Watts 2850 User Manual
MODEL 2850 CONTROL VALVE
Service Manual
IMPORTANT: Fill in pertinent information on page 2 for future reference.
MODEL 2850
Job Specification Sheet
* JOB NO. __________________________________________________________
* MODEL NO. _______________________________________________________
* WATER TEST ______________________________________________________
* CAPACITY PER UNIT________________________________________________
* MINERAL TANK SIZE DIA.___________________ HEIGHT _________________
* BRINE TANK SIZE & SALT SETTING PER REGENERATION:
_________________________________________________________________
* 2850 CONTROL VALVE SPECIFICATIONS
1) Type of Timer (see pages 16, 17, and 18)
A) 7 day or 12 day
B) * 625 to 10,625 gallon meter or
* 3,125 to 53,125 gallon meter
* Other _______________________________________
C) Meter Wiring Package
1) System #4 - 1 tank; 1 meter; immediate or delayed regeneration
2) System #5 - 2 tanks; 2 meters; interlock
3) System #6 - 2 tanks; 1 meter; series regeneration
4) System #7 - 2 tanks; 1 meter; alternator
2) Timer Program Settings (see page 18)
A) Backwash ____________________________________ min.
B) Brine & Slow Rinse _____________________________ min.
C) Rapid Rinse ___________________________________ min.
D) Brine Tank Refill________________________________ min.
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 2
Printed in U.S.A.
MODEL 2850
General Commercial Pre-Installation Check List
WATE R PR ES S UR E: 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 filter 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 firm 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 flow control connection. Water meters are to be installed on soft water outlets. Twin
units with (1) one 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 fitting. 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. Teflon tape is the only sealant to be used on the drain fitting. The drain from twin units may be run through a
common line.
5. Make sure that the floor 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 flow into the mineral tank. When water flow
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.
Printed in U.S.A.
Page 3
MODEL 2850
Water Conditioner Flow Diagrams
1
SERVICE POSITION
INLET
Hard water enters unit at valve inlet and flows down through the mineral in the mineral tank.
Conditioned water enters center tube through the bottom distributor then flows up through the
center tube around the piston and out the outlet of the valve.
2
BACKWASH POSITION BRINE POSITION
INLET
3
INLET
Hard water enters unit at valve inlet flows through piston down
center tube through bottom distributor and up through the mineral
around the piston and out the drain line.
Page 4
Hard water enters unit at valve inlet flows up into injector housing
and down through nozzle and throat to draw brine from the brine tank
brine flows down through mineral and enters the center tube
through bottom distributor and out through the drain line.
Printed in U.S.A.
MODEL 2850
Water Conditioner Flow Diagrams (Cont’d.)
4
SLOW RINSE POSITION
Hard water enters unit at valve inlet flows up into injector housing and down through nozzle and
throat around the piston down through mineral enters center tube through bottom
distributor flows up through center tube around piston and out through drain line.
RAPID RINSE BRINE TANK REFILL POSITION
65
Hard water enters unit at valve inlet flows directly from inlet down
through mineral into center tube bottom distributor and up through
center tube around piston and out through the drain line.
Printed in U.S.A.
Hard water enters unit at valve inlet flows up through the injector
housing through the brine valve to refill the brine tank.
Page 5
MODEL 2850
Control Valve with 1700 Injector
(See Opposite Page for Parts List)
Page 6
Printed in U.S.A.
MODEL 2850
Control Valve with 1700 Injector
Parts List
Item No. Quantity Part No. Description
1. . . . . . . . . . . 1 . . . . . . . . . . . 16250 . . . . . . . . . . . . . . . Valve Body
16250-01 . . . . . . . . . . . . . Valve Body Machined
2. . . . . . . . . . . 6 . . . . . . . . . . . 16101 . . . . . . . . . . . . . . . Seal
16101-02 . . . . . . . . . . . . . Silicone Seals
3. . . . . . . . . . . 5 . . . . . . . . . . . 16638-01 . . . . . . . . . . . . . Spacer
1 . . . . . . . . . . . 16638 . . . . . . . . . . . . . . . Spacer, Hot Water
4. . . . . . . . . . . 1 . . . . . . . . . . . 16092 . . . . . . . . . . . . . . . Piston
5. . . . . . . . . . . 1 . . . . . . . . . . . 16436 . . . . . . . . . . . . . . . Piston Rod
6. . . . . . . . . . . 1 . . . . . . . . . . . 16395 . . . . . . . . . . . . . . . End Plug Assembly
1 . . . . . . . . . . . 16395-01 . . . . . . . . . . . . . End Plug Assembly, Hot Water
7. . . . . . . . . . . 1 . . . . . . . . . . . 14805 . . . . . . . . . . . . . . . Injector Body Gasket
8. . . . . . . . . . . 1 . . . . . . . . . . . 14802 . . . . . . . . . . . . . . . Injector Throat
9. . . . . . . . . . . 1 . . . . . . . . . . . 17777 . . . . . . . . . . . . . . . Injector Body
10 . . . . . . . . . . 1 . . . . . . . . . . . 14801 . . . . . . . . . . . . . . . Injector Nozzle
11 . . . . . . . . . . 1 . . . . . . . . . . . 14803 . . . . . . . . . . . . . . . Injector Screen
12 . . . . . . . . . . 1 . . . . . . . . . . . 10229 . . . . . . . . . . . . . . . Injector Cover Gasket
13 . . . . . . . . . . 1 . . . . . . . . . . . 11893 . . . . . . . . . . . . . . . Injector Cover
14 . . . . . . . . . . 2 . . . . . . . . . . . 14804 . . . . . . . . . . . . . . . Screw - Injector Body
15 . . . . . . . . . . 1 . . . . . . . . . . . 16455 . . . . . . . . . . . . . . . O-Ring - Top of Tank
*16. . . . . . . . . . . 1 . . . . . . . . . . . 13577 . . . . . . . . . . . . . . . O-Ring
17 . . . . . . . . . . 1 . . . . . . . . . . . 16221 . . . . . . . . . . . . . . . Air Disperser
18 . . . . . . . . . . 1 . . . . . . . . . . . 17776 . . . . . . . . . . . . . . . Injector Body
19 . . . . . . . . . . 1 . . . . . . . . . . . 10914 . . . . . . . . . . . . . . . Injector Throat
20 . . . . . . . . . . 1 . . . . . . . . . . . 10227 . . . . . . . . . . . . . . . Injector Screen
21 . . . . . . . . . . 1 . . . . . . . . . . . 10913 . . . . . . . . . . . . . . . Injector Nozzle
22 . . . . . . . . . . 2 . . . . . . . . . . . 10692 . . . . . . . . . . . . . . . Screw - Injector Body
17656 . . . . . . . . . . . . . . . Screw, Metric - Injector Body
23 . . . . . . . . . . 1 . . . . . . . . . . . 60366 . . . . . . . . . . . . . . . DLFC 1″ NPT (not shown) - specify size
24 . . . . . . . . . . 1 . . . . . . . . . . . 17996 . . . . . . . . . . . . . . . Air Disperser, 1700 (not shown)
25 . . . . . . . . . . 1 . . . . . . . . . . . 19608-15 . . . . . . . . . . . . . Disperser, Upper (not shown)
26 . . . . . . . . . . 1 . . . . . . . . . . . 19606 . . . . . . . . . . . . . . . Piston
27 . . . . . . . . . . 1 . . . . . . . . . . . 19300 . . . . . . . . . . . . . . . NHWB-P Piston Rod
28 . . . . . . . . . . 1 . . . . . . . . . . . 10909 . . . . . . . . . . . . . . . Connecting Link Pin
29 . . . . . . . . . . 1 . . . . . . . . . . . 19339 . . . . . . . . . . . . . . . NHWB-P Spacer
30 . . . . . . . . . . 2 . . . . . . . . . . . 13386 . . . . . . . . . . . . . . . Screw
31 . . . . . . . . . . 1 . . . . . . . . . . . 16395-02 . . . . . . . . . . . . . NHWB-P End Plug Assy.
32 . . . . . . . . . . 1 . . . . . . . . . . . 19298-01 . . . . . . . . . . . . . NHWB-P Piston Assy.
Optional Side Mount
33 . . . . . . . . . . 1 . . . . . . . . . . . 40316 . . . . . . . . . . . . . . . Side Mount Adapter
34 . . . . . . . . . . 1 . . . . . . . . . . . 40368 . . . . . . . . . . . . . . . O-Ring, 2-160
35 . . . . . . . . . . 1 . . . . . . . . . . . 40372 . . . . . . . . . . . . . . . O-Ring, 2-142
36 . . . . . . . . . . 1 . . . . . . . . . . . 40310 . . . . . . . . . . . . . . . Base, Rotating
37 . . . . . . . . . . 7 . . . . . . . . . . . 19768 . . . . . . . . . . . . . . . Screw, Adapter
38 . . . . . . . . . . 7 . . . . . . . . . . . 40375 . . . . . . . . . . . . . . . Washer
* Do not use O-Ring if control is side mounted.
Printed in U.S.A.
Page 7
MODEL 2850
Control Drive Assembly
(See Opposite Page for Parts List)
22
3
1
4
21
5
2
6
17
Page 8
19
20
15
10
9
8
11
7
6
13
14
18
Printed in U.S.A.
1516
12
MODEL 2850
Control Drive Assembly
Parts List
Item No. Quantity Part No. Description
1. . . . . . . . . . . 1 . . . . . . . . . . . 40264 . . . . . . . . . . . . . . . Back Plate w/ Thumb Screws
2. . . . . . . . . . . 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Timer - 3200 7 Day
3. . . . . . . . . . . 1 . . . . . . . . . . . 11838 . . . . . . . . . . . . . . . Power Cord
4. . . . . . . . . . . 1 . . . . . . . . . . . 13547 . . . . . . . . . . . . . . . Strain Relief
5. . . . . . . . . . . 1 . . . . . . . . . . . 11667 . . . . . . . . . . . . . . . Wire Harness
6. . . . . . . . . . . 5 . . . . . . . . . . . 10872 . . . . . . . . . . . . . . . Screw - Motor Mounting
7. . . . . . . . . . . 1 . . . . . . . . . . . 10774 . . . . . . . . . . . . . . . Bracket - Motor Mounting
8. . . . . . . . . . . 2 . . . . . . . . . . . 10231 . . . . . . . . . . . . . . . Screw - Drive Mounting
9. . . . . . . . . . . 2 . . . . . . . . . . . 10302 . . . . . . . . . . . . . . . Insulator
10 . . . . . . . . . . 2 . . . . . . . . . . . 10218 . . . . . . . . . . . . . . . Switch
11 . . . . . . . . . . 1 . . . . . . . . . . . 10909 . . . . . . . . . . . . . . . Connecting Link Pin
12 . . . . . . . . . . 1 . . . . . . . . . . . 10250 . . . . . . . . . . . . . . . Retaining Ring
13 . . . . . . . . . . 1 . . . . . . . . . . . 10621 . . . . . . . . . . . . . . . Connecting Link
14 . . . . . . . . . . 1 . . . . . . . . . . . 12576 . . . . . . . . . . . . . . . Drive Cam - STF (Black)
15 . . . . . . . . . . 2 . . . . . . . . . . . 10338 . . . . . . . . . . . . . . . Roll Pin
16 . . . . . . . . . . 1 . . . . . . . . . . . 13366 . . . . . . . . . . . . . . . Drive Bearing
17 . . . . . . . . . . 2 . . . . . . . . . . . 14923 . . . . . . . . . . . . . . . Screw - Switch Mounting
18 . . . . . . . . . . 1 . . . . . . . . . . . 10769 . . . . . . . . . . . . . . . Motor
19 . . . . . . . . . . 1 . . . . . . . . . . . 11826 . . . . . . . . . . . . . . . Bracket - Brine Valve Side
20 . . . . . . . . . . 1 . . . . . . . . . . . 12777 . . . . . . . . . . . . . . . Brine Valve Cam - STF (Black)
21 . . . . . . . . . . 1 . . . . . . . . . . . 17470 . . . . . . . . . . . . . . . Meter Cable Guide Assembly
22 . . . . . . . . . . 1 . . . . . . . . . . . 17741 . . . . . . . . . . . . . . . Meter Cable Assembly
23 . . . . . . . . . . 2 . . . . . . . . . . . 10300 . . . . . . . . . . . . . . . Screw - Timer Mounting (not shown)
24 . . . . . . . . . . 1 . . . . . . . . . . . 12114 . . . . . . . . . . . . . . . Outboard Bearing Bracket (not shown)*
25 . . . . . . . . . . 2 . . . . . . . . . . . 15742 . . . . . . . . . . . . . . . Screw (not shown)
26 . . . . . . . . . . 2 . . . . . . . . . . . 15833 . . . . . . . . . . . . . . . Spacer (not shown)
27 . . . . . . . . . . 1 . . . . . . . . . . . 19291-020 . . . . . . . . . . . . Cover, 1-piece Black, (not shown)
28 . . . . . . . . . . 2 . . . . . . . . . . . 19367 . . . . . . . . . . . . . . . Screw, Cover (not shown)
1
1 . . . . . . . . . . . 12102 . . . . . . . . . . . . . . . Drive Cam - RR (White)
1 . . . . . . . . . . . 10815 . . . . . . . . . . . . . . . Brine Valve Cam - RR (White)
1 . . . . . . . . . . . 12472 . . . . . . . . . . . . . . . Brine Valve Cam - SVO (not shown)*
- 3200 12 Day
- 3210 Meter
Printed in U.S.A.
Page 9
MODEL 2850 ECONOMINDER
Timer Assembly
(See Opposite Page for Parts List)
1
34
2
3
®
4
5
6
27
28
29
30
23
24
31
33
32
25
7
8
9
16
17
18
26
19
6
10
11
12
13
14
15
5
20
21
22
Page 10
Printed in U.S.A.
MODEL 2850 ECONOMINDER
Timer Assembly
Parts List
Item No. Quantity Part No. Description
1. . . . . . . . . . . 1 . . . . . . . . . . . 13870-01 . . . . . . . . . . . . . Timer Housing Assembly
2. . . . . . . . . . . 1 . . . . . . . . . . . 13802 . . . . . . . . . . . . . . . Cycle Actuator Gear
3. . . . . . . . . . . 1 . . . . . . . . . . . 40096-24 . . . . . . . . . . . . . 24 Hour Gear Assembly, 12 Midnight
40096-02 . . . . . . . . . . . . . 24 Hour Gear Assembly, 2 a.m.
4. . . . . . . . . . . 1 . . . . . . . . . . . 13886-01 . . . . . . . . . . . . . Knob
5. . . . . . . . . . . 4 . . . . . . . . . . . 13296 . . . . . . . . . . . . . . . Screw - Timer Knob and Motor Plate Mtg.
6. . . . . . . . . . . 2 . . . . . . . . . . . 11999 . . . . . . . . . . . . . . . Button Decal
7. . . . . . . . . . . 1 . . . . . . . . . . . 60405-15 . . . . . . . . . . . . . Program Wheel Assy. (Specify Hardness Capacity)
8. . . . . . . . . . . 1 . . . . . . . . . . . 13806 . . . . . . . . . . . . . . . Program Wheel Retainer
9. . . . . . . . . . . 1 . . . . . . . . . . . 13748 . . . . . . . . . . . . . . . Screw - Program Wheel Mtg.
10 . . . . . . . . . . 1 . . . . . . . . . . . 14265 . . . . . . . . . . . . . . . Spring Clip
11 . . . . . . . . . . 1 . . . . . . . . . . . 15424 . . . . . . . . . . . . . . . Spring - Detent
12 . . . . . . . . . . 1 . . . . . . . . . . . 15066 . . . . . . . . . . . . . . . Ball - 1/4 in. Dia.
13 . . . . . . . . . . 1 . . . . . . . . . . . 13911 . . . . . . . . . . . . . . . Main Drive Gear
14 . . . . . . . . . . 1 . . . . . . . . . . . 19210 . . . . . . . . . . . . . . . Program Wheel
15 . . . . . . . . . . 21 . . . . . . . . . . 15493 . . . . . . . . . . . . . . . Roll Pin
16 . . . . . . . . . . 1 . . . . . . . . . . . 13018 . . . . . . . . . . . . . . . Idler Shaft
17 . . . . . . . . . . 1 . . . . . . . . . . . 13312 . . . . . . . . . . . . . . . Spring - Idler
18 . . . . . . . . . . 1 . . . . . . . . . . . 13017 . . . . . . . . . . . . . . . Idler Gear
19 . . . . . . . . . . 1 . . . . . . . . . . . 13164 . . . . . . . . . . . . . . . Drive Gear
20 . . . . . . . . . . 1 . . . . . . . . . . . 13887 . . . . . . . . . . . . . . . Motor Mounting Plate
21 . . . . . . . . . . 1 . . . . . . . . . . . 18743 . . . . . . . . . . . . . . . Motor - 120V., 60 Hz.
19659 . . . . . . . . . . . . . . . Motor - 24V., 60 Hz.
22 . . . . . . . . . . 2 . . . . . . . . . . . 13278 . . . . . . . . . . . . . . . Screw, Motor Mounting
23 . . . . . . . . . . 1 . . . . . . . . . . . 13830 . . . . . . . . . . . . . . . Drive Pinion - Program Wheel
24 . . . . . . . . . . 1 . . . . . . . . . . . 13831 . . . . . . . . . . . . . . . Clutch - Drive Pinion
25 . . . . . . . . . . 1 . . . . . . . . . . . 14276 . . . . . . . . . . . . . . . Spring
26 . . . . . . . . . . 1 . . . . . . . . . . . 14253 . . . . . . . . . . . . . . . Spring Retainer
27 . . . . . . . . . . 3 . . . . . . . . . . . 11384 . . . . . . . . . . . . . . . Screw - Timer Hinge and Ground Wire
28 . . . . . . . . . . 1 . . . . . . . . . . . 13881 . . . . . . . . . . . . . . . Hinge Bracket
29 . . . . . . . . . . 3 . . . . . . . . . . . 14087 . . . . . . . . . . . . . . . Insulator
30 . . . . . . . . . . 1 . . . . . . . . . . . 10896 . . . . . . . . . . . . . . . Switch
31 . . . . . . . . . . 1 . . . . . . . . . . . 15320 . . . . . . . . . . . . . . . Switch
32 . . . . . . . . . . 2 . . . . . . . . . . . 11413 . . . . . . . . . . . . . . . Screw - Switch Mounting
33 . . . . . . . . . . 1 . . . . . . . . . . . 14007 . . . . . . . . . . . . . . . Decal - Time of Day
34 . . . . . . . . . . 1 . . . . . . . . . . . 14045 . . . . . . . . . . . . . . . Decal - Instructions
Not Shown. . . . 1 . . . . . . . . . . . 13902 . . . . . . . . . . . . . . . Harness
Not Shown. . . . 2 . . . . . . . . . . . 12681 . . . . . . . . . . . . . . . Wire Connector
Not Shown. . . . 1 . . . . . . . . . . . 15354-01 . . . . . . . . . . . . . Ground Wire 17748-01 F.E
®
Printed in U.S.A.
Page 11
MODEL 2850
Manual Drive Assembly
1
11
2
6
7
9
10
3
4
8
Page 12
Printed in U.S.A.
MODEL 2850
Manual Drive Assembly
Parts List
Item No. Quantity Part No. Description
1. . . . . . . . . . . 1 . . . . . . . . . . . 12593 . . . . . . . . . . . . . . . Back Plate
2. . . . . . . . . . . 1 . . . . . . . . . . . 12592 . . . . . . . . . . . . . . . Lever Position Bracket
3. . . . . . . . . . . 1 . . . . . . . . . . . 12596 . . . . . . . . . . . . . . . Pivot Screw
4. . . . . . . . . . . 1 . . . . . . . . . . . 12707 . . . . . . . . . . . . . . . Spring Washer
5. . . . . . . . . . . 1 . . . . . . . . . . . 10909 . . . . . . . . . . . . . . . Pin, Link (Not Shown)
6. . . . . . . . . . . 1 . . . . . . . . . . . 11235 . . . . . . . . . . . . . . . Nut
7. . . . . . . . . . . 1 . . . . . . . . . . . 12594 . . . . . . . . . . . . . . . Valve Position Lever
8. . . . . . . . . . . 2 . . . . . . . . . . . 10231 . . . . . . . . . . . . . . . Screw - Valve Mounting
9. . . . . . . . . . . 1 . . . . . . . . . . . 60224 . . . . . . . . . . . . . . . Cover Assembly
10 . . . . . . . . . . 1 . . . . . . . . . . . 12597 . . . . . . . . . . . . . . . Valve Position Label - Softener
1 . . . . . . . . . . . 14219 . . . . . . . . . . . . . . . Valve Position Label - Filter
11 . . . . . . . . . . 4 . . . . . . . . . . . 10300 . . . . . . . . . . . . . . . Screw - Cover Mounting
Printed in U.S.A.
Page 13
MODEL 2850
No Hard Water Bypass Piston Assembly
(See opposite page for parts list)
1
2
1600
1700
3
8
9
4
5
6
7
Page 14
Printed in U.S.A.
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