The Series 255/460i demand control system combines
design simplicity with reinforced Noryl* construction to
provide the user with an uncommonly reliable
appliance. The inherent reliability of the system means
a long life of efficient, trouble-free, uninterrupted soft
water luxury.
Should maintenance become necessary, the
Series 255 offers a unique “separation” capability
illustrated in this manual.
Of interest to both the owner and the water
conditioning dealer are the design and operation
benefits detailed below.
Superior Design
• Fewer parts than any control system of
comparable function and most controls of lesser
function.
• Single synchronous electric motor provides all
the power needed to turn the camshaft.
• 460i timer utilizes a microprocessor to provide a
time-proven logic analysis to initiate regeneration.
• Electrical wiring is factory assembled. System
cannot be connected incorrectly.
• System indexes manually with or without power
to any one of its service or regeneration positions.
Readout on timer face plate indicates control valve
position.
modular bypass valve without modification,
offering complete versatility and easy plumbing for
any installation.
• Brining control valve built into system eliminates
need for an external brine valve.
• Automatic drain flow controller is incorporated
into the system.
Superior Operation
• Direct acting system functions independently of
water pressure. No pistons or diaphragms that
require a minimum water pressure to operate.
• Five-cycle operation provides for downflow
service, upflow backwash, downflow brining,
downflow rinse, downflow purge, or fast rinse. A
sixth position is included for timed refill of the brine
tank.
• Valve discs are held closed by water pressure
and therefore are leak tight. The sealing forces are
increased as the water pressure is increased. Valve
seats are in a vertical position, which is the design
position least vulnerable to plugging.
• System operation cannot get out of phase or
sequence. Control always returns to a fixed service
position after regeneration regardless of where in
the regeneration cycle it was started.
• Bypass water is automatically available during
regeneration.
*Noryl is a trademark of General Electric Company
Page 3
3
460i Electronic Demand System
The two key components of the 460i electronic
demand system are the microprocessor, a miniature
computer located on the circuit board, and a water
meter located at the valve outlet. The flow of
conditioned water through the meter generates
electrical impulses that tell the computer the amount of
water being used.
Every day, at 2:00 a.m., the past seven days’ water
usage is statistically averaged to anticipate the amount
of water that will be used the next day. The computer
then determines if the water conditioner has enough
remaining capacity to supply the next day’s needs. If
not, the unit will regenerate.
If the water usage pattern changes, the computer
automatically compensates for the change and
regenerates only when needed. This results in higher
operating efficiency and lower salt usage than a
conventional conditioner operating on a fixed
regeneration schedule.
Special Features
Memory Retention
During a power outage, all of the data in the
microprocessor’s memory is stored in a special
electronic chip called NOVRAM, Nonvolatile Random
Access Memory. This data includes the time of day,
water usage amounts, and the number of days since
the last regeneration. When power is restored, the
NOVRAM returns the data to the microprocessor and
operation resumes as if an outage never occurred.
The time of day will be late by the length of the power
outage. Most power outages are less than one minute
in duration. Therefore, it may be months or years before
the time display would require resetting. If an outage of
one or more hours occurs, the time of day should be
reset. No other reprogramming is necessary.
usage amount will be used as the reserve when the
460i performs its regeneration computation.
Low or No Water Usage
The 460i is programmed to recognize a day of very little
or no water usage as an abnormality. It will not use data
from such a day to compute the average usage. For
example, if the family is on vacation for a week, the
prior average will be maintained. When household
activity resumes, the 460i will operate as if the vacation
had not occurred.
Design Reliability
Solid-state electronics assure many years of
trouble-free performance. The metering system has
only one moving part: the rotating turbine that
measures water usage and generates electrical pulses
that are continually counted by the microprocessor to
determine the need to regenerate.
Time Display
The correct time will continually appear in the time
display during normal conditioning operation. To
change the hour display, press the TIME SET BUTTON
until the present hour appears. The PM light will be on
when the time is between 12:00 noon and midnight.
The light is off during the AM hours.
Flow Indicator
The water flow indicator on the time display flashes
whenever conditioned water is flowing through the
valve. This allows an easy determination of proper
meter operation.
Hardness and Capacity Settings
Once the hardness and capacity settings have been
set, the information cannot be lost due to a power
outage; reprogramming is not necessary.
Guest Cycle
n extra regeneration can be achieved at any time by
“Reserve” and High Water Usage
“Reserve” refers to the amount of soft water that may
be needed for the next 24 hours. The microprocessor
calculates how much soft water was used and adjusts
the reserve capacity accordingly at the end of each day.
As a result, the reserve is kept at a minimum for
optimum economy. The reserve amount is calculated
by multiplying the average past seven days’ usage
by 1.2. Regeneration decisions are based on the
calculated reserve.
Self-Adjusting Reserve
The 460i is programmed to react to a sudden increase
in water usage. If a day’s usage is more than double the
current average, the computer anticipates that a
second day of high usage is likely to occur. The high
A
depressing the pointer knob. It will take a few minutes
for the regeneration to start. The unit will return to
service in two hours. This feature is beneficial when you
expect to use more than the normal amount of water,
for example: guest visits, extra heavy laundry days, etc.
Programmable Calendar Override
The 460i controller has a unique feature that allows a
calendar override of 1 to 15 days. This override will
initiate a regeneration at the programmed interval if the
water usage has not been enough to initiate
regeneration.
Page 4
4
Control Module
Tank Thread 2-1/2-inch - 8 Male
Standard L-Lid
Cover
Tank Adapter Module
Air Check
Brine Line Fitting Connection 1/4-inch NPT
Figure 1
Optional Bypass
Inlet Connection 3/4-inch or
1-inch NPT or BSPT
Drain Connection 3/8-inch or
1/2-inch NPT or BSPT
Outlet Connection 3/4-inch or 1-inch NPT or BSPT
Figure 2
Page 5
5
Installation
All plumbing must conform to local codes.
Inspect unit carefully for carrier shortage or shipping
damage.
Location Selection
1. The distance between the unit and a drain should be
as short as possible.
2. If it is likely that supplementary water treating
equipment will be required, make certain adequate
additional space is available.
3. Since salt must be added periodically to the brine
tank, the location should be easily accessible.
4. Do not install any unit closer to a water heater than
a total run of 10 feet (3 m) of piping between the
outlet of the conditioner and the inlet to the heater.
Water heaters can sometimes overheat to the
extent they will transmit heat back down the cold
pipe into the unit control valve.
Hot water can severely damage the conditioner. A
10-foot (3-m) total pipe run, including bends,
elbows, etc., is a reasonable distance to help
prevent this possibility. A positive way to prevent
hot water from flowing from heat source to the
conditioner, in the event of a negative pressure
situation, is to install a check valve in the soft water
piping from the conditioner. If a check valve is
installed, make certain the water heating unit is
equipped with a properly rated temperature and
pressure safety relief valve. Also, be certain that
local codes are not violated.
5. Do not locate unit where it or its connections
(including the drain and overflow lines) will ever be
subjected to room temperatures under 34
or over 120
o
F (49oC).
6. Do not install unit near acid or acid fumes.
Water Line Connection
o
F (1oC)
Not in BypassIn Bypass
Water
Conditioner
Water
Conditioner
Figure 3– Autotrol Series 256 Bypass Valve
Figure 4– Typical Globe Valve Bypass System
Drain Line Connection
1. Ideally located, the unit will be above, and not more
than 20 feet (6.1 m) from the drain. For such
installations, using an appropriate adapter fitting
(not supplied), connect 1/2-inch (1.3-cm) plastic
tubing to the drain connection located on the
control.
2. If the unit is located more than 20 feet (6.1 m) from
drain, use 3/4-inch (1.9-cm) tubing for runs up to
40 feet (12.2 m).
A bypass valve system must be installed since there
will be occasions when the water conditioner must be
bypassed for hard water or for servicing.
The most common bypass systems are the Autotrol
®
Series 256 bypass valve (Figure3) and plumbed-in
globe valves (Figure4). Though both are similar in
function, the 256 Autotrol bypass offers simplicity and
ease of operation.
3. If the unit is located where the drain line must be
elevated, you may elevate the line up to 6 feet
(1.8 m) providing the run does not exceed 15 feet
(4.6 m) and water pressure at conditioner is not less
than 40 psi (2.3 bar). You may elevate an additional
2 feet (61 cm) for each additional 10 psi (0.69 bar).
4. Where the drain line is elevated but empties into a
drain below the level of the control valve, form a
7-inch (18-cm) loop at the far end of the line so that
the bottom of the loop is level with the drain
connection. This will provide an adequate siphon
trap.
5. Where the drain empties into an overhead sewer
line, a sink-type trap must be used.
Page 6
6
Important: Never connect drain line into a drain, sewer
line or trap. Always allow an air gap between the drain
line and the wastewater to prevent the possibility of
sewage being back-siphoned into conditioner.
transformer secondary cable to the mating socket on
the bottom of the controller.
Be certain the transformer is plugged into a
source that is not controlled by a wall switch and
cannot be accidentally turned off.
Splicing the Low Voltage
Transformer Cord
If it is necessary to extend the length of the transformer
cord, an optional 15-foot (4.6-m) extension cord is
available (P/N 1000907), or the cord may be spliced as
follows:
1. Strip insulation from wire 5/16 inch (.8 cm) from wire
end.
Figure 5
Note: Standard commercial practices have been
expressed here. Local codes may require changes to
these suggestions.
Brine Line Connection
It will be necessary to install the brine tube and connect
the line to a fitting installed on the air check.
Be sure all fittings and connections are tight so that
premature checking does not take place. Premature
checking is when the ball in the air check falls to the
bottom before all brine is drawn out of the brine tank.
See Placing Conditioner into Service section.
Overflow Line Connection
To connect overflow, locate the hole on the side of the
brine tank. Insert overflow fitting (not supplied) into tank
and tighten with plastic thumb nut and gasket as
shown (Figure6). Attach length of 1/2-inch (1.3-cm) I.D.
tubing (not supplied) to fitting and run to drain. Do not
elevate overflow line higher than 3 inches (7.6 cm)
below bottom of overflow fitting.
2. Insert stripped wire into barrel of connector and
crimp. For best results, crimp twice per wire as
shown in Figure7.
Splice connectors or extension wire is not supplied.
They are available at hardware or electrical stores.
Figure 7
Placing Conditioner into
Operation
After all previous steps have been completed, the unit
is ready to be placed into operation. Follow these steps
carefully:
1. Remove control valve cover (Figure 14).
Note: The following steps will require turning the
pointer knob (Figure9) to various positions. Insert a
wide-blade screwdriver into arrow slot in pointer
Figure 6
Electrical Connection
12VAC:
The power supply transformer should have a minimum
rating of 3 volt-amps. Connect the plug of the
knob and press in firmly. With knob held in, rotate
COUNTERCLOCKWISE only until arrow or knob
points to desired position. (Rotation is made much
easier if you grasp the camshaft with your free hand
and turn it at the same time.) Then permit knob to
spring back out.
2. Insert screwdriver into slot in pointer knob
(Figure9). Press in and rotate knob
Page 7
7
COUNTERCLOCKWISE until arrow points directly
255/460i shown with optional i-lid cover (PN 1000062)
to the word BACKWASH.
3. Fill resin tank with water.
A. With water supply off, place the bypass valve(s)
into the “not in bypass” position.
B. Open water supply valve very slowly to
approximately the 1/4 open position.
Important: If opened too rapidly or too far, resin may
be lost. In this position, you should hear air escaping
slowly from the drain line.
C. When all of the air has been purged from the
tank and clear water begins to flow steadily
from the drain, close main supply valve.
D. With the water supply off, let the unit stand for
about five minutes. This will allow all trapped air
to escape from the tank.
E. Proceed to step 4.
4. Add water to brine tank (initial fill). With a bucket or
hose, add approximately four gallons (15 liters) of
water to brine tank. If the tank has a salt platform
above the bottom of the tank, add water until the
level is approximately 1 inch (25 mm) above the
platform.
SLOW RINSE position.
D. With the conditioner in this position, check to
see if water is being drawn from the brine tank.
The water level in the brine tank will recede very
slowly. Observe for at least three minutes. If the
water level does not recede or goes up, or if air
enters the transparent air check chamber and
the ball falls and seats, reference
Troubleshooting section.
E. Advance pointer knob COUNTERCLOCKWISE
to CONDITIONED WATER.
F. Run water from a nearby faucet until the water
is clear and soft.
Programming the 460i
Plug the wall mount transformer into a functioning
electrical outlet that is not controlled by a switch. Plug
the transformer plug into the transformer plug
receptacle on the timer.
Note: If the included transformer cord is not long
enough, a 15-foot (4.6-m) extension is available. See
Splicing the Low Voltage Transformer Cord section
of this manual.
Open the access door by pushing the raised tab on the
door toward the left while pulling the tab out (Figure9).
Figure 8
5. Put into operation.
A. Open water supply valve slowly to full open
position.
B. Carefully advance pointer knob
COUNTERCLOCKWISE to center of FAST
RINSE/REFILL position and hold there until air
check (Figure1) fills with water and water starts
to flow through brine line into brine tank. Do not
run for more than two minutes.
C. Advance pointer knob COUNTERCLOCKWISE
until arrow points to the center of the BRINE/
Water Flow Indicator
PM Indicator
Pointer Knob
Time Set Button
Hour Time Display
Transformer Plug
Receptacle
Access Door
Raised
Tab
Jumper
Spare
Jumper
Figure 9
Time of Day Setting
With the jumper on the set of pins next to the word
TIME (Figure 10), set the time of day to the closest hour
by pressing the black TIME SET button. PM hours are
indicated by a light next to the letters PM on the display
window.
Page 8
8
Note: The use of a small needle nose pliers or tweezers
Figure 10Figure 11
Figure 12
will aid in moving the jumper.
Note: The unit is factory set to regenerate at 2:00 a.m.
If you prefer to have the unit regenerate at an earlier or
later time, simply set the current time of day
accordingly. To have the unit regenerate at 4:00 a.m.,
two hours later, set the clock two hours earlier than the
actual current time.
Hardness Setting
Move the jumper to the set of pins next to the word
HARDNESS (Figure 11). Press the black TIME SET
button until the correct hardness is displayed. The
hardness range is from 1 to 99 grains per gallon.
To change water hardness stated in parts per million
(PPM) to grains per gallon (GPG) use this formula:
Parts per Million
17.1
= Grains per Gallon
4. Depress the black TIME SET button. The numbers
will roll from “0” to “15.” Release the switch at the
desired number of days for the calendar override.
For example, releasing the switch at “10” would
program a 10-day calendar override.
5. Disconnect power.
6. Place jumper back on TIME and reconnect power.
7. The calendar override program is maintained
during power outages by the NOVRAM circuitry.
8. To remove the calendar override, follow the same
steps above and program back to “0.”
Manual Regeneration
Electricity is used only to run the timer and to rotate the
camshaft. All other functions are operated by water
pressure. Therefore, in the event of a power outage, all
the regeneration positions may be dialed manually by
depressing the pointer knob with a straight blade
screwdriver and turning COUNTERCLOCKWISE.
Manual time cycle:
• Backwash–14 minutes
• Brine/Slow Rinse–52 minutes
• Brine Refill–10 minutes
• Fast Rinse/Refill–6 minutes.
Capacity Setting
Move the jumper to the set of pins next to the word
CAPACITY (Figure 12). Press the black TIME SET
button until the correct capacity value is displayed. The
capacity range is 1 to 99 kilograins. Refer to the
Suggested Salt Dial Settings table.
Return the jumper to the top set of pins next to the
word TIME and replace the access door. The next three
sets of pins are used for factory testing and are not
used in normal operation. The jumper must NOT be left
on any pins other than the top pair next to the word
TIME. Otherwise, the unit may not function.
Note: A spare jumper is located on the bottom set of
pins.
In the event that the hardness or capacity setting must
be changed, simply follow the appropriate steps
described above.
Calendar Override Setting
1. Disconnect power.
Do not exceed 10 minutes for the refill cycle as this will
cause excessive salt usage during the next
regeneration and possibly a salt residue in the softened
water.
DO NOT advance the pointer knob directly to the
conditioned water position (6 o’clock) after a manual
regeneration or when servicing the conditioner.
Advance it to just past the purge position,
approximately 7 o’clock. The timer will then advance
itself to the conditioned water position where the
internal switch will turn the motor off. The internal
switch will not be operated and the motor will continue
to run if advanced directly to the conditioned water
position.
If power fails during a conditioner regeneration, the
cycle will be completed normally when the power is
restored.
2. Place jumper on Pin A and reconnect power.
3. Move jumper to Pin B. A zero will appear, indicating
zero days of calendar override. All 460i controllers
are preprogrammed in this manner at the
manufacturer.
Page 9
9
Adjustment of Brine Control
The amount of salt placed into the regenerant storage
tank has nothing to do with the amount of salt used
during the regeneration cycle. Water will dissolve and
absorb salt only until it becomes saturated. A given
amount of brine (salt-saturated water) contains a
specific amount of salt.
The salt dial controls the amount of brine used during
the regeneration cycle, e.g., when set at 15 lbs. (6.8 kg)
the amount of brine the conditioner will use for each
cycle will contain 15 lbs. (6.8 kg) of salt. Never let the
amount of salt in the brine tank be less than the amount
required for the next regeneration.
Refer to the Suggested Salt Dial Settings Table
(Table 1) for proper salt settings. To set the salt dial,
insert a screwdriver into the slot (Figure 13) and move
the pointer to the proper setting.
Note: To convert the salt settings from English to
metric, divide by 2.2 (e.g., 12 pounds
÷ 2.2 = 5.5 kg. of
salt).
Table 1 – Suggested Salt Dial Settings (Pounds of Salt) For Various Size Softeners
*This setting requires the use of “XS” (extra salt) cam and doubles the amount of the setting.
3
2.0 Ft
3
2.5 Ft
3
Page 10
10
Removing the Series 255 Control Module for Servicing
1. Unplug the transformer cable from the control.
2. Shut off water supply or put bypass valve(s) into
bypass position.
3. Remove cover (Figure14) and with a screwdriver,
relieve tank pressure by pushing open valve
number 6 (at rear) (Figure15).
Outlet
Drain
Figure 14
Inlet
5. Apply downward hand pressure on control and pull
locking bar out (Figure17).
Figure 17
6. Using a rocking motion, lift control from the tank
adapter (Figure18). If O-rings come off with the
control put them back into tank adapter sockets.
Lubricate O-rings with silicone lubricant.
Figure 15
4. Remove screw in locking bar (Figure 16).
Figure 16
Figure 18
7. To replace control module, reverse above
procedure.
Page 11
11
Specifications
Shown with optional i-lid cover PN 1000062.
Hydrostatic Test Pressure...............................................................................................................................300 psi (20.69 bar)
Working Pressure ................................................................................................................................20-127 psi (1.38-8.76 bar)
Standard 12 Volt Transformer Input Electrical Rating................................................................................................. 115V 60Hz
Transformer Cord.........................................................................................................................................120 inch (1.5m) long
Pressure Tank Thread .......................................................................................................................................2 1/2 inch 8 male
Brine Line Thread ............................................................................................................................................1/4 inch NPT male
Distributor Tube Diameter Required ............................................................................................................13/16 OD (20.6 mm)
Distributor Tube Length ............................................................................ 1 1/4 inch (31.8 mm) higher than top of mineral tank
Standard Manifold Connection.............................................................................3/4-inch NPT inlet-outlet, 3/8-inch NPT drain
Optional Bypass Valve...............................3/4-inch (19.1 mm) or 1-inch (25.4 mm) copper tailpiece, 1/2-inch NPT male drain
Control Module, Tank Adapter, Optional Bypass Valve ................................................................................. Reinforced NORYL
Inlet-Outlet Manifold .........................................................................................................................Brass or reinforced NORYL
Rubber Goods ....................................................................................................................Compounded for cold water service
Brine Refill Control...........................................................1 to 10 lbs (0.45 to 4.5 kg) of salt or 3 to 19 lbs (1.3 to 8.6 kg) of salt
Injector Size “A” White..............................................Nozzle .042 inch (1.1 mm) Diameter, Throat .089 inch (2.3 mm) Diameter
Injector Size “B” Blue ...............................................Nozzle .052 inch (1.3 mm) Diameter, Throat .099 inch (2.5 mm) Diameter
Injector Size “C” Red................................................Nozzle .059 inch (1.5 mm) Diameter, Throat .099 inch (2.5 mm) Diameter
Backwash Controllers Available for ...............................................................................................6, 7, 8, 9, 10, 12, 13, 14 inch
1034162No. 6 for 6 in Diameter Tank
1000209No. 7 for 7 in Diameter Tank
1000210No. 8 for 8 in Diameter Tank
1000211No. 9 for 9 in Diameter Tank
1000212No. 10 for 10 in Diameter Tank
1000213No. 12 for 12 in Diameter Tank
1000214No. 13 for 13 in Diameter Tank
1000215No. 14 for 14 in Diameter Tank
71030502Ball, Flow Control1
8
1032970“A” Injector - White
1032971“B” Injector - Blue
1032972“C” Injector - Red
Valve Assembly, w/o Flow
Controls
Camshaft, Standard, OnePiece
Valve Cover, Black with
transparent window
Brine Refill Flow Control
Assembly:
Screen/Cap Assembly with
O-Ring
Backwash Control Assembly
with O-Rings:
Injector Assembly with
O-Rings:
1
1
1
1
1
1
1
CodePart No.DescriptionQty.
9Injector Cap with O-Ring:1
1000217“A” Cap
1000218“B” Cap
1000219“C” Cap
101033784Tank Adapter Assembly1
111032416Air Check Assembly1
121010429O-Ring BN1
131010428O-Ring EP1
141031402Locking Bar: English Language1
151006093Screw, No. 8 x 9/16 inch1
161001580Spring, Valve Disc Kits:9
171033066
181000297Extended Bearing, Camshaft1
191031391Pin, Locking, Timer, Black1
20Covers, High Style:
1041087Beige/Tan
1041088Black/White
1041091Beige/Black
211030501
221032565Cover, L-lid
231001404O-Ring Group: Tank Adapter
241040459O-Ring Group: Piping Boss
251041010
New to Old Aircheck Adapter
Kit
Bearing, Camshaft for use with
Cover (Code 22)
13/16-inch Riser Insert
(optional)
1
*1000250Valve Disc Replacement
* Not shown
Page 16
16
460i Timer
*Teflon is a registered trademark of E.I. Dupont de Nemours and Company, Inc.
Bypass Valve
1
2
Meter AdapterPiping Boss
Note: Do not use pipe joint compound when threading
1
pipe into the Noryl piping boss. Use only Teflon* pipe tape.
Do not overtighten pipe into Noryl piping boss.
1
2
2
Page 17
17
460i Timer
Piping Boss
CodePart No.DescriptionQty.
1460i Timer1
2Transformer1
1000810Japanese
1000811North American
1000812Australian
1000813British
1000814European
*1000907Transformer Extension Cord1
15 foot (4.6 m)
Bypass Valve
CodePart No.DescriptionQty.
11040769Bypass Body Assembly1
21040524Install Kit1
11032350Kit, Meter Adapter1
21032351Meter Install Kit1
* Not Shown
Page 18
18
Preventive Maintenance
Inspect and clean brine tank and screen filter on end of
brine pickup tube once a year or when sediment
appears in the bottom of the brine tank.
Injector Screen and Injector
The injector is the component which creates the
vacuum necessary to draw the brine into the water
conditioner. Clean the injector and injector screen once
a year in order to maintain proper water conditioning.
Some locations may require more frequent injector and
screen servicing. Refer to Figure 19 and complete the
following steps to clean the injector screen and injector.
1. Unplug the wall mount transformer.
2. Shut off water supply or put bypass valve(s) into
bypass position and remove the rear cover.
3. Relieve system pressure by opening valve
number 6 (at rear) with a screwdriver (Figure 15).
4. Using a screwdriver, unscrew and remove the
injector screen and the injector cap.
5. Clean screen with a fine brush. Flush with water
until clean.
6. Using a needle-nose pliers, pull the injector straight
out.
7. Squirt water into the injector screen recess of the
valve body to flush debris out.
8. Clean and flush injector.
9. Lubricate the O-rings on the injector, injector cap,
and injector screen with silicone lubricant and
reinstall.
Important: Do not overtighten the plastic cap. Seat the
cap lightly into position. Overtightening may cause
breakage of the plastic cap that may not be
immediately evident.
10. Reinstall cover, reconnect electric power, and reset
the time of day.
11. Slowly open the water supply valve or return the
bypass valve(s) to the “not in bypass” position.
Water Meter
In rare instances, the turbine wheel of the water meter
may collect small particles of oxidized iron, eventually
preventing the wheel from turning. The turbine wheel
may be serviced as follows (Figure 20):
1. Shut off the water supply or put bypass valve(s) into
bypass position.
2. Relieve system pressure by opening valve
number 6 (at rear) with a screwdriver (Figure 15).
3. Loosen and remove the fasteners that hold the
meter adapter to the tank adapter and the
fasteners that hold the piping boss or bypass valve
to the meter adapter.
4. Remove the meter adapter, being careful not to
misplace any of the O-rings.
5. Using a needle-nose pliers, grasp one of the four
vanes of the gland and, pulling straight out, remove
the gland from the adapter.
6. Carefully remove the turbine wheel from the
housing. Using a toothbrush, lightly scrub the iron
off the magnet. Iron buildup on the wheel surfaces
may be removed by soaking the wheel in a mild
sodium hydrosulfite (e.g., RoVer*) solution for a few
minutes, then flushing thoroughly with water.
7. Carefully reinstall the turbine wheel into the
adapter, being certain that the shaft of the wheel
seats into the bearing of the adapter and that the
“dimple” on the wheel faces you.
8. Carefully reinstall the gland into the adapter, being
certain that the shaft of the wheel seats into the
bearing of the gland; press the gland all the way in,
being sure the wheel rotates freely.
9. Reinstall the meter adapter, O-rings, piping boss,
or bypass valve, tighten all fasteners and reestablish the water supply to the system.
10. Check for proper water meter operation by opening
a downstream faucet and observing the water flow
indicator light on the 460i display.
*RoVer is a trademark of Hach Chemical Company.
Screen
Brine Control
Figure 19
Injector
Figure 20
Page 19
19
Troubleshooting
Your water conditioning system is designed and
manufactured for efficient, low maintenance service.
However, if problems occur, this section provides a list
of possible causes and solutions. You can solve some
problems yourself, such as low salt in the salt storage
tank or a blown household fuse. However, some
problems require installer or dealer assistance.
ProblemPossible CauseSolution
1. Clock does not display
time of day.
2. Clock does not display
correct time of day.
3. Time display continues
to advance.
4. Time display shows
something other than
time of day.
5. No water flow display
when water is flowing.
6. Control regenerates at
wrong time of day.
7. Timer stalled in
regeneration cycle.
8. Continuous
regeneration. Camshaft
does not stop at the end
of regeneration.
a. Transformer cord unplugged.
b. No electric power at outlet.
c. Defective transformer.
d. Defective circuit board.
a. Outlet operated by switch.
b. Incorrect voltage or frequency (Hz).
c. Power outages.
a. Defective time set switch.a. Replace timer.
a. Electrical interference.
b. Defective circuit board.
a. Bypass valve in bypass.
b. Meter probe disconnected or not
fully connected to meter housing.
c. Restricted meter turbine rotation
due to foreign material in meter !
d. Defective meter probe.
e. Defective circuit board.
a. Power outages.
b. Clock set incorrectly.
a. Motor dead.
b. Motor runs backward.
c. No electric power at outlet.
d. Broken gear.
e. Defective switch.
f.Air leak in brine connections.
g. Binding of camshaft.
h. Water pressure greater than 25 psi
(1.72 bar) during regeneration !
i.Defective circuit board.
a. Broken switch actuator on gear.
b. Defective switch.
Important: Service procedures that require the water
pressure to be removed from the system are marked
with a !. To remove water pressure from the system, put
the bypass valve or three-valve bypass into the bypass
position and open the backwash drain valve (the sixth
valve back from the control) with a screwdriver. Restore
system water pressure when the service work is
complete.
a. Connect power.
b. Repair outlet or use working outlet.
c. Replace transformer.
d. Replace timer.
a. Use outlet not controlled by switch.
b. Replace timer with one of correct
voltage and frequency (Hz).
c. Reset clock.
a. Disconnect power to unit. Restore
power and reset time of day display.
b. Replace timer.
a. Shift bypass valve to not-in-bypass
position.
b. Fully insert probe into meter housing.
c. Remove meter housing, free up turbine
and flush with clean water. Turbine
should spin freely. If not, replace meter.
d. Replace timer.
e. Replace timer.
a. Reset clock to correct time of day.
b. Reset clock to correct time of day.
a. Replace timer.
b. Replace timer.
c. Repair outlet or use working outlet.
d. Replace timer.
e. Replace timer.
f.Check all junction points and make
appropriate corrections.
g. Remove foreign object obstruction from
valve discs or camshaft.
h. Install pressure regulator.
i.Replace timer.
a. Replace timer.
b. Replace timer.
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ProblemPossible CauseSolution
9. Control will not
regenerate automatically
or when button is
pressed.
10. Control will not
regenerate automatically
but will regenerate when
button is pressed.
11. Run out of soft water
between regenerations.
12. Control will not draw
brine.
13. Brine tank overflow.a. Brine valve disc 1 being held open
a. Electric cord or transformer
unplugged.
b. No electric power at outlet.
c. Defective motor.
d. Broken gear.
e. Binding in gear train.
f.Defective switch.
a. If water flow display is not operative,
refer to Item 5.
b. Defective circuit board.
c. Incorrect hardness and capacity
settings.
a. Improper regeneration.
b. Fouled softener resin.
c. Incorrect salt setting.
d. Incorrect hardness or capacity
settings.
e. Water hardness has increased.
f.Restricted meter turbine rotation
due to foreign material in meter !
g. Excessive water usage below
1/5 gallon per minute.
a. Low water pressure.
b. Restricted drain line.
c. Injector plugged !
d. Injector defective !
e. Valve disc 2 and/ or 3 not closed.
f.Air check valve prematurely closed.
by foreign matter.
b. Uncontrolled brine refill flow rate.
c. Valve disc 2 not closed during brine
draw causing brine refill.
d. Air leak in brine line to air check.
e. Improper drain control for injector.
f.Drain control clogged with resin or
other debris.
a. Connect power.
b. Repair outlet or use working outlet.
c. Replace timer.
d. Replace timer.
e. Replace timer.
f.Replace timer.
a. Same as Item 5.
b. Replace timer.
c. Set to correct values. See Programming
section.
a. Repeat regeneration, making certain
that correct salt dosage is used.
b. Use resin cleaner. See Note 1.
c. Set salt control to proper level. See salt
setting chart.
d. Set to correct values. See Programming
section.
e. Set hardness to new value. See
Programming section.
f.Remove meter housing, free up turbine
and flush with clean water. Turbine
should spin freely; if not, replace meter.
g. Repair leaky plumbing and/or fixtures.
a. Make correct setting according to
instructions.
b. Remove restriction.
c. Clean injector and screen.
d. Replace injector and cap.
e. Remove foreign matter from disc and
check disc for closing by pushing in on
stem. Replace if needed.
f.Put control momentarily into brine refill.
Replace or repair air check if needed.
a. Manually operate valve stem to flush
away obstruction.
b. Remove variable salt controller to clean
it and the ball.
c. Flush out foreign matter holding disc
open by manually operating valve stem.
d. Check all connections in brine line for
leaks. Refer to instructions.
e. Too small of a drain control with a “B” or
“C” injector will reduce draw rates.
Reference Pressure Graphs.
f.Clean drain control.
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ProblemPossible CauseSolution
14. System using more or
less salt than salt control
is set for.
15. Intermittent or irregular
brine draw.
16. No conditioned water
after regeneration.
17. Control backwashes at
excessively high or low
rate.
18. Flowing or dripping water
at drain or brine after
regeneration.
19. Hard water leakage
during conditioned water.
a. Inaccurate setting.
b. Foreign matter in controller causing
incorrect flow rates.
c. Defective controller.
a. Low water pressure.
b. Defective injector !
a. Unit did not regenerate.
b. No salt in brine tank.
c. Plugged injector !
d. Air check valve closed prematurely.
a. Incorrect backwash controller
used.!.
b. Foreign matter affecting controller
operation !
a. Drain valve (5 or 6) or brine valve (1)
held open by foreign matter.
b. Valve stem return spring on top plate
weak.
a. Improper regeneration.
b. Leaking of bypass valve !
c. O-ring around riser tube damaged !
a. Make correct setting.
b. Remove variable salt controller and
flush out foreign matter. Manually
position control to brine draw to clean
controller (after so doing, position
control to “purge” to remove brine from
tank).
c. Replace defective part.
a. Set pump to maintain at least 20 psi
(1.38 bar) at softener.
b. Replace both injector and injector cap.
a. Check for power.
b. Add salt to brine tank.
c. Remove injector and flush it and injector
screen.
d. Put control momentarily into refill to free
air check. Replace or repair air check if
needed. Refer to Instructions.
a. Replace with correct size controller.
b. Remove controller and clean it and the
ball.
a. Manually operate valve stem to flush
away obstruction.
b. Replace spring.
a. Repeat regeneration making certain
correct salt dosage is used.
b. Replace O-ring.
c. Replace O-ring.
Note 1: The use of resin cleaners in an unvented enclosure is not recommended. This may cause damage to the timer.
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Copyright 1999 Osmonics, Inc.
Printed in the USA P/N 1017947 Rev. B
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