Carrier’s Fan Coil Open Controller is an integrated component of a Carrier fan coil unit. The Fan Coil Open controller continuously monitors and regulates fan coil operation with reliability and precision. This advanced controller features a sophisticated, factory-engineered control program that provides optimum performance and energy efficiency. The Fan Coil Open controller also features plug-and-play connectivity to the Carrier i-Vu Building Automation System.
For added flexibility, the Fan Coil Open controller is capable of stand-alone operation, or it can be integrated with any Building Automation System utilizing the BACnet protocol.
Network Port
EIA‑485 port for BACnet MS/TP communications
Baud rate selectable via DIP switches
Comm Option Port
For future LON option card
Local Access Port
For system startup and troubleshooting (115.2 kbps)
Rnet Port
For Carrier communicating room sensors and Carrier touchscreen user interface
Binary Inputs (2)
Remote Occupancy Contact / Fan Status
Condensate Overflow
Analog Inputs (4)
RH / CO₂ (0–5 VDC)
Supply Air Temperature (10k thermistor)
Room Air Temperature / T55 (10k thermistor)
Changeover Switch (dry contact) or Changeover Sensor (10k thermistor)
(10‑bit A/D resolution)
Binary Outputs (5)
High‑Speed Fan
Medium‑Speed Fan
Low‑Speed Fan
Two‑Pipe Valve / Heating Valve / Electric Heat Stage 1
Cooling Valve / Electric Heat Stage 1 (Type 5 Heat & Two‑Pipe)
(Relay contacts rated 1A max @ 24 VAC/VDC, normally open)
Analog Outputs (3)
Outside Air Damper
Two‑Pipe / Heating Valve
Cooling Valve
(0–10 VDC, 5 mA max, 8‑bit resolution using filtered PWM)
Electrical Protection
Real-Time Clock
10-year lithium CR2032 battery with minimum of 10,000 hours of trend data retention
LED Status Indicator
| Document Name | Description | Document Type | Language | Action |
|---|---|---|---|---|
| Product Data | i-Vu Open Fan Coil Open Product Data Sheet | English | Download | |
| Installation | AppController Installation and Startup Guide | English | Download | |
| Controls | i-Vu Open Roof Top Unit / Fan Coil / Unit Vent Guide Specification | English | Download |
It is designed for Carrier fan coil units, supporting hot water, steam, electric heat, chilled water, DX cooling, and ventilation control.
Yes. It supports BACnet MS/TP, allowing integration into open building automation systems.
Yes. With its on‑board clock, sensor support, and occupancy input, it can operate in stand‑alone mode.
Through demand limiting, automatic fan speed control, optimal start routines, and advanced zone‑level control.