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ENVISION CONSOLE 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
Envision 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 con-
trol 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
allowed +/- 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 communica-
tion. 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.
Envision Console Controls
Main FX 10 Board