Middleby Marshall 60254 Manual Do Utilizador

Página de 36
20
P/N 60254 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 ovens will completely shut off, 
allowing the oven to cool. 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.