American Standard 300A, 500A, 200A User Manual

READ AND SAVE THESE INSTRUCTIONS

HUMIDIFIERS

OWNER’S MANUAL

For Models *HUMD200A, 300A, 500A

Includes Safety & Operating Instructions

and Warranty Information

* May be "A" or "T"

10006174 B2203330A

5.04 Pub No. 22-5036-01

TABLE OF CONTENTS

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

WARNING

Disconnect power and shut off water supply before servicing.

CAUTION

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

120 volts may cause injury from electrical shock.

Sudden operation may cause personal injury or

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INTRODUCTION

Thank you for your recent purchase of our humidifier. The addition of this product to your heating and cooling system will increase your level of comfort by adding just the right amount of moisture to your indoor environment. During the heating season, your humidifier will not only make you feel more comfortable, but it will help protect your home and your furnishings, as well.

Your new humidifier is easy to use and easy to live with. Simple maintenance is required on a periodic basis to keep it in peak operating condition. This homeowner’s manual will outline these steps for you, as well as other basic operating procedures so you can enjoy the full benefits of your new humidifier.

How Your Humidifier Operates:

During the winter, your comfort relies on two things: the perfect temperature and the perfect amount of moisture. Your new humidifier will provide your home with the recommended indoor relative humidity to ensure your comfort all winter long.

Replacement Humidifier Pads are available from your installing dealer.

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I. YOUR HUMIDIFIER

Your new humidifier has been installed to operate in conjunction with the blower motor in your furnace. When the Humidifier Control calls for humidity and the blower motor is operating, water flows to the distribution tray located at the top of the unit. The water is evenly distributed across the width of the tray and over the Humidifier Pad. Dry, hot air is moved through this moisture laden Humidifier Pad where it is evaporated into a vapor. This now humidified air is circulated throughout your home. Humidified air helps to reduce static electricity, reduces wood furniture from drying out, helps prevent nasal passages from becoming too dry and makes your home more comfortable.

Important Notes About Your Humidifier:

When the humidifier is operating, there will be a small, steady stream of water to drain. Do not use the saddle valve to regulate the water flow. The saddle valve is designed to be either completely open or completely closed.

Although your humidifier incorporates a self-flushing action, the Humidifier Pad will develop mineral build-up on it over time. To assure high

capacity, trouble-free performance it should be replaced annually.

The granular coating on the bottom of the distribution tray is designed to provide an even flow of water over the Humidifier Pad. Do not clean the

mineral scale off the bottom of the distribution tray at the end of the humidification season. The scale actually provides an excellent

track for the water to follow.

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II. OPERATING INSTRUCTIONS

Models HUMD300A and HUMD500A with Automatic Humidifier Control: (Manual Humidifier Control-see pg 4)

Your Automatic Humidifier Control is installed in the cold air return. During the first heating season, your Automatic Humidifier Control needs to be set initially to match your home’s condition. Please follow these steps when adjusting your control (refer to Figure A).

1. Turn the dial setting knob to “5,” which is within the normal range. During the next 24-48 hours it may be necessary to adjust the dial for more or less humidity, depending on your personal comfort and home’s requirements. Refer to the “Operation Guide” (Table 1).

2. During the coldest portion of the first heating season, minor adjustments may be necessary. This is dependent upon your individual home construction, refer to the “Operation Guide” (Table 1).

TABLE 1 – Operation Guide

Condition Solution

Condensation on windows Reduce the setting on the control dial

Lack of humidity Increase the setting on the control dial

Humidifier does not operate Turn dial to “Test.” Make certain furnace

Humidifier won’t shut off Turn dial to “Off.” If unit continues to

Test mode System operation is checked by setting the

by 1 increment.

and blower are operating. If unit still doesn’t operate, consult your air conditioning and heating dealer.

operate, consult your air conditioning and heating dealer.

knob to “Test.” Make certain furnace and blower are operating. Humidifier will operate for one minute.

The relative humidity in your home will now be accurately controlled to meet your needs and should not need further adjustment during future heating seasons. Make note of the dial setting in the event you temporarily move the knob when performing annual maintenance of the Humidifier.

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FIGURE A

Humidity Level

Off

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