Ionisation cur-
rent builds
(higher than
5 µA)
No
Fault
Check electrode
adjustment and
gas pipe for air-
locks
Symbol
A
F4
Yes
Operational bur-
ner
Stops below set
boiler tempera-
ture and restarts
Check flue gas
system for sound-
ness (flue gas
recirculation),
check gas flow
pressure
Checking static and supply pressure
Danger
Higher CO emissions can lead to poisoning.
Measure the CO value before and after any work on gas equipment to
prevent any health hazards and to ensure the perfect operational condi-
tion of the system.
Operation with LPG
Flush the LPG tank twice during commissioning/replacement. Thoroughly vent
the tank and gas lines after flushing.
Further details regarding the individual steps
(cont.)
12
Initial start-up, inspection, maintenance
56
92
550
GB
Содержание VITODENS 300 WB3A
Страница 10: ...Opening the control unit housing 10 5862 570 GB...
Страница 14: ...Closing control unit housing and inserting user interface 14 5862 570 GB...
Страница 122: ...Temperature profile Factory set code F1 6 to F1 15 Control functions cont 106 Function description 5692 550 GB...
Страница 125: ...A1 Main PCB A2 Mains supply unit Connection and wiring diagrams external connections 109 Designs 5692 550 GB...
Страница 129: ...Parts lists cont 113 Parts lists 5692 550 GB...
Страница 130: ...Parts lists cont 114 Parts lists 5692 550 GB...
Страница 131: ...Parts lists cont 115 Parts lists 5692 550 GB...
Страница 132: ...Parts lists cont 116 Parts lists 5692 550 GB...
Страница 133: ...Parts lists cont 117 Parts lists 5692 550 GB...
Страница 145: ...129 5692 550 GB...
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