Tjernlund 950-0016 Vent System Fan Prover

The Tjernlund 950-0016 Vent System Fan Prover is an old-style fan proving switch built for SS-2 vent systems. With an external junction box mount, this unit provides straightforward wiring and service prior to operation, reducing installation time and improving safety.

This vent system fan prover delivers dependable control, ensuring the exhaust fan only runs when air flow and safety checks are satisfied. It is suited for residential and light commercial applications, offering compatibility with SS-2 configurations and durable performance. Designed for installers who value simplicity and compatibility with existing venting infrastructure.

• Old-style design with proven reliability
• External junction box mounting for easy wiring
• Compatible with SS-2 vent systems
• Pre-wired connections for quick installation
• Durable construction for harsh environments

Whether upgrading existing equipment or specifying a new install, the Tjernlund 950-0016 Vent System Fan Prover helps meet safety standards while keeping maintenance simple.