17
INSTALLATION AND OPERATION MANUAL
Lamp 6 “Ventilator on” lights up when the boiler
ventilator is operating. The more frequently it blinks, the
higher the rotational speed of the ventilator is, since its
blinking frequency corresponds to the impulse frequency
of the power supply to the ventilator. If this lamp is lighting
constantly, it means that the ventilator is operating at
100% of its capacity.
Lamp 7 signals that the programming output channel
is switched on. Button 8 is used for service programming
and can only be used by the specialists of the service
company. We do not recommend the user to modify the
programming modes.
Button 8 is multipurpose, and is used for some support
functions and service programming.
The boiler regulator is connected to the boiler circuit in
accordance with the scheme shown in Fig. 12. The power supply
L2, stemming from the front control panel and transferred to the
regulator, is switched on when switches 2 and 3 (Fig. 9) are in the position ON and the emergency thermostat has not tripped. The impulse
commutator regulating the ventilator connects periodically L2 to L3. When the boiler switches to status “Firing off”, L3 does not supply
power to the ventilator and lamp 4 (Fig. 11) lights up. To return to the mode “Firing on”, the power supply L2 should be interrupted by
switching off the ventilator switch 3 (Fig. 9) or the power supply of the boiler (on/off button 2, Fig. 9), and later turning them on. The pump
control relay connects L4 to L1. The programmable channel relay connects P to L1.
The power of the operating ventilator ranges between 20÷100 VA. The maximum allowed power of the circulation pump
connected to the regulator is 250 VA. The maximum allowed power of the programmable channel is 250 VA.
• PRePaRaTIon foR fIRInG
Before kindling the boiler, check the position of the ceramic chopper 2 in the lower combustion chamber: the edge of the
chopper must be in contact with the rear wall of the boiler (Fig. 2). Place two ceramic segments 3 (Fig. 2) on the chopper so
that they contact the walls of the boiler chamber.
Fill the heating system with water. The filling pressure should be 0.2 bar bigger than the hydrostatic pressure, yet it must
not exceed the operating pressure of the boiler. After filling the system with water, perform a visual check of the tightness of
the entire system. Perform it before kindling the boiler, then again after kindling and reaching the nominal operating mode.
Check if the heating system is properly deaerated.
• KInDlInG PRoceDURe of THe boIleR
Before kindling the boiler, check whether all requirements indicated in the section 1 are executed.
Open the damper of the upper flue 19 by pulling the handle 3 (Fig. 1) towards yourself. Open the door of the upper
combustion chamber, put dry smaller kindling wood pieces and paper on the ceramic bottom so that the paper protrudes into
the lower combustion chamber through the rectangular opening of the ceramic burner 1 (Fig. 2) – this way, it will be easy
to kindle the boiler through the lower combustion chamber. Put some of the easily flammable materials and larger pieces of
kindling wood and firewood atop. Load the wood without any large gaps at the top of combustion chamber. Bigger pieces of
firewood should be loaded in the middle and smaller prices at the sides, because the walls of the combustion chamber slow
down the combustion of the bigger pieces of wood, due to their lower temperature.
KR-4.3D
X-2
X-3
X-1
U
L1
N
L2
L3
L4
P
L1, N- reguliatoriaus maitinimas;
L2 - ventiliatoriaus maitinimas;
L3 - įtampa į ventiliatorių;
L4 - įtampa į siurblį;
P - įtampa į programuojamą išėjimą;
U - vandens temperatūros jutiklis;
U - dūmų temperatūros jutiklis.
U
2
3
2
3
Rear panel of the regulator
fig. 12 Regulator connection diagram
L1, N – power supply to the regulator; L2- power supply from front control
panel to the ventilator; L3 – voltage to the ventilator; L4 – voltage to the
pump; P – voltage to the programmable channel; U2 – water temperature
sensor; U3 – smoke temperature sensor.