Bunn -O-MATIC ULTRA-1 Service And Repair Manual page 59

Input and Output Chart (ULTRA-1)
J1 connector - black is TIC board ground and white is data wire.
J9 connector for liquid crystal display.
J10 connector for Main harness
PIN WIRE COLOR
NUMBER AND GAUGE
1 White/Blue 18
2 Blue 22
3 Tan 22
4 White/Gray 22
5 White/Black 18
6 Not used
Not used
7
8 Brown/White 18
Brown/Black 18
9
10 Black 18
11 Yellow 22
12 Violet 18
13 Gray 22
14 Blue/Black 18
15 White/Black 22
16 Not used
17 White 18
18 Not used
19 Brown 22
Orange 18
20
*With sensor disconnected you will read +5VDC, but when connected, voltage will
vary according to temperature. To check sensor, see repair section.
J11 connector for touch pad/ membrane switch (see touch pad pin out test).
FUNCTION
- - - - - -
Output
Input/Signal
Output
- - - - - -
Not used
Not used
Output
Output
Supply
Input/Signal
Output/Switched
Output Condenser Fans
Output
Board Ground
Not used
Neutral
Not used
Output
Compressor Relay
Output
59
COMPONENT
Rectifier
Torque Sensor
Temp Sensor
Torque Sensor
Rectifier
Not used
Not used
Auger Motor
Auger Motor
PC Board
Hot Gas Temp
Lamp Relay
Lamp Relay
Sensors
Not used
PC Board
Not used
Solenoid
VOLTAGE
- - - - - -
5VDC
*
5VDC
- - - - - -
Not used
Not used
120VAC
120VAC
120VAC
*
12VDC
120VAC
+12VDC
5VDC
Not used
Neutral
Not used
120VAC
120VAC
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