This article applies to legacy South-Tek Systems N2-BLAST FPS-15000 and FPS-20000 fire protection nitrogen generators.
The FPS-15000 and FPS-20000 are legacy N2-BLAST fire protection nitrogen generators designed to provide high-purity nitrogen for fire protection system supervision. These models were used to help reduce corrosion in fire protection piping by replacing oxygen-rich compressed air with nitrogen.
Supported legacy models
- FPS-15000
- FPS-20000
What these systems have in common
The FPS-15000 and FPS-20000 share the same general operating platform and are grouped together in the same legacy manual.
- Floor-standing or skid-mounted installation
- Pressure Swing Adsorption (PSA) nitrogen generation
- Touchscreen controls
- Associated air supply and storage equipment
- Air filtration
- Automatic pressure-based operation
- Safety relief valves
- Optional BlastOff leak detection
Typical operating profile
- Nitrogen purity: 95% to 99.999%, depending on system design and factory configuration
- N2 operating pressure: typically 60 to 100 PSIG
- Cabinet port connections: NPT female
- Electrical: 110-240V / 50-60Hz / 1 phase
- Ambient temperature: 40°F to 104°F
How these systems operate
These legacy models use automatic pressure-based control to produce and store nitrogen based on system demand.
- The system runs when nitrogen demand is present.
- When the storage tank reaches the cut-out pressure, the system enters standby.
- When tank pressure falls back to the cut-in point, the system automatically resumes nitrogen generation.
Associated equipment
These systems were typically installed as part of a larger packaged arrangement and may include associated equipment such as:
- Air compressor
- Refrigerant dryer
- Air receiver tank
- Nitrogen generator
- Nitrogen storage tank
- Nitrogen booster, depending on system design
Legacy support note
These are legacy fire protection models. Support documentation remains available to assist with identification, operation, maintenance, and troubleshooting. Availability of specific replacement parts or upgrade paths may vary depending on the exact model and current support status.
Before choosing a manual or procedure
Confirm the exact model number on the unit nameplate before following a procedure or ordering service parts. While the FPS-15000 and FPS-20000 share a common platform, always verify the exact model and installation arrangement before moving forward with support or maintenance decisions.
Related legacy articles
- Legacy N2-BLAST Fire Protection Systems Overview
- FPS-650 and FPS-1250 Legacy Overview
- FPS-1750, FPS-3000, and FPS-6000 Legacy Overview
Manual download
Need additional support?
- Phone: (910) 415-1880
- Email: support@southteksystems911.zendesk.com