Service manual for the Fleck 3214NXT water‑softening valve covering operation, programming, wiring and troubleshooting.
The Fleck 3214NXT Service Manual provides detailed instructions for installing, programming, and servicing the 3214NXT valve. It includes timer operation procedures, programming flow charts, wiring diagrams, and troubleshooting guidance for multi‑valve systems.
The manual also covers safety and installation requirements such as pressure limits, temperature limits, grounding, and recommended pre‑filter use. It is intended for qualified plumbing professionals and service technicians.
| Maximum daytime operating pressure | 80 psi |
|---|---|
| Allowed installation temperature range | 32°F to 110°F (0°C to 43°C) |
| Supported valve models | 2750, 2850, 2900, 3150, 3900 |
| Flow meter paddle sizes | 1", 1.5", 2", 3" |
| Flow meter turbine sizes | 1", 1.5" |
CHG indicates that the timer is changing from one operational state to another.
An earth ground wire must be attached to the transformer using the labeled screw before installation.