Oilon GKP-50 MH, Руководство по эксплуатации и обслуживанию

Страница: 69 / 100

5.3 General description of burner operation
PI diagram, oil and gas use
B-535V+O ver. 2
Pos. Item Pos. Item
1 Ball valve 18 Pressure switch
2 Oil filter 19 Butterfly valve
3 Oil pump 20 Servomotor
5 Solenoid valve 21 Servomotor
7 Solenoid valve 22 Differential air pressure switch
14 Ball valve 23 Flame detector
15 Pressure switch A Oil to burner
16 Solenoid valve B Oil to tank
17 Actuator C Gas to burner
Burner start-up: Pre-purging, ignition
During pre-purge, the burner fan ventilates the boiler and chimney. At the time, the fuel
valves are closed. The fan creates a full air pressure before fuel inlet. Air in the boiler
and in the smoke flue will be circulated, which reduces the pressure, developing in
combustion chamber during flame ignition.
After the pre-purge, the servomotors run to the ignition position, the ignition begins, and
the fuel valves open. Fuel releases to the nozzle, and ignites by spark. Ignition ends
after time determined by the burner control. The flame burns with set ignition load.
M5164 1640EN 67 (95)