BeaconMedaes AGS 1560, Instruction Book

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Simplex exhauster units
1. Carry out continuity checks on all earth connections between the exhauster unit, starter/isolator panel and
remote start switch panels.
2. Check tightness of the exhauster unit mounting bolts and the pipeline connections.
3. Check that the exhaust pipeline from the exhauster unit is routed to discharge the waste gas in a safe area
outside the building. Ensure that warning notice 1825193 (No back pressure allowed) is permanently
displayed at the discharge point.
4. Ensure that the electrical power supply is compatible with the exhauster unit. Check that the overload
device in the starter/isolator panel is set to the full load of the exhauster unit. Ensure that correct size fuses
are fitted and ensure that the electrical power supply is on.
5. Select exhauster unit isolation switch to ON, and check that POWER ON red indicator on starter/isolator
panel is illuminated.
6. Momentarily select HAND/OFF/AUTO switch to HAND and check that the exhauster unit rotates in the
correct direction. An arrow on the motor casing indicates the correct direction of rotation.
7. Select isolating ON/OFF switch to ON. Select HAND/OFF/AUTO switch to HAND and ensure that the
exhauster unit operates. Check that the RUNNING green indicator illuminates. Check that selection of
either switch to OFF stops the exhauster unit.
On all installations with a pressure switch, the green RUNNING indicator will only illuminate when
the system vacuum level achieves the preset value of the plant failure pressure switch.
8. Ensure that the exhauster unit runs smoothly without any unusual noise and switch it OFF.
9. Remove the terminal block cover on the exhauster unit motor and clip an ammeter onto the input cables.
Run the exhauster unit and check that the current level does not exceed the design specification as indicated
on the specification plate attached to the side of the exhauster unit. Switch OFF the exhauster unit, remove
the ammeter and re-fit the terminal block cover.
The above operation may be carried out in the starter/isolator panel by checking the current at
the exhauster unit connection terminals if that is more convenient.
10. Leave isolator switch ON and HAND/OFF/AUTO selected to AUTO.
Duplex exhauster units
1. Repeat all steps detailed above on both exhauster units.
2. Designate a particular exhauster unit as “Duty” by selection of the duty selector switch.
3. Select a remote ON/OFF switch to ON, and check that the designated exhauster unit operates. Select
remote ON/OFF switch to OFF.
4. Repeat Steps 2 to 3 with the other exhauster unit selected.
5. Select a remote ON/OFF switch to ON and run the “Duty” exhauster unit.
6. Select the “DUTY” exhauster unit HAND/OFF/AUTO switch to OFF and ensure that the “Standby”
exhauster unit automatically starts. If necessary adjust the pump failure pressure switch.
7. Repeat Steps 5 and 6 with the other exhauster unit selected.
Simulation of peak demand, resulting in both exhauster units simultaneously operating, is
achieved by carrying out the procedure described below in section
Setting the duplex peak
demand condition .
Instruction book
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