Morton MSD45E User manual

7334159 (Rev. N 6/12/17)
Water Softener
Model MSD45E
How to install, operate and
maintain your Demand
Controlled Water Softener
For best results use MortonrClean and Protect™or
Clean and Protect™Plus Rust Defense™Pellets in your softener.
If you have questions or concerns when
installing, operating or maintaining your
water softener, call our toll free number:
1--888--64 WATER
(1--888--649--2837)
or visit www.mortonwatersofteners.com
When you call, please be prepared to
provide the model and serial number
of your product, located on the rating
decal on back of the top cover.
Do not return water softener to store
System tested and certified by NSF
International against NSF/ANSI Standard 44
for hardness reduction and efficiency,
and certified to NSF/ANSI Standard 372.

2MortonrWater Softener Installation & Operation Manual
Protect your new water softener with
MortonrClean and Protect™or
Clean and Protect™Plus Rust Defense™Pellets
MortonrWater Softener Salt Pellets are made with a time--release formula
that works with your softener to help prevent mineral buildup and keep your
home’s pipes and appliances working their best. Whether you’re looking to
remove iron and fight buildup, or extend your water softener’s life, Mortonr
has the right salt for you. Use one or both of our premium formula pellets
in any water softener for the best results.
Remember to fill your water softener with Mortonr
America’s #1 Brand of Water Softener Salt!

MortonrWater Softener Installation & Operation Manual 3
TABLE OF CONTENTS
PAGE
NO.
WARRANTY ........................................................................ 3
BEFOREYOUSTART ............................................................... 4
UNPACKING / INSPECTION ......................................................... 5
SPECIFICATIONS & PERFORMANCE CLAIMS / DIMENSIONS .......................... 6
BEFORESTARTINGINSTALLATION.................................................. 7
TYPICALINSTALLATIONILLUSTRATION ............................................. 8
INSTALLATIONSTEPS .............................................................. 9--11
PROGRAMMINGTHEMORTONWATERSOFTENER .................................. 12 --13
SANITIZING PROCEDURES ......................................................... 13
WATERCONDITIONINGINFORMATION .............................................. 14
GENERALWATERSOFTENERMAINTENANCE ....................................... 15--16
MORTONWATERSOFTENERFEATURES&SETTINGS................................ 17--20
MORTONWATERSOFTENERSERVICE .............................................. 21--23
REPAIRPARTS..................................................................... 24--27
WARRANTY
MORTON RESIDENTIAL WARRANTY
Morton guarantees to the original owner, that:
One Year Full Warranty:
DFor a period of one (1) year from the date of purchase, all parts will be free of defects in material and workmanship and
will perform their normal functions.
DFor a period of one (1) year from the date of purchase, labor to repair any part deemed to be defective in materials or
workmanship, will be provided at no additional cost.
Limited Warranties:
DFor a period of ten (10) years from the date of purchase, the salt storage tank and fiberglass mineral tank will not rust,
corrode, leak, burst, or in any other manner, fail to perform their proper functions.
DFor a period of three (3) years from the date of purchase, the electronic control board will be free of defects in material
and workmanship and will perform its normal functions.
If, during such respective period, a part proves to be defective, Morton will ship a replacement part, directly to your home, without
charge. Labor necessary to maintain this product is not covered by the product warranty.
If you have questions regarding a Morton product, need assistance with installation or trouble shooting, wish to order a part or
report a warranty issue, we are just a phone call away. Simply dial 1--888--64--WATER (1--888--649--2837) for assistance, or
visit www.mortonwatersofteners.com.
This water softener is manufactured for Morton, P.O. Box 25290, Woodbury, MN 55125--0290
General Provisions
The above warranties are effective provided the water conditioner is operated at water pressures not exceeding 125 psi, and
at water temperatures not exceeding 120F; provided further that the water conditioner is not subject to abuse, misuse,
alteration, neglect, freezing, accident or negligence; and provided further that the water conditioner is not damaged as the result
of any unusual force of nature such as, but not limited to, flood, hurricane, tornado or earthquake.
Morton is excused if failure to perform its warranty obligations is the result of strikes, government regulation, materials
shortages, or other circumstances beyond its control.
*THERE ARE NO WARRANTIES ON THE WATER CONDITIONER BEYOND THOSE SPECIFICALLY DESCRIBED ABOVE.
ALL IMPLIED WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR OF FITNESS FOR A
PARTICULAR PURPOSE, ARE DISCLAIMED TO THE EXTENT THEY MIGHT EXTEND BEYOND THE ABOVE PERIODS.
THE SOLE OBLIGATION OF MORTON UNDER THESE WARRANTIES IS TO REPLACE OR REPAIR THE COMPONENT
OR PART WHICH PROVES TO BE DEFECTIVE WITHIN THE SPECIFIED TIME PERIOD, AND MORTON IS NOT LIABLE
FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES. NO MORTON DEALER, AGENT, REPRESENTATIVE, OR OTHER
PERSON IS AUTHORIZED TO EXTEND OR EXPAND THE WARRANTIES EXPRESSLY DESCRIBED ABOVE.
Some states do not allow limitations on how long an implied warranty lasts or exclusions or limitations of incidental or
consequential damage, so the limitations and exclusions in this warranty may not apply to you. This warranty gives you specific
legal rights, and you may have other rights which vary from state to state. This warranty applies to consumer--owned
installations only.

4MortonrWater Softener Installation & Operation Manual
BEFORE YOU START
FOLLOW THE INSTALLATION INSTRUCTIONS CAREFULLY. FAILURE TO INSTALL THE SOFTENER PROPERLY VOIDS
THE WARRANTY.
BEFORE YOU BEGIN INSTALLATION, READ THIS ENTIRE MANUAL. THEN, OBTAIN ALL THE MATERIALS AND TOOLS
YOU WILL NEED TO MAKE THE INSTALLATION.
CHECK LOCAL PLUMBING AND ELECTRICAL CODES. THE INSTALLATION MUST CONFORM TO THEM. CODES IN
THE STATE OF MASSACHUSETTS REQUIRE INSTALLATION BY A LICENSED PLUMBER. FOR INSTALLATION, USE
PLUMBING CODE 248--CMR OF THE COMMONWEALTH OF MASSACHUSETTS.
USE ONLY LEAD--FREE SOLDER AND FLUX FOR ALL SWEAT--SOLDER CONNECTIONS, AS REQUIRED BY STATE
AND FEDERAL CODES.
USE CARE WHEN HANDLING THE SOFTENER. DO NOT TURN UPSIDE DOWN, DROP, OR SET ON SHARP PROTRU-
SIONS.
DO NOT LOCATE THE SOFTENER WHERE FREEZING TEMPERATURES OCCUR. DO NOT ATTEMPT TO TREAT WA-
TER OVER 120F. FREEZING, OR HOT WATER DAMAGE VOIDS THE WARRANTY.
AVOID INSTALLING IN DIRECT SUNLIGHT. EXCESSIVE SUN HEAT MAY CAUSE DISTORTION OR OTHER DAMAGE TO
NON--METALLIC PARTS.
THE SOFTENER REQUIRES A MINIMUM WATER FLOW OF 3 GALLONS PER MINUTE AT THE INLET. MAXIMUM AL-
LOWABLE INLET WATER PRESSURE IS 125 PSI. IF DAYTIME PRESSURE IS OVER 80 PSI, NIGHTTIME PRESSURE
MAY EXCEED THE MAXIMUM. USE A PRESSURE REDUCING VALVE IF NECESSARY. ( ADDING A PRESSURE RE-
DUCING VALVE MAY REDUCE THE FLOW.)
THE SOFTENER WORKS ON 24V DC ELECTRICAL POWER. BE SURE TO USE THE INCLUDED POWER SUPPLY, AND
PLUG IT INTO A NOMINAL 120V, 60 Hz HOUSEHOLD OUTLET IN A DRY LOCATION ONLY, GROUNDED AND PROPERLY
PROTECTED BY AN OVERCURRENT DEVICE SUCH AS CIRCUIT BREAKER OR FUSE.
THIS SYSTEM IS NOT INTENDED TO BE USED FOR TREATING WATER THAT IS MICROBIOLOGICALLY UNSAFE OF
OF UNKNOWN QUALITY WITHOUT ADEQUATE DISINFECTION BEFORE OR AFTER THEY SYSTEM.
EUROPEAN DIRECTIVE 2002/96/EC REQUIRES ALL ELECTRICAL AND ELECTRONIC EQUIPMENT TO BE DIS-
POSED OF ACCORDING TO WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT (WEEE) REQUIREMENTS.
THIS DIRECTIVE OR SIMILAR LAWS ARE IN PLACE NATIONALLY AND CAN VARY FROM REGION TO REGION.
PLEASE REFER TO YOUR STATE AND LOCAL LAWS FOR PROPER DISPOSAL OF THIS EQUIPMENT.

MortonrWater Softener Installation & Operation Manual 5
UNPACKING / INSPECTION
The parts required to assemble and install the unit
are included in a bag. Thoroughly check the water
softener for possible shipping damage and parts
loss. Also note damage to the shipping cartons.
Remove and discard (or recycle) all packing mater-
ials. To avoid loss of the small parts, we suggest you
keep them in the parts bag until you are ready to use
them.
1spareclip
included
Do not return the water softener to store.
If you have any questions, or there are missing parts or damage, please call
Toll Free 1---888---64WATER (1---888---649---2837).
When you call, please be prepared to provide the model and serial number of
your product, located on the rating decal on back of the top cover.
For more installation or service information visit www.mortonwatersofteners.com

50--3/8”
41--5/8”
INLET
OUT
INLET -- OUTLET
14”
3--7/8”
18--1/4”
6MortonrWater Softener Installation & Operation Manual
SPECIFICATIONS & PERFORMANCE CLAIMS / DIMENSIONS
This model is efficiency rated. The efficiency rating is valid only at the minimum salt dose. This softener has
a demand initiated regeneration (D.I.R.) feature that complies with specific performance specifications
intended to minimize the amount of regenerant brine and water used in its operation.
This softener has a rated softener efficiency of not less than 3,350 grains of total hardness exchange per
pound of salt (based on sodium chloride) and shall not deliver more salt than its listed rating or be operated
at a sustained maximum service flow rate greater than its listed rating. This softener has been proven to
deliver soft water for at least ten continuous minutes at the rated service flow rate. The rated salt efficiency
is measured by laboratory tests described in NSF/ANSI Standard 44. These tests represent the maximum
possible efficiency that the system can achieve. Operational efficiency is the actual efficiency after the system
has been installed. It is typically less than the rated efficiency, due to individual application factors including
water hardness, water usage, and other contaminants that reduce a softener’s capacity.
MODEL MSD45E
RATED CAPACITY (grains @ lbs salt dose) 13,233 @ 2.6
35,700 @ 9.9
45,400 @ 17.2
RATED EFFICIENCY (grains / lb @ min. salt dose) 5,070 @ 2.6
WATER USED DURING REGENERATION (gallons)
@ MINIMUM SALT DOSE
4.3 /
1,000 grains
AMOUNT OF HIGH CAPACITY RESIN (lbs / cu ft) 65.5 / 1.26
RESIN TANK NOMINAL SIZE (in., dia x height) 10 x 40
SERVICEFLOWRATE(gpm) 10.0
PRESSURE DROP AT SERVICE FLOW (psi) 11.2
INTERMITTENT FLOW RATE @ 15 psi (gpm) Y12.3
WATER SUPPLY MAXIMUM HARDNESS (gpg) 120
WATER SUPPLY MAX. CLEAR WATER IRON (ppm) H12
WATER PRESSURE LIMITS (min. / max. psi) z20 --- 125
WATER TEMPERATURE LIMITS (_F) 40 --- 120
WATER SUPPLY MINIMUM FLOW RATE (gpm) 3
REGENERATION CYCLE FLOW RATES (gpm)
FILL (flow to brine tank)
BRINING
BRINE RINSE
MAX. BACKWASH
MAX. FAST RINSE
(flow to drain)
.3
0.22
0.15
2.0
2.0
YIntermittent flow rate does not represent the maximum service flow rate used for determining the softeners rated capacity and
efficiency. Continuous operation at flow rates greater than the service flow rate may affect capacity and efficiency performance.
HCapacity to reduce clear water iron is substantiated by laboratory test data.
zCanada working pressure: 1.4 -- 7.0 kg/cm@.
This system conforms to NSF/ANSI 44 for specific performance claims as verified and substantiated by test data.

MortonrWater Softener Installation & Operation Manual 7
BEFORE STARTING INSTALLATION
"WHERETOINSTALLTHESOFTENER ................................................
Place the softener as close as possible to the
pressure tank (well system) or water meter (city
water).
Place the softener as close as possible to a floor
drain, or other acceptable drain point (laundry
tub, sump, standpipe, etc.).
Connect the softener to the main water supply
pipe BEFORE or AHEAD OF the water heater.
DO NOT RUN HOT WATER THROUGH THE
SOFTENER. Temperature of water passing
through the softener must be less than 120_F
(49_C).
Keep outside faucets on hard water to save soft
water and salt.
Put the softener in a place water damage is least
likely to occur if a leak develops. The manufac-
turer will not repair or pay for water damage.
A 120V, 60 Hz electrical outlet, to plug the in-
cluded power supply into, is needed near the
softener. Be sure the electrical outlet and
power supply are in an inside location, to
protect from wet weather.
If installing in an outside location, you must take
the steps necessary to assure the softener,
installation plumbing, wiring, etc., are as well
protected from the elements, contamination,
vandalism, etc., as when installed indoors.
Keep the softener out of direct sunlight. The
sun’s heat may soften and distort plastic parts.
"TOOLS,PIPEandFITTINGS,OTHERMATERIALSYOUWILLNEED ....................
GPlastic inlet and outlet fittings included with the
softener allow water flow equivalent to 1” (nominal)
pipe. To maintain full valve flow, 1” pipes to and from
the softener fittings are recommended. You should
maintain the same, or larger, pipe size as the water
supply pipe, up to the softener inlet and outlet.
GUse copper, brass, or galvanized pipe and fittings.
Some codes may also allow PVC plastic pipe.
GALWAYS install the included bypass valve, or 3
shut-off valves. Bypass valves let you turn off water
to the softener for repairs if needed, but still have
water in the house pipes.
GA length of 3/8” inside diameter flexible hose is pro-
vided for the valve drain. See step 6 on page 10.
NOTE: Avoid drain hose runs longer than 30 feet.
Avoid elevating the hose more than 8 feet above the
floor. Make the valve drain line as short and direct as
possible.
GIf local codes do not allow use of a flexible drain
hose, a rigid valve drain run must be used. Purchase
a compression fitting (1/4 NPT x 1/2” minimum tube)
and 1/2” copper tubing from your local hardware
store. Plumb a rigid drain line as needed (See Fig-
ure 3 on page 10). Comply with plumbing codes.
GA length of 3/8” inside diameter hose is provided for
the salt tank drain. See step 7 on page 11. If a longer
length is needed, you can buy good quality, thick--
wall, flexible hose at most hardware stores or supply
houses.
GNugget or pellet water softener salt is needed to fill
the brine tank (see page 11 and 15).
"PLANHOWYOUWILLINSTALLTHESOFTENER .....................................
You must first decide how to run in and out pipes to
the softener. Look at the house main water pipe at
the point where you will connect the softener. Is the
pipe soldered copper, glued plastic, or threaded
brass/galvanized? What is the pipe size?
Now look at the typical installation illustration on
page 6. Use it as a guide when planning your partic-
ular installation. Be sure to direct raw, hard water
to the softener valve inlet fitting. The valve is
marked IN and OUT.

8MortonrWater Softener Installation & Operation Manual
TYPICAL SOLDERED COPPER or CPVC INSTALLATIONS
VALVE
INLET
o--ring seal (2) *
clip (2) *
hard water to
outside faucets
hard water
soft water
*included with softener -- Pipe and
fittings supplied by installer.
INSTALLATION USING 3 -- VALVE BYPASS
SOFT
WATER
HARD
WATER
TO SOFTENER
INLET
FROM
SOFTENER
OUTLET
CROSS -- OVER
Use if water supply flows from the left.
Include single or 3 -- valve bypass.
INLET valve
OUTLET
valve
BYPASS
valve
Dfor soft water SERVICE:
-- O p e n the inlet and outlet
valves.
-- C l o s e the bypass valve.
Dfor hard water BYPASS:
-- C l o s e the inlet and outlet
valves.
-- O p e n the bypass valve.
1” NPT installa-
tion adaptor (2) *
1” NPT installa-
tion adaptor (2) *
1” NPT sweat
adaptor (2)
not included
o--ring seal (2) *
clip (4) *
Bypass Valve *
1” NPT sweat
adaptor (2)
not included
120V AC
outlet

MortonrWater Softener Installation & Operation Manual 9
INSTALLATION STEPS
1. INSTALL BYPASS VALVE and/or PLASTIC
INSTALLATION ADAPTORS:
NOTE: Before installing the bypass valve or plastic instal-
lation adaptors, be sure the turbine and support are firmly
in place, in the valve outlet. Blow into the valve port and
observe the turbine for free rotation.
turbine
turbine support sensor port
"Push the bypass valve, with lubricated o--ring
seals in place, into the valve inlet and outlet ports,
Figures 1A and 1C.
-- AND/OR --
"Slide plastic installation adaptors, with lubricated
o--ring seals in place, into the softener valve or
bypass valve inlet and outlet ports, Figure 1A.
"Snap the two large plastic clips in place, from the
top down, Figures 1A and 1B. Be sure they snap
into place. Pull on the plastic installation adapto-
rs, or bypass valve, to make sure they are held
securely in place.
2. INSTALL THE BRINE TANK OVERFLOW FIT-
TINGS:
"Insert the rubber grommet into the 3/4” diameter
hole in the brine tank sidewall, see page 11.
"Push the barbed end of the hose adaptor elbow
into the grommet.
3. MOVE THE SOFTENER ASSEMBLY (CAB-
INET MODEL), OR RESIN TANK (TWO TANK
MODEL) INTO INSTALLATION POSITION:
"Be sure the installation surface is level and
smooth. If needed, place the tank on a section of
3/4” thick (min.) plywood. Then, place shims under
the plywood as needed to level the softener.
4. PLUMB IN AND OUT PIPES TO AND FROM
SOFTENER:
CAUTIONS: Observe all of the following cautions
while you connect inlet and outlet plumbing.
"Shut off the electric or fuel supply to the water
heater.
"Turn off the house water supply valve and
open faucets to relieve pressure in the pipes.
"BE SURE RAW, HARD WATER IS DIRECTED
TO THE VALVE INLET PORT.
"Be sure to use bypass valve(s).
FIGURE 1
A
B
C
bypass valve or
plastic adaptor
o--ring
clip
cross section of
valve inlet or outlet
clip snaps into place
between larger diameter rings
NOTE: CHECK LOCAL PLUMBING AND ELEC-
TRICAL CODES. THE INSTALLATION MUST
CONFORM TO THEM. In Massachusetts,
plumbing codes of Massachusetts shall be ad-
hered to. Consult with your licensed plumber.
IN OUT
Turn bypass valve
upside down to
connect to floor level
plumbing.
INLET
clip (2)
OUTLET
bypass
valve
clip (2)
plastic installation adaptors
(install in softener valve or
bypass valve)

10 MortonrWater Softener Installation & Operation Manual
INSTALLATION STEPS, continued
"If making a soldered copper installation, do all
sweat soldering before connecting pipes to the
softener fittings. Torch heat will damage plastic
parts.
"When turning threaded pipe fittings onto plastic
fittings, use care not to cross--thread.
"Use pipe joint compound on all external pipe
threads.
"Support inlet and outlet plumbing in some man-
ner (use pipe hangers) to keep the weight off of the
valve fittings.
5. INSTALL GROUNDING WIRE (IF NEEDED):
"To maintain electrical ground continuity in the
house cold water piping, install a #4 copper wire
across the removed pipe section, securely clamping
it at both ends (see Figure 2) -- parts not included.
FIGURE 2
ground wire
inlet -- outlet
pipes
hose clamp
ground (2)
6. CONNECT AND RUN THE VALVE DRAIN
HOSE:
"Measure, cut to length and connect the 3/8” flex-
ible drain hose (provided) to the valve drain fitting.
Use a hose clamp to hold the hose in place.
NOTE: If codes require a rigid drain line, see “Con-
necting a Rigid Valve Drain Tube” in Figure 3.
"Locate the other end of the hose at a suitable
drain point...floor drain, sump, laundry tub, etc.
Check and comply with local codes.
IMPORTANT: If a longer length of hose is needed,
buy and use high quality, thick--wall hose that will
not easily kink or collapse. The water softener will
not work if water cannot exit this hose during regen-
erations.
"Tie or wire the hose in place at the drain point.
Water pressure will cause it to whip during the back-
wash and fast rinse cycles of regeneration. Also pro-
vide an air gap of at least 1--1/2” between the end of
the hose and the drain point. An air gap prevents
possible siphoning of sewer water, into the softener,
if the sewer should back up.
"If raising the drain hose overhead is required to
get to the drain point, do not raise higher than 8’
above the floor. Elevating the hose may cause a
back--pressure that could reduce brine draw during
regenerations.
continued
CONNECTING A RIGID VALVE DRAIN TUBE
FIGURE 3
STANDPIPE
SUMP
LAUNDRY
TUB
1--1/2”
air gap
1--1/2”
air gap
1--1/2” air gap
To adapt a copper drain tube to the softener, buy a compression fit-
ting (1/4 NPT x 1/2”O.D. minimum tube) and needed tubing from
your local hardware store.
1/4” NPT thread
barbs
1/2” outside diameter
copper tube
Clip
Cut barbs from valve drain elbow (pull clip
and remove drain valve elbow from valve)
Compression fitting 1/4 NPT x
1/2” O.D. tube
To standpipe, sump,
laundry tub or other
approved drain.
valve drain
hose
drain fitting
adaptor
PUSH IN
for bypass
PULL OUT
for soft water
‘‘service’’
1--1/2”
air gap
FLOOR DRAIN
overflow
drain hose
valve drain
hose

MortonrWater Softener Installation & Operation Manual 11
INSTALLATION STEPS, continued
7. CONNECT AND RUN THE BRINE TANK
OVERFLOW HOSE:
This drain is for safety only. If the brine tank should
over--fill with water, the excess is carried to the drain.
"Attach a length of flexible hose (included) to the
drain elbow, installed in step 2, page 9. Use a hose
clamptoholditinplace.
"Locate the other end of the hose at the drain
point. Do not elevate this hose higher than the el-
bow on the brine tank. Do not tee this hose to the
valve drain hose.
8. FLUSH PIPES, EXPEL AIR FROM SOFTENER,
AND TEST YOUR INSTALLATION FOR WATER
LEAKS:
CAUTION: To avoid water or air pressure dam-
age to softener inner parts, be sure to do the fol-
lowing steps exactly as listed.
A. Fully open two cold, soft water faucets nearby
the softener.
B. Place bypass valve(s) in ‘‘bypass’’ position. On
a single valve, slide the stem inward to BYPASS,
see page 10. On a 3--valve system, close the inlet
and outlet valves, and open the bypass valve, see
page 8.
C. Fully open the house main water pipe shutoff
valve. Observe a steady flow from both opened fau-
cets.
D. Place bypass valve(s) in ‘‘service”, EXACTLY
as follows. KEEP SOFT WATER FAUCETS OPEN.
1. SINGLE BYPASS VALVE: SLOWLY, pull the
valve stem outward to ‘‘service’’, pausing several
times to allow the softener to pressurize slowly.
2. 3--VALVE BYPASS: Fully close the bypass
valve and open the outlet valve. SLOWLY, open
the inlet valve, pausing several times to allow the
softener to pressurize slowly.
E. After about three minutes, open a HOT water
faucet for one minute, or until all air is expelled, then
close.
F. Close both cold water faucets.
G. Check your plumbing work for leaks and fix right
away, if any are found. Be sure to observe previous
caution notes.
H. Turn on the gas or electric supply to the water
heater. Light the pilot, if applicable.
9. ADD WATER AND SALT TO THE BRINE TANK:
"Remove the salt storage area cover. Add about
three gallons of water into the tank. Do not add into
the brinewell.
"Fill the tank with NUGGET, PELLET or coarse
SOLAR water softener salt. Do not use rock, block,
and ice cream making salts. For best results, we rec-
ommend MortonRSystem SaverRII Pellets for use
in this water softener.
Note: If the softener is installed in a humid basement
or other damp area, it is better to fill the tank with less
salt, more frequently (see salt bridging in the mainte-
nance section). Eighty to 100 lbs of salt will last for
several months, depending on water hardness,
family size, and model of softener.
10. CONNECT TO ELECTRICAL POWER:
"The softener works on 24V DC electrical power.
The included power supply converts 120V AC
household power to 24V DC. Plug the power supply
into a 120V, 60 Hz electrical outlet. Be sure the
outlet is always “live” so it can not be switched off by
mistake.
11. PROGRAM THE MORTON WATER SOFTER
ELECTRONIC CONTROL, page 12.
Questions? Call Toll Free 1--888--64 WATER (1--888--649--2837)
or visit www.mortonwatersofteners.com
When you call, please be prepared to provide the model and serial number,
located on the rating decal on back of the top cover.

PRESENT TIME
PM
12 MortonrWater Softener Installation & Operation Manual
PROGRAMMING THE MORTON WATER SOFTENER
up button
display
DATA button
down button
RECHARGE button
"ELECTRONIC CONTROL SETTINGS REQUIRED...upon installation, and after an extended power out-
age (see Program Memory, page 18).
NOTES:
DWHEN THE POWER SUPPLY IS PLUGGED INTO THE ELECTRICAL OUTLET (STEP 10, PAGE 11),
12:00PM (flashing), and PRESENT TIME show in the upper display area. Program the electronic control as
follows. If A - - - is flashing,please see Model Code setting on page 20.
DA ‘‘beeper’’ sounds while pressing buttons for electronic control programming. One beep signals a change
in the display. Repeated beeps means the electronic control will not accept a change from the button you have
pressed, and you should use another.
DTo program the electronic control, you will use either the SELECT, UP or DOWN buttons.
"SET PRESENT TIME OF DAY ........................................................
NOTE: If the words PRESENT TIME do not show in the display, press the SELECT button until they do.
1. Press either the SELECT, UP or DOWN button
to set. The UP button moves the display ahead;
the DOWN button moves the time backward.
NOTE: Each press of the UP or DOWN button
changes the time by one minute. Holding the but-
tons in changes the time 32 minutes each second.
2. When the present time shows, press SELECT
to apply.
If the present time is between
noon and midnight, be sure PM
shows.
If the present time is between
midnight and noon, be sure AM
shows.

HARDNESS
MortonrWater Softener Installation & Operation Manual 13
PROGRAMMING THE MORTON WATER SOFTENER, continued
"SET WATER HARDNESS NUMBER ...................................................
NOTE: If 25 (factory default) and HARDNESS do not show in the display, press the SELECT button until they
do.
1. Press either the SELECT, UP or DOWN button
to set your water hardness number in the display.
The DOWN button moves the display down to 1.
The UP button moves the display up to 95,110, or
120, depending on the model code.
NOTE: Each press of the UP or DOWN button
changes the display by 1 between 1 and 25. Above
25, the display changes 5 at a time; 25, 30, 35, etc.
Holding a button in changes the numbers twice
each second.
2. When your water hardness number shows,
press SELECT to apply.
You can get the grains per gal-
lon (gpg) hardness of your wa-
ter supply from a water analysis
laboratory, or call and ask your
local water department, if you
are on a municipal supply.
If your water supply contains
ferrous (clear water) iron, in-
crease the hardness setting to
compensate for it as follows:
Add 5 to the hardness number
for each 1 ppm of iron.
The special features of your water softener are explained on pages 17--20.
TO COMPLETE THE INSTALLATION, DO THE SANITIZING BELOW.
SANITIZING PROCEDURES
Care is taken at the factory to keep your water soft-
ener clean and sanitary. Materials used to make the
softener will not infect or contaminate your water
supply, and will not cause bacteria to form or grow.
However, during shipping, storage, installing and
operating, bacteria could get into the softener. For
this reason, sanitizing as follows is suggestedw
when installing.
1. Be sure to complete all installation steps, includ-
ing electronic control programming.
2. Pour about 3/4 oz. of common 5.25% household
bleach (Clorox, Linco, Bo Peep, White Sail, Eagle,
etc.,) into the brinewell.
3. Start a recharge: Press the RECHARGE button
and hold for 3 seconds, until RECHARGE NOW
begins to flash in the display. This recharge draws
the sanitizing bleach into and through the water soft-
ener to sanitize it. Any air remaining in the unit is
purged to the drain.
4. After the recharge has completed, fully open a
cold water faucet, downstream from the softener,
and allow 50 gallons of water to pass through the
system. This should take at least 20 minutes. Close
the faucet.
wNOTE: Sanitizing is recommended by the Water Quality
Association for disinfecting. On some water supplies, they
suggest periodic sanitizing.
NOTE: When the above sanitizing regeneration is over, all remaining bleach is flushed from
the conditioner and your house COLD water supply is fully soft immediately. However, your
water heater is filled with hard water and, as hot water is used, it will refill with soft water.
When all the hard water is replaced, in the water heater, hot only, and mixed hot and cold water
will be fully soft. If you want totally soft water immediately, after the above regeneration, drain
the water heater until the water runs cold. If you do drain the water heater, use extreme care
as the hot water could cause severe burns.

14 MortonrWater Softener Installation & Operation Manual
WATER AND WATER CONDITIONING
WATERCONDITIONINGINFORMATION .................................................
IRON in water can cause stains on clothing and
plumbing fixtures. It can negatively affect the taste
of food, drinking water, and other beverages. Iron in
water is measured in parts per million (ppm). The to-
tal* ppm of iron, and type or types*, is determined by
chemical analysis. Four different types of iron in wa-
ter are: ¡Ferrous (clear water), ©Ferric (red wa-
ter), ¢Bacterial and organically bound iron, £Col-
loidal and inorganically bound iron (ferrous or ferric).
Ferrous (clear water) iron is soluble and dissolves in
water. This water softener will reduce moderate
amounts of this type of iron (see specifications).** It
is usually detected by taking a sample of water in a
clear bottle or glass. Immediately after taking, the
sample is clear. As the water sample stands, it grad-
ually clouds and turns slightly yellow or brown as air
oxidizes the iron. This usually occurs in 15 to 30 mi-
nutes.
When using the softener to reduce Ferrous (clear
water) iron , add 5 grains to the hardness setting for
every 1 ppm of Ferrous (clear water) iron. See “Set
Water Hardness Number” section.
Ferric (red water), and Bacterial and organically
bound irons are insoluble. This water softener will
not remove ferric or bacterial iron. This iron is visible
immediately when drawn from a faucet because it
has oxidized before reaching the home. It appears
as small cloudy yellow, orange, or reddish sus-
pended particles. After the water stands for a period
of time, the particles settle to the bottom of the con-
tainer. Generally these irons are removed from wa-
ter by filtration. Chlorination is also recommended
for bacterial iron.
Colloidal and inorganically bound iron is of ferric or
ferrous form that will not filter or exchange out of wa-
ter. In some instances, treatment may improve col-
loidal iron water, but always CONSULT A QUALI-
FIED WATER CHEMISTRY LAB before attempting
to treat it. Colloidal iron water usually has a yellow
appearance when drawn. After standing for several
hours, the color persists and the iron does not settle,
but remains suspended in the water.
Iron in water causes stains on clothing and plumbing
fixtures. It negatively affects the taste of food, drink-
ing water, and other beverages.
*Water may contain one or more of the four types of
iron and any combination of these. Total iron is the
sum of the contents.
**Capacity to reduce clear water iron is substan-
tiated by WQA test data.

MortonrWater Softener Installation & Operation Manual 15
GENERAL WATER SOFTENER MAINTENANCE
CHECKING THE SALT STORAGE LEVEL, AND ADDING SALT (also see page 11) ..........
Brine (salt dissolved in water) is needed for each
and every regeneration. The water for making brine
is metered into the salt storage area by the softener
valve and electronic control. However, you must
maintain a level of salt in the tank. In humid areas,
it is best to add less salt, more often.
WHEN TO ADD SALT: Check the salt level a few
weeks after you install the softener and every week
after that. Add when the brine tank is from 1/3 to 1/2
full. Neverallow the softener to use all the salt before
you add more. Without salt, you will soon have hard
water.
Use clean water softener salt only, at least 99.5%
pure. NUGGET, PELLET or coarse SOLAR salts are
recommended. Do not use rock, block, granulated,
and ice cream making salts. They contain dirt and
sediments, or mush and cake, and will create main-
tenance problems. For best results, we recommend
MortonRClean and Protect™or Clean and
Protect™Plus Rust Defense™Pellets for use in this
water softener.
BREAKINGASALTBRIDGE ...........................................................
Sometimes, a hard crust or salt bridge forms in the
salt storage area. It is usually caused by high humid-
ity or the wrong kind of salt. When the salt bridges,
an empty space forms between the water and salt.
Then salt will not dissolve in the water to make brine.
If the brine tank is full of salt, it is hard to tell if you
have a salt bridge. Salt is loose on top, but the bridge
is under it. The following is the best way to check for
a salt bridge.
Salt should be loose all the way to the bottom of the
tank. Take a broom handle, or like tool, and careful-
ly push it down into the salt, working it up and down.
If the tool strikes a hard object (be sure it’s not the
bottom or sides of the tank), it’s most likely a salt
bridge. Carefully break the bridge with the tool. DO
NOT pound on the walls of the tank.
If the wrong kind of salt made the bridge, take it out.
Then fill the tank with nugget or pellet salt only. For
best results, we recommend MortonRClean and
Protect™or Clean and Protect™Plus Rust
Defense™Pellets for use in this water softener.
Broom Handle
push tool into salt
bridge to break
Salt
Salt Bridge
Water Level
Pencil
Mark
1” -- 2”
CLEANINGIRONOUTOFTHEWATERSOFTENER ......................................
Your water softener takes hardness minerals (cal-
cium and magnesium) out of the water. Also, it can
control some (see specifications, page 6) “clear
water” iron. With clear water iron, water from a fau-
cet is clear when first put into a glass. After 15 to 30
minutes, the water begins to cloud or turn rust col-
ored. A water softener WILL NOT remove any iron
that makes the water cloudy or rusty as it comes
from the faucet (called red water iron). To take red
water iron out of water, or over the maximum of clear
water iron, an iron filter or other equipment is need-
ed. Your local dealer has trained people to help you
with iron water problems.
If your water supply has clear water iron, periodic
resin bed cleaning is needed. Clean the bed at least
every six months, or more often if iron appears in the
soft water between treatments. Follow directions on
the resin bed cleaner container.

16 MortonrWater Softener Installation & Operation Manual
GENERAL WATER SOFTENER MAINTENANCE, continued
CLEANING THE NOZZLE AND VENTURI ASSEMBLY .....................................
A clean nozzle and venturi is needed for the soft-
ener to work right. This small unit makes the suc-
tion to move brine from the salt storage area to the
resin tank during regeneration. If the nozzle and
venturi becomes plugged with sand, silt, dirt, etc.,
the softener will not work and you will get hard water.
To get to the nozzle and venturi, remove the softener
top cover. Be sure the softener is in service cycle (no
water pressure at nozzle and venturi). Then, while
holding the nozzle & venturi housing with one hand,
turn off the cap. Lift out the screen support and
screen, then the nozzle and venturi. Wash and rinse
the parts in warm water until clean. If needed, use
a small brush to remove iron or dirt. Also check and
clean the gasket.
NOTE: Models in this manual have a small flow plug
located in the nozzle and venturi, and a small cone
shaped screen in the housing. Be sure to check and
clean these parts.
Carefully replace all parts in the correct order. Lubri-
cate the o-ring seal with silicone grease and place
in position. Install and tighten the cap, by hand only.
Do not over-tighten and break the cap or hous-
ing.
*Install with numbered side
up, concave side down.
Cap
O--ring Seal
Screen Support
Screen
Nozzle & Venturi
Gasket
*Flow Plug
(HVDC)
Nozzle & Venturi
Housing
Screen
IMPORTANT: Be sure small
holes in the gasket are cen-
tered directly over the small
holes in the nozzle & venturi
housing.
*Flow Plug
(DUDC or DDUC)
SERVICE CHECKLIST
NO SOFT WATER
No salt in storage tank: See page 15 to refill, then
start a regeneration, or recharge.
Power supply unplugged at wall outlet, or dis-
connected from electronic control: Reconnect to
electrical power and start a regeneration, or re-
charge.
Fuse blown, circuit breaker popped, or circuit
mistakenly switched off: Check and resolve as
needed. Then, start a regeneration, or recharge.
Plumbing bypass valve(s) in ‘‘bypass’’ position:
Refer to page 8 or 10 and position valve(s) for ‘‘ser-
vice’’ to direct soft water to house pipes. Then, start
a regeneration, or recharge.
Electronic control not programmed: See pages
12 and 13.
Nozzle & venturi dirty, or salt in storage tank
bridged: See page 15 and above to clean. Then,
start a regeneration, or recharge.
WATER INTERMITTENTLY HARD
Possible increase in water hardness: See page
13.
Hot water used when softener is regenerating:
The water heater will refill with hard water.
Leaking faucet or toilet valve: A small leak will
waste hundreds of gallons of water in just a few
days. Fix all water leaks immediately.

PM AM
RECHARGE NOW
Fill
WATER MANAGEMENT SYSTEM
%
CAPACITY
FLOW RATE
WATER MANAGEMENT SYSTEM
GPM
GALLONS TODAY
WATER MANAGEMENT SYSTEM
AVG DAILY GALLONS
WATER MANAGEMENT SYSTEM
MortonrWater Softener Installation & Operation Manual 17
MORTON WATER SOFTENER FEATURES AND SETTINGS
NOTE: SEE PAGES 12 and 13 TO SET THE CORRECT TIME OF DAY AND WATER HARDNESS NUMBER.
NORMALOPERATION,ELECTRONICCONTROLDISPLAY ...............................
During normal operation, the
present time of day, and AM or
PM, show in the time display
area. The demand computer
determines when a regenera-
tion is needed. Then, a
regeneration will begin at the
next regeneration start time
(2:00AM or as you set it).
RECHARGE NOW will flash
until the regeneration is over.
The display will also show the
current cycle in the regenera-
tion process. When the valve is
in transition between cycles,
both indicators flash.
feature: OTHERDATADISPLAYS ..................................................
With repeated presses of the DATA button, you can
scan through four displays of operational informa-
tion. This data appears in the bottom portion of the
display area. These are:
CAPACITY (remaining) -- This is
the percentage of water soften-
ing capacity remaining. Immedi-
ately after a regeneration, 100%
shows. Then, as water is used,
the percentage decreases until
the next regeneration. During
regenerations, the percentage
increments upward.
NOTE: Zero (0%) shows until after the first regen-
eration begins, after connecting to electrical power.
FLOW RATE, GPM* -- When
using soft water, this display
shows the gallon per minute
flow rate passing through the
softener. Zero shows if water is
not in use.
GALLONS*TODAY -- E a c h
day, beginning at midnight, the
electronic control keeps a run-
ning count of the total gallons of
water passing through the soft-
ener.
AVERAGE DAILY GALLONS*
-- The figure displayed is the av-
erage gallons of water used by
the household each day, over
the past seven day period.
*If preferred, you can set the display to show the reading in liters instead of gallons, see page 20. If gallons
today, or average daily gallons exceeds 1999, a (x 10) indicator appears. This means you must multiply the
number shown times 10.
feature: OPTIONAL RECHARGE CONTROLS ............................................
Sometimes, a manually started regeneration (re-
charge) may be desired, or needed. Two examples
are:
... You have used more water than usual (house
guests, extra washing, etc.) and you may run out of
soft water before the next regeneration.
... You did not refill the storage tank with salt before
it was all gone.
Use one of the following features to start a regenera-
tion immediately, or at the next preset regeneration
start time.
continued

18 MortonrWater Softener Installation & Operation Manual
MORTON WATER SOFTENER FEATURES AND SETTINGS, continued
RECHARGE NOW Press and hold in the RECHARGE button until RE-
CHARGE NOW starts to flash in the time display
area. The softener begins an immediate regenera-
tion, and when over in about two hours, you will have
a new supply of soft water. Once started, you cannot
cancel this regeneration.
RECHARGE TONIGHT Touch (do not hold) the RECHARGE button, and
RECHARGE TONIGHT flashes in the time display
area. A regeneration will occur at the next preset re-
generation start time. If you decide to cancel this re-
generation, before it has started, touch the same
button once more.
VACATIONNOTE .............................................................................
The Morton Demand water softener regenerates only while water is used and softening capacity must be re-
stored. For this reason, the softener will not regenerate when you are away from home for extended periods.
feature: PROGRAMMEMORY ..........................................................
If electrical power to the softener is interrupted, the
time display is blank, but the electronic control
keeps correct time for about 24 hours. When power
is restored, you have to reset the present time only
if the display is flashing. All other settings are main-
tained and never require resetting unless a change
is desired.
If the time is flashing after a long power outage, the
softener continues to work as it should to provide
you with soft water. However, regenerations may oc-
cur at the wrong time of day until you reset the elec-
tronic control to the correct time of day, page 12.
setting: REGENERATION (STARTING) TIME, MAXIMUM DAYS BETWEEN REGENERATIONS,
EFFICIENCY MODE, HEAVY DUTY BACKWASH AND 97% FEATURE ......................
NOTE: Each of these settings has a factory set default value. The defaults are: Regeneration start time --
2:00AM; Maximum days between regenerations -- 0 (display shows dY --); Efficiency Mode -- OFF; 97% Fea-
ture -- OFF; Heavy duty backwash -- OFF. The defaults suit most installations. However, depending on water
supply quality, household peak water use hours, etc., adjustment is available to meet specific needs. To make
a change, read and do the following.
continued

AM
RECHARGE
TIME
up
down
RECHARGE
Heavy
Bkwash
RECHARGE
MortonrWater Softener Installation & Operation Manual 19
MORTON WATER SOFTENER FEATURES AND SETTINGS, continued
REGENERATION (START) TIME: At the 2:00AM
regeneration start time, the softener begins regen-
erations at that time. This is a good time in most
households because water is not in use. If a different
time would be better for your needs, do steps 1, 2,
4, 6, 8 and 10 to change the starting hour.
MAXIMUM DAYS BETWEEN REGENERATIONS:
The default setting allows the water softener to con-
trol regeneration frequency based on water usage
readings from the water meter. It provides the most
economical operation. You can set a maximum time
(in days) between regenerations. For example, no
more than 3 days will pass without a regeneration
occurring if you set dY 3 in the display. A 1 to 15 day
setting is available. To make a change from the de-
fault setting, do steps 1, 2, 3, 4, 6, 8 and 10.
EFFICIENCY MODE: When this feature is ON, the
unit will operate at salt efficiencies of 4000 grains of
hardness per pound of salt or higher. (May recharge
more often using smaller salt dosage and less wa-
ter). When this is ON the efficiency icon will show
in the lower right hand corner of the display. To make
a change from the default setting, do steps 1, 2, 4,
5, 6, 8 and 10.
CALIFORNIA EFFICIENCY REQUIREMENT
Your water softener has a “High Efficiency” feature
with an “ON” or “OFF” setting. This softener setting
is shipped in the “OFF” position, which utilizes the
maximum rated capacity while most often achieving
maximum salt efficiencies. When installing this unit
in the State of California, you MUST turn this setting
to the “ON” position which may initiate more
frequent recharges, however it will operate at 4000
grains per pound of salt or higher.
If you wish to turn the Salt Efficiency feature “ON”
(icon will show in display), follow the instructions
on this page.
HEAVY DUTY BACKWASH: When set to ON, the
backwash cycle of regeneration will be 10 minutes
long instead of the normal 7 minute length. This is
beneficial on some water supplies high in iron or
sediment content. To conserve water, on clean sup-
plies, be sure OFF shows. To change this setting, do
steps 1, 2, 4, 6, 7, 8 and 10.
SET 97% FEATURE: By setting to On, unit will auto-
matically recharge when 97% capacity has been
used, at any time of day. To change this setting, do
steps 1, 2, 4, 6, 8, 9 and 10.
1. Beginning from the present
time display, press and hold in
the SELECT button until 2:00
AM begins to flash, RE-
CHARGE TIME remains
steady.
2. Press the up or down button
to display the desired start time.
The up button moves the time
ahead; the down button moves
the time backward. Press the
SELECT button to select time
and move to next setting.
3. dY -- flashes, with RE-
CHARGE remaining steady.
Pressing the up button will in-
crease the number of days, the
down button will decrease the
number of days.
4. Press the SELECT button to select and move to
next setting.
5. On flashes and the efficiency
mode icon shows in the lower
right hand corner of the screen.
Use the up or down buttons to
toggle the efficiency mode ei-
ther ON or OFF.
6. Press the SELECT button to select and move to
next setting.
7. HEAVY BACKWASH and
flashing OFF shows in the dis-
play. Use the up or down but-
tons to toggle the heavy back-
wash either ON or OFF.
8. Press the SELECT button to select and move to
next setting.
9. Display toggles between 97
Recharge and OFF. Use the up
or down buttons to toggle this
setting either ON or OFF.
10. Press the SELECT button to select and return to
the present time display.
E

TIME
GALLONS
LITERS
20 MortonrWater Softener Installation & Operation Manual
MORTON WATER SOFTENER FEATURES AND SETTINGS, continued
setting: MODEL CODE, 12 OR 24 HOUR CLOCK, AND GALLONS OR LITERS MEASURE . . .
NOTE: The model code is factory set at assembly and testing. The hour clock and water measure have factory
set default values. The defaults are: 12 or 24 hour clock -- 12; Gallons or liters measure -- gallons. The model
code should never require resetting, but to check, or to set if previously omitted, read below. The defaults suit
most installations. However, to make a change, read and do the following.
MODEL CODE: The electronic control must have
the right model code set to operate the softener cor-
rectly. The correct model code for model MSD45E
is A 45.
If A---is flashing in the display, do steps 2, 3, 5
and 7.
To check for the correct code setting, and to reset
if needed, do steps 1, 2, 3, 5 and 7.
12 OR 24 HOUR CLOCK: With 12 hr set, all time
displays are in standard clock time, 12:00AM to
11:59PM. If 24 hr is set, time displays are in military
time... 0100 (1:00AM) to 0000 (midnight). To change
from the 12 hr setting, do steps 1, 3, 4, 5, and 7.
GALLONS OR LITERS MEASURE: All water flow
rate and usage displays are in gallons with the de-
fault GALS setting. If reset to litErs, the same dis-
plays are shown in liters. Use steps 1, 3, 5, 6 and 7
to change.
1. Beginning from the present
time display, press and hold in
the SELECT button until 2:00
AM (or as otherwise set), and
RECHARGE TIME begins to
flash.
2. Press and hold in the SE-
LECT button again. Either A --
-- -- or a previously set code will
appear. If setting is needed, use
theupordownbuttontoset
model code, as needed.
3. Press SELECT to select and move to next screen.
4. 12 hr flashes along with
TIME. To change the display to
24 hr, use the up button. Use the
down button to reset to 12 hr.
5. Press SELECT to select and move to next screen.
6. GALS flashes, along with
GALLONS. Use the up button
to change to the liter setting.
Use the down button to return to
the gallon setting.
7. Press the SELECT button a final time to return to
the present time display.
AM
RECHARGE
TIME