Malfunctions
75
Table 13.2 Flue gas sensor
Display:
Flue gas S fr
Description:
Flue gas sensor fracture, measuring circuit from flue gas sensor is open
Cause and Remedy:
sensor not connected
► connect sensor at input
sensor defect
► measure sensor (approx. 1kΩ at 32°F) replace if
required
sensor cable defect
► replace sensor
signal input defect
► change CMP PLC
sensor temp. too high
► sensor temperature above measuring range (752°F)
Display:
Flue gas S sh-c
Description:
Flue gas sensor short circuit, measuring circuit from flue gas sensor is shorted out
Cause and Remedy:
sensor defect
► measure sensor (approx. 1kΩ at 32°F) replace if
required
sensor cable defect
► replace sensor
signal input defect
► change CMP PLC
sensor temperature too low
► sensor temperature below measuring range (14°F)
Table 13.3 Combustion chamber sensor
Display:
Comb S fr
Description:
Combustion chamber sensor fracture, measuring circuit from combustion chamber
sensor is open
Cause and Remedy:
sensor not connected
► connect sensor at input
sensor defect
► Measure sensor (approx. 5mV at 257°F) replace if
required
sensor cable defect
► replace sensor
signal input defect
► change CMP PLC
sensor temp. too high
► sensor temperature above measuring range (2012°F)
Display:
Comb S sh-c
Description:
Combustion chamber sensor short-circuit, measuring circuit from combustion chamber
sensor is shorted out
Cause and Remedy:
sensor defect
► Measure sensor (approx. 5mV at 257°F) replace if
required
sensor cable defect
► replace sensor
signal input defect
► change CMP PLC
sensor temperature too low
► sensor temperature below measuring range (14°F)
sensor polarity incorrect
► ex and – connections
Table 13.4 Negative draft measurement
Display:
UP open
Description:
Negative draft input open, measuring circuit from negative draft measurement open
Cause and Remedy:
signal incorrect
► check polarity and signal (0-10V)
signal cable defect
► replace sensor
signal input defect
► change CMP PLC
signal too low
► signal below 0V
combustion chamber leak
► check closure of boiler door
PE 3671 USA 2.3
Installation Manual PES 36–56
Содержание Pellematic PES 12-20
Страница 38: ...Connecting up to the power supply 38 Installation Manual PES 36 56 PE 3671 USA 2 3...
Страница 46: ...Connecting up to the power supply 46 Installation Manual PES 36 56 PE 3671 USA 2 3...
Страница 47: ...Connecting up to the power supply 47 PE 3671 USA 2 3 Installation Manual PES 36 56...
Страница 52: ...Operating the pellet boiler 52 Setting date and time Installation Manual PES 36 56 PE 3671 USA 2 3...
Страница 88: ...Appendix 88 Installation Manual PES 36 56 PE 3671 USA 2 3...
Страница 92: ...Appendix 92 Installation Manual PES 36 56 PE 3671 USA 2 3...
Страница 99: ...Appendix 99 Labeling 105x74 PE 3671 USA 2 3 Installation Manual PES 36 56...
Страница 100: ......