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CHIMNEY DRAUGHT BREAKER
The draught breaker is an important part of the boiler. It is installed on the flue gas exhaust with
stable exhaust from 2 to 200 Pa. This item is removable to enable approach for service works. When
installing back, it is necessary to seal it properly. Dimensions and shape of the draught breaker are
given by the producer and must not be changed!
FUNCTION OF THE DRAUGHT BREAKER:
y safe and perfect burning
y partial elimination of an excessive exhaust, stabilization of the boiler
efficiency
y protection of the boiler against possible influence of reverse draught in the chimney
y reverse draught can start as a result of an incorrectly selected exhaust ventilator in a flat or a
house which is dangerous and not allowed
y in the case of accidental intake of flue gas or outside air intake into the boiler, the draught breaker
ensures accomplished burning for a limited time and flue gas returns from the draught breaker
back to the boiler room
FUNCTION OF THE FLUE GAS THERMOSTAT
The flue gas thermostat serves to interrupt the boiler operation by closing the gas supply into the
boiler, if the reverse flue gas flow occurs. The flue gas thermostat is not switched on automatically
after the sensor cools down. It is necessary to switch it on manually, by the red or black button on
the thermostat. If the boiler operation is blocked again, it is necessary to call service technician. The
flue gas thermostat must not be out of order during the boiler operation. The faulty thermostat
must be replaced only with an original one supplied by producer.
BOILER FUNCTION
The required water temperature is kept by the boiler thermostat. When the water temperature
achieves the adjusted value, the appropriate electrical part of the combined valve is closed.There-
by is the gas supply into the burners stopped.
The thermostat enables the power supply and the main burners are ignited immediately after the water tem-
perature decreases for several degrees under the adjusted value (i.e. starting difference value of thermostat).
The flame control is automatic. If the burning conditions change (big drop of gas pressure, gas
supply broken or burning stopped), the valve closes the gas supply into the burners. The emer-
gency thermostat protects the boiler against overheating, if the boiler thermostat or valve fails.
OUTPUT REGULATION
The boiler is equipped with the basic regulation and control elements that serve for one-level
(EKO, KLV), two-level (PLQ, KLQ) and automatically controlled (E, EZ) output regulation. The regula-
tion of the boiler can be set up and controlled only by a specialized service worker.
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