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COMMISSIONING INFORMATION
AMI086-A
Figure
22
: Gas Train Test Point
AMI085-A
Figure
21
: LPG Valve Labelling
2.
Confirm that main burner spuds are the correct type for the supply gas and free from obstruction.
3.
Visually inspect pipework for damage. Apply a leak detection solution to all connections to confirm that there are no
leaks. Confirm that the barrel union has not come lose during transportation or installation.
4.
All gas leaks cannot be confirmed until gas has been supplied to the main burner.
4.4 GAS CHECKS
4.4 1 Incoming Gas Supply Checks
1. Turn OFF main isolator and follow LOTO procedures.
2. The gas connections are to be completed by a licensed and experienced person.
3.
Confirm that incoming gas lines where purged with all dirt and condensation removed prior to installation.
4.
Confirm that the gas train is connected as specified in Section 3.4.4 Gas Train.
5.
Check the pilot and ignition are correctly aligned to the pilot burner such that the pilot flame will enter the adjacent
main burner gas stream. Refer to Pilot Injector Setup Section
6. Purge all air from the pipeline and check for leaks by using a soap solution or leak detector.
7.
Check gas supply pressure before gas valve (Must be less than 3.5 kPa) Gas pressures exceeding 3.5Kpa will
cause the units gas valve to “lockup” requiring relief of the line pressure prior to the valve. This is generally done by
bleeding the supply line. Record results
4.4.2 Gas Train Check
Once the incoming gas supply is connected to the unit the gas train can be commissioned.
1.
Confirm that the gas valve is set up for type of gas being supplied to the unit. If the valve has been converted for
LPG use it will have labels attached (Figure 21: LPG Valve Labelling). Record results.
1.
Check that the belts are correctly fitted and tensioned. Refer to manufacturer’s literature for tensioning
methodology and tension requirements.
2.
Confirm the fan direction. If the fan is spinning in reverse, check the wiring diagram to ensure that the motor is
wired in correctly. Fan direction is to be checked on high and low settings.
SUPPLY TEST POINT
PILOT CONNECTION
POINT
BARREL UNION
MANIFOLD TEST POINT
