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READ AND SAVE THESE INSTRUCTIONS
®
HUMIDIFIERS
®
The Best Cure For Dryness
OWNER’S MANUAL
FOR MODELS 768, 760, 568, 560, 558, 550,
448, 445, 360, 350, 110, 112, 220, 224, & 440
Includes Safety, Operating and Maintenance
Instructions and Warranty
TABLE OF CONTENTS
PAGE
Introduction................................................Inside Front Cover
Principle of Operation ............................................................1
Operating Instructions
•Automatic Humidifier Control.............
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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 Automatic Humidifier Control, to “OFF” or lowest setting before servicing INTRODUCTION ® Thank you for your recent Aprilaire Humidifier purchase. We sincerely appreciate your business and are pleased to add your name to our growing list of customers. With this purchase, you have inve
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® Your Humidifier I. PRINCIPLE OF OPERATION With your purchase of a humidification system, you have invested in a humidifier that operates on the evaporative principle – nature’s own way of adding moisture – and will provide the proper relative humidity all during the heating season. It is very possible that you have questions concerning your new humidifier – questions on what it can do for you, and what you should do to receive maximum benefits from it. This booklet is intended to help you d
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not trapped by the replaceable Water Panel evaporator are flushed down the drain. The drain also eliminates the problems caused by stagnant water. This is the most effective and least expensive method to dispose of trouble-causing minerals. There are some homes where drain facilities are not accessi- ble or available. For these situations, or where high water hardness is not a problem, specially designed Aprilaire Humidifiers, Models 448 and 445, are available, incorporating a water recirculati
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t s e T II. OPERATING INSTRUCTIONS Automatic Humidifier Control: (Manual humidistat-see pg 5) 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 di
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Your Aprilaire Automatic Humidifier, is a high precision system that will accurately maintain the relative humidity in your home. For every 1º change in outdoor temperature, the control will 1 automatically adjust the indoor relative humidity (RH) by ⁄2%. If you would like to determine the RH in your home, follow these steps: 1. Determine the outdoor temperature. 2. Activate the furnace blower by setting your thermostat fan switch to the “On” position, or setting your thermostat to a higher te
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Manual Humidistat: (Automatic Humidifier Control – see pg 3) Your new Aprilaire Humidifier is controlled by a humidistat installed either in the living area or in the cold air return. It is important to anticipate a drop in outdoor temperature and reduce the setting accordingly to avoid excessive condensation. For example, with an outdoor temperature of 20° the correct setting will be 35% relative humidity. If the temperature is expected to fall to 0° that evening, then merely reduce the setting
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To check the humidifier operation, set the humidistat above the click point, make sure that the water saddle valve is open and that there is electricity to the unit. Generally, with all models except the 350 and 360 Aprilaire Humidifiers, the furnace blower motor must be operating for the Aprilaire Humidifier to function. After the humidifier has operated for several minutes and water is entering the unit and coming out at the drain, reduce the humidistat setting below the click point and the
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either case, the Water Panel evaporator is usually changed once a year. In the Models 448 and 445 Aprilaire Humidifiers, these solids will build up on the evaporator surface, in the reservoir and pump section. This is why proper maintenance is important and necessary. Service hot water, 140° maximum, is recom- mended with drain type units for increasing capacity and for heat pump applications. In the drain-equipped models, most of these solids are effec- tively controlled by flushing them down
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VI. PERIODIC PREVENTATIVE MAINTENANCE NOTE: Periodic inspection and preventive maintenance of your total heating system is important for efficient and safe operation. Your heating contractor should include humidifier service at the same time. All models, except No’s. 448 and 445, are equipped with an in-line water strainer and orifice as shown below. These parts should be inspected and cleaned periodically to assure contin- ued proper unit performance. Inspection and Service Instructions 1. D
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MAINTENANCE INSTRUCTIONS for APRILAIRE HUMIDIFIER MODELS 558-550-568-560 CAUTION! Sudden operation may cause personal injury or property damage. Turn humidistat or control to “off” or lowest setting before servicing. 3 5 6 4 1 8 1 1. Front Cover 2. Feed Tube 3. Nozzle 4. Water Panel Evapo- rative Assembly 5. Distribution Tray 6. ”V” Notches 7. Water Panel 8. Scale Control Insert 9. Drain Hose 9 2 1. Note humidistat or control setting and turn dial to the “OFF” position. 2. Turn off water supply
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MAINTENANCE INSTRUCTIONS for APRILAIRE HUMIDIFIER MODELS 768-760 WARNING! 120 volts may cause serious injury from electrical shock. Disconnect power and shut off water supply before servicing. 5 2 3 4 1 6 1. Front Cover 7 2. Base 3. Evaporative Assembly 4. Distribution Tray 5. ”V” Notches 6. Water Panel 7. Scale Control Insert 8. Drain Hose 9. Power Cord 8 9 1. Note humidistat or control setting and turn dial to the “OFF” position. 2. Disconnect electrical power and turn off water supply. 3. Un
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MAINTENANCE INSTRUCTIONS for APRILAIRE HUMIDIFIER MODEL 440 CAUTION! Sudden operation may cause personal injury or property damage. Turn humidistat to “off” or lowest setting before servicing. 1. Note humidistat setting and turn dial to the “Off” position. 2. Remove two aluminum knobs (1), swing up and remove top cover (2) from humidifier. 3. Place finger under white plastic water outlet (3) at top of black water distribution pan (4). Lift up to pop outlet loose from hole and notch in black dis
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MAINTENANCE INSTRUCTIONS FOR MODELS 448-445 RESERVOIR PUMP SECTIONS WARNING! 120 volts may cause serious injury from electrical shock. Disconnect power and shut off water supply before servicing. IMPORTANT: Clean and refill reservoir, hose, pump and float every 30 days during heating season. 1. Pump Impellor Cap 2. Cap Sides 3. Impellor 4. Cap Flow Control Opening 5. Float 6. Arm Mechanism 3 5 2 2 4 6 1 A. TO CLEAN RESERVOIR 1. Hold bottom of reservoir (IT IS FILLED WITH WATER) and loosen retai
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MAINTENANCE INSTRUCTIONS for APRILAIRE HUMIDIFIER MODELS 350-360 WARNING! 120 volts may cause serious injury from electrical shock. Disconnect power and shut off water supply before servicing. 4 2 9 5 3 8 1. Inlet Grille 2. Distribution Tray 3. Scale Control Insert 6 4. Distribution Tray Cover 5. Water Panel 7 6. Drain Spud 1 7. Power Cord 8. Metal Housing 9. Evaporative Assembly 1. Disconnect electrical power and turn off water supply. 2. Remove screws of the inlet grille (1). The grille can n
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MAINTENANCE INSTRUCTIONS for APRILAIRE HUMIDIFIER MODELS 110-112 WARNING! 120 volts may cause serious injury from electrical shock. Disconnect power and shut off water supply before servicing. 2 6 1. Water Supply Line 2. Feed Tube 3. Swing Locks 4. Closure Clip 5. Closure Clip 6. Distribution Pan Cover 4 4 3 1 5 1. Disconnect electrical power and turn off water supply. 2. Disconnect: a) 120 volt electrical service. b) Copper water supply line (1) & feed tube (2). c) Drain line. d) 24 volt leads
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MAINTENANCE INSTRUCTIONS for APRILAIRE HUMIDIFIER MODELS 220-224 CAUTION! Sudden operation may cause personal injury or property damage. Turn humidistat to “off” or lowest setting before servicing. 5 1 6 1 2 2 4 3 3 1. “Z” Clip 2. Closure Clip 3. Closure Clip 4. Compression Fitting 5. Distribution Pan Cover 6. Feed Tube 1. Turn off water supply and turn down humidistat. 2. Remove three “Z” clips (1) that hold top half of unit to furnace plenum. 3. Slide off four closure clips (2 & 3) that hold
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LIMITED WARRANTY ® Your Research Products Corporation Aprilaire Humidifier unit is expressly warranted for one (1) year from date of instal- lation to be free from defects except, however, for the disposable water panel which will have to be replaced from time to time depending upon the amount of use. Research Products Corporation’s exclusive obligation under this warranty shall be to supply, without charge, a replacement for any part of the humidifier which is found to be defective within one
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® THE BEST IN INDOOR AIR COMFORT ® The Aprilaire Indoor Air Comfort System is an integrated group of air quality enhancement products designed to work with your heating and cooling system to make your home more comfortable. For the best in indoor air quality, ask your heating and cooling contractor about these fine Aprilaire products, or visit us at www.aprilaire.com to solve your Indoor Air Comfort needs. ® ® Aprilaire Aprilaire Automatic Humidifiers High Efficiency Air Cleaners ® ® The Best C
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SERVICE AND WATER PANEL REPLACEMENT RECORD Date Dealer Name P.O. BOX 1467 • MADISON, WI 53701-1467 ™ Products For Better Indoor Air Quality DP #10003882 5.9.00 Printed in U.S.A.
