Aprilaire Humudifiers 400A Owner's Manual
Aprilaire owner's manual
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Also See for Humudifiers 400A:
- Owner's manual (13 pages) ,
- Safety and installation instructions (2 pages) ,
- Instructions (2 pages)
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Summary of Contents for Aprilaire Humudifiers 400A
- Page 1 Humidifiers Owner’s Manual For Models 350, 360, 400A, 500A, 500M, 600A, 600M, 700A & 700M Includes Safety & Operating Instructions and Warranty Information READ AND SAVE THESE INSTRUCTIONS...
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Page 2: Table Of Contents
You have invested in the highest quality equipment available. Aprilaire manufactures whole-house indoor air quality products and is a recognized leader in the heating and air conditioning industry. -
Page 3: Principle Of Operation
The operating principle of your Aprilaire humidifier provides all of these advantages. Here, briefly, is the method: Except for Models 350 and 360, the Aprilaire humidifier is installed to operate in conjunction with the heating, ventilating, air conditioning equipment (HVAC) blower motor. -
Page 4: Operating Instructions - Models 400A, 500A, 600A & 700A
AUTOMATIC MODE FIGURE A – Automatic Mode Your Aprilaire Humidifier Control is installed in the cold air return duct. 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). -
Page 5: Manual Mode
MANUAL MODE FIGURE B – Manual Mode Manual Mode Label and Resistor When installed in the Manual Mode (see Figure B), 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°F the correct setting will be 35% RH. -
Page 6: Operating Instructions - Models 350, 360, 500M, 600M & 700M
MODELS 350, 360, 500M, 600M & 700M FIGURE C – Manual Humidifier Control Your Aprilaire humidifier is controlled by a Manual Humidifier Control (see Figure C). The Manual Humidifier Control is installed either in the cold air return duct or on an interior wall of the home. With the Manual Humidifier... -
Page 7: Additional Information For All Models
On occasion, indoor moisture producing activities such as clothes drying, cooking, showers, etc., may raise the RH level higher than it should be, even though the Aprilaire humidifier is not operating. Telltale indications are condensation or frost on cold surfaces such as windows, doors, walls, etc. If such condensation persists for several hours, your home should be ventilated to dissipate the potentially damaging excess moisture. -
Page 8: Annual Summer Shutdown
ANNUAL SUMMER SHUTDOWN For Models 400A, 500A, 500M, 600A and 600M close the bypass damper, which is a part of the humidifier, with the small damper handle. Humidifier Control: Automatic Digital Humidifier Control in Automatic Mode (see Figure A): No adjustment is necessary. Automatic Digital Humidifier Control in Manual Mode (see Figure B): Set the knob to the “OFF”... -
Page 9: Models 350 & 360
Replace tube if it is cracked, brittle, or has been damaged. 9. Slide a new Aprilaire No. 45 Water Panel evaporator (7) into the scale control insert/float chamber (8). Snap the distribution tray (5) back on the scale control insert (8). -
Page 10: Models 500A & 500M
(Stock No. 35 for Models 600A & 600M and Stock No. 10 for Models 500A & 500M) with a new Genuine Aprilaire Water Panel. Slide the Water Panel evaporator back into the scale control insert with the colored spot up and snap the distribution tray (5) back into place. -
Page 11: Limited Warranty
This warranty gives you specific legal rights and you may also have other rights which vary from state to state. WARRANTY REGISTRATION Visit us on-line at www.aprilaire.com to register your Aprilaire product. If you do not have on-line access, please mail a postcard with your name, address, phone number, product purchased and date of installation to: Research Products Corporation, P.O.
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