JOHNSON CONTROLS
105
SECTION 6 – OPERATION
FORM 155.30-ICOM2.EN.UL
ISSUE DATE: 12/21/2018
6
The Main Screen displays the equipment status (chiller
start or stop, operating, pumps ON or OFF, purge pump
ON or OFF, and chilled and cooling water pumps ON
or OFF). Also, the operating status of the various
modes of chiller operation.
OPERATING STATUS
On the upper left of the screen below the
LOCAL
and
REMOTE
buttons is a list of options. Each has a lamp
to indicate on or off for the following:
•
Startup:
Lights if the chiller is ready to start.
Light is off if the chiller is stopping or if it is not
ready to start.
•
Temp. Control:
Light is lit if the temperature
control of the microcomputer panel changes to
RUN status. Turns off if the chiller stops.
•
Thermo OFF:
Lights if the chilled water tem-
perature falls to the automatic stop temperature.
Turns off when the temperature rises enough to
allow an automatic restart.
•
Load Limit:
Light is lit if the load restriction ac-
tivates due to the cooling water temperature, re-
frigerant temperature, or generator temperature or
pressure is higher than the set point. Light turns
off when the load restriction is removed.
•
Dilution:
Light is lit during the dilution operation
after the chiller stops. It turns off when the dilu-
tion operation is complete.
Set Point:
The set point of chilled water leaving tem-
perature is shown on the left of the screen.
The system illustration lights (lines fill in) when the
system is operating.
MAIN SCREEN
LD27805_UL
FIGURE 47 -
MAIN SCREEN
