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Micro Air Corporation FX-1 Operation Manual

Air handler control
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Summary of Contents for Micro Air Corporation FX-1

  • Page 2: Table Of Contents

    When the Alternate Air Sensor is required the Outside Air Sensor is not available. Copyright © 1997 Micro Air Corporation, All Rights Reserved No part of this publication may be reproduced, translated, stored in a retrieval system, or transmitted on any form or by means electronic, mechanical, photocopying, recording or otherwise without prior written consent by Micro Air Corporation.

  • Page 3: Introduction

    Control. Read This Manual Completely Before Proceeding ! If you require assistance prior to or during the installation of the FX-1 Air Handler Control call Micro Air at 609-259-2636 or Fax your questions to Micro Air at 609-259-6601. The FX-1 Air Handler Control is covered under existing Micro Air Corp. Warranty Policy.

  • Page 4: Basic Operation

    FX-1 Air Handler Control Operations Manual ASIC PERATION POWER BUTTON Press the power button once to toggle the unit to the on mode. Press the power button again to toggle the unit to the off mode. UP BUTTON Momentarily press and the set point will appear in the temperature display.

  • Page 5: System Overview

    While in a Heating or Cooling Mode the controller will maintain a two degrees Fahrenheit (2 °F) temperature variation. A four degree swing is required to cause the unit to shift to the opposite mode. Once in a new mode, Heating or Cooling, FX-1 Air Handler Control will maintain a two degree differential.

  • Page 6: Operator Controls And Display Panel

    4. SELECT BUTTON The select button is used to select one of the four operating modes. Press and release the select button and the FX-1 Air Handler Control will advance to the next mode. Continue to press and release the select button until the desired operating mode is reached. The mode selected is indicated by the Mode LED, i.e., Cool, Heat, Automatic or Away Mode.

  • Page 7: Dual Button Functions

    FX-1 Air Handler Control Operations Manual PERATOR ONTROLS AND ISPLAY ANEL 5. COOL MODE LED The cool mode LED will be lit when the Cooling Mode has been selected. HEAT MODE LED The heat mode LED will be lit when the Heat Mode has been selected.

  • Page 8: Modes Of Operation

    PERATION Off Mode When the FX-1 Air Handler Control is in the off mode, all control outputs are turned off. Program parameters and user settings are saved in nonvolatile memory. The program mode can only be accessed from the off mode. The Ready LED remains lit in the off mode.

  • Page 9: Fan Modes

    FX-1 Air Handler Control has six automatic fan speeds available. Speed six is high, three is medium and one is low or the slowest speed. Automatic fan mode allows the FX-1 Air Handler Control to determine the required fan speed based on room temperature. The closer the room temperature is to the set point, the slower the fan will run.

  • Page 10: Entering The Program Mode

    Exiting the Program Mode There are two methods to exit the program mode. Press the power button and the FX-1 Air Handler Control will return to the off mode. Not pressing any buttons or attempting any program changes for sixty (60) seconds will allow the control to exit the program mode to the off mode.

  • Page 11: Default Program Table

    FX-1 Air Handler Control Operations Manual Programmable Parameters There are nineteen (19) programmable parameter locations with their Factory Default Settings listed in this section. The table below indicates what these parameters are, along with the permitted values and the original Factory Default Settings.

  • Page 12: Programming

    FX-1 Air Handler Control Operations Manual ROGRAMMING P-1: Fan Speed Automatic or Manual The program values allowed are A, followed by one (1) through six (6). Select "A" (factory default setting) for automatic fan speeds and the fan will operate in conjunction with room temperature.
  • Page 13 Off Mode by simultaneously pressing the Up and Down Buttons. The outside air temperature will appear in the display while both the Up and Down Buttons are depressed. Note: The OAT can only be viewed while FX-1 Air Handler Control is in the Off Mode.

  • Page 14: Hrough

    FX-1 Air Handler Control Operations Manual P-16: Fan Motor Selection There are two basic fan motor types, shaded pole and split capacitor. Each motor reacts differently to speed control and each motor requires different timing for optimum fan speed variation. The default setting is "SC"...

  • Page 15: Ambient Air To Water Temperature Differential Chart

    FX-1 Air Handler Control Operations Manual When equipped with an optional electric heater, the heater will overlap with the hydronic heat by twenty-two degrees Fahrenheit ( 22 ° F). The heater will turn on when heat is required and remain on until the hydronic water temperature exceeds the ambient by twenty-two degrees Fahrenheit or until the room temperature is satisfied.

  • Page 16: Specifications

    FX-1 Air Handler Control Operations Manual PECIFICATIONS .................... 55 ° F 85 ° F OINT PERATING ANGE ............. 55 ° F 85 ° F MBIENT EMPERATURE PERATING ANGE ISPLAYED ......................± 2 ° F 77 ° F ENSOR CCURACY ................... 75 VAC...

  • Page 17: Wiring Diagram

    FX-1 Air Handler Control Operations Manual Revision: 04 04/09/09 Page 15...

  • Page 18: Installation Overview

    FX-1 Air Handler Control Operations Manual NSTALLATION VERVIEW Revision: 04 04/09/09 Page 16...

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