819-0001 JUN 07.pdf - Frymaster
819-0001 JUN 07.pdf - Frymaster
819-0001 JUN 07.pdf - Frymaster
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FAILURE TO CONTROL AT SETPOINT<br />
Problems in this category may be with the temperature probe, the interface board, or the controller.<br />
1.7.4 Computer-Related Problems<br />
COMPUTER MAGIC III FEATURES<br />
SENSITIVITY OR “STRETCH AND SHRINK TIME”<br />
Sensitivity or stretch time is a programmable feature, patented by <strong>Frymaster</strong>, which increases or<br />
decreases the cooking time countdown based on variations in the oil temperature from the set point.<br />
The sensitivity for each product button has ten settings (0 through 9). A zero sensitivity setting will<br />
disable the feature (no change in cooking time), while a nine will provide the highest sensitivity or<br />
most change. The correct sensitivity for any product is based on the product, its density, the set<br />
point temperature, and the customer’s own requirements.<br />
RECOVERY TIME<br />
Recovery time is a method of measuring a fryer’s performance. Put simply, it is the time required<br />
for the fryer to increase the oil temperature from 250ºF to 300ºF (121ºC to 149ºC). This range is<br />
used as a standard since ambient kitchen temperatures can effect the test if lower ranges are used.<br />
The Computer Magic III performs the recovery test each time the fryer warms up. An operator can<br />
view the results of the test any time the fryer is above the 300ºF (149ºC) point by pressing the<br />
button and entering the code 1652. The test results will be displayed in the computer’s LED panel in<br />
minutes and seconds. The maximum acceptable recovery time for the H50 Series of fryers is two<br />
minutes and twenty-five seconds.<br />
COMMON COMPUTER COMPLAINTS<br />
Most problems concerning computers have to do with programming them. There are four common<br />
complaints. The complaints, their causes, and corrective actions are:<br />
1. Fryer constantly displays “HI.”<br />
Cause: Setpoint incorrect or missing.<br />
Corrective Action: Press 1650, enter the correct setpoint using keypad, then press to lock<br />
in the setpoint.<br />
2. Temperature is displayed in Celsius.<br />
Cause: Computer is programmed to display in Celsius.<br />
Corrective Action: Press 1658.<br />
3. Temperature is constantly displayed.<br />
Cause: Computer is programmed for constant temperature display.<br />
Corrective Action: Press 165L.<br />
4. Computer times down too slowly or too quickly.<br />
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