Reznor FX05 Application And Instructions
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Reznor FX05 Application And Instructions

Reznor FX05 Application And Instructions

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NOTICE:
The information contained on the following page(s) was produced
prior to May 1, 2014. On that date Reznor became part of
Nortek, Inc.
References to any other company affiliations are no longer valid.
©2014 Reznor, LLC. All Rights Reserved.
Trademark notice: Reznor is registered in at least the United States.
0514 PDF Form Cover1

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Summary of Contents for Reznor FX05

  • Page 1 NOTICE: The information contained on the following page(s) was produced prior to May 1, 2014. On that date Reznor became part of Nortek, Inc. References to any other company affiliations are no longer valid. ©2014 Reznor, LLC. All Rights Reserved.

  • Page 2: Table Of Contents

    FX05 Commissioning Parameters Level . . . . . . . . . . . . . . . . . .

  • Page 3: General Sequence Of Operation

    And RHE = Enable Space Humidistat Switch dHL = 70°F Space Humidistat Closed; High and Low Switch Closed Ambient Lockout Heat or Cool Neutral Air Dehumidification Discharge Air Setpoint Not Allowed dHL, dCH = 70°F Form CP-MAPS-D12 with FX05, Page 2...

  • Page 4: Display

    “tst”) . Unit will operate each output for one minute . Pushing the up arrow key for 5 seconds allows manual selection and testing of outputs . To exit test mode, push the down arrow key for 3 seconds . Form CP-MAPS-D12 with FX05, P/N 209341 Rev 4, Page 3...

  • Page 5: Installation Warnings And Notes

    IMPORTANT INSTALLATION NOTES 1) All Installations - The FX05 control is DC voltage. DC voltage wires must not be run in the same conduit as the 24V or line voltage wiring. Use of shielded cable wire is recommended for DC voltage.

  • Page 6: Heating And Cooling Control Modes

    Occupied Mode Blower operation is continuous in occupied mode. The FX05 contact BO-1 will close providing power for the outside air damper to open. The 2-position damper is electrically interlocked with the blower circuit. When the damper actuator opens to 80%, the blower is allowed to run. If power is lost, the mechanical spring will drive the damper closed.

  • Page 7: Heating Mode

    Example: Elder care centers tend to require higher space temperatures during the winter season Form CP-MAPS-D12 with FX05, Page 6...
  • Page 8 If the discharge air temperature rises above ½ HPP value above the setpoint (70ºF 5ºF = 75ºF) after initially starting, the 1st stage will remain ON for 180 seconds then turn OFF. Form CP-MAPS-D12 with FX05, P/N 209341 Rev 4, Page 7...

  • Page 9: Cooling Mode

    1.8ºF. Example: Space cooling setpoint SSP = 75°F (Default) Space cooling proportional band (SCP) = 1.8ºF (adjustable 1 to 8ºF) Space cooling active above: (SSP + SCP) = 75ºF + 1.8ºF = 76.8ºF Form CP-MAPS-D12 with FX05, Page 8...
  • Page 10 The value of the outside air temperature corresponding to the (-40 - 65ºF) dCH warmest cooling setpoint value. Making the dCL value higher than the dCH value disables this Disable Disabled functionality. Form CP-MAPS-D12 with FX05, P/N 209341 Rev 4, Page 9...
  • Page 11 EN1 settings.  Stage 2 compressor is locked out when the outdoor air enthalpy is below EN2 setting.  Stage 3 compressors are locked out when the outdoor air enthalpy is below EN3 settings. Form CP-MAPS-D12 with FX05, Page 10...
  • Page 12 FIGURE 6 - Optional humidity transmitter measures outdoor air humidity and controls compressor operation based on enthalpy settings EN1, EN2, EN3 Form CP-MAPS-D12 with FX05, P/N 209341 Rev 4, Page 11...

  • Page 13: Dehumidification (Reheat)

    = 115; High ambient reheat override is set where reheat is not disabled. rCP = 55; if the space temperature exceeds the cooling setpoint, reheat is disabled and discharge air is supplied at 55°F. Form CP-MAPS-D12 with FX05, Page 12...

  • Page 14: Unit Status Level

    DAH – Duct Air Control – No Call for Heating from space Active Room Heating Setpoint (Press Enter to view setpoint) Active Room Cooling Setpoint (Press Enter to view setpoint) Form CP-MAPS-D12 with FX05, P/N 209341 Rev 4, Page 13...

  • Page 15: Fx05 Commissioning Parameters Level

    0°F 0° - 30°F the neutral air cooling setpoint value will increase by rSP amount. This value should not be used unless the neutral air discharge air temperature setpoint (dCH) is lower than 65°F. Form CP-MAPS-D12 with FX05, Page 14...
  • Page 16 Provides an enthalpy differential to the En1 setting (add this differential to the En1 value). If outdoor enthalpy is below this value, the 2nd or 3rd stage cooling control is not allowed. (continued) Form CP-MAPS-D12 with FX05, P/N 209341 Rev 4, Page 15...
  • Page 17 - Outdoor Reset Dry Bulb Heating – High Setting 60ºF 20 - 70ºF The value of the outside air temperature corresponding to the dHL low heating setpoint value. Form CP-MAPS-D12 with FX05, Page 16...

  • Page 18: Time Clock (Option Bhb1 Required.)

    Current Status (Option BHB1 required .) To view the current time clock status on the FX05, hold the “Enter” and “Func- tion” key for 5 seconds. The initial display text will appear as “Uni” or Units of measure. The time clock variables are only valid if a time clock card (Option BHB1) is installed in the controller.
  • Page 19 (cont’d) tion. If the blowers status does not show blower operation within 180 seconds, the unit shuts down. The unit must be restarted by cycling power to the FX05 controller or opening/closing the “Unit ON/OFF” switch (point BI-3). During normal operation after initial blower startup, if the blower status input shows open for more than three seconds, the unit will shut down cooling and heating equipment.

  • Page 20: Auto Test Mode

    During unoccupied mode, a rise in room RH will enable the dehumidification and reheat circuit. If there is no call for space cooling, only the reheat pump is enabled (cooling compressors are locked out). Form CP-MAPS-D12 with FX05, P/N 209341 Rev 4, Page 19...

  • Page 21: Discharge/Duct Sensor

    Avoid this application. If this application is not avoidable, provide air mixing devices or the necessary duct length before the “T” for mixing of the discharge air. Form CP-MAPS-D12 with FX05, Page 20...
  • Page 22 Meters line voltage power to the unit, • If the FX05 wires are to be run in the same field-supplied conduit as the 24 VAC control wiring, the FX05 wiring must be completed using shielded cable and bundled separately from 24 VAC control wiring. The NOTE: Wire supplied with shield must be drained at the unit and taped on the opposite end.

  • Page 23: Outside Air Sensors

    • If the FX05 wires are to be run in the same conduit as the 24VAC control wiring, the FX05 wiring must be completed using shielded cable and bundled separately from 24VAC control wiring. The shield must be drained at the unit and taped on the opposite end.

  • Page 24: Physical Point List

    Physical Point When the FX05 controller is “on” and operational, the FX05 controller will oper- ate the Reznor MAPS air handling equipment based upon the following physi- List cal points list and D12 control sequence. Controller Physical Points List Point Description...

  • Page 25: Bas Card Options

    BAS Card Options Lon Card, Option BHB3 The LON Serial Card is a plug-in card that allows the FX05 control to be con- FIGURE 11 - LON nected to a LON network. The connection to the network is made by means Card for FX05 of the 3 pins on the plug-in connector.

  • Page 26: Network Points List

    Room Rh is not available as a BAS point. For return air applications (with return air dampers), there is no BAS output to override motorized damper operation during unoccupied mode. Form CP-MAPS-D12 with FX05, P/N 209341 Rev 4, Page 25...

  • Page 27: Worksheet For Adjustable Parameters

    0 to 15 minutes 50 to 115°F (discharge duct control without wall dCH - STD DISCHARGE COOLING SETPOINT 70°F sensor or reheat, adjust setting to 55°F)) dHL - STD DISCHARGE HEATING SETPOINT 40 to 120°F 70°F (continued) Form CP-MAPS-D12 with FX05, Page 26...
  • Page 28 H4 - Event Schedule 4 - Hour 0 to 23 hours t4 - Event Schedule 4 - Minutes 0 to 59 minutes UOt - Unoccupied Override Mode 0 to 800 minutes NOTES: Form CP-MAPS-D12 with FX05, P/N 209341 Rev 4, Page 27...

  • Page 29: Index

    Low Voltage Lockout 18 WORKSHEET 26 www .RezSpec .com (800) 695-1901 ©2007 Thomas and Betts, All rights reserved. Trademark Note: Reznor is registered in the United States and other countries. ® Form CP-MAPS-D12 with FX05, Page 28 9/07 Form CP-MAPS-D12 (Version A.1)

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