Pneumotronics establishes the core production systems using the Medical Vacuum Production System and Medical Air Production System sized for peak simultaneous demand. The vacuum system uses oil less rotary vane pumps in a redundant layout; for a 500 bed hospital, three pumps are installed, two running and one standby, each sized for 75 percent of peak load. Vacuum receivers provide 30 seconds of reserve capacity to prevent short cycling.
The Medical Air Production System uses oil free scroll compressors and a refrigerated dryer with a minus 40 C dew point. For hospitals with operating rooms and ICUs, a 2000 liter backup air receiver provides 10 minutes of supply during power loss until generators start.

For facilities managing their own cylinders, the Oxygen Cylinder Filling Station integrates with the central oxygen system. A three stage compressor fills cylinders to 200 bar with automatic shutoff. The manifold fills up to 12 cylinders at once, each with individual isolation.

Technical Note: Vacuum pump sizing should use a simultaneous usage factor of 0 point 5 CFM per ward bed, 2 CFM per ICU bed, and 10 CFM per operating room. The air dryer should include a dew point sensor that alerts if outlet dew point rises above minus 20 C.

Pneumotronics designs the distribution network with Medical Gas Manifolds as the interface between source systems and building piping. Each manifold includes automatic changeover between primary and secondary cylinder banks. When primary pressure drops to 10 bar, the system switches to the secondary bank and sends an alert to the Central Gas Monitoring System. Regulators deliver 4 bar for oxygen and air and minus 0 point 7 bar for vacuum with plus or minus 2 percent accuracy.

Pipeline Ball Valves are installed at key points to isolate wings or floors. Each valve is labeled and includes a visible position indicator. Valves are placed in secure but accessible service areas.

High risk areas such as operating rooms and ICUs include zone valve boxes with Emergency Oxygen Inlet Stations. The inlet uses a quick connect fitting for portable cylinders and includes a check valve to prevent backflow. A pressure gauge confirms delivery pressure before switching sources.

Technical Note: Manifold changeover should be tested monthly; switchover must occur within 5 seconds with pressure fluctuation under 10 percent. Ball valves should be operated quarterly; valves requiring more than 5 Nm torque should be serviced.

The Central Gas Monitoring System provides a single interface for hospital wide oversight. It integrates with all source equipment, manifolds, zone valves, and alarm units, collecting pressure, flow, and status data every 5 seconds. A facility schematic displays each monitored point with color coded icons for normal, warning, and alarm states.

A historian database stores 10 years of data for trend analysis and predictive maintenance. For example, increased vacuum pump cycling may indicate a leak or pump wear. Weekly trend reports are automatically generated.

Medical Gas Alarm Units are installed in mechanical rooms, nurse stations, and engineering offices. They provide audible and visual alerts and include a silence button that acknowledges but does not clear the alarm.

Technical Note: The monitoring system should run on a dedicated server with RAID 10 storage and 2 hours of backup power. Monitoring data should use a separate VLAN. Alarm units must be placed so at least one is visible and audible in each occupied area.

Pneumotronics installs Oxygen Depletion Monitors in enclosed areas where gas leaks may accumulate, including cylinder rooms, generator enclosures, mechanical rooms, and source equipment rooms. Each monitor uses an electrochemical sensor measuring 0 to 25 percent oxygen with plus or minus 0 point 5 percent accuracy.

Two alert thresholds are used: 19 point 5 percent triggers a warning and sends a notification to the Central Gas Monitoring System; 18 percent triggers an 85 dB audible alarm and a facility wide alert. In generator and cylinder rooms, monitors are interlocked with ventilation systems to activate exhaust fans at the warning level and emergency alerts at the critical level.

Anaesthesia Gas Scavenging Systems are monitored for waste gas breakthrough. Sensors in the exhaust duct trigger alerts if nitrous oxide or volatile agent levels exceed 2 ppm, and the exhaust fan increases speed automatically.

Technical Note: Oxygen depletion sensors should be calibrated monthly using certified span gas. Drift beyond plus or minus 0 point 5 percent indicates sensor end of life. Ventilation interlocks should be tested quarterly; exhaust fans must activate within 10 seconds of oxygen dropping below the warning threshold.