Installation 
selections, the Output 1 (HEAT) and Output 2 (COOL) signals will be present both on the 
Auxiliary Output and on the two relays normally used for Time Duplex. 
 
Wiring the Controller 
Using the information contained in the model number, select the appropriate wiring 
diagrams from the composite wiring diagram below. Refer to the individual diagrams 
listed to wire the controller according to your requirements. 
L1
 
L2/N
 
4
 
5 
6 
7 
1
 
10 
11
 
12
 
13
 
14
 
15
 
16
 
17 
7
 
8
 
9
 
20
 
21 
22 
23 
24 
25
 
26
 
27
 
18 
19
 
See table for callout details
 
2
 
3
 
4
 
5
 
6
 
8
 
 
Figure 2-4  Composite Wiring Diagram 
 
Callout Details 
1  AC/DC Line Voltage Terminals. See Figure 2-5. 
2  Output 3 Terminals. See Figure 2-8 through Figure 2-14. 
3  Output 4 Terminals. See Figure 2-8 through Figure 2-14. 
4  Outputs 1 and 2 Terminals. See Figure 2-8 through Figure 2-14. 
5  Input #2 Terminals. See  Figure 2-7. 
6  Input #1 Terminals. See Figure 2-6. 
7  Aux. Output and Digital Inputs Terminals. See Figure 2-17.   
8  Communications Terminals. See Figure 2-15 and Figure 2-16. 
24  UDC3200 Universal Digital Controller Product Manual  12/04