If the installation wiring diagrams for Aprilaire humidifiers. installation site has a 3-month or shorter heating season or very hard water, you may want to adjust the setting (see Figure C). Page 4: Installation The Model 62 shipped with the Model 800 steam humidifier is INSTALLATION factory set to "OFF.". Aprilaire 60, 62, 4655 - Humidifier Manual. Also See for 60: Safety and installation instructions manual (16 pages), Operating instructions manual (10 pages),. NOTE: This concerns the Model 60 only. The Model 62 is used for steam applications that do not require this feature. Humidifier On:.
12 13 InstallingtheHumidifierControlfor ManualOperation IfitisnotfeasibletoinstalltheOutdoorTemperature Sensor,theHumidifierControlcanbeoperatedin ManualMode.. NOTE: If used in conjunction with an Aprilaire 8570 Communicating Thermostat, and the Blower Activation feature is desired, DO NOT wire the A B communication terminals. The Model 62 shipped with the Model 800 steam humidifier is factory set to OFF. The Model 62 does not have the Change Water Panel light on the control.