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MAGNUM 7500

® 

CORN/WOOD PELLET FURNACE 

 

THIS APPLIANCE HAS BEEN TESTED AND APPROVED TO CSA B 366.1-M91-CAN/USA & UL 391-99 

 
 
 
 
 

WARNING:  THIS INSTRUCTION MANUAL MUST BE SAVED FOR FUTURE REFERENCE 

 

PLEASE READ THIS ENTIRE MANUAL BEFORE INSTALLATION AND USE OF THIS CORN/WOOD PELLET 

BURNING FURNACE.  FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PROPERTY 

DAMAGE, BODILY INJURY OR EVEN DEATH. 

REFER TO ADDITIONAL MARKINGS ON APPLIANCE FOR ADDITIONAL INSTRUCTIONS 

IMPORTANT: 

Always contact your local dealer/installer with questions before contacting the factory.  

When you call have your serial number, purchase date, who installed the unit and a list of questions. 

This appliance must be installed by a lisenced/trained factory approved installer 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

 
 
 
 

 

AMERICAN ENERGY SYSTEMS, INC. GRANTS NO WARRANTY, IMPLIED OR STATED, FOR THE 

INSTALLATION OR MAINTENANCE OF THE STOVE AND ASSUMES NO RESPONSIBILITY FOR ANY 

CONSEQUENTIAL DAMAGE(S). 

 

Disclaimer Notice:  

No guarantee is made regarding the heating capacity of this unit.  The actual area that this unit will heat depends on 

factors such as conditions of the building, heat loss, type of construction, amount and type of insulation, type of air movement, and the 
location of the Furnace. 

  

AMERICAN ENERGY SYSTEMS, INC.  -150 Michigan Street SE  -  HUTCHINSON, MINNESOTA 55350 

Web Site: 

www.hearthdirect.com

 

Rev. date 02/01/04 

 

9

 

When installing your 

Magnum 7500 Corn/Wood Pellet Furnace

, particular attention needs to be made in 

regards to fire protection.  If the unit is not properly installed, a house fire may result.  For your safety, 
follow the installation and operation instructions provided, and if a question arises contact local building or 
fire officials about restrictions and installation requirements in your area. 

9

 

Read the operations and fuel section of this manual before plugging in your unit. 

9

 

Always unplug the unit before attempting any service work. 

9

 

Do not connect the unit to a chimney flue already serving another appliance. 

9

 

When installing the chimney pipe to the unit, it is important to remember that the unit operates on a 
negative pressure and the chimney on a positive pressure.  All chimney connections, elbows and fittings 
must be airtight.  

(proper venting practices must be followed. Consult with a venting professional)

 

9

 

Ashes must be disposed of in a metal container with a tight fitting lid. 

9

 

All minimum clearances to combustibles must be followed. 

9

 

The 

Magnum 7500 Corn/Wood Pellet Furnace

 is tested for operation with 14% or less moisture corn or 

with wood pellets with an ash content of no more than 3%.  

It is recommended that Corn with 11-12% 

moisture or wood pellets with an ash content of 1% or less be used for efficient operation of this unit. 
Corn over 12% moisture has a lower BTU value and will be hard to burn on the lower settings. 

9

 

It is important to use fuel that is clean, dry and consistent.  

Make sure that your supplier is giving you 

the same fuel each time that you purchase.  It is recommended that you purchase your entire heating season 
supply of fuel at one time so that the fuel will be the same.

 

9

 

A voltage surge protector or ground fault outlet is required for this unit.  The warranty on the 
circuit board will be voided if surge protection is not installed before operating this unit 

OWNER’S MANUAL 

Installation – Operation – Maintenance Instructions

 

Summary of Contents for MAGNUM 7500

Page 1: ...stallation and operation instructions provided and if a question arises contact local building or fire officials about restrictions and installation requirements in your area 9 Read the operations and...

Page 2: ...SIDE COMBUSTION AIR CONNECTION 16 INSTALLATION CONFIGURATIONS 17 19 DUCTING 20 22 GLASS MAINTENANCE ADJUSTMENT REMOVAL AND REPLACEMENT 23 STOVE CONTROLS 24 COMBUSTION ENHANCEMENT SYSTEM CES 25 LIGHTIN...

Page 3: ...ers have referral rewards available and I encourage you to ask your local dealer how to get involved in helping make our country energy self sufficient GOOD LUCK American Energy Systems Inc manufactur...

Page 4: ...proximately 1 1 3 pounds of Clean Burn for every hopper of corn app 5 6 handful s To mix the Clean Burn additive simply add it to the corn and mix in by hand If you have corn with low starch content y...

Page 5: ...5 GIVE CLEAN BURN A TRY YOU WILL BE PLEASANTLY SURPRISED CLEAN BURN...

Page 6: ...the air control to maintain the fire The unit is designed to adapt to different size fuels and consumption circumstances If you are experiencing different feed rates than shown or if the heat desired...

Page 7: ...s to the installation of this product not included in this manual the building codes will take precedent and must be followed Contact your local building inspector to obtain any necessary permits or i...

Page 8: ...at least 6 inches 150mm in front and 6 inches 150 mm on either side of the fuel loading and ash removal doors 9 Do not attempt internal service to the unit when it is burning and or plugged into power...

Page 9: ...URNACE THAT IS NOT EQUIPPED WITH AN AIR CIRCULATION BLOWER OR TO A CHIMNEY OR VENT SERVING A GAS FURNACE OR GAS APPLIANCE 9 THE MAGNUM 7500 CORN WOOD PELLET FURNACE IS COMPATIBLE WITH THE FOLLOWING ga...

Page 10: ...11 12 percent moisture recommended 9 Store your corn supply in a dry place and keep the bags or container sealed to prevent your corn from absorbing excess moisture Test the moisture content periodic...

Page 11: ...of the furnace 9 Mixing Corn with the Wood Pellets can be done and will provide a little less heat in the spring and fall Also if the Corn is a little wet mixing pellets in will help the fire maintai...

Page 12: ...joists is 2 14 x 24 cold air return Floor protection must be provided because of possible spillage of ashes and burning fuel There must be non combustible materials placed 6 in front of and 6 to the s...

Page 13: ...of the unit the B clearance is 1 C clearance is for a vertical vent install It is highly recommended that you have 2 feet clearance around the unit for servicing and maintenance Both the left and rig...

Page 14: ...g or have been fixed so they cannot open 9 Distance from bottom of termination and grade 1 ft 305 mm minimum This is conditional upon the plants and nature of grade surface The exhaust gases are not h...

Page 15: ...ponent Equivalent Length Equivalent Pipe Length Horizontal Straight Pipe Actual Length in ft x 1 0 Horizontal Pipe 1 x 2 1 3 ft Vertical Straight Pipe Actual Length in ft x 0 5 Vertical Pipe 0 5 x 8 4...

Page 16: ...CHIMNEYS Your new furnace is so efficient an unlined chimney could remain cold and cause a downward pressure creating poor burning incomplete combustion or back draft A L Vent venting 3 or 4 B L Vent...

Page 17: ...high winds blowing directly up the air inlet during a simultaneous power failure see diagram above 5 It is important not to terminate the inlet of the fresh air intake too close to the venting outlet...

Page 18: ...k the PL vent clean out tee or elbow onto the pipe adaptor Don t seal the entire 3 diameter pipe as you will not be able to disassemble the pipe at a later date The bead of silicone will act as a gask...

Page 19: ...is not enclosed in an insulated chase way Storm Collar 36 on a flat roof 3 clearance around vent 24 NOTE It is not recommended to install vertical venting on the outside of the wall without enclosing...

Page 20: ...20 Storm Collar Design system to accommodate the cold air return app 24 of room needed...

Page 21: ...return air would have to be provided When installed in a garage the unit must be installed so that the burners and ignition source are located not less than 18 inches above the floor and the furnace m...

Page 22: ...required for this installation and attach to the back of the filter panel Order part CF28 to convert cold air return from rectangular to 12 round Return air is very important to the furnace operating...

Page 23: ...ure that when the warm air plenum is installed that there is adequate room to open and load the hopper lid Place furnace so that maintenance and operation of the unit can be performed Hopper lid minim...

Page 24: ...ing or hitting any corners If the glass touches any of the casting when tightening it will break CLEANING THE GLASS When the fire is first started it will produce some smoke The smoke might accumulate...

Page 25: ...es shown pulled out NOTE Always push in to operate unit Ash Cleanouts located on the left and right side of the front of unit Slide out for cleaning Shown in the pulled out Position NOTE Always push b...

Page 26: ...or set the hot CES on a combustible surface After you have lit the fire and the fire is established you can place the CES back on the firepot and the fire will start quicker NOTE the fire may not be c...

Page 27: ...mately inch of fuel in the bottom of the firepot Do not let the fuel build up any higher than that or it will cause the fire to burn dirty and you will get excessive ash If the fuel level is too low b...

Page 28: ...ottom of the firepot The number 3 heat setting is best for corn and the number 4 heat setting is best for wood pellets for a high fire burn The high heat setting should only be used if the home is ove...

Page 29: ...t with your Magnum 7500 installer 9 The base of the flame should be blue in color and the top of the flame should be yellow 9 If the flame does not have enough draft fuel will build up in the firepot...

Page 30: ...STALLATION INSTRUCTIONS CREOSOTE FORMATION AND NEED FOR REMOVAL With the low operating temperatures of the Magnum 7500 furnace and if the venting is on an exterior installation creosote may form Creos...

Page 31: ...does not put your fire out If fuel moisture is high do this once a day 9 Shut down the furnace as directed in the operating instructions Allow the furnace to cool to room temperature Remove the small...

Page 32: ...heat exchanger plates be sure to re install them If they keep falling out replace them with new ones Do not operate the unit without them installed If you are having trouble contact your local servic...

Page 33: ...t is needed Disconnect the power source before performing any maintenance or electrical service work Plug the power supply cord into a surge protected and grounded 15 amp branch circuit The outlet mus...

Page 34: ...e thermostat option to achieve uniform control over your heating needs By setting the unit on a number 3 setting this is the normal setting but can be any setting from 2 high for high fire and letting...

Page 35: ...istribute cold air and the furnace will not operate efficiently Circuit Board Control AES MF3593 2 wire low voltage thermostat Power Cord Receptacle Power cord Black Green Ground Fuel Stirrer Gear mot...

Page 36: ...ntrol knob is adjusted properly Turn the manual air knob open until desired burn is achieved 9 Check gasket seal around the door If the door is loose adjust the handle latch A small adjustment can be...

Page 37: ...hopper Add fuel if necessary 9 Have your Magnum 7500 reseller diagnose the problem and replace the parts Furnace runs for 30 minutes and then shuts down Exhaust gas is not up to temperature Started o...

Page 38: ...licone sealer 9 Use an approved ash vacuum system 9 Have the home checked for negative pressure and proper installation of ductwork etc Buildup of soot on glass venting and heat exchangers Dirty fuel...

Page 39: ...ove or venting Poor exhaust vent configuration Negative pressure present in the home Combustion motor going out Use combustion enhancement system Adequately screen corn Dirty wet fuel will produce exc...

Page 40: ...blink being the lowest and 10 blinks being the highest When you turn the adjustment screw to the next setting the light will blink the number that you are on and then the light will stay on Example If...

Page 41: ...g the slide gate be careful not to damage the gasket Re tighten the bolts and check for leakes If your furnace burns with a lazy flame or does not appear to get enough draft the draft gate is closed t...

Page 42: ...rchaser shall assume all costs related to shipping the replacement parts or return of the unit to the factory for replacement If it is determined that the defect was caused by the Manufacturer the Man...

Page 43: ...43 SERVICE RECORD DATE SERVICE OR CLEANING PERFORMED This record must be sent in when any warranty claims are made...

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