Hot Gas Re-Heat Valve On/Off:................................. 15
THE ZONE CONTROLLER......................4
Modulating Re-Heat Valve:.......................................... 16
Filter:..............................................................................16
SPECIFICATIONS ................................5
Heating and Cooling – (1 and 2 Compressor Stages): 16
The heating will be enabled whenever:....................... 17
CONTROLLER COMPONENTS...............6
The cooling will be enabled whenever: ...................... 17
LED Indicators..............................................................6
DIP and Rotary Switches...............................................7
Reversing valve:.............................................................17
Jumpers and settings......................................................8
Supplemental Electric Heating Stage: .........................17
LONWORKS® CARD OPTION...............9
Discharge Air Temperature: ........................................ 18
High Discharge Air Temp:.......................................... 18
WATER TO AIR OPERATION..............10
Low Discharge Air Temp:..........................................18
Discharge Air Sensor Failure:..................................... 18
General Description.......................................................10
Discharge Air Control................................................... 18
Key Features and Benefits.............................................10
Single Outside Air Temperature (OAT) Reset: .......... 19
Multiple Outside Air Temperature (OAT) Reset:.......19
Inputs ..............................................................................11
Leaving Water Temperature:....................................... 20
Outputs............................................................................11
High Leaving Water Temp: ........................................ 20
Low Leaving Water Temp:......................................... 20
Leaving Water Sensor Failure: ................................... 20
Control & Status Parameters and Alarms...................11
Control.........................................................................11
Status...........................................................................12
WATER TO WATER OPERATION........25
Alarms.........................................................................12
GENERAL DESCRIPTION...................27
SEQUENCE OF OPERATION ...............13
Inputs .......................................................................... 27
Outputs........................................................................ 27
Run Conditions: .............................................................13
Occupied Mode ...........................................................13
Unoccupied Mode (night setback):..............................13
CONTRO
L & STATUS PARAMETERS
AND ALARMS.....................................28
Zone Temperature .........................................................14
Status and Control....................................................... 28
High Zone Temp: ........................................................14
Alarms ........................................................................28
Low Zone Temp:.........................................................14
Zone Sensor Failure: ...................................................14
SEQUENCE OF OPERATION...............29
Zone Setpoint Adjust:....................................................14
Run Conditions:.............................................................29
Zone Unoccupied Override:..........................................14
Occupied Mode........................................................... 29
Unoccupied Mode (night setback):.............................29
Freeze Protection: ..........................................................15
Auto Changeover Mode.............................................. 29
Digital Input Mode...................................................... 30
Fan:..................................................................................15
BAS Mode..................................................................30
Constant Volume.........................................................15
VAV............................................................................15
Lead - Lag Compressor operation ...............................31
Compressor 1 Runtime: .............................................. 31
Zone Humidity: ..............................................................15
Compressor 2 Runtime: .............................................. 31
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