Delta DFC-304R3-240 Installation Manual
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Delta DFC-304R3-240 Installation Manual

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Product Description
The DFC-304R3-240 Fan Coil Controller is a
line powered, fully programmable (via GCL+)
Native BACnet Application Controller that
communicates using the BACnet MS/TP
protocol. Direct 240 VAC line voltage terminal
connections are provided for one, two, or three
speed fans (up to 1 HP).
The binary model, with additional 4 triac
outputs, covers a wide range of Fan Coil Unit
applications, including two and four pipe fan
coils. And room temperature can be a
standard 10K sensor or a BACstat II
connected via a secondary LINKnet network
and 24 VAC power out connection.
Important Information
This controller has terminals for connecting 240VAC (Class 1, Line Voltage). The terminals are
safety rated, however this controller may have to be mounted in an enclosure if it is not
mounted inside the FCU. Check local electrical codes.
Package Contents
Product: DFC-304R3-240 (Rev. 2.1)
DFC-304R3-240 Installation Guide
Related Documents
Delta Controls Wiring Guidelines
DSC/DSC Release Notes for related Firmware
Delta Controls General System Description (Delta Products System Architecture Description)
I
NSTALLATION
DFC-304R3-240 Rev 2.1 Installation Guide
G
UIDE
Document Edition 1.1
Document Edition 1.1

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Summary of Contents for Delta DFC-304R3-240

  • Page 1 FCU. Check local electrical codes. Package Contents  Product: DFC-304R3-240 (Rev. 2.1)  DFC-304R3-240 Installation Guide Related Documents  Delta Controls Wiring Guidelines  DSC/DSC Release Notes for related Firmware  Delta Controls General System Description (Delta Products System Architecture Description) Document Edition 1.1...

  • Page 2: Board Layout

    Delta Controls Cautions or Warnings Personal injury/loss of life may occur if procedures are not performed as specified. If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

  • Page 3: Device Configuration

    SYSTEM configured the same. SUBNET System/Subnet: The DFC-304R3-240 is a Subnet device only. It cannot be configured as a System device. Derived Network Addressing The DNA jumper comes ON by default. This allows the device to automatically configure a BACnet device address.

  • Page 4: Wiring General

    Network Communication The controller communicates on Twisted Pair Ethernet 10-BaseT using BACnet IP and BACnet over Ethernet, or on an RS-485 LAN using the BACnet MS/TP protocol. Refer to Delta Controls Wiring Guidelines for further details. Page 4 of 8...

  • Page 5: Input And Output Wiring

    LINKnet networks that have only 1-2 devices, and have less then 100 ft of cable length do not require network terminators. Input and Output Wiring Inputs and outputs on the DFC-304R3-240 controller follow the same general wiring connection diagrams as other Delta Controls products. Refer to separate documentation for additional details. Input Configuration The input must be configured to accept the signal used by the input device.

  • Page 6: Fan Speed Relay Operation

    Delta Controls Output Configuration Triac Outputs DFC outputs switch INTERNALLY sourced 24VAC only. They cannot switch an external 24Vac power source. The triac outputs are intended to drive a 24VAC tri-state or two-position valve actuator. In the default FCU database, OP1 and OP2 are used to position a tri state heating valve actuator, and OP3 and OP4 are used for a tri state cooling valve actuator.

  • Page 7: Product Specifications

    DFC-304R3 Rev 2.1 Installation Guide.doc Network MS/TP (RS485) The green LED flashes to indicate when the device is transmitting (NET1) Communication out the port, and the red LED flashes to indicate when the device Status Indicators is receiving data through the port. Network MS/TP (RS485) The green LED flashes to indicate when the device is transmitting...
  • Page 8 Compliance CE – EMC Directive 89/336/EEC & IEC 61010-1 FCC – Class B ICES – Class B Accessories TRM-768 Delta Network Terminator for MS/TP RPT-768 Delta Network Repeater for MS/TP Model Number DFC-304R3-240 Page 8 of 8...

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