N2-GEN™ CPi-Plus & CPx-Plus Series — Safety Guidelines

Applies to: N2-GEN™ 2CPi-Plus, 2CPx-Plus, 4CPi-Plus, 4CPx-Plus

This article outlines the safety requirements for installing, operating, and maintaining the South-Tek N2-GEN™ CPi-Plus & CPx-Plus Series nitrogen generators. Read the full O&M manual before performing any work on the system. For safety information specific to other equipment used alongside the generator — such as external air compressors, dryers, or boosters — refer to those manufacturers' guidelines.

⚠ WarningRead the O&M manual in its entirety before installing or operating the equipment. Failure to do so may result in equipment damage, system malfunction, or personal injury.

Nitrogen Gas Safety

The N2-GEN™ CPi-Plus & CPx-Plus Series produces nitrogen (N₂) through a Pressure Swing Adsorption process. Nitrogen is not poisonous, but high concentrations displace oxygen and can cause asphyxiation.

⚠ WarningInstall the unit in a well-ventilated room that is not sealed off from normal living space air changes. Do not directly inhale nitrogen gas. During filter changes or other mechanical work, vent generator exhaust gas outside or to a large, well-ventilated area to prevent oxygen depletion.

General Safety Requirements

All personnel involved in installation, operation, or maintenance must read and fully understand the O&M manual before performing any work. The following requirements apply at all times:

• Follow safe working practices in accordance with OSHA and applicable local health and safety regulations.
• Only authorized, trained, and competent individuals may install, operate, maintain, or repair the system. Work performed by unqualified personnel voids the warranty.
• The owner is responsible for keeping the unit in safe working condition at all times.
• Use only approved replacement parts that meet or exceed original specifications.
• Only use the generator for its designed purpose. Do not tamper with or modify the equipment beyond its technical specifications.
• Contact South-Tek Systems for any issue not resolved by the O&M manual or this article.

Pressurized Gas Hazards

⚠ WarningPressurized gases are present within the generator, receiver, and product storage tanks during and after operation. Pressurized gases are dangerous and may cause serious injury or death if handled incorrectly.

• Never allow pressurized gas to exhaust from an unsecured hose. An unsecured hose can whip and cause serious injury. If a hose bursts, immediately close all isolation valves if safe to do so and power down the unit.
• Never disable or bypass any safety relief valves.
• Before performing any mechanical work — including filter changes — completely isolate incoming and outgoing pressures to the generator and fully depressurize the section to be serviced. Confirm zero pressure before opening any fittings.
• Wear safety glasses whenever the cabinet door is open while the machine is operating.
• Use hearing protection during compressor operation.

Electrical Safety

• Always disconnect the generator from supply power before performing any electrical work.
• Verify that the supply voltage matches the unit nameplate (110V or 220V / 1PH / 50–60 Hz) before connecting power for the first time.

Installation Safety

• Install the unit indoors in a nonhazardous location, upright, away from heat sources, steam, and water.
• Ambient operating temperature must remain within the rated range for your model — 40°F–85°F for CPi-Plus (integral compressor) and 40°F–90°F for CPx-Plus (external compressor).
• For 2CP-Plus wall-mounted models: secure the cabinet to the wall at both top and bottom flanges. Failure to secure both points may result in the unit falling.
• For 4CP-Plus floor-standing models: install on a hard flat surface and follow all applicable local codes for securing floor-standing equipment.
• Always install an isolation valve on each individual nitrogen supply line to allow safe depressurization during service.
• Route all condensate drain lines to a safe drain location to prevent slipping hazards.

Warranty & Unauthorized Modifications

All PLC programs are proprietary and password-protected from the factory. Do not alter any controls, instrumentation, or factory settings without prior written approval from South-Tek Systems. Unauthorized changes void all warranties and may cause system damage or malfunction. Do not adjust cut-in or cut-out pressure setpoints without first contacting South-Tek Systems.

ℹ NoteAlways follow local and site safety regulations in conjunction with the O&M manual. Correct use of the nitrogen generator is essential for personal safety and equipment longevity.

Contact South-Tek Systems

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