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READ AND SAVE THESE INSTRUCTIONS
®
AUTOMATIC HUMIDIFIER
®
The Best Cure For Dryness
OWNER’S MANUAL
FOR MODELS 400, 600, & 700
Includes Safety, Operating and Maintenance
Instructions and Warranty
TABLE OF CONTENTS
PAGE
Introduction............................................................................1
Principle of Operation ............................................................2
Operating Instructions
•Automatic Mode................................................................4
•
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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 the Aprilaire 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 invested in the
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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 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 do exactly that.
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There are some homes where drain facilities are not accessible or available. For these situations, or where high water hardness is not a problem, the newest Aprilaire, Model 400, is designed to satisfy these applications. Capacity is high because an average-size home (10,000 cu. ft.) requires the addition of approximately 9 gallons of water per day to maintain 35% relative humidity when the outside temper- ature is 20°. The smallest Aprilaire Humidifier under most operating conditions, has thi
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II. OPERATING INSTRUCTIONS There are 2 possible modes of operation of your Aprilaire Humidifier Control and an explanation of both modes follows: Automatic Mode: (Manual Mode-see pg 5) Your Aprilaire 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 setting knob to “5,” which is within
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t s e T The relative humidity in (Figure A) your home will now be 7 6 accurately controlled to meet your needs and should 5 not need further adjustment during future heating 4 seasons. Make note of the dial setting in the event you Off 3 temporarily move the knob when performing annual 2 1 maintenance of the Aprilaire Automatic Mode Humidifier adjustments may be necessary. This is dependent upon your individual home construction, refer to the “Operation Guide” (Table 1). Your Aprilaire Automatic
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(Table 2) % Relative Humidity Guide Outdoor Temperature (ºF) -10 0 10 20 30 40 1 10 1010 15 2025 2 10 1015 20 2530 3 10 1520 25 3035 4 15 2025 30 3540 520 25 30 35 40 45 6 25 3035 40 4545 7 30 3540 45 4545 As an example, if the outdoor temperature is 20º F, and, following step 3, the humidifier turns off at “5” on the dial range, then the RH in your home is 35%. between or outside of the listed values in Table 2. In these cases, you can only approximate your home’s actual indoor RH. Manual Mode:
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(Table 3) Outdoor-Indoor Relative Humidity Outside Temperature Recommended RH +40° 45% +30° 40% +20° 35% +10° 30% 0° 25% –10° 20% –20° 15% tion of too high relative humidi- (Figure B) ties. This same condensation can take place in other areas in your home with the possibility of dam- age resulting. The humidistat is a precision instrument that can be used to determine the RH accurately in your home during the winter. Turn MANUAL MODE the dial to the lower setting, then reverse the dial directi
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Additional Information Be sure to keep fireplace dampers closed when not in use. They provide an excellent escape route for heat, as well as humidity. Humidity is lost at an even faster rate than heat because water vapor tends to seek its own level and your humidifier would not be able to replace it even when running at full capacity. On occasion, indoor moisture producing activities such as clothes drying, cooking, showers, etc., may raise the relative humidity level higher than it should be, e
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IV. ANNUAL MAINTENANCE For best performance, we recommend that you replace the water panel evaporator in your Aprilaire Humidifier annually with the exception of Model 400 where it should be changed twice a season. • Call the installer of your Aprilaire Humidifier. This information is often found on your equipment. • Call your heating and air conditioning dealer. • Use our “Dealer Locator” at: www.aprilaire.com • Look in the Yellow Pages under Humidifying Apparatus or Heating & Air Conditioner
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Inspection and Service Instructions 1. Disconnect electrical power to the furnace and shut off water supply. 2. Disconnect the water line at the inlet OUTLET COMPRESSION compression nut. NUT 3. Remove the in-line strainer from inside the inlet side of the valve by using a ORIFICE small nail or wire. 4. Flush the in-line strainer clean or SOLENOID replace with a new strainer, Service VALVE Department, Part No. 4004. 5. Replace the in-line strainer and INLET reconnect the inlet water line (Double
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MAINTENANCE INSTRUCTIONS for APRILAIRE HUMIDIFIER MODEL 400 WARNING! 120 volts may cause serious injury from electrical shock. Disconnect power and shut off water supply before servicing. 1. Front Cover 2. Feed Tube 3. Integral Damper 4. Water Panel Evaporator Assembly 5. Distribution Tray 6. “V” Notches 7. Water Panel 8. Scale Control Insert/ Float Chamber 9. Overflow Hose 10. Float Cover 11. Float 12. Water Level Sensor Assembly MODEL 400 1. Note humidistat or control setting and turn dial t
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MAINTENANCE INSTRUCTIONS for APRILAIRE HUMIDIFIER MODEL 600 CAUTION! Sudden operation may cause personal injury or property damage. Turn humidistat or control to “off” or lowest setting before servicing. 1. Front Cover 2. Feed Tube 3. Integral Damper 4. Water Panel Evaporator Assembly 5. Distribution Tray 6. “V” Notches 7. Water Panel 8. Scale Control Insert 9. Drain Hose 1. Note humidistat or control setting and turn dial to the “OFF” position. 2. Turn off water supply. 3. Press the tabs in th
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MAINTENANCE INSTRUCTIONS for APRILAIRE HUMIDIFIER MODEL 700 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. Water Panel Evaporator 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
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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
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SERVICE AND WATER PANEL REPLACEMENT RECORD Date Dealer Name
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P.O. BOX 1467 • MADISON, WI 53701-1467 ™ Products For Better Indoor Air Quality DP #10005406 Printed in U.S.A.