Appendix A
Service Bulletin 0074
– NCC Electronic Temperature Control
Page 39
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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)
