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Maxi Heat 500IQ 

SERIAL NUMBER 14-000001 AND UP 

MH500 IQ Specs 

● Btu per burner- 515,000 
● CFM per burner- 3200 
● Fuel consumption per burner- 3.65 Gal/h 
● Recommended fuel consumption- K-1 Kerosene or No.1 Diesel 
● Operating power per burner- ~115 V, 1-PH, 60Hz 24 A (MAX 82 A) 
● Weight per burner- 357 lbs 
● Nozzles per burner- 2 GPH 60` Delavan Type A & 1 GPH 60` Delavan Type W 
● Operating fuel pressure- 145 PSI/ 1000 kpa/ 10 bar 

 

Overview 

 

The IQ system is a design that allows for the simplicity and ease of 

operation. At start up the IQ system will calibrate for the ambient air 

temperature and elevation to determine the air to fuel ratio setting for the 

air band. There are no more calibrations needed after this point and the IQ 

system will recalculate the airband adjustment as ambient temperature 

changes.  

 

 
 

Control Screen Flickering/ Turning off & On 

The screen is a 12 volt system and receives power from the transformer box next 
to the IQ controller. Check power at the two terminal wires (blk & white) going 
into the right side of the IQ control. Check all connections on the main PC board 
and fuses.  

 

Check the Voltage regulator in the control box below Image (A). Make sure all 
voltage is proper. 
 

Make sure the rocker switch on the heater outlet door is working (Picture below). 
The switch is a two pole switch that closes once the door is opened. Power is 
sent to the screen for illumination.  

 

Содержание MAXI HEAT 500IQ

Страница 1: ...to determine the air to fuel ratio setting for the air band There are no more calibrations needed after this point and the IQ system will recalculate the airband adjustment as ambient temperature chan...

Страница 2: ...Maxi Heat 500IQ SERIAL NUMBER 14 000001 AND UP If the problem persists and power at the converter box showing 12 volts to the screen then replace the screen...

Страница 3: ...ecure then check to see if the engine is getting fuel Pull the return line on the fuel pump and turn the engine over to see if the fuel pump is working correctly Loosen the injector line at the inject...

Страница 4: ...Maxi Heat 500IQ SERIAL NUMBER 14 000001 AND UP...

Страница 5: ...et or in the burner itself Kinks in the ducting can cause this issue Make sure the ducting is straight with limited bends and no elevated lifts or descending of the ducting Check ducting for proper fl...

Страница 6: ...box and over to the side is a wrench icon press it After pressing the icon type the password 123 then press the Enter button You can control the fan manually from this point Note If you turn the fan...

Страница 7: ...Maxi Heat 500IQ SERIAL NUMBER 14 000001 AND UP...

Страница 8: ...Maxi Heat 500IQ SERIAL NUMBER 14 000001 AND UP...

Страница 9: ...le switch if one side fails then the other could still open and provide power to the other screen Check the relay in the transformer box next to the controller Example A Make sure connections are secu...

Страница 10: ...Maxi Heat 500IQ SERIAL NUMBER 14 000001 AND UP...

Страница 11: ...e burner Test for loss of voltage at the Ignitor box in the burner assembly See example B Terminal N L are power in If there is no voltage then check the IQ controller for power loss Power into the co...

Страница 12: ...Maxi Heat 500IQ SERIAL NUMBER 14 000001 AND UP Example B...

Страница 13: ...Maxi Heat 500IQ SERIAL NUMBER 14 000001 AND UP...

Страница 14: ...Maxi Heat 500IQ SERIAL NUMBER 14 000001 AND UP...

Страница 15: ...which trips the thermostat Look for the black cap on the heat exchanger below the main blower fan Example A Remove the cap and you will expose a red button This button is connected to the safety ther...

Страница 16: ...ounts of air mixture Check for any debris or material covering or blocking the air damper Clean and clear Check fuel pressure and maintain 140 145 PSI at the pump Ensure fuel nozzle NO 1 NO 2 are both...

Страница 17: ...CS W ISUZU T4F 3CE1 Burner FUEL FILTER 35 MICRON 107222 MH 14 Engine AIR FILTER 650290 MH 14 OIL FILTER 22 000309 MH 14 FUEL FILTER 22 000310 MH 14 FILTER KIT ALL FILTERS 108461 MH 14 MH 500IQ MCS W C...

Страница 18: ...Separator 35 Micron Fuel Filter 107222 Timer Module 921432 Cat 1 5 T4F Parts Ignition Keys 920474 Ignition Cat 920475 Hour Meter 340014 Timer Shutdown 650302 Cat 1 5 Muffler 104867 Muffler Gasket 6502...

Страница 19: ...Maxi Heat 500IQ SERIAL NUMBER 14 000001 AND UP...

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