JOHNSON CONTROLS
101
SECTION 6 – OPERATION
FORM 155.32-ICOM1.EN.GB
ISSUE DATE: 10/13/2017
6
HOURLY OPERATION HISTORY SCREEN
LD20279
FIGURE 37 -
HOURLY OPERATION HISTORY
LD20279
To view the Hourly Operation History screen, press the
Hourly Operation
button in the History Menu screen
section of the Data screen.
The Hourly Operation History screen shows opera-
tional information for the last 12 hours and contains
the following fields of information:
The heading of the screen includes the X time ago and
the Measured Date and Time. Buttons are available to
select measurements for up to 12 times ago, to cover
the 12 hour period.
The following information displays:
Operation:
operation status of the chiller-heater
Operation Method:
selected operation method (local
or remote)
Solution Pump:
operation status of the solution pump
Refrigerant Pump:
operation status of the refrigerant
pump
Burner Fan:
operation status of the burner fan
Operation Mode:
selected operation mode (cooling
or heating)
Combustion:
status of the combustion (ON or OFF)
Operation Hours:
how many hours the chiller-heater
has started using the
OPER.
button or a remote start
signal
Operation Freq.:
how many times the chiller-heater
starts and stops
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 the auto-
matic purge has been performed
The Chilled/Hot water section of the screen shows you
the following information:
Inlet Temperature:
temperature of the chilled/hot wa-
ter measured as it enters the evaporator.
Outlet Temp.:
temperature of the chilled/hot water
measured as it leaves the evaporator. The Cooling Wa-
ter section shows you:
