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Building Technologies Basic Documentation LMV27... CC1P7541en
7 Basic unit LMV27 17.12.2018
7.3.6 Gas pressure switch for valve proving X9-04
Input for connection of Pressure switch valve proving X9-04. The input is active only
when operating on gas and when valve proving is activated (refer to chapter Program
sequence).
No. Parameter
241
Gas: Execution valve proving
0 = no valve proving
1 = valve proving on startup
2 = valve proving on shutdown
3 = valve proving on startup and shutdown
Protective earth (PE)
Pressure switch - valve proving
“L” for pressure switch
LMV...
X9-04
3
2
1
Figure 18: Gas pressure switch valve proving X9-04
Pressure switch valve proving
Input for connection of valve proving with a specific pressure switch. The input is active
only when firing on gas and when valve proving is activated.
Error
code
Diagnostic
code
Meaning for the LMV27
12 81 Fuel valve V1 leaking
83 Fuel valve V2 leaking
Note
When using configuration Valve proving via gas pressure switch-min, it is not possible
to use the input for Start release gas.
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