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5 Functional Description with Process Diagrams
5.1.4 Default Process Flow for Oil Modulating Without Pilot Burner
Fig. 5-7 Process sequence chart for oil modulating without pilot burner
Fig. 5-8 Oil train oil modulating without pilot burner
Signal bar Significant times and their parameters Standard
Signal must be present. t4* Parasitic light monitoring time P803 5.0 s
Signal must not be present. t5 Pre-ventilation time P318 1 - 999 s
Signal can be present. t6 Transformer pre-activation time P309 3.0 s
t7 1
st
safety time P305 4.0 s
t11 Control release delay time P380 0.0 s
t13 Post-ventilation time P319 0.0 s
t22 Program monitoring time P304 600 s
t23 Irrelevance time P323 2.0 s
V1 Fuel valve on oil side M Actuator drive for gas damper
V2 Fuel valve on burner side
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