Pneumatech HTM02-01, Operation And Maintenance Manual

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Installation, Operation and Maintenance Manual
Page 18 Medical Vacuum Plant
7.1.3
Vacuum Pump Testing
Figure 7-1; Pump Control Panel
1. Switch on the main isolator to pump No.1.
2. Check the rotation and switch off the isolator.
3. Repeat this procedure for the other pump(s).
4. If the rotation of any of the pumps is incorrect, isolate the supply and reverse L1 (red) and
L3 (blue) phase wires at the pump connection box.
7.1.4
Commissioning HTM02-01 Medical Vacuum Plant
7.1.5
Triplex Pump System
Triplex systems have one Duty, one Standby and one Reserve pump.
The location of Duty, Standby and Reserve pumps is rotated automatically to ensure equal usage
of all pumps.
Each pump is sized to provide the full system design flow.
1. Switch on all isolators and allow the pumps to evacuate the vessel to the Duty cut-out of
650 mmHg.
2. Identify the Duty pump and vent the vessels, via one manual drain until the Duty pump
starts.
3. Isolate the Duty pump and continue to vent the vessels until the Standby pump starts.
4. Isolate the Standby pump and continue to vent the vessels until the Reserve pump starts.