Old-style fan proving switch designed for Tjernlund SS-2 systems. Features external junction box mount for pre-2000s installations. Verifies proper fan operation in forced-air heating and ventilation systems.
Specifications
- Product Type:
- Fan Proving Switch
- Application:
- Residential/Commercial
- System Type:
- Furnace, Air Handler, Forced Air System
- Installation Type:
- OEM Replacement
- Mounting Type:
- External Junction Box Mount