2025 Nelsen Corporation Catalog - Catalog - Page 40
2 Commercial System Valve Configurations
Commercial Water Softeners
System 4 - Single Valves
System 7
Time Clock (1 Valve)
Meter Alternating (2 Valves)
The control regenerates on the days set in Regeneration Day
Override, at the Regeneration Time set in Regeneration Time.
This is a 2 unit system, with only one unit having a meter and only
one unit in service. When the volume of treated water drops to
zero (0) in the unit in service, it requests regeneration. This causes
the unit in standby to move to service. Then the unit requesting
regeneration moves to standby and begins regeneration.
Meter Delayed (1 Valve)
The control regenerates on the day the available volume of
treated water drops to less than the reserve volume. Regeneration
starts at the Regeneration Time.
Meter Immediate (1 Valve)
The control regenerates immediately when the available volume of
treated water drops to zero (0).
System 5
Meter Immediate (Interlock)
FLECK NXT2 SYSTEMS — 2 TO 8 CONTROL VALVES
CLACK WS2HF & WS3 SYSTEMS — 2 TO 14 CONTROL VALVES
This is a 2 to 4 unit system, each unit having a meter, and all in
service. Only one unit is allowed in regeneration at a time. A unit
regenerates immediately when the available volume of treated
water drops to zero (0) and no other unit is in regeneration.
System 6
Meter Immediate Series
FLECK NXT2 SYSTEMS — 2 TO 8 CONTROL VALVES
CLACK WS2HF & WS3 SYSTEMS — 2 TO 14 CONTROL VALVES
This is a 2 to 4 unit system, all in service, with one meter for the
entire system. When the entire system volume of treated water
drops to zero (0), it requests the first unit to go into regeneration.
Then, when the first unit is done regenerating, the second follows,
and so on.
System 9
Meter Alternating
FLECK NXT2 SYSTEMS — 2 TO 8 CONTROL VALVES
CLACK WS2HF & WS3 SYSTEMS — 2 TO 14 CONTROL VALVES
This is a 2 or 4 unit system, each unit having a meter, one unit in
standby and all other units in service. Only one unit is allowed in
regeneration at a time. When the volume of treated water drops to
zero (0) in the unit in service, it requests regeneration. This causes
the unit in standby to move to service. Then the unit requesting
regeneration moves to standby and begins regeneration.
System 14
Meter Progressive Flow
FLECK NXT2 SYSTEMS — 2 TO 8 CONTROL VALVES
CLACK WS2HF & WS3 SYSTEMS — 2 TO 14 CONTROL VALVES
ALL NELSEN WATER SOLUTIONS CONTROLS
This is a 3 or 4 unit system, each unit having a meter, one unit
in service and all other units in standby. As flow rates increase,
units in standby go into service. As flow rates decrease units in
service go back into standby until only one unit is in service. Only
one unit is allowed in regeneration at a time. When the volume of
treated water drops to zero (0) in the unit in service, it requests
regeneration. This causes the unit in standby to move to service.
Then the unit requesting regeneration moves to standby and
begins regeneration.
Fleck Controls Note:
1 ) All Simplex Units to have hard water bypass pistons (White).
2) All Duplex, Triplex and Quads to be NXT2 valves with No Hard Water bypass pistons (Black).
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