Johnson Controls LSWU User Manual

JOHNSON CONTROLS
205
SECTION 8 – SERVICE
FORM 145.05-NOM7
ISSUE DATE: 10/31/2019
8
TABLE 50 - WARNING DESCRIPTION TABLE
HISTORY
SCREEN
WORDING
DESCRIPTION RESET
SHOW WHEN UNIT
TYPE IS
STATUS
SCREEN
WORDING
FAULT
OUTPUT
TYPE
Wrn-Compr Sys-
tem * Inhibit
See description at the end of this
table
Auto Reset
Wrn-Dirty Filter 1
The lter status input is closed for
greater than or equal to 1 minute
Auto Reset
Dirty lter switch is
Installed
Filter Status
Change
Wrn-Discharge
Prs Sensor *
The discharge pressure for that sys-
tem is out of range for greater than or
equal to 10 seconds
Auto Reset
Press Trans Pkg is
ON for the System
Compressor
System Status
Inhibited
Wrn-Duct Prs
Xdcr
Supply fan output ON, supply fan
status must be running for 5 minutes,
static press current less than or equal
(0.333 X DUCT STATIC PRESS AC-
TIVE SP) for 30 seconds
Auto Reset
UNIT TYPE is VAV
or FLEXSYS
Supply Sys
Status Warning
Alarm
Wrn-Freezestat
Trip
The HW/steam freezestat circuit goes
low (open) but goes high (closed)
within 5 minutes
Auto Reset
Heating System
Type equals HOT
WATER/STEAM
Wrn-High Duct
Pressure 1
The optional duct static high pressure
switch is open for 5 seconds and re-
closes before 60 seconds and this is
the rst trip in a 60-minute time frame
Auto Reset
Duct high static
switch is ENABLED
Wrn-High Duct
Pressure 2
The optional duct static high pres-
sure switch is open for 5 seconds and
re-closes before 60 seconds and this
is the second trip in a 60 minute time
frame
Auto Reset
Duct high static
switch is ENABLED
Wrn-Low Water
Flow
The optional water ow switch input
is open for 5 seconds and the UNIT
MODE is OCCUPIED or UNOCCU-
PIED COOLING
Auto Reset
Water ow switch is
ENABLED
Compressor
System Status
Inhibited
Wrn-Low Water
Temp
The entering Condenser Water
Temperature has fallen below the Low
Limit Temperature for 30 seconds
Auto Reset Always
Compressor
System Status
Inhibited
Wrn-Outside Air
RH
Outside Air Temp greater than or
equal to 32.0°F for 10 seconds, Out-
door Air Humidity less than 5% for 10
seconds
Auto Reset
Econo installed
SINGLE ENTHALPY
or DUAL ENTHALPY
Wrn-Return Air
RH
Return Air Temp greater than or equal
to 32.0°F for 10 seconds, Return Air
Humidity less than 5% for 10 seconds
Auto Reset
Econo installed
DUAL ENTHALPY
Wrn-Slab Temp
Sensor
Underoor slab temp sensor is out of
range for greater than or equal to 10
seconds
Auto Reset
UNIT TYPE is
FlexSys and Dew
Point Reset is USER
ENABLED
Alarm
Wrn-Suction Prs
Sensor *
Suction pressure out of range for
greater than or equal to 10 seconds
Auto Reset
Press Trans Pkg is
ON for the System
System Status
Inhibited
Wrn-Under Floor
Rh Sensor
Underoor Air Humidity is less than
5% for greater than or equal to 5
minutes
Auto Reset
UNIT TYPE is
FLEXSYS and Dew
Point Reset is USER
ENABLED
Alarm
* Can be A-F compressors.

Johnson Controls LSWU Specifications

General

Brand	Johnson Controls
Model	LSWU
Category	Chiller
Language	English