Carrier UC Open Installation manual

U
UC C O Op pe en n
I
In ns st ta al ll la at ti io on n a an nd d S St ta ar rt t- -u up p G Gu ui id de e
CARRIER CORPORATION ©2019
A member of the United Technologies Corporation family · Stock symbol UTX · Catalog No. 11-808-464-01 · 1/25/2019

Verify that you have the most current version of this document from
www.hvacpartners.com
or your local Carrier
office.
Important changes are listed in
Document revision history
at the end of this document.
CARRIER CORPORATION ©2019. All rights reserved throughout the world. i-Vu is a registered trademark of Carrier
Corporation. All other trademarks are the property of their respective owners.

Contents
Introduction.................................................................................................................................................................. 1
What is the UC Open controller? ........................................................................................................................1
Specifications ........................................................................................................................................................1
Safety considerations...........................................................................................................................................3
Installing the UC Open................................................................................................................................................. 4
Mounting the UC Open .........................................................................................................................................4
Wiring the UC Open for power ............................................................................................................................5
To wire for power................................................................................................................................... 5
Addressing the UC Open ......................................................................................................................................5
Wiring for communications.................................................................................................................................6
Wiring specifications for BACnet MS/TP and ARC156........................................................................ 6
To wire the controller to the BACnet network ...................................................................................... 7
Wiring inputs and outputs ...................................................................................................................................7
Input wiring specifications .................................................................................................................... 8
Inputs ..................................................................................................................................................... 8
Binary outputs ....................................................................................................................................... 8
To wire inputs and outputs ................................................................................................................... 9
Wiring devices to the UC Open's Rnet port.................................................................................................... 11
Rnet wiring specifications...................................................................................................................11
To wire ZS sensors to the controller...................................................................................................11
To wire the Wireless Adapter for wireless sensors............................................................................12
To wire an Equipment Touch to the UC Open....................................................................................14
To wire the TruVu™ ET Display ...........................................................................................................15
Installing the UC Open into the i-Vu® application ........................................................................................ 16
Local access to the UC Open ....................................................................................................................................18
Troubleshooting .........................................................................................................................................................19
LED's .................................................................................................................................................................... 19
Serial number..................................................................................................................................................... 20
To restore defaults............................................................................................................................................. 20
To replace the UC Open's battery.................................................................................................................... 21
Compliance ................................................................................................................................................................22
FCC Compliance................................................................................................................................................. 22
CE Compliance ................................................................................................................................................... 22
BACnet Compliance........................................................................................................................................... 22
Appendix A: UC Open wire lists.................................................................................................................................23
UC Open wire list................................................................................................................................................ 23
Document revision history ........................................................................................................................................24

UC Open CARRIER CORPORATION ©2019
Installation and Start-up Guide All rights reserved
1
What is the UC Open controller?
The UC Open is a general purpose controller that provides the communications circuitry, non-volatile memory, and
removable screw terminals for I/O connections.
Specifications
Driver drv_ucopen_std
Maximum number of control
programs*
10
Maximum number of
BACnet objects*
1050
Introduction

Introduction
UC Open CARRIER CORPORATION ©2019
Installation and Start-up Guide All rights reserved
2
Maximum number of third-
party integration points
using Snap*†
10
* Depends on available memory
† BACnet third-party integration points are not counted.
Power 24 Vac ±10%, 50–60 Hz
20 VA power consumption
26 Vdc (25 V min, 30 V max)
Single Class 2 source only, 100 VA or less
BACnet Port For communication with the controller network using BACnet ARC156 (156
kbps) or BACnet MS/TP (9600 bps – 76.8 kbps)
Rnet port •Supports up to 15 wireless and/or ZS sensors, and one Equipment Touch or
TruVu™ ET Display
•Supplies 12 Vdc/210 mA power to the Rnet at an ambient temperature of
77°F (25°C) with a 24 Vac nominal power source.
NOTE Ambient temperature and power source fluctuations may reduce the
power supplied by the Rnet port.
NOTE
If the total power required by the sensors on the Rnet exceeds the power
supplied by the Rnet port, use an external power source. The Wireless Adapter,
Equipment Touch, or TruVu™ ET Display must be powered by an external power
source. See the specifications in each device's Installation and Start-up Guide to
determine the power required.
Local Access port For system start-up and troubleshooting using Field Assistant
Inputs 6 inputs configurable for thermistor or dry contact.
1 and 2 are also configurable for 0–5 Vdc sensors.
NOTE
Input 5 has a maximum temperature of 140°F (60°C).
Input resolution 10 bit A/D
Binary outputs 5 binary outputs, dry relay contacts rated at 1 A max. @ 24 Vac/Vdc, configured
normally open
Output resolution 10 bit D/A
Real time clock Battery-backed real time clock keeps track of time in the event of a power failure
Battery 10-year Lithium CR2032 battery retains the following data for a maximum of
10,000 hours during power outages: control programs, editable properties,
schedules, and trends.
Protection Built-in surge and transient protection for power and communications in
compliance with EN61000-6-1.
Incoming power and network connections are protected by non-replaceable
internal solid-state polyswitches that reset themselves when the condition that
causes a fault returns to normal.
The power, network, input, and output connections are also protected against
transient excess voltage/surge events lasting no more than 10 msec.
CAUTION
To protect against large electrical surges on serial EIA-485
networks, place a PROT485 at each place wire enters or exits the building.
Status indicators LEDs indicate status of communications, running, errors, and power.

Introduction
UC Open CARRIER CORPORATION ©2019
Installation and Start-up Guide All rights reserved
3
Environmental operating
range
0 to 130°F (-18 to 54°C), 0 to 90% relative humidity, non-condensing
Storage temperature range -24 to 140°F (-30 to 60°C), 0 to 90% relative humidity, non-condensing
Physical Rugged GE C2950HF Cycoloy plastic
Overall dimensions A:
B:
5-5/8 in. (14.3 cm)
5-1/8 in. (13 cm)
Mounting dimensions C:
D:
E:
5-1/4 in. (13.3 cm)
2-9/16 in. (6.5 cm)
3/16 in. (.5 cm)
Panel depth 2 in. (51 mm)
Weight 0.6 lbs (0.27 kg)
BACnet support Conforms to the BACnet Advanced Application Controller (B-AAC) Standard
Device Profile as defined in ANSI/ASHRAE Standard 135-2012 (BACnet) Annex
L, Protocol Revision 9
Listed by UL-916 (PAZX), cUL-916 (PAZX7), FCC Part 15-Subpart B-Class A, CE
Safety considerations
WARNING
Disconnect electrical power to the UC Open before wiring it. Failure to follow this warning could
cause electrical shock, personal injury, or damage to the controller.

Installing the UC Open
UC Open CARRIER CORPORATION ©2019
Installation and Start-up Guide All rights reserved
4
1 Mount the controller. (page 4)
2 Wire the controller for power. (page 5)
3 Set the controller's address. (page 5)
4 Wire the controller to the BACnet MS/TP or BACnet ARC156 network (page 6).
5 Wire inputs and outputs (page 7).
6 Wire devices to the controller's Rnet port. (page 11)
Mounting the UC Open
WARNING
When you handle the UC Open:
•Do not contaminate the printed circuit board with fingerprints, moisture, or any foreign material.
•Do not touch components or leads.
•Handle the board by its edges.
•Isolate from high voltage or electrostatic discharge.
•Ensure that you are properly grounded.
Screw the UC Open into an enclosed panel using the mounting slots on the coverplate. Leave about 2 in. (5 cm)
on each side of the controller for wiring. Mounting hole dimensions 5 1/4" (13.3 cm) between mounting slot
center lines.
Installing the UC Open

Installing the UC Open
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5
Wiring the UC Open for power
WARNING
Do not apply line voltage (mains voltage) to the controller's ports and terminals.
CAUTIONS
•The UC Open is powered by a Class 2 power source. Take appropriate isolation measures when mounting it in
a control panel where non-Class 2 circuits are present.
•Carrier controllers can share a power supply as long as you:
•Maintain the same polarity.
•Use the power supply only for Carrier controllers.
To wire for power
1 Remove power from the power supply.
2 Pull the screw terminal connector from the controller's power terminals labeled
Gnd
and
Hot
.
3 Connect the transformer wires to the screw terminal connector.
NOTE
If using a grounded transformer, connect the ungrounded lead to the
Hot
terminal to avoid damaging
the transformer.
4 Apply power to the power supply.
5 Measure the voltage at the UC Open’s power input terminals to verify that the voltage is within the operating
range of 21.6–26.4 Vac.
6 Insert the screw terminal connector into the UC Open's power terminals.
7 Verify that the
Power
LED is on and the
Run
LED is blinking.
Addressing the UC Open
You must give the UC Open an address that is unique on the network. You can address the UC Open before or
after you wire it for power.
1 If the UC Open has been wired for power, pull the screw terminal connector from the controller power
terminals labeled
Gnd
and
Hot
. The controller reads the address each time you apply power to it.

Installing the UC Open
UC Open CARRIER CORPORATION ©2019
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2 Using the rotary switches, set the controller address. Set the
Tens
(
10's
) switch to the tens digit of the
address, and set the
Ones
(
1's
) switch to the ones digit.
EXAMPLE
If the controller’s address is 25, point the arrow on the
Tens
(
10's
) switch to 2 and the arrow on
the
Ones
(
1's
) switch to 5.
10's
1's
1
3
4
5
2
7
8
9
6
0
1
3
4
5
2
7
8
9
6
0
CAUTION
The factory default setting is
00
and must be changed to successfully install your UC Open.
Wiring for communications
The UC Open communicates using BACnet on the following types of network segments:
•MS/TP communicating at 9600 bps, 19.2 kbps, 38.4 kbps, or 76.8 kbps
•ARC156 communicating at 156 kbps
NOTE
For more networking details, see the Open Controller Network Wiring Installation Guide.
Wiring specifications for BACnet MS/TP and ARC156
Cable: 22 AWG or 24 AWG, low-capacitance, twisted, stranded, shielded copper wire
Maximum length: 2000 feet (610 meters)
WARNING
Do not apply line voltage (mains voltage) to the controller's ports and terminals.

Installing the UC Open
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To wire the controller to the BACnet network
1 Pull the screw terminal connector from the UC Open's power terminals labeled
24 Vac
and
Gnd
(
Return
).
2 Check the communications wiring for shorts and grounds.
3 Connect the communications wiring to the controller’s screw terminals labeled
Net +
,
Net -
, and
Shield
.
NOTE
Use the same polarity throughout the network segment.
4 Set the communication type and baud rate.
For...
Set Communications
Selection jumper to...
Set DIP switches 1 and 2 to...
Set DIP switches 3 and 4 to...
MS/TP
BACnet MS/TP
The appropriate baud rate. See the
MS/TP Baud
diagram on the
controller.
Off/Off
ARC156
BACnet ARC156
N/A. Baud rate will be 156 kbps
regardless of the DIP switch
settings.
Off/Off
NOTE
Use the same baud rate for all controllers on the network segment.
5 Wire the controllers on a BACnet MS/TP or BACnet ARC156 network segment in a daisy-chain configuration.
6 If the UC Open is at either end of a network segment, connect a BT485 to the UC Open.
7 Insert the power screw terminal connector into the UC Open's power terminals.
8 Verify communication with the network by viewing a Module Status report in the i-Vu® interface.
Wiring inputs and outputs
WARNING
Do not apply line voltage (mains voltage) to the controller's ports and terminals.
See Appendix A (page 23) to print a blank wire list.

Installing the UC Open
UC Open CARRIER CORPORATION ©2019
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Input wiring specifications
Input
Maximum length
Minimum gauge
Shielding
0–5 Vdc 500 feet
(152 meters)
22 AWG 100 feet
(30.4 meters) unshielded
100 - 500 feet shielded
Thermistor
Dry contact
Pulse counter TLO
500 feet
(152 meters)
22 AWG 100 feet
(30.4 meters) unshielded
100 - 500 feet shielded
ZS sensors
Wireless Adapter for
wireless sensors
Equipment Touch
TruVu™ ET Display
See Wiring devices to the UC Open's Rnet port (page 11).
Inputs
The UC Open has inputs that accept the following signal types.
These
inputs...
Support this signal
type...
Description
All Thermistor
Precon type 2 (10 kOhm at 77°F/25°C)
Input voltage for IN-5: 1 to 2.52 Vdc
Input voltage for all other inputs: 0.33 to 2.52 Vdc
All Dry contact A 3.3 Vdc wetting voltage detects contact position, resulting in a 0.3 mA
maximum sense current when the contacts are closed.
IN-1, IN-2 0–5 Vdc The input impedance of the UC Open is approximately 30 kOhm.
All Pulse counter Pulse counting up to 4 pulses per second.
Minimum pulse width (on or off time) required for each pulse is 100
msec.
Binary outputs
The UC Open has 5 binary outputs. You can connect each output to a maximum of 24 Vac/26 Vdc. Each output is
a dry contact rated at 1 A, 24 V maximum and is normally open.
To size output wiring, consider the following:
•Total loop distance from the power supply to the controller, and then to the controlled device
NOTE
Include the total distance of actual wire. For 2-conductor wires, this is twice the cable length.
•Acceptable voltage drop in the wire from the controller to the controlled device
•Resistance (Ohms) of the chosen wire gauge
•Maximum current (Amps) the controlled device requires to operate

Installing the UC Open
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To wire inputs and outputs
1 Verify that the UC Open's power and communications connections work properly.
2 Pull the screw terminal connector from the controller's power terminals labeled
Gnd
and
Hot
.
3 Connect the input wiring to the screw terminals on the UC Open.
NOTES
○Connect the shield wire to the
GND
terminal with the ground wire.
○
IN-5
and
IN-6
share the
GND
terminal above
IN-5
.

Installing the UC Open
UC Open CARRIER CORPORATION ©2019
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4 Set the appropriate jumpers on the UC Open.
To use...
For...
IN-1 or IN-2 Thermistor
Dry contact
0–5 Vdc
Set jumpers
IN-1
or
IN-2
to the type of signal the input will
receive.
All Thermistor
Dry contact
Verify the
IN-5
jumper is on.
Rnet Port ZS sensors
Wireless Adapter for
wireless sensors
Equipment Touch
TruVu™ ET Display
Verify that the
Rnet
jumper to
Rnet
.
5 Connect the binary output wiring to the screw terminals on the UC Open and to the controlled device.
6 Insert the power screw terminal connector into the UC Open's power terminals.

Installing the UC Open
UC Open CARRIER CORPORATION ©2019
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11
Wiring devices to the UC Open's Rnet port
The Rnet communicates at a rate of 115 kbps and should be wired in a daisy-chain or hybrid configuration.
Supports up to
•15 wireless and/or ZS sensors (5 per control program)
•One Equipment Touch
•One TruVu™ ET Display
NOTES
•ZS sensors, a Wireless Adapter, and an Equipment Touch can share the Rnet, but not SPT sensors.
•The Wireless Adapter, Equipment Touch, or TruVu™ ET Display must be powered by an external power source.
Rnet wiring specifications
NOTE
Use the specified type of wire and cable for maximum signal integrity.
Description 4 conductor, shielded or unshielded, CMP, plenum rated cable
Conductor 22 AWG (7x0096) bare copper if Rnet has only sensors
Maximum length 500 feet (152 meters)
Insulation Low-smoke PVC (or equivalent)
Color Code Black, white, green, red
Shielding If shielded, Aluminum/Mylar shield (100% coverage) with TC drain wire, terminated
at controller
UL temperature rating 32–167°F (0–75°C)
Voltage 300 Vac, power limited
Listing UL: NEC CL2P, or better
To wire ZS sensors to the controller
ZS Sensors are thermistor-based temperature sensors that may optionally sense humidity, CO2, or VOC. ZS
Sensors are wired to the Rnet port on i-Vu® Open controllers. You can use the following ZS sensors:
•ZS Standard
•ZS Plus
•ZS Pro
•ZS Pro-F

Installing the UC Open
UC Open CARRIER CORPORATION ©2019
Installation and Start-up Guide All rights reserved
12
NOTES
•The ZS CO2 model uses 190 mA during sample period. Use auxiliary 12 Vdc, unless it is the only device on
the Rnet port.
•A control program can use no more than 5 ZS Sensors
•SPT sensors cannot share the Rnet with other devices.
•For detailed instructions, see the ZS Sensor Installation Guide.
1 Remove power from the UC Open.
2 Partially cut, then bend and pull off the outer jacket of the Rnet cable(s). Do not nick the inner insulation.
Strip about .25 inch (.6 cm) of the inner insulation from each wire.
Outer Jacket
Inner insulation
.25 in.
(.6 cm)
3 Wire each terminal on the sensor to the same terminal on the controller. See diagram below.
NOTE
Carrier recommends that you use the following Rnet wiring scheme:
Connect this wire...
To this terminal...
Red
Black
White
Green
+12V
Rnet-
Rnet+
Gnd
4 Apply power to the UC Open.
To wire the Wireless Adapter for wireless sensors
WARNING
Do not apply line voltage (mains voltage) to the Wireless Adapter.
The Carrier wireless sensors are available in 868, 902, and 928 MHz radio frequency. The sensors are thermistor-
based temperature sensors that may optionally sense humidity.
Wireless sensors communicate through a Wireless Adapter, which is wired to the Rnet port of the controller.
REQUIREMENTS
•A v6.5 or later i-Vu® system
•v6-xx-xxx or later controller drivers

Installing the UC Open
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To configure the control program for the desired user interaction with the sensor, see the Wireless Sensors
Application Guide. For detailed instructions, see the Wireless Sensors Installation Guide.
To wire, power, and mount the Wireless Adapter
NOTES
•The Wireless Adapter requires a 24 Vac power supply. It is not powered by the Rnet.
•If the Wireless Adapter will be:
○Daisy-chained on the Rnet with ZS sensors, an Equipment Touch, or TruVu™ ET Displayuse the standard
4-conductor Rnet wiring.
○The only device on the Rnet, you can use a 3-conductor cable instead of the standard 4-conductor Rnet
cable.
1 Turn off the power to the controller that the Wireless Adapter will be wired to.
2 Partially cut, then bend and pull off the outer jacket of the Rnet cable(s). Do not nick the inner insulation.
Inner insulation
Outer jacket
Foil shield
.25 in.
(.6 cm)
Shield wire
3 Strip about 0.25 inch (0.6 cm) of the inner insulation from each wire.
4 Wire the
Rnet +
,
Rnet -
, and
Gnd
terminals on the controller's
Rnet
port to the terminals of the same name on
the Wireless Adapter's Rnet connector.
NOTE
If using shielded wire, connect the shield wire and the ground wire to the
Gnd
terminal.
5 Wire the 24 Vac external power supply to the Wireless Adapter's power connector.
6 Mount the Wireless Adapter by inserting 2 screws through the mounting tabs on each end of the Wireless
Adapter.
7 Apply power to the external power supply.
8 Verify that the LED on top of the Wireless Adapter is blinking. See "LED" below.
9 Turn on the controller's power.

Installing the UC Open
UC Open CARRIER CORPORATION ©2019
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14
LED
The blue LED on the top of the Wireless Adapter indicates the following:
If the LED is...
Then the device...
Off Is not powered or there is a problem.
Blinking Is working properly.
Steadily on Has a problem. Do one of the following:
•Cycle power to the device.
•Insert a small screwdriver or paper clip into the hole next to the LED to reboot the
device.
To wire an Equipment Touch to the UC Open
NOTES
•The Equipment Touch requires a 24 Vac power supply. It is not powered by the Rnet.
•If the Equipment Touch will be:
○Daisy-chained on the Rnet with ZS sensors or a Wireless Adapter, use the standard 4-conductor Rnet
wiring and follow the wiring instructions To wire ZS sensors to the UC Open (page 11).
○The only device on the Rnet, you can use a 2-conductor cable instead of the standard 4-conductor Rnet
cable and follow the instructions below.
•For complete Equipment Touch installation instructions including wiring diagrams, see the Equipment Touch
Installation and Setup Guide.
CAUTION
The UC Open can share a power supply with the Carrier controller as long as:
•The power supply is AC power.
•You maintain the same polarity.
•You use the power source only for Carrier controllers.
1 Turn
off
the UC Open's power.
2 Partially cut, then bend and pull off the outer jacket of the cable. Do not nick the inner insulation.
3 Strip about 0.25 inch (0.6 cm) of the inner insulation from each wire.

Installing the UC Open
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4 Wire the UC Open's
Rnet+
and
Rnet-
terminals to the terminals of the same name on the Equipment Touch's
connector.
NOTE
If using shielded wire, connect the shield wire and the ground wire to the
Gnd
terminal.
5 Turn
on
the UC Open's power.
6 Turn on the Equipment Touch.
To wire the TruVu™ ET Display
WARNING
Do not apply line voltage (main) - 24 Vdc power only.
Wiring power
Wire the TruVu™ ET Display
24V DC
connector to the 24 Vdc power supply using 2-conductor 18 AWG wire.
Maximum distance 100 feet (30 meters).
CAUTION
The TruVu™ ET Display can share a power supply with the Carrier controller as long as:
•The power supply is DC power.
•You maintain the same polarity.
•You use the power source only for Carrier controllers.

Installing the UC Open
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16
Wiring communication
1 Turn off the UC Open's power.
2 Wire the TruVu™ ET Display's
RS485
connector to the <ALCProduct>'s
Rnet
port,
Gnd
to
Gnd
,
+
to
Rnet +
,
-
to
Rnet -
using 2-conductor 22 AWG wire with a maximum distance of 500 feet (152 meters).
3 Turn on the UC Open's power.
For complete TruVu™ ET Display installation instructions, see the TruVu™ ET Display Installation and Start-up
Guide.
Installing the UC Open into the i-Vu® application
You must complete the following procedures to successfully install your UC Open into an i-Vu® Control System.
Use the Help in the referenced software for detailed descriptions of these procedures.
EquipmentBuilder or Snap
1 Use EquipmentBuilder or Snap to create control program(s) for your UC Open.
2 If applicable, print the Sequence of Operation, which includes the points list.
NOTE
You can create a points list under
Reports
in the i-Vu® application or Field Assistant after installing
your control program.
This Installation Guide
1 Prepare a wire list using the points list. Refer to Appendix A (page 23).
2 Use the wire list and the following installation procedures to install and wire I/O points to your UC Open.
The i-Vu® or Field Assistant application
1 Upload the controller to the database by selecting the router in the navigation tree.
2 Select
Devices
>
Manage
tab.