IPT Pellet Grills User’s Guide

INTRODUCTION

MAJOR FEATURES Three Digit Temperature Display Front Panel Cook Control Eight Cook Temperature Settings (180 through 375 degrees) “High” Cook Temperature Setting Front Panel Smoke Control Sixteen Smoke Settings (P0 – P15) Ignition Indicator Smoke Setting Indicator Cook Idle Fuel Rate Indicator Inadvertent Start Protection Over-Temperature Protection

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HOW IT WORKS

Cook Mode:

In Cook Mode, the temperature of the grill is constantly monitored and a microprocessor operates the draft fan and fuel feed auger to maintain a constant grill temperature.

Smoke Mode:

In Smoke Mode, the fuel feed rate is set manually by the operator.  The grill operates at low temperature to provide maximum smoke.

OPERATION

OVERVIEW

LED Readout:

Displays grill temperature, smoke settings, idle fuel feed settings, igniter status, and error messages.

Cook Control Switch:

Selects Off, Smoke Mode, or one of nine Cook Mode grill temperatures.

Smoke Control Switch:

Selects one of sixteen smoke/idle fuel feed rates.

Cook Mode:

Maintains the selected cook temperature.

Smoke Mode:

Produces maximum smoke at a low grill temperature.

Microprocessor Control:

In Cook Mode, the temperature of the grill is constantly monitored and a microprocessor operates the draft fan and fuel feed auger to maintain a constant grill temperature.

Manual Control:

In Smoke Mode, the fuel feed rate is set manually by the operator.  The grill operates at low temperature to provide maximum smoke.

UNDERSTANDING THE DISPLAY

Numbers:

When the grill is connected to AC power, the model number and software version of the control are displayed momentarily.

Temperature:

In Cook Mode and Smoke Mode, the grill temperature is displayed in 5 degree (Fahrenheit) increments.

Flashing Dots:

The igniter is on.

“P0” – “P15”:

When the Cook Control switch is set to the Smoke position, the smoke setting is displayed for 3 seconds.

 If you adjust the Smoke Control switch while in Smoke Mode, the smoke setting is displayed for 3 seconds.

 If you adjust the Smoke Control switch while in the Cook Mode, the idle fuel feed rate setting is displayed for 3 seconds.

Flashing “ErH”:

The grill temperature exceeded 615 degrees.

Flashing “ErP”:

The Cook Control switch was not in the Off position when the grill was connected to AC power.

CONNECTING THE GRILL TO AC POWER

Turn the Grill Off:

Set the Cook Control switch to the Off position.

Plug the Grill In:

Connect the grill to AC power.  The control displays its model number and software version.

If you see “ErP”:

If the Cook Control switch is in the Smoke position or any temperature setting when the grill is plugged in, the control will display “ErP” indicating an inadvertent start error.  The standard ignition sequence is halted.  This feature prevents an inadvertent start.  For example, if the grill is stored in the garage, the grill will not ignite if plugged in inadvertently.  To clear the error, set the Cook Control switch to Off.

IGNITING THE GRILL 

Cook Control:

ignite the grill, set the Cook Control switch to the Smoke position or any temperature setting.

Ignition Sequence:

The draft fan turns on.

The igniter turns on.

The fuel feed auger turns on and delivers fuel continuously for one minute and twenty seconds.

The grill temperature is displayed along with three flashing dots signifying that the igniter is on.

The igniter turns off after four minutes.

Once the igniter turns off, if the Cook Control switch is set to the Smoke position, the grill operates in Smoke Mode.  If the Cook Control switch is set to a temperature setting, the grill operates in Cook Mode.  The flashing dots are turned off.

COOKING

Cook Control:

Set the Cook Control switch to the desired temperature.  The control displays the grill’s current temperature.

Cook Sequence:

Once the ignition sequence is complete and the igniter turns off, the auger feeds fuel into the fire pot to maintain the set temperature. 

Temperature  Settings:

180         180 degrees

225         225 degrees

250         250 degrees

275          275 degrees

300         300 degrees

325          325 degrees

350          350 degrees

375          375 degrees

High        525 degrees or Maximum Temperature

On Fuel Feed Rate:

The on fuel feed rate is the rate the auger delivers fuel while the grill is under the set temperature.  In Cook Mode, the on fuel feed rate is designed to drive the grill’s temperature upward to the set temperature and limit temperature overshoot.  The on fuel feed rates are preprogrammed into the control. 

Temperature
Setting                 Auger On            Auger Off        

180                       15 seconds           35 seconds     

225                       15 seconds           20 seconds

250                       15 seconds           15 seconds

275                       15 seconds           10 seconds

300                      15 seconds           5 seconds

325                       always on            0 seconds

350                       always on            0 seconds

375                        always on           0 seconds

High                     always on           0 seconds

Idle Fuel Feed Rate:

The idle fuel feed rate is the rate the auger delivers fuel while the grill is idling at or above the set temperature.  In Cook Mode, you can manually adjust the idle fuel feed rate using the Smoke Control switch.  See “Understanding Idle Fuel Feed Rate and Smoke Settings” for more information.

High Temperature:

If the Cook Control switch is set to High, the grill operates at

Setting:

525 degrees.  If the grill is unable to attain 525 degrees due to ambient temperature and humidity, fuel type and quality, and/or thermal characteristics of the grill, the auger feeds fuel continuously allowing the grill to operate at its Maximum Temperature.

High Temperature Limit Error (ErH)::

If the current grill temperature is greater than 615 degrees, a flashing “ErH” is displayed indicating a high limit error and the grill shuts down.  Refer to the “Error Modes and Messages” section for details.

SMOKING

Smoke Control:

Set the Cook Control switch to Smoke.  Use the Smoke Control switch to manually select the auger fuel feed rate.  The control displays the grill’s current temperature.

Smoke Sequence:

Once the ignition sequence is complete and the igniter turns off, the auger delivers fuel at a constant rate determined by the smoke setting (P0 – P15).

Smoke Setting:

The smoke fuel feed rate is the rate the auger delivers fuel while the grill is operating in the Smoke Mode.  In Smoke Mode, manually adjust the fuel feed rate using the Smoke Control switch to establish the desired temperature and/or smoke output.  See “Understanding Idle Fuel Feed Rate and Smoke Settings” for more information.

High Temperature Limit Error (ErH):

If the current grill temperature is greater than 615 degrees, a flashing “ErH” is displayed indicating a high limit error and the grill shuts down.  Refer to the “Error Modes and Messages” section for details.

COOLING DOWN THE GRILL 

Cook Control:

To cool down the grill, change the Cook Control switch from Smoke or any of the temperature settings to the Off position.

Cool Down Sequence:  

The igniter turns off.

The fuel feed auger turns off.

The draft fan turns on.

A count down timer is displayed.  The counter starts at “C20″ and is decremented every minute.

Once the 20 minute count down timer expires:

• The display is blank.
• The draft fan turns off.
• The fuel feed auger pulses on for 10 seconds.

UNDERSTANDING IDLE FUEL FEED RATE AND SMOKE SETTINGS

Smoke Control Switch:

The Smoke Control switch sets the fuel feed rate (the amount of fuel delivered in a given period of time) when the grill is operating in Smoke Mode and when the grill is idling in Cook Mode.

During cook idle or smoke mode, the auger turns on, delivers fuel for 15 seconds, then turns off.  The off time is set by the Smoke Control switch.

“P” Settings:

The fuel feed rate setting is displayed momentarily whenever the Cook Control switch is set to the Smoke position.  It is also displayed whenever the Smoke Control switch is adjusted.  The setting is designated with the letter “P” and a number.  The greater the “P” setting number the greater the auger off time.

Setting            Auger On           Auger Off              

P 0                   15 seconds          45 seconds           

P 1                   15                          55                         

P 2                   15                          65                         

P 3                   15                          75                         

P 4                   15                          85                         

P 5                   15                          95                         

P 6                   15                          105                       

P 7                   15                          115                       

P 8                   15                          125                       

P 9                   15                          135                       

P10                  15                          140                       

P11                  15                          145                       

P12                  15                          150                       

P13                  15                          155                       

P14                  15                          160                       

P15                  15                          165                       

Dual Function:

The selected “P” setting controls both the Smoke Mode fuel feed rate and the Cook Mode idle fuel feed rate.  They are one and the same.

For example, if “P3” is selected using the Smoke Control switch, the auger delivers fuel for 15 seconds, turns off for 75 seconds, and repeats in Smoke Mode.  It also delivers fuel for 15 seconds, turns off for 75 seconds and repeats while idling in Cook Mode.

Cook Mode Idle Fuel Feed Rate:

The idle fuel feed rate is the rate of fuel delivery that maintains the fire in the fire pot without raising the grill’s temperature.

In Cook Mode, whenever the grill temperature is at or above the set temperature, the auger runs at the idle fuel feed rate.  If the grill temperature is below the set temperature the auger runs at the on fuel feed rate.

We recommend the “P9” setting as the default idle fuel feed rate while in Cook Mode.

For the experienced operator, the auger idle fuel feed rate can be adjusted.  For example, to optimize temperature stability at a high temperature setting, select “P3” or “P4” to increase the auger idle fuel feed rate.  Or, if due to ambient conditions, the grill is unable to cool down enough to reach a low temperature setting such as 180 degrees, select “P10”, “P11, or higher to decrease the idle fuel feed rate.

High Temperature Idle Fuel Feed Rate:

In Cook Mode, the idle fuel feed rate for the High temperature setting is preprogrammed into the control.  The idle fuel feed auger timing at High is 15 seconds on / 10 seconds off and is independent of the Smoke Control switch “P” setting.  The preprogrammed fuel feed rate helps maintain the elevated cooking temperature at the High setting.

Smoke Mode Fuel Feed Rate:

In Smoke Mode, increasing the “P” setting decreases the fuel feed rate, lowering the grill temperature.  Start at setting “P9”, adjust the “P” setting manually for the desired temperature and/or smoke output. 

ERROR MODES AND MESSAGES

Inadvertent Start Error (ErP):

If the Cook Control switch is set to Smoke or to a temperature setting at the time the grill is plugged in, the control will display “ErP” indicating an Inadvertent Start Error.  The standard ignition sequence is halted.

This feature prevents an inadvertent start.  For example, if the grill is stored in the garage, the grill will not ignite if plugged in inadvertently.

To clear the error, set the Cook Control switch to the Off position.

High Temperature Limit Error (ErH):

If the grill temperature exceeds 615 degrees, the control displays “ErH” indicating a High Temperature Limit Error.

The fuel feed auger is turned off, the igniter is turned off, and the draft fan is turned off.

To clear the error, set the Cook Control switch to the Off position.  If the error will not clear, your temperature detector is not functioning normally.  See “Display is Flashing ‘ErH’” in the “Troubleshooting” section.

Flashing Dots:

The igniter is on.

This is not an error condition and does not affect the operation of the grill.  The flashing dots are designed to alert the operator that the igniter is on.

PRODUCT SERVICE AND SUPPORT

WIRING DIAGRAM

(Enter Picture)

AC AUGER THEORY OF OPERATION 

AC Auger:

The grill is equipped with an AC auger.  AC augers operate at a single speed and deliver fuel at a constant rate while on.  The fuel feed rate (amount of fuel delivered in a given period of time) is adjusted by varying the on and off time intervals.

Duty Cycle:

The ratio of time the auger is on is sometimes referred to as the duty cycle and is expressed as a percentage.  For example, if the auger is always on, its duty cycle is 100 percent.  If the auger is on half the time, its duty cycle is 50 percent, etc.

Idle and Smoke Fuel Feed Rates and “P” Settings:         

When the control is in Smoke Mode or idling in Cook Mode, the AC auger is turned on and delivers fuel continuously for 15 seconds and is then turned off.  The Smoke Control switch sets the auger off time.  The Smoke Mode/Cook Mode Idle Fuel Feed Rates are as follows:

Setting               Auger On           Auger Off            Duty Cycle

P 0                      15 seconds          45 seconds          25.0 percent

P 1                      15                          55                          21.4

P 2                      15                          65                         18.8

P 3                      15                          75                         16.7

P 4                      15                          85                         15.0

P 5                      15                          95                         13.6

P 6                      15                          105                       12.5

P 7                      15                          115                        11.5

P 8                      15                          125                       10.7

P 9                      15                          135                       10.0

P10                     15                          140                       9.7

P11                     15                          145                        9.4

P12                     15                          150                       9.1

P13                     15                          155                        8.8

P14                     15                          160                       8.6

P15                     15                          165                        8.3

TROUBLESHOOTING

WARNING!		Removing the control from the grill or working under the grill while the grill is connected to AC power could result in shock or could damage the control. Always disconnect the grill from AC power before removing the control from the grill or before working under the grill.
Digital Control Display is Blank		Cook Control switch is set to the Off position. Set Cook Control switch to the Smoke position or any temperature setting. Circuit breaker on AC outlet is tripped. Reset wall power outlet circuit breaker. Control AC line fuse is blown. Replace control’s fuse F1 with provided spare fuse or a replacement fuse. Fuse:  3A 250V fast blow 5x20mm Example:  Littelfuse part number 235003 Control is disconnected from grill AC power. Verify the control wiring harness plug with black wire is connected to AC power. Control is defective. Contact IPT Pellet Grills customer service.
Grill Will Not Ignite		No fuel in firepot. Fill hopper with good, dry fuel. Verify auger is properly connected to control. Clear auger if jammed. Replace auger and/or auger motor if defective. No draft air flow. Verify draft fan is properly connected to control and operating normally. Replace draft fan if defective. No ignition heat source. Verify igniter is properly connected to control and operating normally. Replace igniter if defective. Control is defective. Contact IPT Pellet Grills customer service.
Fire Goes Out		Set Cook Control switch to the Off position and allow grill to cool. No fuel in hopper. Fill hopper with good, dry fuel. No fuel in firepot. Verify the control is properly connected to auger. Clear auger if jammed. Replace auger and/or auger motor if defective. Unburned fuel in firepot. Adjust Smoke Control switch (decrease the “P” setting) to increase auger idle fuel feed rate. No draft air flow. Verify the control is properly connected to draft fan and operating normally. Replace draft fan if defective. Control is defective. Contact IPT Pellet Grills customer service.
Grill Temperature at the 180, 225 or 250 Degree Cook Setting is Too High		Auger idle fuel feed rate is too high. Adjust Smoke Control switch (increase the “P” setting) to decrease idle fuel feed rate. Temperature detector is defective. Replace temperature detector.  Control is defective. Contact IPT Pellet Grills customer service.
Unexpected Temperature is Displayed		Auger idle fuel feed rate is too high. Adjust Smoke Control switch (increase the “P” setting) to decrease idle fuel feed rate. Auger idle fuel feed rate is too low. Adjust Smoke Control switch (decrease the “P” setting) to increase idle fuel feed rate. Temperature detector is defective. Replace temperature detector. Control is defective. Contact IPT Pellet Grills customer service.
Grill Temperature Displayed is Different Than Dome Thermometer		This is normal. The displayed temperature is the precise temperature at the temperature detector.  The dome thermometer is located in a different position inside the grill.
Display Always Reads 0 Degrees		Temperature detector wire leads are shorted. Check connection at control terminal J1. Check the insulation for shorts throughout the wire run from detector to control terminal J1. Temperature detector is defective. Replace temperature detector. Control is defective. Contact IPT Pellet Grills customer service.
Display is Flashing “ErP”		Inadvertent Start Error. The grill was plugged in with the Cook Control switch in the Smoke position or set to a temperature setting. Set the Cook Control switch to the Off position.
Display is Flashing “ErH”		Over-Temperature Error. The grill temperature exceeded 615 degrees and shut off automatically. Set the Cook Control switch to the Off position. Temperature detector wire leads are open. Check connection at control terminal J1. Check for breaks in the wire throughout the wire run from detector to control terminal J1. Temperature detector is defective. Replace temperature detector. Control is defective. Contact IPT Pellet Grills customer service.

Disclaimer:

IPT Pellet Grills Company makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose.  Further, information in this document is subject to change without notice and does not represent any commitment on the part of IPT Pellet Grills Company.

Product Reference:

IPT Pellet Grill Digital Controller
Applicable Software Versions:  2.00
Document Number:  101-72-02-01