Unitary Controller (UNT)
Contents
1. AHU f EE 0 0 ee aad 6 f N DX 9100 Controller EWC10 Enclosure UNT Controller eee RO Zone Terminal UNTCOMP Figure 3 UNT Controller in Companion System Application Specific Controllers Unitary Controller UNT 5 Application Flexibility The UNT11n and UNT12n Series with Quick Connects are packaged for convenient factory mounting by original equipment manufacturers or for field installations where Quick Connects are preferred The new UNT14n is packaged to accommodate field installations using screw terminations In addition points unused in the control scheme can be used in supervisory monitoring and control or standalone applications by the Metasys Network The UNT Controller offers a variety of zone sensor connection options that let you select the features you and your occupants need The simplest and most economical option is a solid state sensing element wired directly to the controller When this option is chosen all setpoint adjustments are made using the Operator Work2. Quick Connect lugs and crimping tool not required Easy to mount on any wall Lockable ready to go F lexible Hardware Packaging The Unitary Controller is available in different hardware that is the same is listed below hardware sets to suit environmental and Following that is a table describing the hardware application needs A list of the controller differences Table 1 Unitary Controller Hardware Characteristics Similarities 6 Analog Inputs RTD temperature elements 1000 ohm nickel platinum or silicon Adjustable 0 to 2K ohm setpoint potentiometers 0 to 5 VDC 1 to 5 VDC or 0 to 10 VDC transmitters 4 Binary Inputs 4 24 VAC input only 24 VAC provided 1 Momentary pushbutton from zone sensor for temporary occupancy mode BI 5 BI 4 may be used as an accumulator input for frequencies less than 2 Hz Zone Bus See Table 2 below Removable screw terminal block LED Indication 8 pin phone jack on controller 24 VAC Power in Termination Removable screw terminal block N2Bus ess sCsOY Removable screw terminal block electronically isolated circuitry Table 2 Unitary Controller Hardware Characteristics Differences oe UNT110 1 UNT111 1 UNT120 1 UNT121 1 UNT140 1 UNT141 1 Operating 32 to 140 F 32 to 140 F 40 to 140 40 to 140 F 32 to 140 F 32 to 140 F Temperature 0 to 60 C 0 to 60 C 40 to 60 C 40 to 60 C 0 to 60 C 0 to 60 C Rating Analog Outputs 0 to 10 VDC Bin
3. Subpart J Class A UL 916 UL 864 UL Listed and CSA Certified as part of the Metasys Network AS XFR100 or EN EWC15 0 AS ZTU100 1 AS ENC100 0 or EN EWC10 0 or EN EWC15 0 or BZ1000 7 AS CBLPRO 2 AS TBKIT 0 Kit consists of five of each plug type TE 6400 Series MM CVT101 0 The performance specifications are nominal and conform to acceptable industry standards For application at conditions beyond these specifications consult the local Johnson Controls office Johnson Controls Inc shall not be liable for damages resulting from misapplication or misuse of its products J HNSON CONTRSLS Controls Group 507 E Michigan Street P O Box 423 Milwaukee WI 53201 FAN 635 Metasys Network Sales Resource Manual Printed in U S A 8 Application Specific Controllers Unitary Controller UNT
4. for heating cooling Occ Unocc mode Unoccupied Control Setup and setback Ln l O C onclusion As either a member of the fully integrated The UNT Controller combines the best of system or as a standalone controller the UNT ease of setup and operation flexibility of Controller represents a way to optimize the application and precise control for comfort and operation of your HVAC equipment energy management Application Specific Controllers Unitary Controller UNT 7 S pecifications Product Ambient Operating Conditions Dimensions H x W x D Ambient Storage Conditions Power Requirements Shipping Weight Standards Compliance Agency Listings Accessories Order Separately Power Supply Zone Terminal Enclosure Kit HVAC PRO Interface N2 Plugs Power Plugs Replacement Kit Zone Sensors Converter Separate Controllers AS UNT110 1 AS UNT111 1 AS UNT120 1 AS UNT121 1 AS UNT140 1 AS UNT141 1 Pre mounted Controllers in an EWC10 enclosure with 50 VA transformer AS UNT110 101 AS UNT111 101 AS UNT140 101 AS UNT141 101 32 to 140 F 0 to 60 C and 40 to 140F 40 to 60 C for UNT12n 1 10 to 90 RH 6 5 in x 6 4 in x 2 2 in 165 x 163 x 56 mm without enclosure 9 in x 16 in x 7 5 in 229 x 406 x 191 mm with AS ENC100 enclosure 40 to 158 F 40 to 70 C 10 to 90 RH 24 VAC 50 60 Hz at 40 VA per typical system 1 4 Ib 0 64 kg IEEE 472 IEEE 518 IEEE 587 Category A FCC Part 15
5. ary Outputs 24 VAC Triacs 0 5 amps or 0 8 amps if total power is limited Low or High side common selectable Zone Bus See Additional 6 pin Additional 6 pin Table 1 above Phone Jack Phone Jack O Terminations i i i i Fixed Screw Fixed Screw Connects Connects Connects Connects Terminal Block Terminal Block Spade Lugs Spade Lugs Spade Lugs Spade Lugs Available UNT110 101 UNT111 101 UNT140 101 UNT141 101 pre mounted in EWC10 with 24 VAC 50 VA transformer 2 Application Specific Controllers Unitary Controller UNT Flexible Hardware Packaging The Unitary Controller can be configured to match most applications found in today s fast evolving marketplace The UNT is available in two different versions differing in their output point configuration Each of these two versions are available in models with Quick Connects spade lugs or screw terminations for input output points The versions with Quick Connects are also available in low temperature models for rooftop applications This allows you to economically select a controller to match the needed application C ontroller Enclosure Options The controller mounts easily to any surface using either direct mount or a controller enclosure The common packaging for the UNT Controller is in the ENC100 or EWC10 The UNT120 121 Controller must be installed in the BZ 1000 7 enclosure unless it is mounted within the enclosed low voltage elec
6. hvacUyS4 com A MechTronics Controls Company Metasys Network Sales Resource Manual 635 www hvacusa com Application Specific Controllers Section META SYS2 Phone 877 632 4876 Product Bulletin NX Issue Date 0295 Unitary Controller UNT The Metasys Unitary UNT Controller 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 can also be configured as a generic input output device for basic point monitoring applications when used within a Metasys Network You can easily configure point inouts and outputs and software features to control a wide variety of HVAC equipment applications You may use the UNT as a standalone controller or connected to the Metasys Network through a Network Control Module NCM or Companion Q Standalone Control System reliability Network Communications over N2 Bus Built in Control Program Library Isolated N2 Circuitry Removable N2 and 24 VAC Power Plugs Screw Terminals for I O Connections Available in Some Models Available Pre mounted in Single High EWC Enclosure with 50 VA Transformer 1995 Johnson Controls Inc Code No LIT 635065 Facility wide control efficiencies and cost effective sensor sharing No programming More reliable operation Allows disconnection of an individual controller without disrupting other controller connections
7. ified period of time i e go occupied for three hours when the switch is pressed oi p untpwer Figure 4 AS UNT1nn 101 Enclosure with 50 VA Transformer 6 Unitary Controller UNT Table 3 Applications and Options Application Classifications Software Options Primary Equipment Types Unit vents ASHRAE Cycle 1 ASHRAE Cycle 2 ASHRAE Cycle 3 ASHRAE Cycle W Heat pumps Water to air Air to air Packaged rooftops Fan coils Generic point multiplexer Economizer Changeover Strategies Dry bulb Outside air enthalpy Differential outside return air temperature Outside air and return air enthalpy comparison Binary input from external economizer Supervisory network command Mixed Air Control Strategies Proportional output to OA RA damper actuator Binary output to economizer actuator Zone bus output to OA RA damper actuator Heating Configuration Modulated single coil Staged electric heat 3 stage max Modulated common heating cooling coil Reversing valve logic for heat pumps Incremental Cooling Configuration Modulated single coil Staged DX 2 stage max Modulated common heating cooling coil Reversing valve logic for heat pumps Incremental Fan Start Stop Continuous operation Cycled with call
8. location Programming a UNT Controller is a simple matter of responding to a series of yes no and multiple choice questions and specifying setpoints and other parameters No previous software programming experience is required The UNT Controller has a library of proven control sequences and proportional integral algorithms that are automatically configured into a total system sequence of operation in response to your answers to the questions Once configured the UNT Controller s operating parameters such as setpoints and tuning parameters may be changed from any Metasys operator device Application Specific Controllers Unitary Controller UNT 3 Metasys Network Configuration As powerful as the UNT Controller is by itself Metasys Dynamic Data Access networking your facility benefits even more when UNT software available from the Network Control Controllers are part of a larger Metasys Network Unit makes all information from each UNT Each UNT Controller can connect to the Metasys Controller available throughout the facility N2 Bus Figure 2 Either a Network Control Unit Dynamic Data Access also makes sensor or Companion system can be programmed to values operating status and any other provide added energy management and parameter in the UNT Controller available to supervisory control capabilities including optimal operators anywhere in your facility start demand limiting load rolling runtime totalization and mo
9. re N1 LAN NUR TE NCU NCU U Operator Workstation A ILC e UNT e z Controller e A Be 000o e er a or a o amp gt S 00 gJ x DX 9100 Smem Controller ni amp J J J Le J J D o e UNT ms Controller J g J amp z 0000o E e o AA Wp Be J eco DS J x AHU i Controller NRO Z MN Zone Terminal UNTMTSYS Figure 2 UNT Controller in Metasys Network 4 Application Specific Controllers Unitary Controller UNT Metasys Companion Configuration Metasys Companion connects to the UNT energy management programs throughout the Controller over an independent N2 Bus devices on the bus Figure 3 User access is through the Companion System which implements built in PC Version Metasys Companion Companion Panel Version WD
10. station or Network Terminal on the Metasys Network or from the Zone Terminal or Companion system A second option provides the occupants in the zone the ability to adjust the setpoint to their preference within a restricted range established by you The user setpoint can be overridden by you at any time using the operator interface devices or application programs in the Network Control Unit This allows maximum energy savings while still allowing occupants some control over their environment A third option uses an occupancy sensor to automatically or manually set back or set up zone temperatures when no one is around This can further increase energy savings in individual offices or conference rooms In addition using the HVAC PRO for Windows software you can access sideloops that are separate from the main control logic See your HVAC PRO for Windows User s Manual for further explanation of this powerful feature Other options provide for control of room lighting as well as temperature turning lights on or off based on the occupancy sensor or scheduled commands issued from the network A Boost mode switch allows an occupant to temporarily provide extra cooling or heating which is useful for conference rooms that experience large heat load fluctuations You can choose to select a Temp Occ mode instead of the Boost mode Temp Occ mode switch allows an occupant to put the controller into an unscheduled occupied mode for a spec
11. trical compartment of the mechanical unit being controlled The UNT controller can be purchased pre mounted in an EWC10 enclosure including a 50 VA transformer 101 suffix Easy Monitoring and Diagnostics with the Zone Terminal AS ZTU100 1 The Zone Terminal ZT is a person controller interface developed as an easy to use controller adjustment and indication device The ZT is designed for the user who needs a straightforward method to monitor and adjust setpoints in an HVAC zone The ZT plugs into the TE 6400 Metastat or TE 6100 11 or 12 Zone Sensor to communicate with the UNT Controller Convenient Configuration Setup The UNT Controller doesn t need to be programmed in the traditional sense Instead the control algorithms and input output point assignments are configured with the use of the HVAC PRO for Windows software tool The HVAC PRO for Windows runs on a laptop computer plugged directly into the UNT Controller or into a jack at the room sensor or M100C Series Motor Actuator The jack is connected back to the UNT Controller over a 3 wire cable called a Zone Bus Programs loaded into the UNT Controller are saved in nonvolatile E PROM memory so there is no need to reload software after a loss of power A second option allows you to load the configuration from the laptop via the N2 Bus This option speeds up the initial loading and commissioning process by allowing you to load multiple controllers from one
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