Tjernlund Products 950-0029 Pressure Switch R-448A Common Questions Is the Robertshaw

Common Questions Is the Robertshaw 700-503 compatible with LP gas

Key Benefits for Technicians: Direct OEM Match: Fully replaces the legacy 669943 model with updated material specs for improved durability

Proven Compatibility: Designed by KMC Controls to serve as a reliable drop-in solution for critical airflow management components

Industrial Durability: Rated for consistent water service duty cycles in high-pressure process environments

Precise Modulation: Features a modified equal percentage flow curve for stable temperature control and optimized energy efficiency

Tjernlund Products 950-0029 Pressure Switch R-448A Common Questions Is the RobertshawAs a veteran HVACR technician, you know that keeping a side wall venter system online depends on precise airflow verification. The Tjernlund 950 0029 Pressure Switch is the mandatory fan proving switch designed specifically for Tjernlund SS2 venter systems. Featuring a non adjustable set point factory calibrated at . 40 W. C. on pressure drop, this replacement air pressure switch ensures the burner only fires when the draft inducer has established