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Legend (cont'd)
Lockout indication positions when there is no input signal (see Control sequence in the event of faults):
◄
No start
▲
Abortion of startup sequence
▼
Abortion of startup sequence
■
Lockout (fault in the flame supervision circuit)
1
Lockout (no flame)
Lockout (no flame)
2
P
Lockout (no air pressure)
Time table
t1
Prepurge time with air damper fully open
TSA
Safety time or first safety time with burners using a pilot burner
TSA´
Safety time or first safety time with burners using a pilot burner
t3
Preignition time
t3´
Preignition time
t3n
Postignition time (ignition transformer connected to terminal 15)
t4
Interval between the start of safety time (TSA/TSA´) to the valve connected to terminal 19
t4´
Interval from the start of safety time (TSA/TSA´) to the release of the valve connected to terminal 19
t5
Interval from the end of interval (t4/t4´) to the release of the load controller or valve at terminal 20
t6
Postpurge time (identical with the permissible afterburn time (t13))
t7
Switch-on delay for fan motor M2
t8
Duration of startup sequence excluding running time (t11/t12)
t9
Second safety time with burners using a pilot burner
t10
Interval from the start to the beginning of the air pressure check
t11
Running time of air damper into the fully open position
t12
Running time of air damper into the low-fire position
t13
Permissible afterburn time
t16
Interval from the start to the OPEN command for the air damper
t20
Interval to the self-shutdown of the sequence switch
max.
Safety time in the event of loss of flame during operation
*
Times safety time (TSA´), long preignition time (t3´) and interval (t4´) are only programmed by burner
controls LGK16.335... and LGK16.635...
Building Technologies Division
27/28
CC1N7785en
20.11.2017
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