Appendix A Service Bulletin 0074
– NCC Electronic Temperature Control
http://www.gmpopcorn.com
Page 39
Temperature Control Board
Probe
Fault
LED
Power On
LED
Limit, Heat &
Alarm LEDS
.
Heat
Contactor
or Relay
Output
.
Limit
Contactor
or relay
Output.
Alarm
Light
Output
Jumper C
only for 230 VAC.
(Export Models)
Export Model
Jumper View
FIGURE 1
TC-B
is the Control
Thermocouple Input. +
is Yellow Wire.
TC-A
is the Limit Thermocouple
Input. + is Yellow Wire.
Beeper Off/On
Jumper
Remove
for no sound.
Beeper Volume
Jumper
. Remove
for lower sound.
Set Point Jumper
See Table 1 for
Location.
Salt/Sweet Option -
there are
two jumpers with wires. The
common wire (white)
is connected to a bottom jumper
pin.
First Time Overshoot Pot.
Factory Set.
Do Not Adjust!
Kettle Dump Pot.
Minus 0-10%.
Turning CW will signal
sooner, CCW will signal later.
L2
is neutral wire.
L1
is hot wire.
Jumper A&B
for 120 VAC.
(Domestic Models)