Daikin MicroTech II Installation And Maintenance Manual
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Daikin MicroTech II Installation And Maintenance Manual

Daikin MicroTech II Installation And Maintenance Manual

Chiller unit controller
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See also: Operation & Maintenance Manual
Installation and Maintenance Manual
MicroTech
®
Protocol Information
LonWorks
Networks, BACnet
®
Unit Model Number
Description
WSC
Water-Cooled Centrifugal, Single-Compressor
WDC
Water-Cooled Centrifugal, Dual-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 Condensing Unit
WGZ
Water-Cooled Global Scroll
AGS
Air-Cooled Global Screw
WGS
Water-Cooled Global Screw
TGZ
Templifier
II Chiller Unit Controller
®
Water Heater
™
Networks (MS/TP)
ED 15062-7
Group: Controls
Part Number: ED 15062-7
Date: August 2015
Supersedes: ED 15062-6
™

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  • Page 1 Installation and Maintenance Manual ED 15062-7 Group: Controls Part Number: ED 15062-7 Date: August 2015 Supersedes: ED 15062-6 MicroTech II Chiller Unit Controller ® Protocol Information LonWorks Networks, BACnet Networks (MS/TP) ® ® Unit Model Number Description Water-Cooled Centrifugal, Single-Compressor Water-Cooled Centrifugal, Dual-Compressor Water-Cooled Centrifugal, Single-Compressor Water-Cooled Single-Compressor Centrifugal, Heat Recovery...

  • Page 2: Table Of Contents

    Chiller Location ......29 MicroTech II Chiller Unit Controller Device Object . . 9 Chiller Mode .
  • Page 3 Liquid Line Refrigerant Pressure ....74 Liquid Line Refrigerant Temperature ... 75 www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...
  • Page 4 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 5: Introduction

    Limited Warranty Software Revision Consult your local Daikin Applied Representative for warranty This edition documents the following versions of the details. To find your local Daikin Applied Representative, go to standard MicroTech II BACnet Communication Module ® ®...

  • Page 6: Reference Documents

    IOMM WSCWDC www.DaikinApplied.com and Maintenance Manual Daikin Applied OM AGS MicroTech II Air-Cooled Screw Chiller Operating Manual www.DaikinApplied.com MicroTech II Unit Controller for Centrifugal Chillers and Daikin Applied OM CentrifMicro II www.DaikinApplied.com Templifiers Operating Manual Daikin Applied OM WGS MicroTech II Water-Cooled Screw Chiller Operating Manual www.DaikinApplied.com...

  • Page 7: Chiller Models

    Water-Cooled Global Screw Templifier Water Heater Controller Data Points The MicroTech II Chiller Unit Controller contains data points or unit variables that are accessible from as many as four user interfaces: the unit keypad/display, the Operator Interface Touch Screen, a BACnet MS/TP network, or a LONWORKS network.

  • Page 8: Basic Protocol Information

    Each object in a chiller controller has a unique identifier. BACnet object identifiers are two-part numbers of BACnet The MicroTech II Chiller Unit Controller conforms to the Object Identifier data type. The first part identifies the object BACnet Standard (ANSI/ASHARE 135-2004) as stated in the type (the first 10 bits of the 32-bit BACnet Object Identifier Protocol Implementation and Conformance Statement (PICS).

  • Page 9: Microtech Ii Chiller Unit Controller Device Object

    It must be unique in the network. The device name keypad operating instructions and the BACnet Communication for the MicroTech II Chiller Unit Controller device is MTII Chiller Module Installation Manual (see Reference Documents section UC ####. The #### represents the device object instance for literature part numbers.) The Installation Manual specifies...

  • Page 10: Lonworks Networks

    This manual defines in the LONMARK Chiller functional profile or is a proprietary the variables and parameters available in the MicroTech II variable. The variable itself may not be a standard component Chiller Unit Controller.
  • Page 11 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 (see Reference Documents section for details.) www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...
  • Page 12 .XIF) is available so that any network tool can design Reference Documents section for details.) and configure it prior to installation. For a copy of the XIF file contact your local Daikin Applied representative. ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...
  • Page 13 Configuring the Unit Controller LONWORKS Data Integrity The MicroTech II Chiller Controller and the LONWORKS 1. With nciDefaults set to zero (0) and nciRcvHrtbt set to Communication Module are both designed, programmed, zero (0): and configured at the factory to be a chiller unit controller in —...

  • Page 14: Typical Application: Minimum Integration

    Set up the Unit for Network Control this section also identify these data points with a number and shading. Unit Setup for Centrifugal Chiller MicroTech II Network Control: 1. Disable the chiller. The chiller should not be operating Table 1: Significant Data Points while performing this setup.

  • Page 15: Comprehensive Data Point Tables

    Compressor #4 Compressor #5 Compressor #6 Compressor Run Hours Compressor Select Hours reported at 1/10th the actual hours. Compressor #2 Compressor #3 Compressor #4 *Boldface denotes data points for typical minimum integration. www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...
  • Page 16 Evaporator Flow Switch Status 0=No Flow, 1=Flow *Evaporator Leaving Water -40°–244°F Temperature for Unit (6) Evaporator Leaving Water Temperature for Compressor -40°–244°F Compressor Select Compressor #2 -40°–244° *Boldface denotes data points for typical minimum integration. ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...
  • Page 17 Oil Sump Pressure -22592–22591 psi Compressor Select Compressor #2 -22592–22591 psi Oil Sump Temperature -40°–244°F Compressor Select Compressor #2 -40°–244°F Outdoor Air Temperature -40°–244°F *Boldface denotes data points for typical minimum integration. www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 18: Chiller Alarm Objects

    Alarm Index and Alarm Text (30 characters max) Fault Alarms, Multi-state Input Object (11) Alarm Index and Alarm Text (30 characters max) Alarm Digital Output (11) 0-No Alarm, 1=Alarm BACnet Clear Alarm (12) 0= Normal, 1=Clear Alarm ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 19: Lonworks Variables

    Oil Sump Pressure nvoOilSumpPress -3276.8–3276.7 kPa Oil Sump Temperature nvoOilSumpTemp -40°–118° C Outdoor Air Temperature nvoOutdoorTemp -40°–118° C Run Enabled nvoChillerStat 0=OFF, 1=Run Allowed *Boldface denotes data points for typical minimum integration. www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 20: Network Input Variables

    SCPT_minSendTime 0–6553.4 sec 0 sec 1=HVAC_HEAT, 3=HVAC_COOL, *Chiller Mode (LONWORKS Configuration) (2) nciMode SCPT_HVACmode 11=HVAC_ICE Receive Heartbeat nciRcvHrtBt SCPT_maxRcvTime 0.0–6553.4 sec (0.1 sec) *Boldface denotes data points for typical minimum integration. ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 21: Detailed Data Point Information

    Cool Setpoint (LONWORKS Configuration) Current Alarm *Dual Circuit Only **Optional Solid State Starter Required. Voltage, Power and Current are per compressor ***Not available on the WMC ****AGS A and B vintage only *****WMC only www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...
  • Page 22 Warning Alarms, Multi-state Input Object *Dual Circuit Only **Optional Solid State Starter Required. Voltage, Power and Current are per compressor ***Not available on the WMC ****AGS A and B vintage only *****WMC only ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 23: Active Setpoint

    Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name ChillerCapacity LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoActCapacity Chiller lev_percent two bytes www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 24: Actual Rpm

    100% The chiller object uses the configuration value of nciCapacityLim on power-up or loss of communication unless the configuration parameter nciDefaults = (see Default Values on page 59). Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size SCPT_Reference SCPT Index nciCapacityLim Chiller two bytes SCPTlimitChlrCap (configuration) ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 25: Capacity Limit Output

    Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size SCPT_Reference SCPT Index nviCapacityLim Chiller lev_percent two bytes (input) www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 26: Chiller Enable

    SCPT_ Index nviChillerEnable Chiller Switch two bytes Structure typedef struct { unsigned value; signed state; } SNVT_switch; Valid Range Value Field unused State Field Request Chiller Off Request Chiller Auto (run) 0xff Invalid ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 27: Chiller Enable

    =1 (See Default Values on page 59). Structure typedef struct { unsigned value; signed state; } SNVT_switch; Valid Range Value Field unused State Field Request Chiller Off Request Chiller Auto (run) 0xff Invalid www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 28: Chiller Limited

    The LONWORKS equivalent of this data point is part of the Chiller Status network output variable (see page 33). Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size Data Type nvoChillerStat Chiller chlr_status 3 bytes Structure ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 29: Chiller Location

    The chiller object uses the configuration value of nciMode on power-up or loss of communication unless the configuration parameter nciDefaults =1 (See Default Values on page 59). Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size SCPT Reference SCPT Index nciMode Chiller hvac_mode one byte SCPT_HVACmode www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 30: Chiller Mode Output

    The LONWORKS equivalent of this data point is part of the Chiller Status network output variable (see page 33). Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoChillerStat Chiller chlr_status 3 bytes ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 31: Chiller Mode Setpoint

    Chiller hvac_mode one byte hvac_mode All enumerations are not used for this data point. Only the following enumerations are used. Value Identifier Notes HVAC_HEAT Heating only HVAC_COOL Cooling only HVAC_ICE Ice-making mode www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 32: Chiller On Off

    LONWORKS: Fixed-Point Scalar signed long BACnet Variable Details Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name TotalChillerKW LONWORKS No LONWORKS equivalent. ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 33: Chiller Status

    Chiller chlr_status 3 bytes Structure typedef struct { chiller_t chlr_run_mode; hvac_t chlr_op_mode; struct{ unsigned in_alarm unsigned run_enabled :1; unsigned local unsigned limited unsigned chw_flow unsigned condw_flow :1; } chlr_state; } SNVT_chlr_status; www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 34: Chiller Type

    7 = ACZD 12 = AGZDU 3 = WGZD 8 = WMC 13 = WGZU 4 = WSC/WDC 9 = WGSD 14 = ACZSU 5 = AGSU 10 = AGSD 15 = ACZDU ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 35: Compressor 2 Active Capacity Limit

    This variable indicates the VFD speed for compressor 2. (A99) Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name Comp2Speed LONWORKS No LONWORKS Equivalent. www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 36: Compressor Current

    Compressor #5 This variable indicates the current compressor amperes of compressor 5. (A119) Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name Comp5Current ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 37: Compressor Discharge Temperature

    This output network variable indicates the current compressor refrigerant temperature of the compressor selected with Compressor Select on page 43. (A19) LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoCompDisTemp Proprietary temp_p two bytes www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 38: Compressor Percent Rla

    Compressor #5 This variable indicates the current motor current for compressor 5. (A118) Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name Comp5CurrentPercent ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...
  • Page 39 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 lev_percent two bytes www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 40: Compressor Power

    This variable indicates the current power for the compressor motor of compressor 5. It is available via BACnet only.(A118) Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name Comp5Kilowatts ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...
  • Page 41 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 nvoKilowattts Proprietary power_kilo 2 bytes www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 42: Compressor Run Hours

    This output network variable indicates the number of hours (x10) that the compressor motor of the compressor selected with Compressor Select on page 43. (I46) Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoCompHrs Proprietary count two bytes ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 43: Compressor Select

    4 = Comp/Circuit No. 4 (Circuit No. 2 on Scroll Chillers and Condensing Units) 5 = Comp No. 5 (Circuit No. 1 on Scroll Chillers and Condensing Units) 6 = Comp No. 6 (Circuit No. 2 on Scroll Chillers and Condensing Units) www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 44: Compressor Starts

    This output network variable indicates the number of times the compressor motor of the compressor selected with Compressor Select on page 43. (I45) LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoCompStarts Proprietary count two bytes ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 45: Compressor Status

    This output network variable indicates the compressor status of the compressor 3. (I108) Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name Comp3Status 0=Off 1=Start Oil Pump 2=Interlock/Prelube 3=Run 4=Shutdown www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...
  • Page 46 This output network variable indicates the compressor status of the compressor 6. (I115) Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name Comp6Status 0=Off 1=Start Oil Pump 2=Interlock/Prelube 3=Run 4=Shutdown LONWORKS No LONWORKS equivalent. ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 47: Compressor Suction Line Temperature

    This output network variable indicates the current suction line refrigerant temperature. There is a separate output for each compressor. See Compressor Select on page 43. (A15) LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoSuctionTemp Proprietary temp_p two bytes www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 48: Compressor Voltage

    This variable indicates the current compressor voltage for compressor 5. It is available via BACnet only.(A122) Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name Comp5Voltage ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...
  • Page 49 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 nvoVoltage Proprietary Volt_ac two bytes www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 50: Condenser Entering Water Temperature

    Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name EntCondWaterTemp LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoEntCndWTemp Chiller temp_p two bytes ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 51: Condenser Flow Switch Status

    Profile SNVT Type SNVT Index SNVT Size nvoCndWFlow Proprietary switch two bytes Structure typedef struct { unsigned value; signed state; } SNVT_switch; Valid Range Value Field unused State Field No Flow Flow www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 52: Condenser Leaving Water Temperature

    Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name LvgCondWaterTemp LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoLvgCndWTemp Chiller temp_p two bytes ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 53: Condenser Pump Run Hours

    This output network variable indicates the number of hours (x10) that the selected condenser pump motor has been turned on. See Pump Select on page 85. (I48) LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoCondPumpHrs Proprietary count two bytes www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 54: Condenser Refrigerant Pressure

    Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name Comp2CondPress LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoCondRefPress Proprietary press two bytes ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 55: Condenser Saturated Refrigerant Temperature

    This output network variable indicates the current saturated refrigerant temperature in the condenser. There is a separate output for each compressor. See Compressor Select on page 43. (A20) LONWORKS Name Profile SNVT Type SNVT Index SNVT Size Data Type Fixed Point Scalar nvoSatCndRefTemp Proprietary temp_p two bytes signed long www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 56: Condenser Water Flow Rate

    Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name CondWaterFlowRate LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoCondFlowRate Proprietary flow two bytes ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 57: Condenser Water Pump Status

    SNVT Index SNVT Size nvoCndWPump Proprietary Switch two bytes Structure typedef struct { unsigned value; signed state; } SNVT_switch; Valid Range Value Field unused State Field Pump Commanded Off Pump Commanded On www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 58: Cool Setpoint

    59) 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 nciCoolSetpt Chiller temp_p two bytes SCPT_CoolSetpoint ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 59: Default Values

    SCPT Index SCPT_ nciDefaults Chiller switch two bytes DefaultBehavior Structure typedef struct { unsigned value; signed state; } SNVT_switch; Valid Range Value Field unused State Field Use Default Values Use Manufacturer-Specified Values www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 60: Design Rpm

    The initial instance of the MicroTech II Chiller device object is 3000. All critical properties of the device object can be changed in the HTTP Interface. The device object name is first part of the full reference to all objects in the BACnet Communication Module.

  • Page 61: Evaporator Entering Water Temperature

    Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name EntEvapWaterTemp LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoEntChwTemp Chiller temp_p two bytes www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 62: Evaporator Flow Switch Status

    Profile SNVT Type SNVT Index SNVT Size nvoChWFlow Proprietary switch two bytes Structure typedef struct { unsigned value; signed state; } SNVT_switch; Valid Range Value Field unused State Field No Flow Flow ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 63: Evaporator Leaving Water Temperature For Unit

    Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name LvgEvapWaterTempUnit LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoLvgCHWTemp Chiller temp_p two bytes www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 64: Evaporator Leaving Water Temperature For Compressor

    This variable indicates the current temperature of the Evaporator leaving chilled water temperature of compressor 2. Not available on all chiller models. (A87) Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name Comp2EvapLvgWTmp ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 65: Evaporator Pump Run Hours

    This output network variable indicates the number of hours (x10) that the selected evaporator pump has been turned on. See Pump Select on page 85. (I47) LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoEvapPumpHrs Proprietary count two bytes www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 66: Evaporator Refrigerant Pressure

    This output network variable indicates the current refrigerant pressure in the evaporator. There is a separate output for each compressor. See Compressor Select on page 43. (A17) LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoEvapRefPress Proprietary press two bytes ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 67: Evaporator Saturated Refrigerant Temperature

    This output network variable indicates the current saturated refrigerant temperature in the evaporator. There is a separate output for each compressor. See Compressor Select on page 43. (A16) LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoSatEvapRefTemp Proprietary temp_p two bytes www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 68: Evaporator Water Flow Rate

    Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name EvapWaterFlowRate LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoEvapFlowRate Proprietary flow two bytes ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 69: Evaporator Water Pump Status

    SNVT Index SNVT Size nvoChWPump Proprietary switch two bytes Structure typedef struct { unsigned value; signed state; } SNVT_switch; Valid Range Value Field unused State Field Pump Commanded Off Pump Commanded On www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 70: Heat Recovery Entering Water Temperature

    Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name HeatRecLvgWaterTemp LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoLvgHRWTemp Proprietary temp_p two bytes ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 71: Heat Setpoint

    The chiller object uses the configuration value of nciHeatSetpt on power-up or loss of communication unless the configuration parameter nciDefaults =1 (see Default Values on page 59). Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size SCPT_Reference SCPT Index nciHeatSetpt Chiller temp_p two bytes SCPT_HeatSetpoint www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 72: Ice Setpoint

    This input network variable provides the Ice setpoint of the Leaving Chilled Water when the chiller is operating in the Ice Mode. Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nviIceSpt Chiller temp_p two bytes Default Value -3.9°C ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 73: Igv Percentage Open

    Analog Input Present Value Object Name Comp1InverterTmp Compressor #2 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name Comp2InverterTmp LONWORKS No LONWORKS equivalent. www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 74: Liquid Line Refrigerant Pressure

    Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name LiquidLinePress LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoLiquLinePress Proprietary press two bytes ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 75: Liquid Line Refrigerant Temperature

    This output network variable indicates the current liquid line refrigerant temperature. There is a separate output for each compressor/circuit. See Compressor Select on page 43. (A36) LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoLiquLineTemp Proprietary temp_p two bytes www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 76: Maximum Rpm

    0 (no automatic update) LONWORKS: Fixed Point Scalar - unsigned long LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size SCPT_Reference SCPT Index nciMaxSendTime Chiller time_sec two bytes SCPT_maxSendTime ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 77: Minimum Rpm

    0 (no automatic update) LONWORKS: Fixed Point Scalar - unsigned long LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size SCPT_Reference SCPT Index nciMinSendTime Chiller time_sec two bytes SCPT_minSendTime www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 78: Motor Cavity Temperature

    Analog Input Present Value Object Name Comp1MotorCavityTmp Compressor #2 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name Comp2MotorCavityTmp LONWORKS No LONWORKS equivalent. ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 79: Oil Feed Pressure

    This output network variable indicates the current compressor oil feed pressure. There is a separate output for each compressor. Compressor Select on page 43. (A32) LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoOilFeedPress Proprietary press two bytes www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 80: Oil Feed Temperature

    This output network variable indicates the current compressor oil feed temperature. There is a separate output for each compressor. See Compressor Select on page 43. (A34) LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoOilFeedTemp Proprietary temp_p two bytes ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 81: Oil Sump Pressure

    This output network variable indicates the current compressor oil sump pressure. There is a separate output for each compressor. Compressor Select on page 43. (A33) LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoOilSumpPress Proprietary press two bytes www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 82: Oil Sump Temperature

    This output network variable indicates the current compressor oil sump temperature. There is a separate output for each compressor. See Compressor Select on page 43. (A35) LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoOilSumpTemp Proprietary temp_p two bytes ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 83: Outdoor Air Temperature

    Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name OutdoorAirTemp LONWORKS Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoOutdoorTemp Proprietary temp_p two bytes www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 84: Power Factor

    Analog Input Present Value Object Name Comp5PowerFactor Compressor #6 Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name Comp6PowerFactor LONWORKS No LONWORKS equivalent. ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 85: Pump Select

    SNVT Index SNVT Size nviPumpSelect Proprietary Switch two bytes Structure typedef struct { unsigned value; signed state; } SNVT_switch; Valid Range Value Field unused State Field Pump No. 1 Pump No. 2 www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 86: Receive Heartbeat

    The LONWORKS equivalent of this data point is part of the Chiller Status network output variable (see page 33). Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoChillerStat Chiller chlr_status 3 bytes ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 87: Alarms-Bacnet

    Alarm Classes Fault Alarms BACnet alarms in a MicroTech II Chiller Unit Controller are divided into three classes: Faults, Problems, and Warnings. Fault alarms require an acknowledgment from the operator. Fault alarms have the highest severity level. Problem alarms These alarms indicate that the compressor is shut down.

  • Page 88: Poll Multiple

    See Table Measurement Units Data Type Valid Range Default Value Integer Enumerated Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Analog Input Present Value Object Name AIFaultAlarm ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...
  • Page 89 Object Name MSIProblemAlarm Measurement Units Data Type Valid Range Default Value Character String Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Multi-state Input State Text Object Name MSIProblemAlarm www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 90: Poll Singular

    Default Value Integer Enumerated Object Identifier Property Identifier Object Type Type Enumeration Instance Property Name Property Enumeration Binary Input Present Value Object Name AlarmDigitalOutput Property Values 0 = No Alarm 1 = Alarm ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 91: Clearing Alarms-Bacnet

    2-AGS ‘B’ Vintage Only (up to three circuits) 3-ACZ Dual Circuit Only 4-ACZ Single Circuit Only 5-AGZ Dual Circuit Only 6-AGZ Single Circuit Only 7-Solid State Starter Option required. Not available on WMC. 8-WMC Only. www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...
  • Page 92 2-AGS ‘B’ Vintage Only (up to three circuits) 3-ACZ Dual Circuit Only 4-ACZ Single Circuit Only 5-AGZ Dual Circuit Only 6-AGZ Single Circuit Only 7-Solid State Starter Option required. Not available on WMC. 8-WMC Only. ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...
  • Page 93 2-AGS ‘B’ Vintage Only (up to three circuits) 3-ACZ Dual Circuit Only 4-ACZ Single Circuit Only 5-AGZ Dual Circuit Only 6-AGZ Single Circuit Only 7-Solid State Starter Option required. Not available on WMC. 8-WMC Only. www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...
  • Page 94 2-AGS ‘B’ Vintage Only (up to three circuits) 3-ACZ Dual Circuit Only 4-ACZ Single Circuit Only 5-AGZ Dual Circuit Only 6-AGZ Single Circuit Only 7-Solid State Starter Option required. Not available on WMC. 8-WMC Only. ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...
  • Page 95 2-AGS ‘B’ Vintage Only (up to three circuits) 3-ACZ Dual Circuit Only 4-ACZ Single Circuit Only 5-AGZ Dual Circuit Only 6-AGZ Single Circuit Only 7-Solid State Starter Option required. Not available on WMC. 8-WMC Only. www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 96: Alarms-Lonworks

    0–30 characters plus a NUL Alarm Message Structure terminator Variable Details LONWORKS Name Profile SNVT Type SNVT Index SNVT Size nvoAlarmDescr Chiller str_asc 31 bytes max Structure typedef struct { unsigned char ascii[31]; } SNVT_str_asc; ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...

  • Page 97: Clearing Alarms-Lonworks

    SNVT Type SNVT Index SNVT Size nviClearAlarm Proprietary switch two bytes Structure typedef struct { unsigned value; signed state; } SNVT_switch; Valid Range Value Field unused State Field No Alarm Clear Alarm www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 98: Lonworks Alarm Messages

    3-ACZ Dual Circuit Only 4-ACZ Single Circuit Only 5-AGZ Dual Circuit Only 6-AGZ Single Circuit Only 7-Solid State Starter Option required. Not available on WMC. 8-Should be “No Start - Interlock Switch” on WMC chillers. ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...
  • Page 99 3-ACZ Dual Circuit Only 4-ACZ Single Circuit Only 5-AGZ Dual Circuit Only 6-AGZ Single Circuit Only 7-Solid State Starter Option required. Not available on WMC. 8-Should be “No Start - Interlock Switch” on WMC chillers. www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...
  • Page 100 3-ACZ Dual Circuit Only 4-ACZ Single Circuit Only 5-AGZ Dual Circuit Only 6-AGZ Single Circuit Only 7-Solid State Starter Option required. Not available on WMC. 8-Should be “No Start - Interlock Switch” on WMC chillers. ED 15062-7 • MICROTECH II CHILLER CONTROLLER www.DaikinApplied.com...
  • Page 101 3-ACZ Dual Circuit Only 4-ACZ Single Circuit Only 5-AGZ Dual Circuit Only 6-AGZ Single Circuit Only 7-Solid State Starter Option required. Not available on WMC. 8-Should be “No Start - Interlock Switch” on WMC chillers. www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 102: Protocol Implementation Conformance Statement

    Device Management – Restart – B DM-R-B Product Description Standard Object Types Supported The MicroTech II Chiller Unit Controller with optional BACnet Communication Module is a microprocessor-based controller designed to operate Daikin Applied chillers and be integrated into BACnet building automation systems.

  • Page 103: Data Link Layer Options

     ISO 10646 (UCS-4)  JIS C 6226  No NOTE: Support for multiple character sets does not imply they can be supported simultaneously. Non-BACnet Equipment/Network(s) Support  Communication Gateway Non-BACnet equipment/networks(s): www.DaikinApplied.com ED 15062-7 • MICROTECH II CHILLER CONTROLLER...

  • Page 104: Index

    Daikin Applied Training and Development Now that you have made an investment in modern, efficient Daikin equipment, its care should be a high priority. For training information on all Daikin HVAC products, please visit us at www.DaikinApplied.com and click on Training, or call 540-248-9646 and ask for the Training Department.

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