FLECK 5810 & 5812 XTR2 Water Softener Control Valve Service Manual

Service manual for FLECK 5810 and 5812 XTR2 water softener or filter control valves covering installation, programming, troubleshooting, and specifications.

Brand: Fleck
Category: Water heater
Document type: Service Manual
Language: English
Pages: 36
File format: PDF
File size: 8.1 MB
Published: 29 October, 2026
Updated: 29 October, 2026
MD5 checksum: 1E05528EDEC471E4377A341CC73E5F7A
PDF: FLECK 5810 & 5812 XTR2 Water Softener Control Valve Service Manual PDF

About this manual

This service manual provides detailed instructions for the FLECK 5810 and 5812 XTR2 water softener or filter control valves. It covers operating parameters, installation procedures, and the features of the XTR2 touchscreen control interface. The document includes guidance on master settings programming, startup flushing, system disinfection, and troubleshooting alarms and errors.

What's inside

Operating Parameters
Installation
Touchscreen Control Features
Master Settings Programming
Startup Instructions
System Disinfection
Alarms and Errors
Troubleshooting
Control Valve Assembly
Wiring Diagram

Specifications

Minimum Pressure	20 psi/1.4 bar/138 kPa
Maximum Pressure	125 psi/8.61 bar/861 kPa
Minimum Water Temperature	34°F/1°C
Maximum Water Temperature	110°F/43°C
Input Voltage	100-240 VAC
Output Voltage	12 VDC
Output Current	2.0 amps

Frequently asked questions

What is the maximum pressure rating for the FLECK 5810 & 5812?

The maximum pressure rating is 125 psi (8.6 bar).

What is the minimum water temperature required for operation?

The minimum water temperature required is 34°F (1°C).

What voltage does the controller operate on?

The controller operates on a 12-volt DC power supply.

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