Autotrol 255/760 User manual

v1.0
AUTOTROL 255/760
METERED WATER SOFTENER
›InstallatIon GuIde

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›GeneRal ReFeRenCe
Please take a moment to review this page in order
to familiarize yourself with these four ports on the
valve and the programming values below. It is cru-
cial not to mistake the inlet port with the outlet port.
Mistaking and reversing the inlet and outlet ports
will lead to failure of your softener system.
As you work through this guide, please make sure
to follow all instructions exactly and to make spe-
cial note of the bolded instructions and warning
symbols. PDF viewers may click underlined text
to jump to that page or the page number in the
bottom corner of every page to jump to the table
of contents.
All our installation guides may be found
on our site under “Information.”
›quICk staRt
Here are the program settings for your softener.
If not all of the values are filled in, you can calculate
the missing values from the exercise on pages
4 and 5 of this guide.
There we will cover the three
essential values of HARDNESS , TANK SIZE , and
SALT SETTING . The remaining filled in values are
the general standards for all softeners.
Initial Programming: When you first plug in your
unit, the control will require you to enter the adjacent
values. Use the UP / DOWN buttons to cycle through
the settings, use the SQUARE / SET button to enter
edit mode, use the UP / DOWN buttons to adjust the
selected setting, and use the SQUARE / SET button
to set it and continue on to the next setting. A more
in-depth guide to programming the Autotrol 255/760
begins on page 11 of this guide.
Editing Program Values: If you wish to edit any of
these individual settings after completing initial pro-
gramming , use the UP / DOWN buttons to highlight
the desired setting, click the SQUARE / SET button
to enter edit mode, use the UP / DOWN buttons to
adjust, and set it with the SQUARE / SET button.
Reprogram: If you wish reprogram entirely , hold
both the SQUARE / SET button and DOWN button
at the same time for 5 seconds until the tank size
shown in cubic feet appears, and then hold just the
SQUARE / SET button to reprogram.
Inlet
outlet
dRaIn
settInG InPut Value
Tank Size K / 32 K = Cubic Ft
Ex: 64 K / 32 K = 2.0 Cu Ft
Time of Day *Current Time of Day
Day of the Week *Current Day of the Week
Regeneration Time 2:00 AM
Day Override 14 Days
Salt Setting
□< 10 gpg: L - Low
□10 - 20 gpg: S - Standard
□> 20 gpg: H - High
Capacity AUTO - DO NOT CHANGE
Hardness Grains per Gallon
BRIne
Job Number:
Model Number:
Mineral Tank Size:

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›taBle oF Contents
Page 2 Meter Control Valve Ports and Programming Reference (Click to Jump to Page)
Page 3 Table of Contents
Page 4 Calculating your Hardness Level, and Salt Grid Table
Page 5 Tank Size, Salt Setting, and Salt Grid Table
Page 6 Pre-Installation and Tank Placement
Page 7 Filling the Tank and Installing the Autotrol 255/760 Valve onto the Tank
Page 8 Installing the Bypass and Drain Line onto the Valve
Page 9 Plumbing the System into your Home and Making the Brine Tank Connection
›PReFaCe
Thank you for your purchase of a new water softener with Autotrol 255/760 Meter Control Valve from
QualityWaterForLess.com! We have put together these instructions as reference and to be used as gen-
eral installation guidelines. It is always recommended that a licensed plumber perform all installa-
tion work according to all local codes. We at QualityWaterForLess.com cannot assume responsibili-
ty for improper installation, application, or injury or damage as a result of improper installation.
Page 11 Programming the Autotrol 255/760 Valve
Page 13 Initial System Start-Up

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PPM Hardness ÷17.1 = gpg Hardness before Iron
1 ›CalCulatInG HaRdness, CaPaCIty, and BRIne FIll
1) Water Test: Before start-up, it is crucial that you know your water’s HARDNESS and IRON levels in
order to set up your unit properly.
If your unit is not programmed with your particular hardness level, it will
either regenerate too early or too late. If you do not know your water hardness or iron levels, you can take a
sample of your untreated water to a local pool shop, hardware store, or well driller (city water has no iron)
2) Initial Hardness: Your Hardness test results may be recorded in Grains per Gallon (gpg), Parts per Million
(PPM), or Milligrams per Liter (mg/L). Note that PPM and mg/L are the same measure and both figures can
be used interchangeably. If you get a hardness level in PPM or mg/L, please divide this number by 17.1
to get Grains (gpg).
Ex: If your hardness is measured at 300 PPM, take 300 / 17.1 = 18 gpg before iron
3) COMPENSATED HARDNESS: Your Iron results should also be measured in either PPM or mg/L. Take your
level of iron multiplied by 5 and add it to the hardness level from the previous step.
This final figure will
be your Compensated Hardness Level that we will program into your softener system. Ex: If your iron level is
measured at 2 PPM, add 2 x 5 = 10 Grains of hardness to existing hardness total. 18 + 10 = 28 Grains Total
4) The compensated hardness level you just calculated will be the "Hardness" value you use to
program your softener. You may record this in the table on page 2.
Depending on your compensated
hardness level, you will be able to use a different salt setting for programming and running your softener unit.
The lower the hardness level, the more efficient you will be able to be with salt consumption for regeneration
PlaIn
GRId
11x11” G R I d 15x17” GRId 18” dIameteR GRId
GRId +
3” leGs
GRId +
6” leGs
gpg Hardness + ( PPM Iron x 5 ) = gpg COMPENSATED HARDNESS

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5) TANK SIZE: In the first column, identify the section containing your softener Tank Size by either its grain capacity,
amount of cubic feet, or dimensions. To calculate the amount of cubic feet, take the grain capacity of your tank and
divide it by 32K. For example, a 64K grain capacity tank divided by 32K equals a 2 cubic foot tank. Once you have found
the grain capacity and amount of cubic feet for your tank, record these two values in the table on page 2.
6) SALT SETTING: In the first column, identify the section containing your softener Tank Size and then within this
section, find the row pertaining to your Hardness level. Then look under the Salt Setting column to find the most effi-
cient program option to select for your Salt Setting and record it in the table on page 2.
7) Example: If you ordered a 64K grain capacity system and have 28 gpg compensated hardness, you would look under
the 64K, 2.0 cu ft section and then look under the 20+ gpg row for your particular programming values. Note that the
11x11” and the 15x17” brine tanks are too small for the amount of brine needed to regenerate a 64K grain capacity system
with 20+ gpg hardness. According to the table you would opt for an 18” diameter brine tank with a grid plus 6” legs
TANK SIZE HARDNESS SALT SETTING lbs of Salt 11x11” G r i d 15x17” Grid 18x33” Grid 18x40” Grid 24x41” Grid 24x50” Grid
24K
0.75 cu ft
8x44”
0 - 10 gpg Low 2.25 lbs NO GRID NO GRID NO GRID NO GRID
TOO
LARGE
TOO
LARGE
10 - 20 gpg Standard 6.75 lbs Grid Grid NO GRID NO GRID
20+ gpg High 11.25 lbs Grid + 3” Legs Grid Grid Grid
32K
1.0 cu ft
9x48”
0 - 10 gpg Low 3 lbs NO GRID NO GRID NO GRID NO GRID
TOO
LARGE
TOO
LARGE
10 - 20 gpg Standard 9 lbs Grid + 3” Legs Grid Grid Grid
20+ gpg High 15 lbs Grid + 6” Legs Grid + 3” Legs Grid Grid
40K
1.25 cu ft
10x44”
0 - 10 gpg Low 3.75 lbs NO GRID NO GRID NO GRID NO GRID
TOO
LARGE
TOO
LARGE
10 - 20 gpg Standard 11.25 lbs Grid + 3” Legs Grid Grid Grid
20+ gpg High 18.75 lbs TOO SMALL Grid + 3” Legs Grid + 3” Legs Grid + 3” Legs
48K
1.5 cu ft
10x48”
0 - 10 gpg Low 4.5 lbs Grid NO GRID NO GRID NO GRID
TOO
LARGE
TOO
LARGE
10 - 20 gpg Standard 13.5 lbs Grid + 6” Legs Grid + 3” Legs Grid Grid
20+ gpg High 22.5 lbs TOO SMALL Grid + 6” Legs Grid + 3” Legs Grid + 3” Legs
64K
2.0 cu ft
12x52”
0 - 10 gpg Low 6 lbs Grid NO GRID NO GRID NO GRID
Grid +
5” Legs
Grid +
5” Legs
10 - 20 gpg Standard 18 lbs TOO SMALL Grid + 3” Legs Grid + 3” Legs Grid + 3” Legs
20+ gpg High 30 lbs TOO SMALL TOO SMALL Grid + 6” Legs Grid + 6” Legs
80K
2.5 cu ft
13x54”
0 - 10 gpg Low 7.5 lbs Grid Grid NO GRID Grid
Grid +
5” Legs
Grid +
5” Legs
10 - 20 gpg Standard 22.5 lbs TOO SMALL Grid + 6” Legs Grid + 3” Legs Grid + 3” Legs
20+ gpg High 37.5 lbs TOO SMALL TOO SMALL TOO SMALL Grid + 6” Legs
96K
3.0 cu ft
14x65”
0 - 10 gpg Low 9 lbs Grid + 3” Legs Grid Grid Grid
Grid +
6” Legs
Grid +
6” Legs
10 - 20 gpg Standard 27 lbs TOO SMALL Grid + 6” Legs Grid + 6” Legs Grid + 6” Legs
20+ gpg High 45 lbs TOO SMALL TOO SMALL TOO SMALL TOO SMALL

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2 ›PlaCInG and FIllInG tHe tank
1) Choose the final location for your water softener
tank and place the tank upright and level on the
surface. Filling the tank may be necessary on
some systems. Your tank may have also come
pre-filled, and in this case you only need to un-
screw the protective cap as shown in Figure 6-A
2) If your tank is not filled , place the riser tube
into the tank as shown in Figure 6-B . Please
make sure that the riser tube seats into the
bottom of the tank and that the top of the tube is
about 1” above the top of the tank opening
FIGuRe 6-a FIGuRe 6-B
›PRe-InstallatIon
Before assembly of your new system, be sure that the following conditions have been met for the place-
ment of your system:
• Level, firm surface, such as concrete, on which
to place the softener tank and salt tank (also
known as a brine tank)
• Un-switched power source, standard US plug,
120v 60hz (the softener system includes a
5 ft power cord and plug)
• Access to the water main coming into your
home. You will need to install the softener at
this point to assure that water for the home is
going through the system
• Nearby floor drain or standpipe to connect to the
softener for use during each regeneration
Well
Pump or
City
Meter
Water
Heater
Bypass
Bath Sink Toilet Kitchen
SpigotSpigot
Softener
Drain Line
Hard Water
Soft Water
Overflow
(Optional)
Floor
Drain

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3) Before filling the tank, place a piece of painter's
tape over the top of the riser to prevent resin
from dropping down inside the riser tube as
shown in Figure 7-A. iAvoid using duct tape
which leaves behind unwanted residue
4) Place the included filling funnel over the top of
the tank as shown in Figure 7-B and prepare to
fill the tank. If your softener system came with
gravel , please pour this into the tank first , then
pour in the included resin media afterwards
FIGuRe 7-a FIGuRe 7-B
stan daRd
FIne mesH
3 ›InstallInG tHe autotRol 255/760 ValVe
1) Remove the filling funnel and tape and while
using the included silicone lubricant packet, lubri-
cate the inner and outer o-rings on the bottom of
the Autotrol 255/760 Valve as shown in Figures
7-C and 7-D
2) Next, install the top screen (standard OR fine
mesh)
to the bottom of the Autotrol 255/760 Valve
as seen in Figure 7-E (you may need to strip the
groove tabs with a razor before attaching). Then
place the valve onto the top of the tank, being sure
that the riser tube fits into the central o-ring on the
valve, as shown in Figure 7-F. Hand-tighten the
valve to the tank. Do not use Teflon tape or pipe
dope on the valve or tank threading
FIGuRe 7-C FIGuRe 7-e
FIGuRe 7-d FIGuRe 7-F

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3) Locate the plumbing adaptors and bypass valve
assembly that was shipped with your system,
attach the three o-rings to the rear of the valve
and lubricate them using the included silicone
lubricant packet as shown in Figure 8-A
4) Push the bypass valve snugly to the back of the
Autotrol 255/760 valve and use the screws and
nuts to secure the bypass valve as shown in
figure Figure 8-B
FIGuRe 8-a FIGuRe 8-B
FIGuRe 8-F
7) Locate the two plumbing adaptors supplied
with your system. Insert the plumbing adapter
through the universal nut and then push down
the gasket over the adaptor flange as shown in
Figure 8-E below
8) Secure each plumbing adaptor onto the bypass as
shown in Figure 8-F. i If you are using copper
connections, first prefabricate and sweat a
12” tube section onto each adaptor and cool
BEFORE assembly to the bypass.
This prevents
overheating the nut and bypass during plumbing
FIGuRe 8-C
FIGuRe 8-e
5) Locate the drain port on the bypass, apply Teflon
tape in a clockwise fashion, locate the included
drain barb elbow, and assemble the fitting as
shown in Figure 8-C
6) Assemble your ½” I.D. drain line to the drain barb.
Be
sure to use rigid wall ½” I.D. tubing that will not
flatten.
Wrap electrical tape over the drain tubing
to prevent a tube split and clamp the tubing secure-
ly into place with the included clamp as shown in
Figure 8-D. i Connect the other end of this drain
line tubing securely to a standpipe or drain in
accordance with all local plumbing codes
FIGuRe 8-d

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4 ›PlumBInG youR autotRol 255/760 ValVe
1) Before beginning your installation, please first
familiarize yourself with the IN and OUT ports on
the Autotrol 255/760 Valve. In order to prevent
damage to your home and to the softener
system, install the softener according to the IN
and OUT arrows on the softener valve
2) Locate the main shut-off valve for your house
and turn it to the OFF position. If you have a
private well, this valve should be near your well
pressure tank. If you have a city water supply,
your valve should be near your water meter
3) Depressurize and drain your home of water by
turning on all faucets and fixtures in your home,
including those outside
4) Pick your installation point and cut a section
of pipe out to run to and from your softener.
In most cases it is preferred to keep outside
lines UNSOFTENED. If you wish to keep your
outside lines unsoftened, you must plumb
BYPASS lines to run hard water to these fix-
tures
5) Using soldered copper, PVC plastic pipe, or flex-
ible connections, plumb the system according to
all local plumbing codes. If using copper pipe,
please pre-fabricate at least a 12” section
of pipe for the IN and OUT bound lines and
use a wet rag on the lines being soldered to
prevent heat damage during soldering
6) Once all connections have been made, place the
system into bypass by either using your existing
3-valve bypass (if ordered with a YOKE adap-
tor), or by switching your included bypass ON (if
ordered with a bypass)
7) Next, gradually open your main valve and allow
all air in your plumbing lines to escape slowly.
Also, you may turn off all outside and inside
faucets and fixtures
8) Check for leaks at your plumbing site for signs
of slow drips and rectify if necessary. Please do
NOT take the softener out of BYPASS as the
installation is not completed yet. Please take
this opportunity to check and re-check the IN
and OUT ports to make sure they are correct
5 ›makInG tHe BRIne tank ConneCtIon
1) Locate the air check consisting of a clear plastic
vial with two screws, a rubber ball, and an o-ring.
First, lay the rubber ball onto the brine port of
your valve, then lubricate and place the o-ring
over the port flange as shown in Figure 9-A
2) Use the two included screws to assemble the
air check to the valve as shown in Figure 9-B
FIGuRe 9-a FIGuRe 9-B

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3) Locate the included section of Brine Tubing and
assemble the brine fitting to the brine tubing.
Finger-tighten the nut and then use a wrench to
turn the fitting ½ turn more until snug as shown
in Figure 10-A. iPlease use care not to over-
tighten
4) Locate the brine well and remove the cap. You
may also take this moment to prepare and
insert the brine support grid determined from
pages 4 and 5
. Then pull the 2310 Brine Float
Assembly
out of the brine well and fix the assem-
bly to the brine well as shown in Figure 10-B
FIGuRe 10-C
FIGuRe 10-BFIGuRe 10-a
FIGuRe 10-d
5) Take the other end of your brine line tube and
insert the tube through the small hole drilled
through the brine tank and brine well. Loosely un-
screw the hex nut on the 2310 Brine Float Assem-
bly. Insert the tubing end firmly into the hex nut on
the 2310 Brine Float Assembly (Figure 10-C)
6) Next, back off the hex nut and ferrule assembly
so they are secure on the tubing as shown in
Figure 10-D. iPlease be sure to assemble
the nut in the fashion described to prevent
system malfunction and possible brine tank
overflow
7) Hand-tighten the hex nut snugly onto the 2310
Brine Float Assembly as shown in Figure 10-E
8) Finally, use ½” inner diameter (I.D.) tubing to connect
the drain barb fitting on the brine tank to a floor drain
as shown in Figure 10-F. Note that this is not neces-
sary as the 2310 assembly is designed to prevent an
overflow from occuring, but it is a good precaution
FIGuRe 10-e FIGuRe 10-F

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FIGuRe 11-C FIGuRe 11-d
FIGuRe 11-e FIGuRe 11-F
6 ›PRoGRammInG tHe autotRol 255/760 ValVe
1) Before programming may begin, the power cord must
be connected to the 760 timer on your valve. Begin
by locating the small locking tab to the left side and to
the rear of the timer as shown in Figure 11-A. Release
the tab by pushing down on it and allowing the timer
assembly to swing outward
2) Locate the included transformer power pack, and
string the male end of the cord under the timer brack-
et and into the timer. Attach the cord to the valve by
tracing the other cables as shown in Figure 11-B
5) Next is the
Time of Day . Press the SET button
to enter edit mode. Use the UP or DOWN
buttons to change to the current time of day.
iNote that there is a difference between
“AM” and ”PM.”
Then press the SET button to
make this setting active (Figure 11-E)
6) Next is the Day of the Week . Press the SET
button to enter edit mode. Use the UP or DOWN
buttons to change to the current day of the week.
Once the time has been changed, press the SET
button to make this setting active as shown in
Figure 11-F
3) The timer will show “ - . - - “ as shown in
Figure 11-C. If this does not show up initially,
your system has been pre-set and you may skip
ahead to the next section, initial start-up
4) Use the UP arrow button to input the number
corresponding to your tank size as shown in
Figure 11-D. Find your tank size by dividing your
grain capacity by 32,000 (EX: 64,000 / 32,000 =
2.00). Press the SQUARE / SET button to make
this setting active. If you need to reset this,
steps to reprogram are found on page 2
FIGuRe 11-a FIGuRe 11-B

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FIGuRe 12-a FIGuRe 12-B
7) Now you will see the Regeneration Time . Press
the SET to enter edit mode and use the UP or
DOWN buttons to change to 2:00 AM. i Note
that there is a difference between “AM” and
”PM.”
Then press the SET button to make this
setting active as shown in Figure 12-A
8) Next is the Calendar Override . This overrides the
meter triggered regeneration by initiating a regen-
eration after a set number of days if the water
usage alone does not first initiate it. Press the SET
button to enter edit mode, use the UP button to
change to 14 days, and press the SET button to
make this setting active as shown in Figure 12-B
FIGuRe 12-C FIGuRe 12-d
9) You will next see the Salt Setting . Press the SET
button to begin editing, choose L for 0 - 10 gpg,
S for 10 - 20 gpg, and H for 20+ gpg. Use the UP
or DOWN buttons to make the appropriate chang-
es to the salt setting and press the SET button to
make this setting active (Figure 12-C)
10) You will next see the Capacity on the screen.
i DO NOT CHANGE THIS VALUE. This
number is based on your salt setting chosen
above and should not be changed. Press the
DOWN button
to advance to the next setting
(Figure 12-D)
11) Next is the hardness level. i Press the SET
button to enter edit mode, use the UP or DOWN
buttons to adjust to the hardness level listed
on page 2/calculated on Page 4
, and press the
SET button to make this setting active as shown
in Figure 12-E
12) The display should now show the time of day
and the amount of gallons remaining. This display
will switch between these valves about every 10
seconds. Note that there is a “PM” light indicator
to differentiate between “AM” and “PM” times.
FIGuRe 12-e

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7 ›InItIal staRt-uP
1) With one nearby softened faucet running in the COLD position, slowly open your bypass valve or 3-valve bypass
to about ¼ open to allow the air trapped in the softener to escape via your running faucet. NOTE: Opening the
bypass too quickly or too open may damage your softener or plumbing
2) Allow the softener tank to slowly fill with water. After a few minutes, you will see a trickle of water coming from
the cold water faucet. Allow the water to run slowly in this manner for an additional 5 minutes. Next, with the
cold water faucet still running, gradually move your bypass valve to the fully open position. NOTE: You may see
some initial discoloration from the softened water – this is normal and should dissipate within the first
40-50 gallons of water used.
Turn off the running cold water faucet when the water runs clear
›ConGR at ul at Ions
Your new softener with Autotrol 255/760 Valve is now properly installed and programmed!
Please maintain your system by keeping the softener plugged-in and always keep your brine
tank filled with salt to at least above the water level. We appreciate your business, and hope
that you enjoy years of trouble-free softened water!
3) i To test the integrity of your new system and all connections , it is strongly encouraged that you
perform a short form regeneration to check for leaks before service.
Begin this process by adding ap-
proximately 5 gallons of water/the amount of water needed to cover the brine grid into the brine tank. Start the
regeneration sequence by HOLDING the REGEN button for 5 seconds. Once the hourglass symbol disappears,
let C1 - Backwash run for about 1 minute to observe the water leave out the drain line and check for leaks. If you
notice any leaks, return to page 8 to review preparing the drain connection. Simultaneously click the SET and
UP buttons ONCE to move on to C2 - Regeneration Draw/Slow Rinse
4) Once the hourglass symbol disappears, let C2 - Regeneration Draw run for about 1 minute to observe the
water level in the brine tank being drawn lower. Also check the brine line and connections for leaks. If the
water level doesn't lower or there is a leak, return to pages 9 and 10 to review preparing the brine tank con-
nection. Simultaneously click the SET and UP buttons until you reach C8 - Regenerant Refill
5) Once the hourglass symbol disappears, let C8 - Regenerant Refill run for about 1 minute to observe the water
level in the brine tank rise. Also check the brine line and connections for leaks. If the water level doesn't rise or
there is a leak, return to pages 9 and 10 to review preparing the brine tank connection. Simultaneously click
the SET and UP buttons ONCE to finish
6) Now you may add 120-160 pounds of pellet, solar, or block salt to your brine tank. Always keep your brine tank
filled with salt to at least above the water level.
You do not need to perform a regeneration immediately after
installation as the new resin arrives at full softening capacity. Simply let your softener meter automatically trigger
regenerations by tracking the water consumption