Description
The Kele Product UCS-421E 4-Stage Sequencer is an essential part used to regulate staged equipment operation from a single control signal in HVAC systems. It operates by converting analog input into multiple relay outputs, enabling sequential control of boilers, chillers, or VAV units. It is used in commercial installations where multi stage heating or cooling control is required. It plays a vital role within the system by improving operational efficiency, supporting stable conditions, and helping regulate equipment cycling while reducing the risk of damage from improper load distribution.
