Setting screen
Figure 64: Setting screen
This screen displays control parameters (setting method and each setting parameter), operation
switch (forced dilution, refrigerant pump, purge mode, and manual purge, and other applicable
gauges and pumps), 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 chilled water and hot water.
Remote Setting Diff.
: The setting range with external 4~20 mADC signal
Set Point (Display):
The set point 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 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 set point figure on the next page for more information.
Model YHAU-CGN/H-CXR(M)Double Effect Direct Fired Small Absorption Chiller-Heater
128
