SECTION 6 – OPERATION
FORM 155.32-ICOM2.EN.UL
ISSUE DATE:1/10/2018
112
JOHNSON CONTROLS
SETTING SCREEN
Figure 55 -
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, manual purge, and purge route)
language (in this case, Japanese, English and Chinese) 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 remotely 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
Set Point (Display):
the setpoint of the chilled/hot water 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 automatically stop and the temperature at which the chiller-heater will
automatically restart
If you press the
LOCAL
button, the entered base temperature corresponds to the present
target temperature. Its temperature is shown in Set Point.
If you press the
REMOTE
button, the setting characteristics of the remote Setpoint 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
Setpoint setting signal (4-20 mADC). See the Setpoint figures below for more information.
LD27811
