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EQUIPMENT INSTALLATION 

CONTINUED

Brine Line Connection

NOTE:   

It is recommended that separate brine lines be used 

for each tank.

The brine line from the brine tube connects to the valve. Be 

certain the connections are hand tightened. Make sure that 

the salt line is secure and free from any air leaks. Even a small 

leak may cause the brine line to drain out, and the system will 

not draw brine from the tank. This may also introduce air into 

the valve causing problems with valve operation. Ensure that 

plumbers tape is applied to the 3/8" NPT brine line connection 

(Figure 6 Regenerant Connection).

Regenerant Line 

Connection

Figure 6  Regenerant Connection

To install the brine line:
1.  Inside the brine tank, remove the cap from the large 

cylinder to gain access to the connection.

2.  Be sure the brass insert is in the end of the brine tubing. 

Insert the tubing through the opening in the tank.

3.  Push the tubing into the plastic nut. Slowly unscrew the nut 

until the tubing moves into the connection. The tubing will 

hit bottom.

Figure 7  

NOTE:   

Once the tubing has been pushed into the nut 

it cannot be pulled out. The nut will need to be 

removed. See Figure 8 for correct assembly.

4.  Hand tighten the nut until the connection is tight.

Figure 8  

Electrical Connection

WARNING:

  This valve and control are for dry location use 

only unless used with a Listed Class 2 power 

supply suitable for outdoor use.

The 764 Series control operates on a 12 volt alternating 

current power supply. This requires use of the supplied AC 

adapter. A variety of AC adapters are available from your 

supplier for different applications. They include:

AC Adapter

Input Voltage Application

Part Number

Standard 

wall-mount

120 V 60 Hz

UL listed 

for indoor 

installations

1000811

Outdoor 

rated

120 V 60 Hz

UL listed 

for outdoor 

installations

1235448

120 VAC Adapters

Make sure the power source matches the rating printed on the 

AC adapter. 

NOTE:   

The power source should be constant. Be certain 

the AC adapter is not on a switched outlet. Power 

interruptions longer than eight hours may cause the 

controller to lose the time setting. When power is 

restored, the time setting must then be re-entered.

NOTE:   

Do not connect power by plugging in the transformer 

at this time. Doing so may cause difficulty in properly 

placing the unit into operation.

CAUTION

 Plumbing cannot be used for electrical grounding 

when metal inlet and outlet piping is connected to 

a non-metal valve. 

Connect the inlet and outlet piping together using a 

grounding strap or clamp to establish continuity.

 

AUTOTROL

®

 Logix 764 Control Performa Cv Series Valves (273, 278) Service Manual 

 

5

Summary of Contents for AUTOTROL LOGIX 764

Page 1: ...AUTOTROL LOGIX 764 CONTROL PERFORMA CV SERIES VALVES 273 278 SERVICE MANUAL www pentairaqua com...

Page 2: ...grounding is maintained Mechanical Do not use petroleum based lubricants such as petroleum jelly oils or hydrocarbon based lubricants Use only 100 silicone lubricants All plastic connections should b...

Page 3: ...ity or water spray from below Examples are constant heavy mist near corrosive environment upwards spray from sprinkler CAUTION This unit is for dry location use only unless used with a Listed Class 2...

Page 4: ...e following suggestions Check with local authorities before installing a water conditioning system The unit should be above and not more than 20 6 1 m from the drain Connect an appropriate adapter fit...

Page 5: ...connection is tight Figure 8 Electrical Connection WARNING This valve and control are for dry location use only unless used with a Listed Class 2 power supply suitable for outdoor use The 764 Series...

Page 6: ...ut Main Motor Optical Sensor Connection Turbine Input No Salt Detector Chlorine Generator Connection Multi Single Tank Lockout Remote Regen Start Dry Contact Signal Input Connection Extension Cable Co...

Page 7: ...lve Discs One Piece Valve Disc Spring Optical Sensor Camshaft Motor Outlet Drain Inlet Backwash Drain Control Injector Screen Filter Control Module Mount 273 278 VALVE FEATURES Figure 13 273 278 Valve...

Page 8: ...nse cycle Water is directed to the regenerant tank at a controlled rate to create brine for the next regeneration SERVICE BACKWASH BRINE SLOW RINSE FAST RINSE From Regenerant Tank To Regenerant Tank B...

Page 9: ...s a standard 12 volt AC motor that works with either 50 Hz or 60 Hz The same motor is used worldwide and does not need to be changed for different power conditions Power 700 Series controllers are ava...

Page 10: ...ns the controller to normal operation Figure 17 NOTE In normal operation and during programming only a few of the icons will actually be displayed 1 This cursor is displayed when the days between rege...

Page 11: ...ontrol is powered up the display will show 255A 2 Use the or buttons to increment through the available selections Table 1 For the next steps you may want to remove the cover to watch the camshaft mov...

Page 12: ...e Salt Amount Time Day Regeneration Time Time Day Regeneration Time Buttons to Press Range 1 Resin Volume Select correct resin volume Cubic feet 0 25 to 3 00 2 Time of Day 12 hr Set to time of day Not...

Page 13: ...99 Minutes 0 to 200 Gallons 1 x 100 to 900 Control programmming is complete press or press press then or press press then or press press then or press press then or press press then or press press the...

Page 14: ...an be sent directly back to the treated water position from any regeneration cycle Press the UP and SET buttons for about five seconds until the hourglass icon begins flashing The control will now ski...

Page 15: ...Rinse C4 Standby Both tanks have now been purged of air The water supply valve can be fully opened 2 Press and hold the button for five seconds This will start the second regeneration Quick cycle as T...

Page 16: ...e controller is first plugged in it may display a flashing hourglass and the message Err 3 this means that the controller is rotating to the home position If the Err 2 is displayed check that the inco...

Page 17: ...o chlorine generator 1 Salt check only 2 Generate chlorine P14 Refill Rate 1 700 1 1 gpm x 100 P15 Draw Rate 1 700 1 1 gpm x 100 P16 Reserve Type not used for alternating mode 0 3 1 0 0 Variable reser...

Page 18: ...bs ft3 Under normal circumstances this setting will provide the correct system capacity This setting may be adjusted to change the exchange capacity see Table 4 Table 3 High Efficiency Exchange Capaci...

Page 19: ...ackwash 0 200 1 Min 10 Flow rate dictated by size of drain line flow controller C2 Regenerant Draw 0 200 1 Min See Notes Automatically calculated from resin volume and salt dosage settings C3 Slow Rin...

Page 20: ...Average usage for Monday in gallons or m3 0 131 070 gallons or 0 1 310 70 m3 H9 Average usage for Tuesday in gallons or m3 0 131 070 gallons or 0 1 310 70 m3 H10 Average usage for Wednesday in gallon...

Page 21: ...ate once Double Immediate Manual Regeneration Back to back manual regenerations are initiated by pressing and holding the REGEN button for three seconds while the control is in the regenerating mode A...

Page 22: ...ated sequentially the next time of regeneration regardless of how much water is used during that 24 hour period This feature is to help recover a severely exhausted bed See Table 8 P16 2 Immediate Reg...

Page 23: ...g back into one site To install control module Wire Clips Slots for Motor and Turbine Harness 1 Be sure the power is disconnected 2 Check model 3 Check routing of wires and plug them into the controll...

Page 24: ...haft numbers are visible in the hollow of the cup An arrow on the top plate points to the current marking The numbers represent regeneration cycles as follows C0 Treated water normal operation mode C1...

Page 25: ...top plate This switch is turned on off by a cam lobe on the camshaft Its function is to signal that the unit is in service or out of service regenerating Microswitches are available as kits from Pent...

Page 26: ...t to repair a bent spring 2 Position yourself on the spring side of the valve discs 3 Position the spring over the valve body close to final position The wide spring segments will be located at the wi...

Page 27: ...dure to engage the screws with the existing threads If the same threads are not used the holding power of the screw is lost Under pressure the valve can leak Screws that have the same diameter but hav...

Page 28: ...ose sold for commercial laundries adjust the dosage accordingly 1 Dosage Polystyrene resin 1 2 fluid ounce 35 5 mL per cubic foot Non resinous exchangers 0 8 fluid ounce 23 7 mL per cubic foot 2 Regen...

Page 29: ...between tank 1 and tank 2 controls Figure 21 outlines these standard features P4 BL BRN WHT YEL ORG P2 Flow Sensor Optical Sensor Motor 80 in 2017 mm P3 2 BLK GRN R Logix 764 control on Tank 1 R GRN...

Page 30: ...gix 764 control on Tank 1 Logix 764 control on Tank 2 BLK GRN RED BLK GRN RED BLK GRN RED BLK GRN Repeat for all remaining tanks Logix 764 control on Tank 3 Figure 23 NOTE Cable PN 3020228 sold separa...

Page 31: ...ASSEMBLY DIAGRAMS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 12 20 21 22 23 24 25 273 278 Exploded View Parts List AUTOTROL Logix 764 Control Performa Cv Series Valves 273 278 Service Manual 31...

Page 32: ...Lt Purple 9 inch tank 1035734 J Injector Lt Blue 10 inch tank 1035735 K Injector Pink 12 inch tank 1035737 M Injector Brown 14 inch tank 1035738 N Injector Green 16 inch tank 1035739 Q Injector Purpl...

Page 33: ...ASSEMBLY DIAGRAMS CONTINUED BYPASS BYPASS 1 1 1040930 1265 Bypass Item No QTY Part No Description 1 Bypass Valve AUTOTROL Logix 764 Control Performa Cv Series Valves 273 278 Service Manual 33...

Page 34: ...long PVC 255 Ry 4 Pipe Tube Adapter Nut 1 42 ID Universal 2 1265 Bypass w Install Kit No Adapters Single Pack 3019932 74 Manifold Kit 1 in PVC w No Bypass 2 Pipe Fitting Tee 1 in 2 Pipe Fitting Elbow...

Page 35: ...in the Logix controller ERR 4 is displayed If single tank system Verify system setting is programmed to 273 278 L Controller on tank 2 does not know the position of the camshaft Camshaft should be ro...

Page 36: ...power Defective motor Replace motor Contact dealer Control regenerates at wrong time of day Controller set incorrectly Correct time setting according to instructions Valve will not draw regenerant Low...

Page 37: ...ill Flush out foreign matter holding disc open by manually operating valve stem Air leak in regenerant line to air check Check all connections in regenerant line for leaks Refer to instructions Improp...

Page 38: ...Valve No 1 Open 2 Open 3 Closed 4 Closed 5 Closed 6 Open 7 Closed Backwash Position Brine Tank Mineral Tank Drain Inlet Outlet Hard Water Soft Water 5 4 1 3 2 6 7 Backwash Flow Control Valve No 1 Clos...

Page 39: ...ed 2 Open 3 Open 4 Closed 5 Closed 6 Open 7 Closed Refill Position Brine Tank Mineral Tank Drain Inlet Outlet Hard Water Soft Water 5 4 1 3 2 6 7 Valve No 1 Closed 2 Closed 3 Open 4 Open 5 Open 6 Clos...

Page 40: ...LWR6151 20 2 3 5 5 6 7 5 40 60 80 100 120 Injector J Light Blue For 10 inch Tanks TOTAL BRINE DRAW RINSE Gallons per Minute bar PSI 0 25 0 20 0 15 0 10 0 05 0 00 3 m hr 1 20 1 00 0 80 0 60 0 40 0 20...

Page 41: ...Flow Data 0 80 0 70 0 60 0 50 0 40 0 30 0 20 0 10 0 00 3 50 3 00 2 50 2 00 1 50 1 00 0 50 0 00 Gallons per Minute bar PSI m3 hr 20 40 60 80 100 120 Injector R Dark Grey For 21 inch Tanks TOTAL BRINE...

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Page 44: ...s and logos are the property of their respective owners Because we are continuously improving our products and services Pentair reserves the right to change specifications without prior notice Pentair...

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