Honeywell H1008A Automatic Humidity Controls Manual
The H1008A,D Automatic Humidity Controls with HumidiCalc+™ Software are duct mounted and provide automatic, low voltage, electronic control of by-pass flow- through, powered flow-through, steam and drum humidifiers in central heating systems. The H1008D also controls heat/energy recovery units and dehumidifiers. The H1008A,D are designed to automatically adjust the humidity level based on indoor temperature and humidity, inferred or measured outdoor temperature and the setting of the frost factor dial.
The frost factor setting is used to maintain a comfortable humidity level in the home while reducing moisture condensation on inside windows. The HumidiCalc+™ Software infers the outdoor temperature by monitoring the equipment cycles and eliminates the need for an outdoor temperature sensor when used on single-stage gas or oil furnaces. With the use of the C7089H Outdoor Temperature Sensor (purchased separately), the H1008A,D also provide automatic humidity control in heat pump and multi-stage systems.