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5  

Before Starting Installation 

Tools, Pipe, and Fittings, Other Materials 

How Your Filter Works 

 

Backwashing of the filter takes place during the night while you sleep. First, backwashing 
cleans the filter bed, then a rapid rinse clears any remaining particulates from the water.  All 

functions are performed automatically.  
 

Your automatic filter can be set to operate according to your needs by programming the ap-

propriate settings.  On the days your filter regenerates, the operating cycles will be auto-
matically performed.  In the service position, filtered water is supplied for household use. 

This valve is controlled with simple, user-friendly electronics displayed on a LCD screen.  
The main page displays the current time and the remaining gallons in meter mode or the 

remaining days in calendar clock mode. 

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Pliers 



Screwdriver 

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Teflon tape 

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Razor knife 

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Two adjustable wrenches 

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Additional tools may be required if modifi-

cation to home plumbing is required. 



Plastic inlet and outlet fittings are included 

with the filter.  To maintain full valve flow, 

3/4” or 1” pipes to and from the filter fit-
tings are recommended. You should main-

tain the same, or larger, pipe size as the 
water supply pipe, up to the softener inlet 

and outlet. 

Summary of Contents for 765 Series

Page 1: ...EGIN INSTALLATION READ THIS ENTIRE MANUAL THEN OBTAIN ALL THE MATERIALS AND TOOLS 1 Avoid pinched o rings during installa on by applying provided with install kit NSF cer fied lubri cant to all seals 2 This system is not intended for trea ng water that is microbiologically unsafe or of unknown quality without adequate disinfec on before or a er the system New Style Parallel Tank Connector ...

Page 2: ...uded transformer Transformer must be plugged into an in door 120 volt grounded outlet only WARNING This system is not intend ed for treating water that is microbiologi cally unsafe or of unknown quality without adequate disinfection before or after the system For your safety the information in this manual must be followed to minimize the risk of electric shock property damage or personal injury Be...

Page 3: ... Excessive sun or heat may cause distortion or other damage to non metallic parts Properly ground to conform with all gov erning codes and ordinances Use only lead free solder and flux for all sweat solder connections as required by state and federal codes Maximum allowable inlet water pressure is 125 psi If daytime pressure is over 80 psi night time pressure may exceed the maximum Use a pressure ...

Page 4: ... 10 x 54 3 4 1 164 Sediment Turbidity Mul Media Filters HT 765MM 75 0 75 4 0 5 0 3 5 15 20 µ 8 x 44 3 4 1 79 HT 765MM 100 1 0 5 0 7 0 4 0 15 20 µ 9 x 48 3 4 1 118 HT 765MM 150 1 5 7 0 10 0 7 0 15 20 µ 10 x 54 3 4 1 144 Nexsand Turbidity Filters HT 765NEX 75 0 75 4 0 6 0 3 5 3 5 µ 8 x 44 3 4 1 90 HT 765NEX 100 1 00 5 0 8 0 4 0 3 5 µ 9 x 48 3 4 1 135 HT 765NEX 150 1 50 8 0 10 0 5 0 3 5 µ 10 x 54 3 4...

Page 5: ...performed In the service position filtered water is supplied for household use This valve is controlled with simple user friendly electronics displayed on a LCD screen The main page displays the current time and the remaining gallons in meter mode or the remaining days in calendar clock mode Pliers Screwdriver Teflon tape Razor knife Two adjustable wrenches Additional tools may be required if modi...

Page 6: ...mperature of water passing through the filter must be less than 100 deg F Do not install the filter in a place where it could freeze Damage caused by freez ing is not covered by the warranty Put the filter in a place water damage is least likely to occur if a leak develops The manufacturer will not repair or pay for wa ter damage A 120 volt electric outlet to plug the in cluded transformer into is...

Page 7: ...r pump must be capable of providing the backwash flow rates indicated on page 4 Check Your Pumping Rate Two water system conditions must be checked carefully to avoid unsatisfactory operation or equipment damage 1 Minimum water pressure required at the filter tank inlet is 20 psi 2 Measuring the pumping rate of your pump With the pressure tank full draw water into a container of known volume and m...

Page 8: ...irections OUT IN New Style Parallel Tank Connector The design of the parallel tank adaptor used in our dual tank products i e BIF BAF HTO HEDP etc has been redeveloped This new shorter version will also change the ...

Page 9: ...tube and flows upwards in the tank 2 regenerating the media bed It then travels to tank 1 through the cen ter of the distribution tube and flows upwards in tank 1 and then out to the drain Settle Rinse During the settle rinse cycle water enters tank 1 down through the bed and up the through the center of the distribution tube It then travels to tank 2 down through the bed and up the through the ce...

Page 10: ...ts when soldering pipes that are connected to the valve Failure to do this could cause damage to the valve 5 Connect the drain hose 10 ft included to the valve and secure it with a hose clamp also included Run the drain hose to the nearest laundry tub or drain pipe This can be ran up overhead or down along the floor If running the drain line more than 20 ft overhead it is recommended to increase t...

Page 11: ...11 Filter Installation ...

Page 12: ... or until the water is clear 8 The valve will automatically advance to the SERVICE position after the RINSE cycle is complete Open the outlet valve on the bypass then open the nearest treated water fau cet and allow the water to run until clear close the tap and replace the faucet screen 9 Program time date and number of days between regenerations into controller using Pro gramming Instructions No...

Page 13: ...Taste Odour filters Use this ta ble as a guide since individual circumstances will require more or less frequent regenera tions This can be adjusted by the home owner to suite their individual needs with fre quencies available from 1 99 days To prevent bacterial build up in the media activated carbon filters should not exceed 6 days between backwashes Sediment Mild Average Extreme Taste Odor Mild ...

Page 14: ... to a power failure it will queue a regeneration at the next regeneration time once power is restored Main Display When power is supplied to the control the screen will display TIME OF DAY GALLONS RE MAINING and DEALER NAME and PHONE NUMBER The brine tank is equipped with a safety float which prevents your brine tank from overfill ing as a result of a malfunction such as a power failure Safety Flo...

Page 15: ... is often the best way to determine when the filter media will require replacement 3 Periodically check that the drain line is clear and free from any obstructions AC Taste and Odor Filter under normal operating conditions the effective life of the filter media is approximately one to three years depending on the water quality after which taste and odor problems may return When this happens contac...

Page 16: ... off the top of the tank Finally place the control valve on the tank and on to the distributor tube Tighten the control valve on to the tank Connect or reconnect the inlet and outlet and drain The control valve should be in the backwash position Slowly open the inlet valve wa ter supply and slowly fill the filter tank until water appears at the open drain line Return the control to the service pos...

Page 17: ...7 Main Repair Parts Replacing Drain Line Flow Control DLFC 1 Remove the red clip that secures the drain line elbow 2 Remove the BLFC washer from the elbow fitting 3 Reassemble using the reverse procedure ...

Page 18: ...18 A A A B D F E A C Main Repair Parts Connectors ...

Page 19: ...19 Control Valve Exploded View ...

Page 20: ...20 Control Valve Parts List ...

Page 21: ...21 Power Head Exploded View ...

Page 22: ...22 Power Head Parts List ...

Page 23: ...23 Trouble Shooting ...

Page 24: ...ude nor is it intended to in clude filter media beds as varied water quality and regular maintenance are required for proper performance General Conditions Damage to any part of this water conditioner as a result of misuse misapplication neglect alteration accident installation or operation contrary to our printed instructions damage to ion exchange resin and seals caused by chlorine chloramines i...

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