This is an installation manual for water treatment equipment.
This manual provides step-by-step instructions for installing, programming, and maintaining the Fleck 3900 NXT water purification system. It covers safety precautions, system sizing, valve installation, electrical connections, programming settings, commissioning, and troubleshooting. The guide also includes detailed parts lists and maintenance procedures for various components.
The system is designed for industrial water treatment applications and requires trained personnel with knowledge of water conditioning and plumbing. It includes multiple valve configurations and programming options for regeneration cycles, flow rates, and system capacity.
| Manufacturer | Pentair International LLC |
|---|---|
| Product | Fleck 3900 - NXT |
| Intended Use | Industry environment use for water treatment |
| Document Version | Ref. MKT-IM-015 / B - 08.06.2018 |
The device is intended for industry environment use only and it is purpose-built for water treatment.
The person installing this equipment should have training in the Fleck series, NXT controllers and water softener installation; knowledge of water conditioning and how to determine proper controller settings; and basic plumbing skills.
Comply with the following guidelines: 2006/42/EC: machinery directive; 2014/35/UE: low voltage directive; 2014/30/UE: electromagnetic compatibility; 2011/65/CE: restriction of use of certain hazardous substances in electrical and electronic equipment (RoHS); UNI EN ISO9001 (certificate no. 95.022 SSG ICS). Meets the following technical standards: EN 55014-1; EN 55014-2; EN 61000-6-1; EN 61000-6-2; EN 61000-6-3; EN 61000-6-4; EN 61010-1.
Refer to chapter 10. Troubleshooting, page 95. If the problem persists, contact your supplier.