Impinger 3270 Service Manual – Dom & Int’l
25
OVEN CONTROL – PROGRAMMING
NOTE: All bake times should be within 10 seconds of set bake time. Cavity temperature should be calibrated
to within 5°F of set temperature. For temperature calibration, allow oven temperature to stabilize for, at
minimum, 30 minutes. Before checking conveyor speed, allow conveyor to run for 10 minutes.
1.
BEFORE APPLYING POWER TO THE OVEN, ENSURE PROPER VOLTAGE JUMPER SETTING
FOR 120V OR 240V AND THAT THE 50 HZ / 60 HZ JUMPER SETTING IS CORRECT. JUMPERS
ARE LOCATED ON CONVEYOR CONTROL BOARDS.
2.
To initialize a new control, hold the two center buttons in then turn unit on. Release buttons.
A. Select the correct oven model number (e.g. 3255 or 3270) by toggling the (+) or (-) buttons. When
correct model # is selected, press the TEMP button to store.
B. Select the proper belt configuration for this oven by toggling the (+) or (-) buttons. Press the TEMP
button to store.
C. Allow control sufficient time to update programming. Shut off main fan switch. Initialization of control
is now complete.
3.
Set digital control for proper temperature scale °F or °C.
A. Press and hold the 2RH buttons to enter sub-level program. The prompt
“Technicians Only”
will
be displayed. Momentarily, a second prompt
“Please Release Buttons”
will be displayed. After
releasing the buttons, quickly press the
TIME
button and the
(+)
button to enter the program. After
Sub Program Menu
is displayed, press and release the
TEMP
button. Pressing the
(+)
or
(-)
buttons will toggle choices between °F and °C. After desired scale is selected, allow control to revert
back to normal operating mode.
4.
Set bake time and oven temperature – Set Point Menu
A. Press and hold the TIME and TEMP buttons to enter Set Point Menu. Once in Set Point Menu,
press TEMP button and adjust temperature using (+) or (-) buttons. Press TIME button while still in
Set Point Menu and adjust time using the (+) or (-) buttons. Pressing the TIME or TEMP button will
show the respective setting. Once desired settings are programmed, allow control to revert back to
normal operating mode.
B. While in this mode, continue to press the TIME button to toggle between different conveyors.