Page 17
4990497003 Date: 11/2016
TR20 Installation, Operating & Maintenance Manual
4.4
Commissioning Procedure
All procedures and temperature readings should be taken via the 4 probes fitted in
the TR20 inlet and outlet flanges.
Commissioning
Watch out for hot-pipes and
make sure you replace/re-
tighten any fastenings.
NOTE
If the outlet temperature exceeds
250°C or the difference between
inlet temperature and outlet
temperature exceeds 220°C,
whichever occurs first stop the
test immediately and contact the
Gardner Denver Representative.
Max. Inlet Depression
100mbar under all
circumstances. 70mbar with
the commissioning filter
removed.
Max. Discharge Pressure
2.2 bar g
CAUTION
On completion of the installation and driver training, complete the
commissioning chart, sign, date and retain for future reference.
We also recommend photographing the installation and retaining with the
commissioning chart.
1 Check that the discharge gate valve on the pipework is open.
2 Start the engine, depress the clutch and allow the vehicle
gearbox parts to stop rotating (5 seconds should be sufficient).
Engage the PTO and slowly raise the clutch, then set the engine
speed to give a PTO output of 900 rpm.
3 Whilst the compressor is operating, check the pipework for leaks and
gently agitate the inlet to release any debris that may be present.
4 After 15 minutes, depress the clutch, and disengage the PTO.
5 Check the oil/fill level and drain plugs for leaks, and replace the
commissioning filter with the inlet gasket supplied being careful
to remove any debris that could fall into the pipe bore.
6 Repeat point 2 above and set the speed to 1650rpm or the
future/working operating speed.
7 Record the inlet depression and check for induction leaks. A
maximum of 70mbar is permitted on a new machine, if it is
greater than this, check the inlet pipes and filter for potential
blockages and that the comissioning filter has been removed.
8 Raise the discharge pressure to just below 2.2 barg by adjusting
the gate valve setting. Check for system leaks. If all is well, run
the compressor for 45 minutes recording temperatures
and pressures at 10 minute intervals. Measure the inlet and
outlet pressure and temperature as well as the ambient
temperature. Re-check for oil leaks
9 Increase the pressure beyond this to operate the relief valve.
10 The relief valve should crack (begin to open/blow off) at a
pressure not exceeding 2.2 bar g and then fully open (full
bypass) at no more than 2.2 bar g.
11 Slowly reduce the pressure until the relief valve re-seats (should
be before 1.9 bar g) and record this value on the
commissioning test sheet.
12 Make sure that all flanges are leak free and that fastenings/
mountings are still tight.
13 Disengage the PTO, return the engine speed to tick over and
then stop the engine.
14 Remove the commissioning probes and plug off the holes again.
Tick when completed
