Table of contents warning, Caution – American Standard 300A User Manual

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TABLE OF CONTENTS

WARNING

120 volts may cause injury from electrical shock.

Disconnect power and shut off water supply before servicing.

CAUTION

Sudden operation may cause personal injury or

property damage. Turn humidistat or Humidifier Control to “OFF” or
lowest setting before servicing

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Operating Instructions

• Automatic Humidifier Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
• Manual Humidifier Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Effect of Water Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Annual Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Annual Summer Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Periodic Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

MAINTENANCE INSTRUCTIONS

Models *HUMD200A, *HUMD300A . . . . . . . . . . . . . . . . . . . . . . . . . .9
Models *HUMD500A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Replacement Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

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