baltur COMIST 180 Manual Installation, Use, Maintenance page 67

LDU 11.. GAS VALVE TIGHTNESS CONTROL EQUIPMENT
Control programme
t
5s Putting control circuit under atmospheric pressure
4
t
7,5s Time between start-up and energizing of main "AR" relay
6
t
22,5s 1st verification stage at atmospheric pressure
1
t
5s Putting control circuit gas under pressure
3
t
27,5s 2nd verification stage at gas pressure
2
t
67,5s Total time of tightness control, up to burner operation consent
5
t
22,5s Return of programmer to rest position = fresh verification is enabled
20
Course of programme
AL
AR
AS
BR
DW
EK...
GP
HR
L1
SK
I...XI
29 / 34
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remote alarm signalling
main relay with "ar" contacts
equipment fuse
blocking relay with "ar" contacts
outer pressure switch (tightness control)
unblocking button
outer pressure switch (for mains gas pressure)
auxiliary relay with "ar" contacts
equipment trouble signalling lamp
line switch
programmer cam contacts
Terminals activated by
equipment or by electric
connections
E
N
G
L
I
S
H