Regulator Functionality; Ii.a) Main Page - TECH ST-85 User Manual

ST-85 – USER'S MANUAL
In case of voltage loss, the regulator ceases to operate. When power is
restored, the controller returns to operation with previously set parameters
using its built-in memory. Lack of voltage does not cause the stored
parameters to be lost.
II. Regulator Functionality
This chapter describes regulator functionality, how to change settings and
navigate in the menu with the
boiler is currently in, the display will show boiler operational parameters. The
given mode is selected by the user.

II.a) Main Page

During normal operation, the LCD display shows the Main Page containing
the following:
Boiler temperature (to the left of the display).
●
Setpoint temperature (to the right of the display).
●
Fan stop. After manually stopping the fan while in the duty mode, the star
●
symbol ( ) will appear in the down right corner.
Operation Mode. In the up right corner, the corresponding letter of the
●
operation mode is displayed. Depending on the operation mode, the
corresponding symbol is displayed:
– house heating,
– parallel pumps,
Pressing the encoder will move you to the main menu. The display
shows two options of the menu. To select a different option, turn the encoder
knob.
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encoder
(knob). Depending on the mode the
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C.H. C.H. Setpoint Setpoint
– water heater priority,
– summer mode.
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