Watts 2750 User Manual
Model 2750 Downow
Service Manual
IMPORTANT: Fill in Pertinent Information on Page 3 for Future Reference
Table of Contents
Job Specication Sheet ......................................................................................................................................... 3
General Commercial Pre-Installation Check List ................................................................................................... 4
3200 Timer Setting Procedure ............................................................................................................................... 5
3210 Timer Settings............................................................................................................................................... 6
3200 & 3210 Timer Series Regeneration Cycle Program Setting Procedure ........................................................ 7
3200 Timer Assembly ............................................................................................................................................ 8
3210 Timer Assembly .......................................................................................................................................... 10
Control Drive Assembly ....................................................................................................................................... 12
Control Valve with 1700 Injector .......................................................................................................................... 14
1600 Series Brine System Assembly................................................................................................................... 16
1700 Series Brine System Assembly................................................................................................................... 17
1” Meter Assembly ............................................................................................................................................... 18
2310 Safety Brine Valve ...................................................................................................................................... 19
Service Valve Operator ........................................................................................................................................ 20
Troubleshooting ................................................................................................................................................... 21
General Service Hints for Meter Control.............................................................................................................. 22
Water Conditioner Flow Diagrams ....................................................................................................................... 23
Flow Data & Injector Draw Rates ........................................................................................................................ 25
System #4 Typical Tank Installation with Optional Meter ..................................................................................... 26
System #5 Interlock Typical Twin Tank Installation with Optional 2 Meter Interlock and
No Hard Water Bypass ........................................................................................................................................ 26
System #6 Twin Series Regeneration Installation with a Remote Meter ............................................................. 27
System #7 Twin Alternator Installation with a Remote Meter .............................................................................. 27
System #4 Immediate & Delayed Valve Wiring ................................................................................................... 28
System #4 Remote Signal Start Valve Wiring ..................................................................................................... 29
System #5 Duplex Valve Wiring .......................................................................................................................... 30
System #6 Duplex Valve Wiring .......................................................................................................................... 31
System #7 Duplex 24V/120V 3-Way Valve Wiring .............................................................................................. 32
System #7 Duplex 230V 3-Way Valve Wiring ...................................................................................................... 33
Service Assemblies ............................................................................................................................................. 34
IMPORTANT PLEASE READ:
The information, specications and illustrations in this manual are based on the latest information available at the time of
•
printing. The manufacturer reserves the right to make changes at any time without notice.
This manual is intended as a guide for service of the valve only. System installation requires information from a number of
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suppliers not known at the time of manufacture. This product should be installed by a plumbing professional.
This unit is designed to be installed on potable water systems only.
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This product must be installed in compliance with all state and municipal plumbing and electrical codes. Permits may be
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required at the time of installation.
If daytime operating pressure exceeds 80 psi, nighttime pressures may exceed pressure limits. A pressure reducing valve must
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be installed.
Do not install the unit where temperatures may drop below 32°F (0°C) or above 125°F (52°C).
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Do not place the unit in direct sunlight. Black units will absorb radiant heat increasing internal temperatures.
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Do not strike the valve or any of the components.
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Warranty of this product extends to manufacturing defects of the vessel and controller, not the membrane. Misapplication of this
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product may result in failure to properly condition water, or damage to product.
A prelter should be used on installations in which free solids are present.
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In some applications local municipalities treat water with Chloramines. High Chloramine levels may damage valve components.
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Correct and constant voltage must be supplied to the control valve to maintain proper function.
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Job Specication Sheet
Job No. ___________________
Model No. _________________
Water Test ________________
Capacity Per Unit ___________
Mineral Tank Size __________ Diameter __________ Height ___________
Brine Tank Size & Salt Setting per Regeneration ______________________
2750 Control Valve Specications
1. Type of Timer
A. 7 Day or 12 Day
B. 310 to 5,270 Gallon Meter or
1,550 to 26,350 Gallon Meter or
Other
C. Meter Wiring Package
1. System #4 - 1 Tank, 1 Meter, Immediate or Delayed Regeneration, Time Clock
2. System #5 - Up to 5 Tanks, 1 Meter per Valve, Immediate Regeneration Only, All Tanks Online,
Interlock System
3. System #6 - Up to 5 Tanks, 1 Meter, Delayed or Immediate Remote Meter, All Tanks Online,
Series Regeneration System
4. System #7 - 2 Tanks, 1 Meter, Immediate or Delayed Remote Meter, 1 Tank Online,
1 Tank Standby, Alternating System
2. Timer Program Settings
A. Backwash ________________________ Minutes
B. Brine & Slow Rinse __________________ Minutes
C. Rapid Rinse ________________________ Minutes
D. Brine Tank Rell _____________________ Minutes
3. Drain Line Flow Control __________________ GPM
4. Brine Line Flow Controller ________________ GPM
5. Injector Size # _________________________
6. Service Valve Operation Units (SVO)
Size of Service Valve ____________________
Page 3
General Commercial Pre-Installation Check List
WATER PRESSURE: A minimum of 25 pounds of water pressure is required for regeneration valve to operate
effectively.
ELECTRICAL FACILITIES: A continuous 115 volt, 60 Hertz current supply is required. Make certain the current
supply is always hot and cannot be turned off with another switch.
EXISTING PLUMBING: Condition of existing plumbing should be free from lime and iron buildup. Piping that is
built up heavily with lime and/or iron should be replaced. If piping is clogged with iron, a separate iron lter unit
should be installed ahead of the water softener.
LOCATION OF SOFTENER AND DRAIN: The softener should be located close to a drain.
BY-PASS VALVES: Always provide for the installation of a by-pass valve.
CAUTION: Water pressure is not to exceed 120 p.s.i., water temperature is not to exceed 100° F, and the unit
cannot be subjected to freezing conditions.
Installation Instructions
1. Place the softener tank where you want to install the unit making sure the unit is level and on a rm base.
(Maximum 4 feet apart for twin units)
2. All plumbing should be done in accordance with local plumbing codes. The pipe size for the drain line should
be the same size as the drain line ow control connection. Water meters are to be installed on soft water
outlets. Twin units with 1 meter shall be installed on common soft water outlet of units.
3. Solder joints near the drain must be done prior to connecting the Drain Line Flow Control tting. Leave at
least 6” between the DLFC and solder joints when soldering when the pipes are connected on the DLFC.
Failure to do this could cause interior damage to the DLFC.
4. Teon tape is the only sealant to be used on the drain tting. The drain from twin units may be run through a
common line.
5. Make sure that the oor is clean beneath the salt storage tank and that it is level.
6 Place approximately 1” of water above the grid plate (if used) in your salt tank. Salt may be placed in the unit
at this time.
7. Place in by-pass position. Turn on the main water supply. Open a cold soft water tap nearby and let run a few
minutes or until the system is free from foreign material (usually solder) that may have resulted from the
installation.
8. Place the by-pass in service position.
9. Manually index the softener control into “service” position and let water ow into the mineral tank. When water
ow stops, close inlet valve, place control in “backwash” position to relieve head of air, then gradually open
inlet valve to purge remaining air in tank. Return control to service position.
10. Electrical: All electrical connections must be connected according to codes. Use electrical conduit if
applicable. Plug into power supply.
Page 4
How To Set Days On Which Water Conditioner Is To
Regenerate:
Rotate the skipper wheel until the number “1” is at the red
pointer. Set the days that regeneration is to occur by sliding tabs on the skipper wheel outward to expose trip ngers. Each tab is one day. Finger at red pointer is tonight.
Moving clockwise from the red pointer, extend or retract
ngers to obtain the desired regeneration schedule.
How To Set The Time Of Day:
1. Press and hold the red button in to disengage the
drive gear.
2. Turn the large gear until the actual time of day is at
the time of day pointer.
3. Release the red button to again engage the drive
gear.
How To Manually Regenerate Your Water
Conditioner At Any Time:
1. Turn the manual regeneration knob clockwise.
2. This slight movement of the manual regeneration
knob engages the program wheel and starts the
regeneration program.
3. The black center knob will make one revolution in
the following approximately three hours and stop in
the position shown in the drawing.
4. Even though it takes three hours for this center knob
to complete one revolution, the regeneration cycle of
your unit might be set only one half of this time.
5. In any event, conditioned water may be drawn after
rinse water stops owing from the water
conditioner drain line.
How to Adjust Regeneration Time:
1. Disconnect the power source.
2. Locate the three screws behind the manual
regeneration knob by pushing the red button in and
rotating the 24 hour dial until each screw appears in
the cut out portion of the manual regeneration knob.
3. Loosen each screw slightly to release the pressure
on the time plate from the 24 hour gear.
4. Locate the regeneration time pointer on the inside
of the 24 hour dial in the cut out.
5. Turn the time plate so the desired regeneration time
aligns next to the raised arrow.
6. Push the red button in and rotate the 24 hour dial.
Tighten each of the three screws.
7. Push the red button and locate the pointer one more
time to ensure the desired regeneration time
is correct.
8. Reset the time of day and restore power to the unit.
3200 Timer Setting Procedure
Page 5
3210 Timer Settings
Typical Programming Procedure
Calculate the gallon capacity of the system, subtract
the necessary reserve requirement and set the gallons
available opposite the small white dot on the program
wheel gear.
NOTE: Drawing shows 8,750 gallon setting. The
capacity (gallons) arrow denotes remaining gallons
exclusive of xed reserve.
How To Set The Time Of Day:
Press and hold the red button in to disengage the
1.
drive gear.
Turn the large gear until the actual time of day is
2.
opposite the time of day pointer.
Release the red button to again engage the drive
3.
gear.
How To Manually Regenerate Your Water Conditioner At Any Time:
Turn the manual regeneration knob clockwise.
1.
This slight movement of the manual regeneration
2.
knob engages the program wheel and starts the
regeneration program.
The black center knob will make one revolution in
3.
the following approximately three hours and stop in
the position shown in the drawing.
Even though it takes three hours for this center
4.
knob to complete one revolution, the regeneration
cycle of your unit might be set for only one half of
this time.
In any event, conditioned water may be drawn after
5.
rinse water stops owing from the water conditioner
drain line.
Immediate Regeneration Timers:
These timers do not have a 24 hour gear. Setting the
gallons on the program wheel and manual regeneration
procedure are the same as previous instructions.
Page 6
NOTE: To set meter capacity
rotate manual knob one - 360°
revolution to set gallonage.
3200 & 3210 Timer Series
Regeneration Cycle Program Setting Procedure
(Brine Tank Rell Separate from Rapid Rinse)
How To Set The Regeneration Cycle Program:
The regeneration cycle program on your water conditioner has been factory preset, however, portions of
the cycle or program may be lengthened or shortened
in time to suit local conditions.
3200 & 3210 Series Timers (Figure to Right)
To expose cycle program wheel, grasp timer in
1.
upper left-hand corner and pull, releasing snap
retainer and swinging timer to the right.
To change the regeneration cycle program, the
2.
program wheel must be removed. Grasp program
wheel and squeeze protruding lugs toward center, lift program wheel off timer. (Switch arms may
require movement to facilitate removal)
Return timer to closed position engaging snap
3.
retainer in back plate. Make certain all electrical
wires locate above snap retainer post.
Timer Setting Procedure for 3200 & 3210
Timer
How To Change The Length Of The Backwash
Time:
The program wheel as shown in the drawing is in the
service position. As you look at the numbered side of
the program wheel, the group of pins starting at zero
determines the length of time your unit will backwash.
EXAMPLE: If there are six pins in this section, the time
of backwash will be 12 min. (2 min. per pin). To change
the length of backwash time, add or remove pins as
required. The number of pins times two equals the
backwash time in minutes.
How To Change The Length Of Brine And Rinse
Time:
The group of holes between the last pin in the
1.
backwash section and the second group of pins
determines the length of time that your unit will
brine and rinse (2 min. per hole.)
To change the length of brine and rinse time, move
2.
the rapid rinse group of pins to give more or fewer
holes in the brine and rinse section. Number of
holes times two equals brine and rinse time in
minutes.
How To Change The Length Of Rapid Rinse:
The second group of pins on the program wheel
1.
determines the length of time that your water conditioner will rapid rinse. (2 min. per pin.)
To change the length of rapid rinse time, add or
2.
remove pins at the higher numbered end of this
section as required. The number of pins times two
equals the rapid rinse time in minutes.
How To Change The Length Of Brine Tank Rell
Time:
The second group of holes in the program wheel
1.
determines the length of time that your water conditioner will rell the brine tank (2 min. per hole.)
To change the length of rell time, move the two
2.
pins at the end of the second group of holes as
required.
The regeneration cycle is complete when the outer
3.
microswitch is tripped by the two pin set at end of
the brine tank rell section.
The program wheel, however, will continue to rotate
4.
until the inner micro-switch drops into the notch on
the program wheel.
Page 7
3200 Timer Assembly
Page 8
For Service Assembly Numbers, See the Back of this Manual
3200 Timer Assembly
1 ................... 1 .................... 13870 .................. Housing, Timer, 3200
2 ................... 1 .................... 13011 .................. Arm, Cycle Actuator
3 ................... 1 .................... 40096-24 ............. Dial 12AM Regen Assy, Black
40096-02 ............. Dial 2AM Regen Assy, Black
4 ................... 1 .................... 13886 .................. Knob, 3200
5 ................... 5 .................... 13296 .................. Screw, Hex Wsh, 6-20 x 1/2
6 ................... 1 .................... 11999 .................. Label, Button
7 ................... 1 .................... 14381 .................. Skipper Wheel Assy, 12 Day
14860 .................. Skipper Wheel Assy, 7 Day
8 ................... 1 .................... 13014 .................. Pointer, Regeneration
9 ................... 1 .................... 14265 .................. Clip, Spring
10 ................. 2 .................... 13311 .................. Spring, Detent, Timer
11 ................. 2 .................... 13300 .................. Ball, 1/4” SS
12 ................. 1 .................... 15424 .................. Spring, Detent, Timer
13 ................. 1 .................... 13911 .................. Gear, Main Drive, Timer
14 ................. 1 .................... 19210 .................. Program Wheel Assy, 3200
15 ................. 21 .................. 15493 .................. Pin, Spring, 1/16 x 5/8 SS
16 ................. 1 .................... 13018 .................. Pinion, Idler
17 ................. 1 .................... 13312 .................. Spring, Idler Shaft
18 ................. 1 .................... 13017 .................. Gear, Idler
19 ................. 1 .................... 13164 .................. Gear, Drive
20 ................. 1 .................... 13887 .................. Plate, Motor Mounting
21 ................. 1 .................... 18743-1 ............... Motor, 120V, 60Hz 1/30 RPM, 5600
19659-1 ............... Motor, 24V, 60 Hz 1/30 RPM
22 ................. 2 .................... 13278 .................. Screw, Phil Hd Mach, 6-32 x 1/8
23 ................. 3 .................... 11384 .................. Screw, Phil, 6-32 x 1/4 Zinc
24 ................. 1 .................... 13881 .................. Bracket, Hinge Timer
25 ................. 3 .................... 14087 .................. Insulator
26 ................. 1 .................... 10896 .................. Switch, Micro
27 ................. 1 .................... 15320 .................. Switch, Micro, Timer
28 ................. 2 .................... 11413 .................. Screw, Pan Hd Mach, 4-40 x 1 1/8
29 ................. 1 .................... 14007 .................. Label, Time of Day
30 ................. 1 .................... 14045 .................. Label, Instruction
31 ................. 1 .................... 13864 .................. Ring, Skipper Wheel
32 ................. 1 .................... 15066 .................. Ball, 1/4” Delrin
Not Shown ... 1 .................... 13902 .................. Harness, 3200
Not Shown ... 2 .................... 40422 .................. Nut, Wire, Tan
Not Shown ... 1 .................... 15354-01 ............. Wire, Ground 4”
For Service Assembly Numbers, See the Back of this Manual
Page 9
3210 Timer Assembly
Page 10
For Service Assembly Numbers, See the Back of this Manual
3210 Timer Assembly
Item No. Quantity Part No. Description
1 ..................1 ...................13870-01 .................Housing Assembly, Timer, 3210
2 ..................1 ...................13802 ......................Gear, Cycle Actuator
3 ..................1 ...................40096-24 .................Dial 12AM Regen Assy, Black
40096-02 .................Dial 2AM Regen Assy, Black
4 ..................1 ...................13886 ......................Knob, 3200
5 ..................4 ...................13296 ......................Screw, Hex Wsh, 6-20 x 1/2
6 ..................2 ...................11999 ......................Label, Button
7 ..................1 ...................60405-15 .................Program Wheel, w/3/4” Std Label with People Label Set
60405-50 .................Program Wheel, w/2” Std Label Set @ 21
8 ..................1 ...................13806 ......................Retainer, Program Wheel
9 ..................1 ...................13748 ......................Screw, Flt Hd St, 6-20 x 1/2
10 ................1 ...................14265 ......................Clip, Spring
11 ................1 ................... 15424 ......................Spring, Detent, Timer
12 ................1 ...................15066 ......................Ball, 1/4” Delrin
13 ................1 ...................13911 ......................Gear, Main Drive, Timer
14 ................1 ...................19210 ......................Program Wheel Assy
15 ................21 .................15493 ......................Pin, Spring, 1/16 x 5/8
16 ................1 ...................13018 ......................Pinion, Idler
17 ................1 ...................13312 ......................Spring, Shaft
18 ................1 ...................13017 ......................Gear, Idler
19 ................1 ...................13164 ......................Gear, Drive
20 ................1 ...................13887 ......................Plate, Motor Mounting
21 ................1 ...................18743 ......................Motor, 120V, 60Hz, 1/30 RPM, 5600
19659-1 ...................Motor, 24V, 60Hz, 1/30 RPM
22 ................2 ...................13278 ......................Screw, Phil Hd Mach, 6-32 x 1/8
23 ................1 ...................13830 ......................Pinion, Program Wheel Drive
24 ................1 ...................13831 ......................Clutch, Drive Pinion
25 ................1 ...................14276 ......................Spring, Meter Clutch
26 ................1 ...................14253 ......................Retainer, Clutch Spring
27 ................3 ...................11384 ......................Screw, Phil, 6-32 x 1/4
28 ................1 ...................13881 ......................Bracket, Hinge Timer
29 ................3 ...................14087 ......................Insulator
30 ................1 ...................10896 ......................Switch, Micro
31 ................1 ...................15320 ......................Switch, Micro, Timer
32 ................2 ...................11413 ......................Screw, Pan Hd Mach, 4-40 x 1 1/8
33 ................1 ...................14007 ......................Label, Time of Day
34 ................1 ...................14045 ......................Label, Instruction
Not Shown ..1 ...................13902 ......................Harness, 3200
Not Shown ..2 ...................40422 ......................Nut, Wire, Tan
Not Shown ..1 ...................15354-01 .................Wire, Ground 4”
Not Shown ..1 ...................15465 ......................Label, Caution
Not Shown ..1 ...................14198 ......................Label, Indicator
For Service Assembly Numbers, See the Back of this Manual
Page 11
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