Centrometal PelTec Series Technical Instructions page 79

13.4 OPERATION STAGES (SHOWN ON THE SCREEN)
OFF Boiler is switched off
S0 Initial fan blowing, waiting for grate position check
Not used
S1
S2 Initial pellet filling
S3 Waiting for flame to appear
Electric heater working after flame appears
S4
S5 Flame developing stage
SP1 Stabilisation stage 1
Stabilisation stage 2
SP2
SP3 Stabilisation stage 3
SP4 Stabilisation stage 4
Stabilisation stage 5
SP5
S6 Additional flame developing stage
D0 Power D0
Power D1
D1
D2 Power D2
D3 Power D3
Power D4
D4
D5 Power D5
D6 Power D6
Shuting down stage
S7
1st stage of shuting down stage, waiting for flame to dissapear and additional blowing for
set time, after which S7-2 stage starts. Flue gas fan works (rpm) according to stage from
S7-1
which boiler entered S7-1 stage
2nd stage of shutting down stage. Final flue gas fan blowing at. max rpms until factory
S7-2 set time passes. After this stage grate cleaning stage starts (C0) and enters S7-3 stage.
Burner don't work/standby/pause. Boiler waits demand for start.
S7-3
Stage after power supply failure and power supply return, el. heater is started and waits
PF0
for flame to appear (if flame appears -> PF1, if flame don't appears -> PF4)
PF1 El. heater switches off and enter PF2
PF2 Flame developing stage, enter PF3
PF3 Waits for flame disappearing, enter PF4
Final flue gas blowing, boiler restarts or enters OFF stage, depending of the stage when
PF4
power supply failure accurs
C0 Grate cleaning stage
Technical instructions REGULATION PelTec / PelTec-lambda
Operation stages
Boiler stage
mark
79