Harman Stove Company Super Magnum Coal Stoker Stove Circuit Board, Status Light Error Messages

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Super-Magnum Coal Stoker Stove

2. Circuit Board

As stated previously, the circuit board is a microprocessor, which means it has the ability to "think" and adjust itself based on both reported temperatures and demand temperature. The circuit board also has the ability to self-diagnose when things are not happening as they should be.

Power Light

Indicates power to the control.

Status Light

Will be lit in either stove or room temp mode when pointer is not within off position band except after normal shut down. Blinks to indicate errors listed below.

Indicates power to the distribution blower.

Indicates power to the combustion blower

Indicates power to the feed motor.

Temperature Dial;

Allows you to adjust the room temperature in Room Temp Mode using the outer scale marked in degrees Fahrenheit. It also allows you to adjust the stove temperature while in Stove Temp Mode using the inner scale marked from 1 to 7.

Dealer Diagnostic Port

For dealer maintenance only. Requires special DDM monitor supplied to Harman Dealers exclusively.

Feed adjuster

Sets the maximum feed rate

Test

Runs all motors at full speed for one minute to check operation. After two minutes the stove will go to minimum burn and the blowers will alternate from high to low every minute to remind you that you are still in "Test Mode".

Distribution Blower speed adjustment range.

L = low H = high

Variable speed anywhere between L and H; although as the stove temp. goes up, so does the low end of the scale.

Mode Selector

Allows you to choose between Room Temp Mode, Stove Temp Mode, or OFF. Also allows you to vary the distribution blower speed by turning the knob to the high or low side of each mode.

Status Light Error Messages

3-Blinks:Indicates that the ESP has gone out of range too many times. Could be an indicator of build up of ash, etc. in the flue pipe or heat exchange. Perform a Manual Reset.

4-Blinks:Indicates that the room sensor circuit is not complete. May mean a poor connection or short in the sensor wire. (Will only occur in "Room Temp" mode.)

Manual Reset: Turn the mode selector to "OFF", and disconnect power for a second. Restore power and return to original setting.

Circuit Board Dipswitches: On the face of the circuit board, there is a block of 8 switches. These "ON-OFF" switches are used to set the times and temperatures for the different models of stove. For this model, switches numbered 5, 7 and 8 should be on, with the rest of them off. Never adjust these switches yourself, as serious issues could develop. Also know that if there is a need to

replace an ESP probe, a switch change may also be needed. It is strongly recommended to have a trained service representative make any repairs to the appliance.

20 Do Not Burn Wet Coal!

3-90-02702R4_08/12

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Contents Installation and Operation Super-Magnum Coal Stoker StoveWhen This Room Heater Is Not Properly Installed, a House Fire May ResultInstallation Restrictions InstallationTable of Contents Mobile Home Approved This appliance is also approved for installation in a shop1Listing and Code Approvals 2Special Warnings and Notes Wet Coal Prevent Rust & CorrosionRoom Sensor Location 3Getting StartedAppliance Location Component Locations Pre- Use Check List Fire Risk4Dimensions & Clearances Parallel CornerFloor Protection RequirementsChimney Connectors 5Chimneys and VentingDraft Wall Pass-thrusChimney 3-foot, 2-foot, 10 foot ruleInstalling to a Prefabricated Chimney Existing Masonry ChimneysVenting to a Masonry Chimney Venting to a Masonry Fireplace ChimneyDraft Test Procedure Mobile Home Installation 6Mobile Home7Appliance Set-Up Outside Air AttachmentLeveling the Appliance Optional Heat Transfer KitAir Filter Optional Decorative Tile KitRoom Sensor Installation Optional Door Trim KitFuel Specifications ESP Exhaust Sensing ProbeStatus Light Error Messages Circuit BoardFeed Rate Adjustment Mode SelectionTemperature Dial Blower Speed AdjustmentStarting Your First Fire Fire CharacteristicsBefore Your First Fire Troubleshooting Symptom Possible Cause Corrective Action10Service & Maintenance Shut-down ProcedureQuick Reference Maintenance Chart Soot Formation and Need For RemovalGeneral Maintenance Procedures Door Glass Hopper Air Filter Frequency Monthly By UserFirebox Chimney Connector Motors and ComponentsChimney Feed MotorFines Scraper- in feeder Distribution BlowerESP- Exhaust Sensing Probe 11Reference Materials Supermagnum Coal Stoker #Service Parts 90-02700-1 Part number list on followingStocked at Depot 20 x 1/2 Alloy Steel Black Oxide Button Head Cap Screw At Depot Stocked#44 Motor Mount Assembly Limited Lifetime Warranty Hearth & Home Technologies IncWarranty Conditions This warranty is void ifService & Maintenance Log 90-02702R408/12 Do Not Burn Wet Coal Signature of Boxer Proudly Printed On 100% Recycled Paper

Super Magnum Coal Stoker Stove specifications

The Harman Stove Company Super Magnum Coal Stoker Stove is a remarkable heating solution that combines efficiency, reliability, and advanced technology to provide optimal warmth for your home. This stove is specifically designed to burn anthracite coal, a high-quality fuel that offers many advantages in heating.

One of the main features of the Super Magnum is its impressive heat output. It is capable of producing an astounding 140,000 BTUs per hour, making it suitable for larger spaces and even whole-home heating. This powerful output ensures that your environment stays warm and comfortable, even on the coldest winter nights.

The construction of the Super Magnum is another highlight. Built from high-quality steel, it is designed to withstand the rigors of continuous use. The stove features a large ash pan, which simplifies the maintenance process. With its easy-open access, homeowners can replace the ash quickly, ensuring that the appliance operates smoothly and efficiently.

In addition to its durable build, the Harman Super Magnum utilizes cutting-edge technologies to enhance performance. One of these technologies is the TWICE® System, which manages the internal combustion process to maximize heat output while minimizing emissions. This advanced system helps in maintaining a clean burn, making it an environmentally friendly option compared to traditional wood-burning stoves.

The stove also features a unique stoker system that automatically feeds coal into the burning chamber. This automated process not only ensures consistent heating but also reduces the need for constant monitoring. Users can set the desired temperature, and the stoker will adjust the fuel supply accordingly, allowing for a hassle-free heating experience.

Additionally, the Super Magnum is equipped with an integrated blower system that helps distribute warmth evenly throughout the space. The adjustable blower allows for customization based on the space's needs, ensuring that every corner of your home is comfortably heated.

Overall, the Harman Stove Company Super Magnum Coal Stoker Stove stands out as a powerful and technologically advanced heating solution. With its robust construction, impressive BTU output, automatic fuel feeding system, and advanced combustion management, it is an excellent option for those looking to efficiently heat their homes using coal. The Super Magnum not only provides comfort but also peace of mind, knowing that you have a reliable heating source ready to take on the cold season.
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