Installation manual

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PREMIER INSTALLATION MANUAL
FX10 Advanced Control
The Johnson Controls FX10 board is specifi cally de-
signed for commercial heat pumps and provides control of
the entire unit as well as input ports for Open N2, LonTalk,
BacNet 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 fi eld connections. The FX10 Control provides:
Operational sequencing
High and low-pressure switch monitoring
General lockout
Freeze protection
Condensate overfl ow sensing
Lockout mode control
Emergency shutdown mode
Random start and short cycle protection
Short Cycle Protection
Allows a minimum compressor “off” time of four min-
utes 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 fi eld-applied dry contact can be used to place the
control into emergency shutdown mode. During this
mode, all outputs on the board are disabled.
Freeze Protection
Field selectable for 15° or 30°F (-9° or -1°C)
Installation Options
Stand-alone controlled by standard room thermostat
Stand-alone 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
Inputs/Outputs
6 Analog Inputs
12 Digital Inputs
9 Digital Output Relays (or 7 relays & 2 triacs)
Accessory Outputs
Quantity 2. One cycled with fan, other with compressor.
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FX10 Control Operation
(Optional Microprocessor)
User Interface
4 x 20 backlit LCD.
Optional Plug-in Communication Modules -
(compatible with standard BAS protocols)
Open N2
LonTalk
BacNet
Display
Requires DLI Card/Kit. Up to 2 displays, either 1 local
and 1 remote, or 2 remote. (A 2-display confi guration
requires identical displays.) Local display can be up to 3
meters from the controller, power supply, and data commu-
nication. 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.
Control Timing & Fault Recognition Delays
Lead compressor “ON” delay 30 seconds
Lag compressor “ON” delay 60 seconds
(not applicable for single compressor models)
Minimum compressor “ON” time 2 minutes
(except for fault condition)
Short cycle delay 4 minutes
Random start delay 0-120 seconds
High pressure fault <1 second
Low pressure fault 30 seconds
Freeze protection fault 30 seconds
Condensate overfl ow fault 30 seconds
Low pressure fault bypass 2 minutes
Freeze protection fault bypass 2 minutes
Note: Refer to Submittal Data SD1981, Application Guide
AGFX10, or BACnet Protocol Implementation Conformance
Statement for more information.
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Main FX10 Board
(Shown with optional communication card)