The Fleck 5600 control valve (F5600C-CSA) is a mechanical timer valve built for residential water softeners up to 12 inches in diameter, using down-flow regeneration and a 12-day programmable timer. This standard configuration includes a #1 injector for brine draw, no drain line flow control, and works with 3/4", 1", or 1-1/4" plumbing connections.
SPECIFICATIONS
Fleck 5600 Timer Valve Technical Details
| Model Number | F5600C-CSA (5600 5 Cycle Standard Softener Timer) |
| Valve Body Material | Fiber-reinforced polymer (non-corrosive, UV-resistant) |
| Inlet/Outlet Connections | 3/4", 1", or 1-1/4" NPSM |
| Flow Rate (Continuous) | 20 GPM at 15 psi drop, 26 GPM peak at 25 psi drop |
| Regeneration Type | Down-flow, mechanical 12-day timer (180 min available) |
| Operating Pressure | 20-125 psi working, 300 psi hydrostatic maximum |
| Temperature Range | 34° - 110° F |
| Power Requirements | 24V, 110V, or 220V (50/60 Hz, 3VA max consumption) |
INSTALLATION & USE
Setting Up Your Fleck 5600 Timer Valve
- Mount the valve to a 2-1/2" - 8 NPSM tank opening using the appropriate distributor pilot (0.8125" or 1.050" pipe OD), ensuring the valve body is properly oriented for down-flow regeneration.
- Connect the 1/2" NPTF drain line and 3/8" brine line from the 1600 injector system to your brine tank, verifying the #1 injector is installed in the removable injector/drain module.
- Program the 12-day mechanical timer for your desired regeneration schedule, adjusting brine fill time as the only modifiable cycle parameter (other cycles are fixed in this standard configuration).
- Connect inlet/outlet plumbing at your chosen size (3/4", 1", or 1-1/4"), wire the appropriate voltage (24V, 110V, or 220V), and verify proper operation through a manual regeneration cycle.
COMPATIBILITY
Recommended Applications for the 5600 Valve
The Fleck 5600 timer valve is designed for water softeners in 6-12 inch diameter tanks, and can also be used on iron filters, sediment filters, carbon filters, and neutralizing filters in 6-10 inch tanks. The #1 injector configuration works with standard residential brine tanks and provides adequate draw for most softening resin beds. This is a down-flow regeneration valve only (not the up-flow model), so verify your system design requires down-flow before ordering. The valve does not include a drain line flow control (DLFC), which is acceptable for most municipal drain systems but may not meet code in certain jurisdictions requiring reduced drain flow rates.
🔧 Pro tip: The 5600's injector and brine valve assembly can be removed and serviced from the exterior without disassembling the entire valve body. Keep a spare #1 injector and brine piston on hand for quick maintenance without taking the system offline for extended periods.
