What Is a Secondary Loop

The secondary loop uses a variable speed pump to manipulate the flow of the fluid such that the cooling coil demand is satisfied. … The secondary cooling loop (‘Secondary Chilled Water Loop’) contains the fluid to fluid plate heat exchanger on the supply side half loop and a cooling coil on the demand side.

What is a secondary loop refrigeration system?

A secondary loop refrigeration system incorporates two different refrigerants to provide cooling. In all systems, the primary loop is a traditional direct expansion design that uses a phase change refrigerant such as R-404A and a compressor to circulate the refrigerant.

What is a primary loop?

Primary Loop Piping is commonly used in boiler heating systems that run needing multiple temperatures or contstant temperature at the hydronic boiler is required. Primary Loop Piping allows non condensing boilers to maintain a heat level in the boiler high enough to allow the boiler to run at its most efficient state.