30GN Flotronic II™ Air-Cooled Reciprocating Liquid Chiller Features

Carrier's 30GN air-cooled reciprocating chillers with communicating controls offer peak operating performance in nominal sizes ranging from 36 tons to 400 tons (127 to 1400 kW) and offer either standard TXV controls or Carrier's patented Flotronic II long-stroke expansion valve (EXV) controls. With over 25,000 long-stroke EXV Flotronic chillers installed worldwide, Carrier's 30GN chillers are favored by specifiers and customers. The powerful 30GN Flotronic II chillers incorporate the latest in integrated microprocessor control and refrigeration cycle optimization devices along with built-in self diagnostics capability which quickly pinpoints the location of any system problem. The Flotronic II control maintains a valuable record of the machine's history, complete with starts and run data, for periodic service or maintenance reference. The electronic expansion valve (EXV) and the microprocessor controller allow the chiller to operate at low pressure differentials, and accurately control refrigerant superheat during start-up and load changes. The result is efficient energy usage and accurate leaving-fluid temperature (LWT) (to 1.25 F [0.7 C] from the LWT set point) functions. These chillers offer cost saving advantages because they are smaller and easier to install as well as exceptionally efficient. Full and part load EERs (Energy Efficiency Ratios) are up to 9.9 for full load and 12.0 for part load resulting in a significant savings in operating expense.