Johnson Controls METASYS VAV110 Technical Manual
  1. Manuals
  2. Brands
  3. Johnson Controls Manuals
  4. Controller
  5. METASYS VAV110
  6. Technical manual
Johnson Controls METASYS VAV110 Technical Manual

Johnson Controls METASYS VAV110 Technical Manual

Variable air volume controller
Hide thumbs
Table of Contents

Advertisement

Quick Links

Variable Air Volume (VAV) Controller
• Standards Compliance
• Using HVAC PRO for Windows Configuration Tool
© 2009 Johnson Controls, Inc.
Code No. LIT-6363040
* Indicates those sections where changes have occurred since the last printing.
Application Specific Controllers Technical Manual 636.3
VAV Controller Section
Technical Bulletin
Issue Date 0309
Page
5
5
8
*8
8
11
11
13
17
17
17
18
21
23
1

Advertisement

Table of Contents
loading

Related Manuals for Johnson Controls METASYS VAV110

Summary of Contents for Johnson Controls METASYS VAV110

  • Page 1: Table Of Contents

    • Mounting the Controller • Power Line Wiring Transient Noise Precautions • I/O and Communication Lines Wiring Transient Noise Precautions * Indicates those sections where changes have occurred since the last printing. © 2009 Johnson Controls, Inc. Code No. LIT-6363040...
  • Page 2 Wiring Details Page • Power Source and Loads • Grounding and Isolation • I/O and Communication Terminals • Power, Zone Bus, and N2 Connections • Analog Inputs • Binary Inputs • Binary Outputs • Analog Outputs • Zone Bus • Wiring to RLY50/002 Relays •...

  • Page 3: Vav Controller—Variable Air Volume (Vav) Controller

    • Troubleshooting the N2 Bus and Networked VAV Controller • Zone Bus Troubleshooting -- HVAC PRO for Windows Ordering Information • Johnson Controls Code Numbers • Vendor Code Numbers Specifications * Indicates sections where changes occurred since the last printing.
  • Page 4 4 VAV Controller—Variable Air Volume (VAV) Controller...

  • Page 5: Introduction

    Introduction 1 2 F The Variable Air Volume (VAV) Controller is an electronic device for Description digital control of single duct, dual duct, fan powered, and supply/exhaust VAV box configurations. See F igure 1. You may use the VAV as a 5 0 H standalone controller or connected to the Metasys®...
  • Page 6 BINARY OUTPUT ANALOG INPUTS BINARY INPUT 1 2 3 4 5 6 1 2 3 4 1 2 3 4 5 6 7 8 Z O N E S T A T Z BUS 1 2 3 4 5 6 ANALOG INPUTS BINARY COM COM MON...
  • Page 7 Table 1: VAV Controller Model Features Feature VAV100/101 VAV110/111 VAV140/141 (Discontinued) Ambient 32 to 122°F 32 to 122°F 32 to 122°F Temperature (0 to 50°C) (0 to 50°C) (0 to 50°C) Rating Analog Inputs RTD temperature RTD temperature RTD temperature elements (1000 ohm elements (1000 ohm elements (1000 ohm...

  • Page 8: Oem Applications

    When providing VAVs for projects which use Trane® or TITUS® 3 F 4 F 5 F Applications terminal boxes, consider using the AS-VAVDPTx-1 product (refer to Building VAVDPT Applications Application Note (LIT-6363042) in the Application Specific Controllers Technical Manual (FAN 636.3). Trane and TITUS are both Original Equipment Manufacturers (OEMs) who provide VAV terminal boxes for projects.
  • Page 9 In conjunction with the mechanical contractor, the controls contractor’s responsibilities include: Coordination of the control system release schedule to the box manufacturer to ensure the mechanical system delivery schedule can be met. Coordination with the local box manufacturer representative is normally required.
  • Page 10 10 VAV Controller—Variable Air Volume Controller...

  • Page 11: Configuring The Controller

    Configuring the Controller 1 2 F 1 3 F 1 4 F Use HVAC PRO for Windows to configure the VAV. VAV110/111 and Using VAV140/141 models require HVAC PRO for Windows. HVAC PRO for HVAC PRO Windows also works with the VAV100/101 models. This easy-to-use for Windows software tool configures, commissions, and downloads the VAV Configuration...
  • Page 12 Start HVAC PRO for Windows Select File-New 1. Select VAV Applications. 2. Select Single or Dual Duct. Complete Q/A Session Complete Configuration Process 1. Fill in job information. 2. Review and change inputs/outputs. - Option - Job Information 3. Review and change default parameters. Save Configuration 1.

  • Page 13: Defining A Vav Control Device Object In Metasys Software

    Note: You can load and commission the controller either locally with the AS-CBLPRO-2 interface at the zone sensor (Figure 15) or from a central location where the N2 has been pulled, controller’s field hardware addressed, and an MM-CVT101-1 interfaced to the laptop. Using a Metasys Network system, you need to define a VAV Controller Defining a VAV 1 5 F 1 6 F 1 7 F...
  • Page 14 Hardware -- Add N2 Device Device Type CANC EL D600 DR9100 DX9100 IFC-2020 n2dvc Figure 4: Add N2 Device Dialog Box Highlight VAV. Click OK to display the VAV Definition window ( F igure 5). 5 2 H VAV Definition Help Item Edit View Action Go To Accessory...
  • Page 15 Table 2 explains the blank attributes. The Operator Workstation User’s Manual (FAN 634) describes the general procedures for entering and modifying data. Table 2: Blank VAV Object Attributes Attribute Description Entry Values . . . Object Name Identifies the object 1 to 8 alphanumeric (i.e., ILC).
  • Page 16 16 VAV Controller—Variable Air Volume Controller...

  • Page 17: Installation Procedures

    Installation Procedures 1 8 F 1 9 F 2 0 F Instructions for the installation of the VAV Controller and its accessory devices are detailed in this section. The types and numbers of components (sensors and actuators) selected for use with the VAV vary according to application.

  • Page 18: Mounting The Controller

    VAV box. If there is not an available enclosure, the common packaging for the VAV Controller is an enclosure provided by the contractor or the Johnson Controls EN-EWC10, EN-EWC15, BZ1000, or AS-ENC enclosure. The controller requires a flat mounting surface area to match its dimensions: •...
  • Page 19 +15VDC +15VDC 24VAC 24VAC TR AC S C O M M O N C O M M O N C O M M O N C O M M O N Low Voltage C O M M O N Wiring Trough vavpwer Figure 6: EWC10 Enclosure with VAV Controller and 50 VA Transformer...
  • Page 20 You can install a VAV Controller into a control panel or an AS-ENC100-0 enclosure. Do not use this knockout. Otherwise, controller will be in the way of wiring. Top / Bottom Side VAV Controller vavencl2 VAV Enclosure (Cover) Figure 7: Installing the VAV Controller in an Enclosure Kit Mount the VAV in any convenient location using the predrilled mounting holes.

  • Page 21: Power Line Wiring Transient Noise Precautions

    Power Line The standard VAV Controller, when powered by any typical separate 2 7 F 2 8 F 2 9 F Wiring isolation transformer or step-down transformer, operates reliably in an Transient Noise electrical environment defined as Location Category A by the IEEE 587 Precautions Standard, that is, when installed more than 30 feet/9 meters from electrical distribution panels or major bus and feeder systems in industrial...
  • Page 22 Table 3: MOV Selection Power Transformer Primary Voltage 120 VAC 208 to 240 VAC 277 VAC 347 VAC Minimum Continuous 130 to 135 VRMS 250 to 280 VRMS 300 to 320 VRMS 385 VRMS Only 250V types listed Voltage Rating Minimum Energy Rating 30 Joules 55 Joules 80 Joules...

  • Page 23: I/O And Communication Lines Wiring Transient Noise Precautions

    I/O and The I/O wiring and N2 Bus must be clean, without electrical noise Communication transients from nearby lightning, heavy equipment switching, or inductive Lines Wiring loads being driven. Transient Noise For the N2 Bus, the Transient Eliminator®, model TE/JC04C12, made by Precautions Advanced Protection Technologies (APT) is recommended.
  • Page 24 24 VAV Controller—Variable Air Volume Controller...

  • Page 25: Wiring Details

    Wiring Details 3 0 F 3 1 F 3 2 F Take special precautions and follow certain grounding procedures when installing the VAV Controller. CAUTION: Possible Equipment Damage or Electrical Shock. To avoid damaging equipment or possible electrical shock, ensure that all power supplies to the system have been disconnected prior to wiring installation.

  • Page 26: Power Source And Loads

    Power Source Use a separate isolation transformer or step-down transformer for each and Loads VAV Controller. Refer to Standards Compliance in the Introduction section of this technical bulletin. The power transformer used must comply with: CSA 22.2 No. 205 NEMA ICS 2, Part 2, 230 Limit the power to each VAV to 3 amperes or less.
  • Page 27 Table 5: Actuator VA Requirements Actuator Type VA Requirements for 24 VAC Supply EDA-2040 (ATP-2040) Incremental 3 VA Incremental 2.7 VA VA-7150 Incremental 5.5 VA VA-7200 VA-8020 Incremental 4 VA Incremental 6 VA VA-8050 On-Off 7 VA J Series Electric Zone Valve M9100-A, M9200-A Floating 6.5 VA...
  • Page 28 All VAV100/101 connections must be isolated from earth ground to protect the CBLPRO, laptop PC, or other system components from damage. Due to OEM system designs and/or electrical codes, the VAV may become earth grounded unless you take isolation measures. Typically, the VAV box manufacturer supplies a step-down isolation transformer as part of their mounting service.
  • Page 29 Power Transformer 24VAC +15VDC +15VDC ZBUS See CAUTION below 24VAC ZBUS 24VAC Load 24VAC TRIACS COMMON COMMON Contactor COMMON COMMON COMMON transeri Figure 9: Transformer Wiring Diagram for Series 110/111 VAV Controllers CAUTION: Some local electric codes require the secondary common of stepdown transformers be connected to earth ground (typically on units powered by more than 150 VAC).
  • Page 30 AN AL OG IN PU TS BIN ARY IN PU T BIN AR Y O U TPU T 1 2 3 4 5 6 1 2 3 4 1 2 3 4 5 6 ZON E S T A T Z B U S 1 2 3 4 5 6 ANAL OG IN PU TS...
  • Page 31 Table 6: VAV100/101 Terminal Identification Series 100/101 Controller Terminal Description Terminal Description Analog Input Analog Input 1 AI COM AI 1 Common Analog Input Analog Input 2 AI COM AI 2 Common AI COM Analog Input AI 3 Analog Input 3 Common AI COM Analog Input...
  • Page 32 AN AL OG INPUT S BINAR Y INPU T BINAR Y O UTPU T 1 2 3 4 5 6 1 2 3 4 1 2 3 4 5 6 7 8 ZON E STA T Z BU S VAV110 1 2 3 4 5 6 AN AL OG INPUT S BIN ARY COM...
  • Page 33 Table 7: VAV 110/111 Terminal Identification Series 110/111 Controller Terminal Description Terminal Description AI CM Analog Input AI 1 Analog Input 1 Common AI CM Analog Input AI 2 Analog Input 2 Common AI CM Analog Input AI 3 Analog Input 3 Common Analog Input Analog Input 4...
  • Page 34 ZONE ZON E STAT B U S Z BU S 1 2 3 4 5 6 A I1 A I2 A I4 A I6 B I1 BI4 BO 1 BO4 BO5 BO 6 B O 7 B O 8 C O M C O M C O M V DC...
  • Page 35 Table 8: Series 140/141 Controller Terminal Description Analog Input 1 A COM Analog Input Common Analog Input 2 Analog Input 3 Analog Input Common A COM Analog Input 4 Analog Input 5 Analog Input Common A COM Analog Input 6 +15 VDC +15 Volts DC +15 Volts DC...

  • Page 36: Analog Inputs

    Power, Zone The 24 VAC power connection to VAV100/101 is at the quick connects 4 2 F 4 3 F 4 4 F Bus, and N2 identified as 24 VAC Power and Common. The 24 VAC power connection Connections to VAV110/111 or VAV140/141 is at the far left two positions of the 3- position screw terminal block.
  • Page 37 The VAV Controller has two sets of DIP switches. One set is for configuring the analog input points, and the other for setting the address of the controller. Use Tables 9 and 10 to set the SW1 and SW2 analog input DIP switches.

  • Page 38: Binary Inputs

    IMPORTANT: Chattering Relays Driven by Binary Outputs. Chattering may occasionally occur in relays from manufacturers other than Johnson Controls due to a low load condition across the binary output triac. The chattering relays are audible, and arcing may be visible at the contacts.

  • Page 39: Zone Bus

    Zone Bus The Zone Bus allows you to connect CBLPRO or the Zone Terminal to the 5 7 F 5 8 F 5 9 F VAV Controller. With CBLPRO connected, use HVAC PRO for Windows for commissioning downloading and uploading. The Zone Bus is available for connection at Metastat™...
  • Page 40 Wiring Sensors Use 18 AWG/1.5 mm twisted pair wire for all sensor and output wiring. 6 0 F 6 1 F 6 2 F and Actuators Shielding is not required but, if used, earth ground the shield at the transformer or the controller. You may use 24 AWG/0.6 mm diameter wire in some applications.
  • Page 41 DC Supply Out 14.6-17 VDC @ 90 mA 162-10M ohm * With total controller power draw limited as described previously. Temperature Sensors ANAL OG IN PUT S BIN AR Y IN PU T BINAR Y OUT PU T 1 2 3 4 5 6 1 2 3 4 1 2 3 4 5 6 7 8 Z ON E...
  • Page 42 Phone Jack Figure 16 illustrates the polarization of the 6-pin and 8-pin phone jacks on Polarization the VAV Controller or Metastat. Terminal 1 is to the extreme left as you face the jack opening, tab notch down. PHONEJKS 8-pin 6-pin Figure 16: Phone Jack Polarization The following table defines the pin usage for each jack.
  • Page 43 Fabricating an You must construct any fabricated interconnection cable so the same color Interconnection wire on both ends of the cable align with Pin 1 in the plug. This provides a Cable consistent field assembly of the cable. Figure 17 illustrates the interconnection cable.
  • Page 44 Sharing a Sensor You may use one sensor as a master input to multiple VAV Controllers instead of mounting and wiring separate zone sensors for each controller. This application is especially beneficial when you have a mechanical system that uses more than one terminal unit to serve the same area, for example, a large conference room or open office space.

  • Page 45: Networking The Controller

    Networking the Controller 6 3 F 6 4 F 6 5 F If you are familiar with the N2 Bus, go to the next section of this technical N2 Bus bulletin: Installing the N2 Bus. Overview Wiring the A hardware connection between the N2 Communications Bus and the Controller to an NCM of the Network Control Unit (NCU) is required if the NCM is to service N2 devices.
  • Page 46 Set the N2 address and test for N2 voltage, polarity, and isolation before Installing the 6 6 F 6 7 F 6 8 F actually wiring the VAV Controller for operation. Refer to the ASC and N2 Bus N2 Bus Networking and Troubleshooting Guide (LIT-6363003) in the Application Specific Controllers Technical Manual (FAN 636.3) for more information.
  • Page 47 N2 Wiring to the Network Control Module ANALOG INPUTS BINARY INPUT BINARY OUTPUT ZONE STAT NC U Z BUS 1 2 3 4 5 6 (TB1 on C omm unication ANALOG INPUTS BINARY COM COMMON 1 2 3 4 5 6 Term inal Board) HR D ANALOG INPUTS...
  • Page 48 N2 Wiring to A hardware connection between the N2 Communications Bus and the Companion Companion PC/Panel/LTD is required to service N2 devices. An MM-CVT101-0 Communications Converter is required to network to the PC Companion. See Figure 21 for terminal locations. Refer to the Metasys Companion Technical Manual (FAN 628.1) for information specific to the CVT101 or Companion Panel/LTD.
  • Page 49 Zone Bus 6 9 F 7 0 F 7 1 F Communications Zone Bus The Zone Bus is a 2-wire communications bus that allows a computer to Description communicate with the VAV to download the VAV’s data base and to communicate with Zone Terminals and M100 Actuators.

  • Page 50: Zone Bus Communications

    CBLPRO CBLPRO (AS-CBLPRO) is an interface device for use between a computer Description running HVAC PRO for Windows and application specific controllers such as the VAV Controller. It is used for data base downloading, uploading, or commissioning via the Zone Bus communication port. When used with a Zone Bus device, such as the VAV or ZT, the CBLPRO is strictly an electrical interface between the serial RS-232 port of the computer and the Zone Bus.

  • Page 51: Application Examples

    Application Examples 7 2 F 7 3 F 7 4 F The following examples are created by answering configuration questions Single Duct using HVAC PRO for Windows to identify terminal locations of the inputs Applications and outputs. Refer to the HVAC PRO for Windows User’s Manual (FAN 637.5), the VAV Controller section, for detailed information regarding controller configuration.
  • Page 52 Select the VAV Control Strategy 1. Pressure Independent 2. Pressure Dependent without Feedback 3. Pressure Dependent with Feedback 4. Pressure Independent (User Defined Flow) Select the Damper Output Type Select the Damper Output Type 1. Binary Outputs (Incremental Control) 1. Binary Outputs (Incremental Control) 2.
  • Page 53 Hardware Point The following table shows the HVAC PRO for Windows hardware point Assignment assignments and options for single duct configurations. Table Table 17: Single Duct Point Assignments and Options Point Point HVAC PRO for Windows HVAC PRO for Windows Type Name Configuration...
  • Page 54 Point Point HVAC PRO for Windows HVAC PRO for Windows Type Name Configuration Configuration Options (Cont.) Assignments and Defaults BO 1 Supply Damper Open None Binary BO 2 Supply Damper Close None Outputs BO 3 Parallel and Series On-Off Fans None Exhaust Box Open Unused Unused...
  • Page 55 Note: The examples contained in this technical bulletin do not reflect all of the possible questions and answers. These examples are provided as a basic overview of wiring locations you might expect to see. Table 18: Single Duct Wiring Example 1 Questions and Configuration Selections HVAC PRO for Windows Questions Configuration Selections...
  • Page 56 120/24VAC 120VAC 24VAC Power Room Transformer Sensor BIN ARY OUTPUTS ANALOG INPUTS BINARY IN Lighting Relay DPT1 Damper Actuator OUT 1 COM 2 VDC 3 Stage 1 Stage 2 Stage 3 Relay Relay Relay Relay 24 VAC 24 VAC 24 VAC 24 VAC vavwe1a Figure 24: Single Duct Wiring Example 1...
  • Page 57 The following table illustrates the selections made through HVAC PRO for Windows for this example. Note: The examples contained in this technical bulletin do not reflect all of the possible questions and answers. These examples are provided as a basic overview of wiring locations you might expect to see.
  • Page 58 120/24VAC 120VAC 24VAC Power Room Transformer Sensor BIN ARY OUTPUTS ANALOG INPUTS BINARY IN DPT1 OUT 1 Damper COM 2 VDC 3 Actuator DPT2 Proportional OUT 1 Valve COM 2 Actuator VDC 3 vavwe2a Figure 26: Single Duct Wiring Example 2 Table 21: Single Duct Wiring Example 2 Bill of Materials Component Description Part Number...
  • Page 59 The following table illustrates the selections made through HVAC PRO for Windows for this example. Note: The examples contained in this technical bulletin do not reflect all of the possible questions and answers. These examples are provided as a basic overview of wiring locations you might expect to see.
  • Page 60 120/24VAC 120VAC 24VAC Power Zone Transformer Sensor BINARY OUTPUTS ANALOG INPUTS BINARY IN Lighting Relay Damper Actuator Basbd Heat Heat vavwe3a Figure 28: Single Duct Wiring Example 3 Table 23: Single Duct Wiring Example 3 Bill of Materials Component Description Part Number Digital Controller AS-VAV110-1...
  • Page 61 The following table illustrates the selections made through HVAC PRO for Windows for this example. Note: The examples contained in this technical bulletin do not reflect all of the possible questions and answers. These examples are provided as a basic overview of wiring locations you might expect to see.
  • Page 62 Zone Sensor VAV111-1 BIN ARY OUTPUTS ANALOG INPUTS BINARY IN DPT1 OUT 1 Incremental COM 2 Box Damper Box Heat VDC 3 Actuator Actuator Proportional Relay Valve Actuato Baseboard vavwe6a Figure 30: Single Duct Fan Powered Box Wiring Example 4 Table 25: Fan Powered Box Wiring Example 4 Bill of Materials Component Description Part Number...
  • Page 63 Dual Duct The following examples are created by answering configuration questions 7 5 F 7 6 F 7 7 F Applications using HVAC PRO for Windows to identify terminal locations of the inputs and outputs. Refer to the HVAC PRO for Windows User’s Manual (FAN 637.5), the VAV Controller section, for detailed information regarding controller configuration.
  • Page 64 Select VAV Control Strategy 1. Pressure Independent 2. Constant Volume 3. Single Duct Conversion 4. Ind. Cold Deck with Dep. Hot Deck DPT Locality Select Damper 1. Hot and Cold Deck 1. Incremental 2. Hot Deck and Total Flow 2. Proportional 3.
  • Page 65 Define Remote AI Points 1. None 2. Cooling/Heating Setpoints 3. Warmer/ Cooler Adjust Define "Occupied" Mode 1. Software (N2) Command 2. Hardware BI point 3. Both with BI Backup 4. Both can Activate Define "Standby" Mode 1. Software (N2) Command 2.
  • Page 66 Table 26: Dual Duct Hardware Point Assignments and Options Point Type Point HVAC PRO for Windows Configuration HVAC PRO for Windows Name Assignments and Defaults Configuration Options Analog Inputs AI 1 Zone Temperature None AI 2 Unused Rename Cooling Setpoint Warmer/Cooler Adjust AI 3 Unused...
  • Page 67 The following table illustrates the selections made through HVAC PRO for Windows for this example. Note: The examples contained in this technical bulletin do not reflect all of the possible questions and answers. These examples are provided as a basic overview of wiring locations you might expect to see.
  • Page 68 120/24VAC 120VAC 24VAC Power RM-T Transformer RM-SP BINARY OUTPUTS ANALOG INPUTS BINARY IN DPT2 Flow Sensor DPT1 Damper Flow Sensor Actuator OUT 1 COM 2 OUT 1 VDC 3 COM 2 VDC 3 Damper Actuator vavwe4a Figure 34: Dual Duct Wiring Example 1 Table 28: Dual Duct Wiring Example 1 Bill of Materials Component Description Part Number...
  • Page 69 The following table illustrates the selections made through HVAC PRO for Windows for this example. Note: The examples contained in this technical bulletin do not reflect all of the possible questions and answers. These examples are provided as a basic overview of wiring locations you might expect to see.
  • Page 70 120/24VAC 120VAC 24VAC Power Room Transformer Sensor BIN ARY OUTPUTS ANALOG INPUTS BINARY IN Lighting Relay DPT1 OUT 1 COM 2 Damper Actuator VDC 3 DPT2 OUT 1 Damper COM 2 Actuator VDC 3 vavwe5a Figure 36: Dual Duct Wiring Example 2 Table 30: Dual Duct Wiring Example 2 Bill of Materials Component Description Part Number...

  • Page 71: Downloading/Commissioning

    Downloading/Commissioning 7 8 F 7 9 F 8 0 F We recommend that you connect the zone sensor prior to performing the initial configuration download. Even if you do not permanently install the zone sensor at this time, terminate the N2 Bus wiring and pull it back to the equipment room location of the NCM or Companion System.
  • Page 72 Incremental The stroke time of an incremental valve actuator is important because the 8 4 F 8 5 F 8 6 F Valve Actuator controller uses it to position the actuator in reference to an analog 0-100% Stroke Time open position command. If the stroke time is grossly inaccurate, the controller drives the actuator under an incorrect assumption of total stroke time and causes inaccurate positioning, particularly at the near closed or near full open positions.
  • Page 73 Incremental The position accuracy of the VAV box damper is dependent upon the 8 7 F 8 8 F 8 9 F Damper actuator stroke time entered. It is important that the true damper actuator Actuator Stroke stroke time be entered. The listed actuator times of 1, 2, or 5.5 minutes are Time for 90 degrees of rotational travel.
  • Page 74 74 VAV Controller—Variable Air Volume Controller...

  • Page 75: Troubleshooting

    Troubleshooting 9 3 F 9 4 F 9 5 F We recommend that once the mechanical contractor starts receiving Hardware delivery of the VAV boxes with factory mounted controls, arrangements Installation are made to pull a sample of the shipment and bench test it by loading a job Inspection configuration before all the boxes are mounted in the ceiling.
  • Page 76 Installation Inspect the mounted VAV to ensure proper installation. Refer to the 9 9 F 1 0 0 F 1 0 1 F Checkout appropriate illustrations in the section of this technical bulletin titled Installation Procedures and to the engineering drawings. Check that the mounting screws holding the subassembly onto the base frame are secure.
  • Page 77 Field Device This section assists you in measuring field wiring terminated to the VAV. Wiring Isolation – If you are confident that the field wiring has no earth grounds, you may go VAV100/101 to the following section called Power Transformer Isolation - VAV100/101. A field device that is earth grounded becomes apparent when you test the entire controller.
  • Page 78 • Power Before connecting the transformer to the VAV, connect the input 1 0 2 F Transformer power to the primary leads of the 24 VAC transformer. Isolation – Note: If you ground the secondary of the power transformer, you VAV100/101 must use a separate 24 VAC to 24 VAC isolation transformer (such as the Y65GS.)
  • Page 79 Load Isolation – If the field wires are not yet connected (because you skipped the section VAV100/101 called Field Device Wiring Isolation - VAV100/101), disconnect one 24 VAC wire and terminate the field wires. Reconnect the 24 VAC wire. Note: If you ground the contactor or solenoid coils to be driven by the VAV, you must use a separate isolation relay for each load.
  • Page 80 If you read a value less than 5 VDC/VAC, the circuit is properly isolated. A value of less than 0.10 VDC/VAC indicates a completely isolated circuit. Connect the DVM across the 24 VAC and the 24 VAC Common terminal of the VAV. Read the voltage with all typical loads energized.
  • Page 81 Troubleshooting The following table indicates symptoms and corrections for typical control 1 0 3 F 1 0 4 F 1 0 5 F the VAV system malfunctions (primarily in pressure independent applications). We Controller with recommend that you use HVAC PRO for Windows Commissioning mode HVAC PRO for during all troubleshooting procedures.
  • Page 82 Troubleshooting You need to troubleshoot the N2 Bus if the Metasys system is not 1 0 6 F 1 0 7 F 1 0 8 F the N2 Bus and properly communicating with the VAVs. This section first presents a Networked VAV troubleshooting table.
  • Page 83 Table 36 lists and describes the errors that may occur while using the Zone Bus 1 1 2 F 1 1 3 F 1 1 4 F HVAC PRO for Windows commissioning tool with the VAVs over the Troubleshooting Zone Bus. The cause of the error is often a loose or improper connection -- HVAC PRO between the CBLPRO (AS-CBLPRO), laptop PC, and the controller.
  • Page 84 The green LED on the VAV110/111 and VAV140/141 Series Controllers may be used to troubleshoot problems with the Zone Bus. Table 37: Zone Bus LED Indications LED Status Indication There is no power to the ASC. The Zone Bus is shorted to Common or 24 VAC. Blinking Normal communication is taking place.

  • Page 85: Ordering Information

    Ordering Information 1 1 5 F 1 1 6 F 1 1 7 F Johnson Controls Code Numbers Controllers Table 38: Controller Code Numbers Code Number Description AS-VAV110-1 VAV Controller with eight Binary Outputs (Quick Connects) VAV Controller with six Binary Outputs and two Analog Outputs AS-VAV111-1 (Quick Connects) VAV Controller with screw terminals and eight BOs...
  • Page 86 Damper Actuator Table 40: Damper/Actuator Code Numbers Assemblies Code Number Description 2-minute Rotation Time 24 VAC Incremental EDA-2040-21 or -22 EDA-2040-61 or -62 6-minute Rotation Time 24 VAC Incremental ATP-2040-212 EDA-2040-1 and DPT-2015-1 with 24 VAC Incremental Cable 1 to 5 VDC Transmitter EDA-2040-2 and DPT-2015-1 with 24 VAC Incremental ATP-2040-612...
  • Page 87 Accessories Table 42: Accessories Code Numbers Code Number Description Zone Bus Communication Tool AS-CBLPRO-2 AS-ENC100--0 VAV System Enclosure for Field Installed Systems (Sheet Metal) AS-TBKIT-0 Five Replacement N2 Bus and Five Power Terminal Block Connectors Transformer (50 VA) AS-XFR050-0 Zone Terminal AS-ZTU100-1* EN-EWC10-0 Enclosure (UPM)
  • Page 88 Use the following table to order cable components for creating your own cables. Table 44: Cable Components Description Part Number CM-00424BAG-3 1000 ft/300 m Roll of Non-plenum Rated 24 Gauge/0.6 mm diameter 8 Conductor Solid Wire CMP-0042EAC-3 1000 ft/300 m Roll of Plenum Rated 24 Gauge/0.6 mm diameter 8 Conductor Solid Wire...
  • Page 89 Specifications Table 45: General Specifications Variable Air Volume (VAV) Controller Product Name Product Code Numbers AS-VAV100-0, AS-VAV101-0; AS-VAV110-1, AS-VAV111-1; AS-VAV140-1, AS-VAV141-1 20-30 VAC @ 10 VA Power Input Power Draw VAV with sensors/transmitters: 10 VA (400 mA) Ambient Operating 32 to 122°F/0 to 50°C Conditions 10 to 90% RH Ambient Storage...
  • Page 90 Table 46: Input/Output Specifications for VAV 100/101 Function Reso- Sam- Accu- Range DC Input Sensor/ Noise Noise/Surge lution pling racy Imped- Load Protection* Standard Time ance Impedance Tested To* ±20 mV 0-2 V or AI-Voltage 14 bit 1.5 sec 470k ohm 0-5k ohm NM ResCap 0-10 VDC + CM Cap...
  • Page 91 Table 47: Input/Output Specifications for VAV 110/111 and VAV 140/141 Function Reso- Sam- Accu- Range DC Input Sensor / Noise Noise/Surge lution pling racy Imped- Load Protection* Standard Time ance Impedance Tested To* 1.5 sec ±20 mV 0-2 V or AI-Voltage 14 bit 470k ohm 0-5k ohm...
  • Page 92 Notes Controls Group FAN 636.3 507 E. Michigan Street Application Specific Controllers Manual P.O. Box 423 Printed in U.S.A. Milwaukee, WI 53201 92 VAV Controller—Variable Air Volume Controller...

This manual is also suitable for:

Metasys vav111Metasys vav101Metasys vav100Metasys vav141Metasys vav140Vav100/101 ... Show all

Table of Contents