Metasys Integrator McQuay Application

Transcription

1 Metasys Connectivity Technical Manual. Metasys Integrator Section Application Note Issue Date 000 APPLICATION NOTE Metasys Integrator McQuay Application Introduction Page * Application Details * Component Requirements * Vendor Contact Information Design Considerations Cable Connections OPM Cable Pinouts Connecting the Cable Direct Connection Metasys Integrator Setup * Point Mapping Tables Centrifugal Chiller Points * Series 00 Centrifugal Chiller Points * Lead/Lag Load Balance Operation Points for Series 00 Centrifugal and Flooded Screw Chillers 0 Series 00 Flooded Screw Chiller Points * C Vintage Water-cooled Chiller Points * Reciprocating Chiller Points * Applied Rooftop Points * Unit Ventilator Points * Water Source Heat Pump Points * * Indicates those sections where changes have occurred since the last printing. 000 Johnson Controls, Inc. Code No. LIT-0

2 Large Heat Pump Points Page *0 Loop Water Controller Points * Lead/Lag Load Balance Controller Points Self-Contained Air Conditioning Unit Points * Absorption Chiller Points Screw Chiller ( Compressor) Points * Screw Chiller ( Compressor) Points * Screw Chiller ( Compressor) Points * Screw Chiller ( Compressor) Points * Metasys Network Setup Mapping to a CS Object * Custom Integration * * Indicates those sections where changes have occurred since the last printing. Metasys Integrator Metasys Integrator McQuay Application

3 Introduction This document explains Metasys Integrator McQuay applications. Use this document with the Metasys Integrator technical bulletins in the Metasys Connectivity Technical Manual (FAN.) which provides information on installing and commissioning the Metasys Integrator unit. For information on McQuay equipment, see McQuay documentation (obtainable from a McQuay representative). Note: If you use a Universal Packaging Module (UPM) enclosure, you must install the Metasys Integrator 00 Series in a two high enclosure (EN-EWC-0) rather than a one high enclosure (EN-EWC-0) as shown in the figures in this application note. Application Details The Metasys Integrator unit allows McQuay equipment to become an integral part of the Metasys and Metasys Companion Networks. Once McQuay controllers are connected to Metasys or Companion systems via the Metasys Integrator, McQuay controllers data is available to the full complement of Metasys Building Automation System (BAS) features including Change-of-State (COS) monitoring, alarm notification, scheduling, trend, and totalization. McQuay Open Protocol Master (OPM) is the interface between McQuay controllers and non-mcquay devices such as the Metasys Integrator unit. The OPM allows status information and commands to be transmitted between the controllers and the Metasys or Companion Network. Each Metasys Integrator unit vendor port can connect to one OPM. Each OPM can connect to up to McQuay controllers. The Metasys Integrator unit supports the McQuay applications listed in Table. You can connect a single piece of McQuay equipment directly to a Metasys Integrator unit vendor port without an OPM. Therefore, a -port Metasys Integrator unit panel can control two chillers or rooftop units without an OPM. See the Cable Connections section of this document for additional information. See your McQuay representative for further setup and connection information. Metasys Integrator Metasys Integrator McQuay Application

4 McQuay International requires that connectivity to their networked systems be licensed for Open Protocol. Each site requires a license fee. If an Open Protocol Master (OPM) is required, this fee is usually built into the cost of this equipment. Direct connection via RS- to a single piece of equipment does not require an OPM. The direct connection does, however, require the site to be licensed for Open Protocol. Make the customer aware of the fee, and consult a McQuay representative for licensing cost. The Metasys Integrator unit supports other McQuay products not listed in this application note. For more information, see the Custom Integration section in this technical bulletin. Figure shows McQuay and Metasys integration. Figure shows McQuay and Metasys Companion integration. N LAN MicroTech Controller Metasys Integrator RS- RS- Or Open Protocol Master Unitary (UNT) Controller N Bus Centrifugal Chiller Water Source Heat Pump Unit Ventilator Applied Rooftop Loop Water Controller intmcqy Note: If you use a UPM enclosure, you must install the Metasys Integrator 00 Series in a two high enclosure (EN-EWC-0) rather than a one high enclosure (EN-EWC-0) as shown in the figures in this application note. Figure : McQuay and Metasys Integration Metasys Integrator Metasys Integrator McQuay Application

5 Panel Unit M Workstation RS- Metasys Integrator UNT N Bus Reciprocating Chiller Centrifugal Chiller Water Source Heat Pump Unit Note: A PC version and converter may be substituted for the Panel Unit. Applied Rooftop Controller Mcqucomp Note: If you use a UPM enclosure, you must install the Metasys Integrator 00 Series in a two high enclosure (EN-EWC-0) rather than a one high enclosure (EN-EWC-0) as shown in the figures in this application note. Figure : McQuay and Metasys Companion Integration Component Requirements To integrate McQuay equipment, you need the following: Properly installed McQuay OPM and McQuay controllers RS- cable (for connecting the OPM to the Metasys Integrator unit) Metasys Integrator unit N Bus (for connecting the Metasys Integrator unit to the Metasys or Companion Network) Portable Personal Computer (PC) for downloading vendor communication tables (.VCT files) and network setup information into the Metasys Integrator unit and for running diagnostics Cable for connecting portable PC to the Metasys Integrator unit The correct vendor communication table (.VCT file) to download into the Metasys Integrator unit (supplied on CD-ROM) This document describes the RS- cable and the vendor communication tables. McQuay documentation describes their equipment. The remaining components are described in the Metasys Integrator technical bulletins in the Metasys Connectivity Technical Manual (FAN.). Metasys Integrator Metasys Integrator McQuay Application

6 Metasys Release Requirements Metasys Companion Release Requirements Vendor Component Requirements To integrate McQuay equipment into the Metasys Network, you need the following: Metasys Operator Workstation (OWS) software Release.0 or higher Metasys Integrator unit software/firmware Release.0 or higher To integrate McQuay equipment into the Metasys Companion Network, you need the following: Metasys Companion Release.0 or higher Metasys Integrator unit software/firmware Release.0 or higher Integration between the Metasys Integrator unit and McQuay has been tested with the equipment listed in Table. Changes to this equipment or integration of McQuay products not discussed in this document require additional software development and testing by Systems Products. For information on integrating other products, see the Custom Integration section in this technical bulletin. Metasys Integrator Metasys Integrator McQuay Application

7 Table : McQuay Software Version Numbers McQuay Product Software Version Number* Centrifugal Chiller Series 00 Centrifugal Chiller Lead/Lag Load Balance for Series 00 Centrifugal and Flooded Screw Chillers Series 00 Flooded Screw Chiller Reciprocating Chiller Unit Ventilator Water Source Heat Pump Large Heat Pump Loop Water Controller Applied Rooftop Constant Volume/Return Air Applied Rooftop Constant Volume/00 Outside Air Applied Rooftop Variable Air Volume (VAV)/One Stage Heat Applied Rooftop VAV/Modulating Heat Lead/Lag Load Balance Controller Self-Contained Air Conditioning Unit Open Protocol Master Absorption Chiller Screw Chiller ( compressor) Screw Chiller ( compressor) Screw Chiller ( compressor) Screw Chiller ( compressor) * An x indicates any character is valid. PC0x PDR0x CFGxE0xx n/a PESxE0X RCPxE0x UVxSx UVxSx UVxSx HPPx LPP0x LWCx ARTE0xx ARTE0xx ARTE0xx ARTE0xx DUA0x 0000x OPM0x 0x0x SCXU0x SCxU0x SCxU0x SCxU0x Vendor Contact Information McQuay International 00 Industrial Park Blvd. Plymouth, MN - Phone: () -0 FAX: () - Metasys Integrator Metasys Integrator McQuay Application

8 Design Considerations When integrating McQuay equipment, keep the following considerations in mind: Make sure all McQuay equipment is set up and running properly before attempting to integrate with the Metasys or Companion Network. (The McQuay representative is responsible for operation of OPM and controllers.) The representative must set the number of L slaves to 0. Refer to the McQuay Open Protocol Instructions for Converting an ASC (Part Number 0000) to an OPM. Make sure the OPM baud rate is set to 00. (The McQuay representative is responsible for setting the OPM baud rate.) RS- cable distance between Metasys Integrator and the OPM can be a maximum of 0 feet. Cable distance between the OPM and the last controller can be a maximum of,000 feet. The Lead/Lag Load Balance (LLLB) controller replaces the OPM in a network with two centrifugal chillers. In addition to all the functions of an OPM, the LLLB performs lead/lag control and load balancing for the chillers based on a McQuay algorithm. When using an LLLB controller, do not control the chillers through their output points (which you have mapped to Metasys objects or Companion points). The Metasys system starts and stops a Centrifugal or Reciprocating chiller through the Network Command Start/Stop point,. A RAM location stores the value sent to the McQuay controller. If the McQuay controller loses power (as in a building power failure), the RAM location is cleared. In the case of restart after a power fail, the Metasys system has two features that will affect the state of : Auto Restore and Fast Clock. After a restart, Fast Clock reads all weekly schedules and updates with the appropriate scheduled command. If there is no schedule, is automatically restored to its last commanded condition. In the unlikely event that the Metasys system does not come back online after building power is restored, the McQuay chiller will initiate a start sequence on its own. (For more information on Auto Restore and Fast Clock, see the Binary Output [] Object Technical Bulletin [LIT-00].) To use the Applied Rooftop with network support, the scan time for the port must be less than minute. The time constraint is because there is a register () in the rooftop unit that must have a value greater than zero written to it at least once a minute to keep the temperature control set to Network. For direct connection, order plug setup for RS- pigtail, McQuay Part Number Metasys Integrator Metasys Integrator McQuay Application

9 Cable Connections OPM Cable Pinouts Use the following cable pinouts for the RS- connection between the Metasys Integrator unit and the McQuay Open Protocol Master: Vendor Port A or B on Metasys Integrator DB- Female Port A on OPM Screw Terminal Signal DCD DTR RD TD GND DSR RTS CTS Pin RS- (0 ft maximum) Terminal Signal TD RD GND intmcqy Figure : Cable Pinouts Connecting the Cable Connect the female end of the RS- cable to either Vendor Port A or Vendor Port B on the Metasys Integrator unit. Connect the male end to Port A on the OPM. Vendor Port A or B On Metasys Integrator DB- Female Signal GND Pin RS- Top View of RS- Controller Plug on Pigtail TD RD Mcq Figure : Direct Connection using McQuay Pigtail Direct Connection Direct connection of a single McQuay device to the Metasys Integrator unit is possible. See McQuay Certified Drawing Number Y for all possible cable pinouts and connections. Note that, on the Metasys Integrator unit DB-, RD (Pin ) corresponds to (+), and TD (Pin ) corresponds to ( ). Metasys Integrator Metasys Integrator McQuay Application

10 0 Metasys Integrator Metasys Integrator McQuay Application

11 Metasys Integrator Setup To set up the Metasys Integrator unit, use a portable PC connected to the Metasys Integrator Terminal Port. The Metasys Integrator unit setup involves: downloading the correct vendor communication table (.VCT file) setting up the ports assigning network addresses to the controllers The following table provides information specific to McQuay applications. For detailed procedures, see the Metasys Integrator technical bulletins in the Metasys Connectivity Technical Manual (FAN.). Table : Metasys Integrator Setup for McQuay Controllers Vendor Communication Table (.VCT File) Centrifugal Chiller Series 00 Centrifugal Chiller Lead/Lag Load Balance Table for Series 00 Centrifugal and Flooded Screw Chillers Series 00 Flooded Screw Chiller Water-cooled Screw Chiller Reciprocating Chiller Applied Rooftop Applied Rooftop with Network Support Unit Ventilator Water Source Heat Pump Large Heat Pump Loop Water Controller Lead/Lag Load Balance Self-Contained Air Conditioning Unit Absorption Chiller Screw Chiller ( compressor) Screw Chiller ( compressor) Screw Chiller ( compressor) Screw Chiller ( compressor) Continued on next page... SG_CENC.VCT SG_CENC.VCT SG_CCLB.VCT SG_SFS.VCT SG_WCSC.VCT SG_RCPC.VCT SG_RTUA.VCT SG_RTUAN.VCT SG_UVNT.VCT SG_WSHP.VCT SG_LHP.VCT SG_XLWC.VCT SG_LLLB.VCT SG_SCAC.VCT SG_ABSC.VCT SG_SC.VCT SG_SC.VCT SG_SC.VCT SG_SC.VCT Metasys Integrator Metasys Integrator McQuay Application

12 Network Setup (Cont.) Port Setup Baud Rate 00 Word Length Stop Bits Parity Interface Vendor Address* Timeout Value Poll Delay Performance Guide Approximate Scan Time (For a single N address) Centrifugal Chiller Series 00 Centrifugal Chiller Lead/Lag Load Balance for Series 00 Centrifugal and Flooded Screw Chillers Series 00 Flooded Screw Chiller Water-cooled Screw Chiller Reciprocating Chiller Applied Rooftop Applied Rooftop With Network Support Unit Ventilator Water Source Heat Pump Large Heat Pump Loop Water Controller Lead/Lag Load Balance Self-Contained AC Unit Absorption Chiller Screw Chiller Screw Chiller Screw Chiller Screw Chiller Even RS- ppppppppllss: pppppppp = hexadecimal password* ll = level controller address ss = level controller address 000 ms ms seconds 0 seconds seconds 0 seconds seconds seconds seconds seconds seconds seconds seconds seconds seconds seconds seconds seconds seconds seconds seconds * The password consists of eight alphanumeric characters. If there are alpha characters in your password or in the hex address of a device, you must enter these characters in upper case. For more information on the vendor address parameters, see a McQuay representative. Metasys Integrator Metasys Integrator McQuay Application

13 Table contains a quick reference for McQuay application addressing. Addresses are shown in the way they must be set up. Detailed connection and addressing information is available from McQuay Controls and Network Systems Certified Drawing, MicroTech Open Protocol Wiring Diagrams. Table : McQuay Addressing Quick Reference Application Address Format Range of aa (Hex) Centrifugal Chiller aa0 0 to FF Series 00 Centrifugal Chiller Lead Lag/Load Balance Panel aa00 aa to FF Water-cooled Screw Chiller aa00 0 to FF Reciprocating Chiller aa00 0 to FF Applied Rooftop aa00 0 to FF Unit Vent aa00 0 to FF Water Source Heat Pump aa00 0 to FF Large Heat Pump aa00 0 to FF Loop Water Control aa00 0 to FF Absorption Chiller aa00 0 to FF Screw Chillers aa00 0 to FF Metasys Integrator Metasys Integrator McQuay Application

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15 Point Mapping Tables The following tables (one for each application) show the points available for mapping in the McQuay controllers: Centrifugal Chiller Points To get the hardware reference for mapping points to Control System (CS) object attributes (via the software model), combine the NPT (Network Point Type) and NPA (Network Point Address). For example, the hardware reference for the Lift Pressure point is. Table : Centrifugal Chiller Points NPT NPA Unit Description 0 0 ma RLA High Resolution Points* Leaving Evaporator Water Temperature Entering Evaporator Water Temperature Evaporator Refrigerant Temperature Compressor Suction Temperature Liquid Line Refrigerant Temperature Entering Condenser Water Temperature Leaving Condenser Water Temperature Compressor Discharge Temperature Condenser Refrigerant Temperature Oil Feed Temperature Oil Sump Temperature Ampere Limit Signal Motor Current Percent (Rated Load Amperes) Oil Differential Pressure Evaporator Refrigerant Pressure Condenser Refrigerant Pressure Lift Pressure Oil Gauge Pressure Superheat Temperature Liquid Subcool Temperature Approach Temperature Leaving Evaporator Water Temperature, Valid Range 0- Entering Evaporator Water Temperature, Valid Range 0- Evaporator Refrigerant Temperature, Valid Range 0- Compressor Suction Temperature, Valid Range 0- Liquid Line Refrigerant Temperature, Valid Range -0 Entering Condenser Water Temperature, Valid Range -0 Leaving Condenser Water Temperature, Valid Range -0 Network Point Type Network Point Address * Use these points when better resolution is required. The value of these points is limited to the ranges specified. A value equal to the low or high range indicates the current value is outside the range. When the value is out of range, refer to the expanded values from to. Continued on next page... Metasys Integrator Metasys Integrator McQuay Application

16 NPT (Cont.) NPA Unit Description RLA Network Point Type Network Point Address Continued on next page... Surge Guard Switch 0-surge, -ok Motor Temperature Switch 0-high temp, -ok Oil Pressure Differential Switch 0-low pres, -ok High Discharge Pressure Switch 0-high pres, -ok Evaporator Low Pressure Switch 0-low pres, -ok Panel Rocker Switch 0-stop, -auto Starter Fault Switch 0-fault, -ok Condenser Water Flow Switch 0-no flow, -ok Evaporator Water Flow Switch 0-no flow, -ok Starter Transition Switch 0-fault, -ok Remote Start/Stop Switch 0-stop, -start Vanes Closed Switch 0-open, -closed Unload Solenoid 0-off, -on Load Solenoid 0-off, -on Hot Gas Solenoid 0-off, -on Motor Control Latch Relay 0-off, -on Motor Control Latch Relay 0-off, -on Oil Heater 0-off, -on Liquid Injector Solenoid 0-off, -on Alarm Contact 0-alarm, -normal Cooling Tower Stage 0-off, -on Cooling Tower Stage 0-off, -on Evaporator Pump 0-off, -on Condenser Pump 0-off, -on Oil Pump 0-off, -on Motor Control Relay 0-off, -on Entering Water Reset 0-inactive, -active Remote Chill Water Reset 0-inactive, -active Low Evaporator Pressure Limit 0-inactive, -active Maximum Ampere Limit 0-inactive, -active Manual Ampere Limit 0-inactive, -active Remote Ampere Limit 0-inactive, -active Leaving Evaporator Water Temperature Setpoint (-) Network Chill Water Reset Signal (0-00) Network Ampere Reset (0-00) Maximum Chilled Water Reset Setpoint (0-) Reset Option (,) Startup Differential Temperature (-0) Shutdown Differential Temperature (-0) Start Mode (,) Metasys Integrator Metasys Integrator McQuay Application

17 NPT (Cont.) NPA Unit Description 0 Code Code Code Code Code Code Code Code Code Code Network Command Start/Stop 0-disable, -enable Clear Current Fault 0-n/a, -clear Soft Reset 0-n/a, -reset Unit Status Code Current Fault Fault (Last Fault) Fault Fault Fault Fault Fault Fault Fault Operating s Number of Starts Network Point Type Network Point Address A list of codes (in ASCII format) is located on The Advisor. The codes may be displayed or printed as needed. Do not map these points to Companion points. If you map these points to Metasys objects, make sure the Auto Restore option in the object Definition and Focus window is disabled. Metasys Integrator Metasys Integrator McQuay Application

18 Series 00 Centrifugal Chiller Points To get the hardware reference for mapping points to CS object attributes (via the software model), combine the NPT (Network Point Type) and NPA (Network Point Address). For example, the hardware reference for the Compressor Lift Pressure point is. Table : Series 00 Centrifugal Chiller Points NPT NPA Unit Description GPM GPM Amperes ppm Network Point Type Network Point Address Continued on next page... Chilled Water Temperature - Active Setpoint Outdoor Air Temperature - Network Evaporator Water Temperature - Entering Evaporator Water Temperature - Leaving Evaporator Water Temperature - Delta Condenser Water Temperature - Entering Condenser Water Temperature - Leaving Condenser Water Temperature - Delta Condenser Heat Recovery Water Temperature - Entering Condenser Heat Recovery Water Temperature - Leaving Condenser Heat Recovery Water Temperature - Delta Evaporator Refrigerant Temperature Evaporator Approach Temperature Condenser Refrigerant Temperature Condenser Subcooling Temperature Condenser Approach Temperature Liquid Line Refrigerant Temperature Compressor Suction Temperature Compressor Superheat - Discharge Compressor Superheat - Suction Discharge Refrigerant Temperature Evaporator Water Flow Rate Condenser Water Flow Rate Evaporator Refrigerant Pressure Condenser Refrigerant Pressure Compressor Lift Pressure Oil Temperature - Feed Oil Temperature - Sump Oil Pressure - Feed Oil Pressure - Net Oil Pressure - Vent Compressor Motor Current Compressor Motor Current Percent Cooling Tower Valve Position Refrigerant Leak Detection Limit Metasys Integrator Metasys Integrator McQuay Application

19 NPT (Cont.) NPA Unit Description 0 Code Any Fault 0-ok, -fault Condenser Water Flow Status 0-no flow, -flow Evaporator Water Flow Status 0-no flow, -flow Evaporator Pump On 0-off, -on Evaporator Pump On 0-off, -on Condenser Pump On 0-off, -on Condenser Pump On 0-off, -on Evaporator Water Rate Sensor 0-not present, -present Condenser Water Rate Sensor 0-not present, -present Refrigerant Detection Sensor 0-not present, -present Condenser Heat Recovery 0-not present, -present Cooling Tower Control 0-external, -chiller Chiller Unit Temperature Type 0-standard, -low temp Chilled Water Temperature Setpoint (0-0) Chiller Operation Mode (0-stop, -recirculate, -run) Capacity Limit Percent (0-00) Outdoor Air Temperature - BAS (-0 to ) Clear Current Fault 0-n/a, -clear Code Unit Status Code Current Active Fault Code Condenser Pump Status (0-) Code Evaporator Pump Status (0-) Code Cooling Tower Stage (0-) Code Refrigerant Type (-R, -R, -Ra, -R, -R00) Compressor Number of Starts Compressor Operating s Condenser Pump Operating s Condenser Pump Operating s Evaporator Pump Operating s Evaporator Pump Operating s Network Point Type Network Point Address A list of codes (in ASCII format) is located on The Advisor. The codes may be displayed or printed as needed. Do not map these points to Companion points. If you map these points to Metasys objects, make sure the Auto Restore option in the object Definition and Focus window is disabled. Metasys Integrator Metasys Integrator McQuay Application

20 Lead/Lag Load Balance Operation Points for Series 00 Centrifugal and Flooded Screw Chillers To get the hardware reference for mapping points to CS object attributes (via the software model), combine the NPT (Network Point Type) and NPA (Network Point Address). For example, the hardware reference for the Lead Motor Current point is. Table : Lead/Lag Load Balance Operation Points for Series 00 Centrifugal and Flooded Screw Chillers NPT NPA Unit Description RLA RLA Code Code Code Code Code Network Point Type Network Point Address Lead Motor Current Lag Motor Current Lead Unit 0-master, -slave Lead Status 0-disabled, -enabled Lag Status 0-disabled, -enabled Lead/Lag Mode Setpoint (0-) 0=master is lead, =slave is lead, =auto select Enable Lag Setpoint (0-00) Disable Lag Setpoint (0-00) Lead/Lag Switch Setpoint (Day) (0-) 0=n/a, -=sunday-saturday Lead/Lag Switch Setpoint () (0-) Master/Slave Setpoint 0-master, -slave Lag Standby Setpoint 0-no, -yes Lead/Lag Status 0=both off, =lead on, =lag on, =both on Lead Unit Status (Same as Unit Status 00) Lag Unit Status (Same as Unit Status 00) 0 Metasys Integrator Metasys Integrator McQuay Application

21 Series 00 Flooded Screw Chiller Points To get the hardware reference for mapping points to CS object attributes (via the software model), combine the NPT (Network Point Type) and NPA (Network Point Address). For example, the hardware reference for the Chilled Water Temp - Active Setpoint point is. Table : Series 00 Flooded Screw Chiller Points NPT NPA Unit Description Network Point Type Network Point Address Continued on next page... Chilled Water Temperature - Active Setpoint Outdoor Air Temperature - Local Entering Evaporator Water Temperature Leaving Evaporator Water Temperature Delta Evaporator Water Temperature Entering Condenser Water Temperature Leaving Condenser Water Temperature Delta Condenser Water Temperature Evaporator Refrigerant Temperature Evaporator Approach Temperature Evaporator Temperature Condenser Refrigerant Temperature Condenser Subcooling Temperature Condenser Approach Temperature Liquid Line Refrigerant Temperature Compressor Suction Temperature Compressor Superheat - Discharge Compressor Superheat - Suction Discharge Refrigerant Temperature Evaporator Water Flow Rate Condenser Water Flow Rate Evaporator Refrigerant Pressure Condenser Refrigerant Pressure Compressor Lift Pressure Liquid Line Pressure Condenser Differential - Liquid Line Compressor Motor Current Compressor Motor Current Percent Cooling Tower Valve Position Any Fault 0-ok, -fault Condenser Water Flow Status 0-no flow, -flow Evaporator Water Flow Status 0-no flow, -flow Evaporator Pump On 0-off, -on Evaporator Pump On 0-off, -on Condenser Pump On 0-off, -on Condenser Pump On 0-off, -on Evaporator Water Rate Sensor 0-not present, -present Condenser Water Rate Sensor 0-not present, -present Refrigerant Detection Sensor 0-not present, -present Cooling Tower Control 0-external, -chiller Chiller Unit Temperature Type 0-standard, -low temp Communications Signal 0-no comm, -comm Metasys Integrator Metasys Integrator McQuay Application

22 NPT (Cont.) NPA Unit Description Chilled Water Temperature Setpoint (0-0) Code Chiller Operation Mode 0-stop, -n/a, -recirculate, -run Capacity Limit Percent, (0-00) Outdoor Air Temperature - BAS, (0-) Code Outdoor Air Temp Method 0-none, -local, -network Clear Current Fault 0-n/a, -clear Code Code Code Code Code Code Unit Status Current Active Fault Condenser Pump Status (0-) Evaporator Pump Status (0-) Cooling Tower Stage (0-) Outdoor Air Temperature Method (0-) Compressor Number of Starts Compressor Operating s Condenser Pump Operating s Condenser Pump Operating s Evaporator Pump Operating s Evaporator Pump Operating s Network Point Type Network Point Address Do not map these points to Companion points. If you map these points to Metasys objects, make sure the Auto Restore option in the object Definition and Focus window is disabled. Metasys Integrator Metasys Integrator McQuay Application

23 C Vintage Water-cooled Chiller Points To get the hardware reference for mapping points to CS object attributes (via the software model), combine the NPT (Network Point Type) and NPA (Network Point Address). For example, the hardware reference for the Condenser Approach Temperature point is 0. Table : C Vintage Water-cooled Chiller Points NPT NPA Unit Description GPM GPM Network Point Type Network Point Address Continued on next page... Chilled Water Temperature Active Setpoint Entering Evaporator Water Temperature Leaving Evaporator Water Temperature Delta Evaporator Water Temperature Entering Condenser Water Temperature Leaving Condenser Water Temperature Delta Condenser Water Temperature Evaporator Approach Temperature Condenser Subcooling Temperature Condenser Approach Temperature Liquid Line Refrigerant Temperature Compressor Suction Temperature Compressor Suction Temperature Compressor Suction Temperature, Ver.. Compressor Suction Temperature, Ver.. Compressor Superheat Discharge Circuit Compressor Superheat Discharge Circuit Compressor Superheat Suction Circuit Compressor Superheat Suction Circuit Discharge Refrigerant Temperature Circuit Discharge Refrigerant Temperature Circuit Evaporator Water Flow Rate Condenser Water Flow Rate Evaporator Refrigerant Pressure Condenser Refrigerant Pressure Compressor Lift Pressure Liquid Line Pressure Liquid Line Condenser Differential Compressor Motor Current Percent Compressor Motor Current Percent Compressor Motor Current Percent, Ver.. Compressor Motor Current Percent, Ver.. Cooling Tower Valve Position Outdoor Air Temperature, Ver.. Metasys Integrator Metasys Integrator McQuay Application

24 NPT (Cont.) NPA Unit Description 0 Code Code Code Code Code Code Code Code Network Point Type Network Point Address Any Fault Circuit, Ver.. 0-ok, -fault Any Fault Circuit, Ver.. 0-ok, -fault Any Fault Circuit, Ver.. 0-ok, -fault Any Fault Circuit, Ver.. 0-ok, -fault Condenser Water Flow Status 0-no flow, -flow Evaporator Water Flow Status 0-no flow, -flow Evaporator Pump On 0-off, -on Evaporator Pump On 0-off, -on Condenser Pump On 0-off, -on Condenser Pump On 0-off, -on Evaporator Water Rate Sensor 0-notpres, -present Condenser Water Rate Sensor 0-notpres, -present Refrigerant Detection Sensor 0-notpres, -present Cooling Tower Control 0-external, -chiller Chiller Unit Temperature Type 0-standard, -lowtemp Chilled Water Setpoint (0-0), Ver.. Outdoor Air Temperature Method (0-none, -loc, -network) Chilled Water Temperature Setpoint, Ver.. Entering Evap. Water Temperature Reset, Ver.. Max Chill Water Reset, Ver.. Max Reset at OAT, Ver.. Network Reset, Ver.. No Reset at OAT, Ver.. Outdoor Air Temperature from BAS, Ver.. Clear Current Fault Circuit 0-n/a, -clear Clear Current Fault Circuit 0-n/a, -clear Chiller Operation Mode 0-enable, -disable Unit Status Current Active Fault Current Active Fault Condenser Pump Status (0-) Evaporator Pump Status (0-) Cooling Tower Stage (0-) Outdoor Air Temperature Method (0-) Unit Operating s, Ver.. Condenser Pump Operating s Condenser Pump Operating s Evaporator Pump Operating s Evaporator Pump Operating s Compressor s, Ver.. Compressor s, Ver.. Metasys Integrator Metasys Integrator McQuay Application

25 Reciprocating Chiller Points To get the hardware reference for mapping points to CS object attributes (via the software model), combine the NPT (Network Point Type) and NPA (Network Point Address). For example, the hardware reference for the Motor Current Percent point is. Table : Reciprocating Chiller Points NPT NPA Unit Description 0 Leaving Evaporator Water Temperature Entering Evaporator Water Temperature Leaving Condenser Water Temperature Entering Condenser Water Temperature Circuit Suction Temperature Circuit Suction Temperature Circuit Liquid Line Temperature Circuit Liquid Line Temperature Evaporator Pressure Evaporator Pressure Condenser Pressure Condenser Pressure Motor Current Percent Leaving Evaporator Water Setpoint (0-) Entering Evaporator Water Setpoint (-) Network Demand Limit Setpoint (0-00) Network Command Start/Stop 0-disable, -enable Code Unit Status Code Circuit Status Code Circuit Status Stage of Cooling (-) Code Circuit Current Alarm Status Code Circuit Current Alarm Status Code Circuit Previous Alarm Status Code Circuit Previous Alarm Status Compressor Operating s Compressor Operating s Compressor Operating s Compressor Operating s Compressor Number of Starts Compressor Number of Starts Compressor Number of Starts Compressor Number of Starts Network Point Type Network Point Address A list of codes (in ASCII format) is located on The Advisor. The codes may be displayed or printed as needed. Metasys Integrator Metasys Integrator McQuay Application

26 Applied Rooftop Points To get the hardware reference for mapping points to CS object attributes (via the software model), combine the NPT (Network Point Type) and NPA (Network Point Address). For example, the hardware reference for the Control Temperature point is. Note: There are four versions of McQuay Applied Rooftop Units: Constant Volume/Return Air, Constant Volume/00 Outside Air, Variable Air Volume/One Stage Heat, and Variable Air Volume/Modulating Heat. Not all the points in the table below exist on all four versions of the Applied Rooftop Unit. See McQuay documentation for specific information on the controller you are integrating. The points noted for Network configurations are in a separate.vct file. See Table for a list of.vct files. Table 0: Applied Rooftop Points NPT NPA Unit Description 0 IWC IWC Supply Air Temperature Return Air Temperature Outdoor Air Temperature Space Temperature Mixed Air Temperature Miscellaneous Temperature Miscellaneous Temperature Unused Unused Supply Fan Vane Position Return Fan Vane Position Outdoor Air Damper Position Static Pressure Static Pressure Control Temperature Humidity (Enthalpy) 0-low, -high Unused 0-n/a, -n/a VAV Output 0-heating, -cooling Airflow Status 0-no, -yes Supply Fan Status 0-off, -on Return Fan Status 0-off, -on Network Condition 0-not communicating -communicating Network Point Type Network Point Address Point is specific to a Network Control configuration. Continued on next page... Metasys Integrator Metasys Integrator McQuay Application

27 NPT (Cont.) NPA Unit Description 0 0 Code Code Code IWC IWC Code Code Code Code Code Code Control Mode (off, auto, heat/cool, cool only, heat only, cooling and heating disabled) (0-) Control Temperature Sensor (return, space, network, OAT, none) Heating Space Setpoint (0-) Heating Space Differential (-0) Heating Space Deadband (-0) Cooling Space Setpoint (-) Cooling Space Differential (-0) Cooling Space Deadband (-0) Night Set Back Space Setpoint (0-) Night Set Back Space Diferential (-0) Cooling Supply Setpoint (0-00) Cooling Supply Deadband (0-0) Cooling Reset Type (none, space, return, OAT, net, ext, airflow, humidity reset option) Heating Supply Setpoint (0-00) Heating Supply Deadband (0-0) Duct Static Pressure Setpoint (0-) Static Pressure Deadband (0-) Minimum Outside Airflow (0-00) Economizer Changeover Temperature (0-00) Economizer Changeover Differential (-0) Network Control Temperature (0-00) Network Signal Clear Alarm 0-n/a, -clear Source Setpoint 0-thermostat, -software Static Pressure Reset 0-none, -network Humidity Method 0-OAT, -Enthalpy Unit Status Stage of Heating or Cooling Cooling Control Status Heating Control Status Current Alarm Previous Alarm Fan Operating s Cooling Operating s Heating Operating s Override Operating s Network Point Type Network Point Address Point is specific to a Network Control configuration. A list of codes (in ASCII format) is located on The Advisor. The codes may be displayed or printed as needed. Do not map these points to Companion points. If you map these points to Metasys objects, make sure the Auto Restore option in the object Definition and Focus window is disabled. Metasys Integrator Metasys Integrator McQuay Application

28 Unit Ventilator Points Note: The Metasys Integrator unit writes a value of 0 to the CommStatusRAM location in the Unit Ventilator Controller as a 0 minute watchdog to prevent the controller from reverting to local control and using the default setpoints. To get the hardware reference for mapping points to CS object attributes (via the software model), combine the NPT (Network Point Type) and NPA (Network Point Address). For example, the hardware reference for the Valve/Damper Position point is. Table : Unit Ventilator Points NPT NPA Unit Description 0 Min Code Code Code Room Temperature Discharge Air Temperature Outdoor Air Temperature Mixed Air Temperature Water In Temperature Water Out Temperature for Version.0 Suction Line Temperature for Version. or later Valve/Damper Position Outdoor Air Damper Position Outdoor Air Damper Minimum Position Outdoor Air Damper Position Setpoint Face-Bypass Damper/Valve Position Current (Active) Cooling Setpoint Current (Active) Heating Setpoint Supply Fan Status 0-off, -on Compressor Output Status 0-off, -on Tenant Override Time (0-00) Network Cooling Setpoint (-0) Network Heating Setpoint (-) Clear Fault 0-n/a, -clear Occupied 0-no, -yes Status (0-unoccupied, -occupied, -tenant override) Heat/Cool Mode (0-temp ok, -cooling, -heating) Tenant Setpoint Potentiometer Adjustment (- to +) Fault Supply Fan s Compressor Number of Starts Network Point Type Network Point Address A list of codes (in ASCII format) is located on The Advisor. The codes may be displayed or printed as needed. Do not map these points to Companion points. If you map these points to Metasys objects, make sure the Auto Restore option in the object Definition and Focus window is disabled. Metasys Integrator Metasys Integrator McQuay Application

29 Water Source Heat Pump Points To get the hardware reference for mapping points to CS object attributes (via the software model), combine the NPT (Network Point Type) and NPA (Network Point Address). For example, the hardware reference for the Setpoint Adjustment point is. Table : Water Source Heat Pump Points NPT NPA Unit Description 0 Cmd Hrs Code Code Code Space Temperature Discharge Air Temperature Leaving Water Temperature Current Space Cooling Setpoint Current Space Heating Setpoint Setpoint Adjustment Fan Status 0-off, -on Compressor Status 0-off, -on Change Filter 0-ok, -warn Rapid Cycling 0-ok, -warn Request Flow 0-no, -yes Condensate Overflow 0-ok, -alarm Brownout 0-ok, -alarm Space Temperature Sensor Failure 0-ok, -alarm Low Discharge Air Temperature 0-ok, -alarm Low Refrigerant Pressure 0-ok, -alarm High Refrigerant Pressure 0-ok, -alarm Network Command Not Received 0-ok, -alarm Space Cooling Setpoint - Unoccupied (0-) Space Cooling Setpoint - Occupied (0-) Space Heating Setpoint - Unoccupied (0-) Space Heating Setpoint - Occupied (0-) Unit Command (0-n/a, -enabled, -n/a, -lockout heat, -lockout cool, -lockout compressor, -unit shutdown) Filter Status (0-00) Clear Fault 0-n/a, -clear Occupied 0-no, -yes Supplemental Heat Enable 0-no, -yes Manual Shutdown 0-off, -auto Auxiliary Output 0-no, -yes Operating Mode (0...) Current Fault Previous Fault Compressor Operating s Compressor Number of Starts Network Point Type Network Point Address A list of codes (in ASCII format) is located on The Advisor. The codes may be displayed or printed as needed. Do not map these points to Companion points. If you map these points to Metasys objects, make sure the Auto Restore option in the object Definition and Focus window is disabled. Metasys Integrator Metasys Integrator McQuay Application

30 Large Heat Pump Points To get the hardware reference for mapping points to CS object attributes (via the software model), combine the NPT (Network Point Type) and NPA (Network Point Address). For example, the hardware reference for the Setpoint Adjustment point is. Table : Large Heat Pump Points NPT NPA Unit Description 0 Cmd Hrs Code Code Code Space Temperature Discharge Air Temperature Leaving Water Temperature Current Space Cooling Setpoint Current Space Heating Setpoint Setpoint Adjustment Fan Status 0-off, -on Compressor Status 0-off, -on Change Filter 0-ok, -warn Rapid Cycling 0-ok, -warn Request Flow 0-no, -yes Condensate Overflow 0-ok, -alarm Brownout 0-ok, -alarm Space Temperature Sensor Failure 0-ok, -alarm Low Discharge Air Temperature 0-ok, -alarm Low Refrigerant Pressure 0-ok, -alarm High Refrigerant Pressure 0-ok, -alarm Compressor Status 0-off, -on Network Command Not Received 0-ok, -alarm Space Cooling Setpoint - Unoccupied (0-) Space Cooling Setpoint - Occupied (0-) Space Heating Setpoint - Unoccupied (0-) Space Heating Setpoint - Occupied (0-) Unit Command (0-n/a, -enable, -n/a, -lockout heat, -lockout cool, -lockout compressor, -shutdown) Filter Status (0-00) Clear Fault 0-n/a, -clear Occupied 0-no, -yes Manual Shutdown 0-off, -auto Operating Mode (0...) Current Fault Previous Fault Compressor Critical Fault Compressor Critical Fault Compressor Operating s Compressor Number of Starts Compressor Operating s Compressor Number of Starts Network Point Type Network Point Address A list of codes (in ASCII format) is located on The Advisor. The codes may be displayed or printed as needed. Do not map these points to Companion points. If you map these points to Metasys objects, make sure the Auto Restore option in the object Definition and Focus window is disabled. 0 Metasys Integrator Metasys Integrator McQuay Application

31 Loop Water Controller Points Note: The Metasys Integrator unit writes a decimal value of 0 to the Start/Stop Method address on each offline to online transition. This allows Metasys Integrator to command the Loop Water Controller to on and off using (Loop Request). Both (System Mode) and (OAT Reset Enable) are points in the controller s EEPROM, and care should be taken to limit the number of writes to these points. To get the hardware reference for mapping points to CS object attributes (via the software model), combine the NPT (Network Point Type) and NPA (Network Point Address). For example, the hardware reference for the Boiler Bypass Valve Position point is. Table : Loop Water Controller Points NPT NPA Unit Description 0 0 Network Point Type Network Point Address Continued on next page... Loop Water Supply Temperature Loop Water Return Temperature Entering Tower Temperature Leaving Tower Temperature Outside Air Temperature Entering Boiler Temperature Leaving Boiler Temperature Tank Temperature OAT Reset Temperature Tower Bypass Valve Position Boiler Bypass Valve Position Loop Pump Status 0-off, -on Loop Pump Status 0-off, -on Secondary Pump Status 0-off, -on Secondary Pump Status 0-off, -on Damper Interlock Switch 0-open, -closed Loop Pump Flow 0-no flow, -flow Loop Pump Flow 0-no flow, -flow Secondary Pump Flow 0-no flow, -flow Secondary Pump Flow 0-no flow, -flow Loop Status: Loop On 0-off, -on Lockout Heat 0-false, -true Loop Off - Lockout Compressors 0-false, -true Metasys Integrator Metasys Integrator McQuay Application

32 NPT (Cont.) NPA Unit Description Network Point Type Network Point Address Continued on next page... Manual Loop Supply Temperature (0-0) Tower Supply Temperature Setpoint (-0) Boiler Supply Temperature Setpoint (0-) Maximum OAT Reset (-) No OAT Reset Temperature (0-00) Maximum OAT Reset Temperature (0-0) Heat Reject Setpoints: Cool Stage On (0-0) Cool Stage On (0-0) Cool Stage On (0-0) Cool Stage On (0-0) Cool Stage On (0-0) Cool Stage On (0-0) Cool Stage On (0-0) Cool Stage On (0-0) Cool Stage On (0-0) Cool Stage 0 On (0-0) Cool Stage On (0-0) Cool Stage On (0-0) Cool Stage Off Differential (-) Cool Stage Off Differential (-) Cool Stage Off Differential (-) Cool Stage Off Differential (-) Cool Stage Off Differential (-) Cool Stage Off Differential (-) Cool Stage Off Differential (-) Cool Stage Off Differential (-) Cool Stage Off Differential (-) Cool Stage 0 Off Differential (-) Cool Stage Off Differential (-) Cool Stage Off Differential (-) Heat Add Setpoints: Heat Stage On (0-) Heat Stage On (0-) Heat Stage On (0-) Heat Stage On (0-) Heat Stage On (0-) Heat Stage On (0-) Heat Stage On (0-) Metasys Integrator Metasys Integrator McQuay Application

33 NPT (Cont.) NPA Unit Description 0 0 Code Code Code Heat Stage On (0-) Heat Stage On (0-) Heat Stage 0 On (0-) Heat Stage On (0-) Heat Stage On (0-) Heat Stage Off Differential (-) Heat Stage Off Differential (-) Heat Stage Off Differential (-) Heat Stage Off Differential (-) Heat Stage Off Differential (-) Heat Stage Off Differential (-) Heat Stage Off Differential (-) Heat Stage Off Differential (-) Heat Stage Off Differential (-) Heat Stage 0 Off Differential (-) Heat Stage Off Differential (-) Heat Stage Off Differential (-) Clear Fault 0-n/a, -clear Loop Request 0-off, -on System Mode 0-off, -auto OAT Reset Enable 0-no, -yes Operating Mode (0...) Current Fault Previous Fault Loop Pump Runtime Loop Pump Runtime Tower Pump Runtime Tower Pump Runtime Boiler Pump Runtime Boiler Pump Runtime Network Point Type Network Point Address A list of codes (in ASCII format) is located on The Advisor. The codes may be displayed or printed as needed. Do not map these points to Companion points. If you map these points to Metasys objects, make sure the Auto Restore option in the object Definition and Focus window is disabled. Metasys Integrator Metasys Integrator McQuay Application

34 Lead/Lag Load Balance Controller Points To get the hardware reference for mapping points to CS object attributes (via the software model), combine the NPT (Network Point Type) and NPA (Network Point Address). For example, the hardware reference for the Delay Time Control point is. If the chillers are connected to an LLLB controller, do not command the chillers on and off with the Metasys or Companion binary outputs, since the LLLB will be controlling the chillers. If the chillers are controlled by an LLLB, monitor the binary points only. Table : Lead/Lag Load Balance Controller Points NPT NPA Unit Description RLA RLA Min RLA Network Point Type Network Point Address Enable Lag RLA Disable Lag RLA Delay Time Control Chiller Comm Status 0-error, -ok Chiller Comm Status 0-error, -ok Chiller Load Status 0-lag, -lead Chiller Load Status 0-lag, -lead System 0=no open protocol (normal operation) Mode =off, compressor and disabled =on, auto lead/lag =on, compressor lead, compressor lag =on, compressor lead, compressor lag =on, compressor enable, compressor disable =on, compressor enable, compressor disable System Chill Water Reset (0-00) System Demand Reset (0-00) Metasys Integrator Metasys Integrator McQuay Application

35 Self-Contained Air Conditioning Unit Points Note: The Metasys Integrator unit writes a decimal value of 0 to the Network Signal location in the Self-Contained Air Conditioning Unit in order to prevent the air conditioning unit from reverting to local control and using default setpoints. To get the hardware reference for mapping points to CS object attributes (via the software model), combine the NPT (Network Point Type) and NPA (Network Point Address). For example, the hardware reference for the Air Velocity point is. Table : Self-Contained Air Conditioning Unit Points NPT NPA Unit Description 0 0 FPM IWC IWC Amperes IWC Network Point Type Network Point Address Continued on next page... Supply Air Temperature Mixed Air Temperature Entering Water Temperature Leaving Water Temperature Return Air Temperature Outdoor Air Temperature Space Temperature Control Temperature Economizer Position Variable Inlet Vane Position Air Velocity Duct Static Pressure Duct Static Pressure Motor Amperes (0-MaxRLA) Building Static Pressure Water Flow Required 0-no, -yes Economizer Enabled 0-no, -yes Water Flow 0-no, -yes Air Flow 0-no, -yes Outdoor Air Damper 0-closed, -open Water Pump Status 0-off, -on Fan Operation 0-off, -on Network Communications OK 0-no, -yes Time Mode Status 0-Uno, -Occ Motor Speed 0-low, -high Metasys Integrator Metasys Integrator McQuay Application

36 NPT (Cont.) NPA Unit Description Code Code IWC IWC IWC Control Mode (0-) Control Temperature (ReturnTemp, SpaceTemp, Network, Outdr, Mixed) Heating Space Setpoint (0-) Heating Space Deadband (-0) Cooling Space Setpoint (-) Cooling Space Deadband (-0) Night Setback Space Setpoint (0-) Night Setback Space Differential (-0) Night Setup Space Setpoint (-) Night Setup Space Differential (-0) Cooling Supply Setpoint (0-00) Cooling Supply Deadband (0-0) Heating Supply Setpoint (0-0) Heating Supply Deadband (0-0) Duct Static Pressure Setpoint (0-) Duct Static Pressure Deadband (0-) Economizer Changeover Temperature (0-00) Economizer Changeover Differential (-0) Minimum Economizer Position (0-00) Entering Water Temperature Differential Setpoint (0-0) High Supply Temperature Limit (0-0) Low Entering Water Temp Lockout Compressors (0-00) Low Entering Water Differential (-0) Fan On Heating Setpoint (0-0) Network Control Temperature (0-00) Network Supply Vane Position (0-00) Building Static Pressure Setpoint (-0.0 [+0.0]) Head Pressure Deadband (0-0) Head Pressure Setpoint (0-) Humidity Control Type (0-None, -Relative Humidity, -Dewpoint) Humidity Setpoint (0-) Humidity Deadband (0-0) Dewpoint Setpoint (0-) Dewpoint Deadband (0-0) Minimum Vane Pos. for Building Static Press. Ctrl (0-00) Network Point Type Network Point Address A list of codes (in ASCII format) is located on The Advisor. The codes may be displayed or printed as needed. Continued on next page... Metasys Integrator Metasys Integrator McQuay Application

37 NPT (Cont.) NPA Unit Description 0 0 Code Code Code Code Code Code Code Code Code Code Code Code Clear Alarm 0-n/a, -clear Network Water Flow 0-no, -yes Minimum Supply Air Temp Control 0-no, -yes Humidity Method 0-OAT, -Enth Humidity Control Enabled 0-always, -running Humidity Sensor Type Enabled 0-return, -space Unit Status Cooling Control Status Heating Control Status Supply Fan Status (off, low, high) Heat Stage (0 if not Heating) Cool Stage (0 if not Cooling) Current Fault Previous Fault Compressor Alarm (Ok, HiPres, LoPres, Frost, Motor, VlvFail) Compressor Alarm (Ok, HiPres, LoPres, Frost, Motor, VlvFail) Compressor Alarm (Ok, HiPres, LoPres, Frost, Motor, VlvFail) Compressor Alarm (Ok, HiPres, LoPres, Frost, Motor, VlvFail) Compressor Alarm (Ok, HiPres, LoPres, Frost, Motor, VlvFail) Compressor Alarm (Ok, HiPres, LoPres, Frost, Motor, VlvFail) Fan Low Speed Operating s Fan High Speed Operating s Compressor Operating s Compressor Operating s Compressor Operating s Compressor Operating s Compressor Operating s Compressor Operating s Heating Operating s Economizer Operating s Override s Network Point Type Network Point Address A list of codes (in ASCII format) is located on The Advisor. The codes may be displayed or printed as needed. Do not map these points to Companion points. If you map these points to Metasys objects, make sure the Auto Restore option in the object Definition and Focus window is disabled. Metasys Integrator Metasys Integrator McQuay Application

38 Absorption Chiller Points To get the hardware reference for mapping points to CS object attributes (via the software model), combine the NPT (Network Point Type) and NPA (Network Point Address). For example, the hardware reference for the Rank Up Setting point is 0. Table : Absorption Chiller Points NPT NPA Unit Description HSUN* Chilled Water Inlet Temperature Chilled Water Outlet Temperature Condensed Refrigerant Temperature Cooling Water Inlet Temperature Cooling Water Outlet Temperature Exhaust Gas (Steam Condensate) Temperature Fuel Control Valve x x x Fuel Control Valve x High Temperature Generator Temperature 0 Hot Water Inlet Temperature (while heating) x Hot Water Inlet Temperature x x Hot Water Outlet Temperature (while heating) x Hot Water Outlet Temperature x x Hz Inverter Output Signal Low Temperature Generator Temperature ma Remote Reset Current Signal Steam Control Valve Output Signal x Chilled Water Setpoint Hot Water Setpoint x x x 0 Rank Up Setting Communications Error 0-OK, -error Network Point Type Network Point Address * Unit model types are as follows: H=DCH, S=DCS, U=DCU, N=NCU. Continued on next page... Metasys Integrator Metasys Integrator McQuay Application