Metasys Zoning Package Installation

Technical Bulletin Issue Date August 28, 2002 Metasys Zoning Package Installation Metasys Zoning Package Installation...2 Introduction... 2 Key Concepts... 3 Installation Overview... 3 Metasys Zoning Package Components... 4 Accessories... 6 Zone Control Operation... 7 Rooftop Operation... 7 Supply Fan Operation... 9 Procedure Overview... 10 Detailed Procedures... 13 Wiring the Supply Fan... 13 Wiring Heating and Cooling Stages... 13 Providing Demand Controlled Ventilation... 14 Providing Discharge Air Low and High Limits... 14 Enabling the Economizer Changeover Type... 14 Controlling a Proportional Modulated Heating Valve... 15 Controlling an Economizer Damper... 15 Installing a Bypass Damper Assembly... 16 Installing a Static Pressure Sensor for a Bypass Control Damper... 16 Installing a Zone Control Damper Assembly... 17 Installing Zone Temperature Sensors... 18 Wiring Auxiliary Heating... 19 2002 Johnson Controls, Inc. www.johnsoncontrols.com Code No. LIT-639200

2 Metasys Zoning Package Installation Technical Bulletin Metasys Zoning Package Installation Introduction The Metasys Zoning Package (MZP) provides independent control to multiple zones using a standard packaged constant volume Rooftop Unit (RTU). To set up the equipment, follow the standard procedures described in the technical bulletin for each product. This technical bulletin describes how to: set up the rooftop unit - wire the supply fan - wire heating and cooling stages - provide demand controlled ventilation - provide discharge air low and high limit - enable the economizer changeover type - control a proportional modulated heating valve - control an economizer damper set up the zones - install a bypass damper assembly - install a static pressure sensor for a bypass control damper - install a zone control damper assembly - install zone temperature sensors - wire auxiliary heating

Metasys Zoning Package Installation Technical Bulletin 3 Key Concepts Installation Overview Figure 1 shows an overview of the Metasys Zoning Package installation: Set the N2 addresses for each controller. Refer to the Unitary Controller (UNT) Technical Bulletin (LIT-6363081) for xx-unt121-1 or the Unitary (UNT) Controller 1100 Series User's Guide (LIT-6363083) for AS-UNT1126-0 and the Mounting and Wiring Variable Air Volume Modular Assembly (VMA) 1400 Series Controllers Technical Bulletin (LIT-6363125). Are you using the Metasys Network or N30 Series supervisory system? Mount and wire the UNT according to the procedures described in the Unitary Controller (UNT) Technical Bulletin (LIT-6363081) for xx-unt121-1 or the Unitary (UNT) Controller 1100 Series User's Guide (LIT-6363083) for AS-UNT1126-0. Set up the rooftop unit according to the procedures described in this document. Metasys Operator Workstation (OWS) Install the N1 Local Area Network (LAN) according to the procedures described in the N1 ARCNET Local Area Network Technical Bulletin (LIT-636017). N30 Series Supervisory System Set up the zones according to the procedures described in this document. Connect all UNT and VMA controllers to the N2 Bus according to the procedures described in the Unitary Controller (UNT) Technical Bulletin (LIT-6363081) for xx-unt121-1 or the Unitary (UNT) Controller 1100 Series User's Guide (LIT-6363083) for AS-UNT1126-0, Mounting and Wiring Variable Air Volume Modular Assembly (VMA) 1400 Series Controllers Technical Bulletin (LIT-6363125), and ASC and N2 Bus Networking and Troubleshooting Guide Technical Bulletin (LIT-6363003). Install the Building Automation System (BAS). For the Metasys Network, refer to the Advanced User's Guide in the Operator Workstation User's Manual. For N30 Series supervisory system, refer to the N30 Supervisory Controller Installation Technical Bulletin (LIT-6891100). Refer to Object Dictionary and the M-Tool Overview and Installation Technical Bulletin (LIT-693100). Commission the Metasys Zoning Package system according to the procedures described in the Zoning Package Commissioning Technical Bulletin (LIT-639250). overview.vsd Figure 1: Metasys Zoning Package Installation Overview

4 Metasys Zoning Package Installation Technical Bulletin Metasys Zoning Package Components Building Automation System Building Automation System (BAS) is a generic term that refers to the Metasys Network Control Module (NCM), N30 Series supervisory systems, and associated operator workstations. The specific system names are used when referring to system-specific applications. The Metasys Zoning Package controls any standard, constant volume packaged Rooftop Unit (RTU) using select Johnson Controls BAS, digital controllers, and sensors. Unitary (UNT) Controller The UNT controls the rooftop unit to regulate the temperature of the supply air according to the zone with the highest demand. The AS-UNT121-1 and the AS-UNT1126-0 UNT controllers can be used in the Metasys Zoning Package. These are low ambient temperature rated controllers that must be installed in a weatherproof enclosure, unless they are mounted within the enclosed, low voltage electrical compartment of the rooftop unit. Refer to the Unitary Controller (UNT) Technical Bulletin (LIT-6363081) for information on the AS-UNT121-1 and refer to the Unitary (UNT) Controller 1100 Series User s Guide (LIT-6363083) for more information on the AS-UNT1126-0. Zone Damper Assembly One zone damper assembly is required for each zone. The Variable Air Volume (VAV) Modular Assembly (VMA) 1440 controller on the zone damper monitors zone temperature to determine a demand for heating or cooling and reports this demand to the rooftop UNT controller via the BAS. The VMA1440 also monitors supply air temperature in the discharge air of the RTU. As the temperature of the supply air changes, the VMA1440 modulates the zone damper to regulate its flow into the zone and satisfy its heating or cooling needs. The zone damper assembly can be ordered as a round or rectangular damper: RZGddEDx (metal controller cover is optional) ZOVSE-wwwxhhhx (metal controller cover is optional)

Metasys Zoning Package Installation Technical Bulletin 5 Bypass Damper Assembly An actuator controls the bypass damper. The actuator of the bypass damper is controlled by the VMA1440 controller on a zone damper assembly. The bypass damper regulates air volume and static pressure through the MZP system. As building load is satisfied, and the zone dampers in the system begin to modulate closed, static pressure increases in the ductwork. If system static pressure becomes excessive, the static pressure transducer sends a signal to the VMA1440 controlling the M9106 actuator on the bypass damper. In response, the VMA1440 sends a signal to the actuator to partially open the bypass damper, allowing excess air to flow from the supply side to the return side of the rooftop unit. This eliminates excessive system static pressure, prevents the generation of noise at the diffusers, and prevents the erratic loss of temperature control in the zones. The VMA1440 controller also supports Variable Frequency Drive (VFD) applications. When using a VFD for static pressure control, you must change the Direct Acting attribute of the static setpoints group to False. This can be done in the Parameters List Box of the HVAC PRO software. The Params button on the HVAC PRO main screen displays the Parameters List Box. Refer to the Viewing and Modifying Configuration Parameters (LIT-63750410) chapter of the HVAC PRO User s Guide for more information. The bypass damper assembly requires the following components: RCGddEDx or BOVAE-wwwxhhhx (metal actuator cover is optional) AS-DPTKIT-1 static pressure transducer kit for use with the VMA1440 controller (DPT-2015 static pressure sensor mounted in separate metal enclosure with Dwyer A-303 static pressure tip) Slave Damper Applications The slave applications must be installed with one of the following: RCGddEDx BOVAE-wwwxhhhx

6 Metasys Zoning Package Installation Technical Bulletin VMA1420 Controller The VMA1420 controller can also be used with the MZP application, but the internal Differential Pressure Transducer (DPT) sensor is only used for monitoring purposes. The VMA1420 is not available as a factory-mounted option and must be field installed. When using the VMA1420 DPT sensor, you must configure the Setup attribute of the AI-5 input to DeltaP Water Column (W.C.), using HVAC PRO software. Refer to the Viewing and Modifying Configuration Parameters (LIT-63750410) chapter of the HVAC PRO User s Guide for more information. Zone Temperature Sensor The recommended zone temperature sensor is the TE-67Nx-1BOO or the AP-TMZ1600-0. Only one sensor is supported by each zone damper assembly. Split-Bobbin Transformer The recommended split-bobbin transformers are the Johnson Controls Y63, Y64, or Y65 Series transformers. Table 1 lists the power requirements for the zone and bypass damper assemblies and slave applications. Table 1: Zone and Bypass Damper Assembly and Slave Application Power Requirements (VA) Bypass Damper/Slave Application Zone Damper Controller N/A 10.0 VA Actuator 5.0 VA N/A Total 5.0 VA 10.0 VA Accessories Required Accessories The following accessories are required and must be ordered separately: static pressure transducer kit for use with the VMA1440 controller (AS-DPTKIT-1). This kit is needed for bypass applications and provides input to the VMA1440 zone damper to activate bypass control. room sensor (TE-6700 or TMZ1600)

Metasys Zoning Package Installation Technical Bulletin 7 Optional Accessories The following optional MZP accessories also are available: M3 Workstation Zone Terminal (UNT controller only) carbon dioxide (CO 2 ) sensor humidity sensor (required for the Economizer function) Zone Control Operation The transfer function for the temperature loop for the zone box application is represented in Figure 2. This control loop resembles a pressure-dependent terminal unit controller. Separate Proportional plus Integral (PI) controllers are used in cooling and heating to keep the zone temperature near setpoint by modulating the zone damper. The Heating mode is true if the supply air temperature is greater than the zone temperature plus the supply offset. The Zone Demand signal produced by each zone VMA1440 controller is a number from -100 to 100 representing the negated heating PI output combined with the cooling PI output. A zone demand between -100 and 0 is a call for heating, with a zone demand of -100 being the maximum demand for heating. A zone demand between 0 and 100 is a call for cooling, with 100 being the maximum demand for cooling. Figure 2 shows the transfer function for the temperature loop of the zone damper. Cooling Setpoint + Cooling PI Error Controller - Direct Action Zone Demand Heating Mode = Off = 0-100 Zone Demand Damper Setpoint Damper and Process Heating Setpoint + - Error Heating PI Controller Reverse Action Heating Mode = On = -100-0 Zone Demand Measured Zone Temperature trans Figure 2: Zone Damper Temperature Loop Transfer Function Rooftop Operation The rooftop has three modes of operation: Heating, Satisfied, and Cooling. The deviation of the Heating Command from zero is used to place one or more heating devices in the Heating mode. Cooling mode operates in the same way. All controlled devices are turned off in the Satisfied mode.

8 Metasys Zoning Package Installation Technical Bulletin The polling scheme in the rooftop controller identifies the worst case heating and cooling loads. Any zone that remains at 100% Heating or Cooling Command for the duration of the Zone Unresponse Time is not included in the polling for the worst case zones until that zone s command decreases below 100%. Transitions between these states are shown in Figure 3: Heating Demand > Htg Start Limit AND Cooling Mode = False Cooling Demand > Clg Start Limit AND Heating Mode = False Heating Satisfied Cooling Vvtfsm Heating Demand < Htg Start Limit - Differential Cooling Demand < Clg Start Limit - Differential Figure 3: Finite State Drawing for the Rooftop In Figure 3: Heating mode = (Outdoor Air Temperature < Outdoor Air Temperature setpoint - differential) AND (Heating Demand > Heating Start Limit) and Cooling mode = (Outdoor Air Temperature > Outdoor Air Temperature setpoint) AND (Cooling Demand > Cooling Start Limit). Note: The Heating Mode parameter in the rooftop application is not the same as the Heating Mode parameter in the zone control application. The rooftop controller begins in the Satisfied state. The system is set to either heating priority or cooling priority. This priority mode is evaluated first. The controller switches from Satisfied to Cooling if cooling is the priority mode and Cooling Command exceeds the Clg Stg 1 Start parameter. The UNT controller only switches into non-priority mode if all zones in the priority mode have been satisfied (The Cooling Command is less than Clg Stg 1 Start, if cooling is the priority mode.). For example, if heating or cooling priority is being automatically determined based on outdoor air temperature and the outdoor air is cold, the rooftop unit operates in heating priority. Cooling Mode equals Off because it is the non-priority mode. Nonetheless, cooling stages can still be energized as long as the Heating Command does not exceed Htg Stg 1 Start (or Mod Htg Start).

Metasys Zoning Package Installation Technical Bulletin 9 Supply Fan Operation The supply fan has two modes of operation: continuous and intermittent. In continuous supply fan operation, the supply fan operates continuously during the Occupied mode and cycles the fan on a call for heating or cooling during the Unoccupied mode. In intermittent supply fan operation, the supply fan operates only during a call for heating or cooling, in Occupied or Unoccupied mode. The supply fan status sensor (a current-sensing or proof-of-airflow switch) indicates whether the supply fan is operating. This status is compared to the controller supply fan command to verify that the command has taken effect. The filter switch shuts off the supply fan when the filter is dirty. If the differential pressure across the filter exceeds a specified limit indicating the filter is dirty, the filter switch closes and shuts off the fan.

10 Metasys Zoning Package Installation Technical Bulletin Procedure Overview Table 2: Installing the Metasys Zoning Package To Do This Follow These Steps: Set Up the Rooftop Unit Wire the Supply Fan Continuous Operation: Connect BO1 of the UNT controller to the supply fan start/stop terminal. Connect a contact that is closed when airflow is proven to BI4, Supply Airflow. Intermittent Operation: Connect BO1 of the UNT controller to the supply fan start/stop terminal. Connect a contact that is closed when airflow is proven to BI4, Supply Airflow. Place a jumper from BI1, Fan Operation, to 24 VAC COM of the UNT controller. Filter Switch: Connect a normally open dirty filter contact across BI2, Dirty Filter Switch, of the UNT controller. Wire Heating and Cooling Wire Heating Stages: Wire each Binary Output (BO) designated as a Stages heating stage to the appropriate heating stage on/off terminal of the UNT controller. Note: BO2 and BO3 are Heating Stages 1 and 2, respectively, for the standard rooftop application. The modulated gas heating application requires no BO. Wire Cooling Stages: Wire each BO designated as a cooling stage to the appropriate cooling stage on/off terminal of the UNT controller. Note: BO5 and BO6 are Cooling Stages 1 and 2, respectively, for the standard rooftop application. BO3 to BO6 are Cooling Stages 1 to 4 for the 4-stage cooling and modulated heating rooftop application. Provide Demand Controlled Connect a carbon dioxide sensor to AI3, Carbon Dioxide, of the UNT Ventilation* controller. Provide Discharge Air Low and Connect a discharge air temperature sensor to AI4, Discharge Air, of the High Limit UNT controller. Enable the Economizer Dry Bulb Economizer: Changeover Type Connect an outdoor air temperature sensor to AI5, Outdoor Air Temp, of the UNT controller. Do not connect any sensor to the OA Relative Humidity Input (AI6). In HVAC PRO software, open the existing commercial zoning application rooftop configuration file or, on the File menu, click File > New and select Application Group: Commercial Zoning Applications and Applications: Rooftop (UNT) from the File New/Selection dialog box. Click the Params button. Click Econ Changeover Setpts. Click OA Enthalpy SP and set the Value to 110. Save the configuration file. Download the application to the rooftop unit, if not previously done. Note: Outdoor temperature can be shared from one sensor to all rooftop units, using the global data sharing feature of the Building Automation System (BAS). Continued on next page... * optional Single Enthalpy Economizer Changeover: Connect an outdoor air temperature sensor to AI5, Outdoor Air Temp, of the UNT controller. Connect an outdoor air relative humidity sensor to AI6, OA Rel Humid, of the UNT controller.

Metasys Zoning Package Installation Technical Bulletin 11 To Do This (Cont.) Control a Proportional Modulated Heating Valve Control an Economizer Damper Set Up the Zones Install a Bypass Damper Assembly Install a Static Pressure Sensor for a Bypass Control Damper Install a Zone Control Damper Assembly Continued on next page... Follow These Steps: Connect the heating valve controls to AO1, Mod Htg Prop Valve, of the UNT controller. UNT Controller: Connect the economizer damper actuator to AO2, Damper Command, of the UNT controller. The outdoor air temperature and relative humidity sensors must be connected for economizer control. Separate Economizer Controller: Connect the call for cooling input terminal (which may be labeled Y1) of the economizer damper controller to the BO for Cooling Stage 1. The outdoor air temperature and relative humidity sensors must be connected for economizer control. Bypass Damper: Connect the intake end of the bypass damper to the upstream end of the supply duct by orienting the flow direction arrow on the damper as the bypass duct is being installed. Connect the discharge end of the bypass damper to the downstream portion of the bypass duct. Connect the actuator of the bypass damper to AO2 of the VMA1440 controller on the zone damper. Provide 24 VAC power to the bypass damper actuator. Slave Application (Bypass Damper): Perform the procedures for installing a bypass damper. Connect the actuator of the slave damper to AO2 of the VMA1440 controller on the zone damper. Install the pressure transducer on the supply air duct. Note: Carefully consider the placement of the static pressure sensor. The recommended location is two-thirds of the distance from the supply fan discharge to the last terminal unit on the farthest run. Drill a hole in the duct and insert the probe. Secure it with the magnetic base so that the probe faces downstream. Connect the high pressure port of the transducer to the static pressure probe. Connect the output signal from the pressure transducer to AI3, Static Pressure, of the zone damper VMA1440 controller chosen to perform the bypass damper control. Zone Control Damper: Connect the intake end of the zone damper to the upstream end of the supply duct by orienting the flow direction arrow on the damper as the supply duct is being installed. Connect the discharge end of the zone damper to the downstream portion of the supply duct that leads to the zone diffuser. Provide 24 VAC power to the zone damper actuator. Slave Application (Zone Control): Perform the procedures for installing a zone damper. Connect a jumper from BI3 to the COM of the zone controller. Wire the M9106-GGA-2 proportional 0-10 actuator to the AO2 of the zone controller (VMA1440). Provide 24 VAC power to the slave zone damper.

12 Metasys Zoning Package Installation Technical Bulletin To Do This (Cont.) Install Zone Temperature Sensors Follow These Steps: Single Zone (stand-alone): Mount a zone temperature sensor, or return air temperature sensor, according to the procedures described in the appropriate temperature sensor document. Connect the temperature sensor to AI1, Room/Return Temp, of the UNT controller. Place a jumper from BI3, Auto Mode, to 24 VAC COM of the UNT controller to force the system to single zone mode. Multiple Zones (Zoning): Mount a zone temperature sensor in each zone according to the procedures described in the appropriate zone temperature sensor document. Connect each zone temperature sensor to AI1, Zone Temp, of the VMA1440 controller in that zone. If applicable, also connect the warmer/cooler adjustment potentiometer to AI2, Warm/Cool Adjust, of the VMA1440 controller. Connect a return air temperature sensor to AI1, Room/Return Temp, of the UNT controller. This sensor is used if the system reverts to single zone mode. Ensure that the BI3, Auto Mode, is open on the UNT controller. Wire Auxiliary Heating Incremental: Connect the incremental auxiliary heating to BO3, Valve Open, and BO4, Valve Close, of the VMA1440 controller on the zone damper. Proportional: Connect the proportional auxiliary heating to AO1, Aux Htg Prop Valve, of the VMA1440 controller on the zone damper. Staged: Connect the first or only stage to BO1, Aux Htg 1, of the VMA1440 controller on the zone damper. Connect the second stage (if applicable) to BO2, Aux Htg 2, of the VMA1440 controller on the zone damper. Note: If a box fan is selected, connect the first stage to BO2, Aux Htg 1. Note: The VMA1440 also performs the bypass (static pressure) and slave application control functions. To control a slave damper on the zone, connect a jumper between the BI3 and COM; the AO2 mirrors the output of the damper command. To control static pressure based on static pressure sensor inputs to the AI3, do not connect a jumper between the BI3 and COM.

Metasys Zoning Package Installation Technical Bulletin 13 Detailed Procedures Wiring the Supply Fan To wire the supply fan for continuous or intermittent operation: Continuous Operation 1. Connect B01 of the UNT controller to the supply fan start/stop terminal. 2. Connect a contact that is closed when airflow is proven to BI4, Supply Airflow. Intermittent Operation 1. Connect B01 of the UNT controller to the supply fan start/stop terminal. 2. Connect a contact that is closed when airflow is proven to BI4, Supply Airflow. 3. Place a jumper from BI1, Fan Operation, to 24 VAC COM of the UNT controller. Filter Switch If you want the fan to shut off automatically when the filter is dirty, connect a normally open dirty filter contact across BI2, Dirty Filter Switch, of the UNT controller. Wiring Heating and Cooling Stages To wire heating and cooling stages: Heating Stages Wire each BO designated as a heating stage to the appropriate heating stage on/off terminal of the UNT controller. Note: BO2 and BO3 are Heating Stages 1 and 2, respectively, for the standard rooftop application. The modulated heating valve application has no BOs for heating. Cooling Stages Wire each BO designated as a cooling stage to the appropriate cooling stage on/off terminal of the UNT controller. Note: BO5 and BO6 are Cooling Stages 1 and 2, respectively, for the standard rooftop application. BO3 through BO6 are Cooling Stages 1 through 4 for the 4-stage cooling and modulated heating rooftop application.

14 Metasys Zoning Package Installation Technical Bulletin Providing Demand Controlled Ventilation To provide demand controlled ventilation, connect a carbon dioxide sensor to AI3, Carbon Dioxide, of the UNT controller. See the Economizer section in the Zoning the Rooftop Unit (LIT-639320) chapter of the Metasys Zoning Package User s Guide for more details. This input is optional for single zone and multi-zone control. Providing Discharge Air Low and High Limits To provide heating high and cooling low limits, connect a discharge air temperature sensor to AI4, Discharge Air, of the UNT controller. Enabling the Economizer Changeover Type The Metasys Zoning Package supports either the dry bulb economizer or single enthalpy economizer changeover types. To enable the Economizer changeover type: Dry Bulb Economizer 1. Connect an outdoor air temperature sensor to AI5, Outdoor Air Temp, of the UNT controller. Note: Do not connect any sensor to the OA Relative Humidity Input (AI6). 2. In HVAC PRO software, on the File menu, click Open to open the existing commercial zoning application rooftop configuration file or, on the File menu, click File > New and select Application Group: Commercial Zoning Applications and Applications: Rooftop (UNT) from the File New/Selection dialog box. 3. Click the Params button to display the Parameters List box. 4. Click Econ Changeover Setpts. 5. Click OA Enthalpy SP to open the Parameter Modify dialog box. 6. Set the Value of the OA Enthalpy SP (ADF 215) to 110. 7. Save the configuration file. 8. Download the application to the rooftop unit, if not previously done. Note: Outdoor temperature can be shared from one sensor to all rooftop units, using the global data sharing feature of the Building Automation System (BAS).

Metasys Zoning Package Installation Technical Bulletin 15 Single Enthalpy Economizer Changeover 1. Connect an outdoor air temperature sensor to AI5, Outdoor Air Temp, of the UNT controller. 2. Connect an outdoor air relative humidity sensor to AI6, OA Rel Humid, of the UNT controller. Notes: Both the outdoor air temperature sensor and the outdoor air relative humidity sensor are required to calculate outdoor air enthalpy. See the Economizer section in the Zoning the Rooftop Unit (LIT-639320) chapter of the Metasys Zoning Package User s Guide for more details. Outdoor temperature and humidity each can be shared from one sensor to all rooftop units, using the global data sharing feature of the supervisory system. Controlling a Proportional Modulated Heating Valve To control a proportional modulated heating valve, connect the heating valve controls to AO1, Mod Htg Prop Valve, of the UNT controller. Controlling an Economizer Damper To control an economizer damper: UNT Controller Connect the economizer damper actuator to AO2, Damper Command, of the UNT controller. The outdoor air temperature and relative humidity sensors must be connected for economizer control. Separate Economizer Controller Connect the call for cooling input terminal (which may be labeled Y1) of the economizer damper controller to the BO for Cooling Stage 1. The outdoor air temperature and relative humidity sensors must be connected for economizer control.

16 Metasys Zoning Package Installation Technical Bulletin Installing a Bypass Damper Assembly To install a bypass damper assembly: Bypass Damper 1. Connect the intake end of the bypass damper to the upstream end of the supply duct by orienting the flow direction arrow on the damper as the bypass duct is being installed. 2. Connect the discharge end of the bypass damper to the downstream portion of the bypass duct. 3. Connect the actuator of the bypass damper to AO2 of the VMA1440 controller on the zone damper. 4. Provide 24 VAC power to the bypass damper actuator. Refer to the M9100 Series Electric Non-spring Return Actuators Installation Bulletin (LIT-2681060). Slave Application (Bypass Damper) 1. Perform the procedures for installing a bypass damper. 2. Connect the actuator of the slave damper to AO2 of the VMA1440 controller on the zone damper. Follow the Installation Procedures section of the Variable Air Volume Modular Assembly (VMA) 1400 Series Overview and Engineering Guidelines Technical Bulletin (LIT-6363120) or Mounting and Wiring Variable Air Volume Modular Assembly (VMA) 1400 Series Controllers Technical Bulletin (LIT-6363125). Note: Multiple actuators on slave dampers can be wired in parallel to the AO2 (Analog Output) on the VMA1440 controller. Refer to VAV Modular Assembly (VMA) 1440 Installation Bulletin (Part No. 24-9590-0). Installing a Static Pressure Sensor for a Bypass Control Damper To install a static pressure sensor for a bypass control damper: 1. Install the pressure transducer on the supply air duct. Note: Carefully consider the placement of the static pressure sensor. The recommended location is two-thirds of the distance from the supply fan discharge to the last terminal unit on the farthest run. 2. Drill a hole in the duct, and insert the probe. Secure it with the magnetic base so that the probe faces downstream. 3. Connect the high pressure port of the transducer to the static pressure probe.

Metasys Zoning Package Installation Technical Bulletin 17 4. Connect the output signal from the pressure transducer to AI3, Static Pressure, of the zone damper VMA1440 controller chosen to perform the bypass damper control. Follow the Wiring Details section of the Variable Air Volume Modular Assembly (VMA) 1400 Series Overview and Engineering Guidelines Technical Bulletin (LIT-6363120) or Mounting and Wiring Variable Air Volume Modular Assembly (VMA) 1400 Series Controllers Technical Bulletin (LIT-6363125). Installing a Zone Control Damper Assembly To install a zone control damper assembly: Zone Control Damper 1. Connect the intake end of the zone damper to the upstream end of the supply duct by orienting the flow direction arrow on the damper as the supply duct is being installed. 2. Connect the discharge end of the zone damper to the downstream portion of the supply duct, which leads to the air diffuser in one zone. 3. Provide 24 VAC power to the zone damper actuator. Refer to the Variable Air Volume Modular Assembly (VMA) 1440 Installation Bulletin (Part No. 24-9590-0). Slave Application (Zone Control) 1. Perform the procedures for installing a zone damper. 2. Connect a jumper from BI3 to the COM of the zone controller. 3. Wire the M9106-GGA-2 proportional 0-10 actuator to the AO2 of the zone controller. 4. Provide 24 VAC power to the slave zone damper. Refer to the M9100 Series Electric Non-spring Return Actuators Installation Bulletin (LIT-2681060).

18 Metasys Zoning Package Installation Technical Bulletin Installing Zone Temperature Sensors To install a zone temperature sensor: Single Zone (Stand-Alone) 1. Mount a zone temperature sensor, or return air temperature sensor, according to the procedures described in the appropriate temperature sensor document. 2. Connect the temperature sensor to AI1, Room/Return Temp, of the UNT controller. 3. Place a jumper from BI3, Auto Mode, to 24 VAC COM of the UNT controller to force the system to single zone mode. Multiple Zones (Zoning) 1. Mount a zone temperature sensor in each zone according to the procedures described in the appropriate zone temperature sensor document. 2. Connect each zone temperature sensor to AI1, Zone Temp, of the VMA1440 controller in that zone. If applicable, also connect the warmer/cooler adjustment potentiometer to AI2, Warm/Cool Adjust, of the VMA1440 controller. 3. Connect a return air temperature sensor to AI1, Room/Return Temp, of the UNT controller. This sensor is used if the system reverts to single zone mode. Ensure that the BI3, Auto Mode, is open on the UNT controller. Follow the Wiring Details section of the Variable Air Volume Modular Assembly (VMA) 1400 Series Overview and Engineering Guidelines Technical Bulletin (LIT-6363120) or Mounting and Wiring Variable Air Volume Modular Assembly (VMA) 1400 Series Controllers Technical Bulletin (LIT-6363125).

Metasys Zoning Package Installation Technical Bulletin 19 Wiring Auxiliary Heating To wire auxiliary heating: Incremental Connect the incremental auxiliary heating to BO3, Valve Open, and BO4, Valve Close, of the VMA1440 controller on the zone damper. Proportional Connect the proportional auxiliary heating to AO1, Aux Htg Prop Valve, of the VMA1440 controller on the zone damper. Staged 1. Connect the first or only stage to BO1, Aux Htg 1, of the VMA1440 controller on the zone damper. 2. Connect the second stage (if applicable) to BO2, Aux Htg 2, of the VMA1440 controller on the zone damper. Notes: If a box fan is selected, connect BO2 to Aux Htg 1. The VMA1440 also performs the slave and bypass (static pressure) control functions. To control a slave damper on the zone, connect a jumper between the BI3 and COM; the AO2 mirrors the output of the damper command. To control static pressure based on static pressure sensor inputs to the AI3, do not connect a jumper between the BI3 and COM. Controls Group 507 E. Michigan Street P.O. Box 423 Milwaukee, WI 53201 www.johnsoncontrols.com Published in U.S.A.