Johnson Controls UNT110-1 User Manual

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UNT Controller—Unitary (UNT) Controller
The six analog inputs, the +15 VDC power supply, and their commons
occupy the lower left corner of the terminal strip. These inputs may be of
two types: resistive or voltage. The UNT processes and controls the
configured control strategy. It reads the analog inputs through the analog
input DIP switches located directly above the analog input terminals.
Use the DIP switches and HVAC PRO for Windows to select the type of
analog input. Use the T position on SW1 and the 2V position on SW2 for
all temperature sensors and setpoint potentiometers. Use the V position on
SW1 and the 10V position on SW2 for all active voltage transmitters
(see Figure 9). For humidity applications using 3-wire voltage transmitters,
such as the HE-6300 Series, use the 15 VDC power supply terminals next
to the inputs for AI 6. Table 9 shows each configuration.
Table 9: Analog Input Configurations
AI Type Range Switch Position
Voltage (V)
0 to 2 VDC SW1 to Position V and SW2 to
Position 2V
Voltage (V)
0 to 10 VDC SW1 to Position V and SW2 to
Position 10V
Resistance/
Temperature (T)
1,000 ohm Nickel, Platinum,
Silicon, 2k ohm Potentiometer
SW1 to Position T and SW2 to
Position 2V
The UNT has two sets of DIP switches. One set is for configuring the
analog input points, and the other set is for setting the controller address.
Use Tables 9 and 10 to set the SW1 and SW2 analog input DIP switches.
Refer to the Networking the Controller section of this technical bulletin
for instructions on setting the N2 address DIP switches.
1 2 3 4 5 6
1 2 3 4 5 6 7 8
BINARY INANALOG I NPUTS BINARY OUTPUTS
TM
BINARY INPUT
ANALOG I NPUTS
1 2 3 4 5 6 1 2 3 4
ANALOG INPUTS
CO MMO N
+15VDC
TO
ZONE
STAT
BI NARY OU TPUT
24VAC
1 2 3 4 5 6
+15VDC
24VAC
CO MMON CO MMON
REF
N2-
N2+
24VAC
COM
ZBU S
Z BUS
DSI
7 8
TRA CS
24 VAC
1 2 3 4 5 6
COMMO N CO MMON CO MMON
Analog Input Switches
aiswtch2
ANALOG
V
T2V
10V
SW2
SW1
1 2 3 4 5 6
O
N
1 2 3 4 5 6
O
N
Figure 9: Setting the Analog Input DIP Switches
Analog Inputs
Setting the
Analog DIP
Switches

Johnson Controls UNT110-1 Specifications

General

Brand	Johnson Controls
Model	UNT110-1
Category	Controller
Language	English