ST – 480
III.14. Language selection
Using this function, the user selects the language in which the
controller will be operated.
III.16
Room controller unit
This function allows to programme the operation of the room
controller as follows:
Off – the state of the room controller has no impact on other
settings
Boiler – after the room controller has indicated that the preset
temperature is reached the preset boiler temperature will be
reduced (detailed setting - see Item II.15)
Central Heating pump - after the room controller has indicated that
the preset temperature is reached the central heating pump will be
shut off (detailed setting - see Item II.15)
Room controller – the function allows to select the controller type
connected to ST-480 controller to operate with the above selected
unit. Two options are available:
two-state (standard controller)
TECH controller
After TECH Controller option is enabled a letter "P" appears in the
upper part of the display in the main screen of the controller. A flashing
letter "P" indicates that the temperature in the room is too low. As soon
as the required room temperature is reached the letter "P" stops flashing
and stays on
If both controllers are selected the room control temperature
reduction will be active only after both controllers have sent a signal
confirming that the preset room temperature has been reached.
III.17
Display contrast
Allows changing the display contrast settings.
IV. Service menu
A 4-digit code has to be input to enter service functions of ST-480
controller. The code is in possession of Tech Company.
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