BeaconMedaes AGS 1560, Instruction Book

Remote start switch panels

1. Operate the exhauster unit by selecting each remote ON/OFF switch to ON. Select each remote start switch

in turn.

2. Ensure that at each selection the exhauster unit operates and that the green running indicator illuminates

only at the remote panel actually selected.

3. Ensure that the exhauster unit does not shut down until all remote ON/OFF switches are selected OFF.

1. The above checks must be carried out on all remote start switch panels.
2. The green running indicator will only illuminate when vacuum levels are sufficient to operate

the system failure pressure switch.

Setting the system performance

When setting the system performance, it is necessary to use sufficient test probes to fit to all terminal units
simultaneously. The test set and flow measuring device are also required to complete the following procedure.

1. Select isolator ON/OFF switch(es) to ON.
2. Select HAND/OFF/AUTO switch(es) to AUTO.
3. Select a convenient remote ON/OFF switch to ON, and check that the exhauster unit is operating.
4. Fit a test probe, flow measuring device and test set to the terminal unit furthest from the plant.
5. Adjust the test probe variable orifice to provide a pressure drop of 1 kPa (measured on the test set).
6. Adjust the terminal unit orifice to provide a flow rate of 130 litres/min and recheck the pressure drop.
7. Close the test probe variable orifice and check that the maximum vacuum level does not exceed 200 mbar.
8. Re-set the test probe variable orifice to provide a 1 kPa pressure drop and check that the flow rate is 130

litres/min.

9. Repeat the process detailed is section 5 to 8 above for each terminal unit in succession back to the one

closest to the plant, ensuring the terminal unit flow does not exceed 130 litres/min with a 1 kPa restriction.

10. Taking each terminal unit in turn, fit the test set and flow measuring device to the test probe. Reset the

test probe variable orifice to provide a 4 kPa pressure drop and check that a minimum flow rate of 80
litres/min is achieved at each terminal unit. Adjust as necessary.

11. Repeat Steps 4 to 10 inclusive on each part of the distribution system until all flow regulating valves are

correctly set.

12. Repeat Steps 9 to 10 inclusive on the entire installation with all terminal units in use.

If more than one terminal unit is fitted in any one theatre, only one terminal unit in each theatre
needs be flowing. Additional theatre terminal units should remain closed.

13. Repeat Steps 9 to 10 inclusive on the entire installation with only one terminal unit in use at any one time.

a. With a Duplex installation, Step12 must be repeated with the system energised by each

exhauster unit in turn. If the installation is such that both exhauster units are designed
to operate simultaneously, Step12 should be carried out with both exhauster units
operating.

b. Should the above performance figures be unobtainable during the initial commissioning

procedure, adjust the flow regulating valve to modify the line pressure accordingly
keeping it below the 200 mbar limit. Additional flow regulating valves can also be
installed to assist. This action should only be undertaken by

 BeaconMedaes

 personnel.

c. If the optional air inlet filter is used, repeat the final check with the filter installed.

Instruction book

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