Technical Specifications - Metasys - LIT-12011827 - Field Device - 6.0

Fan Coil Unit FCU16 Controller Product Bulletin

Document type
Product Bulletin
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Table 1. FCU16 Controller

Product Code Number


Supply Voltage

100 VAC 50/60 Hz

Power Consumption

30 VA maximum

Note: VA rating does not include any power supplied to the peripheral devices connected to Binary Outputs (BOs), which can consume up to 20 VA for each BO; for a possible total consumption of an additional 80 VA (maximum).

Ambient Conditions

Operating: 0 to 50°C (32 to 122°F); 10 to 90% RH noncondensing

Storage: -40 to 80°C (-40 to 176°F); 5 to 95% RH noncondensing

Controller Addressing

DIP switch set; valid field controller device addresses 4–127 (Device addresses 0–3 and 128–255 are reserved and not valid field controller addresses.)

Communications Bus

BACnet® MS/TP, RS-485:

3-wire FC bus between the supervisory controller and field controllers

4-wire SA bus between field controller, network sensors and other sensor/actuator devices, includes a lead to source 15 VDC supply power (from field controller) to bus devices.


H8SX/166xR Renesas® 32-bit microcontroller


1 MB Flash Memory and 512 KB Random Access Memory (RAM)

Input and Output Capabilities

2 - Universal Inputs: Defined as 0-10 VDC, 4-20 mA, 0-600k ohm, or Binary Dry Contact

4 - Binary Inputs: Defined as Dry Contact Maintained or Pulse Counter/Accumulator Mode

4 - Binary Outputs: Defined as 100 VAC Triac BO

3 - Relay Outputs (Three-Speed Fan Binary Output): Rated as 3 A Motor Load 100–240 VAC

1 - LED Output: Rated as 18 VDC nominal open-circuit; 15 mA maximum short-circuit

Analog Input

15-bit resolution


Input/Output: Pluggable Screw Terminal Blocks

SA/FC Bus and Supply Power: 4-Wire and 3-Wire Pluggable Screw Terminal Blocks

SA/FC Bus Port: RJ-12 6-Pin Modular Jacks


Horizontal on single 35 mm DIN rail mount (preferred), or screw mount on flat surface with three integral mounting clips on controller

Dimensions (Height x Width x Depth)

150 x 164 x 42.5 mm (7-1/2 x 5-7/8 x 1-11/16 in.) including terminals and mounting clips

Note: Mounting space requires an additional 50 mm (2 in.) space on top, bottom, and front face of controller for ventilation and wire terminations.


0.5 kg (1.1 lb)

The performance specifications are nominal and conform to acceptable industry standard. For application at conditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.