32
AL
remote alarm signalling
AR
main relay with “ar” contacts
AS
equipment fuse
BR
blocking relay with “ar” contacts
DW
outer pressure switch (tightness control)
EK... unblocking button
GP
outer pressure switch (for mains gas pressure)
HR
auxiliary relay with “ar” contacts
L1
equipment trouble signalling lamp
SK
line switch
I...XI programmer cam contacts
Control programme
t
4
5s
Putting control circuit under atmospheric pressure
t
6
7,5s
Time between start-up and energizing of main “
AR
” relay
t
1
22,5s
1st verification stage at atmospheric pressure
t
3
5s
Putting control circuit gas under pressure
t
2
27,5s
2nd verification stage at gas pressure
t
5
67,5s
Total time of tightness control, up to burner operation consent
t
20
22,5s
Return of programmer to rest position = fresh verification is enabled
Course of
programme
Terminals activated
by
equipment or by
electric
connections
LDU 11.. GAS VALVE
TIGHTNESS CONTROL EQUIPMENT
Содержание BGN 100 DSPGN
Страница 6: ...6 BGN 40 DSPGN 100 DSPGN N 7604 2 Rev 02 02 96 BGN 120 DSPGN 350 DSPGN N 7605 5 Rev 17 11 97...
Страница 19: ...19 AIR REGULATION PRINCIPLE DIAGRAM FOR GAS BURNERS BT 8769 1...
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