Middleby Marshall PS770G GAS User Manual Page 16

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16
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 conveyor
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 conveyor
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 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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