Oilon GKP-50 MH, Руководство по эксплуатации и обслуживанию

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5.7 Time sequence diagram, oil use, 2-stage
Time sequence diagram for oil (two stage) ver. 1
3) Irrelevance time oil P 765 affects safety interlock chain oil and oil pressure min.
when ignition valve or oil valve opens.
X07 Safety interlock chain boiler X04 Ignition transformer
X06 Safety interlock chain burner X01 Main oil valve and 1-stage valve
X10 Burner ON X02 Main oil valve and 2-stage valve
X08 Monitoring air pressure X25 Fan ON
X20 + X21 Flame signal X24 Fault
X32 Air damper
5.8 Operation description, oil use
Prerequisites for start-up
● Fuel selector switch in position 1 (OIL).
● Failures and interlocks are reset.
● Limit switch on burner flange and oil pressure switch (X06) are closed.
● Boiler safety equipment is reset (X07: temperature and pressure limit switch, dry-
boiling preventer, boiler flange limit switch and so on).
● The control unit is on standby.
● Remote control contacts are closed (X10).
● Boiler thermostat/pressure switch contact is closed (X10).
● Differential air pressure switch contact is open (X8).
● Load controller module start-up limit reached.
Start-up
● Control unit safety features are activated.
● Fan motor is started (X25).
● Servomotors drive to the pre-purge position.
M5164 1640EN 73 (95)