Maytag ST Series User manual

®
UPC
W11572554A
Certied by
International Association of Plumbing and Mechanical O󰀩cials (IAPMO) R&T
NSF/ANSI 42, 44, 61 & 372 · IPC · IRC
Reference Performance Data Sheet
WATER TREATMENT SYSTEM
OPERATION MANUAL
ST SERIES

2
TABLE OF CONTENTS
WATER TREATMENT SYSTEM SAFETY ...................................................................................................... 3
INTRODUCTION .............................................................................................................................................. 4
Main Parts .......................................................................................................................................................... 4
INSPECTION .................................................................................................................................................... 5
Valve Layout ....................................................................................................................................................... 6
Mineral Tank ....................................................................................................................................................... 6
PARTS AND FEATURES ................................................................................................................................. 6
Control Layout .................................................................................................................................................... 6
Brine Tank........................................................................................................................................................... 6
EQUIPMENT DIMENSIONS ............................................................................................................................ 7
SYSTEM LAYOUT ............................................................................................................................................ 8
SYSTEM SPECIFICATIONS ........................................................................................................................... 9
Location Requirements..................................................................................................................................... 10
INSTALLATION INSTRUCTIONS ................................................................................................................. 10
Electrical Requirements.................................................................................................................................... 10
Mechanical Requirements.................................................................................................................................11
General Requirements ......................................................................................................................................11
EQUIPMENT INSTALLATION ....................................................................................................................... 11
Bypass Valve Operation ................................................................................................................................... 12
Brine Line and Safety Brine Valve ................................................................................................................... 13
Connections...................................................................................................................................................... 13
Safety Brine Valve Assembly ........................................................................................................................... 13
................................................................................................................ 14
Media Volume, Salt and Capacity Settings....................................................................................................... 15
Cycles and Softening Set Up............................................................................................................................ 15
SYSTEM OPERATION ................................................................................................................................... 17
Cycle Sequence ............................................................................................................................................... 19
Softener System Setup..................................................................................................................................... 20
User Display Settings ....................................................................................................................................... 25
Diagnostics....................................................................................................................................................... 27
Valve History..................................................................................................................................................... 29
PLACING WATER SYSTEM INTO OPERATION ........................................................................................ 31
................................................................................................................ 35
DRAWINGS AND PART NUMBERS ............................................................................................................. 35
Control Valve - Front Cover and Drive Assembly ............................................................................................. 36
Brine Tank Assembly and Parts List ................................................................................................................. 37
Mineral Tank Assembly, Valve Cover, and Parts List........................................................................................ 38
Control Valve - Drive Cap, Piston, Regenerant Piston, and Stacker Assembly................................................ 39
Control Valve - Injector Cap and Injector......................................................................................................... 40
 ............................................................................................ 41
.................................................................................................................... 42
Water Meter, Meter Plug, and Mixing Valve...................................................................................................... 43
Bypass Valve .................................................................................................................................................... 44
Bypass Fitting Packages .................................................................................................................................. 45
BYPASS FITTING PACKAGES .................................................................................................................... 45
Bypass Fitting Packages .................................................................................................................................. 46
Bypass Fitting Packages .................................................................................................................................. 47
Bypass Fitting Packages .................................................................................................................................. 48
Bypass Fitting Packages .................................................................................................................................. 49
TROUBLESHOOTING ................................................................................................................................... 50
PERFORMANCE DATA SHEET ................................................................................................................... 56
PERFORMANCE DATA SHEET ................................................................................................................... 57
Warranty ........................................................................................................................................................... 58
Notes ................................................................................................................................................................ 59

3
You can be killed or seriously injured if you don't
immediately follow instructions.
You can be killed or seriously injured if you don't
follow instructions.
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and
tell you what can happen if the instructions are not followed.
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and on your appliance.
Always read and obey all safety messages.
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol and either the word
“DANGER” or “WARNING.” These words mean:
DANGER
WARNING
WATER TREATMENT SYSTEM SAFETY

4
IMPORTANT:
result in personal injury or damage to the equipment.
This purpose of this installation manual is to guide the
installer through the installation and operation process of
MAYTAG®
This manual is a reference and not included in every
system installation situation. The technician installing this
equipment must have:
Training in the MAYTAG®series controllers.

proper control settings.
Basic plumbing skills.
The directional instructions “left” and “right” are
determined by looking at the front of unit.
Inspect the unit for damage or missing parts.
Contact your supplier if any discrepancies exist.


Brine Well Assembly
Water Bypass
Plumbing Connectors
Left Right
INTRODUCTION
Outlet
Main Parts
Inlet
Figure 1: Typical Inlet/Outlet Piping and
Valves for Proper Startup and Servicing
Outlet
Treated
Water
Supply
Inlet
Untreated
Water
Supply

5
Remove system from carton:
1. Remove the box top from the system.
2. 
3. 󰀨
4. Remove the components from the shipping carton (bypass box, brine tube assembly, plumbing
connectors & brine tubing)
5. 
To assemble the Salt Tank:
1. 
One to a drain and one to the valve.
2. 
3. 
4. 
holes in the side of the brine tank.
5. 
IMPORTANT: 
back quickly, the particles may enter the valve. If this happens, the valve may need to be disassembled and
cleaned.
1. Stand the tank up and in position.
2. 
Figure 2
INSPECTION

inspected for damage.
If any parts are damaged or missing, contact your supplier.
IMPORTANT:

6
1. Tank Jacket Cover 5. Mineral Tank
2. Tank Jacket Sleeve 6. Upper Basket
3. Tank Jacket 7. Distributor Asy
4. Valve
1. Rell Flow Control Fitting 3. Untreated Water Inlet
2. Drain Fitting 4. Treated Water Outlet
1
3
1
2
3
4
5
6
1. Face Cover Assembly 4. Drive Bracket Asy
2.Circuit Board 5. Drive Gear 12x36
3. Motor 6. Drive Gear Cover
1
2
3
45
6
1. Cover 6. Air Check
2. Brine Tank 7. Float
3. Brine Well 8. Brine Valve Asy
4. Brine Well Cap 9. Tubing
5. Overow Fitting
7
2
4
PARTS AND FEATURES
Figure 3
Figure 4
Figure 5
Figure 6
1
48
2
37
5
6
9
Valve Layout Control Layout
Mineral Tank Brine Tank

7
Dimensions 10 x 44” Tank
(25.4 x 111.76 cm)
1 0 x 5 4 ” T a n k
(25.4 x 137.16 cm)
13 x 54” Tank
(33.02 x 137.16 cm)
A 44.25” (112.39 cm) 54.25” (137.79 cm) 54.25” (137.79 cm)
B 52.0” (132.08 cm) 62.0” (157.48 cm) 62.0” (154.9 cm)
C 41.25” (104.77 cm) 41.25” (104.77 cm) 41.25” (104.77 cm)
D 52.0” (132.08 cm) 62.0” (157.48 cm) 62.0” (157.48 cm)
E 47.0” (119.38 cm) 57.0” (144.78 cm) 57.0” (144.78 cm)
F 32.0” (81.28 cm) 32.0” (81.28 cm) 32.0” (81.28 cm)
G 35.31” (89.68 cm) 35.31” (89.68 cm) 35.31” (89.68 cm)
EQUIPMENT DIMENSIONS
A
B
CE
D
9.7 (24.6)
16.0 (40.6)
16.0 (40.6)
25.7 (65.2)
11.5 (29.2)
Inlet - Outlet
3 (7.6) on Center
NOTE:
7 (17.7) height for
removal of valve cover
Figure 7: Equipment Dimensions
F
G
Dimensions are given in: In (cm)
TM

8
Figure 8: Standard Basement Before Installation (Cold water lines shown)
SYSTEM LAYOUT
Outside
Faucet
Kitchen
Toilet
Bath
Tub Lavatory
Water
Heater
Hot Water
Outlet
Outside
Faucet
Laundry Tub
Pump
Or
Meter
Floor Drain
Figure 9: Treated Water Flow Diagram
Hot Water
Outlet
Outside
Faucet
Outside
Faucet
Kitchen
Toilet
Bath
Tub Lavatory
Grounding
Strap
Untreated Water
Treated Water
Water
Rener Laundry Tub
Water
Heater
Pump
Or
Meter
Floor Drain
Untreated WaterUntreated Water
Treated WaterTreated Water

9
Model Number 3M-ST32-XXX 3M-ST40-XXX 3M-ST48-XXX 3M-ST64-XXX 3M-ST80-XXX
Recharge Style     
Mineral Tank Size 10” x 44” 10” x 54” 10” x 54” 13” x 54” 13” x 54”
Resin Volume 1.00 ft³ 1.25 ft³ 1.50 ft³ 2.00 ft³ 2.50 ft³
Recharge (Salt) Tank Size 16” x 40” 16” x 40” 16” x 40” 16” x 40” 16” x 40”
Salt Storage 338 lbs 338 lbs 338 lbs 338 lbs 338 lbs
Drain Water Rate 2.7 gpm 2.7 gpm 2.7 gpm 4.2 gpm 4.2 gpm
Service Connection Size 1” NPT 1” NPT 1” NPT 1” NPT 1” NPT
Drain Connection Size     
Recharge (Brine) Connection
Size
    
Typical Installation Space
Requirement
28”W x 20”D x 62”H 28”W x 20”D x 72”H 28”W x 20”D x 72”H 28”W x 20”D x 72”H 28”W x 20”D x 72”H
Shipping Weight 104 lbs 121 lbs 134 lbs 174 lbs 199 lbs
Model Number 3M-STR32-XXX 3M-STR32XC-XXX 3M-STR40-XXX 3M-STR64-XXX
Recharge Style    
Mineral Tank Size 10” x 44” 10” x 54” 10” x 54” 13” x 54”
Resin Volume 1.00 ft³ 1.00 ft³ 1.25 ft³ 2.00 ft³
Recharge (Salt) Tank Size 16” x 40” 16” x 40” 16” x 40” 16” x 40”
Salt Storage 338 lbs 338 lbs 338 lbs 338 lbs
Drain Water Rate 2.7 gpm 2.7 gpm 2.7 gpm 4.2 gpm
Service Connection Size 1” NPT 1” NPT 1” NPT 1” NPT
Drain Connection Size    
Recharge (Brine) Connection
Size
   
Typical Installation Space
Requirement
28”W x 20”D x 62”H 28”W x 20”D x 72”H 28”W x 20”D x 72”H 28”W x 20”D x 72”H
Shipping Weight 116 lbs 127 lbs 133 lbs 192 lbs
SYSTEM SPECIFICATIONS

10
There are no user serviceable parts in the AC adapter,
motor, or PC board, in the event of a failure, these parts
must be replaced.
All electrical connections must be completed
according to the local codes.

the appliance.
Plug the AC adapter into an electrical outlet that is not



Indoor Location Requirements
IMPORTANT:
For indoor location of the Water Treatment System, make


Make sure to maintain the space to access the
equipment for maintenance and adding regenerant
(salt) to brine tank.
Operating ambient temperature: 34°F-120°F
(1°C-49°C).


120 psi (1.38 bar - 8.27 bar).
Maintain constant electrical supply to operate the
control.


Local drain for discharge as close as possible to the
appliance.
󰀨
Must meet any local and state codes for site of
installation.
Valve is designed for minor plumbing misalignments.

Make sure that all the soldered pipes are fully cooled
before attaching plastic valve to the plumbing.
Outdoor Location Requirements
IMPORTANT:
Place the unit at the dry location only, unless listed as

use.


important measures are taken for outdoor location as

Moisture - Water projected by a nozzle against
󰀨
operation of the machine.
Direct Sunlight
fade or discolor over time. The integrity of the material


INSTALLATION INSTRUCTIONS
Location Requirements
Electrical Requirements
Temperature - Extreme hot or cold temperature




󰀨
unreadable but the control must continue to function.
When the temperature returns to normal operating


applications.
Insects and Dust - The controller and valve have
been designed to keep all but the smallest insects out
of the critical areas. Dust is not totally avoidable, but
󰀩

cover is recommended.