Middleby Cooking Systems Group PS770 installation manual II. Normal Operation STEP-BY-STEP

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II. NORMAL OPERATION - STEP-BY-STEP-

A. Daily Startup Procedure

1.Check that the circuit breaker/fused disconnect is in the On position. Check that the window is closed. The touch panel display should be lit.

2.Adjust the conveyor to the desired bake time.

3.Press the temperature button to display right and left hand oven settings. Set temperatures as desired.

4.Press the ON button to activate the oven. The con- veyor will not run, until the oven temperature has reached the set points.

B. Daily Shutdown Procedure

1.Make certain there are no products left on the con- veyor in the oven.

2.Press the ON square to turn the oven off.

3.Open the window to allow the oven to cool faster.

4.After the oven has cooled and the blowers have turned off, the circuit breaker/fused disconnect may be turned off.

Quick Reference – Touch Screen Controller A. Main Screen

1.On/Off button - Used to turn oven On and Off.

2.Conveyor speed - Pressing on either the minutes or seconds allows a new value to be input for the conveyor speed. Split belt ovens have two inputs (front and rear belts).

3.Oven temperature - Pressing on the set temperature shifts the user to the oven temperature set point/ indicator screen.

4.Energy level indicators - Indicators to either side of the screen indicate the energy input to that side of the oven.

5.Message bar - Indicates various messages pertaining to current oven conditions.

B. Oven Temperature/Set Point/Indicator Screen

1.Right actual temperature - Indicates current average temperature of the right side of the oven.

2.Left actual temperature - Indicates current average temperature of the left side of the oven.

NOTE: Right to Left temperature settings should not exceed a differential of 20 °F.

3.Right Set point temperature - Pressing on this value allows the user to adjust the set point for the right side of the oven.

4.Left Set point temperature - Pressing on this value allows the user to adjust the set point for the left side of the oven.

5.Exit - Returns to the main screen.

C. Energy Mode Screen

1.Mode Two - Pressing this button allows the user to set the amount of time that the oven allows before shifting from energy mode 1 to energy mode 2. Set- ting this value to zero disables this energy mode.

2.Mode Three - Pressing this button allows the user to set the amount of time that the oven allows before shifting from energy mode 2 to energy mode 3. Set- ting this value to zero disables this energy mode.

3.Mode Four - Pressing this button allows the user to set the amount of time that the oven allows before shifting from energy mode 3 to oven off. Setting this value to zero disables this energy mode.

Energy Modes

Energy Mode One - This mode is automatic, and starts (bake time +1 minute) after the last product has entered the oven. In this mode, the main oven blowers will lower to 1500 RPM, while the oven maintains temperature and belt speed.

Energy Mode Two - The oven lowers its set point by 100° F, and stops the belt. Anytime that the oven is more than 10 degrees over its set point, the burners will completely shut off, allowing the oven to cool and the burners are on minimum flow. The main blowers will continue to run at 1500 RPM in this mode. Placing any article on the input belt will cause normal operation of the oven to resume, and bring the set point back to its original level. The belt will resume operation once both sides of the oven are within 5° F of the set point.

Energy Mode Three - The oven will turn off completely and shut off the circulation blowers once the oven temperature has dropped below 200° F. Placing any article on the input belt will cause normal operation of the oven to resume, and bring the set point back to its original level. The belt will resume operation once both sides of the over are within 5° F of the set point.

Energy Mode Four - This is a complete oven shut down. Placing anything on the belt will NOT return the oven to Operation. The ON button on the main screen has to be pressed to restart the oven.

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Contents Owners Operating and Installation Manual Page Page Middleby Marshall Table of Contents Page Page Page Item QTY Description Page Standoff Installation Resetting Direction Jumper Switching Photo DetectorAttaching the Point of Sale Cable Conveyor Belt ReversalConnection 14 Gas Burner/Blower Motor and Piping Assembly Operation II. Normal Operation STEP-BY-STEP III. Quick Reference Troubleshooting Symptom Problem SolutionPage Page Page IV. Maintenance Every 6 Months Blower BeltsItem QTY Description Schematics