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Type of error
Function
3639.1] Burner has shut
down
TkIst > MaxRate Trise
Max. temperature
gradient exceeded
flow [4091.1]
T too great
> maximum delta
between flow and return
Output reduced by 20%
T > MaxDelta flow-
return + SLT delta-T
offset partial load
Output reduced to
minimum
T > MaxDelta flow-
return + SLT delta-T
offset start
prevention
Boiler return temperature
> actual value of boiler
Return temperature
temperature +
higher than flow
Switching differential
return higher than flow
¹)
Function must be separately activated by Siemens
Legend
Line no.
Meaning
T
TKIst
Building Technologies Division
Operating state
Faulty
Unfavorable
Diagnostics/
error display
Small heat draw
()
User Manual LMS14...
6 The settings in detail
Error reactions
Lockout
Start
Immediately
After
prevention
(min)
24h [3914.1]
Parameter:
Number of errors temp gradient
in 24 h Numbr err, Tgrad 24h
[3913.1]
Parameter:
Number of errors delta-T within
24 h
Parameter:
Number of errors return higher
than flow in 24 h
Parameter
After number of errors
(in 24 hours)
[4091.1] MaxRate Trise flow
[3911.1] Dur bli'cir Tgradien
[3913.1] Numbr err, Tgrad 24h
[3916.1] MaxTdiff flow/return
[6604.1] SLT T diff low-fire
[6605.1] SLT T diff start prev
[3921.1] Numbre err, Tdiff 24h
[3923.1] SwiDiff Tret>Tflow
251/617
CC1U7471en
07.05.2014
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