Tech Controllers ST-53.4, Руководство пользователя

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6 CONTROLLER FUNCTIONS - SERVICE MENU
To launch the controller's service menu, enter the four-digit access code. When necessary, this code can be changed to another
one in the service menu. The service menu is operated in the same way as the main menu
– after entering the service menu, the
user sees a review of cards with particular functions.
MANUAL OPERATION
After launching MANUAL OPERATION , the user needs to go to the main screen item, where, by clicking on the display, the selected
device will appear on the system diagram and can be switched on/off in order to verify correct operation.
NOTE:
After 5 minutes of idle time, manual operation will switch off automatically.
DEFROSTING
The defrosting process is preceded by the presence of several factors. When exterior temperature falls below the threshold value
(
EXTERIOR LIMIT TEMPERATURE ), the controller checks how long the compressor is operating.
If the specified time of the compressor's operation elapses, the controller checks the defrosting activation delta value (the
difference between exterior temperature and the evaporator's temperature).
Service
menu
Manual operation
Defrosting
Minimum operation temperature hystersis
External temperature waiting time
Heater operation below minimum operation temperature
Additional heating source
Parameters of additional heat source
Tank set temperature hysteresis
ECO-ECO+ Threshold temp.
ECO-ECO+ Threshold hysteresis
Installation security
Emergency temperature
Compressor delay
Minimum compressor stoppage time
High pressure switch
Low pressure switch
Legionella
Additional temp. displaying
Editing phone number
Tank capacity
Erase control temperature alarm
Service code change
Factory settings
USB test
Manufacturer menu