11
Initial start-up, inspection and maintenance
Further details regarding the individual steps
(cont.)
5692Ă485
G
B
stops below set boiler
temperature and
restarts again
immediately
Gas combination
valve opens
Check flue gas
system for possible
leaks (flue gas
recirculation). Check
gas flow pressure
Ionisation current
builds
(higher than 5Ă
m
A,
green LED lights up)
Yes
Fault
U
14
ĂĂĂ
or
ĂĂĂ
U
:1:4
ĂĂĂ
or
ĂĂĂ
14
Check electrode
settings,
check for air bubbles
in gas pipe,
check if leads "L
Ă
1"
and "N" have been
interchanged,
check strapping
plugĂ158
Check the gas
combination valve
(drive voltage 20ĂVć),
check the gas
supply pressure
Check ignition mod-
ule (drive voltage
24ĂVć across plugs
"54+" and "54ć")
Ignition
Yes
Yes
Fault
U
14
ĂĂĂ
or
ĂĂĂ
U
:1:4
ĂĂĂ
or
ĂĂĂ
14
Fault
U
14
ĂĂĂ
or
ĂĂĂ
U
:1:4
ĂĂĂ
or
ĂĂĂ
14
Operational burner
Yes
No
No
No
Display screen
Check
Continuation from
previous page
Summary of Contents for Vitodens 200
Page 25: ...25 Initial start up inspection and maintenance 5692Ă485 GB ...
Page 96: ...96 Control unit for weather compensated mode with Comfortrol prog unit 5692Ă485 GB ...
Page 99: ...101 5692Ă485ĂGB ...
Page 105: ...109 Appendix Maint service Maint service Maint service Maint service 5692Ă485ĂGB ...
Page 107: ...111 Appendix Maint service Maint service Maint service Maint service 5692Ă485ĂGB ...
Page 109: ...113 Appendix Maint service Maint service Maint service Maint service 5692Ă485ĂGB ...