Generalaire 7170 Digital Humidistat 24V Wall Duct Mount

Product Description

The GENERALAIRE 7170 is a digital humidistat designed for automatic humidity control in forced-air heating systems. Operating at 24 volts, it directly controls the furnace blower motor, enabling the humidifier to run independently of a heating call when humidity levels require adjustment. The 7170 is compatible with both wall-mount and duct-mount installation configurations, giving installers flexibility to position the sensing element where it best reads conditioned air. This unit is intended for installation by licensed HVAC technicians familiar with low-voltage control wiring and whole-home humidification systems.

The 7170 is suited for residential forced-air systems where a whole-home humidifier is integrated into the HVAC equipment. Its dual wall and duct mounting options make it adaptable to a range of installation layouts, whether sensing humidity at the thermostat wall location or directly within the return or supply duct. Technicians deploying bypass or fan-powered humidifiers will find the blower motor control function essential for maintaining proper airflow through the humidifier media during non-heating seasons.

Key Features

• Digital automatic humidity sensing for precise whole-home humidity control
• 24-volt low-voltage operation compatible with standard HVAC control circuits
• Controls furnace blower motor to drive airflow through the humidifier independently of heat calls
• Supports both wall-mount and duct-mount installation configurations
• Also referenced by cross-reference identifiers 1016728 and GFI-7170

Compatibility

Designed as an OEM-style replacement humidistat for residential forced-air furnace and whole-home humidifier systems requiring a 24-volt digital wall or duct-mounted humidity controller.

Installation Notes

Installation should be performed by a licensed HVAC technician. De-energize the furnace and humidifier control circuit at the breaker before making any low-voltage wiring connections. When duct-mounting, select a location with representative airflow and avoid placement near supply registers or areas prone to stratification. Refer to local mechanical codes and the humidifier manufacturer wiring diagram for proper terminal assignments.

Technical Specifications

• Control Voltage: 24 volts
• Mount Type: Wall or Duct Mount
• Control Type: Digital Automatic
• UPC: 683786071626

Standard Information

• Brand: GENERALAIRE
• Manufacturer Part Number: 7170