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Daikin MicroTech II, Installation And Maintenance Manual

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Daikin MicroTech II Installation And Maintenance Manual Download Page 97

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www.DaikinApplied.com 

97 

ED 15062-7 • MICROTECH II CHILLER CONTROLLER

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Keypad Menu Path:

No Keypad Equivalent

This network input variable clears all active alarms. It cannot clear all alarms in the Fault category 

(alarms that shut down the chiller). They would have to be cleared at the chiller panel. The alarms that 

cannot be cleared over the network, but can be cleared at the chiller, are:

•  Low Evaporator Pressure
•  High Condenser Pressure (by pressure sensor)
•  High Condenser Pressure (by pressure switch)
•  Low Oil Pressure
•  Freeze Protection
•  High Motor Temperature

NOTE: 

The above list pertains only to Centrifugal chillers. 

Flow Loss is the only alarm that can be cleared 

remotely on all other chillers.

In addition to the Current Alarm network variable, 

nvoChillerStat indicates whether or not the chiller is in an alarm 

condition, but it does not describe the alarm condition.

Measurement

Units

Data Type

Valid Range

Default Value

N.A.

N.A.

Structure

See Below

NA

Variable Details

LONWORKS Name

Profile

SNVT Type

SNVT Index

SNVT Size

nviClearAlarm

Proprietary

switch 

95

two bytes 

Structure

typedef struct { 

  unsigned   value; 

 signed 

state; 

} SNVT_switch;

Valid Range

Value Field 

unused 

 

State Field 

0 

No Alarm 

 

1 

Clear Alarm

Summary of Contents for MicroTech II

Page 1: ...al Compressor WPV Water Cooled Centrifugal Single Compressor HSC Water Cooled Single Compressor Centrifugal Heat Recovery HDC Water Cooled Dual Compressor Centrifugal Heat Recovery TSC Water Cooled Single Compressor Centrifugal Templifier WMC Water Cooled Centrifugal Magnetic Bearing WCC Water Cooled Centrifugal Dual Compressor Series Counterflow AGZ Air Cooled Global Scroll ACZ Air Cooled Scroll ...

Page 2: ...Objects 15 Chiller Variables 15 Chiller Alarm Objects 18 LONWORKS Variables 19 Network Output Variables 19 Network Input Variables 20 Network Configuration Parameters 20 Detailed Data Point Information 21 Active Setpoint 23 Actual Capacity 23 Actual RPM 24 Capacity Limit 24 Capacity Limit Output 25 Capacity Limit Setpoint 25 Chiller Enable 26 Chiller Enable 27 Chiller Limited 28 Chiller Local Remo...

Page 3: ...ressure 66 Evaporator Saturated Refrigerant Temperature 67 Evaporator Water Flow Rate 68 Evaporator Water Pump Status 69 Heat Recovery Entering Water Temperature 70 Heat Recovery Leaving Water Temperature 70 Heat Setpoint 71 Heat Setpoint 71 Ice Setpoint 72 IGV Percentage Open 73 Inverter Temperature 73 Liquid Line Refrigerant Pressure 74 Liquid Line Refrigerant Temperature 75 Maximum RPM 76 Maxim...

Page 4: ...ce Statement PICS 102 BACnet Protocol Implementation Conformance Statement 102 Product Description 102 BACnet Standardized Device Profile 102 BACnet Interoperability Building Blocks BIBBs Supported 102 Standard Object Types Supported 102 Data Link Layer Options 103 Segmentation Capability 103 Device Address Binding 103 Networking Options 103 Character Sets Supported 103 Non BACnet Equipment Networ...

Page 5: ...n module PN 350147406 which has been replaced with a new hardware firmware platform PN 350147407 Added references to TGZ chiller Added 76800 baud rate Added information in the Configuring the Unit Controller section regarding the BACnet Configuration Tool which is required for setting certain parameters with the new BACnet communication module ED 15062 5 April 20 2009 Removed Table 1 Receive Heart...

Page 6: ... Installation Operation and Maintenance Manual www DaikinApplied com Daikin Applied IOMM ACZ MicroTech II Air Cooled Condensing Unit Installation Operation and Maintenance Manual www DaikinApplied com Daikin Applied IOMM AGZ MicroTech II Air Cooled Scroll Chiller Installation Operation and Maintenance Manual www DaikinApplied com Daikin Applied IOMM WGZ MicroTech II Water Cooled Scroll Chiller Ins...

Page 7: ...ay the Operator Interface Touch Screen a BACnet MS TP network or a LONWORKS network Not all points are accessible from each interface This manual lists all important data points and the corresponding path for each network interface Refer to the applicable Operation Manual for keypad display and Operator Interface Touch Screen detail see Reference Documents section for literature part numbers Proto...

Page 8: ...sign a number above 127 as long as they conform to the requirements of the ASHRAE BACnet specification Each object in a chiller controller has a unique identifier BACnet object identifiers are two part numbers of BACnet Object Identifier data type The first part identifies the object type the first 10 bits of the 32 bit BACnet Object Identifier See ANSI ASHRAE 135 2004 BACnet A Data Communication ...

Page 9: ...hange the device instance in the HTTP Interface you also change the device name and thus the full reference for all objects in the unit controller The Device Object name is also available to the network in the device The property name is Object_Name and property identifier is 77 Network Considerations Access to Properties To access a property you must specify the object identifier including the de...

Page 10: ...ith the input network variables Each data point accessible from a LONWORKS network is described with a table that gives the LONWORKS Name Profile SNVT Type and SNVT Index If the variable is a configuration variable the table also includes the SCPT Standard Configuration Parameter Type Reference and the SCPT Index Example of LONWORKS Data Point LONWORKS Name Profile SNVT Type SNVT Index SNVT Size n...

Page 11: ...t is any part of the free topology network in which each conductor is electrically continuous Each of the four diagrams in is a illustration of a network segment Some applications may require two or more segments See Free Topology Restrictions If necessary segments can be joined with FTT 10A to FTT 10A physical layer repeaters See Figure 2 Refer to Echelon LONWORKS FTT 10A Transceiver User s Guide...

Page 12: ...ed at the time of network configuration All device addresses have three parts The first part is the Domain ID designating the domain Devices must be in the same domain in order to communicate with each other The second part is the Subnet ID that specifies a collection of up to 127 devices that are on a single channel or a set of channels connected by repeaters There may be up to 255 subnets in a d...

Page 13: ...t to zero 0 and nciRcvHrtbt set to zero 0 Nvi variable values are cleared on a loss of power on restoration of power the controller will use the values of the following nci variables nciCapacityLim nciChillerEnable nciCoolSetpt nciHeatSetpt and nciMode Nvi variable values remain and continue to be used on a loss of communications 2 With nciDefaults set to zero 0 and nciRcvHrtbt greater than zero 0...

Page 14: ...word 2001 2001 2001 2001 8945 8453 8745 2001 2001 NOTE Models AGZ A B ACZ A B WGZ and TGZ have one unit controller while models AGS B C and WGS have one unit controller and multiple circuit controllers Unit settings for AGS B C and WGS models are adjusted on the unit controller Display Important Data Points Typical workstation displays of MicroTech II Unit Controller attributes include the followi...

Page 15: ...ce 2 Cool 3 Heat Default Cool Chiller Power 32 R AI 67 Totalized compressor kilowatts Chiller Status BACnet 1 33 R MSI 43 1 OFF 2 Start 3 Run 4 Pre Shutdown 5 Service Chiller Type 34 R MSI 48 1 AGZS 2 AGZD 3 WGZD TGZD 4 WSC WDC 5 AGSU 6 ACZS 7 ACZD 8 WMC 9 WGSD 10 AGSD 11 AGZS 12 AGZDU 13 WGZU 14 ACZSU 15 ACZDU Compressor 2 Active Capacity Limit 35 R AI 88 Compressor 2 VFD Speed 35 R AI 80 Compres...

Page 16: ...106 AI 114 AI 120 Condenser Entering Water Temperature 7 50 R AI 3 40 244 F Condenser Flow Switch Status 51 R BI 35 0 No Flow 1 Flow Condenser Leaving Water Temperature 8 52 R AI 4 40 244 F Condenser Pump Run Hours Pump Select Pump 2 53 R Hours reported at 1 10th the actual hours AI 28 0 65 535 AI 90 0 65 535 Condenser Refrigerant Pressure Compressor Select Compressor 2 54 R AI 16 3276 8 3276 7 AI...

Page 17: ...4 F Heat Setpoint 71 W AO 31 50 150 F Default 95 F Ice Setpoint 72 W AO 30 15 35 F Default 25 F IGV Percentage Open Compressor 1 Compressor 2 73 R 0 110 AI 58 AI 62 Inverter Temperature Compressor 1 Compressor 2 73 R AI 66 AI 87 Liquid Line Refrigerant Pressure 74 R AI 12 22592 22591 psi Liquid Line Refrigerant Temperature Compressor Select Compressor 2 75 R AI 11 40 244 F AI 85 40 244 F Maximum R...

Page 18: ...ller Alarm Objects Network Control Property Keypad attributes available as BACnet Standard Objects for network control of the unit Page R Read W Write Object Type Object Instance Description Warning Alarms Analog Input Object 11 88 R AI 902 Alarm Index Problem Alarms Analog Input Object 11 88 R AI 900 Alarm Index Fault Alarms Analog Input Object 11 88 R AI 901 Alarm Index Warning Alarms Multi stat...

Page 19: ...Condenser Leaving Water Temperature 8 nvoLvgCndWTemp 52 105 40 118 C Condenser Pump Run Hours nvoCondPumpHrs 53 8 0 65 535 Hours reported at 1 10th the actual hours Condenser Refrigerant Pressure nvoCondRefPress 54 30 3276 8 3276 7 Condenser Saturated Refrigerant Temperature nvoSatCndRefTemp 55 105 40 118 C Condenser Water Flow Rate NvoCondFlowRate 56 15 0 65 534 GPM Condenser Water Pump Status nv...

Page 20: ...uration Parameters Network Control Property Keypad attributes available as LONWORKS Variables for network control of the unit Variable Name Page SCPT_Reference SCPT Index Description Default Value Capacity Limit LONWORKS Configuration nciCapacityLim 24 SCPT_limitChlrCap 81 0 to 160 100 Chiller Enable LONWORKS Configuration nciChillerEnable 27 SCPT_pwrUpState 73 0 Request Chiller OFF 1 Request Chil...

Page 21: ...imit Output X X X X X X Capacity Limit Setpoint X X X X X X Cavity Temperature X Chiller Enable X X X X X X Chiller Enable LONWORKS Configuration X X X X X X Chiller Limited X X X X X X Chiller Local Remote X X X X X X Chiller Location X X X X X X Chiller Mode LONWORKS Configuration X X X X X Chiller Mode Output X X X X X Chiller Mode Setpoint X X X X X Chiller ON OFF X X X X X X Chiller Status BA...

Page 22: ... Entering Water Temperature X Heat Recovery Leaving Water Temperature X Heat Setpoint X Heat Setpoint LONWORKS Configuration X Ice Setpoint X X X X X IGV Percentage Open X Inverter Temperature X Liquid Line Refrigerant Pressure X Liquid Line Refrigerant Temperature X X X Maximum RPM X Maximum Send Time X X X X X X Minimum RPM X Minimum Send Time X X X X X X Network Clear Alarm X X X X X Oil Feed P...

Page 23: ...Name ActiveLvgWaterTarget LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoActiveSetpt Chiller temp_p 105 two bytes Actual Capacity Keypad Menu Path No Keypad Equivalent This output network variable indicates the percent of capacity the chiller is currently producing It may be more or less than the nominal capacity of the chiller For Centrifugal chiller models this...

Page 24: ...apacity Limit is a measure of the ratio of operating capacity to full capacity expressed in percent This LONWORKS variable sets a default value for the capacity limit of the chiller unless the configuration property nciDefaults 1 See Default Values on page 59 If nciDefaults 1 the default values are the values specified during manufacturing The capacity limit value is not the nominal capacity limit...

Page 25: ...n percent This level may be adjusted via an operator workstation or other network device but cannot be adjusted above a factory specified limit The input network variable sets the operating value input Refer to the appropriate Operation Manual for suitable variable values A3 Measurement Units Data Type Valid Range Default Value Percent of maximum capacity NA BACnet Real LONWORKS Fixed Point Scalar...

Page 26: ...stops the chiller from running When this property is read it indicates the current operating state of the chiller Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Binary Value 5 41 Present Value 85 Object Name ChillerEnable Property Values 0 Disable Inactive 1 Enable Active Default Value Relinquish_Default 0 Request Chi...

Page 27: ...alues Measurement Units Data Type Valid Range Default Value Chiller State NA LONWORKS structure Enumerated See Below LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size SCPT_Reference SCPT_ Index nciChillerEnable Chiller switch 95 two bytes SCPTpwrUpState 73 Default Value 0 Request Chiller Off The chiller object uses the configuration value of nciChillerEnable on power u...

Page 28: ...part of the Chiller Status network variable output see page 33 Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoChillerStat Chiller chlr_status 127 3 bytes Chiller Local Remote Keypad Menu Path No Keypad Equivalent The Local Remote network variable indicates whether the chiller is in local control or allowed to be controlled remotely over the network D5 Measurement Units Da...

Page 29: ...r Mode Keypad Menu Path No Keypad Equivalent This LONWORKS configuration network parameter establishes the default operating mode of the chiller unless the configuration parameter nciDefaults 1 See Default Values on page 59 If nciDefaults 1 the default values are the values specified during manufacturing Heat Mode Cool Mode default Ice Mode Measurement Units Data Type Valid Range Default Value HVA...

Page 30: ...er LONWORKS Fixed Point Scalar unsigned long See Below NA BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Multi state Input 13 44 Present Value 85 Object Name ActiveMode Property Values 1 ICE 2 COOL 3 HEAT LONWORKS The LONWORKS equivalent of this data point is part of the Chiller Status network output variable s...

Page 31: ...d provides the ability for another node on the network to place a chiller in another mode Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Multi state Output 14 45 Present Value 85 Object Name ChillerOperationMode Property Values 1 ICE 2 COOL 3 HEAT Default Value Relinquish_Default 2 LONWORKS Input nvi This input networ...

Page 32: ...WORKS structure See Below NA LONWORKS The LONWORKS equivalent of this data point is part of the Chiller Status network variable output see page 33 Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoOnOff Chiller switch 06 two bytes Chiller Power Keypad Menu Path No Keypad Equivalent This variable indicates the totalized compressor kilowatts I116 Measurement Units Data Type Va...

Page 33: ...status The first type is general The variable name is nvoOnOff see Chiller ON OFF on page 32 and indicates whether the chiller is on or off the network The second type is Chiller Status which includes the Run Mode The Run Mode is defined as OFF Start Run Pre shutdown and Service This output network variable indicates the main running mode and states of the chiller The Run Mode provides the primary...

Page 34: ...on and can t be run via a remote request Local 1 Chiller has been placed in a locally controlled mode of operation and cannot respond to remote requests 0 Chiller is not in local mode and network visible values maybe changed or monitored remotely Limited 1 Chiller conditions may exist that prevents the Chiller from reaching setpoint 0 Chiller is not restricted from attempting to reach setpoint CHW...

Page 35: ...ct Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 88 Present Value 85 Object Name Comp2ActiveCapLimit LONWORKS No LONWORKS Equivalent Compressor 2 VFD Speed Keypad Menu Path No Keypad Equivalent Measurement Units Data Type Valid Range Default Value Percent BACnet Percent BACnet Real BACnet 0 100 NA BACnet Compressor 2 This variable indicates the VFD speed for comp...

Page 36: ...A95 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 76 Present Value 85 Object Name Comp2Current Compressor 3 This variable indicates the current compressor amperes of compressor 3 A109 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 95 Present...

Page 37: ...Scalar signed long BACnet 460 621 F LONWORKS 273 17 327 66 C NA BACnet Compressor Select This output network variable indicates the current compressor refrigerant temperature of the compressor selected with Compressor Select on page 43 A19 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 18 Present Value 85 Object Name Di...

Page 38: ...A94 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 75 Present Value 85 Object Name Comp2CurrentPercent Compressor 3 This variable indicates the current motor current for compressor 3 A108 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 94 Pres...

Page 39: ...bject Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 116 Present Value 85 Object Name Comp6CurrentPercent LONWORKS Variable Details This output network variable indicates the current motor current for the compressor motor of the compressor selected with Compressor Select on page 43 A25 LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoCompPercRLA Proprietary...

Page 40: ...ce Property Name Property Enumeration Analog Input 0 77 Present Value 85 Object Name Comp2Kilowatts Compressor 3 This variable indicates the current power for the compressor motor of compressor 3 It is available via BACnet only A108 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 96 Present Value 85 Object Name Comp3Kilo...

Page 41: ... Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 118 Present Value 85 Object Name Comp6Kilowatts LONWORKS Variable Details This output network variable indicates the current power for the compressor motor of the compressor selected with Compressor Select on page 43 A27 LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoKil...

Page 42: ...Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 93 Present Value 85 Object Name Comp2Hours Compressor 3 This variable indicates the number of hours x10 for compressor 3 Not available on all chiller models I110 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration A...

Page 43: ... Voltage 46 Oil Sump Pressure 69 Condenser Refrigerant Pressure 50 Oil Sump Temperature 69 Condenser Saturated Refrigerant Temperature 51 Measurement Units Data Type Valid Range Default Value Event Count NA BACnet Unsigned Integer LONWORKS Fixed Point Scalar unsigned long 1 6 Comp No 1 BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name...

Page 44: ...r Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 92 Present Value 85 Object Name Comp2Starts Compressor 3 This variable indicates the number of times the compressor 3 motor has started I109 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 100 Present Value 85 Ob...

Page 45: ... Property Enumeration Analog Input 0 123 Present Value 85 Object Name CompressorStatus 0 Off 1 Start Oil Pump 2 Interlock Prelube 3 Run 4 Shutdown Compressor 2 This output network variable indicates the compressor status of the compressor 2 I105 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 91 Present Value 85 Object N...

Page 46: ...ork variable indicates the compressor status of the compressor 5 I114 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 115 Present Value 85 Object Name Comp5Status 0 Off 1 Start Oil Pump 2 Interlock Prelube 3 Run 4 Shutdown Compressor 6 This output network variable indicates the compressor status of the compressor 6 I115 ...

Page 47: ...ier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 15 Present Value 85 Object Name SuctionTemp Compressor 2 This variable indicates the current suction line refrigerant temperature for compressor 2 Not available on all chiller models A88 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property En...

Page 48: ...y Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 79 Present Value 85 Object Name Comp2Voltage Compressor 3 This variable indicates the current compressor voltage for compressor 3 It is available via BACnet only A112 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 98 Pre...

Page 49: ...fier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 120 Present Value 85 Object Name Comp6Voltage LONWORKS Variable Details This output network variable indicates the current compressor voltage There is a separate output for each compressor See Compressor Select on page 43 A29 LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoVolta...

Page 50: ...t Units Data Type Valid Range Default Value Temperature BACnet F LONWORKS C BACnet Real LONWORKS Fixed Point Scalar signed long BACnet 40 244 F LONWORKS 40 118 C NA BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 3 Present Value 85 Object Name EntCondWaterTemp LONWORKS Variable Details LONWORKS Na...

Page 51: ...umerated LONWORKS Structure See Below NA BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Binary Input 3 35 Present Value 85 Object Name CondWaterFlowStatus Property Values 0 No Flow Inactive 1 Flow Active LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoCndWFlow Proprietary switc...

Page 52: ... Units Data Type Valid Range Default Value Temperature BACnet F LONWORKS C BACnet Real LONWORKS Fixed Point Scalar signed long BACnet 40 244 F LONWORKS 40 118 C NA BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 4 Present Value 85 Object Name LvgCondWaterTemp LONWORKS Variable Details LONWORKS Nam...

Page 53: ...Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 28 Present Value 85 Object Name CondPumpOperHours Pump 2 This output network variable indicates the number of hours x10 that the selected condenser pump 2 has been turned on Not available on all chiller models I104 Object Identifier Property Identifier Object Type Type Enumeration Instance Property N...

Page 54: ... condenser There is a separate output for each compressor See Compressor Select on page 43 A21 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 16 Present Value 85 Object Name CondPressure Compressor 2 This variable indicates the current refrigerant pressure for compressor 2 Not available on all chiller models A93 Object ...

Page 55: ...ct Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 17 Present Value 85 Object Name CondSatTemp Compressor 2 This variable indicates the current saturated refrigerant temperature in the condenser for compressor 2 Not available on all chiller models A92 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Anal...

Page 56: ...alid Range Default Value Flow Volume BACnet GPM LONWORKS L S BACnet Real LONWORKS Fixed Point Scalar unsigned long BACnet 0 65 534 LONWORKS 0 65 534 NA BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 50 Present Value 85 Object Name CondWaterFlowRate LONWORKS Variable Details LONWORKS Name Profile ...

Page 57: ...BACnet Enumerated LONWORKS Structure See Below NA BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Binary Input 3 37 Present Value 85 Object Name CondPumpState Property Values 0 Off Inactive 1 On Active LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoCndWPump Proprietary Switch 9...

Page 58: ...aving Chilled Water when the chiller is operating in the Cooling Mode The Cooling mode is the normal mode of chiller operation unless overridden by using the optional Mode variable to change to another mode Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size SCPT_Reference SCPT Index nviCoolSetpt Chiller temp_p 105 two bytes NA NA Cool Setpoint Keypad Menu Path No Keypad Equivale...

Page 59: ...the following configuration network variables D10 Chiller Enable Capacity Limit Cool Setpoint Heat Setpoint Mode Measurement Units Data Type Valid Range Default Value Chiller State NA LONWORKS structure Enumerated 0 Use Default Values LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size SCPT_Reference SCPT Index nciDefaults Chiller switch 95 two bytes SCPT_ DefaultBehavio...

Page 60: ...o LONWORKS equivalent Device Object CAUTION If another device in the network has the same object identifier instance number you must change the instance number of one device object so that all devices in the network have a unique device instance Keypad Menu Path No Keypad Equivalent Each BACnet compatible device must have only one BACnet Device Object The device object contains all required proper...

Page 61: ...t Units Data Type Valid Range Default Value Temperature BACnet F LONWORKS C BACnet Real LONWORKS Fixed Point Scalar signed long BACnet 40 245 F LONWORKS 40 118 C NA BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 1 Present Value 85 Object Name EntEvapWaterTemp LONWORKS Variable Details LONWORKS Na...

Page 62: ...merated LONWORKS Structure See Below NA BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Binary Input 3 34 Present Value 85 Object Name EvapWaterFlowStatus Property Values 0 No Flow Inactive 1 Flow Active LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoChWFlow Proprietary switch ...

Page 63: ...ter A6 Measurement Units Data Type Valid Range Default Value Temperature BACnet F LONWORKS C BACnet Real LONWORKS Fixed Point Scalar signed long BACnet 40 244 F LONWORKS 40 118 C NA BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 2 Present Value 85 Object Name LvgEvapWaterTempUnit LONWORKS Variabl...

Page 64: ... temperature of the compressor selected with Compressor Select on page 43 Centrifugals only A14 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 23 Present Value 85 Object Name LvgEvapWaterTempComp Compressor 2 This variable indicates the current temperature of the Evaporator leaving chilled water temperature of compresso...

Page 65: ...lect on page 85 I47 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 27 Present Value 85 Object Name EvapPumpOperHours Pump 2 This variable indicates the number of hours x10 for pump 2 Not available on all chiller models I105 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Propert...

Page 66: ...tifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 13 Present Value 85 Object Name EvapPressure Compressor 2 This variable indicates the current refrigerant pressure in the evaporator for compressor 2 Not available on all chiller models A90 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Prope...

Page 67: ...ntifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 14 Present Value 85 Object Name EvapSatTemp Compressor 2 This output network variable indicates the current saturated refrigerant temperature in the evaporator for compressor 2 A89 Not available on all chiller models Object Identifier Property Identifier Object Type Type Enumeration Instance Property Na...

Page 68: ...Valid Range Default Value Flow Volume BACnet GPM LONWORKS L S BACnet Real LONWORKS Fixed Point Scalar unsigned long BACnet 0 65 534 LONWORKS 0 65 534 NA BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 49 Present Value 85 Object Name EvapWaterFlowRate LONWORKS Variable Details LONWORKS Name Profile...

Page 69: ...umerated LONWORKS Structure See Below NA BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Binary Input 3 36 Present Value 85 Object Name EvapPumpState Property Values 0 Commanded Off Inactive 1 Commanded On Active LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoChWPump Proprietar...

Page 70: ... Name HeatRecEntWaterTemp LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoEntHRWTemp Proprietary temp_p 105 two bytes Heat Recovery Leaving Water Temperature Keypad Menu Path No Keypad Equivalent This output network variable indicates the current temperature of the water leaving the heat recovery section A23 Measurement Units Data Type Valid Range Default Value Te...

Page 71: ...network variable provides the heating setpoint when the chiller is operating in the heat mode The value is ignored if the controller is in cooling mode Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size SCPT_Reference SCPT Index nviHeatSetpt Chiller temp_p 105 two bytes NA NA Heat Setpoint Keypad Menu Path No Keypad Equivalent This configuration network parameter establishes the...

Page 72: ... and Model See below BACnet This commandable property sets the temperature of the Leaving Chilled Water This level may be adjusted via an operator workstation or other network device When this property is read it indicates the current value of the temperature of the Leaving Chilled Water Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Prop...

Page 73: ...pe Enumeration Instance Property Name Property Enumeration Analog Input 0 62 Present Value 85 Object Name Comp2IGVPercentOpen LONWORKS No LONWORKS equivalent Inverter Temperature Keypad Menu Path No Keypad Equivalent This output network variable the current drive temperature There is one variable for each compressor A86 A106 Measurement Units Data Type Valid Range Default Value Temperature BACnet ...

Page 74: ...on page 43 A38 Measurement Units Data Type Valid Range Default Value Pressure BACnet psi LONWORKS kPa BACnet Real LONWORKS Fixed Point Scalar signed long BACnet 22592 22591 psi LONWORKS 3 276 8 3 276 7 kPa NA BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 12 Present Value 85 Object Name LiquidLin...

Page 75: ...ier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 11 Present Value 85 Object Name LiquidLineTemp Compressor 2 This variable indicates the current liquid line refrigerant temperature for compressor 2 Not available on all chiller models A104 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property...

Page 76: ...ect Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 59 Present Value 85 Object Name Comp2MaxRPM LONWORKS No LONWORKS equivalent Maximum Send Time Keypad Menu Path No Keypad Equivalent This configuration network parameter controls the maximum period of time that expires before the following network variables are transmitted nvoC...

Page 77: ...t 0 57 Present Value 85 Object Name Comp1MinRPM Compressor 2 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 61 Present Value 85 Object Name Comp2MinRPM LONWORKS No LONWORKS equivalent Minimum Send Time Keypad Menu Path No Keypad Equivalent This configuration network parameter controls the minimum period of time that exp...

Page 78: ... Valid Range Default Value Temperature BACnet F BACnet Real BACnet 4 212 F NA BACnet Compressor 1 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 65 Present Value 85 Object Name Comp1MotorCavityTmp Compressor 2 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration ...

Page 79: ...ier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 19 Present Value 85 Object Name OilFeedPressure Compressor 2 This variable indicates the current oil feed pressure for compressor 2 Not available on all chiller models A100 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Anal...

Page 80: ...ier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 21 Present Value 85 Object Name OilFeedTemp Compressor 2 This output network variable indicates the current compressor oil feed temperature for compressor 2 Not available on all chiller models A102 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration...

Page 81: ... Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 20 Present Value 85 Object Name OilSumpPressure Compressor 2 This variable indicates the current compressor oil sump pressure for compressor 2 Not available on all chiller models A101 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumerat...

Page 82: ...ier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 22 Present Value 85 Object Name OilSumpTemp Compressor 2 This output network variable indicates the current compressor oil sump temperature for compressor 2 Not available on all chiller models A103 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration...

Page 83: ...Valid Range Default Value Temperature BACnet F LONWORKS C BACnet Real LONWORKS Fixed Point Scalar signed long BACnet 40 244 F LONWORKS 40 118 C NA BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 10 Present Value 85 Object Name OutdoorAirTemp LONWORKS Variable Details LONWORKS Name Profile SNVT Typ...

Page 84: ... 85 Object Name PowerFactor Compressor 2 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 78 Present Value 85 Object Name Comp2PowerFactor Compressor 3 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 97 Present Value 85 Object Name Comp3PowerFac...

Page 85: ... page 65 D19 Measurement Units Data Type Valid Range Default Value Event Count NA BACnet Unsigned Integer LONWORKS structure See Below BACnet 1 Pump No 1 LONWORKS 0 Pump No 1 BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Multi state Output 14 47 Present Value 85 Object Name PumpSelect Property Values 1 Pump 1 ...

Page 86: ...e Profile SNVT Type SNVT Index SNVT Size SCPT_Reference SCPT Index nciRcvHrtBt Proprietary time_sec 107 two bytes SCPT_maxRcvTime 49 Run Enabled Keypad Menu Path Menu This output network variable indicates that the chiller can start if operating conditions are met See Chiller Status on page 33 for details Measurement Units Data Type Valid Range Default Value Chiller Status NA BACnet Enumerated LON...

Page 87: ...rm message of this type A BAS integrator may not want to use this method to handle alarms If either case is true the BAS integrator can use the Poll Multiple or Poll Singular method Table 3 Event Notification Service Details Field Source Process Identifier Device Instance Process ID in the HTTP Interface Initiating Device Identifier Device Instance of the BACnet Communication Module as specified i...

Page 88: ...asurement Units Data Type Valid Range Default Value NA NA Integer Enumerated NA Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input 0 902 Present Value 85 Object Name AIWarningAlarm Problem Alarms Analog Input Object This BACnet object indicates the index number of problem alarms If the present values is zero no alarm has occu...

Page 89: ...tifier Object Type Type Enumeration Instance Property Name Property Enumeration Multi state Input 13 902 State Text 110 Object Name MSIWarningAlarm Problem Alarms Multi state Input Object This BACnet object indicates the index number of problem alarms in the present value property and the text of the alarm message in the state text property If the present value is zero no alarm has occurred See Ta...

Page 90: ... Units Data Type Valid Range Default Value NA NA Character String NA NA Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Multi state Input 13 901 State Text 110 Object Name MSIFaultAlarm Poll Singular Alarm Digital Output The Poll Singular method requires that one Binary Input object in the BACnet Communication Module be polled for alar...

Page 91: ...s The following table identifies each alarm class whether an acknowledgement is required the alarm text and indicates system parameters at the time of the alarm Table 4 BACnet Alarms Alarm Class Description Event Values WSC WDC WPV HSC HDC TSC WMC WCC AGZ ACZ WGZ TGZ AGS WGS 1 W NO ACTION Condenser Entering Water Temperature Sensor Failure 1 2 3 4 9 X 2 W NO ACTION Evaporator Entering Water Temper...

Page 92: ...ze Protection Comp 1 1 2 3 4 9 X 46 P EVAPORATOR PUMP ON Evaporator Water Freeze Protection Comp 2 1 2 3 4 9 X 49 P PUMP 2 START ATTEMPTED Evaporator Pump 1 Failure 1 2 3 4 9 X 50 P PUMP 1 START ATTEMPTED Evaporator Pump 2 Failure 1 2 3 4 9 X 52 F COMPRESSOR SHUTDOWN Outside Air Temperature Sensor Fault 1 2 3 4 9 10 X X X X X 53 F COMPRESSOR SHUTDOWN Current Overload Trip 1 1 2 3 4 9 10 X X X 54 F...

Page 93: ...Temperature High 3 1 2 9 10 X2 111 F COMPRESSOR SHUTDOWN Condenser Entering Water Temperature Sensor Fault 1 2 3 4 9 10 X X 112 F COMPRESSOR SHUTDOWN Evaporator Water Flow Loss 1 2 3 4 9 10 X X X X X X 113 F COMPRESSOR SHUTDOWN Evaporator Leaving Water Temperature Low Freeze 1 2 3 4 9 10 X X X X 114 F COMPRESSOR SHUTDOWN Evaporator Pressure Low 1 2 3 4 9 10 X6 X4 115 F COMPRESSOR SHUTDOWN Evaporat...

Page 94: ...Temperature Sensor Fault 1 1 2 3 4 9 X 168 F COMPRESSOR SHUTDOWN Oil Feed Temperature Sensor Fault 2 1 2 3 4 9 X 171 F COMPRESSOR SHUTDOWN Oil Level Low 1 1 2 9 10 X X 172 F COMPRESSOR SHUTDOWN Oil Level Low 2 1 2 9 10 X X 173 F COMPRESSOR SHUTDOWN Oil Level Low 3 1 2 9 10 X2 175 F COMPRESSOR SHUTDOWN Oil Filter Delta Pressure High 1 1 2 9 10 X X 176 F COMPRESSOR SHUTDOWN Oil Filter Delta Pressure...

Page 95: ...10 X X X 225 F C Stop General Comp Fault 1 1 2 3 4 9 10 X8 226 F C Stop General Comp Fault 2 1 2 3 4 9 10 X8 227 F C Stop Communication Fault 1 1 2 3 4 9 10 X8 228 F C Stop Communication Fault 2 1 2 3 4 9 10 X8 229 F C Stop Interlock Fault 1 1 2 3 4 9 10 X8 230 F C Stop Interlock Fault 2 1 2 3 4 9 10 X8 231 F C Stop Bearing Fault 1 1 2 3 4 9 10 X8 232 F C Stop Bearing Fault 2 1 2 3 4 9 10 X8 233 F...

Page 96: ...pad Menu Path Menu Alarm Active This network output variable indicates the current alarm The type of alarm is included in the text string Alarm messages are listed in Table 5 on page 98 The unit controller can accommodate 15 simultaneous alarms Alarm messages are sent sequentially one every five seconds Measurement Units Data Type Valid Range Default Value Alarm Message NA Structure 0 30 character...

Page 97: ...re by pressure switch Low Oil Pressure Freeze Protection High Motor Temperature NOTE The above list pertains only to Centrifugal chillers Flow Loss is the only alarm that can be cleared remotely on all other chillers In addition to the Current Alarm network variable nvoChillerStat indicates whether or not the chiller is in an alarm condition but it does not describe the alarm condition Measurement...

Page 98: ...nd Water Freeze 2 X 22 Condenser Pump 1 Fault PUMP 2 ON Cond Pump Fail 1 X 23 Condenser Pump 2 Fault PUMP 1 ON Cond Pump Fail 2 X 24 High Discharge Temperature Comp 1 LOAD Discharge Temp High 1 X 25 High Discharge Temperature Comp 2 LOAD Discharge Temp High 2 X 26 Entering Evap Temperature Sensor Fault EWT reset active NO RESET Evap EWT Sensor Fail X 27 Low Evaporator Pressure Inhibit Loading NO L...

Page 99: ...ress High X6 X4 78 High Condenser Pressure Circuit 1 COMP STOP Cond Press High 1 X X5 X3 X X X 79 High Condenser Pressure Circuit 2 COMP STOP Cond Press High 2 X X5 X3 X X X 80 High Condenser Pressure Circuit 3 COMP STOP Cond Press High 3 X2 82 No Compressor Stop Comp 1 STOP Current High w Comp Off 1 X 83 No Compressor Stop Comp 2 STOP Current High w Comp Off 2 X 84 Discharge Temperature Sensor Fa...

Page 100: ...OP MechHighPressTrip 1 X X5 X3 X X X 131 Mechanical High Pressure Circuit 2 COMP STOP MechHighPressTrip 2 X X5 X3 X X X 132 Mechanical High Pressure Circuit 3 COMP STOP MechHighPressTrip 3 X2 134 Low Oil Net Pressure Comp 1 COMP STOP Oil Net Press Low 1 X 135 Low Oil Net Pressure Comp 2 COMP STOP Oil Net Press Low 2 X 136 High Oil Feed Temperature Comp 1 COMP STOP Oil Feed Temp High 1 X 137 High O...

Page 101: ...uct SH Running Comp 1 COMP STOP Suct SH High Run 1 X 170 Surge High Suct SH Running Comp 2 COMP STOP Suct SH High Run 2 X 171 Surge High Suct SH Starting Comp 1 COMP STOP Suct SH High Start 1 X 172 Surge High Suct SH Starting Comp 2 COMP STOP Suct SH High Start 2 X 173 Suction Temperature Sensor Fault Circuit 1 COMP STOP SuctnTmpSensorFail 1 X X X 174 Suction Temperature Sensor Fault Circuit 2 COM...

Page 102: ...opertyMultiple B DS RPM B Data Sharing WriteProperty B DS WP B Data Sharing WritePropertyMultiple B DS WPM B Alarm and Event Notification Internal B AE N I B Alarm and Event ACK B AE ACK B Alarm and Event Information B AE INFO B Device Management Dynamic Device Binding B DM DDB B Device Management Dynamic Object Binding B DM DOB B Device Management DeviceCommunicationControl B DM DCC B Device Mana...

Page 103: ...e Address Binding Static Device Binding Yes No Networking Options Router Clause 6 Routing Configurations Annex H BACnet Tunneling Router over IP BACnet IP Broadcast Management Device BBMD Registrations by Foreign Devices Yes No Character Sets Supported ANSI X3 4 IBM Microsoft DBCS ISO 8859 1 ISO 10646 UCS 2 ISO 10646 UCS 4 JIS C 6226 NOTE Support for multiple character sets does not imply they can...

Page 104: ...uant to its standard terms and conditions of sale including Limited Product Warranty Consult your local Daikin Applied representative for warranty details To find your local Daikin Applied representative go to www DaikinApplied com Aftermarket Services To find your local parts office visit www DaikinApplied com or call 800 37PARTS 800 377 2787 To find your local service office visit www DaikinAppl...

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