7.3
Regulation of heating
Circulating pump and electrical heaters turn on by
command of room thermostat
When boiler reaches set temperature of water in the
system, heaters turn off (with intervals of 3 sec to eliminate
shock to electric power net), and pump continues to work
until room thermometer turns off. Heaters will again turn on
when water temperature fails 2 °C below set temperature
–
if room thermostat requires so. Microprocessor thermo-
regulator measures time of work for each heater, changes
heaters (if there is inactive heater available) after 30 min of
continual work. Such working mode provides equal load of
all heaters and relays, and their life-time is significantly
longer
If relay of pump does not turn on for any reason,
heaters will not too.
When room temperature is reached, microprocessor turns
off heaters and pump, but after 2 min after heaters turn off
– during that time LED diode indicating work of pump will
flash meaning that countdown 2 minutes is in progress after
which time the pump will turn off
7.3.1 Boiler set temperature adjusting
Using buttons
‘‘-’’
or
‘‘+’’
select mod to display set temperature
- LED diode near the sign
„
Set temp
“
is on. Press button
’’SET“
, LED diode near to the
sign „
Set Temp
“
starts to flash,
which means it is possible to increase/decrease given
temperature of the boiler using button
‘‘-’’
or
‘‘+’’
(image 16).
Each touch to the button will increase/decrease given
temperature of the boiler for 1 °C. Working temperature range
is 10 °C ÷ 80 °C
.
Confirmation of change must be done by pressing button
’’SET“
. If change is not confirmed, 15 sec after pressing any
button (except
’’SET“
), controller continues to work on old
value of set temperature and exits adjusting mode.
When change is confirmed pressing button
’’SET’’
, display
keeps the new value of temperature for 15 sec, and then
returns back to basic representation, or the present
temperature will appear on display
.
7.3.2 Boiler given power adjusting
Use the
‘‘-’’
or
‘‘+’’
buttons to select the mode for setting the
default power - the LED next to the "
Sets power
" indicator
lights up. Now press the
"SET"
button - the LED blinks next to
"
Set Power
", which means that it is possible to increase or
decrease the default power boiler using the
‘‘-’’
or
‘‘+’’
buttons.
Each keystroke increases or decreases the default power
boiler 1 step power (see Table 6).
In order for the change to be accepted it must be confirmed by
pressing the
"SET"
key. If the change is not confirmed, within
15 sec. by pressing any key (except for
"SET"
), the control
resumes operation according to the old default power value
and exits from the setting mode.
When the default power change is confirmed by pressing the
"SET"
key, the display will display a new setpoint of 15 sec and
then return to the basic display, the display will show the
current temperature.
Heating installation handling
Image 16:
Given boiler temperature adjusting
Image 17:
Given boiler power adjustment
