10
Initial start-up, inspection and maintenance
Further details regarding the individual steps
(cont.)
Function sequence and possible errors during the initial start-up
For further details see "Troubleshooting".
5692Ă485
G
B
Fan starts up
Check flow switch,
check heating
water circulation
Flow switch has
reacted, plugĂ33
Increase set value
and ensure heat is
drawn off
Control unit issues
a heat demand (set
boiler temp. is 5ĂK
higher than actual
boiler temp.)
Differential pressure
sensor enables start
(0.75ĂV across
terminals
"X
Ă
14.5" & "X
Ă
14.4")
Yes
Yes
Yes
after approx. 70Ăsec.
Fault
U
06
ĂĂĂ
or
ĂĂĂ
U
:0:6
ĂĂĂ
or
ĂĂĂ
06
Check cables and
plugs on fan,
check fan
Check air damper
movement. Check
flue gas system,
Check differential
pressure sensor
after approx. 70Ăsec.
Fault
U
06
ĂĂĂ
or
ĂĂĂ
U
:0:6
ĂĂĂ
or
ĂĂĂ
06
Continued overleaf
Yes
No
No
No
No
Display screen
Check
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 ...