Start-Up - SBM SX Series Installer's Instructions

2.9 Start-up

 Gas-tightness test for industrial installations : (see diagram on next page)
DRY AIR OR NITROGENE
= Open valve
= Closed valve
 Clean out
Aim: flush out impurities in gas piping
Clean out gas piping with dry air or, better, with nitrogen, AFTER DISCONNECTING ALL
ACCESSORIES.
PRESSURE ON
FLUSH OUT OUTLET Nr. 1
FLUSH OUT OUTLET Nr. 2
a) Ensure that the installation is at a pressure (nitrogen or dry air) equal to 1.5 times the
gas operating pressure.
b) Turn off the nitrogen or dry air supply and wait 15 minutes for the pressure to stabilise.
c) Check the pressure on the pressure gauge.
d) After two hours, the pressure gauge needle must still show the same pressure.
e) If pressure has dropped, detect leaks , fix them and repeat the operation.
MAIN GAS VALVE GAS FILTER
= Open valve
= Closed valve
PRESSURE GAUGE
NC
INDIVIDUAL VALVES OR FIXED REGULATORS + VALVES
OPEN SOLENOID
VALVE
1
TO HEATERS
2
12