Middleby Marshall P/N 60250 Oven User Manual


 
21 P/N60250September28,2012
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 tem-
perature of the right side of the oven.
2. Left actual temperature - Indicates current average tem-
perature 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
ow. 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 opera-
tion once both sides of the over are within 5° F of the set point.
Energy Mode Four - This is a complete oven shut down. Plac-
ing 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.