Hydrotech 6700 XTR Downflow Valve Water Softener - Manual (Page 3)

1
How Your 6700XTR-DF Water Conditioner Works
Hard water enters your home through the main supply line, enters the softener and passes down through a resin mineral
bed which softens the water. An ion exchange process takes place in which the resin beads capture and hold calcium and
magnesium, the hardness minerals, while the water takes on sodium ions. The soft water then flows into your household
water line.
Figure 1
Valve State:
CHG (Change of State)
CHG will be displayed when the lower drive changes from one state to another in dual piston valves.
INI (Initializing)
INI will display on the screen for 30 to 45 seconds when initializing after a power failure reset or programming.
RGQ (Regeneration Queued)
RGQ indicates that the reserve has been entered in a delayed system and regeneration has been queued. When in the
main screen, press the Shift button to toggle service (SRV) with RGQ.
Service (SRV)
SRV will display when the unit is in service.
WQA Tested and
Certified against
CSA B483.1
Performance Data Sheet and Specification
Item No.
Model
Number
Capacity - Grains Service
Flow Rate
USGPM (LPM)
Maximum
Flow to Drain
USGPM (LPM)
Resin
Tank Size
inches (mm)
Brine
Tank Size
inches (mm)
Resin
Volume
cu. ft (litres)
Salt
Capacity
lbs (kg)
Shipping
Weight
lbs (kg)
@ 15 lbs
/cu.ft
Factory @
10 lbs/cu.ft
@ 6 lbs
/cu.ft
7640 6700DF-20 22,000 20,000 15,000 8.0 (30.3) 1.2 (4.5) 8 x 47 (203 x 1194) 18 x 35 (457 x 889) 0.75 (21.2) 224 (101.6) 90 (40.8)
7635 6700DF-20 (8 x 44) 22,000 20,000 15,000 8.0 (30.3) 1.2 (4.5) 8 x 44 (203 x 1117) 18 x 35 (457 x 889) 0.75 (21.2) 224 (101.6) 90 (40.8)
7641 6700DF-30 30,000 27,000 20,000 10.0 (37.9) 1.5 (5.7) 9 x 48 (229 x 1219) 18 x 35 (457 x 889) 1.00 (28.3) 224 (101.6) 105 (47.6)
7637 6700DF-30 (10 x 35) 30,000 27,000 20,000 10.0 (37.9) 1.5 (5.7) 10 x 35 (254 x 889) 18 x 35 (457 x 889) 1.00 (28.3) 224 (101.6) 105 (47.6)
7642 6700DF-45 45,000 41,000 30,000 11.0 (41.6) 2.0 (7.6) 10 x 54 (254 x 1372) 21 x 36 (533 x 914) 1.50 (42.5) 308 (139.7) 140 (63.5)
7643 6700DF-60 60,000 55,000 40,000 15.0 (56.8) 3.0 (11.4) 12 x 52 (305 x 1321) 21 x 36 (533 x 914) 2.00 (56.6) 308 (139.7) 185 (83.9)
7644 † 6700DF-90 90,000 82,000 60,000 15.0 (56.8) 4.0 (15.1) 14 x 65 (356 x 1651) 21 x 36 (533 x 914) 3.0 (84.5) 308 (139.7) 255 (115.7)
† Not certified by WQA
Working Temperature = 34-110°F (1-43°C)
(Do not subject the unit to freezing temperatures)
Working Pressure = 20-125 PSIG (137-861 kPa)
Voltage = 120V / 60 Hz
Pipe Size = 3/4”
• Capacities of softeners may deviate from the chart above depending on flow rates and raw water conditions.
• Changing salt settings from factory setting may require changing injector sizes to achieve stated capacities
• The manufacturer reserves the right to make product improvements which may deviate from the specifications
and descriptions stated herein, without obligation to change previously manufactured products or to note the
change.
* Do not use water that is microbiologically unsafe without adequate disinfection before or after the system.