Aprilaire 500 Owner's Manual

READ AND SAVE THESE INSTRUCTIONSOwner’s ManualFor Models 400, 500, 600 & 700 Includes Safety & Operating Instructions and Warranty Information

- 8 -For best performance, we recommend that you replace the WaterPanel evaporator in your Aprilaire Humidifier at least annually withthe exception of

- 9 -1. Disconnect electrical power to the furnaceand shut off water supply.2. Disconnect the water line at the inletcompression nut.3. Remove the in-

912611103785214MODEL 400- 10 -1. Front Cover2. Feed Tube3. Integral Bypass Damper4. Water Panel EvaporatorAssembly5. Distribution Tray6. “V” Notches7.

963785214- 11 -1. Note Humidifier Control setting and turn dial to the “OFF” position.2. Turn off water supply. Turn the integral bypass damper (3) to

547268139MODEL 700- 12 -1. Humidifier CoverAssembly2. Base Assembly3. Water Panel EvaporativeAssembly4. Distribution Tray5. ”V” Notches6. Water Panel

- 13 -Your Research Products Corporation Aprilaire®Humidifier unit is expressly warranted for one (1)year from date of installation to be free from de

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, add

Thank you for your recent Aprilaire®Humidifier purchase. We appreciate yourbusiness and are pleased to add your name to our growing list of customers.

- 1 -With your purchase of this humidification system, you have invested in ahumidifier that operates on the evaporative principle – nature’s own way

- 2 -Trouble-free performance and minimum maintenance are assured by thedesign features of the Aprilaire Humidifier. All humidifier housing parts that

- 3 -There are 2 possible modes of operation of your Aprilaire Humidifier Control– Automatic and Manual. An explanation of both modes follows:Automati

- 4 -Your Aprilaire Automatic Humidifier is a high precision system that willaccurately maintain the relative humidity in your home to a maximum of45%

- 5 -Manual Mode: (Automatic Mode – see page 3)Your Aprilaire Humidifier Control is installed in the cold air return. It isimportant to anticipate a d

- 6 -Your Aprilaire Humidifier Controlis a precision instrument thatcan be used to determine the RHaccurately in your home duringthe winter. To do thi

- 7 -Your new Aprilaire Humidifier is controlled by a manual humidistat installedeither in the living area or in the cold air return. It is important