Pentair FLECK 3900 NXT

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Installer Manual Fleck 3900 - NXT - Description

Ref. MKT-IM-015 / B - 08.06.2018 19 / 126

Note

For illustration purpose only. Always verify inlet and outlet marking on the valve.

From brine

tank

BRINE DRAW & SLOW RINSE

BACKWASH

SERVICE

NORMAL USE

BRINE TANK REFILL

Valve

PAUSE & DELAY

RAPID RINSE

Outlet

Drain

Inlet

Valve

Outlet Inlet

Valve

Outlet Inlet

Valve

Outlet Inlet

Valve

Outlet Inlet

Valve

Outlet Inlet

To brine tank

Drain

Main Page

Table of Contents2
Generalities7
Scope of the Documentation7
Release Management7
Manufacturer Identifier, Product7
Intended Use7
Abbreviations Used8
Norms8
Applicable Norms8
Available Certificates8
Procedure for Technical Support9
Copyright9
Limitation of Liability9
Scan & Service Application10
Safety11
Safety Pictograms Definition11
Serial Label Location11
Hazards12
Personnel12
Material12
Hygiene and Sanitization12
Sanitary Issues12
Hygiene Measures13
Description14
Technical Specifications14
Performance Flow Rate Characteristics16
Outline Drawing16
Components Description and Location17
System Regeneration Cycle18
DF Regeneration Cycle (5-Cycles Operation)18
UF Regeneration Cycle (5-Cycles Operation)20
Filter Cycle (3-Cycles Operation)22
Injector Block Position for DF and UF Configurations24
System Sizing25
Recommendations25
Injector/Dlfc/Blfc-Valve Configuration25
Sizing a Softener (Single Unit)25
Parameters to be Considered25
Determining the Required Volume of Resin27
Resin Exchange Capacity and Capacity of the Unit28
Valve Configuration30
Cycle Time Calculation31
Defining Salt Quantities33
1800 Injector Flow Rates34
Installation37
Warnings37
Safety Notices for Installation37
Installation Environment38
General38
Water38
Electrical38
Mechanical39
Integration Constraints39
Valve Connection to Piping40
Top-Mounted Valve Installation40
Side-Mounted Valve Installation42
Block Diagram and Configuration Example43
System Types44
Single Valve (System #4)45
Multiple Valves with Lockout (System #5)45
Multiple Valves with Consecutive Regenerations (System #6)46
Duplex Alternating (System #7)46
Multiple Valves, Alternating (System #9)47
Multiple Valves, Demand (System #14)47
Valve Connection to Piping51
Electrical Connections52
Connections for Multiple Valves53
Bypassing54
Drain Line Connection55
Overflow Line Connection56
Brine Line Connection56
Programming57
Display57
During Service57
Commands57
Setting the Time of the Day58
Basic Programming58
Language Setting58
Inlet Water Hardness59
Regeneration Days Override59
Regeneration Start Time59
Master Programming Mode60
Master Programming Mode Chart60
Entering Master Programming Mode64
Language Setting64
System Type64
Valve Address in the System65
System Size65
Regeneration Type66
Valve Type66
Regeneration Flow66
Remote Started Regeneration67
Display Format67
System Capacity68
Safety Coefficient68
Inlet Water Hardness68
Trip Points Setting68
Regeneration Days Override70
Regeneration Start Time70
Programming Regeneration Cycle Times71
Auxiliary Relay/Chemical Pump71
Flow Meter Selection73
Parameters Saving74
Diagnostic74
Commands74
Current Flow Rate74
Peak Flow Rate74
Totalizer75
Hours between Last Two Regenerations75
Hours Since Last Regeneration75
Volume Remaining75
Valve Position76
Software Version76
Resetting the Controller77
Partial Reset77
Hard Reset77
Commissioning78
Water Filling, Draining and Waterproofness Inspection78
Activating a Single Valve System (System #4)78
Activating a Multiple Valves System79
Sanitization79
Disinfection of Water Softeners79
Sodium or Calcium Hypochlorite80
Electro Chlorination80
Operation81
Display81
During Service81
During Regeneration81
LED Status81
Recommendations82
Manual Regeneration82
Manual Delayed Regeneration82
Immediate Regeneration82
To Advance Regeneration Cycles82
Operation During a Power Failure82
Maintenance83
Recommendations83
Use Original Spare Parts83
Use Original Approved Lubricants83
Maintenance Instructions83
Cleaning and Maintenance83
First Steps83
Replacing the Upper/Lower Power Head Motor84
Replacing Micro-Switches85
Replacing the Upper Piston And/Or Seal and Spacer Kit86
Replacing the Lower Piston And/Or Seal and Spacer Kit88
Replacing the Upper/Lower Cam90
Cleaning the Injector91
Cleaning the BLFC92
Cleaning the DLFC93
Valve on Tank Assembly94
Troubleshooting95
Error Detection95
Programming Error97
Examples of Error Displayed98
Spare Parts and Options99
BLFC Parts List99
Valve Parts List100
Upper Power Head Parts List102
Lower Power Head Parts List104
Injector Parts List106
Top Mounted Valve Distribution Systems Parts List108
Tanks 30" - 36" Flanged 6", TM, Slots 0.3 MM108
Tanks 42" - 48" Flanged 6", TM, Slots 0.3 MM109
Side Mounted Valve Distribution Systems Parts List110
Tanks 42" - 63" Flanged 6", SM, Top Distribution, DN80110
Connections110
Tanks 42" - 63" Flanged 6", SM, Bottom Distribution, DN80112
Connections112
Tanks 42" - 63" Flanged 6", SM, Top & Bottom Distribution, DN100114
Connections114
Safety Brine Valves List116
Air Checks List116
DLFC Parts List117
Meters Parts List118
Tank Adapter, Top Mounted, Threaded 6" List119
Tank Adapter, TM, Flanged 6" List120
SM Adapter List121
Kit Meter & Meter Cables List122
Other Components List123
CE Compliance Parts List123
Disposal124

Pentair FLECK 3900 NXT - Page 19

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