eZFC-424R4

eZFC enteliZONE Fancoil Controller by Delta Controls
The eZFC-424R4-24 is a native BACnet™ configurable controller optimized for fan coil
applications. The eZFC features line voltage relays for direct switching of fan motor
loads eliminating the need for external relays.
The eZFC communicates using BACnet MS/TP on its RS-485 main LAN port. It also has
a RS-485 subLAN port for the optional addition of a BACstat smart network sensor.
Application

The eZFC-424R4 covers a wide range of fan coil configurations including multispeed fan control, 2 pipe or 4 pipe systems with analog, tri-state, binary or thermal valve actuator(s).

The eZFC-424R4 comes pre-loaded with a simple to configure factory algorithm.

Features
  • Native BACnet firmware allows easy integration into any BACnet system
  • Local scheduling, trending and alarming support
  • Easy to configure factory algorithm covering common fan coil configurations
  • 3 interlocked line voltage relays for direct control of multi-speed fans plus 1 line voltage auxiliary relay
  • 4 TRIAC outputs for tri-state, binary or thermal valve actuation
  • 2 Analog outputs for analog valve actuation
  • Service port for convenient field access
  • Firmware upgrade and database load/save over the network
  • Screw or DIN rail mountable
BACnet Device Profile

BACnet Application Specific Controller (B-ASC)

Inputs
4 Universal Inputs (12bit), software configurable for:
0-5VDC
0-10VDC
10 KΩ Thermistor
Dry Contact (using 10K setting)

Outputs
3 interlocked relays for fan speed control
120VAC: 5.8 FLA / 34.8 LRA
240VAC: 2.9FLA / 17.4 LRA
277VAC: 2.4 FLA / 14.4 LRA

1 SPST NO Auxiliary Relay
277 VAC, 10A (resistive)

4 TRIAC outputs
24VAC, 0.5A max (each)
(Switching external power)

2 Analog outputs
0-10VDC @ 20mA (each)

Technology
ARM Cortex M3 CPU

Communication Ports
BACnet MS/TP RS-485 Main LAN @ 38400 or 76800 bps (default).

RS-485 Sub Lan:
LINKnet @ 76800 bps (for addition of BACstat smart network sensor)

Device Addressing
Set via DIP switch, or software

Connectors
Screw-type terminal connectors on baseplate
Relay Terminals 28-35 Class 1
All other Terminals Class 2

Wiring Class
NEC Class 1 (relay terminals 28-35)
NEC Class 2 (all other terminals)

Power
24VAC, 50/60Hz
100VA (15VA excluding power out loading.)

Ambient
0° to 55°C (32° to 131°C)
10—95% RH (non-condensing)

Dimensions
15.0 x 12.5 x 4.0 cm (5.9" x 4.9" x 1.6")

Mounting
35mm DIN rail or screw mount
Enclosure Protection Rating
IP30

Compliance
CE-EMC Directive 89/336/EEC
FCC Class B

Listings
C-UL
UL 916
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