Johnson Controls LX Series User Manual

LX Series Unit Ventilator Controller User's Guide66
These settings can be entered on the Alarm screen of the Unit Ventilator Controller
configuration wizard (Figure 26). Table 14 describes the configuration variables
for user-set alarms.
Setting up the Unit Ventilator Controller
This section provides you with step-by-step instructions for setting up the Unit
Ventilator Controller using the configuration wizard. The definition of the terms
used in the configuration wizard and a short explanation of how to use each section
of the configuration wizard are provided.
Each screen of the configuration wizard is discussed under its own heading (for
example, Heating-Cooling Configuration) and introduced by a large graphic of
that screen.
The following information is in the same order as it appears in the Unit Ventilator
Controller configuration wizard.
Persistent Network Variables
Note: Read this section about how to make network variables persistent. This
information could save you a great deal of time.
Table 14: Configuration Variables for User-Set Alarms
Monitored
Point
Alarm
Type
Setpoints Bit
#
Programmatic
Name
Setpoints/Delta
Location
Time Delay
Location
Space
Temperature
Deviation Active heating
setpoint-offset
39 LowSpaceTemp UCPTspaceTemp
AlarmDelta Field
UCPTspaceTemp
AlarmTime Field
Active cooling
setpoint+offset
40 HighSpaceTemp
Discharge Air
Temperature
Low Low limit setpoint 41 LowDischargeTemp UCPTsupplyTempA
larmLoLimit Field
UCPTsupplyTemp
AlarmTime Field
High High Limit
setpoint
42 HighDischargeTemp UCPTsupplyTempA
larmHiLimit Field
Return Air
Temperature
Deviation active heating
setpoint-offset
43 LowReturnTemp UCPTreturnTemp
AlarmDelta Field
UCPTreturnTemp
AlarmTime Field
active cooling
setpoint+offset
44 HighReturnTemp
Mixed Air
Temperature
Low low limit setpoint 45 LowMixedAirTemp UCPTmixAirTemp
Alarm LoLimit Field
UCPTmixAirTemp
AlarmTime Field
Space
Humidity
Deviation setpoint - offset 46 LowSpaceRH UCPThumidity
AlarmDelta Field
UCPThumidity
AlarmTime Field
setpoint + offset 47 HighSpaceRH
CO
2
Concentration
High CO2 Limit +
offset
48 HighCO2Level UCPTCO2Alarm
Delta Field
UCPThumidity
AlarmTime Field
Fan State
Digital Fan input differs
from state of fan
output
49 FanStateMismatch UCPTFanCurrent
Threshold
UCPTfanAlarm
Time
Auxiliary
Alarm Input
Low lower than low
limit setpoint
50 AuxiliaryLowAlarm UCPTauxiliary
AlarmLoLimit field
UCPTauxiliary
Alarmtime field
High higher than high
limit setpoint
51 AuxiliaryHighAlarm UCPTauxiliary
AlarmHiLimit field

Johnson Controls LX Series Specifications

General

Brand	Johnson Controls
Model	LX Series
Category	Air Conditioner
Language	English