Principle of operation
Microprocessor regulator
ST-22,24,30,80
is designed for controlling the
central heating boiler equipped with air-blow and the central heating water
circulation pump. It keeps the set temperature by means of ventilator. When the
temperature on the stove is lower than 30°C, the controller is in the lighting
function. Then to turn on the controller (the ventilator) you should press the button
manual work
. It will cause turning on the indicator light marked with
manual work
and turning on the ventilator. This function will be turned on (active) until the
temperature on the stove reaches the set temperature. Repeated pressing this
button will cause turning off the controller from the lighting function (to manual
work). When the controller reaches the set temperature it will change to the back-
up mode. In this mode the work of controller consist in turning on the air-blowing
with the frequency that depends on users’ settings – that is the kind of the fuel
being burned in the boiler.
The set temperature function
The set temperature it is the demanded temperature on the boiler. You can
change the temperature by pressing the button. It means that you increase the
temperature. By pressing the button you fall the temperature while the display
pulsates. After 4 seconds on the display there is shown the temperature on the
boiler.
The functions of the controller
The controlling of the revolutions function can be activated by pressing the
option button. The diode of “revolutions control” is switching on. This function
controls the ventilator’s work rate. Range of adjustment is from 1 to 6 (it can be
said that these are ventilator’s gears). The biggest the gear is, the faster the
ventilator is working. The first gear – it is a minimum speed of the ventilator and 6
th
gear is a maximum speed of the ventilator.
To change the range of ventilator’s gears, press the button and
The
air-blowing work
function it is the time (seconds) of ventilator’s work. It is
automatically turned on when it reaches the set temperature and after the time of
burning break.
The
blower’s speed
is depended on setting of the controlling of the revolutions
function. This function prevents from extinguishing of the boiler.
The air-blowing break function – it is the time (minutes) when the ventilator is
turned off.
The break between ventilator’s work is automatically turned on after
reaching the set temperature. This function prevents from extinguishing the boiler.
START/STOP
Button
MENU
(start stop) is designed to turning the ventilator on and off
during continual controller's work. If the boiler reaches the temperature over 30°C
and it doesn't reach the set temperature, then the button functions as START -
STOP. Using this function you can switch the ventilator on or off during its work. It
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