Hydrotech 6700 Valve Upflow Automatic Water Softeners Operation Manual - Manual (Page 2)

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Model 6700 Programming Chart - Customer Use
To enter programming mode push and hold Program Program button for 5 seconds.
Water Hardness - Grains per Gallon will appear (default: 24)
*Enter water hardness*
Program - System Capacity - Grain Capacity
(defaults: unit 6700MIU-844-75 (0.75 cu. Ft.) - 18 kilograins)
(defaults: unit 6700MIU-948-100 (1.0 cu. Ft.) - 24 kilograins)
(defaults: unit 6700MIU-1047-125 (1.25 cu. Ft.) - 30 kilograins)
(defaults: unit 6700MIU-1054-150 (1.5 cu. Ft.) - 36 kilograins)
(defaults: unit 6700MIU-1252-200 (2.0 cu. Ft.) - 48 kilograins)
(defaults: unit 6700MIU-1450-250 (2.5 cu. Ft.) - 60 kilograins)
Program - Regen Time - time when unit regenerates (default: 12:00 a.m.)
Program - Cycle #2 - Brine Making time (default: 120 min.)
Program - Cycle #3 - Brine Rinse step (default: 60 min.)
Program - Cycle #4 - Backwash (default: 10 min.)
Program - Cycle #5 - Rapid Rinse (default: 10 min.)
Program - Time of day should alternate with soft water volume remaining value on the display.
Unit is now programmed for usage.
Performance and Specifications
Upflow Capacity at Various Salt Dosages Service Flow Backwash Resin Mineral Brine Brine Tank Shipping
Metered grains Rate (2) Flow Rate Volume Tank Size (3) Tank Size (3) Salt Capacity Weight
Model @15lb/cf @10lb/cf (1) @6lb/cf @3lb/cf USGPM USGPM cu. ft. inches inches Lbs. Lbs.
6700MIU-844-75 22,500 18,000 12,750 9,750 8 1.5 0.75 8 x 44 18 x 33 335 70
6700MIU-948-100 30,000 24,000 17,000 13,000 10 2.0 1.00 9 x 48 18 x 33 335 85
6700MIU-1047-125 37,500 30,000 21,250 16,250 12 2.4 1.25 10 x 47 18 x 33 335 110
6700MIU-1054-150 45,000 36,000 25,500 19,500 12 2.4 1.50 10 x 54 18 x 33 335 125
6700MIU-1252-200 60,000 48,000 34,000 26,000 13 3.5 2.00 12 x 52 18 x 33 335 150
6700MIU-1450-250 75,000 60,000 42,500 32,500 13 5.0 2.50 14 x 50 21 x 36 335 190
ADDITIONAL INFORMATION: Operating Temperature Range = 34° to 110°F (1° to 43°C). Operating Pressure Range = 20 to 120 psi (1.37 to 8.27 bar). The manufacturer reserves the right to make product
improvements which may deviate from the specifications and descriptions shown above, without obligation to change previously manufactured products or to note the change.
CAUTION: These products are not intended to be used to treat water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
NOTES:
(1) 10lb/cu.ft. salt dosage is the standard factory setting. (2) The Service Flow Rate given will not exceed a pressure drop of 15psi. (3) Dimensions of cylindrical tanks shown are diameter (or width) x height.
Cabinets shown as length x width x height.
How Your Water Conditioner Works
Hard water enters your home through the main supply line, enters your water conditioner, and passes down through a bed
of ion exchange resin which softens the water. An ion exchange process takes place in which the resin beads capture and
hold calcium and magnesium, the hardness impurities, while the water takes on sodium ions. The soft water then flows up
and into your household water line.
The system continually calculates the reserve capacity remaining based on the historical and actual water usage. When
your system regenerates, it calculates how much brine is required to fully regenerate the unit. At the regeneration time
(12:00 AM), the unit puts the calculated amount of water into the brine tank. The water contacts with the salt to form a
saturated brine solution. After 120 minutes, the unit begins the brining/rinsing process. This is followed by a backwash
cycle and rapid rinse cycle. On the days your water conditioner regenerates, the resin is automatically recharged by
passing a brine solution (salt water) through it. This reverses the ion exchange process, charging the resin with sodium
and freeing the hardness minerals. These minerals and the brine solution are then flushed away through the drain line
followed by a rapid rinse. The resin bed is again ready to soften water.