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Automatic permutation of all LGMs maintained
• Programming output ST9 as a signalling out-
put of all LGMs in the system.
• Using a relay system, control of the external
solenoid safety valve (EV, fig. 28) by using the
ST9 outputs in all the LGMs in the system.
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Exclusion of the first LGM from the LGM automatic
permutation system (authorized permutation for the
other LGMs)
• Programming output ST9 as signalling output
of LGM No.1 (main LGM) and connection of
the external solenoid valve (EV, fig. 29) to this
output.
• Exclusion of this LGM from the automatic se-
quence permutation.
Setting the RVA 47:
= 01.1: the main LGM is the one carrying ad-
dress 1 (of segment 0), and sub-
address 1 (LGM n°1).
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Locking of the automatic permutation of all the
LGMs
• Programming output ST9 as a signalling out-
put on LGM No.1 (main LGM) and connection
of the external solenoid safety valve
(EV, fig. 30) to this output.
• Locking of the automatic permutation of all the
LGMs.
Setting the RVA 47:
= 01.1: the main LGM is the one carrying ad-
dress 1 (segment 0), et la sub-address 1
(LGM No.1).
5HOD\;
/*0 Q
ST 9
5HOD\;
/*0 Q
ST 9
5HOD\;
/*0Q
ST 9
5HOD\;
/*0 Q
ST 9
5HOD\;L
/*0 QL
ST 9
L
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Exclusion of the boiler from the
automatic sequence permutation
0 none
1 first boiler
2 last boiler
3 first and last boiler
1
Main boiler for the fixed sequence
01.1
Permutation authorized
ST 9
/*0Q /*0Q
ST 9
/*0Q
ST 9
/*0Q
ST 9
/*0
QL
ST 9
(9
)LJ
/LQH )XQFWLRQ 6HWWLQJ
Switching of cascade boilers
--- No automatic switching (fixed
boiler sequence)
10...990 Switching according to the number
of hours set
- - -
Main boiler for the fixed sequence
01.1
/*0Q
NO permutation authorized
ST 9
/*0Q
ST 9
/*0Q
ST 9
/*0Q
ST 9
/*0
QL
ST 9
(9
)LJ
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