Daikin BACnet IM 1234-1 Installation And Maintenance Manual
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Daikin BACnet IM 1234-1 Installation And Maintenance Manual

Daikin bacnet im 1234-1 thermostat
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Installation and Maintenance Manual
BACnet
Thermostat
®
Use with Daikin MicroTech
or as standalone
Integrated Systems
®
IM 1234-1
Group: Applied Air Systems
Part Number: IM 1234
Date: December 2014

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Summary of Contents for Daikin BACnet IM 1234-1

  • Page 1 Installation and Maintenance Manual IM 1234-1 Group: Applied Air Systems Part Number: IM 1234 Date: December 2014 BACnet Thermostat ® Use with Daikin MicroTech Integrated Systems ® or as standalone...

  • Page 2: Table Of Contents

    able of onTenTs able of onTenTs Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Sequences of Operation .

  • Page 3: Introduction

    Limited Warranty DANGER Consult your local Daikin Applied representative for warranty Dangers indicate a hazardous situation which will result in details. To find your local Daikin Applied representative, go to death or serious injury if not avoided. www.DaikinApplied.com NOTICE General Information Notices give important information concerning a process, procedure, special handling or equipment attributes.

  • Page 4: Specifications

    peCIfICaTIons peCIfICaTIons User Interface Relay Outputs The user interface is a color display and has five push buttons. Relay outputs are configured to represent BACnet binary Through the menu driven display, an operator can do the objects. The outputs control ON/OFF valves, speeds for three- following.

  • Page 5: Environmental Limits

    peCIfICaTIons Environmental Limits BACnet Thermostat Product Numbers Operating 32 to 120°F (0 to 49°C) Shipping -40 to 140°F (-40 to 60°C) Description Product Number Model Number Humidity 0-95% relative humidity (non-condensing) Fan Coil Unit Installation 2-pipe and 4-pipe Modulating or ON/OFF valves 2508035 MIT-FA-005 Modulating or Three-Speed Fan...

  • Page 6: Installation

    Thermostat on an inside wall where it can sense the average by Daikin Applied. Using screws other than the type supplied room temperature. Avoid locations with direct sunlight, heat may damage the BACnet Thermostat.

  • Page 7: Connecting Inputs

    nsTallaTIon Connecting Inputs The inputs for the BACnet Thermostat are configured for Figure 6: Wiring for a Fan Status Switch specific functions and do not require set up in the field. Not all inputs are required for every application. Remote Space Temperature Sensor (optional) Connect a 10kΩ, Type II thermistor temperature sensor to the remote space temperature (RS) input and ground (GND)

  • Page 8: Connecting Outputs

    nsTallaTIon Connecting Outputs Figure 10: Connections for a Modulating Fan CAUTION Can cause equipment damage . Improperly connecting loads or equipment to output terminals may damage the equipment. Connect only as shown in the following diagrams or application drawings. The BACnet Thermostat outputs are product dependent and are configured for specific applications.

  • Page 9: Connecting Power

    • Use only a Class-2 transformer of the appropriate size to supply power • Daikin Applied recommends powering the BACnet Thermostat from a dedicated controls transformer • Connect the transformer’s neutral lead to the COM terminal • Connect the AC phase lead to the 24VAC terminal •...

  • Page 10: Program Set Up

    rogram rogram User Functions Figure 14: BACnet Thermostat Display and Buttons This section covers topics for the end user in a facility. BACnet Thermostat user functions are limited to changing the following functions. • Active temperature setpoints • Fan operation •...
  • Page 11 rogram Entering a User Password User functions may require a password consisting of four numbers. Once a user password is entered it will remain active for 60 seconds after the last button is pushed. Table 3: Entering a User Password Procedure Steps Display...

  • Page 12: Setting The Operating Modes

    rogram Setting the Operating Modes The operating modes set the following functions. • Fan operation • Changing between heating and cooling • Override scheduled occupancy or occupancy that has been set by a schedule • Change the display units from Fahrenheit to Celsius Table 5: Setting the Operating Modes Procedure Steps...
  • Page 13 rogram Procedure Steps Display Entering an override setpoint can only take place if the BACnet Thermostat is in the unoccupied mode. 1. Push the button under unoccupied icon . NOTE: If a user password has previously been set up with a user password, entering a password is not required.

  • Page 14: Commissioning Functions

    rogram Commissioning Functions The topics in this section are advanced topics for control Enter the Commissioning Mode technicians and engineers. These topics cover procedures for For access to the commissioning functions you will need to the initial BACnet Thermostat setup. know Password 2.
  • Page 15 rogram Setting the Commissioning Setpoints The commissioning setpoints set the operational setpoints and limits for the BACnet Thermostat. Setting commissioning setpoints requires entering Password 2. NOTE: Not all setpoints in the following procedure are applicable to all models of BACnet Thermostat. Those setpoints are marked as (optional).

  • Page 16: Set Up Communications

    TP network. The choices are Auto, 9600, 19200, 38400, or 76800. NOTE: After changing a communication property the BACnet Thermostat will reset. NOTE: If setting up with the MicroTech Integrated System contact a Daikin Applied representative for the appropriate values. IM 1234-1 • BACNET THERMOSTAT www.DaikinApplied.com...

  • Page 17: Set The Time And Date

    rogram Set the Time and Date Setting the time and date requires entering Password 2. NOTE: If the BACnet Thermostat is connected to a BACnet network that includes a time service master, the time and date are automatically set to the network time and date.

  • Page 18: Setting The Occupancy Schedule

    rogram Setting the Occupancy Schedule The schedule in the BACnet Thermostat controls the occupancy mode. If the schedule is set to ON, the BACnet Thermostat uses the occupied setpoint as the active setpoint. If the schedule is OFF, the unoccupied setpoint is used. NOTE: The schedule in the BACnet Thermostat is a BACnet schedule object.

  • Page 19: Set Fan Coil Unit System Options

    rogram Set Fan Coil Unit System Options The items in the system menu control application specific functions for fan coil units. Entering the system options requires entering Password 2. Table 11: Set Fan Coil Unit System Options Procedure Steps Display 1.
  • Page 20 rogram Procedure Steps Display Select FAN MINIMUM or FAN MAXIMUM from the SYSTEM menu to set fan speed for modulation fans. • FAN MINIMUM – Sets the slowest speed at which the fan will run when a user sets the fan speed to LOW. Set fan speeds for modulating speed fans •...

  • Page 21: Set Rooftop Unit System Options

    rogram Set Rooftop Unit System Options The items in the system menu control application specific functions for roof top units. Entering the system options requires entering Password 2. Table 12: Set Roof Top Unit System Options Procedure Steps Display 1. Start at the temperature display. Starting display 2.
  • Page 22 rogram Procedure Steps Display To set up the economizer do the following: 1. From the SYSTEM menu choose ECON ENABLE to enable the economizer application. 2. From the SYSTEM menu choose MIN ECON DAMPER to set the minimum position for the economizer damper. Enable the economizer 3.

  • Page 23: Set Heat Pump Unit Systems Options

    rogram Set Heat Pump Unit Systems Options The items in the system menu control application specific functions for heat pump units. Entering the system options requires entering Password 2. Table 13: Set Heat Pump Unit Systems Options Procedure Steps Display 1.
  • Page 24 rogram Procedure Steps Display To set up the economizer do the following: 1. From the SYSTEM menu choose ECON ENABLE to enable the economizer application. 2. From the SYSTEM menu choose MIN ECON DAMPER to set the minimum position for the economizer damper. Enable the economizer 3.

  • Page 25: Advanced Options

    rogram Advanced Options Use the advanced options to set up the following items. • Choosing an application and units of measure. • Adjusting the PID loops • Changing passwords • Calibrating inputs • Setting the display banking • Modifying access to users with Password 1. Setting the advance options requires entering Password 2.
  • Page 26 rogram Procedure Steps Display Choose CALIBRATION from the ADVANCED menu to calibrate an input. The BACnet Thermostat includes two calibration entries; one for the internal temperature sensor and one for the optional remote temperature sensor connected to the RS terminal. Calibrate the inputs Enter a calibration factor to adjust either input for sensor inaccuracies.

  • Page 27: Sequences Of Operation

    equenCes of peraTIon equenCes of peraTIon Topics in this section cover the sequences of operation for the Occupancy BACnet Thermostat. These are advanced topics for control’s technicians and engineers. The BACnet Thermostat is designed to operate as a stand- alone controller and can determine occupancy based on its internal occupancy schedule.

  • Page 28: Pid Control Loops

    equenCes of peraTIon PID Control Loops Two-Pipe Water Supply Temperature Evaluation A PID control loop calculates an error value from the difference between the measured room temperature and the active For two-pipe fan coil units, the BACnet Thermostat uses the setpoint.

  • Page 29: Modulating Cooling And Heating For Rooftop Units

    equenCes of peraTIon Fan Speed Setup Valve Action The BACnet Thermostat can control either variable speed fans The BACnet Thermostat supports both normal and reverse or fans with up to three speeds. Fans speed control is set up valve action that can be set from the user interface. from the user interface by a user with Password 2.

  • Page 30: Fan Control For Rooftop And Heat Pump Units

    equenCes of peraTIon Fan Control for Rooftop and Heat Heat Pump Unit Specific Functions Pump Units The heat pump unit fan and staging is similar to the roof top unit fan and staging principles. A user with Password 1 can set the BACnet Thermostat controlled fan to either run continuously or to start Reversing Valve Action automatically on a call for cooling or heating.

  • Page 31: Application Drawings

    pplICaTIon rawIngs pplICaTIon rawIngs This section covers the drawings, materials, and instructions for specific BACnet Thermostat applications. Each BACnet Thermostat model is designed for a specific application. Fan Coil Unit Applications This section covers applications for fan coil units. Fan Coil Unit – Four-Pipe with Three-Speed Fan and ON/OFF Valves •...
  • Page 32 pplICaTIon rawIngs Fan Coil Unit – Four-Pipe with Three-Speed Fan and Modulating Valves • Fan status switch (FST) and discharge air temperature sensor (DAT) are optional. They are typically used only when the BACnet Thermostat is connected to a network. •...
  • Page 33 pplICaTIon rawIngs Fan Coil Unit – Four-Pipe with Modulating Fan and ON/OFF Valves • Fan status switch (FST) and discharge air temperature sensor (DAT) are optional. They are typically used only when the BACnet Thermostat is connected to a network. •...
  • Page 34 pplICaTIon rawIngs Fan Coil Unit – Four-Pipe with Modulating Fan and Modulating Valves • Fan status switch (FST) and discharge air temperature sensor (DAT) are optional. They are typically used only when the BACnet Thermostat is connected to a network. •...
  • Page 35 pplICaTIon rawIngs Fan Coil Unit – Two-Pipe with Three-Speed Fan and ON/OFF Valves • The water temperature sensor (WST) is required for two- pipe units. • Fan status switch (FST) and discharge air temperature sensor (DAT) are optional. They are typically used only when the BACnet Thermostat is connected to a network.
  • Page 36 pplICaTIon rawIngs Fan Coil Unit – Two-Pipe with Three-Speed Fan and Modulating Valve • The water temperature sensor (WST) is required for two –pipe units. • Fan status switch (FST) and discharge air temperature sensor (DAT) are optional. They are typically used only when the BACnet Thermostat is connected to a network.
  • Page 37 pplICaTIon rawIngs Fan Coil Unit – Two-Pipe with Modulating Fan and ON/OFF Valve • The water temperature sensor (WST) is required for two- pipe units. • Fan status switch (FST) and discharge air temperature sensor (DAT) are optional. They are typically used only when the BACnet Thermostat is connected to a network.
  • Page 38 pplICaTIon rawIngs Fan Coil Unit – Two-Pipe with Modulating Fan and Modulating Valve • The water temperature sensor (WST) is required for two- pipe units. • Fan status switch (FST) and discharge air temperature sensor (DAT) are optional. They are typically used only when the BACnet Thermostat is connected to a network.

  • Page 39: Rooftop Unit Applications

    pplICaTIon rawIngs Rooftop Unit Applications This section covers applications for rooftop units. Roof Top Unit – Two-Stage Gas Heat and Two-Stage DX Cooling • Fan status switch (FST) and discharge air temperature (DAT) and outdoor air temperature (OAT) sensors are optional.
  • Page 40 pplICaTIon rawIngs Rooftop Unit – Two-Stage Gas Heat and Two-Stage DX Cooling with Economizer • Fan status switch (FST) is optional. Typically it is used only when the BACnet Thermostat is connected to a network. • Discharge air temperature (DAT) and outdoor air temperature (OAT) sensors are required for economizer operation.
  • Page 41 pplICaTIon rawIngs Roof Top Unit – Two-Stage Gas Heat, Chilled Water Cooling with Economizer • Fan status switch (FST) is optional. Typically it is used only when the BACnet Thermostat is connected to a network. • Discharge air temperature (DAT) and outdoor air temperature (OAT) sensors are required for economizer operation.
  • Page 42 pplICaTIon rawIngs Roof Top Unit – Cooling and Heating with Modulating Valves with Economizer • Fan status switch (FST) is optional. Typically it is used only when the BACnet Thermostat is connected to a network. • Discharge air temperature (DAT) and outdoor air temperature (OAT) sensors are required for economizer operation.

  • Page 43: Heat Pump Unit Applications

    pplICaTIon rawIngs Heat Pump Unit Applications This section covers applications for heat pump units. Heat Pump Unit – Three Heat, Two Cool • Fan status switch (FST) and discharge air temperature sensor (DAT) are optional. They are typically used only when the BACnet Thermostat is connected to a network.
  • Page 44 pplICaTIon rawIngs Heat Pump Unit – Three Heat, Two Cool and Economizer • Fan status switch (FST) and discharge air temperature sensor (DAT) are optional. They are typically used only when the BACnet Thermostat is connected to a network. • The outdoor air temperature sensor (OAT) is required for compressor lockout based on outside air temperature.

  • Page 45: System Integration

    ysTem nTegraTIon ysTem nTegraTIon Topics in this section cover integrating BACnet Thermostat controllers into a building automation network. These are advanced topics for control technicians and engineers. The BACnet Thermostat can function as a stand-alone controller or it can be connected to a BACnet MS/TP network. The topics in this section are reference material for control technicians or engineers that will be installing and setting up a BACnet Thermostat that is connected to a network.
  • Page 46 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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