CONTROLLER
CHILLERS and HEAT PUMPS Air-Water
9
USM_CONTROL_KRONO 3-MINI KRONO 3_208064_220501_EN
OPERATION –User menus
Setpoints menu
Select and press “Enter”.
The temperature setpoints can be modified for both operation modes.
Operation modes:
The main two operation modes are the Cooling mode and the Heating mode. Both modes have three operation levels
that apply a compensation to the values of the temperature setpoints.
Comfort Mode: Standard mode that does not apply any compensation to the Setpoint value.
Pre-Comfort Mode: A differential (Offset) is applied to the temperature setpoints. This differential is positive for the
Cooling mode and negative for the Heating mode.
Economy Mode: Another differential is applied to the temperature values. This differential is positive for the Cooling
mode and negative for the Heating mode.
The Setpoint value that we want to modify and the actual active value will be displayed on the screen. If the time
Scheduler is active, the modified Setpoint value will be displayed too with the applied compensation after adding the
corresponding offset (Comfort, Economy, Pre-comfort).
Modification of the cool and heat setpoints (without compensation). If the scheduler is active, the compensated value of
the setpoint will be displayed acccording to the active mode.
Indication of the target outdoor temperature from Cool to Heat and vice versa.
Values that shall be compensated according to the different modes of the time schedule. The value will be added to the
Cool setpoint or will be deduced from the Heat setpoint depending on whether the cooling mode or the heating mode is
active.
INFO menu
Select and press “Enter”.
Access to various graphical displays including information about the different components of the system:
Water circuit
Circulation pumps
Circuit pressures
Compressors
Fans
Electrical resistances
Defrost operations
Controller
