Some details about this RFI 1100 water cooler

With a power output of 118 kW (for 20°C of 30% glycol water and 45°C ambient air), it incorporates two separate refrigeration circuits, with:

• 2 x 2 Panasonic hermetic scroll compressors operating on R513A
• 2 brazed plate evaporators protected by a flow controller
• 2 microchannel condensers with epoxy coating
• 2 variable speed fan modules with pressure transducer and parameter setting for a fixed high pressure (55°C)
• 2 electronic expansion valves with factory-set MOP and LOP parameters
• 2 sets of high/low pressure switches
• 2 EBARA SHE 40-200 / 5.5 kW circulation pumps for operation with 30% MEG glycol, connected in parallel
• One 300-liter insulated pressure tank with enamel coating
• One set of isolation valves and check valves for 2 x 100% redundancy operation
• One factory-set automatic bypass valve
• One 3-way recirculation valve for preparing the glycol water to the setpoint (in case of hot start-up)
• Stainless steel braided hose connections terminated with DN65 (2 1/2″) stainless steel flanges
• And a control/command cabinet, integrating a main disconnect switch, an ELIWELL type control PLC (with 4 regulation stages: 0%-25%-50%-75%-100%), Modbus TCP/IP communication using addresses identical to the existing CAREL PLC, and various dry contacts (general fault, pre-alarm, high glycol water temperature, 3-way valve open, pump operation, etc.).

Thank you to Hervé Thermique and its teams for their visit and for the trust placed in EURODIFROID solutions.

Cooler tested, approved… and ready to go!