Humidifiers Owner’s Manual For Models 350, 360, 400, 400M, 500, 500M, 600, 600M, 700 & 700M Includes Safety & Operating Instructions and Warranty Information READ AND SAVE THESE INSTRUCTIONS
TABLE OF CONTENTS INTRODUCTION Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Operating Instructions – Models 400, 500, 600 & 700 . . . . . . . . . . . . . . . .4 • Digital Humidifier Control Indicator Lights . . . . . . . . . . . . . . . . . . . . . .4 • Blower Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Do not use the saddle valve to regulate the water flow. It is designed to be completely open or closed. PRINCIPLE OF OPERATION With your purchase of this humidification system, you have invested in a humidifier that operates on the evaporative principle – nature’s own way of adding moisture – providing optimum relative humidity (RH) throughout the heating season.
The control has lights which indicate humidifier operation, when the Water Panel needs to be replaced and when service is required. See “Operating Instructions” for more information. There are many humidifiers on the market. They all add moisture… with varying degrees of efficiency. None, however, offer the features, design, and performance incorporated into your new Aprilaire humidifier.
WATER PANEL CHANGE INDICATOR MANUAL MODE The control keeps track of humidifier operation time. The yellow “Change Water Panel” light flashes after a preset amount of running time has elapsed. This running time is preset by the installer based on the humidifier model and water hardness. FIGURE B – Manual Mode Refer to the Annual Maintenance section for instructions on changing the Water Panel or call your heating and air conditioning dealer for service.
TABLE 3 – Operation Guide Condition Solution Condensation on windows. Reduce the setting on the control dial by 1 increment. Lack of humidity. Increase the setting on the control dial by 1 increment. If the Humidifier Control is already at the maximum setting of “7”, set the Blower Activation Switch to “ON”. The humidifier should be plumbed to hot water when using the Blower Activation feature. Humidifier does not operate. (Solenoid does not “click” when control is moved to “Test/Reset” position.
ADDITIONAL INFORMATION FOR ALL MODELS Be sure to keep fireplace dampers closed when not in use. They provide an excellent escape route for heat, as well as humidity. 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.
ANNUAL SUMMER SHUTDOWN For Models 400, 400M, 500, 500M, 600 and 600M close the bypass damper, which is a part of the humidifier, with the small damper handle. Humidifier Control: Digital Humidifier Control in Automatic Mode (see Figure A): No adjustment is necessary. Digital Humidifier Control in Manual Mode (see Figure B): Set the knob to the “OFF” position.
REQUIRED MAINTENANCE INSTRUCTIONS (APRILAIRE HUMIDIFIER MODELS 350 & 360) (APRILAIRE HUMIDIFIER MODELS 400 & 400M) CAUTION 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 4. Distribution Tray Cover 5. Water Panel Evaporator 6. Drain Spud 7. Power Cord 8. Metal Housing 9.
REQUIRED MAINTENANCE INSTRUCTIONS (APRILAIRE HUMIDIFIER MODELS 700 & 700M) CAUTION WARNING Sudden operation may cause personal injury or property damage. Turn Humidifier Control to “OFF” or lowest setting before servicing. 4 5 3 8 1. Front Cover 7 1 2. Base Assembly 4. Water Panel Evaporative Assembly 3. Water Panel Evaporative Assembly 5. Distribution Tray 4. Distribution Tray 6. “V” Notches 2 3 4 1. Humidifier Cover Assembly 6 2. Feed Tube 3.
LIMITED WARRANTY Your Research Products Corporation Aprilaire humidifier unit is expressly warranted for five (5) years from date of installation to be free from defects in materials or workmanship except, however, for the disposable Water Panel which will have to be replaced from time to time depending upon the amount of use.