Heat Transfer Products Group LLC released its new EcoNet® Enabled Unit Coolers. Developed in conjunction with Rheem Manufacturing, the company says it builds on the efficiency of Rheem’s EcoNet® technology and brings it to the commercial refrigeration market.

The unit coolers are electronically operated evaporators for walk-in coolers and freezers designed for energy efficiency and simnpler installation. Officials say the EcoNet technology saves energy in refrigeration systems through precise superheat and space temperature control, fan cycling, and controlling how often the system goes into defrost based on compressor runtime. It eliminates unnecessary defrosts, maximizes energy efficiency with less compressor runtime, reduces liability by eliminating icing issues, reduces fan speed to 50% during off cycle to save energy, and reduces temperature fluctuations by regulating defrosts for improved product quality. EcoNet Enabled Unit Coolers can be configured to work on a single or dual evaporator coil, and can be used with a condensing unit in single and multiple evaporator installations as a group. The controller can be used with up to four groups with up to six evaporators per group wired on a single bus.

The controller features a back-lit heated, two-row LCD display screen on the controller board that serves as a basic full text user interface to specify space temperature and superheat setpoints, check temperature status, view alarms, select refrigerant, force a defrost, and more. Supported refrigerants include R404A, R407A, R407C, R448A (default), R449A/B, R450A, R507, and R513A. The controller replaces the TXV, liquid line solenoid valve, room thermostat, time clock and defrost termination, and fan delay. The controller is now available factory-installed on Next-Gen All-Temp Low Profile Unit Coolers and will be available for shipment directly from the factory and finished goods warehouses across the country. Installation in additional unit cooler models will be added in the coming months.

-- Heat Transfer Products Group LLC