Pentair FLECK 4600-SXT User guide

FLECK
4600-SXT
INSTALLER
MANUAL
WATER PURIFICATION

Installer Manual Fleck 4600 SXT - Table of contents
2 / 98 Ref. MKT-IM-028 / A - 03.07.2018
Table of contents
1. Generalities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1. Scope of the documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1.2. Release management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3. Manufacturer identifier, product . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4. Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.5. Abbreviations used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.6. Norms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.6.1. Applicable norms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.6.2. Available certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.7. Procedure for technical support . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.8. Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.9. Limitation of liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.10. Scan & Service application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2. Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1. Safety pictograms definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2. Serial label location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3. Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3.1. Personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3.2. Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4. Hygiene and sanitization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4.1. Sanitary issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4.2. Hygiene measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.1. Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3.1.1. Performance flow rate characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2. Outline drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3.3. Description and components location . . . . . . . . . . . . . . . . . . . . . . .17
3.4. System regeneration cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4.1. Down flow regeneration cycle (5-cycles operation). . . . . . . . . . . . . . . . 18
3.4.2. Filter cycle (3-cycles operation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.5. Configurations for softener and filter . . . . . . . . . . . . . . . . . . . . . . .21
3.5.1. Softener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.5.2. Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.6. Options available on the valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

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4. System sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
4.1. Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.1.1. Injector/DLFC/BLFC-Valve configuration . . . . . . . . . . . . . . . . . . . . . . . 24
4.2. Sizing a softener (single unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.2.1. Parameters to be considered. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.2.2. Determining the required volume of resin . . . . . . . . . . . . . . . . . . . . . . 26
4.2.3. Resin exchange capacity and capacity of the unit . . . . . . . . . . . . . . . . 27
4.2.4. Valve configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.2.5. Cycle time calculation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.3. Salt amount definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.4. Injector flow rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.4.1. 1600 Injectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.4.2. 1650 Injectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
5.1. Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.2. Safety notices for installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.3. Installation environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.3.1. General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.3.2. Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.3.3. Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.3.4. Mechanical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.4. Integration constraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.5. Valve connection to piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.5.1. Top-mounted valve installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.6. Block diagram and configuration example . . . . . . . . . . . . . . . . . . 40
5.7. Regeneration types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.7.1. Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.8. By-passing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.9. Drain line connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
5.10. Overflow line connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.11. Brine line connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

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6. Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.1. Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.2. Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
6.3. Setting the time of the day (TD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.4. Basic programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.4.1. Day of Override (DO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.4.2. Regeneration time (RT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.4.3. Feed Water Hardness (H). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.4.4. Reserve capacity (RC) or (SF). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.4.5. Current day of the week (CD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.5. Master programming mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.5.1. Master programming mode chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.5.2. Entering master programming mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
6.5.3. Display format mode (DF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.5.4. Regeneration mode (VT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.5.5. Regeneration control type (CT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.5.6. Number of tanks (NT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.5.7. Tank in service (TS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.5.8. Unit capacity (C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.5.9. Feedwater hardness (H). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
6.5.10. Reserve selection (RS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
6.5.11. Days override (DO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
6.5.12. Regeneration time (RT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
6.5.13. Regeneration cycle step duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
6.5.14. Day of week (Dn, n = 1 to 7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
6.5.15. Current day (CD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
6.5.16. Flow meter type (FM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
6.5.17. Meter pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
6.6. Filter programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
6.7. Diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
6.7.1. Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
6.7.2. Current flow rate (FR). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
6.7.3. Peak flow rate (PF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
6.7.4. Hours since last regeneration (HR). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
6.7.5. Volume since last regeneration (VU). . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
6.7.6. Reserve capacity (RC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
6.7.7. Software version (SV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
6.8. Resetting the controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
6.8.1. Soft reset (SR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
6.8.2. Hard reset (HR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

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7. Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
7.1. Water filling, draining and waterproofness inspection . . . . . . . . . 61
7.1.1. Activating the softener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
7.2. Sanitization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
7.2.1. Disinfection of water softeners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
7.2.2. Sodium or calcium hypochlorite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
7.2.3. Electro chlorination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
8. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
8.1. Display during operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
8.1.1. During regeneration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
8.2. Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
8.3. Manual regeneration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
8.3.1. Manual delayed regeneration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
8.3.2. Immediate regeneration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
8.3.3. To advance regeneration cycles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
8.4. Operation during a power failure . . . . . . . . . . . . . . . . . . . . . . . . . . 65
9. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
9.1. Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
9.1.1. Use original spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
9.1.2. Use original approved lubricants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
9.1.3. Maintenance instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
9.2. Cleaning and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
9.2.1. First steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
9.2.2. Controller replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
9.2.3. Piston and/or brine valve replacement . . . . . . . . . . . . . . . . . . . . . . . . . 68
9.2.4. Seals and spacers cartridge replacement . . . . . . . . . . . . . . . . . . . . . . 70
9.2.5. Microswitches and/or the drive cam replacement. . . . . . . . . . . . . . . . 72
9.2.6. Controller motor replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
9.2.7. Brine cam replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
9.2.8. Injector cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
9.2.9. BLFC cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
9.2.10. Valve on tank assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

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10. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
10.1. Error detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
10.2. Error types and causes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
10.2.1. Motor stall / cam sense error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
10.2.2. Motor run-ON error / cycle sense error . . . . . . . . . . . . . . . . . . . . . . . . 82
10.2.3. Regeneration failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
10.2.4. Memory error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
11. Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
11.1. Power head parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
11.2. Valve parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
11.3. Safety brine valve parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
11.4. Safety brine valves list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
11.5. Bypass and coupling parts lists . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
11.5.1. Bypass stainless steel 1" BSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
11.5.2. Bypass brass 1" BSP with mixing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
11.5.3. Plastic residential bypass and coupling parts list . . . . . . . . . . . . . . . . 94
11.6. Plastic turbine meter assembly parts list . . . . . . . . . . . . . . . . . . . 95
11.7. CE compliance components list . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
12. Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97

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1. Generalities
1.1. Scope of the documentation
The documentation provides the necessary information for appropriate use of the product. It informs
the user to ensure efficient execution of the installation, operation or maintenance procedures.
The content of this document is based on the information available at the time of publication. The
original version of the document was written in English.
For safety and environmental protection reasons, the safety instructions given in this documentation
must be strictly followed.
This manual is a reference and will not include every system installation situation. The person
installing this equipment should have:
• training in the Fleck series, SXT controllers and water softener installation;
• knowledge of water conditioning and how to determine proper controller settings;
• basic plumbing skills.
This document is available in other languages on www.pentairaquaeurope.com/product-finder/
product-type/control-valves.
1.2. Release management
1.3. Manufacturer identifier, product
Manufacturer: Pentair International LLC
Avenue de Sevelin 18
1004 Lausanne
Switzerland
Product: Fleck 4600 SXT
1.4. Intended use
The device is intended to be used for domestic applications only and it is purpose-built for water
treatment.
Revision Date Authors Description
A03.07.2018 BRY/KVA First edition.

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1.5. Abbreviations used
Assy....................................................................................Assembly
BLFC ..................................................................................Brine Line Flow Controller
BV.......................................................................................Brine Valve
CW......................................................................................Cold Water
DF.......................................................................................Down Flow
Distr ...................................................................................Distribution
DLFC ..................................................................................Drain Line Flow Controller
HW......................................................................................Hot Water
Imm....................................................................................Immediate
Inj .......................................................................................Injector
LWU....................................................................................Low Water Use
N/A .....................................................................................Not Available
PN ......................................................................................Part Number
Regen.................................................................................Regeneration
S&S ....................................................................................Seals & Spacers
SBV.....................................................................................Safety Brine Valve
STD.....................................................................................Standard
Sys......................................................................................System
VB.......................................................................................Valve Body
1.6. Norms
1.6.1. Applicable norms
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.

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1.6.2. Available certificates
1.7. Procedure for technical support
Procedure to follow for any technical support request:
ACollect the required information for a technical assistance request.
→ Product identification (see 2.2. Serial label location, page 11 and 9.1. Recommendations,
page 66);
→ Problem description of the device.
BPlease refer to the chapter, “Troubleshooting”, page 79. If the problem persists contact your
supplier.
1.8. Copyright
© 2018 Pentair International Sàrl All rights reserved.
1.9. Limitation of liability
Pentair Quality System EMEA products benefit, under specific conditions, from a manufacturer
warranty that may be invoked by Pentair’s direct customers. Users should contact the vendor of this
product for applicable conditions and in case of a potential warranty claim.
Any warranty provided by Pentair regarding the product will become invalid in case of:
• improper installation, improper programming, improper use, improper operation and/or
maintenance leading to any kind of product damages;
• improper or unauthorized intervention on the controller or components;
• incorrect, improper or wrong connection/assembly of systems or products with this product and
vice versa;
• use of a non-compatible lubricant, grease or chemicals of any type and not listed by the
manufacturer as compatible for the product;
• failure due to wrong configuration and/or sizing.
Pentair accepts no liability for equipment installed by the user upstream or downstream of Pentair
products, as well as for process/production processes which are installed and connected around or
even related to the installation. Disturbances, failures, direct or indirect damages that are caused by
such equipment or processes are also excluded from the warranty. Pentair shall not accept any
liability for any loss or damage of profits, revenues, use, production, or contracts, or for any indirect,
special or consequential loss or damage whatsoever. Please refer to the Pentair List Price to know
more about terms and conditions applicable to this product.
•CE;
•DM174;
•ACS.
Access to all certifications:

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1.10. Scan & Service application
Scan & Service mobile application is the ideal support for the maintenance person in his daily
business. A simple scan of an identification (ID) label (1) present on the valve with a smartphone gives
an instantaneously access to all updated information related to the product, such as:
• valve’s and tanks detailed configuration;
•manuals;
• spare parts lists;
• troubleshooting recommendations;
• multi-lingual videos, detailing how to best service a part;
• informations about new products, latest technologies, novelties about the Blue Network
program, etc....
No. Operation
ADownload the application "Scan & Service" from or in a
smartphone (4).
BOpen the application "Scan & Service".
CScan the bleam (3) stuck on the valve (2).
DNavigate to find information.

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2. Safety
2.1. Safety pictograms definition
2.2. Serial label location
Note
Ensure that the serial label and the safety tags on the device are completely legible and
clean. If necessary, replace them with new tags and put them in the same places.
Caution
Warns of a risk of minor injury or major
material damage to the device or
environment.
Warning
Warns against serious personal injury
and damage to health.
Danger
Warns against serious personal injury or
death.
Mandatory
Standard or measure to apply.
Note
Comment.
Prohibition
Restriction to be observed.
Model
Electrical rating
Part number
Production date
Production order
Serial number

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2.3. Hazards
All the safety and protection instructions contained in this document must be observed in order to
avoid temporary or permanent injury, damage to property or environmental pollution.
At the same time, any other legal regulations, accident prevention and environmental protection
measures, as well as any recognized technical regulations relating to appropriate and risk-free
methods of working which apply in the country and place of use of the device must be adhered to.
Any non-observation of the safety and protection rules, as well as any existing legal and technical
regulations, will result in a risk of temporary or permanent injury, damage to property or
environmental pollution.
2.3.1. Personnel
Only qualified and professional personnel, based on their training, experience and instruction as well
as their knowledge of the regulations, the safety rules and operations performed, are authorized to
carry out necessary work.
2.3.2. Material
The following points must be observed to ensure proper operation of the system and the safety of
user:
• be careful of high voltages present on the transformer (100 - 240 V);
• do not put your fingers in the system (risk of injuries with moving parts and shock due to electric
voltage).
2.4. Hygiene and sanitization
2.4.1. Sanitary issues
Preliminary checks and storage
• Check the integrity of the packaging. Check that there is no damage and no signs of contact with
liquid to make sure that no external contamination occurred;
• the packaging has a protective function and must be removed just before installation. For
transportation and storage appropriate measures should be adopted to prevent the
contamination of materials or objects themselves.

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Assembly
• Assemble only with components which are in accordance with drinking water standards;
• after installation and before use, perform one or more manual regenerations in order to clean
the media bed. During such operations, do not use the water for human consumption. Perform a
disinfection of the system in the case of installations for treatment of drinking water for human
use.
Note
This operation must be repeated in the case of ordinary and extraordinary maintenance. It
should also be repeated whenever the system remains idle for a significant time.
2.4.2. Hygiene measures
Disinfection
• The materials used for the construction of our products meet the standards for use with potable
water; the manufacturing processes are also geared to preserving these criteria. However, the
process of production, distribution, assembly and installation, may create conditions of bacterial
proliferation, which may lead to odor problems and water contamination;
• it is therefore strongly recommended to sanitize the products. See 7.2. Sanitization, page 62;
• maximum cleanliness is recommended during the assembly and installation;
• for disinfection, use Sodium or Calcium Hypochlorite and perform a manual regeneration.

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3. Description
3.1. Technical specifications
Design specifications/ratings
Valve body ..........................................................................Brass
Rubber components ..........................................................EP or EPDM
Weight (valve with controller) ...........................................2.5 kg
Recommended operating pressure ..................................1.4 - 8.6 bar
Maximum inlet pressure ...................................................8.6 bar
Hydrostatic test pressure..................................................20 bar
Water temperature std......................................................1 - 43°C
Water temperature for HW volumetric .............................1 - 65°C
Water temperature for HW time clock..............................1 - 82°C
Ambient temperature........................................................5 - 40°C
Flow rates (3.5 bar inlet - valve only)
Continuous (Δp = 1 bar) .....................................................4.5 m3/h
Peak (Δp = 1.8 bar).............................................................5.9 m3/h
Cv*......................................................................................5.2 gpm
Kv*......................................................................................4.5 m3/h
Maximum backwash (Δp = 1.8 bar) ...................................1.6 m3/h
*Cv : Flow rate in gpm across the valve at a pressure drop of 1 psi at 60°F.
*Kv : Flow rate in m3/h across the valve at a pressure drop of 1 bar at 16°C.
Valve connections
Tank thread........................................................................2½" - 8NPSM
Inlet/Outlet.........................................................................¾" or 1"
Riser tube ..........................................................................26.7 mm O.D., 1.05" tube
Drain line ...........................................................................½" O.D.
Brine line (1650).................................................................⅜"
Electrical
Power supply .....................................................................230 VAC, 50/60 Hz, 15 VA
Transformer output voltage ..............................................24 VAC, 10 VA max.
Motor input voltage............................................................24 VAC
Controller input voltage ....................................................24 VAC
Controller max. power consumption ................................5 W
Protection rating................................................................IP 22
Transient overvoltages......................................................within the limits of category II
Pollution degree ................................................................3
Temporary overvoltages must be limited in duration and in frequency.

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Environmental conditions
• Indoor use only;
• temperature from 5°C to 40°C;
• maximum relative humidity 80% for temperatures up to 31°C decreasing linearly to 50% relative
humidity at 40°C;
• mains supply voltage fluctuations up to ±10% of the nominal voltage.
3.1.1. Performance flow rate characteristics
The graph shows the pressure drop created by the valve itself at different flow rates. It allows to
predetermine the maximum flow rate going through the valve depending on the system settings (inlet
pressure etc). It also allows to determine the valve pressure drop at a given flow rate, and therefore
to evaluate the system pressure drop vs flow rate.
FLOW RATE VS PRESSURE DROP
Backwash
Service
Flow rate [m3/h]
Pressure drop [bar]

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3.2. Outline drawing

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3.3. Description and components location
Drive cam
Brine line
Injector block
Regen button
Outlet
Piston
Drain line
Mixing device
Inlet
*Meter
Brine valve
Up button
Down button
Controller
*Not included in case of timeclock
LCD screen
Brine cam Motor

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3.4. System regeneration cycle
Note
This valve allows to do down flow regenerations.
3.4.1. Down flow regeneration cycle (5-cycles operation)
Service — normal use
Untreated water is directed down through the resin bed and up through the riser tube. The hardness
ions attach themselves to the resin and are removed from the raw water being exchanged on the resin
beads against sodium ions. The water is conditioned as it passes through the resin bed.
Backwash — cycle C1
The flow of water is reversed by the valve and directed down the riser tube and up through the resin
bed. During the backwash cycle, the bed is expanded and debris is flushed to the drain, while the
media bed is remixed.
Brine draw & slow rinse — cycle C2
The controller directs water through the brine injector and brine is drawn from the brine tank. The
brine is then directed down through the resin bed and up through the riser tube to the drain. The
hardness ions on the resin beads are replaced by sodium ions and are sent to the drain. The resin is
regenerated during the brine cycle. Afterwards the slow rinse phase starts.
Second backwash — cycle C3 (Double backwash units only)
The flow of water is reversed by the valve and directed down the riser tube and up through the resin
bed. During the backwash cycle, the bed is expanded and debris is flushed to the drain, while the
media bed is remixed.
Rapid rinse — cycle C4
The valve directs water down through the resin bed and up through the riser tube to the drain. Any
residual brine is rinsed from the resin bed, while the media bed is recompacted.
Brine tank refill — cycle C5
Water is directed to the brine tank, at a rate controlled by the refill controller [BLFC], to create brine
for the next regeneration. During brine refill, treated water is already available at the valve outlet.
Note
For illustration purpose only. Always verify inlet and outlet marking on the valve.

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From brine
tank
C2
BRINE DRAW & SLOW RINSE
C1
BACKWASH
SERVICE
NORMAL USE
C4
RAPID RINSE
Valve
C5
BRINE REFILL
C3
SECOND BACKWASH
(Double backwash units only)
Outlet
Drain
Inlet
Valve
Outlet Inlet
Valve
Outlet Inlet
Valve
Outlet Inlet
Valve
Outlet Inlet
Valve
Outlet Inlet
To brine tank
Drain
Drain
Drain

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3.4.2. Filter cycle (3-cycles operation)
Service — normal use
Untreated water is directed down through the media and up through the riser tube. The impurities are
retained by the media. The water is filtered as it passes through the media.
Backwash — cycle C1
The flow of water is reversed by the valve and directed down through the riser tube and up through
the media. During the backwash cycle, the media is expanded and debris is flushed to the drain.
Rapid rinse — cycle C2
The valve directs water down through the media and up through the riser tube to the drain. The media
is recompacted.
Note
For illustration purpose only. Always verify inlet and outlet marking on the valve.
C2
RAPID RINSE
C1
BACKWASH
SERVICE
NORMAL USE
Valve
SERVICE
NORMAL USE
Outlet Inlet
Valve
Outlet Inlet
Valve
Outlet Inlet
Valve
Outlet Inlet
Drain
Drain