Logix 764 Operation Manual
Models: 255
Twin Alternating Twin Parallel Single with Remote
Regeneration Start
Lockout
2
Table of Contents
3
Safety Information
This water conditioner???s control valve conforms to UL/CE Standards. Generic valves were tested and certified for compliance as verified by the agency listing.
???Please review the entire Installation and Operation Manual before installing the water conditioning system.
???As with all plumbing projects, it is recommended that a trained professional water treatment dealer install the water conditioning system. Please follow all local plumbing codes for installing this water conditioning system.
???This system will not make microbiologically unsafe water safe. Water that is unsafe must be treated separately from this conditioner.
???This water conditioning system is to be used only for potable water.
???Inspect the water conditioning system for carrier shortage or shipping damage before beginning installation.
???Use only
???Use caution when installing soldered metal piping near the water conditioning system. Heat can adversely affect the plastic control valve and bypass valve.
???All plastic connections should be hand tightened. Teflona tape may be used on connections that do not use an
???Do not use
???Use only the power transformer supplied with this water conditioning system.
???All electrical connections must be completed according to local codes.
???The power outlet must be grounded
???Install an appropriate grounding strap across the inlet and outlet piping of the water conditioning system to ensure that a proper ground is maintained.
???To disconnect power, unplug the AC adapter from its power source.
???Observe drain line requirements.
???Do not support the weight of the system on the control valve fittings, plumbing, or the bypass.
a. Teflon is a trademark of E. I. duPont de Nemours.
???Do not allow this water conditioning system to freeze. Damage from freezing will void this water conditioning system???s warranty.
???Operating ambient temperature: 34?? to 120??F (1?? to 49??C).
???Operating water temperature: 34?? to 100??F (1?? to 38??C).
???Operating water pressure range : 20 to 120 psi (1.38 to 8.27 bar). In Canada the acceptable operating water pressure range is 20 to 100 psi (1.38 to 6.89 bar).
???Observe all warnings that appear in this manual.
???Keep the media tank in the upright position. Do not turn upside down or drop. Turning the tank upside down or laying the tank on its side can cause media to enter the valve.
???Use only regenerants designed for water conditioning. Do not use ice melting salt, block salt or rock salt.
4
This installation manual is designed to guide the installer through the process of installing and starting water conditioning systems featuring the Logix 764 controller.
This manual is a reference and will not include every system installation situation. The person installing this equipment should have:
???Training in the 764 series control and the 255 valve.
???Knowledge of water conditioning and how to determine proper control settings.
???Adequate plumbing skills.
WARNING: Failure to follow this instruction can result in personal injury or damage to the equipment.
Note: Helpful hint to simplify procedure.
The Logix 764 control can be installed on several type valves that can have twin alternating, twin parallel or single tank configuration. The section on Logix 764 start- up provides a simple explanation of the valve types that are
Optical Sensor
Control Module
Figure 2 764 Controller Identification
5
Figure 3 Remote
Figure 4 Twin Sensor Cable
Figure 5 Twin Cable Extension
Location Selection
Location of a water conditioning system is important. The following conditions are required:
???Level platform or floor.
???Room to access equipment for maintenance and adding regenerant (salt) to tank.
???Ambient temperatures over 34oF (1oC) and below 120oF (49oC).
???Water pressure below 120 psi (8.27 bar) and above 25 psi (1.7 bar).
???In Canada the water pressure must be below 100 psi (6.89 bar).
???Constant electrical supply to operate the controller.
???Total minimum pipe run to water heater of ten feet (three meters) to prevent backup of hot water into system.
???Local drain for discharge as close as possible.
???Water line connections with shutoff or bypass valves.
???Must meet any local and state codes for site of installation.
???Valve is designed for minor plumbing misalignments. Do not support weight of system on the plumbing.
???Be sure all soldered pipes are fully cooled before attaching plastic valve to the plumbing.
Outdoor Locations
When the water conditioning system is installed outdoors, several items must be considered.
???Moisture ??? The valve and control are rated for NEMA 3 locations. Falling water should not affect performance. The system is not designed to withstand extreme humidity or water spray from below. Examples are: constant heavy mist, near corrosive environment, or upwards spray from sprinkler.
Caution: This unit is for dry location use only unless used with a Listed Class 2 power supply suitable for outdoor use.
???Direct Sunlight ??? The materials used will fade or discolor over time in direct sunlight. The integrity of the materials will not degrade to cause system failures. If it is necessary to locate the conditioner in direct sunlight, an outdoor cover (PN 1267811) over the valve and control is necessary. Valve skirts
(PN 1267808) are available if further protection is required.
???Temperature ??? Extreme hot or cold temperatures will cause damage to the valve or control. Freezing temperatures will freeze the water in the valve. This will cause physical damage to the internal parts as well as the plumbing and conditioning resin. High temperatures will affect the control. The display may become unreadable but the control should continue to function. When the temperature returns to normal operating limits the display will
???Insects ??? The control and valve have been designed to keep all but the smallest insects out of the critical areas. Any holes in the top plate can be covered with duct tape. The top cover should be installed securely in place.
???Wind ??? The cover, when properly installed on the valve, is designed to withstand a 30 mph (48 Kph).
6
Unconditioned
water in
Conditioned
water out
Figure 6 Typical Plumbing for Twin Tank Systems.
7
Unit in Service
Unit in Bypass
Figure 7
Installation
All plumbing must conform to local codes. The two tanks should be plumbed to an interconnecting manifold, Figure 6. It is highly recommended that separate brine lines be used for each tank. It is critical for the resin, resin volume, inlet piping, etc. to be identical for both tanks.
WARNING: Do not use tools to tighten plastic fittings. Over time, stress may break the connections. Hand tighten the nuts.
WARNING: Do not use petroleum grease on gaskets when connecting bypass plumbing. Use only 100% silicone grease products when installing any Autotrol brand valve.
WARNING: The inlet water must be connected to the inlet port of the valve. When replacing non- Autotrol valves, the inlet and outlet may be reversed. Ensure that the plumbing is not installed in the oppposite order. Tank media may be pushed into the valve.
WARNING:Filter media may need to be properly conditioned before the filter is placed into full operation. Consult the original equipment manufacturer for proper procedure.
Location Selection
The following considerations must be taken into account when selecting the location for the water conditioning system.
???Locate the system as close to a drain as possible.
???If supplementary water treating equipment is required, make sure that adequate additional space is available. Locate the brine tank in an accessible place so that salt can be easily added.
???Do not install any system with less than 10 feet
(3 m) of piping between the outlet of the conditioners and the inlet of the water heater. Water heaters can transfer heat down the cold water pipe into the control valve. Hot water can severely damage the conditioners.
A
Always conform to local codes.
???Do not locate the unit in an area where the ambient temperature is ever below 34oF (1oC) or over
120oF (49oC).
???Maximum allowable water temperature is 100oF (38oC).
???Do not install the unit near acid or acid fumes.
???Do not expose the unit to petroleum products.
Water Line Connection
A bypass valve system must be installed to accommodate occasions when the water conditioning system must be bypassed for supplying hard water or servicing. See Figures 7 and 8.
Figure 8
8
Drain Line Connection
Note: Standard commercial practices are expressed here. Local codes may require changes to the following suggestions. Check with local authorities before installing a water conditioning system.
The system should be above, and not more than 20 feet (6.1 m) from a drain. Connect an appropriate fitting and
If the backwash flow is more than 5 gpm or if the unit is located more than 20 feet (6.1 m) from the drain, use 3/4- inch
If unit is located where the drain line must be elevated, you may elevate the line up to 5 feet (1.5 m) providing the run does not exceed 15 feet (4.6 m) and water pressure at the conditioners is not less than 40 psi (2.8 bar).
Where drain line is elevated but empties into a drain below the level of the control valve, form a
Brine Line Connection
It is recommended that separate brine lines be used for each tank.
A regenerant tank aircheck is not required when using a 255 valve with the
Install an appropriate fitting onto the
Figure 9
Note: Make sure that all fittings and connections are vacuum tight so that premature checking does not take place. Premature checking occurs when the ball in the air check falls to the bottom before all brine is drawn out of the brine tank.
Brine Tank Overflow Line Connection
In the event of a malfunction, the brine tank overflow connection directs overflow to the drain instead of spilling it on the floor where it could cause water damage. Complete the following steps to connect the overflow fitting to the brine tank:
1.Locate the fitting hole on the side of the brine tank.
2.Insert the overflow fitting (not supplied) into the tank and tighten with the plastic thumb nut and gasket as illustrated in Figure 10.
Figure 10 Brine Tank Drain
3.Attach a length of
9
Note: Do not elevate the overflow line higher than
3 inches (7.6 cm) below the bottom of the overflow fitting. Do not tie into the drain line of the control unit. The overflow line must be a direct, separate line from the overflow fitting to the drain, sewer, or tub. Allow an air gap as in the drain line connection, Figure 10.
WARNING: Never insert drain line directly into a drain, sewer line, or trap (Figure 11). Always
allow an air gap between the drain line and the waste water to prevent the possibility of sewage being
the end of the drain line to prevent it from moving (Figure 11).
Air Gap
Drain
Figure 11
Brine Tank
Normally one brine tank is needed for each tank. The use of block salt or rock salt is not recommended. If a brine shelf is used, two brine tanks are required. This is due to the increased time needed to produce a concentrated brine solution when using a salt shelf. If rapid multiple exhaustions and regenerations are anticipated, do not use a salt shelf even if two brine tanks are used.
Electrical Connection
Caution: 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
120 VAC AC Adapters:
Make sure 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 8 hours may cause the controller to lose the time and day settings. When power is restored, the control will display four dashes (-
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
Connect the inlet and outlet piping together using a grounding strap or clamp to establish continuity.
10
Disinfection of Water Conditioning
Systems
The materials of construction in the modern water conditioning system will not support bacterial growth, nor will these materials contaminate a water supply. During normal use, a conditioner may become fouled with organic matter, or in some cases with bacteria from the water supply. This may result in an
Some conditioners may need to be disinfected after installation and some conditioners will require periodic disinfection during their normal life.
Depending upon the conditions of use, the style of conditioner, the type of ion exchanger, and the disinfectant available, a choice can be made among the following methods.
Sodium or Calcium Hypochlorite
These materials are satisfactory for use with polystyrene resins, synthetic gel zeolite, and bentonites.
5.25% Sodium Hypochlorite
These solutions are available under trade names such as Cloroxa. If stronger solutions are used, such as those sold for commercial laundries, adjust the dosage accordingly.
1.Dosage
???Polystyrene resin; 1.2 fluid ounce (35.5 mL) per cubic foot.
???
2.Regenerant tank conditioners
A.Backwash the conditioner and add the required amount of hypochlorite solution to the well of the regenerant tank. The regenerant tank should have water in it to permit the solution to be carried into the conditioner.
B.Proceed with the normal regeneration.
a. Clorox is a trademark of the Clorox Company.
Calcium Hypochlorite
Calcium hypochlorite, 70% available chlorine, is available in several forms including tablets and granules. These solid materials may be used directly without dissolving before use.
1.Dosage
A.Two grains (approximately 0.1 ounce (3 mL) per cubic foot.
2.Regenerant tank conditioners
A.Backwash the conditioner and add the required amount of hypochlorite to the well of the regenerant tank. The regenerant tank should have water in it to permit the chlorine solution to be carried into the conditioner.
B.Proceed with the normal regeneration.
11
System Operation
Treated Water (Downflow)
Untreated water is conditioned as it flows through the resin bed and up the riser.
Backwash (Upflow) ??? Cycle C1
Flow is reversed by the control valve, directed down the riser, up through the resin bed and sent to drain. The bed is expanded and debris is flushed to the drain.
Regenerant Draw (Downflow) ??? Cycle C2a
Water passes through the injector and regenerant is drawn from the regenerant tank. The regenerant is directed to the resin bed. The hardness ions are displaced by sodium ions. Regenerant draw is completed when the air check closes.
Slow Rinse (Downflow) ??? Cycle C3a
Water flow moves the regenerant through the resin at a specific rate and rinses to the drain. The resin is regenerated.
Repressurization ??? Cycle C4
Pressure is balanced in the valve before continuing the regeneration.
Fast Rinse (Downflow) - Cycle C5
Water passes through the resin bed and up through the riser to drain. All remaining regenerant residual is rinsed from the resin bed.
2nd Backwash (Upflow) - Cycle C6
Flow is identical to C1 Backwash. The resin is reclassified.
2nd Rinse (Downflow) - Cycle C7
Flow is identical to C5 Fast Rinse. The resin bed is rinsed to quality.
Regenerant Refill ??? Cycle C8
Water is directed to the regenerant tank to create regenerant for the next regeneration.
a. The camshaft does not change position between the C2 and C3 cycles. C3 is not displayed.
12
Camshaft Cycle Positions
The front end of the camshaft has an indicator cup. The cup has slots in the outer edge and cycle numbers on the inside face (Figure 12).
Remove the cover and look over the top of the 764 control to view the cycle numbers. The number at the top indicates the current cycle position of the control valve. The corresponding slot for the number is positioned at the optical sensor, which is rotated approximately 90 degrees out of phase.
Note: If electrical power is not available, the camshaft can be rotated counterclockwise by hand if the motor is removed.
Cycle Indicators:
0 = Treated Water
1 = Backwash Cycle
2 = Regenerant Draw Cycle
3 = Slow Rinse Cycle
4 = System Pause
5 = Fast Rinse Cycle 1
6= 2nd Backwash
7= 2nd Fast Rinse
8= Regenerant Refill
Treated Water
Cycle Number
Treated Water
Slot
Figure 12
Valve Disc Location/Function
4 Bypass
3 Outlet
2 Inlet
1 Regenerant
Figure 13 255 Valve
764 Control Operation
Power Loss Memory Retention
The 764 control features
(-
All other programmed parameters are stored in the static memory and are retained.
13
Display Icons & Cursors
2
19
Note: In normal operation and during programming, only a few of the icons will actually be displayed.
11.The recycle sign is displayed (flashing) when a regeneration at the next time of regeneration has been called for. Also displayed (continuous) when in regeneration.
1.This cursor is displayed when the days between regeneration are being programmed (used with .5 to 99 day regeneration programming).
2.One of these cursors is displayed to indicate which day will be programmed into the controller.
3."PM" indicates that the time displayed is between 12:00 noon and 12:00 midnight (there is no AM indicator). PM indicator is not used if clock mode is set to
4.When "MIN" is displayed, the value entered is in minute increments.
5.When g/L is displayed, the value for regenerant amount entered is in grams/Liter.
6.When "Kg" is displayed, the value entered is in kilograms or kilograins.
7.Four digits used to display the time or program value. Also used for error codes.
8.Colon flashes as part of the time display. Indicates normal operation (742 only).
9.Locked/unlocked indicator. In Level I programming this is displayed when the current parameter is
10.When "x2" is displayed, a second regeneration has been called for.
12.The display cursor is next to "SALT AMOUNT" when programming the amount of regenerant. If the controller is on a
13.The display cursor is next to "REGENERATION TIME" when programming the time of regeneration and the days of regeneration.
14.The display cursor is next to "TIME/DAY" when programming the current time and day.
15.The hourglass is displayed when the motor is running. The camshaft should be turning.
16.These cursors appear next to the item that is currently displayed.
17.X100 multiplier for large values.
18.When Lbs/ft3 is displayed the value for regenerant amount entered is in pounds/cubic foot.
19.Faucet is displayed when the current flow rate is displayed. Control may show the faucet and "0", indicating no flow.
20.Maintenance interval display turns on if the months in service exceed the value programmed in P11.
21.Used with #24, #25, and #26. Displays valve in service, a sequence number or a value.
22.History Values (H). The number displayed by #23 identifies which history value is currently displayed.
14
23.Parameter (P). Displayed only in Level II Programming. The number displayed by #23 identifies which parameter is currently displayed.
24.Cycle (C). The number displayed by #23 is the current cycle in the regeneration sequence.
25.Hardness setting
26.Capacity
Keypad ??? Buttons
Figure 14
1.DOWN arrow. Generally used to scroll down or incre- ment through a group of choices.
2.SET. Used to accept a setting that normally becomes stored in memory. Also used together with the arrow buttons.
3.UP arrow. Generally used to scroll up or increment through a group of choices.
4.Regenerate. Used to command the controller to regenerate. Also used to change the lock mode.
Note: If a button is not pushed for thirty seconds, the controller returns to normal operation mode. Pushing the Regenerate button immediately returns the controller to normal operation.
Programming Conventions
The 700 series controller is programmed using the buttons on the keypad. The programming instructions are described two ways whenever a section has keypad input.
First, a table shows simplified instructions. Second, text follows that describes the action. In each table:
"Action" lists the event or action desired. "Keys" are listed as:
UP for up arrow
DOWN for down arrow
SET for set
REGEN for regeneration
"Duration" describes how long a button is held down:
P/R for press and release HOLD for press and hold
X sec for a number of seconds to press the button and hold it down
"Display" calls out the display icons that are visible.
15
Placing Water Conditioning System Into Operation
After you have performed the installation steps, the conditioner will need to be placed into operation.
Follow these steps carefully, (pages 16 to 21) as they differ from previous Autotrol valve instructions.
Note: All Logix 764 controls will be shipped in the service (treated water) position. Do not rotate the camshaft before performing the following steps.
The incoming supply water should be turned off.
Remove air from tank(s).
1.Position the bypass valve(s) to the in service (not in bypass) position.
2.Open the nearest water faucet completely.
3.Open the incoming water supply valve slowly to the quarter open position.
Note: Do not plug in the power supply until step 5. The tank(s) will fill with water. The air will exit through the faucet. When water flows steady from the faucet, the tank(s) are purged.
4.Turn off the faucet then turn off the incoming water supply.
5.Plug the transformer into a
If this is the first time the control is powered up the display will show 255A.
6. Use the or buttons to increment through the available selections, Table 1.
Table 1 Preprogrammed Valves
For the next steps you may want to remove the cover to watch the camshaft movement.
7. Press to enter the valve type and the proper preprogrammed valves for your application:
255A for Twin Alternating
255P for Twin Parallel
255L for single or multiple tanks with regeneration lockout or remote regeneration start
8. The display will show
Finish programming the Logix 764 control using the Level I programming guide.
For a 255A system: the control will automatically syncronize the cam positions.
Tank 1 will move to standby Tank 2 will move to service
err# will be displayed when the Tank 1 cam is moving. err4 will be displayed when Tank 2 cam is moving.
For a 255P system:
Tanks 1 and 2 will move to service if not already in service.
For a 255L system:
The tank(s) will move to service if not already in service.
16
These cam movements may take up to 5 minutes.
Table 2
Resin Volume - 0.25 ft3 and 5 Liter Steps
17
Level l Programming - 764 Control with 255 Valve, 8 Cycle Conditioner
SU MO TU WE TH FR SA DAYS
Time/Day
Regeneration Time
Salt Amount
Capacity
Hardness
SU MO TU WE TH FR SA DAYS
Time/Day
Regeneration TimePM
Salt Amount
Capacity
Hardness
SU MO TU WE TH FR SA DAYS
Time/Day
Regeneration Time
Salt Amount
Capacity
Hardness
SU MO TU WE TH FR SA DAYS
1.Resin Volume
Select correct resin volume
2. Time of Day (12 hr.) Set to time of day
Note: Setting includes PM indicator.
3.Day of Week
Set to actual day of the week
Cubic feet: 0.25 to
3.00
Time/Day
Regeneration Time
Salt Amount
Capacity
Hardness
SU MO TU WE TH FR SA DAYS
4.Time of Regeneration
Set to desired time of regeneration
Time/Day
Regeneration Time
Salt Amount
Capacity
Hardness
SU MO TU WE TH FR SA DAYS
Time/Day
Regeneration Time
Salt Amount
SU MO TU WE TH FR SA DAYS
5.Days Override
Leave at 0 to disable or
Set to desired days between regeneration
7.Salt Dosage
Set to desired desired dosage lbs per cubic feet of resin
Days:1 to
99
Lbs/ft3 : 3 to 18
Time/Day
Regeneration Time
Salt Amount
SU MO TU WE TH FR SA DAYS
Time/Day
Regeneration Time
Salt Amount
Capacity
Hardness
press
to override press
then or press
press
then or press
Control programming is complete
Note: If one of the following conditions occur:
???control displays Err3 and goes to home position or
???power outage discharges the supercapacitor and when power is restored and the time of day is reset;
the Regen Icon will begin flashing. This indicates that a delayed regeneration will occur at the next programmed time of regeneration. If a delayed regeneration is not desired, press the REGEN Button to disable the delayed regeneration and the system will regenerate by water usage.
18
Placing Water Conditioning System Into
Operation (continued)
Caution: If your system is a 255A (Alternating) go to ???Quick Cyling the Control for 255A Systems???.
Quick Cycling the Control 255L and 255P
It is required that the control be quick cycled to specific regeneration cycles when placing the conditioner into operation. This will ensure that all of the air in the tank and valve is purged. The process also provides a check for leaks and functioning of the brine system. Please perform the following steps for quick cycling the control, before proceeding to
1.With the control in the treated water position, Press and hold the REGEN button on the controller for 5 seconds. This will initiate a manual regeneration. The control will display a solid hourglass indicating that the motor and camshaft are turning to the backwash cycle (C1). When the control reaches the backwash cycle, the total regeneration time remaining will be displayed. Pressing the SET button will display the specific cycle time remaining.
2.Press and release the UP and SET buttons to move the control to the Regenerant Draw cycle (C2).
3.Repeat Step 2 to advance to each cycle.
Before the final filling of the media tank with water check that:
???the nearest water faucet is completely closed.
???the valve drain line is properly routed to a drain
???the regenerant tank is empty and the regenerant hose is connected to the valve
???the water supply valve is off.
Note: The control can be sent directly back to the treated water position from any regeneration cycle. Press the UP and SET buttons (about 5 seconds) until the hourglass icon begins flashing. The control will now skip all remaining regeneration cycles.
255 Alternating and parallel tank systems have one Logix 764 control that is mounted on tank 1. Tank 2 has a blank faceplate and the valve is controlled by the Logix 764 control on tank 1.
4.Add water to the regenerant tank.
A.With a bucket or hose add approximately 4 gallons (15 liters) of water to the regenerant tank.
B.If the tank has a salt platform in the bottom of the tank, add water until the water level is approximately 1 inch (25 mm) above the platform.
Note: It???s recommended that you do not put regenerant into the tank until after the control valve has been put into operation. With no regenerant in the tank, it is much easier to view water flow and motion in the tank.
5. Press and hold the button on the controller for 5 seconds. This will initiate a manual regeneration.
The control will display a solid hourglass indicating that the motor and camshaft are turning to the backwash cycle (C1). When the control reaches the backwash cycle, the total regeneration time remaining will be displayed. Pressing the SET button will display the specific cycle time remaining.
6.While the controller is in cycle C1 (Backwash), open the water supply valve very slowly to approximately the ?? open position. Water will begin to enter the media tank. Any air remaining will begin to be purged to drain as the media tank fills with water.
WARNING: If opened too rapidly or too far, media may be lost out of the tank into the valve or the plumbing. In the ?? open position, you should hear air slowly escaping from the valve drain line.
When all of the air has been purged from the media tank (water begins to flow steadily from the drain line), open the main supply valve all of the way. This will purge the final air from the tank.
Allow water to run to drain until the water runs clear from the drain line. This purges any debris from the media bed.
7.Check Regenerant Draw.
A.Quick cycle the control to the C2 regenerant draw/slow rinse position .
Note: As you advance through each cycle there will be a slight delay before you can advance to the next cycle. There will be a pause after the regenerant draw and slow rinse cycles. This cycle (C4) is a repressurization cycle and is designed to allow the water pressure to equalize on each side of the valve discs. Allow the control to repressurize (3 minutes) before cycling the control to the regenerant tank refill position.
B.C2 will be displayed. With the control in this position, check to see that the water is being drawn out of the regenerant tank. The water level in the regenerant tank should recede very slowly.
19
C.Observe that water is being drawn from the regenerant tank for at least three minutes. If the water level does not recede, check all regenerant line connections for air leaks.
8.If the water level is receding from the regenerant tank you can quick cycle the control to the C8 Regenerant tank refill position.
A.The control will cycle to the regenerant tank refill cycle, and water will be directed down through the regenerant line to the regenerant tank. Let the water flow through the line until all air bubbles have been purged from the line. Note: Do not let the water flow down the line to the tank for more than one to two minutes, or the tank may overfill.
9.Repeat steps 4 and 8 for each additional tank.
10.Finally, turn on a faucet plumbed after the water conditioner. Run the faucet until the water runs clear.
11.Add the appropriate amount of regenerant to regenerant tank.
The Water Conditioning System is Now Fully Operational
Note: After any control reset (valve type or system change, etc.) it is necessary to initiate a manual regeneration and quick cycle through it. This will ensure the control and cam are synchronized. If not synchronized err# will display and the control will drive cams to the correct position for valve and system type programmed.
Quick Cycling the Control for 255A Systems
It is required that the control be quick cycled to specific regeneration cycles when placing the conditioner into operation. This will ensure that all of the air in the tank and valve is purged. The process also provides a check for leaks and functioning of the brine system.
After the initial power up and programming, tank 1 will be in standby and tank 2 will be in service.
Before the final filling of the media tanks with water, check that:
???the nearest water faucet is completely closed.
???the valve drain line is properly routed to a drain.
???the regenerant tank is empty and the regenerant hose is connected to the valve.
???the water supply valve is partially open
???valve bypasses are in service positions.
During this process the valves will need to be quickly advanced to the next cycle. To quick cycle press and after the regeneration cycle has started.
255 Alternating tank systems have one Logix 764 control that is mounted on tank 1. Tank 2 has a blank faceplate and the tank 2 valve is controlled by the Logix 764 control on tank 1.
To Place the 255 Alternating System into Operation:
1. Press and hold the button for 5 seconds. This will start the first regeneration.
Note: Once the valve has reached the cycle (visable on the display and camshaft has stopped turning), quick cycle to the next cycle. This is especially recommended for the C8 cycle. Overfilling the regenerant tank will affect the brine and future regen cycles.
Note: It is recommended that you do not put regenerant into the tank until after the control valve has been put into operation. With no regenerant in the tank, it is much easier to view water flow and motion in the tank.
Tank 1 moves through cycles: C5 - Fast Rinse
As water enters the tank, air will be forced out the drain line. Once water fills the tank it will then discharge out the drain line. Quick cycling the control can now be used to advance through the remaining cycles
C8 - Regenerant Refill; the aircheck is filled and flow to the regenerant tank is visable
Quick cycle Tank 1 to service
Tank 2 moves through cycles: C1 - Backwash
As water enters the tank, air will be forced out the drain line. Once water fills the tank it will then discharge out the drain line. Quick cycling the control can now be used to advance through the remaining cycles
C2 - Regenerant Draw; the regenerant tank should have water in it. As the draw occurs the level will go down.
C3- Slow Rinse
C4 - Standby
Both tanks have now been purged of air. The water supply valve can be fully opened.
20
2. Press and hold the button for 5 seconds. This will start the second regeneration.
Quick cycle as Tank 2 moves through cycles: C5 - Fast Rinse
C6 - 2nd Backwash
C7 - 2nd Rinse
C8 - Regenerant Refill; the aircheck is filled and flow to the regenerant tank is visable.
Quick cycle to Service
Quick cycle as Tank 1 moves through cycles: C1 - Backwash
C2 - Regenerant Draw; the regenerant tank should have water in it. As the draw occurs the level will go down.
C3 - Slow Rinse
C4 - Standby
At this point Tank 1 is fully operational.
3. Press and hold the button for 5 seconds. This will start the third regeneration. After this step both tanks will be ready.
Quick cycle as Tank 1 moves through cycles: C5 - Fast Rinse
C6 - 2nd Backwash
C7 - 2nd Rinse
C8 - Regenerant Refill Quick cycle to Service
Quick cycle as Tank 2 moves through cycles: C1 - Backwash
C2 - Regenerant Draw; the regenerant tank should have water in it. As the draw occurs the level will go down.
C3 - Slow Rinse
C4 - Standby
Both tanks are now ready.
4.Turn on a faucet plumbed after the water conditioner. Run the faucet until the water runs clear.
5.Add water to the regenerant tanks.
A.With a bucket or hose, add water until approximately 4 gallons (15 liters) of water in each regenerant tank.
B.If the tank has a salt platform in the bottom of the tank, add water until the water level is approximately 1 inch (25 mm) above the platform.
The Alternating Water Conditioning
System is Now Fully Operational
Note: After any control reset (valve type or system change, etc.) it is necessary to initiate a manual regeneration and quick cycle through it. This will ensure the control and cam are synchronized. If not synchronized err# will display and the control will drive cams to the correct position for valve and system type programmed..
21
In Service Display
SU MO TU WE TH FR SA DAYS
Time/Day
Regeneration Time
Salt Amount
Capacity
Hardness
SU MO TU WE TH FR SA DAYS
Time/Day
Regeneration Time
Salt Amount
Capacity
Hardness
Logix 764 Electronic
Control:
Service display ??? The number of the Tank in Service (small digit next to CPH position) and Alternating Capacity Remaining and Flow Rate with Faucet icon of Tank in Service
Logix 764 Electronic Multi Tank - "P" Parallel Control:
Service Display ??? alternating three items
Capacity remaining for Tank 1 with digit "1" displayed Capacity remaining for Tank 2 with digit "2" displayed
System Flow Rate (Tank 1 + Tank 2 added) with Faucet icon
Logix 764 Electronic Multi Tank ??? "L" Lock Out Control
Service Display ??? Alternating Capacity Remaining and Flow Rate with Faucet icon "L??? displayed indicating lockout signal is active. Blinking "L" and Lock icon if lockout signal is active and control is ready to perform regeneration.
Note: The faucet icon is displayed on all the Logix 764 controls when there is flow. The 764 will show the faucet icon when the flow rate is displayed, even if the flow rate is zero. If the flow rate is zero, the faucet will turn off when the capacity is displayed.
Programming Overview
The 764 control includes multiple program levels that allow the Water Treatment Professional to customize the system for many water conditions. Additionally, historical data can be viewed allowing quick and easy troubleshooting. In most cases Level I programming is all that is required to set up the water conditioning system for proper operation. A brief description of each program level is listed below.
Level I Used to program control for normal applications.
Level II
Level Ill
Level IV History
Note: If a button is not pushed for thirty seconds, the control returns to normal operation mode.
Level I Programming
The 764 control can be quickly programmed by following the sequential procedure in the section ???Placing Water Conditioning System Into Operation???. Level I program parameters are those that can be accessed by pressing the UP or DOWN buttons.
???Resin Volume Setting: Set to match the volume (cubic feet) of resin in the mineral tank.
???Time of Day: Includes PM indicator. Can be set to display as a
???Day of Week: Set to actual day of the week.
???Time of Regeneration: Fully adjustable. Default is 2:00 AM.
???Days Override: Range 0.5 to 99 days. Leave at 0 to disable.
???Salt Dosage: Set at pounds of salt per cubic foot of resin in the conditioner tank.
Note: When the control is set up for a
22
Level II Programming ??? P Values
Level II program parameters can be adjusted to
ll parameters will not need to be adjusted as the default settings accommodate most applications. Contact your Water Treatment Professional before attempting any programming.
23
Programming the Lockout Feature
All Level I parameters can be locked out when the control is in Level ll programming. Simply press the REGEN button during Level ll programming and a Lock Icon will appear indicating that the specific setting has been locked out. When locked out, the setting cannot be adjusted. To disable the Lock Out Feature, press the REGEN button when in Level ll. The lock icon will not be displayed.
Table 3 Exchange Capacity 255 Valve
Salt Setting
The default P6 salt setting is set at 9 lbs/cu ft. Under normal circumstances this setting will provide the correct system capacity. This setting may be adjusted to change the exchange capacity.
*Default setting.
24
Level lll Cycle Programming ??? C Values
Several Level III program parameters can be adjusted to
accessible by pressing and holding the UP and SET buttons until the display shows a ???C??? value.
Note: The control must by in the treated water position to change settings.
25
Level IV Viewing History - H Values
Historical information can be viewed by pressing the SET and DOWN buttons simultaneously, with the 764 control in the home position. Release both buttons when the control displays an ???H??? value. Press the UP or DOWN buttons to navigate to each setting.
Table 4 History Data
a.H0, H5, H6, H15, H17 values can be reset by pressing and holding for 3 seconds while the values are being displayed.
Program Reset
The 764 control can be reset to original factory parameters when viewing the H0 parameter. Press and hold the SET button for three seconds while H0 is displayed. Release the button. All settings except for Time of Day and Day of Week will be reset. The 764 Logix control will now display the valve and system type. Refer to Level I Programming.
Note: After any control reset (valve type or system change, etc.) it is necessary to initiate a manual regeneration and quick cycle through it. This will ensure the control and cam are synchronized. If not synchronized err# will display and the control will drive cams to the correct position for valve and system type programmed.
26
Manual Regeneration Options
Note: The tank in service
The 764 control features several options that offer additional flexibility for manually regenerating the conditioner. On alternating systems the tank in standby will move through regeneration to service. The tank in service will move through regeneration to standby. On parallel systems, the tank with the lowest remaining capacity will regenerate.
Delayed Manual Regeneration
Press and release the REGEN button to start a delayed manual regeneration. The Regeneration icon on the display will flash indicating a regeneration will start when the time of day reaches the programmed time of regeneration. Pressing the REGEN button again will turn off the regeneration icon and cancel the delayed regeneration.
Immediate Manual Regeneration
Pressing and holding the REGEN button for three seconds starts an immediate manual regeneration. A solid regeneration icon will be displayed. The control will immediately begin a regeneration on the tank in service.
Delayed Second Regeneration
Pressing and releasing the REGEN button while the control is in regeneration will program the control for a delayed second regeneration. A flashing x2 icon next to the regeneration icon will appear indicating a second regeneration will start when the time of day reaches the programmed time of regeneration. The delayed second regeneration will be performed on the new tank in service. For alternating and parallel systems, each tank will regenerate once.
Double Immediate Manual Regeneration
27
Regeneration Modes for Parallel Systems
Parameter P16 is used to determine the method for demand initiated regeneration. Four regeneration modes are possible.
???P16 = 0, Delayed Regeneration with a Smart Reserve Regenerations will start only at the Time of Regeneration entered in P2. A tank is regenerated if the capacity remaining in that tank is below the minimum required capacity needed to meet the next days calculated water usage requirement. The next days water usage number is based on the daily average water usage held in memory plus a 20% reserve. If necessary both tanks will be regenerated sequentially beginning with the most exhausted tank. This option allows the control to vary the reserve, and therefore the decision to regenerate, based on the actual daily water usage pattern for the location at which it is installed. See Table 5.
???P16 = 1, Delayed Regeneration with a Fixed Reserve Regenerations will start only at the Time of Regeneration entered in P2. A tank is regenerated if the capacity remaining in that tank is below the percentage entered in P17.
If either tank???s capacity is overrun by 50% a regeneration will take place. The control will also cause both tanks to be regenerated 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 6.
???P16 = 2, Immediate Regeneration - Fixed
options. Option number 2 provides all the advantages of variable reserve based on the actual amount of water that is used each day plus the capability to react to the excessive water usage days that occur occasionally. See Table 7.
???P16 = 3, Immediate Regeneration - Fixed Reserve Regenerations are started immediately when a tank reaches zero or when the system capacity remaining (capacity remaining in both tanks) drops below the reserve capacity programmed in P17. To prevent hard water this reserve should be set large enough to provide conditioned water during the regeneration of the most exhausted tank. See Table 8.
Table 5 P16 = 0
28
Wiring Diagrams
Connecting the Logix 764 Twin Alternating or Parallel Controls
The twin sensor and extension cables are used for twin unit parallel and alternating applications. Four standard connections are required for operation; the power transformer, the flow sensor, motor/optical sensor, and the connection between tank 1 and tank 2 controls. Figure 15 outlines these standard features.
BRN
ORG
WHT
YEL
BL
P1
Logix 764 control on Tank 1
Figure 15
Remote Regeneration Start
Cut Cable here
Normally Open
Dry Contact Closure to
Start Regeneration
Note: Cable PN 3019464 sold separately.
Strip back insulation
Figure 16
29
Connecting the Logix 764 Multi Single Tank Control
Logix 764 control on Tank 1
RED
BLK
GRN
Note: Cable PN 3019464 sold separately.
Figure 17
30
Parts Lists
255 Exploded View & Parts List
7
31
* Not Shown on Drawing
32
Bypass Valve and Turbine Adapter
Bypass
1
Inlet
Drain
Outlet
Turbine Adapter
2
*1034302 Kit, 256 Rotor Seals (2),
*Not Shown
33
Manifold Kits
34
Troubleshooting
764 Controller ??? Error Codes & 255 ???L??? with Check Salt Light
35
System Troubleshooting
36
37
38
39
?? Copyright 2007 General Electric Company
P/N 3019624 Rev A