EWT EWT G20 User manual

Water Filter&Softener

READ THIS PAGE FIRST 4
WATER CONDITIONER BASICS 5
SOFTENER SYSTEM SPECIFICATIONS 6
SOFTENER SYSTEM DIMENSIONS 7
UNPACK & INSPECT YOUR WATER SOFTENER 8
CHECK THE VALVE SERIAL NUMBER 9
CHECK THE SOFTENER SERIAL NUMBER 10
PARTS BREAKDOWN 11
PREINSTALLATION INSTRUCTIONS 15
INSTALLATION INSTRUCTIONS 15
WATER BYPASS 17
PROGRAMMING GUIDE 18
FILTER CARTRIDGE LIFE SETTINGS 21
STARTUP INSTRUCTIONS 22
MAINTENANCE INSTRUCTIONS 24
TROUBLE SHOOTING GUIDE 31

READ THIS PAGE FIRST
BEFORE STARTING INSTALLATION
Personal injury or property damage could result if you fail to
follow instructions in this manual.
It is recommended to annually inspect and service the
control valve. Frequent cleaning and/or replacement
of piston, seals, and/or spacers may be necessary
depending on how harsh the conditions are.
This system and its installation must comply with state
and local regulations. Check with your local public works
department for plumbing and sanitation codes. Local codes
should be followed in the event the codes con ict with any
content in this manual.
This water Softener must be operated on pressures
between 0.2MPa(30 psi) to 0.86MPa(125 psi). If the water
pressure is higher than 0.86MPa(125 psi), use a pressure
reducing valve in the water supply line to the softener.
This unit must be operated at temperatures between 4°C -
43°C（40°F and 110°F)
Do not use this water softener on hot water supplies.
Do not install this unit where it may be exposed to wet
weather, direct sunlight, or temperatures outside of the
range speci ed above.
This appliance can be used by children aged from 8
years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe way
and understand the hazards involved.
You must read and understand the contents of this manual
before installing or operating your water softener.
Softeners are exposed to high levels of iron,
manganese, sulfur, and sediments. Damage to pistons,
seals, and/or spacers within the control valve are not
covered in this warranty due to the harsh environment.
Do not use water that is microbiologically unsafe
without adequate disinfection before or after this
system.
This publication is based on information available when
approved for printing. Continuing design refinement
could cause changes that may not be included in this
publication.
Apply provided NSF certified lubricant to all o-rings
during installation. Do not use pinched or damaged
o-rings during installation.
The appliance is only to be used with the power supply
unit provided with the appliance.
The appliance must only be supplied at safety extra low
voltage corresponding to the marking on the appliance.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by
children without supervision.
INSTALL
NOTES &
SAFETY
MESSAGES
Watch for the
following messages
in this manual:
CAUTION
EXAMPLE:
Disassembly while under pressure
WARNING
Electrical Shock Hazard! Unplug the unit before removing
the cover or accessing any internal control parts.
EXAMPLE:
EXAMPLE:
Check and comply with
your state and local
codes. You must follow
these guidelines.
NOTE

WATER CONDITIONER BASICS
WHAT IS HARD WATER AND HOW IT IS SOFTENED
CAUTION DO NOT USE WATER FILTERED THROUGH THIS SOFTENER WHERE THE WATER
IS MICROBIOLOGICALLY UNSAFE OR THE WATER IS OF UNKNOWN QUALITY.
THE WATER MUST BE DISINFECTED BEFORE OR AFTER THE UNIT.

SOFTENER SYSTEM SPECIFICATIONS
445
2
24
1
4.3
Pipe Size 3/4” or 1”
Carton Size
Water Supply

SOFTENER SYSTEM DIMENSIONS
0817 TANK
490mm
465mm
240mm

UNPACK & INSPECT YOUR WATER SOFTENER
ACCESSORIES CONTENTS :
IF THERE IS A SEVERE LOSS IN WATER PRESSURE WHEN THE SOFTENER UNIT IS INITIALLY PLACED IN SERVICE,
THE SOFTENER TANK MAY HAVE BEEN LAID ON ITS SIDE DURING TRANSIT. IF THIS OCCURS, BACKWASH THE
SOFTENER TO "RECLASSIFY" THE MEDIA.
Elbow Adaptor(1/2”)
1× Bypass Tool
1× Transformer
1× Grease Packet
Manual
1× Manual
1× Faucet
1× Faucet Connector
Adaptor O-ring

CHECK THE VALVE SERIAL NUMBER AND VALVE TYPE
(22018885): Valve part #
(O)YEAR: "R" stand for year 2021,"Q" stand for year 2020, "P" stand
for year 2019, "O" stand for year 2018, "N" stand for year 2017, "M"
stand for year 2016, "L" stand for year 2015...
(5)MONTH: 1(JAN), 2(FEB), 3(MAR), 4(APRIL), 5(MAY), 6(JUNE),
7(JULY), 8(AUG), 9(SEP), A(OCT), B(NOV), C(DEC)
(G)DATE: 1 2 3 4 5 6 7 8 9 (A)10 (B)11 (C)12 (D)13 (E)14
(F)15 (G)16 (H)17 (I)18 (J)19 (K)20 (L)21 (M)22 (N)23 (O)24
(P)25 (Q)26 (R)27 (S)28 (T)29 (U)30 (V)31
(0005): Batch code
VALVE SERIAL NUMBER:
Valve Part # Year
22018885O5G0005
Month Date Batch code

CHECK THE SOFTENER SERIAL NUMBER
(00250059): Softener part #
(O)YEAR: "R" stand for year 2021,"Q" stand for year 2020, "P" stand for year
2019, "O" stand for year 2018, "N" stand for year 2017, "M" stand for year
2016, "L" stand for year 2015, "K" stand for year 2014...
(5)MONTH: 1(JAN), 2(FEB), 3(MAR), 4(APRIL), 5(MAY), 6(JUNE), 7(JULY),
8(AUG), 9(SEP), A(OCT), B(NOV), C(DEC)
(J)DATE: 1 2 3 4 5 6 7 8 9 (A)10 (B)11 (C)12 (D)13 (E)14
(F)15 (G)16 (H)17 (I)18 (J)19 (K)20 (L)21 (M)22 (N)23 (O)24 (P)25
(Q)26 (R)27 (S)28 (T)29 (U)30 (V)31
(0001): Batch code
Valve Part # Year
00250059O5J 0001
Month Date Batch code
00250059O5J0001

PARTS BREAKDOWN
SOFTENER PARTS LIST
05056134
05005662 Elbow Connector(3/8“QC)
21499032
20090006
07050153 Display Support Rack
13000486 Screw ST2.6×8
05031023H Display PCB
13000487 Screw ST2.6×6
Display Back Cover
07500817E Pressure Tank 0817
07050155
07050076
02150039
07040068 Softener Cabinet
26051052
A1
A3 A2
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13 A14
A15
A16
A17
A18
A19
A26
A21
A22
A23
A24
A25
A22
A27
A28
A29
A30
A31
A20

VALVE BODY PARTS LIST
B1 05056508 Screw-M5×12(with Washer) 5
B2 05030004 End Cover
05030013 O-ring-φ30×2.65
05056084 Screw-ST3.5×13
07060007 Valve Bottom Connector
26010103 D-tube O-ring 1
05056063 Tank O-ring
05030001 Valve Body
05056073 Seal
05056204 Spacer
05056520 Piston
05056022B Piston Retainer
05056097 Piston Pin
B14 05005605 End Plug
B15 05030002B Piston Rod
B16 02170054 Piston Assy
B17 05056047 End Plug Retainer
B18 05056087 Screw-M5×12
B19 05056088 Screw-M5×16
B20 05056180M Brine Valve Injector Stem Assy
B21 05056066 O-Ring-φ11×2 1
B22 05056037 Air Disperser
05056067 O-Ring-φ7.8×1.9
05056177 Injector Body
05056103 Injector Screen
30040083 Injector Throat(Red) 1
30040084 Injector Nozzle(Red)
05056205 O-RING(23.9×1.8)
05056029 Injector Cover
05056086 Screw-M5×30
05056172 Secure Clip-S
05056188 DLFC(2.0GPM)
05056134 O-ring 12×2
B34 05010082 Drain Elbow
B35 05056035 BLFC Button Retainer
B36 05056076 BLFC(0.3GPM)
B37 05056138 O-Ring-φ14×1.8
B38 05056100B BLFC Copper Fitting
B39 05056033 BLFC Ferrule
B40 05056108 BLFC Fitting Nut
B41 21499033 Brine Line QC Elbow

POWER HEAD PARTS LIST
Screw-ST3.5×13
Power Head Cover
Motor
05030006 Mounting Plate
05010037 Screw-ST2.9×10 1
05030010F Main Pcb
13000462 Screw-4.2×12(with washer)
05010023 Magnet-φ3×2.7
C10 05030008 Brine Gear
C11 13000463 Screw-ST2.9×13(with washer)
C12 05030007 Main Gear
C13 05030009 Drive Gear
C14 05056098 Motor Pin
05030005 Power Head Housing 1
05010046 Meter Cable Clip 1
05010108 Meter Cable 1
Communication Cable 1
30110005 Rubber Sleeve
05056013 Communication Cable Clip
05010029B Power Cable
05010035 Power Cable Clip

BYPASS PARTS LIST
05010106
02170055 Meter Assy
05040129 Meter Ball
D1
D2
D3
D4
D5 D7
D6
D9
D10
D11
D12
D8
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22

INSTALLATION INSTRUCTIONS
PRE-INSTALLATION INSTRUCTIONS
Contact your local distributor to have a complete water analysis and check your water hardness
on your water supplier, this will keep your conditioner in proper working.
YOU MUST FOLLOW ALL GOVERNMENT CODES AND REGULATIONS GOVERNING THE
INSTALLATION OF THESE DEVICES.
Fig.1
Electrical Panel
Cold Soft Water
Hot Soft Water
Water Heater Filter&Softener
Drain
Water Meter
Raw Water
To Outdoors
Hard
Filtered
Water
Ground Strap
DETERMINE THE CORRECT LOCATION OF THE WATER CONDITIONING EQUIPMENT
Select the location of your softener with care. Review the various conditions below to
determine a proper location:
1. Locate as close as possible to the water supply source.
2. Locate as close as possible to a  oor or laundry tub drain.
3. Locate in correct relationship to other water conditioning equipment (See Fig. 1).
4. Softener should be located in the supply line before the water heater. Temperatures above
48.8℃(120°F) damage softeners.
5. Do not install a softener in a location where freezing temperatures occur. Freezing may
cause permanent damage to this type of equipment and will void the factory warranty.
6. Allow suffi cient space around the unit for easy servicing.
7. Determine if additional plumbing is required if your water source is a community water
supply, a public water supply or you wish to bypass water used for a geothermal heat pump,
lawn sprinkling, out-buildings or other high demand applications, refer to Fig. 1）.
8. Keep the softener out of direct sunlight. Heat build up from direct sunlight may soften and
distort plastic parts.

CAUTION
CAUTION
NEVER INSERT THE DRAIN LINE DIRECTLY
INTO A DRAIN, SEWER LINE, OR TRAP.
ALWAYS ALLOW AN AIR GAP BETWEEN
THE DRAIN LINE AND THE WASTE WATER.
THIS WILL PREVENT THE POSSIBILITY OF
SEWAGE BEING BACK-SIPHONED INTO
THE CONDITIONER.
THE WASTE CONNECTION OR DRAIN
OUTLET SHALL BE DESIGHED AND
CONSTRUCTED TO PROVIDE AN
AIR-GAP TO THE SANITARY WASTE
SYSTEM OF 2 PIPE DIAMETERS OR
1 INCH(25MM). (WHICHEVER IS
LARGER)
TOOLS REQUIRED FOR INSTALLATION:
Two adjustable wrenches.
Additional tools may be required if modi cations to home plumbing are required.
Use copper, brass, or PEX pipe and  ttings.
Some codes may also allow PVC plastic pipe. Refer to local codes.
Always install the included bypass valve, or 3 shut-off valves. Bypass valves let you turn
off water to the softener for repairs, but still have water in the house pipes.
5/8” OD drain line is needed for the drain.
CAUTION
Water Pipe Inlet Water Pipe Outlet
Water Faucet
100V-120V / 220-240V
AC 50/60Hz
Drain
5/8” Drain Line
Drain Elbow
Assembly
Brine Elbow
Assembly
3/8” Brine Tube
3/8” Faucet Tube
Brine Valve
Connector
Detail

WATER BYPASS
In case of an emergency such as softener maintenance, you can isolate your water softener from
the water supply using the bypass valve located at the back of the control. In normal operation
the bypass is open with the ON/OFF knobs in line with the INLET and OUTLET pipes. To isolate the
softener, simply rotate the knobs to the BYPASS position.
You can use your water related fixtures and appliances as the water supply is bypassing the
softener. However, the water you use will be hard. To resume treated service, open the bypass valve
by rotating the knobs to SERVICE position.
Please make sure bypass knobs are completely open otherwise the unSoftenered water could
bypass through the valve.
SERVICE BYPASS
BYPASS NOT ALLOWED POSITION
Please make sure bypass knobs are completely
open otherwise the unsoftenered water could
bypass through the valve.

PROGRAMMING GUIDE
FAMILIARIZE WITH KEY PAD CONFIGURATION
This function enters the basic set up information required at the time of installation.
This function is to press and select one item to change and accepts the values
if changed.
This function is to scroll up or down the programming items and increase or
decrease the values of the settings while in the programming mode.
START UP SETTING MENU

FACTORY OPTIONS SETTINGS MENU
ADVANCED OPTIONS SETTINGS MENU
LANGUAGE
ENGLISH
UNITS
METRIC
GALLONS
HIGH EFFICIENCY
48 g/L
192 g/L
5.7 g
96 g/L
11.4 g
HIGH EFFICIENCY
Press CONFIRM
CONFIRM CONFIRM
CONFIRM
CONFIRM
CONFIRM
CONFIRM
CONFIRM
CONFIRM
CONFIRM
CONFIRM
key
Press MENU + CONFIRM
key
(3 SECONDS / BEEP)
STD CAPACITY
IRON & MN
IRON & MN
REFILL FLOWRATE
0.2 gpM
DAILY RESERVE
4 DAYS AVERAGE
1～400L
DAY OVERRIDE
OFF
RINSE OVERRIDE
OFF
1～99 REGENS
BW. OVERRIDE
OFF
FORCED REGEN.
OFF
SMART CLEAN
OFF
10Min&7Days
PROGRAMMING
COMPLETE
HARDNESS UNITS
mg/L
9.4 g
STD CAPACITY
Press key
Press key
CONFIRM
Press key
Press key
Press key
Press key
Press key
Press key
Press key
Press key
DAY OVERRIDE
OFF
1～99 DAYS
1～99 DAYS
Press key
CONFIRM
Press key
CONFIRM
Press key
CONFIRM
Press key
CONFIRM
Press key
CONFIRM
Press key
1～100 REGENS
ON

OPERATION DURING A POWER FAILURE
In the event of a power failure, the valve will keep track of the time and day. The programmed settings
are stored in a non-volatile memory and will not be lost during a power failure. If power fails while the
unit is in regeneration, the valve will  nish regeneration from the point it is at once power is restored.
If the valve misses a scheduled regeneration due to a power failure, it will queue a regeneration at the
next regeneration time once power is restored.