Tech Controllers ST-53.4, User Manual

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or legionella autostart will be activated (depending on the selected mode). Reminder/autostart can be set to a maximum of 99
days (factory setting 10). In the case of setting value 0, the reminder will be disabled.
ADDITIONAL TEMP. DISPLAYING
After activating this option, additional temperatures will be displayed on the main screen: control temperature, exterior
temperature, evaporator's temperature, additional temperature.
EDITING PHONE NUMBER
By means of this setting, you can edit the service number that is displayed in the SOFTWARE NFORMATION user menu.
TANK CAPACITY
The function is used to select the tank capacity (200, 270 or 300 liters). Under the factory setting, displaying of the tank capacity
is off.
ERASE CONTROL TEMPERATURE ALARM
The parameter is closely related to the EMERGENCY TEMPERATURE function. The safety lock can be deleted only by the heat
pump manufacturer's service staff or by a certified installer/maintainer.
SERVICE CODE CHANGE
Using this function, you can change the access code to the service menu.
FACTORY SETTINGS
The controller is initially configured for operation. However, it should be adjusted as necessary. The factory settings can be
restored at any moment. By activating the factory settings option, all the user's settings of the heat pump are lost and replaced
by the settings saved by the controller's manufacturer.
USB TEST
Function intended for service workers. It allows the USB input in the controller to be tested.
MANUFACTURER'S MENU
This option is available only for the controller's manufacturer.
7 SOFTWARE UPDATE
In order to install new software, disconnect the controller from the power supply. Insert the memory stick with new software into
USB port and connect the controller to the power supply. A single sound signal means that the software update process has
started.
NOTE:
Software update must be conducted by a qualified fitter. Once the process is completed, factory settings are restored.