29
- Check if wires for mixer opening and
closing are not swapped. Go into:
Manual control and open mixer by selecting
Mixer 1 Opening = ON. By opening
servomotor temperature on the mixer sensor
should increase. If not, disconnect the power
and swap wires. (attention: another cause
may be incorrectly connected valve! – check
the producer’s documentation if it is properly
connected).
Calibration of valve indicator position:
Indicator of valve position is in the menu:
Information. For mixer 1 after some time it
will calibrate automatically. In order to make
the valve position indicator displaying
quicker the right value, disconnect the
electrical power of the controller, than in
cover of the controller switch the button into
manual control. Turn the cap of the valve
into closed position, then again switch the
button in the cover into AUTO. Connect the
electrical power to the controller - %
indicator of valve opening is calibrated.
Attention, in mixers No 2,3,4,5 calibration is
automatic after connecting electrical power.
In case of these mixers wait until indicator of
valve opening is calibrated in %. During
calibration the servomotor is closed through
valve opening time.
12.16. CIRCULAR PUMP CONNECTION
The circulation pump can be connected to
the boiler regulator after connecting
additional module C or Output H to the
regulator's executive module. You must set
the support Output H mod A or Output H
mod B/C on Circulation pump.
12.17. TEMPERATURE LIMITER
CONNECTION STB
In order not to overheat the boiler due to the
controller breakdown it is obligatory to use
STB safety temperature limiter or any other
one suitable for given boiler. Limiter STB
should be connected to terminals 1-2. When
limiter is activated, blowing is stopped as
well as engine of fuel feeder.
In case of not installing the limiter terminals
1-2 are to be connected by a bridge. The
bridge must be made with insulated wire,
with diameter at least 0,75mm
2
.With
insulation which is thick enough to meet
safety standards of the boiler.
12.18. ROOM PANEL CONNECTION
It is possible to equip the controller with
room panel Room Control/Room Control
TOUCH, which has following functions:
- Room thermostat (controls up to 3
thermostats)
- Alarm signal
- Fuel level indicator
4-wire connection:
Attention: properly connect the power cord
VCC of the room panel to the controller
terminal according to Electric Scheme.
2-wire connection:
2 wire connection requires usage of power
supply feeder +5V or +12V of direct current
with nominal current minimum 200mA.
Points of powering Room Control: GDN and
+VCC connect to external power supply
feeder. The feeder is not a standard option
for the controller. Lines D+ and D- connect
in such a way as shown on scheme, point
12.6
Maximum length of wires in the additional
panel should not exceed 30m, their diameter
should not be lower than 0,5mm
2
.
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