Blodgett MT3870, Service And Repair Manual

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MT3870
3-1
COMPUTER CONTROLLER
1
2
3
4 5 6 7 8
9
FIGURE 1
CONTROL DESCRIPTION
1. DIGITAL DISPLAY - Displays the time, temĆ
perature and controller related information.
2. OVEN ON/OFF - Controls power to the oven.
3. NUMERIC KEYS - Used to enter numerical
data in the programming mode.
4. CLEAR KEY - Used to clear the display if an
error is made in the programming mode.
5. SET TEMP KEY - Used to view or program the
temperature setpoint.
6. ACT TEMP KEY - Used to view the current
oven temperature.
7. TIME KEY - Used to view or program the cook
time.
8. PROG/ENTER KEY - Used to enter and exit
the programming mode. Also used to lock in
programmed settings.
9. STATUS LAMPS - When lit indicate that the
fan or burners are operating.
This oven, supplied with remote control, is
equipped with an emergency shut down
switch. Should you need to stop the belt,
fans, or heat press the emergency switch.
Do not use the emergency switch as a
GENERAL on/off switch!
CONTROL OPERATION
To turn the oven on:
1. Press and hold the ON/OFF key (2). The disĆ
play reads OFF when the oven is idle.
2. The display flashes WAIT LOW SET TIME
mmss.
3. The FAN and HEAT status lamps (9) light. The
fans begin to run. The heat rises to the proĆ
grammed temperature. The conveyor belt
travels at the programmed speed.
To view the cook time setting:
1. Press the TIME key (7). The LED on the key
lights and the display flashes SET TIME
mmss.
To display the actual oven temperature:
1. Press the ACT TEMP key (6). The LED on the
key lights and the display reads ACTUAL
nnnn F.
To view the temperature set point:
1. Press the SET TEMP key (5). The LED on the
key lights and the display flashes SET TEMP
nnnn F.
To turn the oven off:
1. Press the ON/OFF key (2). The blower moĆ
tor(s) continue to run regardless of the controlĆ
ler status until the temperature drops below
180 F (82 C).