Operation Of The Appliance «Baltgaz Neva-4511 - BaltGaz NEVA-4511 User Manual

8.4. Operation of the appliance «BaltGaz NEVA-4511»
8.4.1. The appliance's flow chart is represented on scheme 15.
8.4.2. At the beginning of water flow through the water block 22 with water consumption not less than 2,5 l/min the
gas valve 30 is opened by the membrane stem 25 and the contacts of the micro switch 17 close, after this the control
block 15 starts feeding high-voltage current impulses to the ignition plug 10 and the electromagnetic valve 13 opens.
Ignition of the burner 5 comes from electric sparks between the ignition plug's electrode and the burner section nozzle.
Then the burner's operation is controlled by the flame sensor 11.
8.4.3. Water consumption regulator 1 regulates the volume and temperature of the water coming out of the appli-
ance: turning the regulator counterclockwise increases water consumption and reduces its temperature; turning the regu-
lator clockwise reduces water consumption and increases its temperature. The regulator's position also defines water
consumption with which switching the appliance on and off occurs (see p. 3.3.1).
8.4.4. Gas consumption regulator 2 regulates the volume of gas coming to the burner in order to receive required wa-
ter temperature at its set consumption: turning the regulator counterclockwise increases gas consumption and water
temperature; turning the regulator clockwise reduces gas consumption and water temperature.
8.4.5.At water flow stop or at its consumption reduction to a volume less than 2,5...6 l/min (depending of the water
consumption regulator 1 position) the contacts of the micro switch 17 open and the valves 13 and 30 close. The burner's
flame goes out.
8.4.6. The appliance is equipped with safety devices, providing:

gas access to the burner only in case of water flow;

stop of gas supply to the burner in case if its flame goes out;

switching the appliance off in case of no draught in the smoke exhauster;

switching the appliance off in case of water heating for more than 90 °С;

switching the appliance off in case of loss of electrical power.