Determination Of Vp Leakage Rate - Siemens LMV5 Series Basic Documentation

Determination of VP
leakage rate
Legend
Examples
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HVAC Products
(P G - P w )
⎯⎯⎯⎯⎯⎯⎯⎯⎯
Q Leakage =
Q Leakage in l / h
P G in mbar
P W in mbar
P atm in mbar
V in l
t Test in s
Refer to chapter «Commissioning instructions for LMV5... system» / gas valve proving /
leakage test.
Basic Documentation LMV51...
4 Burner control
V 3600
• •
P atm t Test
•
Leakage rate in liters per hour
Overpressure in the piping section between the valves to be tested, at the
beginning of the test phase
Overpessure adjusted on the pressure switch (normally set to 50 %
of the gas inlet pressure)
Absolute air pressure (1,013 mbar normal pressure)
Volume in the piping section between the valves to be tested, including the
volume in the valves themselves, plus any pilot section (Gp1)
Test time
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CC1P7550en
01.10.2003