baltur BGN 100 DSPGN, Instructions Manual

Page: 32 / 48

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