Siemens LMV36.520 Series - Start Without Prepurging (as Per en 676)

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Building Technologies Division Basic documentation LMV36... CC1P7544en
Infrastructure & Citiies Sector 7 Basic unit 25.09.2013
7.5.5.5. Start without prepurging (as per EN 676)
When using valve proving and 2 fuel valves of class A, prepurging is not required
(conforming to EN 676).
Prepurging can be deactivated via parameter.
No. Parameter
222
Gas: Prepurging
0 = inactive
1 = active
322
Fuel 1 gas: Prepurging
0 = inactive
1 = active
When prepurging is activated, it is performed in accordance with the adjusted prepurge
time.
If not activated, it is nevertheless performed of the following conditions apply:
 Alterable lockout position
 After an off time of >24 hours
 In the event of a power failure (power-on)
 In the event of shutdown due to an interruption of gas supply (safety shutdown)
No. Parameter
225 Gas: Prepurge time
325 Fuel 1 gas: Prepurge time