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Steam Humidifier
Model 800 Residential Steam Humidifier
Owner's Manual
Includes Safety & Operating Instructions
and Warranty Information
READ AND SAVE THESE INSTRUCTIONS

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Table of Contents
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Summary of Contents for Aprilaire 800

  • Page 1 Steam Humidifier Model 800 Residential Steam Humidifier Owner’s Manual Includes Safety & Operating Instructions and Warranty Information READ AND SAVE THESE INSTRUCTIONS...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS Safety Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Introduction .
  • Page 3: Introduction

    Use the dealer locator on our web site (www.aprilaire.com) or look in the yellow pages under Humidifying Apparatus or Heating & Air Conditioning Contractors.
  • Page 4: Operating Modes

    OpERATING MODES When the humidifier is powered and turned on, the “On/Off” light is illuminated green . Any time the fill valve is activated, the “Fill” light illuminates green. Any time the drain valve is activated, the “Drain” light illuminates green. During initial start up with a new canister, the humidifier may run through a series of fill/drain cycles until the conductivity of the water is in a range that allows normal operation.
  • Page 5: Operating Instructions - Digital Humidifier Control

    TABLE 1 – Display panel (continued) Icon Function Drain valve indicator. Solid green to indicate start of drain cycle . Drain cycle occurs: 1) To maintain nominal steam output during normal operation . 2) During end of season shut down. (End of season shut down occurs after 72 hours of inactivity.) 3) If humidifier has operated for 168 hours without a drain cycle .
  • Page 6: Automatic Mode

    AUTOMATIC MODE FIGURE 2 – Automatic Mode Your Aprilaire Humidifier Control is installed in the cold air return duct. During the first heating season, your Humidifier Control needs to be set initially to match your home’s condition. Please follow these steps when adjusting your control (refer to Figure 2).
  • Page 7: Check The Humidifier Operation

    TEST/RESET The Test/Reset feature allows the humidifier operation to be checked even if there is no call for humidity. See “Check the Humidifier Operation” on page 13 . ADDITIONAL INFORMATION – AUTOMATIC MODE Your humidifier is a precision system that will accurately maintain the humidity in your home.
  • Page 8: Additional Information

    On occasion, indoor moisture producing activities such as clothes drying, cooking, showers, etc., may raise the humidity level higher than it should be, even though the Aprilaire humidifier is not operating. Telltale indications are condensation or frost on cold surfaces such as windows, doors, walls, etc. If such condensation persists for several hours, your home should be ventilated to dissipate the potentially damaging excess moisture.
  • Page 9: Limited Warranty

    . wARRANTy REGISTRATION Visit us on-line at www.aprilaire.com to register your Aprilaire product. If you do not have on-line access, please mail a postcard with your name, address, phone number, model number of product purchased and date of installation to: Research Products Corporation, P.O.

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