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Humidifiers
Owner’s Manual
For Models 110, 112, 220, 224, 350, 360, 440,
445, 448, 558, 560, 568, 760 & 768
Includes Safety & Operating Instructions
and Warranty Information
READ AND SAVE THESE INSTRUCTIONS
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TABLE OF CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Operating Instructions • Humidifier Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 • Manual Humidistat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Effect of Water Characteristics
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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 invested in the highest quality equipment currently available. Research Products Corporation is the largest manufacturer of whole house humidifiers, air cleaners and energy recovery ventilators and is a recognized leader in the heating and air conditioning industry today. Please be assured tha
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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 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 do exactly that. Nature, i
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Capacity is high because an average home (10,000 cu. ft.) requires the addition of approximately 9 gallons of water per day to maintain 35% relative humidity when the outside temperature is 20°. The smallest Aprilaire Humidifier under most operating conditions, has this humidifying capacity. Trouble-free performance and minimum maintenance are assured by the design features of the Aprilaire Humidifier. All unit housing parts that come in contact with water are non-metal and will never rust or co
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t s e T II. OPERATING INSTRUCTIONS- 448, 558, 568, 768 There are two possible modes of operation of your Aprilaire Humidifier Control - Automatic and Manual. An explanation of both follows: Automatic Mode: (Manual Mode-see pg 6) Your Humidifier Control is installed in the cold air return. 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 A). 1. Turn the dial se
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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 1° change in outdoor temperature, the control will automatically adjust the 1 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 to a higher temperature. 3. Turn the control dial setting to the “Off” posit
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Manual Mode: (Automatic Mode – see pg 4) Your Aprilaire Humidifier is controlled by a Humidifier Control 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 to 25% several
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III. OPERATING INSTRUCTIONS- 110, 112, 220, 224, 350, 360, 440, 560, 760 Your new Aprilaire Humidifier is controlled by a manual humidistat installed either in the living area or in the cold air return. It is important to anticipate a drop in temperature and reduce the setting accordingly to avoid excessive condensation. For example. with an outside temperature of 20˚ the correct setting will be 35% relative humidity. If the temperature is expected to fall to 0˚ that evening, then merely red
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Water used in homes contains varying amounts of minerals. The residue remaining as a result of hard water evaporation is primarily calcium and magnesium components and is usually quite hard, scaly, and dense. Residue from softened water tends to be soft and fluffy and has a greater volume than hard water scale. The service life of a Water Panel evaporator may be extended by using hard water, but in either case, the Water Panel evaporator is usually changed once a year. In the drain-equipped mode
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HUMIDIFIER CONTROL: Humidifiers controlled by the Humidifier Control require no control adjustment. Shut off the water supply to the humidifier by closing the saddle valve. MANUAL HUMIDISTAT: For humidifiers controlled by a manual humidistat, simply turn the humidistat to the “Off” position. Shut off the water supply to the humidifier by closing the saddle valve. VIII. PERIODIC PREVENTATIVE MAINTENANCE NOTE: Periodic inspection and preventive maintenance of your total heating system is important
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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. 1. Water Supply Line 2 6 2. Feed Tube 3. Swing Locks 4. Closure Clip 5. Closure Clip 6. Distribution Pan Cover 4 4 3 1 5 1. Note Humidistat setting and turn dial to the “off” position. 2. Disconnect electrical power and turn off water supply. 3. Disconnect: a) 120 volt electrical service. b) Copper water s
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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 1 4. Compression Fitting 5. Distribution Pan Cover 6. Feed Tube 1. Note Humidistat setting and turn dial to the “off” position. 2. Turn off water supply and turn down humidistat. 3. Remove three “Z” clips (1) that hold top half of unit to f
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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 1. Inlet Grille 2. Distribution Tray 3. Scale Control Insert 8 4. Distribution Tray Cover 5. Water Panel 6 6. Drain Spud 7 7. Power Cord 1 8. Metal Housing 9. Evaporative Assembly 1. Note Humidistat setting and turn dial to the “off” position. 2. Disconnect electrical power and turn off water sup
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MAINTENANCE INSTRUCTIONS for APRILAIRE HUMIDIFIER MODEL 440 CAUTION! Sudden operation 5 may cause personal injury or 3 2 property damage. Turn 4 humidistat to “off” or lowest setting before servicing. 1 1 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. MODELS 440, 445 & 448 3. Place finger under plastic water nozzle (3) at top of water distribution tray (4). Lift up to pop 1. Cover Knob outlet lo
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MAINTENANCE INSTRUCTIONS for APRILAIRE HUMIDIFIER MODELS 445-448 WARNING! 120 volts may cause 5 3 serious injury from electrical 2 shock. Disconnect power and 4 shut off water supply before servicing. 1 1 1. Note humidistat or Humidifier Control setting and turn dial to the “Off” position. 2. Disconnect electrical power and turn off water supply. MODELS 440, 445 & 448 3. Remove two aluminum knobs (1), swing up and remove top cover (2) from humidifier. 1. Cover Knob 4. Place finger under plastic
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MAINTENANCE INSTRUCTIONS for MODELS 445-448 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 E. TO OIL MOTOR 1. Hold bottom of reservoir (IT IS FILLED 1. Disconnec
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MAINTENANCE INSTRUCTIONS for APRILAIRE HUMIDIFIER MODELS 558-560-568 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. Front Cover 7 2. Feed Tube 3. Nozzle 4. Water Panel Evaporative Assembly 5. Distribution Tray 6. ”V” Notches 7. Water Panel 8. Scale Control Insert 9 2 9. Drain Hose 1. Note humidistat or Humidifier Control setting and turn dial to the “OFF” position. 2. Turn off water
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MAINTENANCE INSTRUCTIONS for APRILAIRE HUMIDIFIER MODELS 760-768 WARNING! 120 volts may cause serious injury from electrical shock. Disconnect power and shut off water supply before servicing. 5 2 3 4 1. Front Cover 2. Base 1 6 3. Evaporative Assembly 7 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 Humidifier Control setting and turn dial to the “OFF” position. 2. Disconnect electrical power and turn off water
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TABLE OF CONTENTS LIMITED WARRANTY ® Your Research Products Corporation Aprilaire Humidifier unit is expressly warranted for one (1) year from date of installation 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 defec
