TECH ST-85, Руководство пользователя

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ST- 85 – USER'S MANUAL
I.a) Basic Terms
Fire up . The cycle begins when you activate the fire up function in the
controller's menu and is active until the central heating boiler temperature
reaches 40 o C (the default fire-up threshold ), on condition that the
temperature does not drop below this value for 2 minutes (the default fire-up
time ). If these conditions are met, the regulator will switch to the duty mode
and the manual operation symbol on the housing will be deactivated. If the
controller fails to reach parameters required for entering into the duty
mode within 30 minutes from activation of the fire-up function, the " Unable
to fire up" message will appear on the display. In such a case, the fire-up
cycle needs to be restarted.
Duty – once the fire-up cycle is finished, the controller enters the duty cycle .
The duty cycle is the basic functionality of the regulator. The blow is
controlled automatically using the zPID algorithm and the temperature is
close to its setpoint value. In the user menu, fan item will appear in place of
the fire-up function. The fan can be deactivated when needed (e.g. while
feeding fuel). If the temperature rises unexpectedly by more than 5 o C over
the setpoint value, the so-called Supervision Mode is activated.
Supervision Mode – the mode is activated during the Duty Cycle if the
temperature rises by more than 5 o C over the setpoint value. In such case,
the controller is switched from the PID control to manual settings (according
to parameters entered in the Fitter’s Menu) to reduce the temperature of the
circulation water.
Damping – if boiler temperature drops by 2 o C below the fire-up threshold
and fails to rise above this value for 30 minutes (default damping time ), the
regulator will switch to the damping mode . While in this mode, the fan is
deactivated and the display shows " Damping".
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