Common Questions: What is the rotation direction for the S1-024-21672-001

Rated for 240 degrees Fahrenheit

model GVD-4PL

burner derating and specialized orifice sizing may be required per manufacturer guidelines

This kit is compatible with Ultra-230 Series 3 and Series 4 boilers

Belimo GKB24-MFT Actuator 320819-301 Common Questions: What is theThe Belimo GKB24 MFT Actuator is a high torque electronic fail safe actuator designed for precise control in demanding HVAC applications. Operating on a 24V AC DC power supply, this unit delivers 360 in lb of torque, making it suitable for large control dampers and valve assemblies. Utilizing Multi Function Technology (MFT), the actuator is fully programmable, allowing technicians to field configure control signals including 2 10VDC, 4 20mA, or pulse