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Daikin MicroTech Operation And Maintenance

Unit ventilator controls for applied classroom unit ventilators
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Operation and Maintenance
MicroTech
®
for Daikin Applied Classroom
Unit Ventilators
Unit Ventilator Controls
OM 1280-2
Group: Controls
Part Number: 910276581
Date: January 2020

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  • Page 1 Operation and Maintenance OM 1280-2 Group: Controls Part Number: 910276581 Date: January 2020 MicroTech Unit Ventilator Controls ® for Daikin Applied Classroom Unit Ventilators...

  • Page 2: Table Of Contents

    Purge Mode ........25 OM 1280-2 • MICROTECH UNIT CONTROLLER...
  • Page 3 Appendix – Local User Interface (LUI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64 www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 4: Hazardous Information Messages

    Chloride) and CPVC (Clorinated Polyvinyl Chloride) piping in chilled water For installation and general information on the MicroTech Unit systems. In the event the pipe is exposed to POE (Polyolester) oil used Ventilator Controller, refer to IM 1286, MicroTech Unit Ventilator in the refrigerant system, the pipe can be chemically damaged and pipe Controller.

  • Page 5: Acronyms/Abbreviations

    Hot Water Ventilation Cooling Low Limit Setpoint VCLL Ventilation Cooling Lockout VCLO Indoor Air Ventilation Cooling Setpoint Indoor Air Enthalpy Wet Heat Indoor Air Fan Source (water in) Temperature Differential WITD Indoor Air Temperature www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 6: Local User Interface (Lui) Keypad

    Using the LUI Keypad the LUI — Red LED OFF = No active alarms. The LUI shown in Figure 1 is optional on Daikin Applied Unit Keypad Navigation Ventilators provided with MicroTech controls. Using the keypad on the LUI, operating conditions, system alarms, and control parameters can be monitored.
  • Page 7 NOTE: If previous value is incorrect or changed use the BACK button to revise previously entered value. ENTER Change with ▲ ▼ ARROWS and use accept. www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...
  • Page 8 Note: KeyInFan • Use ▼ to place flashing cursor next to “ ” It is recommended that you contact the Daikin Applied Terminal Systems Technical Response at TechResponseATS@daikinapplied.com or (315) 282-6434 for assistance if ENTER • Press to select needed before making changes to unit configuration, setpoints, or network parameters.
  • Page 9 — Active designates when the alarm occurred — Inactive designates when the alarm was cleared — Use ▲ to view older alarms and use ▼ to view more recent alarms www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 10: State Programming

    Description of Operation Description of Operation State Programming The MicroTech UVC takes advantage of “state” machine The state diagrams presented in the following sections programming to define and control unit ventilator operation. A consist of several features including super states, states, “state”...

  • Page 11: Uvc Unit Modes

    Night Purge is a full ventilation with exhaust mode, during Normal UVC modes State names which room comfort is likely to be compromised. Therefore, Daikin strongly recommends using Night Purge only when the Night Purge Night Purge space is unoccupied.

  • Page 12: Discharge Air Temperature Control

    Figure 4: Discharge Air Temperature Heating vs. Discharge Air Temperature Heating Setpoint cpMaxDATHtgSetpt (default: 120°F) Effective DAT Heating Setpoint (example: 100°F) cpMinDATHtgSetpt (default: 80°F) cpMaxDATHtgCntlSetpt (default: 70°F) Control Temperature (example: 68.5°F) cpMinDATHtgCntlSetpt (default: 67°F) DATControlTempHtg OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 13 Figure 5: Discharge Air Temperature Cooling vs. Discharge Air Temperature Cooling Setpoint cpMaxDATClgSetpt (default: 65°F) Effective DAT Cooling Setpoint (example: 60°F) cpMinDATClgSetpt (default: 55°F) cpMaxDATClgCntlSetpt (default: 78°F) Control Temperature (example: 76.5°F) cpMinDATClgCntlSetpt (default: 75°F) DATControlTempClg www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 14: Heat Mode (Super State)

    -Electric Heat Stage 1 and 2 On Staging Down -Electric Heat Stage 1 On Primary Heating -OA Damper at 30% Open Capacity -IA Fan Low Speed Degrees Below Discharge Air Setpoint and Time Satisfied OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 15 -Electric Heat Stage 1 On Down -Compressor Heat Stage 2 On Secondary Heating -Compressor Heat Stage 2 On Capacity -Compressor Heat Stage 1 On Primary Heating Capacity Degrees Below Discharge Air Satisfied Setpoint and Time www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 16: Wet Heat Valve Control

    Both a wet-heat end-of-cycle (EOC) valve and a chilled water end-of-cycle ensures that the wet heat valve is open and that the chilled water (EOC) valve are strongly recommended by Daikin. If an EOC valve is not valve is closed upon loss of power. Each proportional actuator is installed, it is likely that over-heating or over-cooling of the space will occur.

  • Page 17: End-Of-Cycle Valve Interlock With Low Outside Air Temperature

    100% capacity and the Low Limit can override the OA damper position (see ”Outdoor Air Damper Operation” on page 35) and adjust the OA damper toward closed as necessary to maintain the VCLL. www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 18: Emergency Heat Mode (Super State)

    De-pressurization or Shutdown If entered automatically Emergency Heat Full Heat Is SpaceTemp return to O > (EHS+5.4F) Mode Mode or Fan Only Mode. If entered by network input go to Normal Heat Mode OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 19 Defrost Low Suction Setpoint + 60 Seconds Mode Differential Heat Heat Mode Mode Low Limit DAT < VCLL Mode Return to OADP = OADH IAT > OCS Fan Only DAT > VCLL Mode www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 20: Cool Mode (Super State)

    OADP = OADH DAT > VCLL Continually Check Input Are inputs Can’t Cool Are inputs IAT, DAT, OAT valid? Mode valid? Econ avail. Mech cool avail. Continue in Return to current mode previous state OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...

  • Page 21: Economizer State

    Reset will automatically occur twice in a 7 day period with a third occurrence requiring a manual reset of the alarm through a remote temperature sensor, LUI keypad, network communications, or a power cycle. www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 22: Chilled Water Valve Control

    Both a wet-heat end-of-cycle (EOC) valve and a chilled water end-of-cycle valve is closed upon loss of power. Each proportional actuator is (EOC) valve are strongly recommended by Daikin. If an EOC valve is not driven by the UVC using 0-10VDC outputs (scaled to 2-10VDC).

  • Page 23: Reheat State

    Cooling super state, and the unit will enter the dehumidification state when the space RH is above the space RH setpoint or the Dehumidification binary input is closed. 2. Passive Dehumidification ONLY. www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 24: Passive Dehumidification State (Optional)

    The CO demand controlled ventilation function (optional) will be available (see “CO Demand Controlled Ventilation (optional)” on page 37), and the OA damper is adjusted as needed to maintain the CO setpoint. OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...

  • Page 25: Special Purpose Unit Modes

    The UVC stops all normal heating and cooling but does allow emergency heat if required. The purge mode can only be accessed via a network connection through the LUI keypad, or with ServiceTools software. www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 26: Unit Mode Priority

    3. Normal indicates the UVC power-up condition. 4. De-energized indicates that the contacts connected to this binary input are open. 5. Energized indicates that the contacts connected to this binary input are closed. OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...

  • Page 27: Occupancy Modes

    Occupancy Manual Command if there is reason to ensure tenant override does not occur. Bypass Mode When the MicroTech UVC is connected to a The Bypass mode (also called Tenant Override) is the equivalent wall sensor and building network, the building of a temporary occupied mode.
  • Page 28 No binary inputs are configured for an Unoccupied input. A binary input is configured for an Unoccupied input and that input indicates occupied. A binary input is configured for an Unoccupied input and that input indicates unoccupied. OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...

  • Page 29: Additional Occupancy Features

    Alarm Active: Specific 0.3 (1.3 ALARM_ACTIVE Alarm Determines Between Number of Flashes Cycles) WINK Network Wink Activity SERVICE_TEST Service Test Mode Continually UNOCC Unoccupied Mode STANDBY Standby Mode Occupied Bypass OCC_BYPASS Continually Mode OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...

  • Page 30: Network Setpoint Shift Capability

    LUI keypad to make a Setpoint Offset change. Cycle unit power and restore the ability to change the Setpoint Offset from the +/–5°F adjustment on the remote wall-mounted sensor. OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...

  • Page 31: Effective Setpoint Calculations

    Unoccupied Cooling Set Point Shift (UCSS) If both entering paths have Occupied Heating Set Point Shift (OCSS) valid values, then the keypad/display value Standby Heating Set Point Shift (SHSS) has priority. Unoccupied Heating Set Point Shift (UHSS) www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 32: Proportional Integral (Pi) Control Loops

    Effective Setpoint = OHS + AbsOffset + Setpoint Offset + Setpoint Shift = 68.0°F + 1.0°F + 3.0°F – 2.0°F = 70.0°F Proportional Integral (PI) Control Loops The MicroTech UVC uses PI-loop control for heating, cooling and ventilation processes within the unit ventilator. Numerous PI algorithms can be used depending upon the unit ventilator configuration (Table 15).

  • Page 33: Pi Control Parameters

    A small offset is not necessarily a problem since integral time to a higher setting. most systems have a small “natural” offset and the integral function automatically works to eliminate or reduce this effect. www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 34: Indoor Air Fan Operation

    When the fan is off, the OA damper is possible. When in auto fan mode, a maximum of six fan speed closed. Daikin recommends using this feature only when it is changes per hour is allowed (by default). This prevents frequent acceptable that normal ventilation is not required.

  • Page 35: 3-Speed Adjustable

    When fan control is in the Auto mode, the UVC adjusts the fan speed up and down in an attempt to maintain the control temperature setpoint. The fan capacity percentage required is calculated using a PI loop comparing the control temperature and effective setpoint. www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 36: Economizer Operation

    Leading Edge Reliable Reliable Unreliable Unreliable Test B Reliable Reliable Unreliable Unreliable Test B NOTE: The hard-wired sensor and the equivalent input must both be unreliable for the value to be considered unreliable. OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...

  • Page 37: Network Space Humidity Sensor Capability

    If necessary, the ASHRAE II control algorithm overrides room control and modifies the heating, ventilating, and cooling functions (as available) to prevent the discharge air temperature from falling below the VCLL setpoint. www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 38: Compressor Operation

    50%. 4. If heating is required, the wet heat valve modulates above 50%, as needed. Auxiliary heat may be used as needed. When the freeze-stat cuts-in, the UVC returns to normal operation. OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...

  • Page 39: Face And Bypass Damper Control

    UVC to determine if the water can be used for heating or cooling. The Source (Water-In) Temp Differential is the minimum differential between water-in and room temperature before water is used for heating or cooling. www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 40: External Binary Inputs

    UVC. Multiple units can be connected to a close (ventilation lockout signal), the UVC closes the OA single set of dry contacts. For wiring examples, see MicroTech damper. When the contacts open, the UVC returns to normal Unit Ventilator Controller IM 1286.

  • Page 41: External Binary Outputs

    These outputs are relay type outputs that are intended to be used with signal level voltages (24VAC maximum) only. For wiring examples, see MicroTech Unit Ventilator Controller IM 1286. NOTE: Not all of the functions listed can be used at the same Exhaust Fan time.

  • Page 42: Uvc Inputs And Outputs

    10K Type II Thermistor Indoor Coil Refrigerant/Suction Refrigerant Temperature H11-4 Sensor Ground H11-5 AI 13 Conductivity Condensate H12-1 AI 14 0-10VDC Input /VOC H12-2 AI 15 0-10VDC Input H12-3 AI 16 0-10VDC Input OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 43 24VAC Common DO12 DO12 24VAC or Dry Contact Output Compressor 1/2 position Cooling Valve DO13 DO13 24VAC or Dry Contact Output Compressor 2 DO14 DO14 24VAC or Dry Contact Output Drain Pan Heater www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 44: Trending Parameters

    DAT Heating Reset input used to determine control value to be enabled niDATRstHtln Network DAT Heating Reset. BAS-commanded parameter HydroClCmd Hydronic Cooling Command DATDehumSpt DAT Dehumidification Setpoint Hydronic Heating Available. Indicates if hydronic heating is available HydroHtAvl to be enabled OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 45 Outdoor Air Damper Position Medium Speed. Minimum outdoor air OAMinPosMedSpd damper position for space fan operating at medium speed Outdoor Air Temperature niOAT Network Input Outdoor Air Temperature. BAS-commanded input OccClSpt Occupied Cooling Setpoint www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 46: Uvc Configuration Parameters

    Used in DAT reset calculation when MnDATClSpt: 40°F to 100°F (55.0°F) cpDATResetClgSel is RETURN, SPACE or OAT Used in DAT reset calculation when MxDATClSpt: 40°F to 100°F (65.0°F) cpDATResetClgSel is RETURN, SPACE or OAT OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 47 1 to 60 value of six means the fan speed can change once every 10 minutes ExhStrtPos 0% to 100% (12%) OADE Energize Exhaust Fan /OAD Position Setpoint EmergHtEn DISABLE, ENABLE (ENABLE) Emergency Heat Enable www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...
  • Page 48 5% to 100% BrkptAutoHi 5% to 100% The percent speed transition point for high fan The percent speed transition point differential. BrkptAutoDiff 2% to 20% (2%) This value is added when going up in speed OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 49 Configures if the sensor is installed. OATSens NOT_INSTALLED, INSTALLED (INSTALLED) Configures if the sensor is installed. LWTSens NOT_INSTALLED, INSTALLED (INSTALLED) Configures if the sensor is installed. InHumSens NOT_INSTALLED, INSTALLED (INSTALLED) Configures if the sensor is installed. OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 50 CfgBI5 (BOILERLESS_EH) Input Selects virtual function for binary input. Discrete CfgBI6 (VENT_LOCKOUT) Input Selects virtual function for binary input. Discrete CfgBI7 (UNOCCUPIED)/(NONE) Input Selects virtual function for binary input. Discrete CfgBI8 (SHUTDOWN) Input OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 51 60 second time. The low suction line temperature alarm setpoint is defaulted to 28°F. The alarm becomes LwSctLnSpt 20°F to 35°F INACTIVE when the temperature gets to this setpoint + cpLowSuctLineProtDiffSetpt. OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 52 NVI will be used. Minimum Send Time. This amount of time must MnTimeOut 0 to 6553.4 sec (0.0 sec) 6553.4 pass before an NVO can be sent. OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...

  • Page 53: Alarm And Fault Monitoring

    Fault Factory Configuration String Problem Manual ControlTempAlarm Fault Control Temp Not Available Manual ConfigurationAlarm Warning Configuration Issue Auto ControlBoardAlarm Fault Control Board Hardware Failure Auto WaterCoilFreezeFaultAlarm Fault Hydronic Water Coil Freeze Fault Auto OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...

  • Page 54: Sensor Faults And Failures

    Low Limit + 1.8F • Fault relay is energized if alarm output configuration is Reset: Auto reset FAULTPROB • LED output alarm indication is activated Deactivate: Sensor reading goes back in range Reset: Auto OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 55 • LED output alarm indication is activated • Compressor is immediately de-energized (MultAlarmComp = ACTIVE) • Outdoor fan is de-energized normally then remains de- energized Deactivate: Sensor reading goes back in range. Reset: Auto www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...
  • Page 56 • Alarm is indicated on the LUI • Fault relay is energized if alarm output configuration is FAULTPROB • LED output alarm indication is activated • Compressor is immediately de-energized Deactivate: Sensor reading goes back in range. Reset: Auto OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 57 • LED output alarm indication is activated Reset: Auto Deactivate: The measured entering water temperature is more than 5°F below the control temperature for cooling or more than 5°F above the control temperature for heating. Reset: Auto www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...
  • Page 58 • Fault relay is energized if alarm output configuration is closed. FAULTPROB Reset: Auto • LED output alarm indication is activated Deactivate: Compressor or economizer cooling becomes available, or the entering water temperature becomes cold enough to provide cooling. Reset: Auto OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 59 Deactivate: Discharge air temperature >Discharge air economizer low limit setpoint + 1.8°F and the outdoor air • Set Filter Change Hours to 0 damper position has returned to its calculated minimum Reset: Auto. position. Reset: Auto www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...
  • Page 60 • Chilled water valve is fully closed to the coil (4 pipe) Deactivate: Space or return/room air temperature are in range and the alarm is reset from the network, LUI, or room sensor. Reset: Manual OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 61 Deactivate: Internal application point ControlBoardStatus bit Deactivate: Freeze stat input closes field is 0. Reset: Auto Reset: Auto (this is not likely to reset as the cause is usually a hardware problem with the board). www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...

  • Page 62: Troubleshooting Temperature Sensors

    2003 -16.11 77620 11.67 18378 39.44 5447 67.22 1927 -15.00 72911 12.78 17437 40.56 5207 68.33 1855 -13.89 68518 13.89 16550 41.67 4981 69.44 1785 -12.78 64419 15.00 15714 42.78 4766 70.56 1718 OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...

  • Page 63: Troubleshooting Humidity Sensors

    1400 RH (%) VDC (mV) RH (%) VDC (mV) 1500 1330 2480 1600 1475 2600 1700 1610 2730 1800 1740 2860 1000 1900 1870 2980 1995 3115 2120 3250 2235 3390 2360 3530 www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...
  • Page 64 LocSptShft: Local hardwired setpt shift. ClgSptOffst: Current calculated clg setpoint offset HtgSetptOffst: Current calculated htg setpoint offset NtSptOffst: Network setpoint offset. NtOccClSptSh: Net Occupied cooling setpoint shift. NtStdClSptSh: Net Standby cooling setpoint shift. OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 65 Min OAD position override. NetOADIn: Client/Server OAD position. NetEconEn: Network economizer enable. NetSpcCO2: Network CO2 level in the space. FaceBypassDamper FBDmpr: Face & bypass damper position. FB_PIOut: Face & bypass PI loop output. www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...
  • Page 66 Uses LUIs GetText function with Index parameter to return one of up to 32 History Alarm #1 alarms. Uses LUIs GetText function to return a whole screens-worth of data. Returns the following: Alarms|Active TechSupport: For Tech Support call 800-432-1342 or www.daikinapplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 67 BrkptAutoDiff: Speed transition differential. PWMLow: PWM_3Fixed low fan speed. PWMMed: PWM_3Fixed medium fan speed. PWMHigh: PWM_3Fixed high fan speed. RstMnFan: Min fan when controlled by reset. RstMxFan: Max fan when controlled by reset. www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...
  • Page 68 Economizer enthalpy setpoint. EconEnthDiff: Economizer enthalpy setpoint differential. OAMxPos: Maximum Outdoor Air damper position. OALockEn: OA damper low temperature lockout. OALockSpt: OA damper low temp lockout setpoint. OATSpt: Economizer OAT setpoint. EconEn: Keypad economizer enable. OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 69 Hydro clg valve integral gain. ClMnPos: Output when temp delta is zero. ClMxDeltaTmp: Cntl and target delta for vlv at 100%. ClMxPos: Output when delta is max dlta temp. Set|ExhaustFan ExhStrtPos: Energize Exh fan OAD position setpt. www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...
  • Page 70 CfgAnIn14: Select virtual function for ai14. Serv|AnaIn|Virtual CO2: CO2 virtual input. RstVlts: Reset volts virtual input. EWT: Entering water virtual temp. OutCoilTmp: Outdoor coil virtual temp. InCoilTmp: Indoor coil virtual temp. AVAILABLE Serv|BinIn OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 71 Binary output 8 status. BO9: Binary output 9 status. BO10: Binary output 10 status. BO11: Binary output 11 status. BO12: Binary output 12 status. BO13: Binary output 13 status. BO14: Binary output 14 status. www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...
  • Page 72 ECM supply fan override. BMSComm|BACnet BMSComm NetInAlarm: LonWorks unit status InAlarm. NetMode: LonWorks unit status Mode. NetHtPri: LonWorks unit status Heat Out Primary. NetHtSec: LonWorks unit status Heat Out Secondary. NetCool: LonWorks unit status Cool Out. OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 73 Wednesday occupied 1 minute. WedUnoccHr1: Wednesday unoccupied 1 hour. WedUnoccMin1: Wednesday unoccupied 1 minute. WedOccHr2: Wednesday occupied 2 hour. WedOccMin2: Wednesday occupied 2 minute. WedUnoccHr2: Wednesday unoccupied 2 hour. WedUnoccMin2: Wednesday unoccupied 2 minute. www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...
  • Page 74 How many days to run holiday 5 sched. HolEnable5: Holiday 5 enable. Set|Sched|Hol|Hol6 HolStartMM6: Holiday 6 Month. HolStartDD6: Holiday 6 Date. HolDur6: How many days to run holiday 6 sched. HolEnable6: Holiday 6 enable. OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 75 Offset remote sensor system mode. OfRSFanSpd: Offset remote sensor fan speed mode. OfSpcTmp: Offset space temp. OfHumIn: Offset indoor humidity. OfHumOut: Offset outdoor humidity. OfLnVlt: Offset line voltage. OfEWT: Offset entering water temp. OfRstVlt: Offset reset volts. www.DaikinApplied.com OM 1280-2 • MICROTECH UNIT CONTROLLER...
  • Page 76 Help Text (Menu Index) (None, User, Manager, Technician) “RO” if Read Only Set|AuxHeat AuxHtOnDiff: Aux heat on [HtgSetpt-OnDiff]. AuxHtOffDiff: Aux heat off [HtgSetpt-OnDiff+OnDiff]. niAuxHeatEn: Aux heat network enable. CfgAuxHt_Rev: Aux heat output reverse acting. OM 1280-2 • MICROTECH UNIT CONTROLLER www.DaikinApplied.com...
  • Page 78 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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