Daikin BACnet Series Installation Manual
  1. Manuals
  2. Brands
  3. Daikin Manuals
  4. Thermostat
  5. BACnet Series
  6. Installation manual

Daikin BACnet Series Installation Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Only personnel that have been trained to install, adjust, service
or repair(hereinafter, "service") the equipment specified in this
manual should service the equipment. The manufacturer will not
be responsible for any injury or property damage arising from
improper service or service procedures. If you service this unit,
you assume responsibility for any injury or property damage
which may result. In addition, in jurisdictions that require one or
more licenses to service the equipment specified in this manual,
only licensed personnel should servise the equipment.
Improper installation, adjustment, servicing or repair of the
equipment specified in this manual, or attempting to install,
adjust, service or repair the equipment specified in this manual
without proper training may result in product damage, property
damage, personal injury or death.
IO-DAPPS
WARNING
www.daikinac.com
BACnet
Thermostat
™
INSTALLATION MANUAL
Group: Light Commercial
10/19

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the BACnet Series and is the answer not in the manual?

Questions and answers

Related Manuals for Daikin BACnet Series

Summary of Contents for Daikin BACnet Series

  • Page 1 BACnet Thermostat ™ INSTALLATION MANUAL Group: Light Commercial WARNING Only personnel that have been trained to install, adjust, service or repair(hereinafter, “service”) the equipment specified in this manual should service the equipment. The manufacturer will not be responsible for any injury or property damage arising from improper service or service procedures.

  • Page 2: Table Of Contents

    Table of Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Program Set Up .

  • Page 3: Introduction

    Limited Warranty WARNING Consult you local Daikin representative for warranty details. To find you Warnings indicate potentially hazardous situations, which can result local Daikin representative, go to www.daikinac.com in property damage, severe personal injury, or death if not avoided.

  • Page 4: Specifications

    Specifications User Interface Relay Outputs The user interface is a color display and has five push buttons. Relay outputs are configured to represent BACnet binary objects. Through the menu driven display, an operator can do the following. The outputs control ON/OFF valves, speeds for three-speed fans, fan start circuits, or other equipment that requires an on or off input signal.

  • Page 5: Environmental Limits

    Specifications Environmental Limits BACnet™ Thermostat Product Numbers Operating 32 to 120°F (0 to 49°C) Description Product Number Roof Top Unit Shipping -40 to 140°F (-40 to 60°C) Modulating or ON/OFF valves Humidity 0-95% relative humidity (non-condensing) One or two-stages heat Installation One or two stages cooling 2508034...

  • Page 6: Installation

    Mounting the BACnet Thermostat To prevent mounting screw heads from touching the circuit board in the controller, use only the mounting screw supplied by Daikin. For the most accurate performance, install the BACnet Thermostat on Using screws other than the type supplied may damage the an inside wall where it can sense the average room temperature.

  • Page 7: Connecting Inputs

    Installation Connecting Inputs The inputs for the BACnet™ Thermostat are configured for specific Figure 6: Wiring for a Fan Status Switch 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) terminals.

  • Page 8: Connecting Outputs

    • Use only a Class-2 transformer of the appropriate size to supply power • Daikin 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 9 Installation User Functions This section covers topics for the end user in a facility. Figure 9: BACnet Thermostat Display and Buttons BACnet™ Thermostat user functions are limited to changing the following functions. • Active temperature setpoints • Fan operation • Changing between heating and cooling •...

  • Page 10: Program Set Up

    Program Set-Up 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 11 Program Set-Up 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 12 Program Set-Up 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 13: Commissioning Functions

    Program Set-Up Commissioning Functions The topics in this section are advanced topics for control technicians Enter the Commissioning Mode and engineers. These topics cover procedures for the initial BACnet™ For access to the commissioning functions you will need to know Thermostat setup.
  • Page 14 Program Set-Up 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 15: Set Up Communications

    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 representative for the appropriate values. IO-DAPPS www.daikinac.com...

  • Page 16: Set The Time And Date

    Program Set-Up 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. Table 9: Set the Time and Date Procedure Steps...

  • Page 17: Setting The Occupancy Schedule

    Program Set-Up 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.

  • Page 18: Set Rooftop Unit System Options

    Program Set-Up 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 11: Set Roof Top Unit System Options Procedure Steps Display 1.
  • Page 19 Program Set-Up Procedure Steps Display To set up staged cooling and heating do the following: 1. From the SYSTEM menu choose MIN OFF TIME to enter the time a stage must remain turned off before it can be turned on again. Set up staged cooling and heating 2.

  • Page 20: Set Heat Pump Unit Systems Options

    Program Set-Up 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 12: Set Heat Pump Unit Systems Options Procedure Steps Display 1.
  • Page 21 Program Set-Up 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 22: Advanced Options

    Program Set-Up 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 23 Program Set-Up 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 24: Sequences Of Operation

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

  • Page 25: Pid Control Loops

    Sequences of Operation PID Control Loops Staged Cooling As the demand for cooling increases, the BACnet Thermostat starts the A PID control loop calculates an error value from the difference first stage of cooling when the cooling PID loop rises above 95% and between the measured room temperature and the active setpoint.

  • Page 26: Fan Control For Rooftop And Heat Pump Units

    Sequences of Operation Fan Control for Rooftop and Heat The Discharge Air Temperature setpoint resets between room temperature and the limit for minimum discharge air temperature Pump Units as the cooling loop varies between 0 and 50%. If the Discharge Air Temperature decreases below 55°F, the Outside Air Damper returns to A user with Password 1 can set the BACnet™...

  • Page 27: Rooftop Unit Applications

    Sequences of Operation 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. They are typically used only when the BACnet™...

  • Page 28: Heat Pump Unit Applications

    Application Drawings 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™...

  • Page 29: Connecting To A Network

    Application Drawings 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.
  • Page 30 Notes IO-DAPPS www.daikinac.com...
  • Page 31 Notes IO-DAPPS www.daikinac.com...
  • Page 32 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 Daikin HVAC products, please visit us at www.daikinac.com and click on Training. Warranty Consult your local Daikin representative for warranty details. To find your local Daikin representative, go to www.daikinac.com.

Table of Contents