per heating season, depending on conditions. Remove all accumulated dust and dirt with a burst of condensed air

PRESSURE ADJUSTMENTS:
Proper pressure is dependent on the fuel type the unit will be running. When smoking or non-ignition occurs, remove the lower panel. Locate the Phillips screw with a nut on the fuel pump to the left of the fuel line. There is a small “P” next to the pressure screw. The ideal pressure is 112 psi (7.9 kg/cm2). If you are experiencing smoking or fuel dripping from the unit, turn the screw clockwise 1/8 to 1/4 of a turn to increase the fuel pressure until the unit is operating properly. If you are experiencing extended flames from the front of the unit, turn the screw 1/8 to 1/4 of a turn counterclockwise to reduce the air pressure until the unit is operating properly.

NOZZLES:
Nozzles should be cleaned or replaced at least once per heating season. Contaminated fuel could make this necessary immediately. To clean dirt from nozzle, blow compressed air through nozzle front. It may be necessary to soak nozzle in clean Kerosene or diesel to help loosen any particles (see Figure 14a and 14b). Apply Loctite 567 thread sealant (high temperature) on the nozzle threads before installing.

80-OFR NozzleMASTER MH-80-OFR BTU Radiant Kerosene Heater
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125-OFR-A Nozzle

PHOTOCELL:
The photocell should be cleaned at least once per heating season or more depending on conditions. Use a cotton swab and water or alcohol to clean the lens of the photocell. Be certain to reinstall the photocell in proper position as shown belowMASTER MH-80-OFR BTU Radiant Kerosene Heater
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FILTERS:
The fuel filter and oil filter should be cleaned at least twice per heating season by rinsing it in clean Kerosene or diesel. Contaminated or old  could make cleaning necessary immediately.

WIRING DIAGRAMS 80-OFRMASTER MH-80-OFR BTU Radiant Kerosene Heater
16 **WIRING DIAGRAMS 125-OFR-A**

MASTER MH-80-OFR BTU Radiant Kerosene Heater 17


TROUBLESHOOTING GUIDE

Problem Possible Cause Solution



Heater fires, but shuts down after a short period of time.

| 1.Dirty Fuel Filter.

2. Nozzle Dirty.

3. Photocell Dirty.

4. Photocell not installed properly.

5. Photocell Defective .

6. Improper electrical connection between Circuit Board and Photocell.

7. Cooling Fan is obstructed

8.Improper pressure.

| 1.       Clean/replace Fuel Filter.

2.          Clean/replace Nozzle

3.          Clean/replace Photocell .

4.          Adjust Photocell position.

5.          Replace Photocell.

6.          Check wiring connections (See Wiring Diagrams, Page 11).

7.         Check to be sure cooling fan is not obstructed.

8.          Adjust pump pressure.





Heater will not operate, or motor runs for short time.

| 1.No Kerosene/ diesel in fuel tank.

2.Corroded Spark Plug or incorrect plug gap.

3.  Dirty Fuel Filter.

4.Dirty Nozzle.

5. Moisture in Fuel/Fuel Tank.

6. Improper electrical connection between Transformer and Circuit Board.

7.Transformer Wires not connected to Spark Plug.

8. Defective Transformer.

| 1. Fill tank with fresh Kerosene/ diesel.

2. Clean/replace Spark Plug.

3. Clean/replace Fuel Filter.

4. Clean/replace Nozzle.

5. Rinse out fuel tank with clean fresh Kerosene/ diesel.

6. Inspect all electrical connections. (See Wiring Diagrams, Page 11).

7. Re-attach Transformer wires to Spark Plug.

8. Replace Transformer.


Fan does not operate when heater is plugged in and Operating Switch is in the “ON” position.

| 1. Broken electrical connection between Circuit Board and motor.

2. Not enough amps available to power heater.

| 1. Inspect all electrical connections on Wiring Diagrams (Page 11).

2. Use a new extension cord or try another electrical socket.


Heater makes grinding noise.

| 1. Air in fuel pump.| 1. Sound will stop after 3 seconds. If grinding sound continues, add fuel to tank.




Heater does not turn on and the lamp is not lit.

| 1.Temperature limit sensor has over- heated.

2. No electrical power.


3. Fuse break down.

4. Improper electrical connection between Temperature Limit Sensor and Circuit Board.

| 1.Push Operating Switch to “OFF” and allow heater to cool for 5 minutes. Push Operating Switch back to “ON”.

2. Check power cord and extension cord to insure of proper connection. Test power supply.

3. Check/replace Fuse.

4. Inspect all electrical connections. (See Wiring Diagrams, Page 11).


Poor combustion and / or soot production.

| 1. Pump Pressure.

2. Poor fuel quality.

| 1. Be sure pump pressure is adjusted correctly.

2. Be sure Kerosene/ diesel is not old or contaminated.

EXPLODED VIEW 80-OFR
MASTER MH-80-OFR BTU Radiant Kerosene Heater 19


PARTS LIST 80-OFR

Item # Description Part Number
1 Fuel Filter 75-023-0285
2 Fuel Line 75-024-0740
3 Fuel Gauge 75-022-0210
4 Fuel Cap 70-006-0140
5 Cooling Fan Housing / Cooling Fan Housing Panel 75-011-0685 / 75-011-0690
6 Electric Pump 75-027-0650
7 Ignitor 70-037-0350
8 Main PCB Assembly 75-025-0490
9 Tip-Over Sensor 75-051-0200
10 Cooling Motor Assembly 75-047-0250
11 Cooling Fan 75-047-0200
12 Handle 75-001-0060
13 Temperature Limit Switch 75-040-0100
14 Heat Plate 75-012-0600
15 Shell Ring 75-011-0650
16 Safety Guard 75-012-0310
17 Burner Body 75-036-0180
18 Spark Plug 75-075-0200
19 Burner Blade 75-036-0120
20 Nozzle 75-036-0460
21 Nipple 75-040-0610
22 Diffusion Cap 42-300-0010
23 Blower Motor Assembly 75-045-0200
24 Photocell 72-038-0200
25 Return Pipe 75-055-0100
26 Return Hose 75-055-0205
27 Fuel Pressure Gauge 70-028-0200

EXPLODED VIEW 125-OFR-AMASTER MH-80-OFR BTU Radiant Kerosene Heater
20
PARTS LIST 125-OFR-A

Item # Description 125-OFR-A
1 Fuel Gauge Assembly 70-007-0215
2 Fuel Cap 70-006-0130
3 Wheel 70-041-1400
4 Axle 72-041-0200
5 Drain Bolt 72-002-0220
6 Height Adjustment Knob 72-042-0500
7 Return Fuel Line 72-023-0290
8 Intake Fuel Line 72-023-0280
9 Fuel Filter Assembly 72-020-0200
10 Fuel Pump 72-027-0100
11 Main PCB and Fuse 72-025-0450
12 Tip Over Sensor 75-051-0200
13 Power Switch 72-012-0120
14 Back Cover 72-013-0110
15 Panel sub-PCB 72-014-0100
16 Blower Motor Assembly 72-045-0100
17 Photocell 72-038-0200
18 Spark Plug 75-075-0200
19 Burner Body 72-035-0210
20 Nozzle 72-036-0100
21 Diffusion Cap 42-300-0010
22 Ignitor 70-037-0350
23 Temperature Overheat Sensor 72-040-0100
24 Safety Guard 72-012-0200
25 Front Frame 38-110-0010, 38-110-0020
26 Top Safety Guard 72-012-0250
27 Radiant Visors 72-012-0220
28 Radiant Cone Gaskets 72-035-0630
29 Burner Housing Assembly 72-035-0615![MASTER MH-80-OFR BTU Radiant

Kerosene Heater 20](https://manuals.plus/wp-content/uploads/2022/04/MASTER- MH-80-OFR-BTU-Radiant-Kerosene-Heater-20.png)

LIMITED WARRANTY

Pinnacle Climate Technnologies, Inc. warrants this heater to the original retail purchaser only, to be free from defects in material and workmanship for a period of one (1) year from the date of initial purchase. This product must be properly installed, maintained and operated in accordance with the instructions provided. Pinnacle Climate Technnologies, Inc. requires reasonable proof of your date of purchase from an authorized retailer or distributor. Therefore, you should keep your sales slip, invoice or cancelled check from the original purchase. This Limited Warranty shall be limited to the repair or replacement of parts, which prove defective under normal use and service within the warranty period, and which Pinnacle Climate Technnologies, Inc. shall determine at its reasonable discretion. This warranty does not apply to products purchased for rental use. This Limited Warranty does not cover any failures or operating difficulties due to normal wear and tear, accident, abuse, misuse, alteration, misapplication, improper installation or improper maintenance and service by you or any third party. Failure to perform normal and routine maintenance on the heater, shipping damage, damage related to insects, birds or animals of any kind, and damage due to weather conditions are also not covered. In addition, the Limited Warranty does not cover damage to the finish, such as scratches, dents, discoloration, rust or other weather damage, after purchase. All transportation costs for the return of damaged product or parts will be the responsibility of the purchaser. Upon receipt of damaged item, Pinnacle Climate Technnologies, Inc. will examine the item and determine if defective. Pinnacle Climate Technnologies, Inc. will repair or replac and return the item, freight pre-paid. If Pinnacle Climate Technnologies, Inc. finds the item to be in normal operating condition, or not defective the item will be returned freight collect. This Limited Warranty is in lieu of all other express warranties. Pinnacle Climate Technnologies, Inc. disclaims all warranties for products that are purchased from sellers other than authorized dealers or distributors. AFTER THE PERIOD OF THE ONE (1) YEAR EXPRESS WARRANTY EXPIRES, Pinnacle Climate Technnologies, Inc. DISCLAIMS ANY AND ALL IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR APPLICATION. FURTHER, Pinnacle Climate Technnologies, Inc. SHALL HAVE NO LIABILITY WHATSOEVER TO PURCHASER OR ANY THIRD PARTY FOR ANY SPECIAL, INDIRECT, PUNITIVE INCIDENTAL, OR CONSEQUENTIAL DAMAGES. Pinnacle Climate Technnologies, Inc. assumes no responsibility for any defects caused by third parties. This Limited Warranty gives the purchaser specific legal rights; a purchaser may have other rights depending upon where he or she lives. Some states do not allow the exclusion or limitation of special, incidental or consequential damages, or limitations on how long a warranty lasts, so the above exclusion and limitations may not apply to you. Pinnacle Climate Technnologies, Inc. does not authorize any person or company to assume for it any other obligation or liability in connection with the sale, installation, use, removal, return or replacement of its equipment, and no such representations are binding on Pinnacle Climate Technnologies, Inc. Always be sure to specify the model number and serial number when making any claim with Pinnacle Climate Technnologies, Inc. For your convenience, use the space provided below to list this information.

References

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