Data Aire Mini dap4 Installation, Operation & Maintenance Manual
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Data Aire Mini dap4 Installation, Operation & Maintenance Manual

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Summary of Contents for Data Aire Mini dap4

  • Page 2 Data Aire, Inc. reserves the right to make design changes for the purpose of product improvement or to withdraw any design without notice.

  • Page 3: Table Of Contents

    4.0 Alarms/Clearing Alarms ..................40 4.1 Acknowledging an Alarm ................40 4.2 Clearing Alarms..................... 42 5.0 Mini dap4 Control Logic ..................43 Temperature Sensor Chart ..................51 Addendum for the gPod Model .................. 55 3 • Mini dap4 User Manual...

  • Page 4: Introduction

    INTRODUCTION The Mini dap4 continues the tradition of advanced electronic devices from Data Aire for monitoring and control of computer room air conditioning units which began in 1977. Each generation has provided more accurate monitoring information and flexibility in controlling the unit.

  • Page 5: Diagnostics And Service Features

    For DX units, single circuit, 2 optional alarms can be selected For DX units, dual circuits, 1 optional alarm can be selected * This optional feature or data display may require additional components and/or sensors 5 • Mini dap4 User Manual...

  • Page 6: Historical Data Displayed

    REVERSE ACTING WATER VALVE SCHEDULED NORMAL MAINTENANCE COOLING STAGE to STAGE BAND NETWORK PROTOCOL* ANALOG OUTPUT for MOD CW CALIBRATE DISCHARGE AIR SENSOR* ANALOG OUTPUT for MOD HUMID CALIBRATE CHILLED WATER TEMPERATURE SENSOR* WATER VALVE MODE 6 • Mini dap4 User Manual...

  • Page 7: Getting Started

    (units may be ordered with longer cables for optional remote wall mounting). Note: Factory cable is required. This is a custom made cable and must be ordered from Data Aire. A regular tele- phone cable will not operate.

  • Page 8: Powering The Unit On/Off

    The FACTORY LEVEL password allows changes to the SERVICE LEVEL Menus plus the following Menus: J. Factory Settings L. Configure Inputs/Outputs The ZONE MASTER is an optional feature and requires a factory provided activation code. Contact factory if ZONE MASTER control is required. 8 • Mini dap4 User Manual...

  • Page 9: Changing The Service Level Password

    Service Password will be available. Use the UP or DOWN keys to scroll through the available Menus. Note: Factory Level Menus are for configuring the unit. The Mini dap4 controller is used for a variety of equipment types. The controller is based on the unit type, unit components and options. Under normal circumstances these menus should not be changed.

  • Page 10: Menu Settings

    Use the UP or DOWN key to scroll through the screens. Menu B has two screens. The following will appear on the first Menu B screen (values are for reference only): Setpoints Temp Setpoint: 72.0 Temp Deadband: Stage-To-STAGE: 10 • Mini dap4 User Manual...

  • Page 11: Menu C - Clock/Scheduler

    Menu C should only be used for non-critical applications where units may be cycled off without any damage to sensitive electronic equipment. The typical application is comfort cooling where units may be shut down during non-working hours. 11 • Mini dap4 User Manual...
  • Page 12 UP or DOWN key. Once all changes are made to inputs on screen, move the cursor to the top and press the UP or DOWN keys to move to the next screen or press the MENU key to return to Main Menu screen. 12 • Mini dap4 User Manual...
  • Page 13 Once the settings are complete, with the cursor in the title block, press the DOWN key to advance to the next screen or press ESC to return to the Main Menu or press the ESC key to return to normal operation. 13 • Mini dap4 User Manual...
  • Page 14 Once the settings are complete, with the cursor in the title block, press the DOWN key to advance to the next screen or press ESC to return to the Main Menu or press the ESC key to return to normal operation. 14 • Mini dap4 User Manual...

  • Page 15: Menu D - Input/Output

    ▼ Press the DOWN key to view the next screen. The following will be displayed (values are for reference only): Analog Input Humidity Input B02: 44.2 ▼ Press the DOWN key to view the next screen. 15 • Mini dap4 User Manual...
  • Page 16 Chilled Water Valve Output 8.50vdc ▼ Press the MENU key to return to the Main Menu. Choose another Menu by pressing the UP or DOWN keys or press ESC to return the normal operating mode. 16 • Mini dap4 User Manual...

  • Page 17: Menu E - Historical Data

    ▼ Press the ENTER key to move the cursor. The cursor will flash the reset choice of NO or YES. To reset and clear runtimes, press the UP or DOWN key. ▼ Press the ENTER key until the cursor is flashing on the title line. Press the DOWN key to move to next screen. 17 • Mini dap4 User Manual...
  • Page 18 With the cursor flashing on the title line, press the UP or DOWN key to review the alarms or runtimes or press the MENU key to return to the Main Menu. ▼ Press the ESC key to return to the normal operating screen. 18 • Mini dap4 User Manual...

  • Page 19: Menu F - Information

    512KB User save writes: T memory writes: 2824 Main cycle: 5.2 cycle/s 192ms ▼ Press the MENU key to return to the main menu or press ESC to return to the normal operating mode. 19 • Mini dap4 User Manual...

  • Page 20: Menu G - Network Config

    Once the selection has been made, press the ENTER key to move the cursor to the title block. ▼ Press the ESC key to return to the Main Menu. Scroll to the next menu to be viewed or press the ESC key again to return to the normal operating mode. 20 • Mini dap4 User Manual...

  • Page 21: Menu H - Calibrate Sensors

    MENU H allows calibration of the unit installed sensors (the Service Level password is required for entry) Return air temperature and humidity sensors are standard with Data Aire units. Dependent on options and equipment type, a discharge air and chilled water sensor may be installed in the unit.
  • Page 22 Use the UP or DOWN keys to scroll through the Menus or press the ESC key to return to the normal operating mode screen. Note: Discharge and chilled water sensors are optional and must be installed to see screens. 22 • Mini dap4 User Manual...

  • Page 23: Menu I - Manual Control

    Manual Output Mgmt. 2 Alarm Auto Off Cond Aux Rly Auto Off Move the cursor to the title block by pressing the ENTER key. To return to the Main Menu or press the ESC key. 23 • Mini dap4 User Manual...

  • Page 24: Menu J - Factory Settings

    MENU J is for setting the control to the type equipment and options ordered. This requires the Factory Level pass- word and entry should be limited to Data Aire factory and service personnel. In the Main Menu screen press the UP or DOWN key until “J - Factory Settings” appears and is highlighted. Press the ENTER key.
  • Page 25 The screen information will vary with each water valve selection. The screen displays for each choice follows (values are for reference only): Chill Wtr Cool Water Valve Settings Wtr Vlv: Chill Wtr Cool Wtr Vlv Voltage: 2-10* Wtr Vlv Action: Direct* Engy Lockout Time: 15m* 25 • Mini dap4 User Manual...
  • Page 26 ▼ Press the DOWN key to view the next screen. The following will be displayed (values are for reference only): Humidity Settings Control: Rel. Hum Humidify: Compu Non-Mod Dsat Cyc: Not Used Hum Anticipation: Dehum Mode: None 26 • Mini dap4 User Manual...
  • Page 27 Power down the unit using the unit mounted electrical disconnect or the (field provided) wall mounted disconnect. Once the self-test is complete, the display module will display that the unit is “OFFbyKEY” Start (power-up) the unit following the instructions on page 7, Powering the Unit ON/OFF. 27 • Mini dap4 User Manual...

  • Page 28: Menu K - Alarms And Limits

    Note: If hours are selected and not cleared after maintenance, an alarm will sound. Once a selection or selections have been made, move the cursor to the title block (Alarm Settings) by pressing the ENTER key ▼ Press the DOWN key to view the next screen. 28 • Mini dap4 User Manual...
  • Page 29 ▼ Press the DOWN key to view the next screen: The following will be displayed (values are for reference only): Flow Alarm No Water Flow Action: Alarm Only Wtr Flow Alm Dly: Air Flow Alm Dly: 29 • Mini dap4 User Manual...
  • Page 30 Note: Choosing NO as the setting, the High Temperature alarm will be disabled. Press the ENTER key to advance to Set Point. The cursor will flash over the current setting. Press the UP or DOWN key to change the setting. 30 • Mini dap4 User Manual...
  • Page 31 Note: Choosing NO as the setting, the Lo Humidity alarm will be disabled. Press the ENTER key to advance to Set Point. The cursor will flash over the current setting. Press the UP or DOWN key to change the setting. 31 • Mini dap4 User Manual...
  • Page 32 C2 High Pressure Note: Alarm messages are typically factory programmed dependent on the type of equipment and the options ordered. When making or considering changes consult with either Data Aire engineering or service. Many of the options require additional sensors or devices.
  • Page 33 Once a selection or selections have been made, move the cursor to the title block by pressing the ENTER key Alm Output Function 3 Hi Humidity Low Humidity Humidifier Disch Air Low Temp Ret Air Low Temp Ret Air Hi Temp Override 33 • Mini dap4 User Manual...
  • Page 34 Alm Output Function 6 Humidity Cylinder Custom Message 1 Custom Message 2 Custom Message 3 ▼ Press the DOWN key to view the next screen:. The following will be displayed (values are for reference only): 34 • Mini dap4 User Manual...

  • Page 35: Menu L - Configure I/O

    Menu L is a factory for configuring the unit’s digital inputs and the unit’s analog inputs and outputs. This requires the Factory Level password and entry should be limited to Data Aire factory and service personnel. ▼ Press the UP or DOWN key until “L. Configure I/O” appears and is highlighted. Press the ENTER key.
  • Page 36 ▼ Press the DOWN key to view the next screen. Once a selection or selections have been made, move the cursor to the title block by pressing the ENTER key ▼ Press the DOWN key to view the next screen. 36 • Mini dap4 User Manual...
  • Page 37 ▼ Press the DOWN key to view the next screen. The following will be displayed (values are for reference only): Analog Input Return Air Temp Sensor Enable: ON Channel: B1 High Res. Offset: Value: 74.1 37 • Mini dap4 User Manual...
  • Page 38 With Enable ON, High Res., Offset and Value will be displayed and values changed. Once a selection or selections have been made, move the cursor to the title block by pressing the ENTER key. 38 • Mini dap4 User Manual...
  • Page 39 To Exit Menu L – Configure I/O, with the cursor in the title block, press the Menu key. The screen will display the Menus. ▼ Press the ESC key to return to the normal operating mode. 39 • Mini dap4 User Manual...

  • Page 40: Alarms/Clearing Alarms

    Up to 100 alarms may be stored. 13.1 Acknowledging an Alarm To acknowledge the alarm condition, press the alarm symbol. The display screen will have the following message: Indicates High Return Air Temperature ***ALARM *** Flashing High Return Air Temperature 40 • Mini dap4 User Manual...
  • Page 41 0000 No Comp 2: 0000 No Reheat: 0000 No Humidify: 0000 No Dehum: 0000 No Run Hours 2 Reset Engy Svr: 0000 No CW Cool: 0000 No Cond Aux: 0000 No Reset All Runtimes: 41 • Mini dap4 User Manual...
  • Page 42 DOWN key to change the message to Yes. ▼ Press the ENTER key. The history is now removed. ▼ Press the ENTER key to return cursor to title block. ▼ Press the ENTER key to return to Main Menu screen. 42 • Mini dap4 User Manual...

  • Page 43: 14.0 Mini Dap4 Control Logic

    Valve OFF when Current Temperature = Setpoint (Optional Modulating CW Valve) Chilled water valve “opening” sequence (Increasing Temperature) 1. The chilled water valve proportionally opens 10% for each 0.1°F above the temperature setpoint plus temperature deadband. 43 • Mini dap4 User Manual...
  • Page 44 Auxiliary Chilled Water Cooling will be inhibited for the amount of time set in Menu J, “Energy Saver Lockout Time” and DX (Direct Expansion) cooling will take over. After the amount of time set in Menu J, “Energy Saver Lockout Time”, it will try Energy Saver/Auxiliary Chilled Water Cooling again. 44 • Mini dap4 User Manual...
  • Page 45 The above reheat staging is for the standard single stage electric reheat. Other types of reheat are available (hot water and hot gas). They are single stage. Single stage operates in the following manner: Reheat is ON at Temperature Setpoint – Temperature Deadband Reheat is OFF at Temperature Setpoint 45 • Mini dap4 User Manual...
  • Page 46 Cool 1 OFF at Humidity Setpoint 8. The sequence for dehumidification with Energy Saver or Auxiliary Chilled Water Cooling is as follows: Valve is OPENED to 100% at Humidity Setpoint + Humidity Deadband Valve is CLOSED at Humidity Setpoint 46 • Mini dap4 User Manual...
  • Page 47 Open 70% if return dewpoint = high_dewpoint_setpoint – 0.3°F Open 80% if return dewpoint = high_dewpoint_setpoint – 0.2°F Open 90% if return dewpoint = high_dewpoint_setpoint – 0.1°F Open 100% if return dewpoint = high_dewpoint_setpoint 47 • Mini dap4 User Manual...
  • Page 48 If Low dewpoint setpoint is set too high , the humidifier might run pass the relative humidity setpoint. When this happens, the humidifier will be inhibited and a warning will display on dap4 LCD screen. 48 • Mini dap4 User Manual...
  • Page 49 5. The compressor short-cycle time delay will be increased from five (5) to six (6) minutes for the next hour. 6. The short-cycle alarm will not clear until a one (1) hour period has passed with less than ten (10) compressor starts. 49 • Mini dap4 User Manual...
  • Page 50 REHEAT INHIBITED ALARM 1. The reheat inhibited alarm is optional and requires an input contact from a field supplied alternate power source or contacts. 2. The alarm is programmable (See Menu K – Alarms and Limits). 50 • Mini dap4 User Manual...
  • Page 51 “High Return Air Temperature” message is displayed on the display module. 3. The audio alarm is a warning only and will not prevent any of the unit functions from operating. 4. The alarm will remain until the alarm condition is corrected. 51 • Mini dap4 User Manual...
  • Page 52 1. The person to contact on alarm is programmable (See Menu K – Alarms and Limits). It can also be disabled. 2. The audio alarm is a warning only and will not prevent any of the unit functions from operating. 3. The alarm will remain until the alarm condition is corrected. 52 • Mini dap4 User Manual...
  • Page 53 NO WATER FLOW ALARM ACTION – DX COOLING UNITS 1. The Mini dap4 controller will only detect the no water flow alarm when the unit calls for cooling. 2. Each time the cooling stage starts, the no water flow alarm detection will be displayed for the amount of time that is set in Menu K - Alarms and Limits.

  • Page 54: Temperature Sensor Chart

    105.0 0.85 32.0 27.23 123.8 51.0 4.02 222.8 106.0 0.83 125.6 52.0 3.90 224.6 107.0 0.81 127.4 53.0 3.77 226.4 108.0 0.79 129.2 54.0 3.65 228.2 109.0 0.77 131.0 55.0 3.53 230.0 110.0 0.75 54 • Mini dap4 User Manual...
  • Page 55 Night time temperature and humidity offsets which are explained in this document. Two additional sensors can be installed. sensor: Carel (DPWL417000) 4-20mA. With a 24VDC power supply. Light sensor: 24VAC EM photocell sensor (EM-24A2) Mini-Dap4 I/O connections 55 • Mini dap4 User Manual...
  • Page 56 The Mini-dap4 is set to the gPod model at the factory and “gPOD” will appear on the main screen of Mini-dap4. Please contact the Data Aire if your Mini-dap4 controller is not set to the gPod model as required.
  • Page 57 25ppm, Min Valve on is 10 seconds and the Valve PWM is 20%. When the level falls below 1000ppm, the CO solenoid will cycle on for 2 seconds then off for 8 seconds until the CO level rises above 1025ppm. 57 • Mini dap4 User Manual...
  • Page 58 Night time offsets are adjusted in menu C “Clock/Scheduler”. control can be disabled during the nighttime by setting “Night CO cntrl” to “No” (default setting) in Menu J “Factory settings”. CO control will resume during daytime mode. 58 • Mini dap4 User Manual...
  • Page 59 Notes ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ 59 • Mini dap4 User Manual...

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