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11

PROGRAMMING THE ELECTRONIC DEMAND TIMER, continued

"

SET WATER HARDNESS NUMBER

NOTE:

If a flashing 25 (factory default) and the word

HARDNESS

do not show in the display, press SELECT

until they do.

1.

Press the UP or DOWN button to set your water

hardness number in the display. DOWN moves the

display down to 1. UP moves the display up to 95.
NOTE: Each press of a button changes the display

by 1 between 1 and 25. Above 25, the display

changes 5 at a time; 25, 30, 35, etc. Holding a but-

ton in changes the numbers twice each second.

See the specified maximum hardness, page 4.

2.

When your water hardness number shows,

press SELECT to set.

You can get the grains per gallon (gpg) hardness of

your water supply from a water analysis laboratory,

or call and ask your local water department, if you

are on a municipal supply. If water contains iron, add

to the water hardness at a ratio of 5 grains for each

1 ppm of iron.

"

SET REGENERATION (STARTING) TIME

NOTE:

RECHARGE TIME

and a flashing 2:00 AM (factory default) should show in the display. This is a good

time for regeneration to start (over in about 2 hours) in most households because 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.

To change

this time, if desired,

do step 1.

1.

Press the UP or DOWN button to set the desired

regeneration start time.

Be sure to observe the AM or PM, as you did when

setting the time of day.

NOTE:

Each press of the buttons changes the time

by one hour. Holding the buttons in changes the

time twice each second.

2.

Press the SELECT button once more.

The display shows the present time of day.

The special

features

of your timer are explained on page 18.

TO COMPLETE THE INSTALLATION, GO TO THE SANITIZING

PROCEDURES ON PAGE 12.

Summary of Contents for NSC25ED

Page 1: ...TIONS WHEN INSTALLING OPERATING AND MAINTAINING YOUR CONDITIONER OR WHEN SETTING THE TIMER CALL TOLL FREE 1 800 972 0135 IN CANADA CALL 1 800 796 6784 Designed Engineered Assembled in the U S A System...

Page 2: ...eplace the part and return it to you at no cost if our repair depart ment determines it to be defective under the terms of the warranty This warranty gives you specific legal rights and you may have o...

Page 3: ...e them TABLE OF CONTENTS PAGE NO WARRANTY SAFETY GUIDES 2 SPECIFICATIONS AND PERFORMANCE CLAIMS 4 BEFORE STARTING INSTALLATION 5 TYPICAL INSTALLATION ILLUSTRATION 6 INSTALLATION STEPS 7 9 PROGRAMMING...

Page 4: ...NST25ED RATED CAPACITY grains lbs salt dose 10 500 2 1 22 200 6 6 26 600 11 2 RATED EFFICIENCY grains lb lbs salt dose 5 000 2 1 WATER USED DURING REGENERATION MINIMUM SALT DOSE gallons 3 0 1 000 gra...

Page 5: ...OTHER MATERIALS YOU WILL NEED GIn and out pipes to the softenermust be at least 3 4 size Some local codes require a minimum of 1 pipe size To plumb with 1 pipes buy adaptors to fit the 1 pipe threads...

Page 6: ...single or 3 valve bypass INLET valve OUTLET valve BYPASS valve D for soft water SERVICE Open the inlet and outlet valves Close the bypass valve D for hard water BYPASS Close the inlet and outlet valve...

Page 7: ...e barbed end of the hose adaptor elbow into the grommet 3 MOVE THE SOFTENER ASSEMBLY CABINET MODELS OR RESIN TANK TWO TANK INTO INSTALLATION POSITION Be sure the installation surface is level and smoo...

Page 8: ...codes IMPORTANT Use high quality thick wall hose that will not easily kink or collapse The water softener will not work if water cannot exit this hose during re generations Tie or wire the hose in pla...

Page 9: ...close the bypass valve and open the outlet valve SLOWLY open the inlet valve pausing several times to allow the softener to pressurize slowly E After about three minutes open a HOT water faucet for o...

Page 10: ...pages 19 and 20 D A beeper sounds while pressing buttons for timer programming One beep signals a change in the timer display Repeated beeps means the timer will not accept a change from the button y...

Page 11: ...nicipal supply If water contains iron add to the water hardness at a ratio of 5 grains for each 1 ppm of iron SET REGENERATION STARTING TIME NOTE RECHARGE TIME and a flashing 2 00 AM factory default s...

Page 12: ...tize it Any air remaining in the unit is purged to the drain 4 After the recharge has completed fully open a cold water faucet downstream from the softener and allow 50 gallons of water to pass throug...

Page 13: ...to five aspirin tablets Water hardness varies greatly across the country It generally contains from 3 to 100 gpg Hard water affects living in general Hardness min erals combine with soap to make a soa...

Page 14: ...olding metals 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 cleani...

Page 15: ...UT 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 bri...

Page 16: ...following is the best way to check for a salt bridge Salt should be loose all the way to the bottom of the tank Take a broom handle or like tool and careful ly push it down into the salt working it up...

Page 17: ...NG INSTALL WITH NUMBERED SIDE UP CONCAVE SIDE DOWN Cap O ring Seal Screen Support Screen Nozzle Venturi Gasket Flow Plug HVDC Nozzle Venturi Housing Screen IMPORTANT Be sure small holes in the gasket...

Page 18: ...ation touch the same but ton once more VACATION NOTE North Star Demand water softeners regenerate only while water is used and softening capacity must be re stored For this reason the softener will no...

Page 19: ...efect and check the water meter ERROR CODE DISPLAYED Err 01 Err 03 Err 04 Err 05 POSSIBLE DEFECT wiring harness or connection to switch position switch motor inop erative valve defect causing high tor...

Page 20: ...tch operation CORRECT SWITCH DISPLAYS VALVE CYCLE STATUS Valve in service fill brining backwash or fast rinse position P Valve rotating from one position to another C While in this diagnostic screen t...

Page 21: ...for an ob structed nozzle venturi fill flow plug brine tubing or brine valve riser pipe CAM MOTOR position markers 2 After observing fill press the RECHARGE button to move the softener into brining A...

Page 22: ...ne OUT GND 5 WATER FLOW THROUGH VALVE SERVICE CYCLE FILL CYCLE To Valve Outlet soft water resin bed resin bed bottom distributor resin tank top distributor from Valve Inlet hard water To Valve Outlet...

Page 23: ...plug bypass hard water to valve outlet soft water to valve outlet drain from Valve Inlet hard water from Valve Inlet hard water BRINING and BRINE RINSE CYCLES drain brine from salt stor age tank nozzl...

Page 24: ...24 REPAIR PARTS 3 4 9 10 11 14 16 12 13 26 Valve Assembly see pages 26 27 1 2 5 6 7 8 NST NSC 27 15 18 20 19 21 22 23 24 25 17...

Page 25: ...r decal below z 7267344 Decal Faceplate 14 7309358 Repl Electronic Control Board PWA 15 7337482 Power Supply 28V DC KEY NO PART NO DESCRIPTION 16 7192785 Salt Hole Cover NSC model 7180437 Brine Tank C...

Page 26: ...VALVE REPAIR PARTS 50 51 52 54 53 55 59 58 cross section view seal wear strip 56 57 60 61 62 63 64 66 65 68 67 69 70 71 72 74 73 75 76 77 78 79 82 83 81 80 84 85 86 87 88 89 90 94 95 91 92 93 96 91 9...

Page 27: ...Nozzle Venturi 71 7082053 Valve Body 72 7129889 Spring 73 7092642 Plug Drain Seal KEY NO PART NO DESCRIPTION 7129716 Seal Kit includes Key Nos 74 79 74 Seal Nozzle Venturi 75 O ring 3 8 x 9 16 76 Roto...

Page 28: ...S CITY STATE ZIP CODE CONDITIONER MODEL NUMBER SERIAL NUMBER DATE PURCHASED DATE PART FAILED PARTS RETURN TAG North Star 1890 Woodlane Drive Woodbury MN 55125 CUSTOMER S NAME STREET ADDRESS CITY STATE...

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