Page 1
Model NSC42
Designed, Engineered &
Assembled in the U.S.A.
How to install, operate
and maintain your Demand
Controlled Water Softener
If you have any questions or concerns when
installing, operating or maintaining your
water softener, contact us at:
info@northstarwater.com
or visit www.northstarwater.com
System tested and certified by NSF International
against NSF/ANSI Standard 44
for hardness reduction and efficiency,
and certified to NSF/ANSI Standard 372.
System tested and certified by the
Water Quality Association against CSA B483.1.
Manufactured and warranted by
North Star Water Treatment Systems
1890 Woodlane Drive
Woodbury, MN 55125
Installation and Operation Manual
7371127 (Rev. B 9/1/18)
Page 2
TABLE OF CONTENTS
Page
pecifications & Performance Claims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
S
Inspect Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ater Conditioning Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
W
Installation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
nstallation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
I
Programming the Water Softener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-13
Controller Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-17
Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-19
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-22
Wiring Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Exploded View & Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-27
WATER SOFTENER WARRANTY
Warrantor: North Star Water Treatment Systems, 1890 Woodlane Drive, Woodbury, MN 55125
Warrantor guarantees, to the original owner, that:
One Year Full Warranty:
● For a period of one (1) year from the date of purchase, all parts will be free from defects in materials and workmanship and will perform their normal functions.
Limited Warranties:
● For 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.
● For a period of three (3) years from the date of purchase, the electronic control board and valve body will be free of
defects in materials and workmanship and will perform their normal functions.
If, during such respective period, a part proves to be defective, Warrantor will ship a replacement part directly to your
home, without charge.
General Provisions
Damage to any part of this water softener because of misuse, misapplication, neglect, alteration, accident, installation or
operation contrary 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 softener other than specified herein. This warranty is in lieu
of all other warranties, expressed or implied, including warranties of fitness for a particular purpose. We do not authorize
any person or representative to assume for us any other obligations on the sale of this water softener.
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 purchased, 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 softener is manufactured by
North Star Water Treatment Systems, 1890 Woodlane Drive, Woodbury, MN 55125
Questions? Contact us at: info@northstarwater.com
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Specifications & Performance Claims
This model is efficiency rated. The efficiency rating is valid only at the minimum salt dose. This system has a
demand initiated regeneration (D.I.R.) feature that complies with specific performance specifications intended to min-
mize the amount of regenerant brine and water used in their operation.
i
his water softener has a rated softener efficiency of not less than 3,350 grains of total hardness exchange per
T
pound of salt (based on sodium chloride) and shall not deliver more salt than its listed rating or be operated at a
ustained maximum service flow rate greater than its listed rating. This system has been proven to deliver soft
s
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 NSC42
Model Code nS42
12,400 @ 2.5 lbs.
Rated Softening Capacity (Grains @ Salt Dose)
Rated Efficiency (Grains/Pound of Salt @ Minimum Salt Dose) 4,940 @ 2.5 lbs.
Water Used During Regeneration @ Minimum Salt Dose 2.5 gallons / 1,000 grains
Total Water Used Per Regeneration @ Maximum Salt Dose 45.9 gallons
Rated Service Flow Rate 9.9 gpm
Amount of High Capacity Ion Exchange Resin 1.20 cu. ft.
Pressure Drop at Rated Service Flow 11.9 psig
Intermittent Flow Rate @ 15 psi* 11.5 gpm
Water Supply Max. Hardness 120 gpg
Water Supply Max. Clear Water Iron 11 ppm**
Water Pressure Limits (min. / max.) 20 - 125 PSI (138 - 862 kPa)***
Water Temperature Limits (min. / max.) 40 - 120 °F (5 - 49 °C)
Minimum Water Supply Flow Rate 3 gpm (11.4 lpm)
Maximum Drain Flow Rate 2.0 gpm (7.6 lpm)
33,300 @ 9.5 lbs.
42,100 @ 16.3 lbs.
*Intermittent flow rate does not represent the maximum service flow rate used for determining
the softener’s rated capacity and efficiency. Continuous operation at flow rates greater than
the service flow rate may affect capacity and efficiency performance.
**Capacity to reduce clear water iron is substantiated by laboratory test data. State of Wisconsin
requires additional treatment if water supply contains clear water iron exceeding 5 ppm.
***Canada working pressure: 1.4 - 7.0 kg/cm².
This system conforms to NSF/ANSI Standard 44 for the specific performance claims as verified
and substantiated by test data.
Variable Salt Dose: The salt dose is selected by the electronic controls at regeneration time
based on the amount needed.
Questions? Contact us at: info@northstarwater.com or visit www.northstarwater.com
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17"
21"
48"
41-1/2"
IN - OUT
34"
3-3/4"
INOUT
FRONT VIEW SIDE VIEW
Inspect Shipment
The parts required to assemble and install the unit are
included in a bag. Thoroughly check the water soften-
r for possible shipping damage and parts loss. Also
e
inspect and note any damage to the shipping carton.
Packing List
Drain HoseBypass Valve
Cover Lock
(for shipping only)
Rim Insert
(for shipping only)
Remove and discard (or recycle) all packing materials.
To avoid loss of small parts, we suggest you keep the
mall parts in the parts bag until you are ready to use
s
them.
Installation Adaptors
O-rings
(including 1 spare)
Hose Clamps
Adaptor Elbow
(including 1 spare)
Clips
Grommet
FIG. 1
Dimensions
17”
3-3/4”
21”
OUT IN
IN - OUT
48”
41-1/2”
34”
FRONT VIEW SIDE VIEW
FIG. 2
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Page 5
Before You Start
= The water softener requires a minimum water flow of 3 gallons per minute at the inlet. Maximum allowable 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 reducing valve may reduce the flow). If your home is
equipped with a back flow preventer, an expansion tank must be installed in accordance with local codes and
aws.
l
= The water softener works on 24V DC electrical power, supplied by a direct plug-in power supply (included). Be
sure to use the included power supply and plug it into a nominal 120V, 60 Hz household outlet that is in a dry
location only, grounded and properly protected by an overcurrent device such as a circuit breaker or fuse.
= Do not use this system to treat water that is microbiologically unsafe or of unknown quality without adequate dis-
infection upstream or downstream of the system.
European Directive 2002/96/EC requires all electrical and electronic equipment to be disposed of accord-
ing 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.
Water Conditioning Information
IRON
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 total* ppm of
iron, and type or types*, is determined by chemical
analysis. Four different types of iron in water are:
= Ferrous (clear water) iron
= Ferric (red water) iron
= Bacterial and organically bound iron
= Colloidal 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).**
Ferrous (clear water) iron 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 gradually clouds and turns
slightly yellow or brown as air oxidizes the iron. This
usually occurs in 15 to 30 minutes.
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 suspended
particles. After the water stands for a period of time,
the particles settle to the bottom of the container.
Generally these irons are removed from water 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 water.
This water softener will not remove colloidal iron. In
some instances, treatment may improve colloidal iron
water. 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.
SEDIMENT
Sediment is fine, foreign material particles suspended
in water. This water softener will not remove sediment. This material is most often clay or silt. Extreme
amounts of sediment may give the water a cloudy
appearance. A sediment filter installed upstream of
the water softener normally corrects this situation.
* 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 substantiated
by laboratory test data.
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Page 6
Installation Requirements
LOCATION REQUIREMENTS
Consider all of the following when selecting an installation location for the water softener.
Do not locate the water softener where freezing
=
temperatures occur. Do not attempt to treat water
over 120ºF. Freezing temperatures or hot water
damage voids the warranty.
= To condition all water in the home, install the water
softener close to the water supply inlet, and
upstream of all other plumbing connections, except
outside water pipes. Outside faucets should remain
on hard water to avoid wasting conditioned water
and salt.
= A nearby drain is needed to carry away regenera-
tion discharge (drain) water. Use a floor drain,
laundry tub, sump, standpipe, or other options
(check your local codes). See "Air Gap
Requirements" and "Valve Drain Requirements"
sections.
= The water softener works on 24V DC electrical
power, supplied by a direct plug-in power supply
(included). Provide nearby a 120V, 60Hz electrical
outlet in accordance with NEC and local codes.
= Always install the water softener between the water
inlet and water heater. Any other installed water
conditioning equipment should be installed between
the water inlet and water softener (See Figure 4
below).
= Avoid installing in direct sunlight. Excessive sun
heat may cause distortion or other damage to nonmetallic parts.
PLUMBING CODES
All plumbing must be completed in accordance with
national, state and local plumbing codes.
In the state of Massachusetts: The Commonwealth
of Massachusetts plumbing code 248-CMR shall
be adhered to. A licensed plumber shall be used
for this installation.
AIR GAP REQUIREMENTS
A drain is needed for the water discharged from the
valve during the softener’s regeneration cycle (See
Figure 3). A floor drain, close to the water softener, is
preferred. A laundry tub, standpipe, etc. are other
drain options. Secure valve drain hose in place.
Leave an air gap of 1-1/2” between the end of the
hose and the drain. This gap is needed to prevent
backflow of sewer water into the water softener. Do
not put the end of the drain hose into the drain.
1-1/2”
air gap
FLOOR DRAIN
Drain
Hose
1-1/2”
air gap
Drain
Hose
1-1/2”
air gap
LAUNDRY TUBSTANDPIPE
Drain
Hose
FIG. 3
THE PROPER ORDER TO INSTALL WATER TREATMENT EQUIPMENT
Cold Water
to House
Hot Water
to House
Untreated Water to
Outside Faucets
Water
Heater
Water
Softener
Optional
Sediment
Filter
City Water Supply
Pressure
Tank
Well Water Supply
OR
Well
Pump
FIG. 4
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Page 7
Installation Requirements
VALVE DRAIN REQUIREMENTS
Using the flexible drain hose (included), measure and
cut to the length needed. Flexible drain hose is not
allowed in all localities (check your plumbing codes). If
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 in. minimum tube) and
1/2" tubing from your local hardware store. Plumb a
rigid drain as needed (See Figure 6).
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.
1/4” NPT
Thread
Clip
Cut barbs from drain fit-
ting (pull clip to remove
1/4 NPT
Threads
Barbs
fitting from valve)
Barbs for 3/8”
I.D. Tubing
Hose Clamp
Drain Hose
FIG. 5
Compression Fitting.
1/4 NPT x 1/2” O.D.
Tube (not included)
1/2” Outside Dia.
Copper Tube
(not included)
FIG. 6
INLET / OUTLET PLUMBING OPTIONS
Always install either a single bypass valve (provided),
as shown in Figure 7, or, if desired, parts for a 3 valve
bypass system (not included) can be purchased and
assembled, as shown in Figure 8. Bypass valves
allow you to turn off water to the softener for maintenance if needed, but still have water in house pipes.
Use:
= Copper pipe
= Threaded pipe
= PEX (Crosslinked Polyethylene) pipe
= CPVC plastic pipe
= Other pipe approved for use with potable water
IMPORTANT: Do not solder with plumbing attached to
installation adaptors and single bypass
valve. Soldering heat will damage the
adaptors and valve.
Outlet
Valve
SINGLE BYPASS VALVE
Pull out for “Service”
(Soft water)
Push in for
“Bypass”
3 VALVE BYPASS
Bypass
Valve
From Water
Softener
To Water
Softener
FIG. 7
Inlet
Valve
FIG. 8
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Page 8
Installation Instructions
TYPICAL INSTALLATION
To Outside
Faucets
Plug-in
Power
Supply
Valve Drain
Elbow
Valve Drain
Hose*
ater Softener
W
To
Controller
Hard Water
Valve
pe
Pi
r
te
a
W
n
i
a
M
Overflow
Drain Elbow
Salt Storage
Tank Overflow
Hose*
Conditioned
Water
Clips
Inlet
Lubricated
O-ring
Secure Valve Drain Hose
in place over Floor Drain
Outlet
Pipe
1” NPT Sweat
Adaptor (not
included)
1” NPT
Threaded
Adaptor
O-ring
Single
Bypass Valve
*Do not connect the
water softener valve drain
tubing to the salt storage
tank overflow hose.
Floor Drain
TURN OFF WATER SUPPLY
1. Close the main water supply valve, located near the
well pump or water meter.
2. Shut off the electric or fuel supply to the water heater.
3. Open all faucets to drain all water from house pipes.
NOTE: Be sure not to drain water from the water
heater, as damage to the water heater elements could result.
ASSEMBLY
1. North Star models are factory assembled. During
installation, unsnap and remove the top cover,
together with the salt lid, to expose the softener
valve assembly. Set them aside to prevent damage.
Check the brinewell to be sure it is secured and vertical (See Figure 11).
1-1/2”
air gap
NOTE: See “Air Gap Requirements” section.
2. Install the brine tank overflow grommet and elbow
into the 13/16” diameter hole in the back of the salt
storage tank wall.
MOVE THE UNIT INTO PLACE
1. Move the water softener into the desired location.
Set it on a solid, level surface.
IMPORTANT: Do not place shims directly under the
salt storage tank to level the softener.
The weight of the tank, when full of
water and salt, may cause the tank to
fracture at the shim.
continued on next page
FIG. 9
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Page 9
Installation Instructions
ontinued from previous page
c
2. Visually check and remove any debris from the
water softener valve inlet and outlet ports.
3. Make sure the turbine assembly spins freely in the
out" port of the valve (See Figure 10).
"
4. If not already done, put a light coating of silicone
grease on the single bypass valve o-rings.
5. Push the single bypass valve into the softener valve
as far as it will go. Snap the two large holding clips
into place, from the top down as shown in Figures
12 & 13.
IMPORTANT: Be sure the clips snap firmly into place
so the single bypass valve will not pull
out.
COMPLETE INLET AND OUTLET PLUMBING
Measure, cut, and loosely assemble pipe and fittings
from the main water pipe to the inlet and outlet ports of
the water softener valve. Be sure to keep fittings fully
together, and pipes squared and straight.
Be sure hard water supply pipe goes to the water softener valve inlet side.
NOTE: Inlet and outlet are marked on the water sof-
tener valve. Trace the water flow direction to
be sure hard water is to inlet.
IMPORTANT: Be sure to fit, align and support all
plumbing to prevent putting stress on
the water softener valve inlet and outlet.
Undue stress from misaligned or unsupported plumbing may cause damage to
the valve.
Complete the inlet and outlet plumbing for the type of
pipes you will be using.
Salt Lid
Brinewell
over
C
Brinewell
Stand
Tube
Brine
Valve
Top Cover
Clip
Channel
Nozzle & Venturi
Assembly
Brine Tank
Overflow
Grommet
Brine Tank
Overflow
Elbow
13/16” Hole
Brine
Tubing
Salt
Storage
Tank
Float
Stem
FIG. 11
Single Bypass Valve
FIG. 12
Turbine
Support
Valve Outlet Turbine
FIG. 10
Correct Assembly
Clip
Outside diameter
of water softener
valve inlet & outlet
NOTE: Be sure all 3 tabs of the clip go through the matching
holes on the water softener valve inlet or outlet, and
fully into the channel on the single bypass valve.
Make sure that the tabs are fully seated.
9
Outside diameter
of clip channel on
single bypass valve
FIG. 13
Page 10
Installation Instructions
COLD WATER PIPE GROUNDING
CAUTION: The house cold water pipe (metal only)
is often used as a ground for the house
electrical system, The 3-valve bypass
type of installation, shown in Figure 8,
will maintain ground continuity. If you
use a plastic bypass valve at the unit,
continuity is broken. To restore the
ground, do the following:
1. Install a #4 copper wire across the removed section
of main water pipe, securely clamping it at both
ends (See Figure 14) - parts not included.
NOTE: Check local plumbing and electrical codes
for proper installation of the ground wire.
The installation must conform to them. In
Massachusetts, plumbing codes of
Massachusetts shall be conformed to.
Consult with your licensed plumber.
Ground
Wire
Clamp (2)
FIG. 14
INSTALL VALVE DRAIN HOSE
NOTE: See valve drain options on pages 6 & 7.
1. Measure, cut to needed length and connect the 3/8"
drain line (provided) to the water softener valve
drain fitting. Use a hose clamp to hold the hose in
place.
IMPORTANT: If codes require a rigid drain line see
“Valve Drain requirements" section.
2. Run the drain hose (or a rigid line) to the floor drain.
Secure drain hose. This will prevent “whipping'' during regenerations. Be sure to provide a 1-1/2”
minimum air gap to prevent possible sewer
water backup. See “Air Gap Requirements" sec-
tion.
NOTE: In addition to a floor drain, you can use a laun-
dry tub or standpipe as a drain point for this
hose.. Avoid long drain hose runs, or elevating
the hose more than 8 feet above the floor.
INSTALL SALT STORAGE TANK OVERFLOW
HOSE
. Measure, cut to needed length and connect the 3/8”
1
drain line (provided) to the salt storage tank overflow
lbow and secure in place with a hose clamp.
e
2. Route the hose to the floor drain, or other suitable
drain point no higher than the drain fitting on the salt
storage tank (This is a gravity drain). If the tank
overfills with water, the excess water flows to the
drain point. Cut the drain line to the desired length
and route it neatly out of the way.
IMPORTANT: For proper operation of the water soften-
er, do not connect the water softener
valve drain tubing to the salt storage
tank overflow hose.
TEST FOR LEAKS
To prevent air pressure in the water softener and
plumbing system, complete the following steps in order:
1. Fully open two or more softened cold water faucets
close to the water softener, located downstream
from the water softener.
2. Place the bypass valve (single or 3 valve) into the
"bypass" position. See Figures 7 & 8 on Page 7.
3. Slowly open the main water supply valve. Run
water until there is a steady flow from the opened
faucets, with no air bubbles.
4. Place bypass valve(s) in "service" or soft water position as follows:
= Single bypass valve: Slowly move the valve stem
toward "service," pausing several times to allow
the water softener to fill with water.
= 3 valve bypass: Fully close the bypass valve and
open the outlet valve. Slowly open the inlet valve,
pausing several times to allow the water softener
to fill with water.
5. After about three minutes, open a hot water faucet
until there is a steady flow and there are no air bubbles, then close this faucet.
6. Close all cold water faucets and check for leaks at
the plumbing connections that you made.
7. Check for leaks around clips at softener’s inlet and
outlet. If a leak occurs at a clip, depressurize the
plumbing (turn off the water supply and open
faucets) before removing clip. When removing clips
at the softener’s inlet or outlet, push the single
bypass valve body toward the softener (See Figure
15). Improper removal may damage clips. Do not
reinstall damaged clips.
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Page 11
Installation Instructions
SANITIZE THE WATER SOFTENER /
SANITIZE AFTER SERVICE
If removing
clips...
...depressurize the
plumbing, then push
Bypass Valve body
toward softener
FIG. 15
ADD WATER AND SALT TO THE SALT
STOR AGE TANK
1. Using a container, add about three gallons of clean
water into the salt storage tank.
2. Add salt to the storage tank. Use nugget, pellet or
coarse solar salts with less than 1% impurities.
PLUG IN THE POWER SUPPLY
During installation, the water softener wiring may be
moved or jostled from place. Check to be sure all
leadwire connectors are secure on the back of the
electronic board and be sure all wiring is away from
the valve gear and motor area, which rotates during
regenerations.
1. Plug the water softener’s power supply into an electrical outlet that is not controlled by a switch and is
approved by local codes.
NOTE: The water heater is filled with hard water and,
as hot water is used, it will refill with conditioned water. In a few days, the hot water will
be fully conditioned. To have fully conditioned
hot water immediately, wait until the initial
recharge is over. Then, drain the water heater
(following instructions for water heater) until
water runs cold.
Care is taken at the factory to keep your unit clean and
sanitary. Materials used to make the unit will not infect
or contaminate your water supply, and will not cause
bacteria to form or grow. However, during shipping,
storage, installation and operation, bacteria could get
into the unit. For this reason, sanitizing as follows is
suggested* when installing.
1. Slide open the salt lid, remove the brinewell cover
and pour about 3 oz. (6 tablespoons) of household
bleach into the softener brinewell. Replace the
brinewell cover.
2 Make sure the bypass valve(s) is in the “service”
(open) position.
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 softener. 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.
*Recommended by the Water Quality Association. On some
water supplies, the unit may need periodic disinfecting.
RESTART THE WATER HEATER
1. Turn on the electricity or fuel supply to the water
heater and relight the pilot, if applicable.
NOTE: The water heater is filled with hard water and,
as hot water is used, it refills with conditioned
water. In a few days, the hot water will be fully
conditioned. To have fully conditioned hot
water immediately, wait until the initial recharge
(previous step) is over. Then, drain the water
heater (following instructions for water heater)
until water runs cold.
PROGRAM THE CONTROLLER
1. Install the softener’s top cover and salt lid.
2. Complete the Programming Steps on Pages 12 & 13.
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11
Page 12
Select
press for tonight
hold for immediate
S
alt
Set
L
evel
U
se
Water
Programming the Water Softener
Display
SET SALT LEVEL button
STATUS LIGHT
(see below)
STATUS LIGHT
When the North Star water softener is connected to
electrical power, the status light on the control panel
will be on or flashing, as follows:
= Light on steady (not flashing) - The system has
power applied and does not require any attention.
= Light flashing rapidly, with “PRESENT TIME”
shown in the display and the clock flashing
slowly - The present time needs to be set, either
during initial start up or after a long power outage.
See “Set Present Time of Day”, at right.
= Light flashing slowly, along with the salt level
indicators in the display - The salt monitor system indicates a low salt level and needs to be set.
See “Salt Monitor System” on Page 14.
= Light flashing rapidly, with “Err” shown in the
display - The electronic self-diagnostics have
detected a problem. See “Troubleshooting” on
Page 21.
SELECT button
WATER USE button
P buttonRECHARGE button
U
DOWN button
FIG. 16
PROGRAM THE SOFTENER
When the power supply is plugged into the electrical
outlet, the model code (nS42) and a software version
number (example: J3.9), are briefly shown in the display. Then the words “PRESENT TIME” appear and
12:00 PM begins to flash.
FIG. 17
SET PRESENT TIME OF DAY
If the words “PRESENT TIME" do not show in the display, press the SELECT button a few times until they
do.
FIG. 18
1. Press the r UP or s DOWN buttons to set the
present time. Up moves the display ahead; down
sets the time back. Be sure AM or PM is correct.
continued on next page
12
Page 13
Programming the Water Softener
ontinued from previous page
c
NOTE: Press buttons and quickly release to slowly
advance the display. Hold the buttons down
or fast advance.
f
2. When the correct time is displayed, press the
SELECT button, and the display will change to
show the “Hardness” screen.
SET WATER HARDNESS NUMBER
If you completed the previous step, the word “HARDNESS" should show in the display. Otherwise, press
the SELECT button several times until it does.
1. Press the r UP or s DOWN buttons to set the
hardness of your water supply, in grains per gallon.
The default is 25.
FIG. 19
NOTE: If your water supply contains iron, compen-
sate for it by adding to the water hardness
number. For example, assume your water is
20 gpg hard and contains 2 ppm iron. Add 5
to the hardness number for each 1 ppm of
iron. In this example, you would use 30 for
your hardness number.
20 gpg hardness
2 ppm iron x 5 = 10 +10
(times) 30 HARDNESS NUMBER
2. When finished setting your water’s hardness number, press the SELECT button, and the display will
change to show the “Recharge Time” screen.
SET RECHARGE (REGENERATION)
START TIME
. The softener’s default recharge start time is 2:00
1
AM. This is normally a time of day when water is
ot being used in the household. Hard water
n
bypasses the softener if the household draws
water during the recharge cycle. If a different
recharge start time is desired, press the
r UP or
s DOWN buttons to change the time, in 1-hour
increments. Be sure AM or PM is correct.
2. When the desired recharge start time is displayed,
press the SELECT button, and the display will
change to show one of the “Salt Type” screens
shown below.
FIG. 21
SET SALT TYPE
If you completed the previous step, either “NaCl” (for
Sodium Chloride) or “KCl” (for Potassium Chloride)
should show in the display. Otherwise, press the
SELECT button several times until one of them does.
1. Press the r UP or s DOWN buttons to set the
type of salt you will be using in your water softener.
The default is NaCl (standard Sodium Chloride
water softener salt). If you will be using KCl
(Potassium Chloride) instead, be sure to set salt
type to KCl. This setting adjusts the regeneration
cycle times to compensate for the different rate at
which KCl dissolves. See also Page 18 for more
information on salt types.
2. When the correct salt type is displayed, press the
SELECT button, and the display will return to the
normal run (time of day) screen.
If you completed the previous step, the words
“RE CHARGE TIME" should show in the display.
Otherwise, press the SELECT button several times
until they do.
FIG. 20
FIG. 22
13
Page 14
Controller Features
LEVEL
SALT
press for tonight
hold for immediate
Salt
Set
Level
L
EXTRA RECHARGE
Sometimes, a manually initiated recharge (regeneration) may be desired, or needed. Two examples are:
= You have used more water than usual (guests visit-
ing) and you may run out of soft water before the
next automatic regeneration.
= You did not add salt to the softener before it ran
out. Add salt to the softener before regenerating.
You can start a regeneration immediately, or you can
set the controller to regenerate at the next preset
recharge time (2:00 AM, or as set).
RECHARGE NOW
Press the RECHARGE button and hold for 3 seconds, until the words “RECHARGE”, “Serv” and “Fill”
begin to flash in the display. The softener enters the
fill cycle of regeneration immediately. This regeneration will take about 2 hours to complete. Then, you
will have soft water again.
NOTE: If the “Clean Feature” is set ON, the normal
regeneration cycle is preceded by a cleaning
backwash and rinse. The words “CLEAN”
and “Bkwsh” or “Rinse” flash in the display,
along with the minutes of the clean cycle
remaining.
SALT MONITOR SYSTEM
The water softener has a salt monitor indicator light to
remind you to add salt to the storage tank.
NOTE: You must set salt level each time salt is
added to the water softener.
NOTE: The salt monitor system estimates salt levels,
and accuracy will vary with different salts.
To set this monitor system:
1. Lift the salt lid and level the salt in the storage
tank.
2. The salt level scale, on the brinewell inside the
tank, has numbers from 0 to 8 (see Fig. 25).
Observe the highest number the leveled salt is at,
or closest to.
Salt Level
Bars
Salt
Level
Brinewell
Numbers
FIG. 23
RECHARGE TONIGHT
Press and release (do not hold) the RECHARGE button. “RECHARGE TONIGHT” will begin flashing in
the display, and the softener will begin regeneration
at the next preset recharge time (2:00 AM, or as set).
If you decide to cancel the regeneration before it
starts, press and release the RECHARGE button
once more. “RECHARGE TONIGHT” will stop flashing in the display.
FIG. 25
3. Press the SET SALT LEVEL button as many times
as necessary to make the salt level bars in the display (see Fig. 25) match the number on the brine well. At level 2 or below, the Status Light will flash
(See Page 12).
4. If you want to turn the salt monitor off, press the
SET SALT LEVEL button past 8, until “OFF” shows
in the display next to the number 8.
FIG. 26
FIG. 24
14
Page 15
Controller Features
OPTIONAL SETTINGS:
= SALT EFFICIENCY
= CLEAN FEATURE
= CLEAN FEATURE MINUTES
= 97% FEATURE
= 12 / 24 HOUR CLOCK
= GALLONS / LITERS
= MAXIMUM DAYS BETWEEN REGEN-
ERATIONS
= BACKWASH & FAST RINSE TIMES
1. To set any of these options, press and hold
SELECT for 3 seconds until “000” shows in the display. Then press (do not hold) SELECT again to
display one of the “Salt Efficiency” screens shown
below.
2. Press SELECT again to display one of the “Clean”
screens shown below.
FIG. 28
CLEAN: This feature is beneficial on water sup-
plies containing iron and/or high amounts of sediments (sand, silt, dirt, etc.). When set to ON, a
backwash and fast rinse cycle will occur first, preceding the normal regeneration sequence. This
provides extra cleaning of the resin bed before it is
regenerated with the salt brine. To conserve water,
if your water supply does not contain iron or sediments, be sure this feature is set to OFF. The
default is OFF. Use the r UP or s DOWN buttons to change between OFF and ON.
3. Press SELECT again to display the “Clean Time”
screen shown below.
Efficiency Icon
SALT EFFICIENCY: When this feature is ON, the
water softener will operate at salt efficiencies of
4000 grains of hardness per pound of salt or higher. The softener may recharge more often using
smaller salt dosage and less water. This softener
is shipped with the efficiency feature set OFF. Use
the r UP or s DOWN buttons to change between
OFF and ON. An efficiency icon will be displayed
when this feature is ON.
FIG. 27
California Efficiency Requirement
Your North Star water softener has a “High
Efficiency” feature that can be set ON or OFF.
This softener is shipped with the efficiency feature set OFF, which will utilize the maximum
rated capacity while most often achieving maximum salt efficiencies. When installing this unit
in the State of California, you MUST turn the
efficiency feature ON. The softener may initiate
more frequent recharges, but it will operate at
4000 grains per pound of salt or higher.
FIG. 29
CLEAN FEATURE MINUTES: If you have set the
Clean Feature ON, the length of the extra backwash cycle auto matically is set to 10 minutes.
However, you can ad just this time from 1 to 30
minutes in length. To change this cycle time, use
the r UP button to increase the time, or the
s DOWN button to shorten the time. If no change
is desired, continue to next step.
4. Press SELECT again to display the “97%” screen.
FIG. 30
15
Page 16
Controller Features
97% FEATURE: The 97% Feature can save salt
and water by regenerating when 97% of the soften-
r’s capacity has been used up. With this feature
e
ON, the regeneration can occur at any time (whenever the system has reached 97% of its capacity).
The default is OFF. If this feature is desired, turn it
on by pressing the
5. Press SELECT again to display the “12 or 24 hr”
screen.
r UP button.
FIG. 31
12 OR 24 HOUR CLOCK: All time displays are
shown in 12 hour (AM/PM) time format at the
default setting. If 24 hour time format is de sired,
set to 24 hr by pressing the r UP button.
6. Press SELECT again to display the “Gallons or
Liters” screen.
FIG. 32
GALLON OR LITER READINGS: Water usage
and flow rate displays are shown in gallons at the
default setting. If you prefer liters, change this setting from “Gals” to “Liter” by pressing the
r UP button.
MAXIMUM DAYS BETWEEN REGENERATIONS:
The electronic controller automatically determines
egeneration fre quency. This provides the greatest
r
operating efficiency and, under most conditions this
feature will be left in its default mode. However,
you can set this feature to force a regeneration
every set number of days. You may want to do this
if, for exam ple, your water supply contains iron and
you want the softener to regenerate at least once
every few days to keep the resin bed clean. Use
r UP or s DOWN buttons to change the
the
number of days (up to 15). If no change is desired,
continue to next step.
8. Press SELECT again to display the “Backwash
Time” setting screen.
FIG. 34
BACKWASH & FAST RINSE TIMES: If you expe-
rience salty tasting water after regeneration, you
may need to increase the backwash and fast rinse
times. The default backwash time is 10 minutes
and the default fast rinse time is 3 minutes.
However, you may increase or decrease the backwash and fast rinse times, in 1 minute increments.
If you wish to change the backwash time, use the
r UP or s DOWN buttons to set the backwash
time between 1 and 30 minutes*. Then press
SELECT to display the “Fast Rinse Time” setting
screen.
7. Press SELECT again to display the “Recharge
Days” screen.
FIG. 33
FIG. 35
If you wish to change the fast rinse time, use the
r UP or s DOWN buttons to set the fast rinse
time between 1 and 30 minutes.*
* Setting backwash and/or fast rinse times too low
may result in salty tasting water after regeneration.
9. Press SELECT to return to the normal run (time of
day) screen.
16
Page 17
Controller Features
WATER FLOW THROUGH THE SOFTENER
To view the flow rate through the softener in liters (or
gallons) per minute, press the WATER USE button. If
soft water is in use, the flow rate will be displayed to
the nearest tenth of a liter (or gallon). The display will
show “0” when all faucets and water using appliances
are off.
FIG. 36
AVERAGE DAILY GALLONS OR LITERS
Press the WATER USE button a second time to display the average number of gallons (or liters) of soft
water that the household uses each day. This water
usage figure is recalculated daily by the electronic
controller. To turn this display off, press the WATER
USE button once again.
TANK LIGHT
A light inside the salt storage tank will come on whenever you open the salt lid. A “Tank Light” icon is displayed when this light is on. The light turns off when
you close the salt lid. It will also turn off automatically
after 15 minutes if the salt lid is left open.
Tank Light
Icon
FIG. 39
POWER OUTAGE MEMORY
If electrical power to the softener is interrupted, the
time display is blank, but the electronic controller
keeps correct time for several hours. When power is
restored, you must reset the present time only if the
display is flashing. All other settings are maintained
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 occur at the wrong time of day until you reset the
clock to the correct time of day.
FIG. 37
RECHARGE TIME REMAINING & VALVE
POSITION INDICATORS
One of the valve position indicators (Serv, Fill, Brine,
Bkwsh, Rinse) is displayed while the softener is
recharg ing. RECHARGE flashes in the display and,
beginning with Brine, the minutes of recharge remaining before return to service appears in place of the
present time. When the valve is moving from one
cycle to another, both position indica tors are flashing.
FIG. 38
NOTE: If the water softener was regenerating when
power was lost, it will now finish the cycle.
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17
Page 18
Routine Maintenance
ADDING SALT
Lift the salt lid and check the salt storage level fre-
uently. If the water softener uses all the salts before
q
you refill it, you will experience hard water. Until you
have established a refilling routine, check the salt
every two or three weeks. Always add if less than 1/4
full. Be sure the brinewell cover is on.
NOTE: In humid areas, it is best to keep the salt stor-
age level lower, and to refill more often to
avoid salt “bridging”.
Recommended Salt: Nugget, pellet or coarse solar
salts with less than 1% impurities.
Salt Not Recommended: Rock salt, high in impurities, block, granulated, table, ice melting, ice cream
making salts, etc.
BREAKING A SALT BRIDGE
Sometimes, a hard crust or salt “bridge” forms in the
brine tank. It is usually caused by high humidity or
the wrong kind of salt. When the salt “bridges,” an
empty space forms between the water and the salt.
Then, salt will not dissolve in the water to make brine.
Without brine, the resin bed is not recharged and
hard water will result.
If the storage tank is full of salt, it is difficult to tell if
you have a salt bridge. A bridge may be underneath
loose salt. Take a broom handle, or like tool, and
hold it next to the water softener. Measure the distance from the floor to the rim of the water softener.
Then, carefully push the broom handle straight down
into the salt. If a hard object is felt before the pencil
mark is even with the top, it is most likely a salt
bridge. Carefully push into the bridge in several
places to break it. Do not use any sharp or pointed
objects as you may puncture the brine tank. Do not
try to break the salt bridge by pounding on the outside of the salt tank. You may damage the tank.
Push tool into
salt bridge to
break
1” - 2”
Pencil
Mark
Broom
Handle
Salt
Salt Bridge
Empty Space
Water Level
FIG. 40
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18
Page 19
Routine Maintenance
CLEANING THE NOZZLE & VENTURI
A clean nozzle & venturi (See Figure 41) is a necessity
for the water softener to work properly. This small
component creates the suction to move brine from the
brine tank, into the resin tank. If it should become
lugged with sand, silt, dirt, etc., the water softener will
p
not work, and hard water will result.
Cap
O-ring Seal
Screen Support
Screen
Nozzle & Venturi Disc
Gasket
*Flow Plug (HVDC)
Housing
*Install with lettered
side up, concave
side down.
IMPORTANT: Be sure small hole in the gasket is centered directly over the small hole in the nozzle & venturi housing. Be sure the numbers are facing up.
Ferrule
Nut
*Flow Plug
Cone Screen
FIG. 41
To get access to the nozzle & venturi, remove the
water softener’s top cover. Put the bypass valve(s)
into the bypass position. Be sure the water softener is
in soft water (service) cycle (no water pressure at nozzle & venturi). Then, holding the nozzle & venturi
housing with one hand, un screw the cap. Do not lose
the o-ring seal. Lift out the screen support and screen.
Then, remove the nozzle & venturi disc, gasket and
flow plug(s). Wash the parts in warm, soapy water
and rinse in fresh water. Be sure to clean both the top
and bottom of the nozzle & venturi disc. If needed,
use a small brush to remove iron or dirt. Do not
scratch, misshape, etc., surfaces of the nozzle & venturi.
Carefully replace all parts in the correct order.
Lubricate the o-ring seal with silicone grease and
locate in place. Install and tighten the cap by hand,
while supporting the housing. Overtightening may
break the cap or housing. Put the bypass valve(s) into
service (soft water) position.
Recharge the softener to reduce water level in the
tank. This will also assure that the softener is completely recharged and ready to provide softened water
again. Check the water level in the tank by looking
down the brinewell. If the water level does not drop
after a recharge, the problem has not been resolved.
Contact us at: info@northstarwater.com
PROTECT THE WATER SOFTENER FROM
FREEZING
If the softener is installed where it could freeze (summer cabin, lake home, etc.), you must drain all water
from it to stop possible freeze damage. To drain the
softener:
1. Close the shut-off valve on the house main water
pipe, near the water meter or pressure tank.
2. Open a faucet in the soft water pipes to vent pressure in the softener.
3. Move the stem in the single bypass valve to bypass.
Close the inlet and outlet valve in a 3 valve bypass
system, and open the bypass valve. If you want
water in the house pipes again, reopen the shut-off
valve on the main water pipe.
4. Unplug the power supply at the wall outlet. Remove
the softener’s top cover, together with the salt lid.
Take off both drain hoses if they will interfere with
moving the softener into position over the drain.
5. Carefully remove the large holding clips at the softener inlet and outlet. Separate the softener from
the plastic installation adaptors, or from the bypass
valve.
6. Lay a piece of 2 inch thick board near the floor drain
(See Figure 42).
7. Move the softener close to the drain. Slowly and
gently, tip it over until the rim rests on the wood
block with the inlet and outlet over the drain. Do not
allow the softener’s weight to rest on the inlet and
outlet fittings or they may break.
8. Tip the bottom of the softener up a few inches and
hold until all water has drained. Leave the softener
laying like this until you are ready to use it. Plug the
inlet and outlet with clean rags to keep dirt, bugs,
etc. out.
Floor Drain
Wood Block
FIG. 42
19
Page 20
Troubleshooting Guide
PROBLEM CAUSE CORRECTION
No soft water 1. No salt in the storage tank. Refill with salt and then use RECHARGE NOW feature.
No soft water & display is blank
No soft water & salt
level not dropping
No soft water & salt
storage tank full of
water,
water running to
drain while unit is in
the soft water cycle
Water hard sometimes
Iron in water 1. Clear water iron in water supply. Test untreated water for hardness and iron, and program
Resin in house hold
plumbing
Salt storage tank
leaking
Motor stalled or
clicking
Error code E1, E3 or
E4 appears
Error code E5 1. Electronic control malfunction. Replace electronic control board.
1. Power supply unplugged at wall outlet, or
power cable disconnected from back of elec tronic board or power supply malfunction.
2. Fuse blown, circuit breaker popped, or cir-
uit switched off (See “Power Outage
c
Memory” on Page 17).
3. Electronic control board malfunction. Replace electronic control board (See Page 25).
1. Salt storage tank “bridged”. Refer to “Breaking a Salt Bridge” section to break.
2. Bypass valve(s) in “bypass” position. Move bypass valve(s) to “service” position.
1. Dirty, plugged or damaged nozzle & venturi
assembly
2. Inner valve fault causing leak. Replace seals and rotor.
3. Valve drain hose is plugged. Hose must not have any kinks, sharp bends or any water
4. Valve drain line and Salt Storage Tank
overflow drain connected together by a tee.
5. Low or high system water pressure (low
pressure may disrupt brine draw during
recharge, high pressure may cause inner
valve parts failure).
6. Brine float dirty or broken. Clean or replace Brine Valve Float Assembly.*
7. Leak between valve and resin tank. Replace o-rings between resin tank and valve.
1. Incorrect time set. Check and change time setting.
2. Incorrect water hardness set. Refer to “Set Water Hardness” section to set correctly.
3. Incorrect model code programmed. Refer to “Program the Water Softener” section to set cor-
4. Hot water being used when softener is
regenerating.
5. Possible increase in water hardness. Test untreated water for hardness and iron, and program
6. Leaking faucet or toilet valve. Excessive
water usage.
2. Iron in soft water. Clean resin bed with Resin Bed Cleaner. Follow instruc-
3. Bacterial or organic bound iron. Cannot be treated by water softener.
1. Crack in distributor or riser tube. Replace resin tank assembly.
1. Crack in brine tank. Replace salt storage tank assembly.
1. Motor malfunction or internal valve fault
causing high torque on motor.
1. Fault in wiring harness or connections to
position switch.
2. Fault in switch. Replace switch.
3. Fault in valve causing high torque. Replace rotor/seal.
4. Motor inoperative. Replace motor.
Check for loss of power and correct. Reset electronic
controls and then use RECHARGE NOW feature.
Replace fuse, reset circuit breaker, or switch circuit on,
nd then use RECHARGE NOW feature.
a
Take apart, clean and inspect nozzle & venturi (See
“Cleaning the Nozzle & Venturi” section.
flow blockage (See “Valve Drain Requirements” section.
Disconnect tee and run separate drain lines.
If pressure is low, increase well pump output to a minimum 20 psi. If daytime pressure is over 100 psi, add a
pressure reducing valve in the supply pipe to the softener. Contact a licensed plumber.
rectly.
Avoid using hot water while the softener is regenerating,
as the water heater will fill with hard water.
the water softener accordingly (See “Set Water
Hardness”) section to set.
A small leak can waste hundreds of gallons of water in a
few days. Fix all leaks and always fully close faucets.
the water softener accordingly (See “Set Water
Hardness”) section to set.
tions on package.
a. Replace rotor/seal.
b. Replace motor & switch.
Replace wiring harness or connections to position switch.
20
Page 21
Troubleshooting
AUTOMATIC ELECTRONIC DIAGNOSTICS
his water softener has a self-diagnostic function for
T
the electrical system (except input power and/or water
meter). The water softener monitors electronic components and circuits for correct operation. If a malfunction occurs, an error code appears in the display.
FIG. 43
While an error code appears in the display, all buttons
are inoperable except the SELECT button. SELECT
remains operational so the service person can perform
the Manual Advance Diagnostics, see below, to further
isolate the problem.
TO REMOVE AN ERROR CODE:
1. Unplug power supply from electrical outlet.
2. Correct problem.
3. Plug power supply back in.
4. Wait 8 minutes. The error code will return if the
problem was not corrected.
MANUALLY INITIATED ELECTRONIC
DIAGNOSTICS
1. To enter diagnostics, press the SELECT button and
hold for three seconds. The display will change to
show turbine count, valve cycle position, and position switch status (open or closed).
Valve Position Indicator
Number of Days since
the last Regeneration
Turbine Count
(No Water Flowing)
Position Switch Indicator (Open)
TURBINE OPERATION: If no water is flowing through
the softener, the turbine indicator displays three zeros.
When water is flowing, a 000 to 140 count repeats for
each gallon (3.8 liters) of water passing through the
turbine. To check for positive operation of the turbine
if zeros are shown, open a nearby soft water faucet
and observe the turbine count. If you don’t get a reading in the display with faucet open, pull the sensor
housing from the valve outlet port (see Fig. 45). Pass
FIG. 44
Motor
Position
Switch
Valve Outlet
Sensor
Housing
Turbine
Turbine
Support
& Shaft
FIG. 45
a small magnet back and forth in front of the sensor.
You should get a reading in the display. If you get a
reading, unhook the inlet and outlet plumbing and
check the turbine for binding.
POSITION SWITCH STATUS: With the valve in service, or any of the recharge cycle positions, the position
switch indicator will show the switch open. While the
valve is rotating from one position to another, the position switch indicator will show the switch closed.
There is likely a problem if indications vary from this
pattern.
Minutes of Cycle (ex am ple: Fill) Remaining
Turbine Count
(Water Flowing)
FIG. 46
OTHER INFORMATION: While in the diagnostics
screen, the following information is available and may
be beneficial for various reasons. This information is
retained by the electronic controller from the first time
electrical power is applied to the unit.
= Press and hold the r UP button to display the
number of days this controller has had electrical
power applied.
= Press and hold the s DOWN button to display the
number of regenerations initiated by this controller
since the model code number was entered.
NOTE: If the electronic controller is left in the diagnos-
tic display (or a flashing display when setting
times or hardness), the normal time of day display automatically returns if a button has not
been pressed for 4 minutes. To return to the
diagnostic display, repeat step 1, above.
21
Page 22
Troubleshooting
RESETTING TO FACTORY DEFAULTS
To reset the electronic controller to its factory default
for all settings (time, hardness, etc.):
1. Press the SELECT button and hold it until the display changes twice to show the flashing model
code.
2. Press the r UP button to display a flashing “SoS”.
Cam
osition Markers
P
(valve in service)
Motor
FIG. 47
3. Press the SELECT button, and the electronic con-
troller will restart.
4. Set the present time, hardness, etc., as described
on pages 12 & 13.
MANUAL ADVANCE REGENERATION
CHECK
This check verifies proper operation of the valve
motor, brine tank fill, brine draw, regeneration flow
rates, and other controller functions. Always make
the initial checks first, and perform the manually initiated electronic diagnostics.
NOTE: The display must show a steady time (not
flashing). If an error code shows, first press
the SELECT button to enter the diagnostic
display.
1. Press the RECHARGE button and hold for 3 seconds. RECHARGE begins to flash as the softener’s valve advances from the service to fill position.
2. Remove the brinewell cover and, using a flashlight,
observe fill water entering the tank.
3. If water does not enter the tank, look for an
obstructed nozzle, venturi, fill flow plug, brine tubing, or brine valve riser pipe.
4. After observing fill, press the RECHARGE button to
move the softener into brining. A slow flow of
FIG. 48
water to the drain will begin. Verify brine draw from
the brine tank by shining a flashlight into the
brinewell and observing a noticeable drop in the
liquid level.
5. If the softener does not draw brine:
= nozzle and/or venturi dirty
= nozzle and venturi not seated properly on gasket
= restricted drain (check drain fitting and hose)
= ineffective nozzle and venturi seal
= other inner valve problem (rotor seal, rotor &
disc, wave washer, etc.)
NOTE: If water system pressure is low, an elevated
drain hose may cause back pressure, stopping brine draw.
6. Again press RECHARGE to move the softener into
backwash. Look for a fast flow of water from the
drain hose.
7. An obstructed flow indicates a plugged top distributor, backwash flow plug or drain hose.
8. Press RECHARGE to move the softener into fast
rinse. Again look for a fast drain flow. Allow the
softener to rinse for a few minutes to flush out any
brine that may remain in the resin tank from the
brining cycle test.
9. To return the softener to service, press RECHARGE
once more.
Questions? Contact us at: info@northstarwater.com or visit www.northstarwater.com
22
Page 23
Wiring Schematic
Back of Electronic
Controller (PWA)
120V AC
60 Hz
Power
Supply
Turbine
Tank
Light
Sensor
24V DC
O
Pwr.
In
UT
G
5
+
ND
Tank
Light
Position/
Turbine
grn
org
Motor
Valve
Motor
O
N
Position
Switch
NC
C
FIG. 49
23
Page 24
Softener Exploded View
8
7
6
5
1
2
3
4
5
6
7
9
8
10
Valve Assembly
See Pages 26 & 27
for parts
22
21
20
27
23
28
24
26
11
12
15
16
13
14
18
17
25
19
24
Page 25
Softener Parts List
Key
No.
Part No. Description
329803
1 7
2 7371371
3 7351054 Power Supply, 24V DC
4 7369798
5 7322712 Faceplate (order decal below)
7329829 Faceplate Decal
¢
– 7112963
6
7
8
9 7077870 Top Distributor
10 7247996 Repl. Resin Tank, 10” x 40”
11 0502272 Resin, 1 cu. ft.
12 7327584 Repl. Bottom Distributor
13 7338365 Repl. Brine Tank
– 7327576
14
15
á
á
á
á
á
op Cover
T
epl. Salt Lid (includes magnet, in -
R
struction decal & North Star badge)
Repl. Electronic Control Board
(PWA)
Distributor O-Ring Kit
(includes Key Nos. 6-8)
O-Ring, 2-7/8” x 3-1/4”
O-Ring, 13/16” x 1-1/16”
O-Ring, 2-3/4” x 3”
Brinewell Mounting Hardware Kit
(includes Key Nos. 14 & 15)
Screw, 1/4-20 x 5/8”
Wing Nut, 1/4-20
Key
No.
Part No. Description
16 7214375
– 7331258
17
18
19
20 7155115 Cover, Brinewell
21 7325396 Rim
– 7331177
22
23
24 7310202 Brine Valve Assembly
25 7327568 Float, Stem & Guide Assembly
26 7139999 Drain Hose
27 – Cover Lock (for shipping only)
28 – Rim Insert (for shipping only)
¢
¢ Not illustrated.
á
á
á
á
á
7371127 Owner’s Manual
Brinewell Assembly
(including salt level decal)
Overflow Hose Adaptor Kit
(includes Key Nos. 17-19)
Adaptor Elbow
Grommet
Hose Clamp
Tank Neck Clamp Kit
(includes Key Nos. 22 & 23)
Clamp Section (2 req.)
Retainer Clip (2 req.)
To order repair parts, contact us at: info@northstarwater.com
Manufactured and warranted by
North Star Water Treatment Systems
1890 Woodlane Drive
Woodbury, MN 55125
25
Page 26
144
Valve Exploded View
102
100
103
104
139
138
137
136
135
134
133
143
142
141
Seal
Cross-section
140
Wear Strip
View
126
111
112
117
118
114
113
110
105
101
106
123
109
108
107
145
121
121
132
115
120
26
119
125
124
122
123
127
116
131130
129
128
Page 27
Valve Parts List
ey
K
No.
100
101
102 7224087 Screw, #8-32 x 1” (2 req.)
103 7231393 Motor Plate
104 0900857 Screw, #6-20 x 3/8” (3 req.)
105 7171250 Bearing
106
107
108
109
110
111
112
113
114
115
116
117 7174313 Bearing, Wave Washer
118 7185500 Rotor & Disc
119
120
121
122
Part No. Description
otor, Cam & Gear Kit, 1”
– 7373828
á
á
– 7331169
á
á
á
á
á
– 7185487 Seal Kit (includes Key Nos. 111-116)
á
á
á
á
á
á
– 7342712
á
á
7089306 Clip, 1”, single (4 req.)
7336428 Clip, 1”, pack of 20
7271204 Installation Adaptor, 1”, single (2 req.)
7336614 Installation Adaptor, 1”, pack of 10
M
(includes Key Nos. 100-102)
Motor
Cam & Gear
Drain Hose Adaptor Kit
(includes Key Nos. 106-110)
Clip, Drain
Hose Clamp
Drain Hose Adaptor
O-Ring, 15/16” x 1-3/16”
Flow Plug, 2.0 gpm
O-Ring, 5/8” x 13/16”
O-Ring, 1-1/8” x 1-1/2”
O-Ring, 4-1/2” x 4-7/8”
Rotor Seal
Seal
Seal, Nozzle & Venturi
Drain Plug Kit, 1”
(includes Key Nos. 115, 119 & 120)
Plug, Drain Seal
Spring
ey
K
No.
123
124
125
126 7309811 Wire Harness, Sensor
127 7081201 Retainer, Nozzle & Venturi
128 7171145 Valve Body
129 7342649 O-Ring, 1/4” x 3/8”, pack of 2
130 1202600 Nut - Ferrule
131 7081104 Housing, Nozzle & Venturi
132 7095030 Cone Screen
133 1148800 Flow Plug, .3 gpm
134
135 7084607 Flow Plug, .15 gpm
136 7146043 Screen
137 7167659 Screen Support
138
139 7199729 Cap
140 7175199 Wave Washer
141 7171161 Valve Cover
142 7342681 Screw, #10-14 x 2-5/8”, pack of 8
143 7305150 Switch
144 7140738 Screw, #4-24 x 3/4” (2 req.)
145 7214383
Part No. Description
7311127 O-Ring, 1-1/16” x 1-5/16”, single (4 req.)
7336410 O-Ring, 1-1/16” x 1-5/16”, pack of 20
Turbine & Support Assembly,
– 7290931
á
á
– 7257454
7114533 Nozzle & Venturi Gasket Kit
7204362 Gasket Only, single
7336486 Gasket Only, pack of 20
7170262 O-Ring, 1-1/8” x 1-3/8”, single
7336436 O-Ring, 1-1/8” x 1-3/8”, pack of 20
including 2 O-Rings (See Key No.
123) & 1 ea. of Key Nos. 124 & 125
Turbine Support & Shaft
Turbine
Nozzle & Venturi Assembly
(incl. Key Nos. 127, 129 & 131-139)
Bypass Valve Assembly, 1”,
including 2 ea. Clips & O-Rings
(See Key Nos. 121 & 123)
To order repair parts, contact us at: info@northstarwater.com
Manufactured and warranted by
North Star Water Treatment Systems
1890 Woodlane Drive
Woodbury, MN 55125
27
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