Solid State Control; Operation; Service Programming; Error Messages - Vulcan-Hart VK Series Service Manual

VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS
Fig. 51

SOLID STATE CONTROL

Operation

Use service information in this section when servicing
a fryer with a solid state control. Refer to instruction
manual for specific operating instructions.
NOTE: In operator programming mode, control can
be reset to it's default values by pressing the TEMP
key for 2 seconds.

Service Programming

Solid state control Service Mode is used to perform
system diagnostic tests or edit programs that affect
the fryers operation.
PROGRAM
ITEM
Brand Name Press left or right basket to select display name.
Temperature
Press left or right basket to select temperature unit of measure.
Display Mode
Press left or right basket to select fryer type.
Boil or Filter
Boil key overlay = stand alone fryer.
Function
Filter key overlay = filtering system fryer batteries.
Press left or right basket to select fryer energy source (electric or gas heat)
Fryer Type
Gas Star must be selected for VK and TR Fryers
Press left basket to increase or right basket to decrease offset temperature
Calibration
Offset
(range -20 to 20)
F45474 (0413)
Control Programming
KEY SEQUENCE
2
Page 28 of 55

Error Messages

Refer to ALARM MESSAGES at end of section.

Enter Service Mode

NOTE: Control heat demand output signal is off and
heat/ignition status input signal is ignored.
1. Cycle power switch. When the program version
number is displayed, press PROGRAM key to
enter Service Mode.
A. Beeper chirps on each successful keypress.
2. To scroll through each of the program items,
press PROGRAM key and release.
A. To reset all service mode program items to
factory default, press and hold TEMP key for
2 seconds.
3. To exit Service Mode and save selections, press
PROGRAM key and hold for 1 second. Fryer
returns to normal operation and display shows
the current heating mode based on shortening
temperature:
• MELT L (liquid; default) or Melt S (solid) if
shortening temperature is below 135°F.
• HEATING if no melt is selected and
shortening temperature is below set point.
• Fryer set point temperature if actual
shortening temperature is within set point
range.
4
1
DISPLAY
Hobart or Vulcan
DEG F OR C
BOIL OR FILTER
ELECTRIC or
GAS or Gas*
(Star)
OFS 00F (always
in °F)