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

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. Plug the 24-volt transformer into a 120 VAC 60 Hz outlet. This valve has four positions: 1) Backwash
2) Brine/Rinse 3) Rapid Rinse and 4) Brine Refill. When the valve is in the Service position, the extra cycle button (far
left button as shown on Figure 4) must be pressed and held for 5 seconds before it activates. Press and hold the extra
cycle button for 5 seconds to advance the valve into the “1” Backwash position. Slowly turn on the water supply and
allow the unit to backwash until the air purges out of the tank and clears the system.
14. Press the extra cycle button to advance the valve to the “2” position. Press once more to advance to the “3” position.
Press once more to advance to the “4” Brine refill position. Wait until the water level reaches 6" in the brine tank.
Water can be added to the tank to speed up the filling but the valve should be in the Brine Refill position for a
minimum of two minutes to purge the air out of the injector set.
15. Press the extra cycle button to advance the valve from the Brine Fill position through service to the “2” position
Brine/Rinse position. Verify that water is being drawn from the tank. If not, repeat step 9.
16. Press the extra cycle button to advance the valve to the “3” Rapid Rinse position and allow water to run to drain for 2
minutes.
17. Press the extra cycle button to advance the valve to the “4” Brine Fill position until there is 6” of water in the brine
tank. Press the extra cycle button to advance the valve back into the service position indicated by the red dot in upper
left corner of the display.
18. Fill the brine tank with salt.
19. 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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