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Fan Coil Units

OSS-FC

The One Sightsolutions Fan Coil Unit controller incorporates a configurable fan coil algorithm, variable three speed fan control and either modulating or digital heating and cooling outputs.

The OSS-FC Unit works in conjunction with the OSS-TDF and OSS-TDU thermostats.

Power options

Available in 24Vac and 240Vac

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Features

Control Features

Inputs:
– 4 analog inputs (0-10Vdc or 10K Ohms)
– 3 dedicated analog sensor inputs
– 4 dedicated digital sensor inputs

Outputs:
– 4 analog outputs (configurable)
– 4 TRIAC outputs (configurable)
– 3 fan outputs
– Up to 4 digital outputs (configurable)

• Real Time Clock (RTC) with 24 hour backup

• Congurable PI (Proportional-Integral) function

• Selectable proportional control band and dead band

• 3-speed or ECM (analog) fan control

• Selectable internal or external temperature sensor (10K Ω)

• Change over by contact or external temperature sensor

• Freeze protection

Increased Flexibility

• BACnet scheduler

• Firmware upgradeable via BACnet

• Copy and paste conguration via BACnet

• COV (change of value)

• BACnet or Modbus communication protocol selectable via thermostat menu

• Select direction on analog outputs

• Select thermostat’ s default display

• More outputs: 4 Triac and 4 Analog outputs

• And more…

  • Fully configurable application specific controller
  • Connects to room thermostat via 3 wires
  • Native BACnet MS/TP or Modbus communication (selectable)
  • 24 or 240Vac
  • Up to 11 inputs and 15 outputs

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Better manage your HVAC with our stock of programmable Fan Coil Units supporting a range of communications, including BACnet, Modbus and Modbus MSTP.