Product/Service

Micro III Condenser Control

Source: FES Systems Inc., part of GEA Refrigeration Group
Maintains stable refrigeration system discharge pressure by providing automatic cycling of the fans and water pumps of evaporative
Maintains stable refrigeration system discharge pressure by providing automatic cycling of the fans and water pumps of evaporative or air cooled condensers. Many other features are provided to compliment and enhance this control.

Discharge Control Features

  • Controls up to 32 devices
  • single speed fans
  • double speed fans
  • water pumps
  • variable speed fans (maximum of four analog outputs)
  • One panel can control two separate discharge levels
  • Discharge pressure setpoint can be "fixed" by operator entry or "floating" based on ambient wet-bulb temperature
  • Control "steps" are incremented when the pressure exceeds the setpoint by a "next step" pressure differential (steps are decremented by a "previous step" differential)
  • A condenser setup matrix allows the operator to select and change the following at anytime:
  • the run status for each device at each step. Entries include stop/run, stop/high/low (for double-speed fans), or stop/auto/hold (for VDF's)
  • the "soak" time for each step
  • the next and previous step delay time for each step
  • the high-to-low spin down time for double speed fans
  • the proportional, integral, and derivative constants for variable speed fans
  • The condenser setup matrix allows for:
  • an infinite combination of device starting sequences
  • multiple devices to be started or stopped on the same step
  • manual override of automatic stepping via hold, load "one step" or unload "one step push buttons
  • Run inputs can be configured to monitor auxiliary starter contacts
  • Run time recorded for each device

    FES Systems Inc., part of GEA Refrigeration Group, 3475 Board Road, PO Box 2346, York, PA 17405. Tel: 717-767-6411; Fax: 717-764-3627.