The 5810 and 5812 are service manuals for SXT water softener or filter control valves. This manual covers the installation, operation, and maintenance of the equipment.
This service manual provides detailed instructions for installing, programming, and maintaining the FLECK 5810 & 5812 SXT control valves used in water softening or filtration systems. It includes operating parameters, safety warnings, installation steps, troubleshooting, and wiring diagrams. The manual also covers user programming, system disinfection, and care of the brine tank. It is intended for technicians servicing the valve, not for general users installing the system.
The valves are designed for upflow/downflow applications and require a minimum of 20 psi water pressure and 120 VAC electrical supply. Installation must comply with local plumbing and electrical codes, and the unit must be installed in a temperature range of 34°F to 120°F. The manual includes dimensional drawings, flow diagrams, and diagnostic data viewing instructions.
| Minimum Water Pressure | 20 psi (1.4 bar/138 kPa) |
|---|---|
| Maximum Water Pressure | 125 psi (8.61 bar/861 kPa) |
| Minimum Water Temperature | 34°F (1°C) |
| Maximum Water Temperature | 110°F (43°C) |
| Minimum Ambient Temperature | 34°F (1°C) |
| Maximum Ambient Temperature | 120°F (52°C) |
| Maximum Humidity | 75% |
| Input Voltage | 100-240 VAC |
| Input Frequency | 50/60 Hz |
| Output Voltage | 12 VDC |
| Output Current | 2.0 amps |
| Maximum Altitude | 2,000 meters |
A minimum of 20 psi (1.4 bar) of water pressure is required for the regeneration valve to operate effectively.
The maximum water temperature is 110°F (43°C).
The controller operates on 12-volt DC power supply. Do not operate the controller with a power supply other than the one supplied by the manufacturer for this model.
The maximum ambient temperature is 120°F (52°C).