The PEMS C574A is a two-speed stack relay designed for use in oil-fired heating and hydronic systems. Mounted directly in the flue stack, this control monitors flue gas temperature to prove burner operation and provide primary safety shutoff, helping protect equipment and occupants from unsafe operating conditions.
Key Features
- Two-speed operation for enhanced system control flexibility
- 1/2″ stack mounting for straightforward installation in standard flue pipe
- 120V operating voltage for compatibility with residential and light commercial heating systems
- 3000 RPM motor speed for reliable and responsive stack sensing
- Functions as a primary safety control on oil-fired burners
- Monitors flue stack temperature to verify ignition and burner operation
- Provides automatic safety lockout in the event of ignition failure
Specifications
- Brand: PEMS
- SKU: C574A
- Speeds: 2
- Stack Connection: 1/2″
- Voltage: 120V
- Motor Speed: 3000 RPM
Application
The C574A is suited for installation on oil-fired furnaces, boilers, and hydronic heating systems where stack-mounted primary controls are required. Its two-speed design and 120V rating make it a versatile choice for a wide range of residential and light commercial heating applications. Always follow manufacturer installation guidelines and applicable local codes when installing or replacing stack relay controls.
