The iO HVAC Controls SC-LLC-200 is a lead-lag controller that equalizes runtime between two parallel HVAC units by alternating lead and lag duty on a programmable schedule — extending equipment life and balancing wear.

Key Features & Benefits

• Automatic lead/lag rotation — alternates duty between two units on a programmable schedule.
• Balanced runtime — equalizes wear to extend equipment life.
• Commercial-grade control — reliable operation for parallel HVAC systems.

Ideal For

Commercial installations with two parallel HVAC units that need balanced runtime and automatic lead-lag rotation.