Vulcan 1VK45A Manuel d'utilisateur télécharger pdf (Page 24)

SERVICE PROCEDURES AND ADJUSTMENTS

Certain procedures in this section require electrical test or measurements while

power is applied to the machine. Exercise extreme caution at all times and follow Arc Flash

procedures. If test points are not easily accessible, disconnect power and follow Lockout/Tagout

procedures, attach test equipment and reapply power to test.

ELECTRIC CONNECTIONS

The VK series fryers are supplied with a 120Volt cord

and three prong plug. If local electrical codes require

that these fryers be plugged into a Ground Fault

Interrupter or GFI. You must use GFI part number

913053. Other GFI outlets may not have the correct

tolerance for the spark to ground ignition system

employed with the VK series fryers.

HARMONIC TONE

Harmonic Tone (hum) at First Start

At first start, fryer will begin heating in low fire. There

will be a harmonic tone that is NORMAL to hear. As

fryer continues to heat, harmonic tone will dissipate

and become less noticeable. When fryer reaches

135°F (end of melt cycle), fryer will heat on high fire

and blower speed will increase.

TEMPERATURE PROBE FAULT

CODES

The temperature probe is used for both the solid state

control and the computer control. The probe is an RTD

(resistance temperature detector) of the thermistor

type. As temperature increases the resistance value

decreases.

Probe Fault

If a temperature probe fault or high temperature

condition occurs, a fault message will be displayed

and the electronic alarm will sound continuously. The

heat demand and basket lift outputs are de-activated.

If a cooking cycle is in process (timer active), it will be

cancelled and the key pad disabled.

This will continue until the fault clears, power is cycled

or problem resolved.

CONTROL TYPE FAULT

SOLID STATE

An open will display Prob and

a short or high temperature

condition will display HI.

CONTROL TYPE FAULT

COMPUTER

An open will display PROBE

OPEN and a short or high

temperature condition will

display PROBE SHORT.

TEMPERATURE PROBE TEST

To Check:

1. Turn power switch off.

2. Disconnect the temperature probe plug.

Fig. 47

3. Test the probe using a VOM to measure

resistance. Connect the meter leads to the wires

removed in step 2.

A. If the measured resistance values are within

the allowable range, the probe is functioning

properly. Reverse procedure to install.

B. If the measured resistance values are

outside the allowable range, install a

replacement probe and check for proper

operation.

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS

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Vulcan 1VK45A Manuel d'utilisateur Page 24

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