Vulcan-Hart GR Series Service Manual page 32

GR Series Gas Fryers with NCC Controls (formerly Tridelta / Built after 3/05) - SERVICE PROCEDURES AND
Fig. 52
NOTE: The controls heat demand output signal is off
and the heat/ignition status input signal is ignored if
the fryer is in cook mode or idling.
1. Turn power switch on and when the program
revision is displayed, press PROGRAM to enter
Service Setting Mode.
A. The SERVICE SETTINGS are shown on the
left and right display screens.
2. Verify the settings shown on the display screen
are correct for the fryer being serviced.
3. To change a service setting.
A. Press the desired product number key (1
thru 6) on the control panel that corresponds
to the service setting number on the display
screen.
1) Beeper chirps on each successful key
press and all LED's are off. When a
service item is selected, only the keys
required to change the setting are
active.
B. Press toggle key to alternate between
available selections, or use product number
keys where indicated to enter a value. The
current selection will be "blinking".
C. Press PROGRAM key to save the selection
- "Blinking" stops.
F35660 Rev. A (0717)
ADJUSTMENTS
D. Access the other service settings as
necessary.
4. To enter DIAGNOSTICS mode, press product
number key 7 on the control panel.
A. Press the desired product number key (1, 2,
3, 4, & 6) on the control panel that
corresponds to the diagnostic test number
on the display screen to check the output
signal to the component.
1)
NOTE: Item 5 (drain) displays the real time status and
does not require pressing the corresponding product
number key. Item 3 (heater) - The output signal will be
active for 3 seconds (heat on) then turn off.
B. For item 6 DISPLAY: - change the setting as
desired.
1)
2)
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Fig. 53
Fig. 54
Press the same product number key
again to turn the output off.
Press product number key 6 to access
the display screen adjustment settings.
Press the left or right arrow key on the
PROGRAMMING MENU SELECTION
screen to select the screen to adjust.
Display shows "THIS LCD
SELECTED".