04 - JCI - FlexSys Controller FlexFloor3 - Data Sheet - JCI_FlexFloor3_DS.pdf

FlexSys™ Controller FlexFloor3Model:

©2014 Johnson Controls | The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.

© 2014 AirFixture, LLC

Data Sheet Date Revised: 03.07.2014

Description:

FlexFloor3 (FlexSys™ Controller) manages the air pressure and monitors the temperature of the underfloor plenum used in underfloor air distribution systems.

Preassembled into an MIT sized box with prewired sensors and a Carel pCO controller, the FlexFloor3 drops into the raised floor in place of a diffuser. The FlexFloor3 includes a diffuser grille that is customized to match the type/size/ color of other cooling diffusers installed on the project (please specify on order – see FIGURE 1 for examples).

The FlexFloor3 controller manages the plenum air pressure by controlling the VFD fan speed or the damper between the supply air duct and the underfloor plenum.

Operation can be as a standalone device or as part of a Building Automation System (BAS) using BACnet.

The FlexFloor3 includes four sensors, which monitor:

underfloor air pressure, underfloor air temperature, slab temperature, and underfloor relative humidity. With the information provided by these sensors, the FlexFloor3 controller modulates air flow to maintain underfloor pressure and monitors underfloor conditions.

The FlexFloor3 comes preset with a default pressure setpoint of .05 in. w.c. (12.5 Pa), so no programming is required. If desired, the setpoints can be easily modified using the builtin display and keypad. Access to the controller is through the floor grill. Raise the grill and the builtin display is visible. The display provides information on the operating and communication status of the controller. The display defaults to blank, remaining hidden and unobtrusive when not in use.

FeATURES:

• Preprogrammed application simplifies commissioning process

• Outputs from the FlexFloor3 controller can provide input to the AHU

• Communicates to other network devices using BACnet MS/TP or BACnet IP

FIGURE 1

©2014 Johnson Controls | The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.

© 2014 AirFixture, LLC

Data Sheet Date Revised: 03.07.2014

SEQUENCE:

The pressure in the underfloor plenum is maintained at a setpoint, typically 0.05 in. w.c. (12.5 Pa) by modulating either a damper or variable speed fan between the supply duct and underfloor plenum. This ensures consistent flow into the plenum when the cooling diffusers are open. The FlexFloor3 controller uses a PID loop to control the damper position or fan speed based on setpoint and pressure sensor input. Care should be taken to locate and orient the high reference pressure sensor on the FlexFloor3 away from velocity pressure.

APPLICATION CONFIGURATION:

The FlexFloor3 is shipped with the application loaded and in a Plug & Play condition, ready to be installed with only the slab temperature sensor, power, and network requiring connection. For specific applications the controller can be easily configured using the builtin display and keypad or through network parameters.

Specifications:

OPERAtion:

SENSORS & INPUTS

The FlexFloor3 uses four sensors to monitor the air condition in the underfloor plenum. The underfloor air temperature, % relative humidity, and pressure sensors are factory-installed within the FlexFloor3 unit. The slab temperature sensor attaches to the FlexFloor3 using a Molex connector to simplify installation.

OUTPUTS

The output device (underfloor plenum damper or AHU fan) connect to the FlexFloor3 using modular Plug & Play cables.

COMMUNICATION

The FlexFloor3 can pass information (calculated or input by its sensors) to the BAS via the bacnet network using BACnet IP or BACnet MSTP (please specify on order).

©2014 Johnson Controls | The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.

© 2014 AirFixture, LLC

Data Sheet Date Revised: 03.07.2014

Panel Display Normal:

- Blank

- Current Pressure Reading

- “SP” - Setpoint (default 50 = 0.05 iwg)

- “Out” - Control Output

- “Pt” - Plenum Temperature

- “St” - Slab Temperature

- “rH” - Relative Humidity

- “dP” - Dew Point

- “Alr” - Dew Point Alarm

Panel Setup Mode (Push and hold both up and down for 5 seconds):

- “C-F” - Temperature units C/F (default F)

- “d-r” - Direct or Reverse Acting (default Direct)

- “StP” - Start Point - Low Voltage Cutoff (default 1.5V)

- “Lo” - Minimum V out (default 0.0V)

- “Hi” - Maximum V out (default 10.0V)

- “Pb” - Ctrl Loop Proportional Value (default 80 = 800)

- “It” - Ctrl Loop Integration Value (default 5)

- “Dt” - Ctrl Loop Derivative Value (default 0)

- “Db” - Deadband (default 2 = .002 iwg)

- “Of1” - Calibration Offset for Pressure Sensor

- “Of2” - Calibration Offset for Humidity Sensor

- “Of3” - Calibration Offset for Plenum Temperature Sensor

- “Of4” - Calibration Offset for Slab Temperature Sensor

- “Sr” - Software Revision

FlexFloor3 USER MENU:

©2014 Johnson Controls | The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.

© 2014 AirFixture, LLC

Data Sheet Date Revised: 03.07.2014

Table 1: Job Specific Settings

Table 2: Status Outputs

Table 3: Tuning Parameters

Param Description Default Min Max Addr Type Pressure Setpoint Pressure Setpoint (iwg) x 1000; e.g. 50 = 0.05iwg 50 0 250 r/w 41 Integer

Direct/Reverse Acting Set Output as 0-to-10 or 10-to-0 1 (Direct) 0 1 r/w 1 Boolean

Output Start Voltage Initial turn-on Voltage 1.5 0 10 r/w 6 Analog

Output Min Voltage Minimum Output Voltage 0 0 10 r/w 7 Analog

Output Max Voltage Maximum Output Voltage 10 0 10 r/w 8 Analog

Param Description Default Min Max Addr Type Output Level Output 0 to 100% - 0% 100% r 10 Analog

Pressure Reading Pressure (iwg) x 1000; e.g. 50.0 = 0.05iwg - 0 250 r 11 Analog

Plenum Temperature Plenum Temperature (degree F) - 50 90 r 12 Analog

Slab Temperature Slab Temperature (degree F) - 50 90 r 13 Analog

Relative Humidity Relative Humidity (%) - 0% 100% r 14 Analog

Plenum Dew Point Plenum Dew Point (degree F) - r 15 Analog

Analog

Dew Point Alarm Condensation Warning -

2.1 r 16 Boolean

SW Revision SW Revision r 201

Param Description Default Min Max Addr Type Plenum Temp Cal Temperature Offset (degree F) 0 -10 10 r/w 21 Analog

Slab Temp Cal Temperature Offset (degree F) 0 -10 10 r/w 22 Analog

Pressure Cal Pressure Offset (1 = .001iwg) 0 -25 25 r/w 23 Analog

Humidity Cal Humidity Offset 0 -10 10 r/w 24 Analog

PID Loop Proportional PID Proportional Setting /10; e.g. 80 = 800 80 0 999 r/w 42 Integer

PID Loop Integration PID Integration Setting 5 0 999 r/w 43 Integer

PID Loop Derivative PID Derivative Setting 0 0 999 r/w 44 Integer

PID Lood Deadband Deadband (iwg) x 1000; e.g. 2 = 0.002iwg 2 0 999 r/w 45 Integer

FlexFloor3 NETWORK PARAMETERS: