PFG 600 C7000 Heat Reference

Idle Mode

The idle modes main function is to lessen the breakdown of oil, by programming a lower temperature, when the unit is not in use. The idle mode can be selected by depressing the SELECT PRODUCT switch until the idle mode is indicated. Automatic idle is enabled by programming “A” in the display. Also, the idle time can be programmed. This means the control will select idle automatically after the programmed time has elapsed.

When this is programmed the type of idle can be selected: cycle idle or time idle. This is indicated with a “C” or “T”. In cycle idle the programmed time is started every time a new product is selected. In timer idle the programmed time is started at the end of each cook cycle. Depress the SELECT FUNCTION switch. A “C” or “T” will be displayed’ indicating cycle idle or time idle. Also, the idle temperature can be programmed from 170°F to 390°F. This is normally set at 250°F.

The following are four examples of the idle mode.

Example 1: AUTOMATIC IDLE - idle temperature is 250°F and the idle time is 30 minutes. Control is programmed in eye idle. If no product is cooked within 30 minutes, control will automatically select IDLE and regulate at 250°F.

Example 2: AUTOMATIC IDLE - idle temperature is 250°F and the idle time is 30 minutes. in idle. Several loads of different products are cooked. As long as no more than 30 minutes pass between product selections, the control will not select idle.

Example 3: AUTOMATIC IDLE - idle temperature is 250°F and the idle time is 30 minutes. Control is programmed in timer idle. A product is selected and several loads are cooked. As long as a load is cooked within 30 minutes of the last load, the control will not go into idle. If 30 minutes pass between loads, the control will automatically select idle.

Example 4: AUTOMATIC IDLE IS NOT PROGRAMMED - control in manual idle. The control will remain in the product selected by the operator. Operator must use SELECT PRODUCT switch to enter idle mode.

Load Anticipation

When dropping a large load of product into the fryer, there is a large temperature drop. On normal controls there is a time period before the thermostat senses this drop. With load anticipation this time period is avoided by turning the heat on as soon as the timer is activated. The heat will remain on until the control senses that the temperature is increasing at which point normal heat control takes over. When programming, the display will read 00 to lO°F. For example: if 5 degrees is programmed, this means the temperature cannot exceed five degrees above setpoint temperature before normal heat control takes over. This is a safeguard or a temperature limit.

Load Compensation

Load compensation, although factory preset, is programmable. Load compensation adjusts cooking times to compensate for differences in the cooking process such as load size. The control is continuously comparing the vat temperature to the setpoint temperature. If the vat temperature is above the set point, then the control will shorten the cook time. If the vat temperature is below the setpoint, then the control will lengthen the cook time. This is programmable within this function by displaying 0 to 10. Zero meaning no load compensation, while ten means the highest load compensation.

Melt Mode

The melt mode is used to safely melt solid oil and can also be used with liquid oil. Gradually heating or melting the oil greatly extends its life. This is automatically accomplished in the melt mode by turning the heat on for 3 seconds and off for 27 seconds. The operator has the option of entering melt manually with the SELECT PRODUCT switch or programming automatic melt. Select the melt mode and program “A” for automatic. At this time also program the melt temperature. This is the temperature the control will exit the melt mode and go into the heat mode. It is recommended to program this temperature at 170°F. After programming, the control will work as follows: when the unit is turned on the control checks the vat temperature. If the vat temperature is below 170°F or programmed temperature, the unit will enter the melt mode. If the vat temperature is above 170°F or programmed temperature, the unit will enter the programmed first cycle.

Once vat temperature exceeds the programmed melt temperature the melt mode cannot be entered.

While in the melt mode, the first cycle can also be programmed. This is the cycle the control will automatically select when in COOK upon exiting the melt mode. It is programmed by selecting the melt mode and depressing the SELECT FUNCTION switch. The green 1st cycle light will flash and the temperature light in the function display will be on. The left half of the product display are numbered from top to bottom, 1 to 6. The right half are numbered 7 to 10. Melt and Idle are not numbered. However, idle can be selected as the first cycle. If number one of the product display is desired as first cycle, program a number one. If number eight of the product display is desired, program number eight.

An unprogrammed product cycle cannot be selected as the first cycle.

 

Proportional Control

Proportional control regulates vat temperature by pulsing the heat until it reaches setpoint temperature. This allows tighter regulation of vat temperature and also eliminates the “override” of setpoint temperature. The control can be programmed 0 to 30 degrees; zero being no proportional control (best recovery time) and up to thirty degrees meaning the control will pulse the heat off and on thirty degrees before it reaches setpoint (best temperature regulation). Since each product can be programmed with a different proportional control factor, temperature accuracy and recovery time can be tailored to each food product.