Input and output chart (ultra-2) – Bunn -O-MATIC ULTRA-1 User Manual
Page 61
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Input and Output Chart (ULTRA-2)
J5 connector for liquid crystal display.
J2 connector for touch pad/ membrane switch (see touch pad pin out test).
J12 connector for models with Autofill option.
J13 connector for Main harness
PIN
NUMBER
WIRE COLOR
AND GAUGE
FUNCTION
COMPONENT
VOLTAGE
1
Red/Black 18
Output
Right Auger Motor
120VAC
2
Brown/White 18
Output
Left Auger Motor
120VAC
3
Brown/Black 18
Output
Left Auger Motor
120VAC
4
Black 18
Supply
PC Board
120VAC
5
White 18
Neutral
PC Board
Neutral
6
Not used
Not used
Not used
Not used
7
Violet 18
Output/Switched
Lamp Relay
-12VDC
8
White/Blue 18
Supply
PC Board
12VAC
9
White/Black 22
Board Ground
Sensors
-5VDC
10
Yellow 22
Input/Signal
Hot Gas Temp
*
11
Blue 22
Output
Torque Sensors
5VDC
12
White/Black 22
Output
Torque Sensors
5VDC
13
White/Red 18
Output
Right Auger Motor
120VAC
14
Gray 18
Output
Condenser Fan
120VAC
15
Brown 20
Output
Left Solenoid
120VAC
16
Red 20
Output
Right Solenoid
120 VAC
17
Orange 18
Output
Compressor Relay
120VAC
18
Not used
Not used
Not used
Not used
19
Blue/Black 18
Output
Lamp Relay
+12VDC
20
White/Black 18
Supply
PC Board
12VAC
21
Tan 22
Input/Signal
Left Temp Sensor
*
22
Pink 22
Input/Signal
Right Temp
Sensor
*
23
White/Gray 22
Input/Signal
Left Torque
Sensor
0 or 5VDC
24
White/Green 22
Input/Signal
Right Torque
Sensor
0 or 5VDC
*With sensor disconnected you will read +5VDC, but when connected, voltage will
vary according to temperature. To check sensor, see repair section.
J1 connector - black is TIC board ground and white is data wire.
41084 102709