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RC SERIES INSTALLATION MANUAL
Optional FX10 Control
The optional FX10 control provides unparalleled capability
in several areas including performance monitoring, zoning,
humidity, energy management, and service diagnosis, and then
communicates it all thru standard DDC protocols like N2, Lon and
BACnet (MS/TP @ 19,200 Baud rate).
The most unique feature is integrating the FX10 into the RC
Series as both the heat pump and DDC controller providing both
a cost advantage and providing features not typically found on
WLHP controls. This integration allows heat pump monitoring
sensors, status and service diagnosis faults to be communicated
thru the DDC direct to the building automation system (BAS),
giving building supervisors detailed and accurate information on
every piece of equipment without removing an access panel.
FX10 Advanced Control Overview
The Johnson Controls FX10 board is specifically designed for
commercial heat pumps and provides control of the entire unit
as well as input ports for Open N2, LonTalk, BACnet (MS/TP @
19,200 Baud rate) communication protocols as well as an input
port for a user interface. The user interface is an accessory item
that can be used to aid in diagnostics and unit setup. A 16-pin
low voltage terminal board provides terminals for common field
connections. The FX10 Control provides:
Operational sequencing
•
High and low-pressure switch monitoring
•
General lockout
•
Water Coil Low Temperature (Freeze Sensing)
•
Condensate overflow sensing
•
Lockout mode control
•
Emergency shutdown mode
•
Random start and short cycle protection
•
Short Cycle Protection
Allows a minimum compressor “off” time of four minutes and a
minimum “on” time of two minutes.
Random Start
A delay of 1 to 120 seconds is generated after each power-up to
prevent simultaneous startup of all units within a building after the
release from an unoccupied cycle or power loss.
Emergency Shutdown
A field-applied dry contact can be used to place the control into
emergency shutdown mode. During this mode, all outputs on the
board are disabled.
Water Coil Low Temperature (Freeze Sensing) Limit
Field selectable for 15° or 30°F (-9° or -1°C)
Installation Options
Standalone controlled by standard room thermostat
•
Standalone with a Zone Temperature Sensor (must have user
•
interface to change set points beyond the a/- 5°F)
Integrated into BAS by adding communication module
•
Accessory Outputs
Quantity 2. One cycled with fan, other with compressor.
User Interface
4 x 20 backlit LCD.
Optional Plug-in Communication Modules -
(compatible with standard BAS protocols)
Open N2
•
LonTalk
•
BACnet (MS/TP @ 19,200 Baud rate)
•
Display
Requires DLI Card/Kit. Up to 2 displays, either 1 local and 1
remote, or 2 remote. (A 2-display configuration requires identical
displays.) Local display can be up to 3 meters from the controller,
power supply, and data communication. Remote display can be
up to 300 meters from the controller. Remote display must be
independently powered with data communication done via 3 pole
shielded cable.
Controls - FX10
Main FX 10 Board
