JOHNSON CONTROLS
107
SECTION 6 – OPERATION
FORM 155.32-ICOM1.EN.GB
ISSUE DATE: 10/13/2017
6
ALARM HISTORY SCREEN
LD20281
FIGURE 40 -
ALARM HISTORY SCREEN
LD20281
View the Alarm History screen after you press the
Alarm
button in the History Menu section of the
screen.
The Alarm History screen shows alarm information
for the last alarm and up to six previous alarms. The
alarm section contains the following fields of informa-
tion:
Alarm Name:
name or type of alarm
Measured Date and Time:
date and time of the alarm
Operation:
operation status of the chiller-heater
Operation Method:
selected operation method
Solution Pump:
operation status of the solution pump
Refrigerant Pump:
operation status of the refrigerant
pump
Burner Fan:
operation status of the burner fan
Combustion:
status of the combustion (ON or OFF)
Operation Hours:
total operation hours
Operation Freq.:
how many times the chiller-heater
has started using the
OPER.
button or a remote start
signal
Failure Frequency:
how many times the chiller-heater
has had a failure alarm
Alarm Frequency:
how many times an alarm has been
triggered for the chiller-heater
Auto Purge Frequency:
how many times an automat-
ic purge has been performed
The Chilled/Hot water section of the screen shows you
the following information:
Inlet Temperature:
temperature of the hot or chilled
water measured as it enters the evaporator
Outlet Temp.:
temperature of the chilled/hot water
measured as it leaves the evaporator
The Cooling Water section shows you:
Inlet Temperature:
temperature of the cooling water
measured as it enters the absorber.
