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Impinger I – Operator Manual
14
In order to avoid a hazard due to inadvertent resetting of the thermal cutout, this
appliance must not be supplied through an external switching devise such as a
timer or connected to a circuit that is regularly switched on and off by the utility.
!
CAUTION:
PROGRAMMING (CONT’D)
(ALL MODELS)
INTRODUCTION – START-UP AND SUT DOWN
For the operator, the panel has a power up, run, and program menu modes. To start the oven, turn the power
switch on. To shut down the oven, turn the power switch off.
FRONT PANEL LAYOUT
The front panel contains four (4) momentary push-buttons: TEMP, TIME, UP & DOWN. There is a 2 line x 16
character VFD display.
TEMPERATURE SETPOINTS
For Digital Advantage ovens, there is one setpoint. To enter the setpoint mode, press the TIME & TEMP buttons
together and hold for 5 seconds. Pressing the UP or DOWN push-buttons will raise or lower the temperature to the
desired setting. In the Fahrenheit, F mode, the temperature is adjusted in 5 degree increments. When in
Centigrade, C mode, the temperature adjustment will be in 1 degree increments. Pressing and holding the UP or
DOWN keys will allow the settings to “roll” at a much faster rate. When the desired temperature is indicated,
release all keys. After 5 seconds, the selected setpoints will be stored and remain in memory.
TIME SETPOINTS
There is one setpoint for the conveyor speed. Enter the setpoint mode as mentioned above. The speed can be set
as follows:
1:00 to 9:55 in 5 second increments
10:00 to 12:45 in 15 second increments
13:00 to 19:30 in 30 second increments
20:00 to 30:00 in 1 minute increments
JUMPING BETWEEN MENUS
Pressing the TIME push-button while in the TEMP setting mode (and vice
versa) will cause the menu selection to jump over to that mode.
DIAGNOSTIC MESSAGES
The Digital Advantage ovens have diagnostic messages within the control. In
the unexpected event that there is a failure in the oven operation, the following
messages will appear in the control.
OPEN PROBE
This occurs when there is no temperature being sent to the controller from the baking chamber.
SHORTED PROBE
This occurs when a constant temperature signal (as opposed to the normal cyclical cavity temperature) is being
sent to the controller from the baking chamber. CAUTION: This message can also occur when there is no gas
supply to the oven. If the oven does not detect a temperature fluctuation in 5 minutes, the error message will
appear. Be sure to check the gas valve and gas hose for proper connections.
BELT JAM
This occurs when the conveyor motor fails.
REVERSING SWITCH
The oven has a belt direction-reversing switch located on the back of the control box.
FUNCTIONS
THERMAL CUT-OUT SWITCH
The Impinger I unit includes a “safety thermal cut-out switch” for your protection. This safety related device is
designed to insure that the Impinger I unit will not overheat and damage the unit. In the unlikely event that the
Impinger I unit would exceed the specified operating temperature range, the “safety thermal cut-out switch” will
activate, thus blocking power to the Impinger I unit and causing it to turn off.