Hydrotech 6700 Valve Upflow Automatic Water Softeners Operation Manual - Manual (Page 4)

Figure 3
Tank Fill
Brine Making
Brine/Rinse
Backwash
Water Hardness
System Capacity
Regeneration Time
Low Battery
Service Indicator:
Valve in Service - Arrow On
Manual Regeneration Tonight - Arrow Flashing
Time of Day Display Indicator
Reserve Indicator:
Volume Remaining Above Reserve - Arrow On
Volume Remaining at or Below Reserve - Arrow Flashing
Flow Indicator:
Arrow Flashes with Water Flow
Regeneration Indicator:
Valve in Regeneration - Arrow On
Volume Remaining Display Indicator
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2
3
4
5
6
11. Once the valve has reached the SERVICE position, normal operation is resumed. In normal operation the Time of Day
and, if flow meter equipped, Volume Remaining displays alternate being viewed. Set the Time of Day display by
depressing the Up or Down Set Button to the correct time (see Figure 3). Note: the Time of Day display must be set
correctly to either a.m. or p.m.
12. Flow Meter Equipped Valves Only - The Volume Remaining Display is the volume of water (in gallons) remaining prior to
regeneration, including any reserve capacity. Without any water usage, the Meter Arrow should be either off or on, but
not changing. Open a soft water tap. The Meter Arrow should begin flashing at a rate that varies with flow rate. Close
the tap after 3-5 gallons of water flow.
13. Initiate a manual regeneration cycle by pressing and holding the extra cycle button for 5 seconds. The piston will
move to the 1st cycle which is Tank Fill. Press the extra cycle button again and the piston will advance to the 2nd
cycle which is Brine Making. Press the extra cycle again and the piston will advance to the 3rd cycle which is
Brine/Rinse. Press the extra cycle button again and the piston will advance to the 4th cycle which is Backwash. Allow
the water to run to drain for 3-4 minutes to purge the air out of the tank. Press the extra cycle button again and the
piston will advance to the 5th cycle which is Rapid Rinse. Press the extra cycle button again and the piston will
advance to the Service position.
14. Add water to the brine tank to the top of the air check. Manually step the valve to the BRINE/RINSE position (see Step
13) and allow the valve to draw water from the brine until it stops.
Note: the air check will check at approximately the midpoint of the screened intake area.
15. Manually step the valve back to the SERVICE position.
16. With the valve in service, check that there is about 1” of water above the grid in the brine tank, if used.
17. Fill the brine tank with salt.
18. A 9V alkaline battery is recommended to be installed at all times for proper valve operation. The control will indicate
when the battery needs to be replaced by turning on the Low Battery LED.
(Installation Tip: The 6700 Softener should not be allowed to regenerate at the same time as any other water
treatment units. If adjustment is required, consult programming chart to adjust default regeneration time.)
Optional Sanitization Procedure: We recommend that all new water conditioners be disinfected as part of the startup.
Sanitization is achieved by the application of chlorine in the regeneration cycle of the conditioner. A liquid solution of
5.25% sodium hypochlorite (commonly referred to as household bleach) is recommended as a suitable disinfectant. Use
only unscented products. For every cubic foot of resin in the softener, pour approximately two (2) tablespoons of sodium
hypochlorite into the brine well tube. Press and hold the EXTRA CYCLE button and allow the brine tank to fill with the
standard amount of water. Press the EXTRA CYCLE button again twice to advance the valve to the Brine/Rinse position.
Allow softener to complete the Brine/Rinse cycle, then press EXTRA CYCLE button three times to advance valve back to
service position.
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