An electronic dehumidistat control that features multiple ventilation modes to assist homeowners with controlling and optimizing their ventilation system.   This control activates the system on 3 possible modes of operation: • Ventilation Mode • Recirculation Mode • Standby Mode Ventilation mode removes stale air from inside your home and replaces it with fresh outdoor air. Recirculation mode takes air from areas of your home and redistributes it to other rooms. No outdoor air is introduced into the home. Standby mode leaves the appliance inactive unless the indoor relative humidity is above the setpoint on the control.   The fan speed has 3 settings: Reduced, Medium, and Normal or 20min/h.   Manufactured with the customer in mind, this controller works with all new Greentek fresh air appliance models.