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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...
Here, briefly, is the method: Model 400A which should be changed twice per heating season. Except for Models 350 and 360, the Aprilaire humidifier is installed to operate The distribution tray incorporates a synthetic fabric liner that is designed to in conjunction with the furnace blower motor.
Your home and its furnishings are always protected from the damaging effects of excess condensation Your Aprilaire Humidifier Control is installed in the cold air return duct. or low humidity, during the heating season. During the first heating season, your Humidifier Control needs to be set initially to match your home’s condition.
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ADDITIONAL INFORMATION TABLE 1 – Operation Guide Your humidifier is a precision system that will accurately maintain the RH in Condition Solution your home. For every 1°F change in outdoor temperature, the Automatic Condensation on windows. Reduce the setting on the control dial by Digital Humidifier Control will automatically adjust the indoor RH by 1/2%.
90-1237 Your Automatic Digital Humidifier Control is installed in the cold air return. Your Aprilaire humidifier is controlled by a Manual Humidifier Control (see When installed in the Manual Mode (see Figure B), it is important to Figure C). The Manual Humidifier Control is installed either in the cold air anticipate a drop in outdoor temperature and reduce the setting accordingly return duct or on an interior wall of the home.
(Hot water Heating & Air Conditioner Contractors. is required for Models 350 and 360. Do not use hot water with Model 400A.) • If none of the above is successful and you still need information, Water used in homes contains varying amounts of minerals.
4. Flush the in-line strainer clean or replace heating system is important for efficient and safe operation. Call your with a new strainer, Service Department, SOLENOID Aprilaire dealer for humidifier service and maintenance inspection. Part No. 4004. VALVE 5. Reconnect the inlet water line. Double INLET Wrench to Prevent Leaking.
Replace the Water Panel evaporator (Stock No. 35) with a Genuine Aprilaire Water Panel. Slide the Water Panel back into the scale control insert (3) 8. Inspect the plastic feed tube (2) by gently flexing it and looking for cracks or signs of wear.
Replace the Water Panel evaporator (Stock No. 35 for new Genuine Aprilaire Water Panel. Slide the Water Panel evaporator back into the scale Models 600A & 600M and Stock No. 10 for Models 500A & 500M) with a new Genuine control insert with the colored spot up and snap the distribution tray (4) back into place.
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.
RECOMMENDED WIRING DIAGRAMS INSTALLATION OPTIONS (SEE STEP 7 ON BACK AND “HUMIDIFIER CONTROL SAFETY AND INSTALLATION INSTRUCTIONS” FOR DETAILED WIRING INSTRUCTIONS) The Model 500M and 500A Aprilaire can be installed on either the supply or return Model 500M Model 500A...