NorthStar NSC 11 ED Use and care manual

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AUTOMATICWATERCONDITIONER
Installation
Operation
Maintenance
Repair Parts

NORTHSTARWATERCONDITIONING,POBOX64310,ST.PAUL,MN55164-431 PartNo.7243293Eng Europe(Rev.A10/17/01)
NSC 11/ 14/ 17 ED

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2
WARRANTY
TEN YEAR LIMITED WARRANTY
GENERAL CONDITIONS
Damage to any part of this water conditioner because ofmisuse, misapplication, neglect, alteration, accident, installation or operationcon-
trary to our printed instructions, or damage caused by any unusual force of nature such as, but not limited to, freezing, flood, hurricane,
tornado, or earthquake is not covered by this warranty. In all such cases, regular parts and service charges will apply.
We assume no warranty liability in connection with this water conditioner other than specified herein. This warranty is in lieu of all other
warranties, expressed or implied, including warranties of fitness for a particular purpose. Wedo not authorize any person or representative
to assume for us any other obligations on the sale of this water conditioner.
Should a defect or malfunction occur, contact your contractor. If you are unable to contact your contractor, return the part, freight prepaid,
directly to the factory at the address below. Enclose with the part a full description of the problem, with your name, full address, date pur-
chased, model and serial numbers, and selling contractor’s name and address. We will repair or replace the part and return it to you at no
cost if our repair department determines it to be defective under the terms of the warranty.
This warranty gives you specific legal rights and you may have other rights which vary from state to state.
This water conditioner is manufactured by North Star Water conditioning, PO Box 64310, St.Paul, MN 55164-4310; customer information
telephone no. 1-800-972-0135. WARRANTY POLICY
North Star Water Conditioning, St.Paul, MN, warrants this water conditioner as stated herein:
From the date of installation, within the warranty perioddescribed below, we will repair or replace any part which we find defective because
of faulty materials and workmanship, or corrosion. You pay only freight to our factory and local labor charges.
* ONE YEAR ON COMPLETE UNIT
*THREE YEARS ON ELECTRONIC CONTROL * THREE YEARS ON CONTROL VALVE BODY
* FIVE YEARS ON SALT STORAGE TANK * TEN YEARS ON MINERAL TANK, EXCLUDING MINERAL
SAFETY GUIDES
FOLLOW THE INSTALLATION INSTRUCTIONS CAREFULLY. FAILURE TO INSTALL THE SOFTENER
PROPERLY VOIDS THE WARRANTY.
BEFORE YOUBEGIN INSTALLATION, READTHISENTIRE MANUAL.THEN, OBTAINALL THEMATERI-
ALS 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. FORINSTALLATION,USEPLUMBINGCODE248-CMROFTHECOMMONWEALTHOFMAS-
SACHUSETTS.
USE ONLY LEAD-FREE SOLDER AND FLUX FOR ALL SWEAT-SOLDER CONNECTIONS, AS RE-
QUIRED BY STATE AND FEDERAL CODES.
USE CARE WHEN HANDLING THE SOFTENER. DO NOT TURN UPSIDE DOWN, DROP, OR SET ON
SHARP PROTRUSIONS.
DO NOT LOCATE THE SOFTENER WHERE FREEZING TEMPERATURES OCCUR. DO NOT ATTEMPT
TOTREATWATEROVER49°C.FREEZING,ORHOTWATERDAMAGEVOIDSTHEWARRANTY.
AVOIDINSTALLINGINDIRECTSUNLIGHT.EXCESSIVESUNHEATMAYCAUSEDISTORTIONOROTH-
ER DAMAGE TO NON-METALLIC PARTS.
THESOFTENERREQUIRESAMINIMUMWATERFLOWOF11.35 LITERS PERMINUTEATTHEINLET.
MAXIMUMALLOWABLEINLETWATERPRESSUREIS8.7 Bar.IFDAYTIMEPRESSUREISOVER5.6
Bar,NIGHTTIMEPRESSUREMAYEXCEEDTHEMAXIMUM.USEAPRESSUREREDUCINGVALVEIF
NECESSARY. ( ADDING A PRESSURE REDUCING VALVE MAY REDUCE THE FLOW.)
THESOFTENERWORKSON24VOLT-50HzELECTRICALPOWERONLY.BESURETOUSETHEIN-
CLUDED TRANSFORMER.

R1257+67$5  $8720$7,& :$7(5 &21',7,21(5
3
UNPACKING / INSPECTION
The softener is shipped in one master carton (cabi-
netNSCmodels).
Thesoftenersarecompletelyassembled at the
factory,exceptasrequiredatinstallation.
Besuretochecktheentir²esoftenerforanyshipping
damageorpartsloss. Alsonotedamageto theship-
ping cartons. Contact the transportation company
for all damage and loss claims.The manufactureris
not responsible for damages in transit.
Small parts, needed to install the softener, are on a
skin packed cardboard piece. To avoid loss of the
smallparts,keepthemon theskin packuntilyouare
ready to use them.
TABLE OF CONTENTS
PAGE NO.
WARRANTY, SAFETY GUIDES 2.................................................
SPECIFICATIONS, DIMENSIONS 4...............................................
BEFORE STARTING INSTALLATION 5............................................
TYPICAL INSTALLATION ILLUSTRATION 6........................................
INSTALLATION STEPS 7 - 9.....................................................
PROGRAMMING THE TIMER 10 - 11..............................................
SANITIZING PROCEDURES 12...................................................
WATER AND WATER CONDITIONING 13 - 14......................................
HOW THE WATER SOFTENER WORKS 14 - 15....................................
GENERAL WATER SOFTENER MAINTENANCE 16 - 17.............................
ELECTRONIC DEMAND TIMER FEATURES AND SERVICE
TIMER DISPLAYS / OPTIONAL RECHARGE CONTROLS, PROGRAM
MEMORY, AUTOMATIC ELECTRONIC DIAGNOSTICS 18 - 19.....................
SERVICE CHECKOUT PROCEDURES, WIRING SCHEMATIC 19 - 21..............
WATER FLOW THROUGH VALVE 22 - 23..........................................
REPAIR PARTS 24 - 27..........................................................

R1257+67$5  $8720$7,& :$7(5 &21',7,21(5
4
SPECIFICATIONS / DIMENSIONS
MODEL
11 14 17
5$7('&$3$&,7<See Rating Decal, Located On The Softener
$028172)+,*+&$3$&,7<5(6,18,75 /10,5 11,8 /14 14 /17
5(6,17$1.120,1$/6,=(LQGLD[KHLJKW8x19 8 x24 8 x35
6(59,&()/2:5$7(See Rating Decal
:$7(5 6833/< 0$;,080 +$5'1(66 JSJ➄18 30 41
:$7(5 6833/< 0$; &/($5 :$7(5 ,521 SSP➄4 6 8
:$7(535(6685(/,0,76PLQPD[2-8,6
:$7(57(03(5$785(0$;,08049
:$7(56833/<0,1,080)/2:5$7(11.35
5(*(1(5$7,21&<&/()/2:5$7(6
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➄Determined by water analysis from a qualified water testing
laboratory.
NSCCABINETMODELS
INLET
OUT
INLET - OUTLET
11-1/2”
3-3/8”
A
B39”
18”
INLET
OUT
INLET - OUTLET
29.2 cm
8.57 cm
C
AB
18-1/4”
NST
MODEL A B C
25 48-3/4” 41-1/4” 11”
30 44-3/4” 37-1/4” 11”
40 56-1/2” 49” 11”
IORZ WR
GUDLQ
Kg/ liters
m³/ h
Unit Width Depth Height A Height B 
NSC 11 ED 29 45 66 52.5
NSC 14 ED 29 45 79 66.5
NSC 17 ED 29 45 107 94.7
In cm
Bar)
°C
( l/min )
( l/min )
1.1

RNORTHSTAR ....... AUTOMATIC WATER CONDITIONER
5
BEFORE STARTING INSTALLATION
:+(5( 72 ,167$// 7+( 62)7(1(5
:Place the softener as close as possible to the
pressure tank (well system) or water meter (city
water).
:Placethe softenerascloseaspossibletoafloor
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 120EF
(49EC).
:Keep outside faucets on hard water to save soft
water and salt.
:Do not install the softener in a place where it
could freeze. )UHH]H GDPDJH LV QRW FRYHUHG
E\ WKH ZDUUDQW\
:Putthesoftenerinaplacewaterdamageisleast
likely to occur if a leak develops. The manufac-
turer will not repair or pay for water damage.
:A220 voltelectricoutlet,toplugtheincluded
transformerinto,isneededwithin3 meters ofthe
softener.Thesoftenerhasa3 meters power
cable.Iftheoutletisremote(upto30.5 m),use
0.75 mm² wiretoconnect.%HVXUHWKHHOHFWULF
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: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 will melt plastic parts.
722/6 3,3( DQG ),77,1*6 27+(5 0$7(5,$/6 <28 :,// 1(('
0Inandoutpipestothesoftenermustbeatleast3/4”
size.Somelocalcodesrequireaminimumof1”pipe
size. 7R SOXPE ZLWK µ SLSHV EX\ DGDSWRUV WR ILW WKH
µ SLSH WKUHDGV RQ WKH LQVWDOODWLRQ DGDSWRUV RU E\
SDVV YDOYH VHH SDJH  You should maintain the
same, or larger, pipe size as the water supply pipe,
up to the softener inlet and outlet.
0Use copper, brass, or galvanized pipe and fittings.
Some codes may also allow CPVC plastic pipe.
0ALWAYS install a bypass valve or valves. Either
usetheoptionalvalve (included with somemodels),
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.
0Drain hose (3/8” or 7/16” inside diameter) is need-
ed for valve and salttank drains. You can buygood
quality, thick-wall, flexible hose at most hardware
stores.
0If a rigid valve drain is needed, to comply with
plumbingcodes,youcanbuythepartsneeded(see
page 8) to connect a 1/2 in. copper tubing drain.
0Nugget orpellet water softener salt is needed to fill
the brine tank (see page 9 and 16).
3/$1 +2: <28 :,// ,167$// 7+( 62)7(1(5
You must first decide howto 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
pipesolderedcopper,gluedplastic,orthreadedgal-
vanized ? What is the pipe size?
Now look at the typical installation illustration on
page 6.Use itas a guide when planning yourpartic-
ular installation. Be sure to direct raw, hard water
to the softener valve inlet fitting. The valve is
marked IN and OUT.

RNORTHSTAR ....... AUTOMATIC WATER CONDITIONER
6
TYPICAL INSTALLATION ILLUSTRATION
(BRINE TANK NOT SHOWN)
.
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Optional
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RNORTHSTAR ....... AUTOMATIC WATER CONDITIONER
7
INSTALLATION STEPS
 INSTALL BYPASS VALVE:
NOTE: On Demand
timer models, be
sure the turbine and
support are firmly in
place, in the valve
outlet. Blow into the
valve port and ob-
serve the turbine for
free rotation.
turbine
turbine support & shaft
valve
outlet
(remove
plastic
shipping
plug and
wire)
Push the bypass valve (lubricate o-ring seals)
into both ports of the valve...figures 1A and 1C.
Snap the 2 large plastic clips in place, from the
top, down...figures 1A and 1B. Be sure they snap
intoplace.Pullontheadaptors,or bypassvalve,
to make sure they held securely in place.
 INSTALL THE BRINE TANK OVERFLOW
FITTINGS:
Insertthe rubbergrommet into the 3/4”diameter
hole in the brine tank sidewall...see page 8.
Push the barbed end of the hose adaptor elbow
into the grommet.
 MOVE THE SOFTENER ASSEMBLY
INTOINSTALLATIONPOSITION:
Be sure the installation surface is level and
smooth. If needed, place the tank on a section of
2 cm thick(min.)plywood.Then,placeshimsunder
the plywood as needed to level the softener.
 PLUMB IN AND OUT PIPES TO AND
FROM SOFTENER:
CAUTIONS:Observeallofthefollowingcautionsas
you connect inlet and outlet plumbing.
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
SIDE VIEW END VIEW
CLIP
valve body
inlet or outlet
bypass valve
(push all the way in)
clip
OUTLET
INLET bypass
valve
IN
OUT
Turn bypass valve up-
side down to connect
to floor level plumbing.
If making a soldered copper installation, do all
sweat soldering before connecting pipes to the
softener fittings. Torch heat will damage plastic
parts. continued

drain fitting
on valve
valve drain
hose
TO
floor drain
1/4” NPT threads
barbs
1/2” O.D. copper tube
(not furnished)
clip cut barbs
from drain fitting
compression fitting,
1/4” NPT x 1/2” O.D. tube
(not furnished)
RNORTHSTAR ....... AUTOMATIC WATER CONDITIONER
8
INSTALLATION STEPS, continued
Put grounding clamps (see step 8) on copper
tubes before soldering.
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.
 CONNECT AND RUN THE VALVE DRAIN
HOSE:
Take a length of 3/8”or
7/16”insidediameterhoseand
attach to the valve drain fitting.
So water pressure does not
blow the hose off, use a hose
clamptosecureinplace.
Locate the other end of the
hose at a suitable drain
point...floor drain, sump, laun-
dry tub, etc. Check and com-
ply with local codes.
IMPORTANT: Use high quali-
ty, thick-wall hose that will not
easilykinkorcollapse.7KH ZD
WHU VRIWHQHU ZLOO QRW ZRUN LI ZD
WHU FDQQRW H[LW WKLV KRVH GXULQJ
UHJHQHUDWLRQV
Tieorwire thehoseinplace atthe
drain point. Water pressure will
cause it to whip during the backwash and fast rinse
cyclesof regeneration. Also provide an airgap of at
least4 cm betweentheendofthehoseandthe
drain point. An air gap prevents possible siphoning
ofsewerwater,intothesoftener,ifthesewershould
‘‘back-up’’.
If raising the drain hose overhead is required to
gettothedrainpoint,donotraisehigherthan2,4m
above the floor. Elevating the hose may cause a
back-pressure that could reduce brine draw during
regenerations.
 CONNECT AND RUN THE BRINE TANK
OVERFLOW HOSE (see figure 3):
CONNECTING A RIGID VALVE DRAIN TUBE
To adapt a copper drain tube to the softener,
use a hacksaw to cut the barbed end from the
drainfittingasshown.Buya compressionfitting
(1/4” female pipe thread x 1/2”O.D. tube) and
needed tubing from your local hardware store.
FIGURE 2
Attach a length of 3/8” or 7/16” I.D. hose to the
drain elbow, installed in step 2, page 7. Use a hose
clamptoholditinplace.
Locate the other end of the hose at the drain
point. DO NOT ELEVATE THIS HOSE HIGHER
THAN THE ELBOW ON THE BRINE TANK. DO
NOT TEE THIS HOSE TO THE VALVE DRAIN
HOSE.
NOTE: This drain is for safety only. If the brine tank
should over-fill with water, the excess is carried to
the drain.
ON2TANKMODELS,CONNECTBRINE
TUBING:
Routethebrinetubingout,throughthelargest
holeinthebrinetanksidewall.Connectthetubing
tothenozzlehousing,asshowninfigure3,usinga
nut-ferrule.Tightenthenut,byhandonly.
FIGURE3hose
adaptor
over-
flow
drain
hose
grommet
to floor
drain
nut-ferrule
brine
valve tubing
nozzle/venturi
brinewell

RNORTHSTAR ....... AUTOMATIC WATER CONDITIONER
9
INSTALLATION STEPS, continued
INSTALLGROUNDINGCLAMPSAND
WIRE (IF NEEDED):
To maintain electrical ground continuity in the
house cold waterpiping, install the included ground
clamps as shown. Be sure the pipes are clean, un-
der the clamps, to assure good contact.
NOTE: A 3-valve bypass system maintains ground
continuity.
FIGURE 4 ground wire
inlet - outlet
pipes
hose clamp
ground (2)
 FLUSH PIPES, EXPEL AIR FROM SOFT-
ENER,ANDTESTYOURINSTALLATIONFOR
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 into BYPASS. On a
3-valve system, close the inlet and outlet valves,
and open the bypass valve...see page 6.
C. Fully open the house main water pipe shutoff
valve. Observea steadyflow fromboth opened fau-
cets.
D. Place bypass valve(s) in ‘‘service”, EXACTLY
as follows. KEEP SOFT WATER FAUCETS OPEN.
1. SINGLE BYPASS VALVE: SLOWLY, slide the
valve stem toward ‘‘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 +27 water
faucetforoneminute,oruntilallairisexpelled,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.
 ADDWATERANDSALT TO THEBRINE
TANK:
Remove the salt storage area cover. Add about
11 liters ofwaterintothetank.DONOTADDINTO
THE BRINEWELL.
*Fill the tank with NUGGET, PELLET or coarse
SOLARwatersoftenersalt.Do not use rock, block,
granulated,andicecreammaking salts,orsaltwith
ironremovingadditives.Alsoseepage17.6DOW
VWRUDJHFDSDFLW\variesbymodel
*Note: If the softener is installed in a humid base-
ment or other damp area, it is better to fill the tank
more often using less salt (see salt bridging in the
maintenancesection).40 to 50 Kg ofsaltwill
last for several months, depending on water hard-
ness, family size, and model of softener.
 CONNECT TO ELECTRICAL POWER:
Thesoftenerworkson24volt,50Hzelectricpow-
er.Theincludedtransformerchangesstandard220
volt AC house power to 24 volts. Plug the trans-
formerintoa220voltoutletonly.Besuretheout-
let is always ‘‘live’’ so it can not be switched off by
mistake.
Fastenthe2powercabletothe2power cables onthe
transformer.Then,plugthe transformer in to the elec-
tricaloutlet.
 PROGRAM THE TIMER:
ELECTRONIC DEMAND TIMER...see pages 10
and 11.
7.
8.
9.
11.
10.

RNORTHSTAR ...... AUTOMATIC WATER CONDITIONER
10
PROGRAMMING THE ELECTRONIC DEMAND TIMER
Recharge Tonight
WATER C NDITIONERO
1RUWK 6WDU 9
up button
display
(/(&7521,&
'(0$1'
SELECT
TOUCH
HOLD Recharge Now SELECT button
down button
TOUCH-HOLD button
TIMERSETTINGSREQUIRED...uponinstallation,andafteranextendedpoweroutage(seePro-
gram Memory, page 18).
NOTES:
-WHENTHETRANSFORMERISPLUGGEDINTOTHEELECTRICALOUTLET(STEP10,PAGE9),
12:00(flashing),andPRESENTTIMEshowinthedisplayarea.Programthetimerasinstructedbelow.
,I 65   LV IODVKLQJuse the UP buttontosetthecorrectSRcodeasfollows:65forNSC25Dand
;65forNST30Dmodels;and65forNST40Dmodels.Ifyoupassbythecorrectcode
number, use the DOWN button. Then, press the SELECT button and program the timer below. ...,I WKH
ZURQJ 65 FRGH VKRZV IRU \RXU PRGHO see Manual Initiated Electronic Diagnostics on pages 19 and 20.
-A‘‘beeper’’ sounds while pressing buttons for timer programming. One beep signals a change in thetimer
display. Repeated beeps means the timer will not accept a change from the button you have pressed, and
you should use another button.
-To set the timer, you will use the UP ,DOWN and SELECT buttons.
6(7 35(6(17 7,0( 2) '$<
NOTE: If the words PRESENT TIME do not show in the display, press the SELECT button until they do.
1. Press the UP or DOWN button to set. The UP
button moves the display ahead; the DOWN
movesthetimebackward.....................................
NOTE: Each press of the buttons changes the
time by one minute. Holding the buttons in
changes the time 32 minutes each second.
2. When the present time shows, press SELECT
to set.
Ifthepresenttimeisbetweennoonand
midnight, be sure PM shows.
If the present time is between midnight
and noon, be sure AM shows.
TIMER SETTINGS CONTINUED, NEXT PAGE
.
.
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.
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NSC11ED
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SR17
NSC17ED

RNORTHSTAR ...... AUTOMATIC WATER CONDITIONER
11
PROGRAMMING THE ELECTRONIC DEMAND TIMER, continued
6(7 :$7(5 +$5'1(66 180%(5
NOTE: If 25 (factory default) and HARDNESS do not show in the display, press SELECT until they do.
1.Pressthe UP orDOWN button to set yourwater
hardnessnumberinthedisplay.DOWNmovesthe
displaydownto1.UPmovesthedisplayupto50
NOTE:Eachpressofabuttonchangesthedisplay
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 sec-
ond.Seethespecifiedmaximumhardness,page
4.
2. When your water hardness number shows,
press SELECT to set.
+$5'1(66
You can get the grains per gallon (gpg) hardnessof
your water supply from a water analysis laboratory,
or call and ask your local water department, if you
areonamunicipalsupply.Ifwatercontainsiron,add
to the waterhardness at a ratio of 5 grains for each
1ppmofiron. ( 1 gpg = 0,959 °d)
6(7 5(*(1(5$7,21 67$57,1* 7,0(
NOTE:RECHARGETIMEandaflashing2:00(factorydefault)shouldshowinthedisplay.Thisisagood
time for regeneration to start (over in about 2 hours) in most householdsbecause water is not in use. HARD
WATER is bypassed to house faucets during regeneration. ... See Automatic Bypass on page 14.
If no change is needed, go to step 2 following. 7R FKDQJH this time, if desired, GR VWHS 
1.PresstheUPorDOWNbuttontosetthedesired
regenerationstarttime. ....................................... ..
$0
7,0(
5(&+$5*(
NOTE:Eachpressofthebuttonschangesthetime
by one hour. Holding the buttons in changes the
time twice each second.
2.Press the SELECT button once more. ............
Be sureto observe theAMor PM, as you didwhen
setting the time of day.
The display shows the present time of
day and RECHARGE TONIGHT.
The special IHDWXUHV of your timer are explained on page 18.
TO COMPLETE THE INSTALLATION, GO TO THE SANITIZING
PROCEDURES ON PAGE 12.
..
5(&+$5*( 721,*+7
30

RNORTHSTAR ...... AUTOMATIC WATER CONDITIONER
12
SANITIZING PROCEDURES
Care is taken at the factory to keep your water soft-
enerclean andsanitary.Materialsusedto makethe
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 suggested➀
when installing.
1. Be sure to complete allinstallation steps, includ-
ing timer programming.
2.Pourabout21 gr ofcommon5.25%household
bleach (Clorox, Linco, Bo Peep, White Sail, Eagle,
etc.,) into the brinewell (figure 3, page 8).
3.Use the REGENERATE, ORRECHARGE, NOW
feature, on the timer, to start an immediate regen-
eration. The bleach is drawn into and through the
water softener to sanitize it. This sanitizing regen-
eration is over in about 2 hours. Then, soft water is
available for your use.
➀NOTE: Sanitizing is recommendedby thewater QualityAsso-
ciation for disinfecting. On some water supplies, they suggest
periodic sanitizing.
NOTE:Whentheabovesanitizingregenerationisover,yourhouseCOLDwatersupplyisfully
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 totallysoft water immediately,
after the above regeneration, drain the water heater until the water runs cold. If you do drain
the water heater, XVH H[WUHPH FDUH DV WKH ZDWHU FRXOG FDXVH VHYHUH EXUQV

RNORTHSTAR ...... AUTOMATIC WATER CONDITIONER
13
WATER AND WATER CONDITIONING
:$7(5 
Man’s very existence depends on water. It is one of
thebasiccommoditiesoflife.Waterisbestasnature
provides it, is a common misconception. Practically
all natural water needs refinement or treatment to
make it safe to drink or more satisfactory to use.
The earth’s water supply cycle starts in the upper
cloud layers. As it falls to the earth as rain or snow,
it picks up impurities and gases from the atmo-
sphere.Landingonearth,itseepsoverandthrough
the ground, dissolving earth minerals. Passing
through limestone, it dissolves calcium and magne-
sium, the hardness minerals. Iron deposits impart
iron to the water. Acidity and sediments are other
water conditions.
Municipal water supplies come from surface reser-
voirs,suchaslakesandrivers,orfromunderground
reservoirs.Usually,municipalitieschlorinatethewa-
ter to make it safe to drink. Sediment is removed by
filtration. Tastes and odors are reduced or elimi-
nated. The water is conditioned to comply with cer-
tain specifications. However, hardness minerals,
tastesandodorsarenotalwaysreducedtothemost
desirable levels.
Underground reservoirs provide our private water
supplies. Because the water is raw and untreated,
it can have varying amounts of hardness, iron,
tastes, odors, acidity, or combinationsof these.Dif-
ferent localities and water levels affect mineral con-
tent.
:$7(5&21',7,21,1*
Water conditioning is the treatment of four general
conditions. These are: +DUGQHVV,,URQ,$FLGLW\,
6HGLPHQWV.
+$5'1(66 is a term to describe the presence of
calciumandmagnesiummineralsinwater.Achemi-
cal analysis accurately measures the amount of
mineralsingrainweight.Forexample,onegallon*of
waterwithfivegrainspergallon(gpg)*hardnesshas
dissolved minerals, that if solidified, about equals
thesizeofoneordinaryaspirintablet.Onegallon*of
water,25gpg*hard,hasamineralcontentequalin
size to five aspirin tablets. Water hardness varies
greatlyacrossthecountry.Itgenerallycontainsfrom
3to100gpg*.*1 gallon = 3,78 liters; 1gpg = 17,15 PPM = 0 °d
Hard water affects living in general. Hardness min-
erals combine with soap to make a soap curd. The
curd greatly reduces the cleaning action of soap.
Precipitated hardness minerals form a crust on
cooking utensils,appliances,andplumbingfixtures.
Even the tastes of foods are affected. A water soft-
ener removes the hardness minerals to eliminate
these problems, and others.
Sodium Information: Water softeners using sodium
chloride (salt) for regeneration add sodium to the
water. Persons on sodium restricted diets should
considertheaddedsodiumaspartoftheiroverallin-
take.
,521 in water is measured in parts per million
(ppm). The total* ppm of iron, and type or types*, is
determined by chemical analysis. Four different
typesofiron in waterare: oFerrous (clear water),
wFerric (red water), pBacterial and organically
bound iron, qColloidal and inorganically bound
iron (ferrous or ferric).
*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.
oFerrous(clearwater)ironissolubleanddissolves
in water. It is usually detected by taking a sample of
waterinaclearbottleorglass.Immediatelyaftertak-
ing,thesampleisclear.Asthewatersamplestands,
itgraduallycloudsandturnsslightlyyelloworbrown
as air oxidizes the iron. This usually occurs in 15 to
30 minutes. A water softener will remove moderate
amounts of this type of iron (see specifications).
wFerric(redwater),andpBacterialandorganical-
ly bound irons are insoluble. This iron is visible im-
mediately when drawn from a faucet because it has
oxidized before reaching the home. It appears as
small cloudy yellow, orange, or reddish suspended
particles. Afterthe waterstands fora period of time,
the particles settle to the bottom of the container.
Generally these irons are removed from water by
filtration. Chlorination is alsorecommended forbac-
terial iron.
qColloidal and inorganically bound iron is of ferric
or ferrous form that will not filter or exchange out of
continued
*1 gallon = 3,78 liters; 1gpg = 17,15 PPM = 0,959 °d

RNORTHSTAR ...... AUTOMATIC WATER CONDITIONER
14
WATER AND WATER CONDITIONING, continued
water. In some instances, treatment may improve
colloidalironwater,butalwaysCONSULTAQUALI-
FIED WATER CHEMISTRY LAB before attempting
to treat it. Colloidal iron water usually has a yellow
appearance whendrawn. Afterstanding forseveral
hours,thecolorpersistsandtheirondoesnotsettle,
but remains suspended in the water.
Ironinwatercausesstainsonclothingandplumbing
fixtures.Itnegativelyaffectsthetasteoffood, drink-
ing water, and other beverages.
$&,',7< oracidwateriscausedbycarbondioxide,
hydrogen sulfide, and sometimes industrialwastes.
It is corrosive to plumbing, plumbing fixtures, water
heaters, and other water using appliances. In can
also damage and cause premature failure of seals,
diaphragms, etc., in water handling equipment.
A chemical analysis is needed to measure the de-
greeofacidityinwater.ThisiscalledthepHofwater.
Water testing below 6.9 pH is acidic. The lower the
pH reading, the greater the acidity. A neutralizer fil-
ter or a chemical feed pump are usually recom-
mended to treat acid water.
6(',0(17 is fine, foreign material particles sus-
pended in water. This material is most often clay or
silt. Extreme amounts of sediment may give the wa-
ter a cloudy appearance. A sediment filter normally
corrects this condition.
HOW THE WATER SOFTENER WORKS
62)7 :$7(5 6(59,&( $1' 5(*(1(5$7,21 VHH LOOXVWUDWLRQV SDJH 
SERVICE
Whenthe softener is providing soft water,it is called
“Service”. During service, hard waterflows fromthe
house main water pipe into the softener. Inside the
softener resin tank is a bed made up of thousands
of tiny, plastic resin beads. As hard water passes
through the bed, each bead attracts and holds the
hardness minerals. This is called ion-exchanging. It
ismuchlikea magnetattractingand holdingmetals.
Water without the hardness minerals (soft water)
flows from the softener and to the house pipes.
After a period of time, the resin beads hold all of the
hardness minerals they can and cleaning is needed
to remove them. This cleaning is called regenera-
tion, or recharge. The demand timer automatically
determines when regenerations occur. The solid
state timer is programmed for regeneration days.
Regenerationisstartedat2:00h(factorysetting)
by the softener timer, and consists of five stagesor
cycles. These are: FILL, BRINING, BRINE RINSE,
BACKWASH, and FAST RINSE.
REGENERATION
-),// Salt,dissolvedinwater,iscalledbrine.Brine
is needed to clean the hardness minerals from the
resin beads. To make the brine, water flows into the
salt storage area during the fill stage as shown on
page 15.
-%5,1,1* During brining, brine travels from the
salt storage area, into the resin tank. Brine is the
cleaningagentneededtoremovethehardnessmin-
erals from the resin beads. The hardnessminerals,
and brine are discharged to the drain.
The nozzle and venturicreatea suctionto movethe
brine, maintaining a very slow rate to get the best
resin cleaning with the least salt.
-%5,1( 5,16( After a pre-measured amount of
brine is used, the brine valve closes. Water contin-
ues to flow in the same path as during brining, ex-
cept for the discontinued brine flow. Hardness min-
eralsandbrineflushfromtheresintank,tothedrain.
-%$&.:$6+ During backwash, water travels XS
throughtheresin tankatafastflowrate,flushingac-
cumulated iron, dirt, and sediments from the resin
bed and to the drain.
-)$67 5,16( Backwash is followed by a fast flow
of water GRZQ through the resin tank. The fast flow
flushesbrinefromthebottomofthe tank,and packs
the resin bed.
After fast rinse, the softener returns to soft water
service.
$8720$7,& +$5' :$7(5 %<3$66 '85,1* 5(*(1(5$7,21 
For emergency needs, hard water is available to
the home during the regeneration cycles.However, you should avoid usingHOTwaterbecause thewa- ter heater will refill with the hard water.

RNORTHSTAR ...... AUTOMATIC WATER CONDITIONER
15
WATER FLOW THROUGH SOFTENER
SOFT WATERSERVICE FILL
BRINING / BRINE RINSE BACKWASH FAST RINSE
hard water
IN
soft water
OUT
resin tank
brine valve
salt storage
tank (salt
not shown)
resin bed
hard water
IN
soft water
OUT
brine valve
salt storage
tank
hard water
IN
hard water
bypass OUT
brine valve
drain
nozzle &
venturi
brine
fill water
hard water
IN
hard water
bypass OUT
drain
resin bed lifted
and expanded
soft water
OUT
drain
hard water
IN

RNORTHSTAR ...... AUTOMATIC WATER CONDITIONER
16
GENERAL WATER SOFTENER MAINTENANCE
&+(&.,1*7+(6$/76725$*(/(9(/$1'5(),//,1* 
Brine (salt dissolved in water) is needed for each
and every regeneration. The water for making brine
ismetered into the salt storage area by the softener
valve and timer. However, you must keep the tank
full of salt. In humid areas, it is best to fill with less
salt, more often.
NOTE: In humid areas, it is best to fillwith less salt,
more often.
:+(1 72 5(),// :,7+ 6$/7 &KHFN WKH VDOW OHYHO
D IHZ ZHHNV DIWHU \RX LQVWDOO WKH VRIWHQHU DQG HYHU\
ZHHN DIWHU WKDW 5HILOO ZKHQ WKH EULQH WDQN LV IURP 
WR  IXOO 1HYHU DOORZ WKH VRIWHQHU WR XVH DOO WKH VDOW
EHIRUH \RX UHILOO LW :LWKRXW VDOW \RX ZLOO VRRQ KDYH
KDUG ZDWHU
Use clean water softener salts only, at least 99.5%
pure. NUGGET, PELLET or coarse SOLAR salts
are recommended. Do not use rock, block, granu-
lated, and ice cream making salts. They contain dirt
and sediments, or mush and cake, and will create
maintenance problems.
NOTE: WATER SOFTENING SALT WITH IRON
REMOVING ADDITIVES: Some salts have anad-
ditive to help the softener handle iron in the water
supply.Althoughthisadditivemayhelptokeepthe
softener resin clean, it may also release corrosive
fumes that weaken and shorten the life of some
softener parts.
%5($.,1*$6$/7%5,'*( 
Sometimes, a hard crust or salt bridge forms in the
saltstoragearea.Itisusuallycausedbyhighhumid-
ity or the wrong kind of salt. When the salt bridges,
an empty space forms between the water and salt.
Thensaltwillnotdissolve inthewatertomakebrine.
If the brine tank is full of salt, it is hard to tell if you
haveasaltbridge.Saltislooseontop,butthebridge
is underit. The followingis thebest way to checkfor
a salt bridge.
Salt should be loose allthe way to the bottom of the
tank.Takeabroomhandle,orliketool,andcareful-
ly pushitdownintothesalt,workingitupanddown.
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.
Broom Handle
push tool into salt
bridge to break
Salt
Salt Bridge
Water Level
Pencil
Mark
2,5 - 5 cm
&/($1,1*,5212872)7+(:$7(562)7(1(5 
Your water softener takes hardness minerals (cal-
cium and magnesium) out of the water. Also, it can
control some (see specifications, page 4)“clearwa-
ter” iron. With clear water iron, water from a faucet
isclearwhenfirstput intoaglass.After15to30min-
utes, the water begins to cloud or turn rust colored.
A water softener WILL NOT remove any iron that
makesthewatercloudyorrustyasitcomesfromthe
faucet (called red water iron). To take red wateriron
out of water, or over the maximum of clear water
iron,anironfilterorotherequipmentisneeded.Your
local dealer has trained people to help you with iron
water problems.
If your water supply has clear water iron, periodic
resinbedcleaningisneeded. Cleanthebed atleast
everysixmonths,ormoreoftenifiron appearsinthe
soft waterbetween treatments. Follow directionson
the resin bed cleaner container.

RNORTHSTAR ...... AUTOMATIC WATER CONDITIONER
17
GENERAL WATER SOFTENER MAINTENANCE, continued
&/($1,1* 7+( 12==/( $1' 9(1785, $66(0%/< 
Acleannozzleandventuriis neededforthesoft-
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 it becomes
pluggedwith sand,silt,dirt,etc.,thesoftenerwillnot
work and you will get hard water.
To get to the nozzle and venturi,remove the soften-
er 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:Somemodelshaveasmallflowpluglocated
in the nozzle and venturi, and/or a small cone
shapedscreen inthehousing.Besureto checkand
clean these parts, if your model is so equipped.
Carefullyreplaceallpartsinthecorrectorder.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 HOUSING.
*INSTALL WITH NUMBERED SIDE
UP CONCAVE SIDE DOWN. See
identification chart on page 30.
Cap
O-ring Seal
Screen Support
Screen
Nozzle & Venturi
Gasket
*Flow Plug
(HVDC)
Nozzle & Ventu-
ri
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
(1-EP)
SERVICE CHECKLIST
NO SOFT WATER WATER INTERMITTENTLY HARD
No salt in storage tank: See page 16 to refill, then
start a regeneration, or recharge.
Transformer unplugged at wall outlet, or power
cable disconnected: Reconnect to electrical pow-
er and start a regeneration, or recharge.
Fuse blown, circuit breaker popped, or circuit
mistakenly switched off: Check and resolve as
needed. Then, start a regeneration, or recharge.
Plumbingbypass valve(s)in ‘‘bypass’’position:
Refer to page 6 and position valve(s) as needed to
directsoftwatertohousepipes.Then,startaregen-
eration, or recharge.
Timernotprogrammed:
See ElectronicDemandTimer-page10.
Nozzle & venturi dirty, or salt in storage tank
bridged: See page 16, and above to clean. Then,
start a regeneration, or recharge.
Possible increase in water hardness: See....
Electronic Demand Timer - page 11.
Hot water used when softener is regenerating:
The waterheater willrefill with hard water... see Au-
tomatic Hard Water Bypass During Regenerations,
page 14.
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.

RNORTHSTAR ...... AUTOMATIC WATER CONDITIONER
18
ELECTRONIC DEMAND TIMER FEATURES, AND SERVICE
NOTE: SEE PAGE 10 TO SET THE TIMER TO THE CORRECT TIME OF DAY, WATER HARDNESS NUM-
BER, AND RECHARGE START TIME.
1250$/23(5$7,217,0(5',63/$<6 
Duringnormaloperation,thepres-
enttimeofday, (24 hour mode)
show in the time display area.
When the demand computer de-
termines a regeneration is needed, RECHARGE
TONIGHT begins to flash in the display, along with
the present time. RECHARGE
TONIGHT flashes until the next
regeneration start time, then
changes to RECHARGE NOW,
which flashes until the regeneration is over.
feature: 237,21$/ 5(&+$5*( &21752/6 
Sometimes, a manually started regeneration (recharge) may be desired, or needed. Two examples are:
...Youhaveusedmorewaterthanusual(houseguests,extrawashing,etc.)andyoumayrunoutofsoftwater
before the next regeneration.
... You did not refill the storage tank with salt before it was all gone.
Use one ofthe following featuresto start a regeneration immediately, or at the next preset regeneration start
time.
RECHARGE NOW
Press and KROG in the TOUCH - HOLD button until
RECHARGE NOW starts to flash in the time display
area. The softener begins an immediate regenera-
tion,andwhenoverinabouttwohours,youwillhave
anewsupplyofsoftwater.Oncestarted,youcannot
cancel this regeneration.
RECHARGE TONIGHT
Touch(donot hold)the TOUCH-HOLDbutton,and
RECHARGE TONIGHT flashes in the time display
area.A regeneration willoccurat the next preset re-
generation starttime.Ifyou decidetocancelthisre-
generation, touch the same button once more.
9$&$7,21127( 
North Star Demand water softeners regenerate 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 homefor extendedperiods.
feature: 352*5$00(025< 
If electrical power to the softener is interrupted, the
time display is blank, but the timer keeps correct
time for about6 hours.When poweris restored,you
have to reset the present time only if the display is
flashing.Allothersettingsaremaintainedandnev-
errequireresettingunlessachangeisdesired.
If the time LV flashing after a long power outage, the
softener continues to work as it should to provide
you with soft water. However, regenerations may
occuratthewrongtimeofdayuntilyouresetthetim-
er to the correct time of day, page 10.
features:12-24 hour clock / Set Backwash and Fast rins time / Max days between recharge.
Press and hold the SELECT button for 3 seconds:
The Turbine count/ switch position display is shown
(See page 20). Press the SELECT button again, the
recharge ( max days between) is shown. The default
is Automatic (the algorithim will determine when to
recharge). Use the UP/DOWN buttons to change
between 1 and 7 days. With this setting the unit will
never go past number of days set for a recharge, but
could recharge before. Press the SELECT button,
12-24 hour clock is displayed. Use the UP/DOWN
buttons to chose between 12 hour (AM&PM)
hour format. Press the SELECT button again and the
..
30
..
5(&+$5*( 721,*+7
30
5(&+$5*( 12:
..
30
..
5(&+$5*( 721,*+7
30
, or 24
BACKWASH ( b) will be displayed ( in min). Press the 
SELECT button again and the FAST RINSE (r) (in min) will 
be displayed.Use the UP/Down buttons to change the times. 
Press the SELECT button again to retun to the time display.

RNORTHSTAR ...... AUTOMATIC WATER CONDITIONER
19
ELECTRONIC DEMAND TIMER FEATURES, AND SERVICE, continued
feature / service: $8720$7,&(/(&7521,&',$*1267,&6 
The timer computer has a self-diagnostic function
for the electrical system (except input power and
water meter). The computer monitors the electronic
components and circuits for correct operation. If a
malfunction occurs, an error code appears in the
timer display.
The following chart (below) shows the error codes
that could appear, and possible defects for each
code. While an error codeis displayed,all timer but-
tons are inoperable except for the SELECT button.
SELECT remains operational so
the service person can make the
Manual Initiated Electronic Diag-
nostics to further isolate the de-
fect, and check the water meter.
ERROR CODE DISPLAYED
Err 01 Err 02 Err 03 Err 04 Err 05
POSSIBLE
DEFECT
 wiring harness, or connection to switch  position switch  motor inoperative
 valve defect causing high torque
 timer (PWA)
D
E
F
E
C
T
TO REMOVE AN ERROR CODE:
(
1
)
unplu
g
transformer
(
2
)
correct defect
(
3
)
plu
g
transformer in
(
4
)
T
O
R
E
M
O
V
E
A
N
E
R
R
O
R
C
O
D
E
:
(
1
)
u
n
l
u
g
t
r
a
n
s
f
o
r
m
e
r
(
2
)
c
o
r
r
e
c
t
d
e
f
e
c
t
(
3
)
l
u
g
t
r
a
n
s
f
o
r
m
e
r
i
n
(
4
)
Wait for at least 6 minutes. The error code will return if the reason for the error code was not corrected.
service: 7,0(5  62)7(1(5 6(59,&( &+(&.287 352&('85( 
If you are not getting soft water, and an error code
is not displayed, use the procedures below to find
theproblem.First,makethefollowingvisualchecks.
VISUAL CHECKS: (1) Is there electrical power to
the outlet the softener transformer is plugged into?
(2)Istheresaltinthestoragetank? (3)Istheplumb-
ing bypass valve(s) directing water for soft water
service? -VHHSDJH- (4) Is the valve drain hose
open to the drain, not elevated too high, and unob-
structed?Ifyou do notfinda problemwith the visual
checks, continue below.
NO SOFT WATER
7,0(5 6+2:6 :521* 7,0(
$1' '$< $1'25 ,6 )/$6+,1*
(OHFWULFDO SRZHU ZDV RII 5H
VHW WKH FRUUHFW WLPH RI GD\ ,QYHVWLJDWH UHDVRQ IRU SRZHU ORVV %H VXUH RXWOHW IRU VRIWHQHU
FDQQRW EH VZLWFKHG RII
7,0(5 ',63/$< %/$1. &KHFN HOHFWULFDO SRZHU WRWLPHU
RXWOHW WUDQVIRUPHU SRZHU
FDEOH DOO FRQQHFWLRQV
12 32:(5
32:(5 2.$<
REPAIR AS
NEEDED
TIMER
DEFECTIVE
7,0(5 ',63/$< 6+2:6 &255(&7
7,0( $1' '$< $1' ,6 67($'<
Do manual
diagnostics
'R PDQXDO GLDJ
QRVWLFV WR YHULI\
SURSHU IXQFWLRQ

&2'(
RNORTHSTAR ...... AUTOMATIC WATER CONDITIONER
20
ELECTRONIC DEMAND TIMER FEATURES, AND SERVICE, continued
service: 0$18$/ ,1,7,$7(' (/(&7521,&6 ',$*1267,& 
1.Toenterdiagnostics,pressandholdtheSELECT
button until (000 - -) shows in the display.
(A)The first 3 digits indicate water meter operation
as follows:
000 (steady) = soft water not in use¡no flow
through the meter.
— OPEN A NEARBY SOFT WATER FAUCET —
000 to 199 (continual) = repeats display for each
gallon of water passing through the meter.
If you don’t get a reading in the display, with faucet
open,pullthesensorfromthevalveoutletport.Pass
a small magnet back and forth in front of the sensor.
You should get a reading in the display. If you geta
reading, unhook the in and outplumbing and check
the turbine for binding.
(B) The letter (P) and dash(es) indicate POSITION
switch operation. The letter appearing means the
switchisclosed;thedashmeanstheswitchisopen.
Use the TOUCH - HOLD (Recharge Tonight - Now)
button to manually advance the valve into each
cycle and check correct switch operation.
CORRECT
SWITCH
DISPLAYS VALVE CYCLE STATUS
-- Valve in service, fill, brining,
backwash or fast rinse position.
-PValve rotating from one position
to another.
C. While in this diagnostic screen, the following in-
formationisavailableandmaybebeneficialforvari-
ous reasons. This information is retained by the
computer from the first time electrical power is ap-
plied to the face plate.
¡Press the UP button to display the number of
days this face plate has had electrical power ap-
plied.
¡Press the DOWN button to display the num-
berofregenerationsinitiatedbythisfaceplatesince
the SR code number was entered.
2. Press the SELECT button and
KROG in 3 seconds until a Service
Ratingcodeappearsinthedisplay.
For correct softener operation, the SR number
must match the model as follows.
SR11 NSC 11 ED
SR14 NSC 14 ED
SR17 NSC 17 ED
To reset the code, press the UP or DOWN button
until the correct number shows.
3.PressSELECT to return the present timedisplay.
Ifthe codewaschanged,makeALLthetimerset-
tings, pages 10 and 11.
NOTE: If the face plate is left in a diagnostic display (or a flashing
display whensetting timesor hardness),present time automatically
returns if a button is not pressed within 4 minutes.
11