Autotrol 255 series User manual

Autotrol®Series 255 Valve / 440i Control

Water Conditioning Control System

Installation, Operation and Maintenance Manual

Osmonics reserves the right to revise specifications and designs to improve products at any time without notice.

Introduction

The Series 255 control system combines design

simplicity with 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

control system offers a unique “separation” capability

illustrated in this manual.

Of interest to the owner and 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 low voltage electric motor

provides all the power for the clock 440i timer and

the operation of the control.

•Program clock (timer) provides guest regeneration

capabilitiy.

•Control may be indexed manually with or without

power to its service or regeneration positions. Legend

on timer face plate indicates control valve position.

•No moving parts in water stream means no close

tolerance components subject to fouling. Thus, the

system is especially effective on iron-bearing water.

•No dynamic seals that could cause leakage

through wear or fatigue.

•Control accepts NORYL or brass manifold or

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 in

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 (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.

Table of Contents

Introduction ...................................................... 2

Superior Design

Superior Operation

Installation ........................................................ 3

Location Selection

Water Line Connection

Drain Line Connection

Overflow Line Connection

Electrical Connection

Increasing the Length of the

Transformer Cord ............................................ 5

Placing Conditioner into Operation ............... 5

Adjustment of Timer ........................................ 6

Special Features of Timer ............................... 7

Adjustment of Brine Control........................... 7

How to Set the Salt Dial

Removing the Series 255

Control Module for Servicing ......................... 8

Preventive Maintenance.................................. 9

Specifications................................................. 10

Pressure Graphs ............................................ 11

Flow Diagrams ............................................... 12

Replacement Parts ........................................ 14

Troubleshooting ............................................. 18

Disinfection of Water Conditioners.............. 19

* NORYL is a Trademark of General Electric Company

Disinfection of Water Conditioners

The materials of construction of the modern water

conditioner will not support bacterial growth, nor will

these materials contaminate a water supply. However,

the normal conditions existing during shipping, storage

and installation indicate the advisability of disinfecting

a conditioner after installation, before the conditioner

is used to treat potable water. In addition, during

normal use, a conditioner may become fouled with

organic matter, or in some cases, with bacteria from

the water supply.

Thus every conditioner should be disinfected after

installation, some will require periodic disinfection

during their normal life, and in a few cases disinfection

with every regeneration would be recommended.

Depending upon the conditions of use, the style of

conditioner, the type of ion exchanger, and the disin-

fectant available, a choice can be made among the

following methods.

Sodium or Calcium Hypochlorite

Application

These materials are satisfactory for use with polystyrene

resins, synthetic gel zeolite, greensand and bentonites.

5.25% Sodium Hypochlorite

These solutions are available under trade names such as

Clorox, Linco, Bo Peep, White Sail and Eagle Brand

Bleach. If stronger solutions are used, such as those sold

for commercial laundries, adjust the dosage accordingly.

1. Dosage

a. Polystyrene resin; 1.2 fluid ounce per cubic foot.

b. Non-resinous exchangers; 0.8 fluid ounce per

cubic foot.

2. Brine tank conditioners

a. Backwash the conditioner, and add the required

amount of hypochlorite solution to the brine well

of the brine tank. (The brine tank should have

water in it to permit the solution to be carried into

the conditioner.)

b. Proceed with the normal regeneration.

Calcium Hypochlorite

Calcium hypochlorite, 70% available chlorine, is

available in several forms including tablets and gran-

ules. These solid materials may be used directly,

without dissolving before use.

1. Dosage

a. 2 grains (approximately 0.1 ounce) per cubic foot.

2. Brine tank conditioners

a. Backwash the conditioner and add the required

amount of hypochlorite to the brine well of the

brine tank. (The brine tank should have water in it

to permit the chlorine solution to be carried into

the conditioner.)

b. Proceed with the normal regeneration.

Problem Possible Cause Solution

8.Control backwashes or purges at a. Incorrect drain controller used. a. Replace with correct size drain controller.

excessively low or high rate.

b. Foreign matter affecting controller operation. b. Remove drain controller and clean ball and seat.

9. Flowing or dripping water at drain a. Drain valve (5 or 6) or brine valve (1) a. Manually operate valve stem to flush

or brine line after regeneration. held open by foreign matter or particle. away obstruction.

b.Valve stem return spring weak. b.Replace spring.

10. Hard water leakage after a. Improper regeneration. a. Repeat regeneration making certain

regeneration correct salt dosage was set.

b.Leaking of external bypass valve. b.Replace o-ring.

c. O-ring around riser pipe damaged. c. Replace o-ring.

d.Leaking past bypass valve disc. d.Replace valve disc.

Figure 1 Autotrol Series 256 Bypass Valve

Figure 2 Typical globe valve bypass system

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°F (1°C)

or over 120°F (49°C).

6. Do not install unit near acid or acid fumes.

7. The use of resin cleaners in an unvented enclosure

is not recommended.

Water Line Connection

The installation of a bypass valve system is recommended

to provide for 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 (Figure 1) and plumbed-in

globe valves (Figure 2). Though both are similar in

function, the 256 Autotrol Bypass offers simplicity and

ease of operation.

Not in Bypass In Bypass

Water Water

Conditioner Conditioner

Not in Bypass In Bypass

Water Water

Conditioner Conditioner

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 installa-

tions, using an appropriate adapter fitting (not

supplied), connect 1/2 inch (1.3 cm) plastic tubing

to the drain line connection of the control valve.

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). Also, purchase appropriate fitting to

connect the 3/4-inch tubing to the 1/2-inch NPT

drain connection.

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 (2.76 bar). You may elevate an additional 2 feet

(61 cm) for each additional 10 psi (.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 line

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.

Troubleshooting

The technology upon which the Series 255 control is based is well established and proven in service over many

years. However, should a problem or question arise regarding the operation of the system, the control can be very

easily serviced. The control module can be quickly replaced or adjustments can be made at the installation. For

parts mentioned, refer to exploded views in the Replacement Parts section of this manual.

Problem Possible Cause Solution

1.Control will not regenerate a. Transformer or motor not connected. a. Connect power.

automatically. b.Defective timer motor. b.Replace motor.

c. Skipper pins not down on timer skipper c. Depress pins for days regeneration

wheel. required.

d.Binding in gear train of timer. d.Replace timer.

2.Control regenerates at wrong a. Time set incorrectly. a. Correct time setting according

time of day. to instructions.

3. Control will not draw brine. a. Low water pressure. a. Set pump to maintain 20 psi at softener.

b.Restricted drain line. b.Change drain to remove restriction.

c. Injector plugged. c. Clean injector and screen.

d.Injector defective. d.Replace injector.

e. Valve disc 2 and/or 3 not closed. e. Remove foreign matter from disc and check

disc for closing by pushing in on stem.

Replace if needed.

f. Air check valve closes prematurely. f. Put control momentarily into brine/slow rinse.

Replace or repair air check if needed.

g.Timer locking pin not horizontal g.Turn to horizontal position.

4.Brine tank overflow. a. Brine valve disc 1 being held open a. Manually operate valve stem to flush

by foreign matter. away obstruction.

b.Uncontrolled brine refill flow rate. b.Remove brine control to cleanball and

seat.

c. Valve disc 2 not closed during brine c. Flush out foreign matter holding disc

draw causing brine refill. open by manually operating valve stem.

d. Air leak in brine line to air check. d. Check all connections in brine line for

leaks. Refer to instructions.

e. Improper drain control for injector. e. Too small of a drain control with a "B" or

"C" injector will reduce draw rates. See

Pressure Graphs.

f. Drain control clogged with resin or f. Clean drain control.

other debris.

5.System using more or less salt a. Foreign matter in controller causing a. Remove brine control and flush out

than salt dial setting. incorrect flow rates. foreign matter. Manually position control

to brine/slow rinse to clean controller

(after so doing position control to “purge”

to remove brine from tank)

b.Defective controller. b.Replace brine control.

6. Intermittent or irregular brine draw. a. Low water pressure. a. Set pump to maintain 20 psi at softener.

b. Defective injector. b.Replace injector.

7.No conditioned water after a. No salt in brine tank. a.Add salt to brine tank.

regeneration. b.Injector plugged. b.Clean injector and screen.

c. Air check valve closes prematurely. c. Put control momentarily into brine/slow rinse.

Replace or repair air check if needed.

Important

Never insert 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.

Figure 3

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 line to a

fitting installed on the air check. Teflon* tape all

threaded connections.

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

In the absence of a safety overflow and in the event of

a malfunction, the BRINE TANK OVERFLOW will direct

“overflow” to the drain instead of spilling on the floor

where it could cause considerable damage. This fitting

should be on the side of the cabinet or brine tank.

To connect overflow, locate hole on side of brine tank.

Insert overflow fitting (not supplied) into tank and

tighten with plastic thumb nut and gasket as shown

(Figure 4). 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. Do not tie into drain line of

control unit. Overflow line must be a direct, separate

line from overflow fitting to drain, sewer or tub. Allow

an air gap as per drain line instructions (Figure 3).

Right Way

Overflow

Installed

Brine Tank

Connect 1/2 in (1.3 cm) I.D.

Tubing or Hose and Run

to Drain Figure 4

Low Voltage Transformer

Only use the included transformer for powering the

440i timer. Connect the plug of the transformer sec-

ondary cable to the mating socket at the rear of the

timer housing on the motor.

Be certain that the transformer is plugged into a correct

voltage source that is not controlled by a wall switch.

Fitting

* Teflon is a registered trademark of E.I. Dupont & Co. 17

440i Timer

Part

Code No. Description Qty.

1 Skipper Wheel Assembly: 1

1031740 6-Day

1031742 7-Day

2 1030659 Washer 1

3 1006091 Screw, No. 6 x 1/2 in 2

4 1006601 Bowed Washer 1

5 1031756 Tripper Arm Assembly 1

6 1030830 Spring 1

7 1030821 Retainer 1

8 1001569 Motor, 12 Volt, 60 Hz 1

9 Transformer:

1000810 Japanese

1000811 North American

1000812 Australian

1000813 British

1000814 European

* 1000907 Transformer Extension Cord 1

15 ft. (4.6 m)

Piping Boss

Part

Code No. Description Qty.

1 Piping Boss Kit 1

(Includes Hardware):

1040277 3/4 in NPT, Brass,

3/8 in NPT Drain

1040278 1 in NPT, Brass,

1/2 in NPT Drain

1040281 3/4 in BSPT, Brass,

3/8 in BSPT Drain

1040282 1 in BSPT, Brass,

1/2 in BSPT Drain

1040279 3/4 in NPT, Noryl,

1/2 in NPT Drain

1040280 1 in NPT, Noryl,

1/2 in NPT Drain

1040283 3/4 in BSPT, Noryl,

1/2 in BSPT Drain

1040284 1 in BSPT, Noryl,

1/2 in BSPT Drain

2 1040339 Piping Boss Installation Kit 1

Bypass Valve

Part

Code No. Description Qty.

1 1040769 Bypass Body Assembly 1

2 1040524 Bypass Installation Kit 1

Service Kits:

* 1034301 Rotor Replacement

* 1034302 Kit, Service, Rotor Seals and Two Clips

* 1034303 24pk, Rotor Clips

Tube Adapter Kits

Part

Code No. Description Qty.

* 1001606 3/4 Inch Copper Tube Adapter Kit 1

* 1001670 1 Inch Copper Tube Adapter Kit 1

* 1001608 22mm Copper Tube Adapter Kit 1

* 1001609 28mm Copper Tube Adapter Kit 1

* 1001613 3/4 Inch CPVC Tube Adapter Kit 1

* 1001614 1 Inch CPVC Tube Adapter Kit 1

* 1001615 25mm CPVC Tube Adapter Kit 1

* 1001769 3/4 Inch NPT Plastic Pipe Adapter Kit 1

* 1001603 1 Inch NPT Plastic Pipe Adapter Kit 1

* 1001604 3/4 Inch BSPT Plastic Pipe Adapter Kit 1

* 1001605 1 Inch BSPT Plastic Pipe Adapter Kit 1

* 1001611 3/4 Inch BSPT Brass Pipe Adapter Kit 1

* 1001610 1 Inch NPT Brass Pi0pe Adapter Kit 1

* 1001612 1 Inch BSPT Brass Pipe Adapter Kit 1

* Not Shown

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 10A).

Note: The following steps will require turning the

pointer knob, (Figure 8), to various positions. Insert

a wide blade screwdriver into arrow slot in pointer

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, (Figure 8).

Press in and rotate knob COUNTERCLOCKWISE

until arrow points directly 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 approxi-

mately 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(water begins to flow steadily from the drain),

open the water supply valve all the way.

D. Allow water to run to drain until clear.

E. Turn off water supply and let the unit stand for

about 5 minutes. This will allow all trapped air to

escape from the tank.

4. Add water to brine tank (initial fill).

With a bucket or hose, add approximately 4 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 1inch (25 mm)

above the platform.

Increasing the Length of the

Transformer Cord

If it is necessary to extend the length of the transformer

cord, an optional 15 foot (4.6 m) extension is available,

(see Figure 5) or the cord may be spliced as follows:

1. Strip insulation from wire 5/16-inch(8mm) from wire

end.

2. Insert stripped wire into barrel of connector and

crimp. For best results, crimp twice per wire as

shown (Figure 6).

Splice connectors or extension wire is not supplied.

They are available at hardware or electrical stores.

Figure 5

50 feet(15.24m) maximum, 18 AWG solid

or stranded insulated copper wire.

Figure 6

Splice Connector

(22-18 AWG)

440i Timer

Bypass Valve

Piping Boss

Note: Do not use pipe joint compound

when threading pipe into the Noryl piping

boss. Use only Teflon®pipe tape. Do not

overtighten pipe into Noryl piping boss.

* Teflon is a registered Trademark of E. I.

Dupont Nemours and Co.

TO SETTIME OF DAY

PULL KNOB AND ROTATE

MANUAL REGENERATION:

PRESS KNOB AND TURN CLOCKWISE

TO “START” –

RELEASE

DAY

BRINE/

SLOW RINSE

FAST RINSE/ BACKWASH

START

REFILL

CONDITIONED

WATER

6PM

3PM

9AM3AM

6AM

NOONMIDNIGHT

5. Put into operation.

A. Open water supply valve slowly to full open

position.

B. Carefully advance pointer knob COUNTER-

CLOCKWISE to center of FAST RINSE/REFILL

position and hold there until air check (Figure 7) fills

with water and water starts to flow through brine

line into brine tank. Do not run for more than 2

minutes.

C. Advance pointer knob COUNTERCLOCKWISE

until arrow points to the center of the BRINE/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 3 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.

Figure 7

Control Valve

Air Check Check Female

Ball Elbow

1. Set days of regeneration on skipper wheel (Figure 8).

• Pull all skipper pins outward (away from control).

• Rotate skipper wheel until day arrow points to

current day or number 1.

• Depress skipper pin(s) at day(s) for which

regeneration is desired.

2. Set the time of day .

• Grasp timer knob and pull outward.

• Rotate in either direction until the timer arrow

points to the actual time of day (Figure 8).

• Release timer knob .

Note: With the time of day properly set, the conditioner

will regenerate at about 2:30 a.m. If you prefer to have

the unit regenerate at an earlier or later time, simply set

the current time-of-day accordingly. (e.g., To have the

unit REGENERATE/BACKWASH at 4:30 a.m. - 2 hours

later -set the clock 2 hours earlier than the actual

current time).

Note: The Timer Locking Pin should always be horizon-

tal (Figure 8) during operation.

Figure 8

Skipper Wheel

Skipper Pins

Day Arrow

Time Arrow

Pointer Knob Timer Knob

Adjustment of Timer

Brine

Line

Timer

Locking Pin

Part

Code No. Description Qty.

13 1010429 O-Ring BN 1

14 1010428 O-Ring EP 1

15 Locking Bar: 1

1031402 English Language

1031403 French Language

1031404 German Language

1031405 Italian Language

1031406 Japanese Language

1031407 Spanish Language

16 1006093 Screw, No. 8 x 9/16 in 1

17 1001580 Spring, Valve Discs 9

18 1032565 Valve Cover, Standard, Black 1

19 1000062 i-Lid Cover 1

20 1000297 Extended Connector 1

(For use with i-Lid Cover)

21 High Style Covers:

1041087 Beige/Brown

1041088 Black/White

1041091 Beige/Black

Kits:

22 1033066 New to Old Aircheck Adapter

23 1001404 O-Ring Group: Tank Adapter

1010117 (1), 1010407 (1),

1010410 (4)

24 1040459 O-Ring Group: Piping Boss

1010431 (1), 1010411 (2)

25 1041010 13/16 Rubber Insert (Optional)

Valve Discs:

* 1000250 Standard

* 1000252 Severe Service

Valve

Part

Code No. Description Qty.

1 1000232 Valve Assembly, 1

w/o Flow Controls

2 Camshaft: 1

1031950 Standard, One-Piece

1033024 Standard, Segmented

1033025 Extra Salt, Segmented

1033026 Long Rinse, Segmented

1032969 Water Saver, Segmented

3 1030501 Camshaft Bearing 1

4 1031391 Timer Locking Pin 1

5 1000226 Screen/Cap Assembly 1

with O-Ring

6 Drain Control Assembly 1

with O-Rings:

1000209 No. 7 (1.2 gpm; 4.5 lpm)

1000210 No. 8 (1.6 gpm; 6.1 lpm)

1000211 No. 9 (2.0 gpm; 7.6 lpm)

1000212 No. 10 (2.5 gpm; 9.5 lpm)

1000213 No. 12 (3.5 gpm; 13.2 lpm)

1000214 No. 13 (4.1 gpm; 15.5 lpm)**

1000215 No. 14 (4.8 gpm; 18.2 lpm)**

7 1030502 Ball, Flow Control 2

8 Brine Refill Control: 1

1034261 1 to 10 lbs Salt

1034263 3 to 19 lbs Salt

9 Injector Assembly 1

with O-Rings:

1032970 "A" Injector - White

1032971 "B" Injector - Blue

1032972 "C" Injector - Red

10 Injector Cap with O-Ring: 1

1000217 "A" Cap

1000218 "B" Cap

1000219 "C" Cap

11 1033784 Tank Adapter Assembly 1

12 1032416 Air Check Kit 1

*Not Shown

**Flow control does not use Flow Control Ball (1030502).

Guest Cycle

When abnormally high water usage exhausts your

water conditioner’s capacity ahead of schedule, an

extra regeneration can be achieved by depressing the

pointer knob with a wide blade screwdriver and turning

COUNTERCLOCKWISE to START (Figure 8). It will

take a few minutes for regeneration to start. Normal

regeneration schedule will not be disrupted.

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 and turning COUNTER-

CLOCKWISE (Figure 8). Manual time cycle: BACK-

WASH-14 minutes; BRINE/SLOW RINSE- 52 minutes;

FAST RINSE/REFILL-10 minutes. Do not exceed 10

minutes for the FAST RINSE/REFILL cycle as this will

cause excessive salt usage during the next regenera-

tion and possibly a salt residue in the softened water.

Adjustment of Brine Control

All models may be adjusted to produce maximum to

minimum conditioning capacities by setting the salt dial

(Figure 9) which controls the amount of salt used per

regeneration. When desired, the minimum setting may

be used on installations if the frequency of regeneration

is increased to compensate for the lower regenerated

conditioning capacity. Your installing dealer will set

your unit for proper salt usage. Further adjustments are

needed only if water supply changes or if water use

changes dramatically.

How to Set Salt Dial

Insert screwdriver into slot of salt dial and move the

pointer knob to proper salt setting (Figure 9).

Note: Using a screwdriver in the salt dial and turning

the dial against one of the stops allows an easy means

to assemble or disassemble the brine control from the

valve. Reset the window to the desired LBS (of) SALT

after service and reinstallation are complete.

Note: To convert salt dial settings from English to Metric,

divide by 2.2 (e.g., 12 pounds ÷2.2 = 5.5 kg of salt).

The amount of salt placed into the regenerant storage

tank has nothing to do with the amount of salt used

during regeneration. 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 regeneration. (e.g. when set at 15 lbs. [6.8 kg]

The amount of brine the conditioner will use for each

regeneration will contain 15 lbs. [6.8 kg] of salt, etc.).

Never let the amount of salt in the salt storage tank be

lower than the normal liquid level.

Figure 9

Special Features of Timer

Salt Dial

Valve Body

Tank Adapter Module

Replacement Parts

20 (Only for use with i-Lid Cover #19)

23 24

24 24

Inlet

Drain

Outlet

Removing the Series 255 Control

Module for Servicing

1. Unplug the transformer from the motor.

2. Shut-off water supply or put bypass valve(s) into

bypass position.

3. Remove cover (Figure 10-A), and with screwdriver,

relieve tank pressure by pushing open the valve on

control as shown (Figure 10-B).

4. Remove screw in locking bar (Figure 10-C).

Figure 10-A

Figure 10-C

Figures 10-B

Outlet Drain Inlet

Outlet

DrainInlet

Inlet

Drain

Outlet

5. Apply downward hand pressure on control and pull

locking bar out (Figure 10-D).

6. Using a rocking motion, lift control from the tank

adapter (Figure 10-E). If o-ring seals come off with

control put them back into tank adapter sockets.

Lubricate o-rings with silicone lubricant.

7. To replace control module, reverse above procedure.

Preventive Maintenance

Inspect and clean brine tank and screen filter on end of

brine pick-up tube once a year or when sediment

appears in the bottom of the brine tank.

Clean injector screen and injector once a year:

1. Unplug the wall mount transformer.

2. Shut off water supply or put bypass valve(s) into

bypass position.

3. Relieve system pressure by opening valve No. 5 (at

rear) with a screwdriver, (Figure 10-B).

4. Using a screwdriver, remove injector screen and

injector cap (Figure 11).

5. Clean screen using a fine brush. Flush until clean.

6. Using a needle nose pliers, pull injector straight out.

7. Flush water into the injector screen recess of the

valve body to flush debris out through the injector

recess.

8. Clean and flush the injector.

9. Lubricate the o-rings on the injector, injector cap

and injector screen with silicone lubricant.

10.Reinstall the injector, injector cap and injector

screen. See CAUTION note.

11.Plug the wall mount transformer into outlet; reset

time of day.

12.Slowly open water supply valve or return bypass

valve(s) to the "not in bypass" position.

Caution

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.

Figure 11

Figure 10-D

Injector Cap

Injector Screen

Figure 10-E

Injector

Flow Diagrams

Inlet

Drain

Outlet

Inlet

Drain

Outlet

Specifications

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 60 Hz

Optional 12 Volt Transformer Input Electrical Rating........................................................ 115V 50 Hz, 230V 50 Hz,

230V 60 Hz, 100V 60Hz, 100V 50 Hz

Transformer Cord .............................................................................................................................120 in (3.048 m)

Pressure Tank Thread ...................................................................................................................... 2 1/2 in -8 Male

Brine Line Thread .............................................................................................................................1/4 in NPT male

Distributor Tube Diameter Required .....................................................................................13/16 in OD (20.6 mm)

Distributor Tube Length............................................................. 1 1/4 in (31.8 mm) higher than top of mineral tank

Inlet-Outlet Manifold (Brass or NORYL) ............................................3/4 in NPT, 1 in NPT, 3/4 in BSPT, 1 in BSPT

Optional Bypass Valve, Control Module, Tank Adapter .............................................................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 in (1.1 mm) Diameter, Throat .089 in (2.3 mm) Diameter

Injector Size “B” Blue ................................... Nozzle .052 in (1.3 mm) Diameter, Throat .099 in (2.5 mm) Diameter

Injector Size “C” Red.................................... Nozzle .059 in (1.5 mm) Diameter, Throat .099 in (2.5 mm) Diameter

Backwash Controllers Available for..................................................................................... 7, 8, 9, 10, 12, 13, 14 in

(17.8, 20.3, 22.9, 25.4, 30.5 33.0, 35.6 cm) diameter mineral tanks.

All are sized to flow 4.5 gpm/sq ft (183 l/m/m2) of bed area.

Backwash Number 78910121314

Flow (GPM*) 1.2 1.6 2.0 2.5 3.5 4.1 4.8

Flow (LPM*) 4.5 6.0 7.6 9.5 13.2 15.5 18.2

*Approximate flow rates at 60 psi (4.14 bar)

Pressure Graphs