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 Copyright 2000, 1999, 1997 Osmonics, Inc.

Printed in the USA   P/N 1017933 Rev. C

Problem

Possible Cause

Solution

15. Brine tank overflow.

a. Brine valve disc 1 held open.

b. Valve disc 2 not closed during brine 

draw, causing brine refill.

c. Air leak in brine line to air check.

d. Salt setting too high.

a. Manually operate valve stem to flush 

out foreign matter holding disc open.

b. Manually operate valve stem to flush 

out foreign matter holding disc open.

c. Check all connections in brine line for 

leaks.

d. Set in new values. Refer to 

Programming section in this manual.

16. System using more or 

less salt than salt 
setting.

a. Inaccurate setting.

b. Foreign matter in salt controller 

causing incorrect flow rate.

c. Defective circuit board.

a. Correct salt setting. Refer to the 

Programming section in this manual.

b. Manually position control to BRINE/

SLOW RINSE to clean controller.

c. Replace control.

17. Intermittent or irregular 

brine draw.

a. Low water pressure.

b. Defective injector !

a. Increase water pressure (20 psi at 

conditioner).

b. Replace both injector and injector cap.

18. No conditioned water 

after regeneration.

a. Unit did not regenerate.

b. No salt in brine tank.

c. Plugged injector !

d. Air check valve closed prematurely.

a. Check for power.

b. Add salt to brine tank.

c. Remove injector and flush it and 

injector screen.

d. Put control momentarily into REFILL to 

free air check. Replace or repair air 
check if needed. Refer to instructions.

19. Control backwashes at 

excessively low or high 
rate.

a. Incorrect backwash controller !

b. Foreign matter affecting controller 

operation !

a. Replace with correct size controller.

b. Remove and clean controller and ball.

20. Flowing or dripping 

water at drain line or 
brine line after 
regeneration.

a. Drain valve (5 or 6) or brine valve (1) 

held open by foreign matter.

b. Weak valve stem return spring on 

top plate.

c. Resin in valve.

a. Manually operate valve stem to flush 

out foreign matter holding disc open.

b. Replace spring.

c. Clean valve and backwash control.

21. Hard water leakage 

during service.

a. Improper regeneration.

b. Leaking of bypass valve !

c. O-ring around riser tube 

damaged !

a. Repeat regeneration making sure that 

the correct salt dosage is used.

b. Replace O-ring.

c. Replace O-ring.

Table 6 - Troubleshooting Procedures

Summary of Contents for Series 255

Page 1: ...Water Conditioning Control System Dealer Installation Operation and Maintenance Manual Series 255 Valve 960 Control...

Page 2: ...on Service 14 Removing the Control Preventive Maintenance 15 Injector Screen and Injector Water Meter Disinfection of Water Conditioners 16 Sodium Hypochlorite 5 25 Calcium Hypochlorite Specifications...

Page 3: ...ons include starting a regeneration only at a specific time of day or having an immediate regeneration when the capacity is exhausted The control can also have a fixed reserve which is a percentage of...

Page 4: ...Five cycle operation provides for downflow conditioned water upflow backwash downflow brining and slow rinse downflow fast rinse and refill of the brine tank Valve discs are held closed by water press...

Page 5: ...water heater Water heaters can transmit heat back down the cold water pipe into the control valve Hot water can severely damage the conditioner A 10 foot 3 m total pipe run including bends elbows etc...

Page 6: ...into the tank and tighten with the plastic thumb nut and gasket as illustrated in Figure 6 3 Attach a length of 1 2 inch 1 3 cm tubing not supplied to the fitting and run to the drain Figure 6 Overflo...

Page 7: ...the Control The control has default values for most parameters that were set at the factory but there are key items that need to be entered at the time of installation Time of Day Time of Regeneratio...

Page 8: ...and the control accepts the new setting After approximately 30 seconds the control starts alternating the display between Time of Day and Capacity Note If a beep sounds the new setting is not accepted...

Page 9: ...s Parameter Range of Values Minimum Increments Default Units of Measure Notes Name Description P1 Time of day AM or PM 1 00 to 12 59 00 00 to 23 59 1 None Hour minute Range depends on value selected f...

Page 10: ...and the far right number on the display starts flashing If you want to change this number press the up arrow button or the down arrow button To skip the number without changing press the left arrow bu...

Page 11: ...er for a 12 hour clock or enter 1 for a 24 hour clock P14 Calendar override 0 to 30 1 0 Days 0 no calendar override Skip this parameter for no calendar override or enter a value P15 Reserve type 0 to...

Page 12: ...e two settings can only be viewed when the control is in the Level II mode The settings will be skipped when the control is in the Level I mode When Parameter 18 is set to zero the Salt Amount and Cap...

Page 13: ...options for this control fixed reserve and historical water usage pattern They are selected with Parameter P15 Fixed reserve When the fixed reserve is selected the control multiplies the maximum syste...

Page 14: ...g straight up This occurs when the indicator knob is rotated to the refill position Press down on the back of the camshaft to disengage it from the rear hoop of the top plate Figure 12 Slide the camsh...

Page 15: ...crew and remove the injector screen and injector cap 5 Clean screen with a fine brush Flush with water until clean 6 Using a needle nose pliers pull the injector straight out 7 Flush water into the in...

Page 16: ...to treat potable water In addition a conditioner can become fouled with organic matter during normal usage or with bacteria from the water supply Periodic disinfection is recommended for all condition...

Page 17: ...let outlet 3 8 inch BSPT drain 1 inch BSPT inlet outlet 1 2 inch BSPT drain Optional Bypass Valve 3 4 inch 19 1 mm or 1 inch 25 4 mm copper tailpiece 1 2 inch NPT male drain Valve Module Tank Adapter...

Page 18: ...18 Pressure Graphs Tested with 3 4 inch Brass Manifold Bar Bar Bar...

Page 19: ...19 Control Valving Identification Flow Diagrams Brine 1 Inlet 2 Bypass 4 Outlet 3 Rinse Drain 5 Backwash Drain 6 Valve Disc Operation...

Page 20: ...20...

Page 21: ......

Page 22: ...Ring 3 4 x 1 x 1 8 EP 1 6 Drain Control Assembly with O Rings 1 14 1031402 Locking Bar English Language 1 1034162 No 6 for 6 inch Diameter Tank 15 1006093 Screw No 8 x 9 16 inch 1 1000209 No 7 for 7 i...

Page 23: ...23 Meter Adapter Bypass Valve Piping Boss and Wall Mount Transformer Inlet Outlet Drain...

Page 24: ...1 1040280 1 inch NPT Noryl 1001613 3 4 inch CPVC Tube Adapter Kit 1 1040283 3 4 inch BSPT Noryl 1001614 1 inch CPVC Tube Adapter Kit 1 1040284 1 inch BSPT Noryl 1001615 25 mm CPVC Tube Adapter Kit 1 2...

Page 25: ...ve bypass into the bypass position and open the backwash drain valve the sixth valve back from the control with a screwdriver see Figure 11 Restore system water pressure when the service work is compl...

Page 26: ...e meter probe e Defective circuit board a Shift bypass valve into service position b Fully insert probe into meter housing c Remove meter housing free up turbine and flush with clean water Turbine sho...

Page 27: ...ased f Restricted meter turbine rotation due to foreign material in meter housing g Excessive water usage below 1 5 gallon per minute a Repeat regeneration making certain that correct salt dosage is u...

Page 28: ...Replace both injector and injector cap 18 No conditioned water after regeneration a Unit did not regenerate b No salt in brine tank c Plugged injector d Air check valve closed prematurely a Check for...

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