Johnson Controls UNT1100 Series User manual

Table of Contents
Unitary (UNT) Controller 1100
Series User’s Guide
Chapter 1 Using this Guide ........................................................1-1
Introduction......................................................................................................1-1
Key Concepts...................................................................................................1-2
Chapter Organization.....................................................................................................1-2
Chapter 2 Introduction to the UNT1100 Series ..................................2-1
Introduction......................................................................................................2-1
Key Concepts...................................................................................................2-2
UNT1100 Series Operation............................................................................................2-2
Related Information........................................................................................................2-4
Standards Compliance...................................................................................................2-4
Chapter 3 Configuring the UNT1100 Series .......................................3-1
Introduction......................................................................................................3-1
Key Concepts...................................................................................................3-2
HVAC PRO Configuration Tool......................................................................................3-2
Bench Testing................................................................................................................3-2
Procedure Overview........................................................................................3-3
Detailed Procedures........................................................................................3-4
Defining a UNT1100 in a Metasys Network ...................................................................3-4
© Johnson Controls, Inc. www.johnsoncontrols.com

UNT Controller
2
Defining a UNT1100 in N30 Software............................................................................3-7
Chapter 4 Installing the UNT1100 Series............................................4-1
Introduction......................................................................................................4-1
Key Concepts...................................................................................................4-2
Design Considerations...................................................................................................4-2
Tools Needed for Installation .........................................................................................4-2
Environmental Information .............................................................................................4-3
Controller Physical Dimensions .....................................................................................4-3
Power Line Wiring Transient Noise Precautions............................................................4-3
I/O and Communications Wiring Transient Noise Precautions ......................................4-4
Detailed Procedures........................................................................................4-6
Mounting the UNT in an Enclosure Kit...........................................................................4-6
Installing the UNT1100 in an AS-ENC100-0 Enclosure Kit............................................4-6
Installing the UNT1100 in an EWC10 Enclosure Kit......................................................4-7
Troubleshooting..............................................................................................4-8
Tools Needed.................................................................................................................4-8
Installation Checkout......................................................................................................4-8
Isolation and Grounding UNT1100 Series without an Earth Ground Connection ..........4-9
Chapter 5 Wiring the UNT1100 Series ................................................5-1
Introduction......................................................................................................5-1
Key Concepts...................................................................................................5-2
Power Source and Loads...............................................................................................5-2
Wiring Precautions.........................................................................................................5-4
Grounding and Isolation for UNT1100 ...........................................................................5-5
Terminal Designations ...................................................................................................5-9
Analog Inputs...............................................................................................................5-13
Binary Inputs................................................................................................................5-15
Binary Outputs (Relay Jumper Information).................................................................5-15
Analog Outputs ............................................................................................................5-16
Zone Bus......................................................................................................................5-16
Wiring to Unit Mounted Controls—UNT1100 ...............................................................5-16

Table of Contents 3
Wiring to RLY050/002 Relays......................................................................................5-16
Wiring Sensors and Actuators......................................................................................5-18
Detailed Procedures......................................................................................5-23
Connecting HE-6300 Humidity Sensor ........................................................................5-23
Troubleshooting............................................................................................5-24
Internal Thermal Protection..........................................................................................5-24
Chapter 6 Downloading and Commissioning the UNT1100 Series..6-1
Introduction......................................................................................................6-1
Key Concepts...................................................................................................6-2
Commissioning Procedures ...........................................................................................6-2
Troubleshooting..............................................................................................6-3
Chapter 7 Ordering the UNT1100 Series ............................................7-1
Introduction......................................................................................................7-1
Key Concepts...................................................................................................7-2
Ordering Information for Johnson Controls....................................................................7-2
Ordering Information for Outside Vendors .....................................................................7-5
Specifications.................................................................................................................7-7
Appendix A Application Examples..................................................... A-1
Introduction..................................................................................................... A-1
Key Concepts.................................................................................................. A-2
Fan Coil......................................................................................................................... A-2
Unit Vent .......................................................................................................................A-4
Packaged Rooftop......................................................................................................... A-6
Heat Pump.................................................................................................................... A-8
Lead/Lag Pump Sequence.......................................................................................... A-10
Appendix B Precautions for Rooftop Installations...........................B-1
Introduction..................................................................................................... B-1

UNT Controller
4
Key Concepts.................................................................................................. B-2
Environmental Information ............................................................................................ B-2
Electrical Noise in Rooftop Units................................................................................... B-2
Considerations for Gas Ignitions................................................................................... B-2
Considerations for Specific Rooftop Units..................................................................... B-5
Procedure Overview....................................................................................... B-7
Detailed Procedures....................................................................................... B-8
Installing a UNT1100 in a Rooftop Unit......................................................................... B-8

Application Specific Controllers Technical Manual 1-1
Chapter 1
Using this Guide
Introduction
The Unitary (UNT) Controller 1100 Series User’s Guide provides
information about how to use the UNT1100 series controller. This
chapter outlines the guide’s organization and content.
© January, 2001 Johnson Controls, Inc. www.johnsoncontrols.com
Code No. LIT-63630831

1-2 UNT Controller
Key Concepts
Chapter Organization
Each chapter of this Unitary (UNT) Controller 1100 Series User’s
Guide is divided into five sections as described in Table 1-1.
Table 1-1: Chapter Organization
Section Description
Introduction Briefly outlines the contents of the chapter.
Key Concepts Describes background information necessary
to perform or understand specific tasks.
Procedure Overview Describes general steps for performing the
tasks described in the Detailed Procedures
section.
Detailed Procedures Describes in detail the steps needed to
complete specific tasks described within the
chapter. This section is geared toward users
who are new to the UNT1100 controller.
Troubleshooting Presents potential problems and solutions.
If a particular section is not needed for a chapter, it is not included.
For example, in this chapter, the Detailed Procedures section is not
required.

Application Specific Controllers Technical Manual 2-1
Chapter 2
Introduction to the UNT1100
Series
Introduction
The UNT1100 Series is an electronic device for digital control of
packaged air handling units, unit ventilators, fan coils, heat pumps, and
other terminal units serving a single zone or room. It also can be
configured as a generic Input/Output (I/O) device for basic point
monitoring applications when used within a MetasysNetwork. This
chapter gives an overview of the product.
© January, 2001 Johnson Controls Inc. www.johnsoncontrols.com
Code No. LIT-63630832

2-2 UNT Controller
Key Concepts
UNT1100 Series Operation
You can easily configure point inputs and outputs, and software
features to control a wide variety of Heating, Ventilating, and Air
Conditioning (HVAC) equipment applications. The UNT1100 may be
used as a standalone controller or connected to the Metasys Network
through a Network Control Module (NCM), N30, N31, or
Companionsupervisory controller.
When connected to the Metasys Network, the UNT1100 provides all
point control information to the rest of the network. The devices
communicate through an N2 Bus. For a smaller facility, the UNT1100
can function as a standalone controller. Figure 2-1 is an example of the
UNT1100 Series controller.
UNT1100b
123456
CTS206-6TB40
O
N
123456
CTS206-6TB40
O
N
SRC
OPEN
BO OUT
Jumper
Options
AI1
W1 W2
AI2
W5 W6
AI3
W10 W11
AI4 AI5 AI6
BO2
W40 W41 W44
BO3
W34 W35 W39
BO4
Jumper
AO1
W3 W4
BO1
W45 W50 W51
BI6 BI7
W47 W48 W53
BI3 BI4
W42 W43 W46
BI1 BI2
W36 W37 W38
W49
SRC
W52
W56
W55
W27 W31 W32W26W25
PWR
W12 W15 W16 W17 W21 W22
PWR IN: 24VAC, 2AMP, CLASS 2
BIN OUT: 24VAC, 2A, CLASS 2, PILOT DUTY
AS-UNT11xx
AO4AO3AO2
W23W20W18W14W8 W9
AO1
AOCM
AO2
AOCM
AO3
AOCM
AO4
AOCM
W28 W29 W30
24VACCOM
R
AI1
AICM
AI2
AICM
AI3
AICM
AI4
AICM
AI5
AICM
AI6 AICM
+15VDC
COM
+15VDC
ZBUS
BISRC
BI1
BI2
BISRC
BI3
BI4
BISRC
Jumper Jumper Jumper
AI Switches Job Information N2 Address
N2+
N2-
Ref
XMIT
12345678
ADDR 0 = A LL OPEN
OPEN
(UP)
128
64
32
16
8
4
2
1
RECV
BI6
BISRC
BI7
RY10029 Rev J
R
Figure 2-1: UNT1100 Controller

Introduction to the UNT1100 Series 2-3
You can use the UNT1100 for unit ventilator, rooftop, heat pump, or
fan coil applications, or as a generic I/O multiplexer and I/O sideloop
control. Each has a different sequence of operation, all of which are
covered in the HVAC PRO User’s Manual (FAN 637.5).
The UNT1100 Series is available in different hardware sets to suit
different application needs. Table 2-1 lists the common features of the
different hardware sets. Table 2-2 lists the differences by model.
Table 2-1: UNT1100 Series Hardware Characteristics -
Similarities Among Models
Characteristic Description
6 Analog Inputs  RTD temperature elements (1000 ohm nickel,
platinum, or silicon)
 Adjustable 0 to 2k ohm setpoint potentiometers
 0 to 10 VDC or 0 to 2 VDC transmitters
6 Binary Inputs  (6) 24 VAC input
 Momentary pushbutton from Zone Sensor for
temporary occupancy mode (BI5)
 BI 4 may be used as an accumulator input for
frequencies less than 2 Hz.
N2 Bus Isolated
Zone Bus  Light-Emitting Diode (LED) Indication
 8-pin phone jack on controller
 Removable screw terminal block
Operating
Temperature Rating -40 to 60°C (-40 to 140°F)
I/O Terminations Quick Connects (Spade Lugs)
24 VAC Power in
Termination Quick Connects (Spade Lugs)
Table 2-2: UNT1100 Series Hardware Characteristics —
Differences Among Models
Characteristic UNT1108 UNT1126 UNT1144
Analog Outputs:
0 to 10 VDC @ 10 mA None 2 4
Binary Outputs:
2A 24 VAC Pilot Relays
SPDT (Single-Pole,
Double-Throw)
8 6 4

2-4 UNT Controller
Related Information
Table 2-3 describes where to find information on items related to the
UNT1100 Series.
Table 2-3: Related Information
Description Document
Sales and Marketing
Information Unitary Controller (UNT) 1100 Series Product
Bulletin (LIT-635066) in the Metasys Network
Sales Resource Manual (FAN 635)
Using HVAC PROSoftware HVAC PRO User’s Manual (FAN 637.5)
Using the Operator Workstation Operator Workstation User’s Manual
(FAN 634)
Standards Compliance
The UNT1100 Series complies with the following standards:
 FCC Part 15, Subpart B, Class A
 IEEE 472
 IEEE 587 Category A
 UL 916, UL 864 (Listed)
 CSA C22.2 No.205
 EN50081-1 (EN55011 Class B)
 EN50082-2 (1995), (EN61000-4-2, EN50140 [1993], EN50204,
EN50141 [1993])
EN61000-4-4, EN50141
 UL873 (Recognized)
 UL94-5VA (Enclosure)

Application Specific Controllers Technical Manual 3-1
Chapter 3
Configuring the UNT1100 Series
Introduction
This chapter includes information about configuring the UNT1100
Series controller.
This section describes how to:
• define a UNT1100 in a Metasys Network
• define a UNT1100 in N30 software
© January, 2001 Johnson Controls, Inc. www.johnsoncontrols.com
Code No. LIT-63630833

3-2 UNT Controller
Key Concepts
HVAC PRO Configuration Tool
All UNT1100 series models require HVAC PRO software
(Release 8.01 or later). This software tool configures, commissions,
uploads, and downloads the UNT1100 Series database. Refer to the
HVAC PRO User’s Manual (FAN 637.5) for more information on
configuring the UNT1100 Series.
Bench Testing
We recommend verifying any new configuration by pulling a sample
of the UNT1100 shipment for bench testing and loading a job
configuration before all the controllers are mounted in the unit
cabinets.

Configuring the UNT1100 Series 3-3
Procedure Overview
Table 3-1: Configuring the UNT1100 Series
To Do This Follow These Steps:
Define a UNT1100 in a Metasys
Network In the Metasys Operator Workstation (OWS),
open the Network Map and define the
UNT1100 as a new object. Fill in the blank
UNT1100 Series Definition attribute fields as
required. Click Save to add the object to the
NCM database. Upload the NCM to make an
archive copy of the new object.
Define a UNT1100 in
N30 Software Refer to the Object Dictionary (FAN 694).

3-4 UNT Controller
Detailed Procedures
Defining a UNT1100 in a Metasys Network
To define a UNT1100 Series device object in a Metasys Network:
1. Go to the Network Map on the Operator Workstation (OWS) and
double-click a system name.
2. On the Item menu, click New. The Item New dialog box appears
(Figure 3-1).
3. Select Type/N2 devices in the Item New dialog box.
Figure 3-1: Item New Dialog Box itemnew
Note: The Hardware System and Hardware Object text fields are
not used for this object type.
4. Click OK.

Configuring the UNT1100 Series 3-5
5. Highlight UNT in the Add N2 Device dialog box as shown in
Figure 3-2.
Figure 3-2: Add N2 Device Dialog Box add_n2
6. Click OK.
7. Complete the attribute fields in the UNT Definition window as
shown in Figure 3-3.

3-6 UNT Controller
Figure 3-3: UNT Definition Window definition
Note: Fill in the blank UNT1100 Series Definition attribute fields
as required. Specify an N2 Device Address from 1 to 254.
You may accept or change the default values in the
remaining attribute fields. Table 3-2 explains the blank
attribute fields. The Operator Workstation User’s Manual
(FAN 634) describes the general procedures for entering and
modifying data.
Table 3-2: Blank UNT1100 Series Object Attributes
Attribute Description Entry Values . . .
Object Name Identifies the object (i.e., UNT1108).
The object name cannot be
duplicated in the system.
1 to 8 alphanumeric
characters
Expanded ID Further identifies the object
(i.e., Garage Level Heater) 0 to 24 alphanumeric characters (optional)

Configuring the UNT1100 Series 3-7
8. On the Item menu, select Save to save the new UNT1100 Series
object and add the object to the NCM database.
9. Upload the NCM to make an archive copy of the new object.
Refer to Uploading from the NCM in the Advanced User’s Guide
section in the Operator Workstation User’s Manual (FAN 634).
Defining a UNT1100 in N30 Software
To define a UNT1100 Series device object in N30 software, refer to
the Object Dictionary (FAN 694).

3-8 UNT Controller

Application Specific Controllers Technical Manual 4-1
Chapter 4
Installing the UNT1100 Series
Introduction
This chapter describes how to:
• mount the enclosure in an enclosure kit
• install the UNT1100 in an AS-ENC100-0 Enclosure Kit
• install the UNT1100 in an EWC10 Enclosure Kit
© January, 2001 Johnson Controls, Inc. www.johnsoncontrols.com
Code No. LIT-63630834

4-2 UNT Controller
Key Concepts
Design Considerations
The number and types of components (sensors and actuators) used
with the UNT1100 varies according to application. Analyze the
proposed installation for logical locations to place these devices, and
draw an inventory based on that study. Information on available
accessory devices is in the Ordering the UNT1100 Series
6363081johnson chapter of this user’s guide.
Decide how close the UNT can be to the air handling equipment, while
still allowing adequate room for installation and maintenance
accessibility. Also consider any existing power sources and
communication lines. Secure the controller vertically to a solid wall or
panel and not to any vibrating surface.
IMPORTANT: Do not mount the UNT1100 near high voltage or
electrically noisy devices. Refer to Appendix B:
Precautions for Rooftop
Installations6363081apndxaenviron.
IMPORTANT: For Underwriter’s Laboratories, Inc.®(UL) 864
installations, You must use only the XFR50 or
XPR100 transformers to power the UNT1100.
(24 VAC power to the BO leads only are excluded
from this requirement.)
Tools Needed for Installation
For a typical installation, you need the following:
• HVAC PRO software, Release 8.01 or later
• IBM®PC-compatible laptop computer
• Microsoft®Windows®AS-CBLPRO-2 (for Zone Bus
downloading, uploading, and commissioning) or MM-CVT101-0
(for N2 downloading, uploading, and commissioning)
• two screwdrivers (1/8 in. and 1/4 in. flat-blade)
• drill
• (optional) AS-ZTU100-1 (Zone Terminal unit)
Note: The AS-ZTU100-1 supports the AS-UNT11xx models, as
well as previous models of UNT: the AS-UNTxxx-0 and
AS-UNTxxx-1 models.