62
For ‘STEP AUTO’ function (the two digit code allocated to each function). Refer to Section 9.7.3.
Wait Post Purge
9.3 Burner Operating Sequence
Flow Chart of Operation of Wood Pellet Boiler
Wait Boiler Thermostat
Wait Pre Load Brazier
Pressure Switch Check OK
T > 65 Sec Pre Load Time
Switched Live
Input Off
Switched Live
Input Off
Switch live
Activated
03
40
40
41
45
Temp >set point less the ‘Delta Restart’
Temp or Switched Live Input Off
Temp < set point less the ‘Delta Restart’
Temp and Switched Live Input On
Wait Lighting
(Ignition)
Lux = 2 Lux
Wait Lighting
(Flame Stabilisation)
T > 30 Sec Flame Stabilisation
42
Wait Lighting
(Lighting Feed Reduced)
T > 120 Sec Lighting Feed Reduced
13
Pellet Burner Firing
(Max Flame)
Temp < below the set
point ‘Temp Delta’ Range
Flash Cleaning = 1
Auger run time >
‘Time Clean Braz’ and/
or ‘Time Clean Boiler’
Temp < below the set
point ‘Temp Delta’ Range
13
Pellet Burner Firing
(Modulating)
Temp > above the set
point ‘Temp Delta’ Range
Temp > above the set
point ‘Temp Delta’ Range
13
14
Pellet Burner Firing
(Min Flame)
Temp > ‘Temp Off H2o’
Flash Cleaning = 0
Auger Run Time > ‘Time Clean Braz’
Auger Run Time >
‘Time Clean Braz’
Auger Run Time > ‘Time Clean Boiler’
Auger Run Time >
‘Time Clean Boiler’
Turning Off Brazier
14
Switched Live
Input Off
Switched Live
Input Off
Switched Live
Input Off
Switched Live
Input Off
Lux < 2 Lux
26
Turning Off Brazier
Wait Cleaning Boiler
Wait Brazier is Opening >>>
Wait Brazier is Closing >>>
15
15
03
Wait Pre Load Brazier
(Pressure Switch Check)
180 seconds
Содержание Spira 5-18
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