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SECTION 6 – OPERATION
FIGURE 42 - SETTING SCREEN
This screen displays control parameters (setting
method and each setting parameter), valve operation
(control valve mode auto / manual, and valve position
setting), operation switch (forced dilution, refrigerant
pump, purge mode, and manual purge, etc.) language
(Japanese, English, Chinese, etc.) and date and time
parameters.
Press the SETTING button to access this screen.
CONTROL PARAMETER
The Control Parameter section of the SETTING screen
is used to enter parameters for the cooling and heating
operation, such as target temperature, automatic stop
temperature, and differential to automatic restart.
Setting Method: The LOCAL and REMOTE buttons
control whether the set point is being determined re-
motely or through the Control Center.
Setting Base Temp.: the base set temperatures for
cooling, heating, and residential hot water (RHW).
Remote Setting Diff.: the setting range with external
4~20 mADC signal
114
SETTING SCREEN
Set Point (Display): the setpoint of the chilled/hot wa-
ter leaving temperature
Auto. Stop Temp.: temperature at which the chiller-
heater will automatically stop
Auto. Restart Diff.: temperature difference between
the temperature at which the chiller-heater will auto-
matically stop and the temperature at which the chiller-
heater will automatically restart
If you press the LOCAL button, the entered base tem-
perature corresponds to the present target temperature.
Its temperature is shown in Set Point.
If you press the REMOTE button, the setting charac-
teristics of the remote Set Point are determined based
on the setting base temperature and the remote setting
differential. The actual target temperature is calculated
depending on these settings and the remote Set Point
setting signal (4-20 mADC). See the figure on the next
page for more information.
FORM 155.32-ICOM1.EN.GB
ISSUE DATE: 10/13/2017
LD20138
LD20138
JOHNSON CONTROLS
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