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2-3

Step 14

Set TIME OF DAY (refer to appropriate HOW TO SET TIME CLOCK REGENERATION CONTROL, Section 3). When shifting to daylight 
saving time (and back), you may wish to adjust TIME OF DAY accordingly. 

IMPORTANT NOTE

TIME OF REGENERATION is pre-set for 2:00 a.m. because at this time water consumption is generally minimal (a built-in hard water 
bypass does, however, permit water to be drawn during regeneration). Should the application require 

regular

 use of water during 

the 2:00 to 3:00 a.m. regeneration period, or if other water treatment equipment is also set for 2:00 a.m. regeneration, the TIME OF 
REGENERATION will need changing. To change, adjust time of day on 24-HOUR GEAR ahead or behind actual time of day. For 
example, if 1:00 a.m. regeneration is desired and actual time of day is 10:00 a.m., 

advance

 24-HOUR GEAR one hour to 11:00 a.m.; 

or, should 3:00 a.m. regeneration be desired, set gear

 back

 one hour to 9:00 a.m. 

Step 15

Before loading salt, using a pail or garden hose, add enough water to brine tank to cover the air check in the brine well by approx. one 
(1) inch. Then add initial salt fi ll to brine tank, and one cup full of unscented laundry bleach to brine well.

Step 16

RESTORE FUEL SUPPLY OR POWER TO WATER HEATER. Put softener through complete regeneration to sanitize the system before 
use (Refer to HOW TO SET TIME CLOCK REGENERATION CONTROL for instructions on manual regeneration). 

Installation is now complete, and the water softener is now ready for service! 

SECTION 4: SERVICE INSTRUCTIONS 

4-1

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P

1. Hard water (unit not using salt; liquid 

level in brine tank NOT too high)

A. Electrical service to unit interrupted

A. Assure permanent electrical service (check fuse, plug, 

pull chain, or switch)

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D. Safety brine valve not opening

D. Replace safety brine valve

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2. Hard water (unit using salt; liquid level 

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(See HOW TO SET TIMER)

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3. Liquid level in brine tank TOO high

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B

C. Injector or Injector screen plugged

C. Clean injector and screen

D. Drain line frozen, plugged or restricted

D. Free drain

E. Salt “mushed” or sand from salt plugging bottom 

of brine tank

E. Clean out brine tank (see instructions)

F. Incorrect brine line fl ow control (BLFC)

F. Replace with correct fl ow control (see specifi cations)

4. System regenerates at wrong time 

of day

A. Power outage 

.

A

.

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c

o

 Reset timer

5. Water continuously fl ows to drain

A. Foreign material in control valve

A. Remove piston assembly and inspect bore: remove 

foreign material and check control in various regenera-
tion positions

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C. Control valve jammed in brine or backwash 

position

C. Replace piston, seals and spacers

6. Water tastes salty

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B. Distributor tube 

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7. White spots on glassware and dark 

surfaces

A. Sodium residual resulting from water having very 

high hardness or total dissolved solids (TDS)

A. Installation of additional water treatment equipment 

such as reverse osmosis or demineralization

8. Low water pressure (low fl ow rate)

A. Iron build-up in line to water conditioner

A. Clean line to water conditioner

B. Iron build-up in water conditioner

B. Clean control and add Iron-X Mineral Cleaner to resin 

bed: increase frequency of regeneration

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9. “Rotten egg” smell (from hot water only)

A. Magnesium rod in water heater

A. Replace with aluminum rod or remove

10. “Rotten egg” smell (from both hot and 

cold water

A. Hydrogen sulfi de (“sulfur”) in water supply

A. Install Sul-X Sulfur Reduction System

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well just before regeneration as frequently as neces-
sary

11 Loss of resin through drain

-

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A

 .

A

trol: check for dry well condition

B. Incorrect Drain Line Flow Control (DLFC).

B. Replace with correct DLFC.

C. Unit regenerating with cold water.

C. Reinstall so unit uses hot water for regeneration.

Summary of Contents for HWS Series

Page 1: ...41 Fax 203 238 8701 www 3Mfoodservice com www 3Mpurification com 3M is a trademark of 3M Company 2012 3M Company All rights reserved IN303 0912B Please recycle Printed in U S A INSTALLATION AND OPERATING INSTRUCTIONS HWS SERIES HOT WATER SOFTENERS MODELS HWS050 HWS100 Installer please leave with homeowner ...

Page 2: ...ecipitation To reduce the risk associated with property damage due to plugged water lines Pay particular attention to correct orientation of control valve Water flow should match arrow on control valve The Inlet and Outlet of other water treatment equipment products will vary depending on the control valve brand used IMPORTANT NOTES Failure to follow instructions may result in leakage and will voi...

Page 3: ...G DATA 6 PARTS 7 MAINTENANCE REPLENISHMENT OF SALT SUPPLY The salt storage capacity of the brine tank is approximately 280 lbs 127 kg During each regeneration a specific amount of salt is consumed thus requiring its periodic replenishment the frequency is dependent on the regeneration schedule Always replenish salt before the supply is exhausted to assure a continuous supply of softened water TYPE...

Page 4: ...ng equipment Figure 1 4 Temperatures above 150 F 66 C will damage the softener and void the factory warranty 5 Do NOT install the softener in a location where freezing temperatures occur Freezing may cause permanent damage and will also void the factory warranty 6 Allow sufficient space around the unit for easy servicing 7 Provide a non switched 110V 60Hz power source for the control Reference tra...

Page 5: ...vacuum prevention Do not use torches or other heat sources near plastic plumbing as damage may occur Take care when using pliers or pipe wrenches to tighten plastic fittings as damage may occur On plastic fittings use thread sealing tape only Never use pipe sealant or pipe dope on plastic fittings as damage may occur To reduce the risk associated with property damage due to plugged water lines Pay...

Page 6: ...tric power to water heater Do not use torches or other heat sources near plastic plumb ing as damage may occur Take care when using pliers or pipe wrenches to tighten plas tic fittings as damage may occur On plastic fittings use thread sealing tape only Never use pipe sealant or pipe dope on plastic fittings as damage may occur To reduce the risk associated with property damage due to plugged wate...

Page 7: ...reset for the most efficient salt use and minimum water consumption used for regeneration as little as 50 gallons REGENERATION FREQUENCY SCHEDULES are designed for use with factory regeneration settings listed in SPECIFICATIONS AND OPERATING DATA Section 5 The control valve design permits adjustment of the salt dosage This adjustment may be necessary when unusual operating condi tions exist such a...

Page 8: ...ER t i n u l l a t s n i e R E s d r a w k c a b d e l l a t s n i t i n U E t i n u r e g r a l h t i w e c a l p e R F d e z i s r e d n u t i n U F 3 Liquid level in brine tank TOO high e v l a v e n i r b e c a l p e R A g n i s o l c t o n e v l a v e n i r B A r e m i t t e s e R B h g i h o o t g n i t t e s t l a S B C Injector or Injector screen plugged C Clean injector and screen D Drain...

Page 9: ...20 1 2 3 4 4 6 6 6 12 12 25 2 3 4 4 6 6 12 12 12 12 30 2 3 4 6 6 12 12 12 NR NR 35 2 3 6 6 12 12 12 NR NR NR 40 2 4 6 6 12 12 NR NR NR NR NR Not Recommended Gallons Per Day 50 100 150 200 250 300 350 400 450 500 HARDNESS GPG 5 1 1 1 1 1 1 2 2 2 2 10 1 1 1 2 2 2 2 3 3 3 15 1 1 2 2 3 3 3 4 4 4 20 1 2 2 3 3 4 4 4 6 6 25 1 2 3 3 4 4 6 6 6 6 30 1 2 3 4 4 6 6 6 12 12 35 2 2 3 4 6 6 6 12 12 12 40 2 3 4 4...

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