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Programming & Operating Instructions
“ZX” Controller
Timer Resolution
The Timer displays time in two different scales. From 0 to
60 minutes, the time is displayed in Minutes/Seconds (“MN”
Mode). From 1 to 12 hours, the time is displayed in Hours/
Minutes (“HR” Model). The mode indicators are located in
the first number digit to the left of the colon.
Temperature Scale
The controller can be set to display the trumpeter in °F or °C
as follows:
• Turn Power Switch to COOK position.
• Set TIME to 00:00 and TEMP so “20” is displayed
in the right two temperature digits.
• Press and hold the START TIME button for 5
seconds. The control will display “CCC” or “FFF” in
the temperature digits to indicate it has entered the
mode.
• Entering will toggle between “CCC” and “FFF”.
Pressing and holding the RACK 1 button again will
also toggle the setting.
• Turn Power Switch to OFF position to exit.
Power Input Frequency
The controller will automatically set itself to operate on
50Hz or 60Hz, depending on the power source used. All
timers and internal clocks are automatically compensated.
Time Dial
The TIME dial sets time intervals for cooking. It is used in
either programming or manual cooking.
Rack Buttons (1-5)
The five (5) Rack Buttons are provided to allow up to 5
individual shelves, or racks, to be timed at different
intervals. The shelves can be selected in any order. The
temperature setting must be the same for each rack button.
Temp Dial
The TEMP dial sets the temperature. The temperature
changes in 5°F or 1°C increments.
Fan High Low Button
The FAN HIGH LOW Button puts the control into a cook
mode and the heating elements enabled. Each time the
button is pressed, the control switches between the high or
low speed fan. If neither fan is enabled, the high speed fan is
selected automatically. The HI FAN and LO FAN
indicators show which fan speed is selected.
Fan Con/Cycle Button
The FAN CONT/CYCLE Button enables the fan to run
continuously during the cooking cycle, or run only when the
control is calling for heat. The display will show FAN CYC
when the cycled fan mode is selected and FAN CON when
the continuous mode is selected. The CYCLE indicator will
light when the cycled fan is enabled.
Time Selector Buttons (1-5)
The five (5) Timer Buttons are provided to allow up to 5
different preset time intervals to be programmed. When a
Time button is pressed, its timed setting will be recalled and
displayed in the time digits.
Cancel Button
The CANCEL Button is provided to clear the End of Cycle
beeper or “zero” a non-running timer. A running timer can
be cancelled by pressing the selected Rack button to recall
the timer and then pressing the CANCEL button within 3
seconds.
Cool Down
This feature enables the oven to be cooled rapidly by
allowing the fan to operate with the heating elements turned
off. To activate, turn the Power Switch to the COOL position
and open the oven door. When the door is opened enough to
disengage the door switch, the fan will turn on. Closing the
door will turn the fan off.
Power Up
On initial power up, the time digits will always display zeros
with a colon. The temperature digits will display zeros with
the degree (°) indicator lit. The C will also be lit in the
display if the Celsius option is selected. When the control is
turned off, the temperature/timer setting is stored. When the
control is turned on again, it will automatically return to the
last set time and temperature.
Timer Buttons
Each of the TIMER buttons can be programmed to a
different setting. Pressing and holding a TIMER button and
setting the timer dial to the desired setting programs them.
When the TIMER button is released, the displayed time is
saved.
Manual Cooking
A normal cooking cycle where all of the product to be
cooked is placed in the oven at once can be initiated as
follows:
• Turn Power Switch to COOK position.
• Set the desired temperature using the TEMP dial.
• Select the desired fan speed using the COOK HI/LO
FAN button.
• Select the fan to be on continuously or cycled using
the FAN CON/CYC button.
• Set the desired time using the TIME dial or selecting
one of the preset TIMER buttons.
• Press one of the RACK buttons to start the cooking
cycle. The timer will begin to count down and the
selected Racks indicator will begin flashing.
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