Watercooled direct expansion Free-Cooling units with EC Inverter Plug-Fans
TO 134 KW
TO 38 TON)
Units with two separate cooling systems, a primary direct expansion circuit (DX) and a secondary chilled water circuit (CW).
The units feature a microprocessor that manages 3 operating modes: DX only, MIXED and CW. Based on the external temperature, it allows to maximize the energy savings by intelligently managing the three operating modes.This type of unit is especially suited for systems requiring particular RELIABILITY and ENERGY SAVING for the entire air-conditioning system.
The FOP range features EC Inverter Plug-Fans; high ESP fans are also available as accessory.
The EC Inverter Plug-Fans allow consumption reduction at partial loads up to 61% comparing to radial fans, with the modulation of absorbed power depending on the real thermal load.
The FOP range is available in two air discharge versions: FOPT with top air discharge and FOPB with bottom air discharge.
Unit supervision is developed by means of Modbus RTU protocol over RS485 serial interface as standard configuration. Other communication protocols and interfaces are available as option.