Erie water treatment IQsoft IQ-CS-9 User manual

© 2018 erie water treatment SM-EN-IQsoft-Rev2018.09
Service Manual
WATER SOFTENER
Models:
IQ-CS-
541-DC

TABLE OF CONTENT
Page 2
Table of content...................................................................................................................Page 2
Warning & Safety instructions .............................................................................................Page 3
Precautions .........................................................................................................................Page 4
Tools & Spare parts .............................................................................................................Page 5
Inspection & Maintenance checklist ....................................................................................Page 6
Maintenance, Commissioning & Service checklist ...............................................................Page 7
Inspection - Detailed description..........................................................................................Page 8
Preparation - Detailed description .......................................................................................Page 9
Maintenance - Detailed description .....................................................................................Page 10
Commissioning & Service - Detailed description ..................................................................Page 11
Troubleshooting...................................................................................................................Page 12
Default configuration parameter settings.............................................................................Page 14

WARNING & SAFETY INSTRUCTION
Page 3
•Before you begin service of the appliance, we advise you to read and to
carefully follow the instructions contained in this manual. The actual system
may differ from the pictures/illustrations/descriptions in this Service Manual.
•Failure to follow the instructions could cause personal injury or damage to the
appliance or property. Only when service is done correctly, the appliance will
offer you many years of trouble-free operation.
•Keep this Service Manual in a safe place and ensure that new technicians are
familiar with the content.
•The appliance is designed and manufactured in accordance with current safety
requirements and regulations. Incorrect service can result in unforeseen
danger for the user, for which the manufacturer cannot be held responsible.
Therefore, service should only be performed by a competent technician,
familiar and trained for this product.
•In respect of the environment, any parts should be disposed of in accordance
with Waste Electrical and Electronic Equipment requirements. Refer to
national/local laws and codes for correct recycling of the appliance.

PRECAUTIONS
Page 4
Make sure to adhere to the following precautions before and during service of the appliance:
•Before disassembling any parts from the appliance, make sure to disconnect the power
supply to prevent any damage caused by short circuit.
•Before disassembling any hydraulic parts from the appliance, make sure to:
➢put the appliance hydraulically in bypass,
➢release the pressure from the appliance.
•The appliance contains small parts that may fall out when disassembling the appliance.
•Screws:
➢Whenever reinstalling a screw into a plastic material, make sure not to damage the
original screw thread; before tightening the screw, turn it counter clockwise slowly,
until you feel the screw dropping in place in the original thread.
➢Whenever a part is fixed by means of multiple screws, always tighten the screws
evenly in a cross pattern.
•O-rings & gaskets:
➢Never remove an O-ring or gasket using a sharp tool, to prevent damage to the O-
ring or gasket.
➢When reusing an O-ring or gasket, gently clean it with a clean rag or piece of tissue
and make sure it is not damaged before reinstalling.
➢Before installing an O-ring or gasket, clean the groove or seat of the O-ring or gasket
and the corresponding sealing surface.
➢Before installing an O-ring or gasket, lubricate it by means of:
ofor dynamic seals on moving parts: food grade silicone grease, to facilitate
the assembly/insertion of the part and to reduce the friction of the
movement during operation;
ofor static friction-free seals on non-moving parts: a bit of water, to ensure a
better water tight seal.

TOOLS & SPARE PARTS
Page 5
To perform service, you will need the following tools:
•Tongue-and-groove pliers
•Pointed pliers
•Torx screwdriver
•Solenoid tool
•Small hand shovel
•Clean rag or tissue
•Brush
To perform service, you will need the following parts:
•Resin cleaner:
•Spare parts:
(We strongly advise to have certain spare parts available on-hand for preventive replacement and
troubleshooting, to be able to solve possible failures during intervention; see Recommended Spare
Parts section ‘’Exploded view” in our Technical manual.)
PN
Description
74115
Resin cleaner, 1 Ltr bottle
74114
Resin cleaner, 5 Ltr jug

INSPECTION & MAINTENANCE CHECKLIST
Page 6
We recommend to perform service as per the following schedule:
1 Year
2 Years
4 Years
1. INSPECTION (for more details see Inspection & Preparation - Detailed description)
1.1. Check the Wi-Fi connection
✓
1.2. Measure water hardness before/after appliance
✓
1.3. Record Diagnostics parameters of electronic control panel
(*) https://youtu.be/-E4BX4YGmuI
✓
1.4. Check Configuration Parameters of electronic control panel
(*) https://youtu.be/ydLkkbbLgOM
✓
1.5. Check Basic Settings of electronic control panel
(*) https://youtu.be/ReoDx0j_P8U
✓
1.6. Check appliance and surrounding area for leaks
✓
2. PREPARATION (for more details see Inspection & Preparation –Detailed description)
2.1. Disinfect appliance
✓
2.2. Depressurize appliance
✓
3. MAINTENANCE (for more details see available movies)
3.1. Refill solenoid:
(*) https://youtu.be/WbHJAvM5aV0
3.1.1. Membrane & plunger assembly
clean
replace
3.2. Back cap:
(*) https://youtu.be/txw1ENR7lqM
3.2.1. Brine draw restrictor
clean
3.2.2. Brine draw restrictor check ball
clean
3.2.3. Brine refill flow control
clean
3.2.4. Gasket
replace
3.2.5. Check disc & spring
replace
3.3. Injector:
(*) https://youtu.be/0_QQVbSJ2Jc
3.3.1. Disc
clean
3.3.2. Gasket
replace
3.3.3. Filter
clean
3.4. Valve body:
(*) https://youtu.be/KvonyWwLfeM
3.4.1. Body stem kit
clean
replace
3.4.2. Body stem seal
clean
replace
3.4.3. O-ring, seat insert small & large
clean
replace

MAINTENANCE, COMMISSIONING & SERVICE CHECKLIST
Page 7
1 Year
2 Years
4 Years
3.5. Flow meter:
(*) https://youtu.be/fOpDF-i5SyI
3.5.1. Impeller
clean
3.6. Drain solenoid:
(*) https://youtu.be/m8OY7zYuVrk
3.6.1. Filter
clean
3.6.2. Diaphragm & plunger assembly
clean
replace
3.7. Brine valve:
3.7.1. Brine valve assembly
clean
3.7.2. Brine line filter
clean
3.8. Brine Cabinet:
3.8.1. Cabinet
clean
4. COMMISSIONING (for more details see Commissioning & Service - Detailed description)
4.1. Pressurize the appliance
✓
4.2. Check appliance for leaks
✓
4.3. Check correct execution of regeneration cycles
✓
4.4. Measure water hardness after appliance
✓
5. SERVICE (for more details see Commissioning & Service - Detailed description)
5.1. Add salt if necessary and reset salt alarm
✓
5.2. Clean appliance and surrounding area
✓
5.3. Provide feedback to customer about performed works and
replaced parts
✓
5.4. Provide feedback to customer about basic operation and
maintenance of appliance
✓
5.5. Initiate delayed regeneration
✓
If additional information is needed, see the above-mentioned section.
(*) See our video’s of the disassembly & assembly of the complete valve to help you during
maintenance:
Disassembly: https://youtu.be/JXHcLfThaJg
Assembly: https://youtu.be/YQlQY4CsCU0

INSPECTION - DETAILED DESCRIPTION
Page 8
1. INSPECTION
1.1 Check the Wi-Fi connection, if need configure it again:
https://youtu.be/_P-qlbJ7ekk
1.2 Measure water hardness before/after appliance:
•Open a cold water faucet before/after the appliance
and let the water run for a few minutes.
•Take a water sample and measure the water
hardness; record the values on the Installation
Record in the Owner’s Manual.
•Close the cold water faucet.
1.3 Record Diagnostics parameters of electronic control
panel:
•Press the scroll button and hold it for 6 sec until
the display shows:
•Within 10 sec, press the down button; the display
will show:
•Press the scroll button again to advance to the
next parameter.
•Record the following parameters:
Regen X days ago
Capacity
In Srvc
TotAgeCorr
# of Regens
MP Resets
TotVol
Memory Reset
LastSet
Fill
AvgVol
Reserve
LastRgn@
***** A01 B01
1.4 Check Configuration Parameters of electronic control
panel:
•Press the scroll button and hold it for 6 sec until
the display shows:
•Within 10 sec, press the up button; the display will
show:
•If necessary, press the up or down button to
change the selected setting.
•Press the scroll button again to advance to the
next parameter.
1.5 Check Basic Settings of electronic control panel:
•Press the scroll button and hold it for 2 sec until
the display shows:
•If necessary, press the up or down button to
change the selected setting.
•Press the scroll button again to advance to the
next setting.
1.6 Check appliance and surrounding area for leaks:
•Valve body
•Bypass
•Inlet/outlet connections
•Connection between valve body and pressure tank
•Brine cabinet
•Drain line from control valve(*): there shouldn’t be
any water flow
•Brine cabinet overflow: there shouldn’t be any water
flow
(* unless appliance is in regeneration).
System Check
Units:Metric
System Check
Regen XXdays ago
Language:English

PREPARATION - DETAILED DESCRIPTION
Page 9
2. PREPARATION
2.1 Remove salt lid and main cover from brine cabinet.
2.2 Put bypass in maintenance position:
•CLOSE the outlet valve from the appliance.
•Make sure the inlet valve to the appliance remains
OPEN.
2.3 Desinfect resin bed:
•Press the scroll button repeatedly until the display
shows:
•If the control panel is left in this position, the
countdown timer will countdown to 0 sec and start
an immediate regeneration; the display will show:
•Press the scroll button repeatedly to advance the
control valve to the brine draw cycle.
•Remove the polytube from the Quick-fit elbow on
the brine valve assembly and insert it in the resin
cleaner bottle/jug.
•Let the control valve draw the correct amount of
resin cleaner (see label of resin cleaner) into the
resin bed.
•Remove the polytube from the resin cleaner
bottle/jug and insertit back in the Quick-fit elbow on
the brine valve assembly.
•Press the scroll button repeatedly to advance the
control valve back to the service cycle.
2.4 Put bypass in bypass position:
•CLOSE the inlet valve to the appliance.
•Make sure the outlet valve from the appliance
remains CLOSED.
2.5 Depressurize the softener:
•Press the scroll button repeatedly until the display
shows:
•If the control panel is left in this position, the
countdown timer will countdown to 0 sec and start
an immediate regeneration; the display will show:
•Water will run to the brine cabinet for a couple
seconds, until the appliance is depressurized.
•Press the scroll button repeatedly to advance the
control valve back to the service cycle.
2.6 Disconnect the transformer.
•Loosen the TwistLock clamp.
•Unplug the transformers output lead from the socket
on the appliances power cord.
2.7 Allow the resin cleaner to soak the resin bed for at least
20 min, while you continue with the maintenance.
After the Preparation section, we advise to perform the
recommended maintenance as mentioned below. If there are
any kind of defects during this maintenance, make sure to
replace these parts and test the performance of the system
afterwards.
Regen in 10 sec
BRINE FILL
Regen in 10 sec
BRINE FILL

MAINTENANCE –DETAILED DESCRIPTION
Page 10
3. MAINTENANCE:
CONTROL VALVE
3.1 Refill & backwash solenoid
3.1.1 Membrane & plunger assembly
3.2 Back cap
3.2.1 Brine draw restrictor,
3.2.2 Brine draw restrictor check ball,
3.2.3 Brine refill flow controller,
3.2.4 Gasket,
3.2.5 Check disc & spring:
Note: Be careful for the check ball
3.3 Injector
3.3.1 Disc,
3.3.2 Gasket,
3.3.3 Filter screen
Note: Verify that the injector is not damaged
otherwise replace it. PN: 428/5.
3.4 Valve body
3.4.1 Body stem kit,
3.4.2 Body stem seal,
3.4.3 O-ring, seat insert small & large
3.5 Flow meter
3.5.1 Impeller wheel
Note: Make sure you place it deep enough, so the Hub,
impeller is not sticking out of the elbow outlet.
Warning: Don’t use a hammer to push it in.
3.6 Drain solenoid
3.6.1 Filter screen,
3.6.2 Membrane & plunger assembly
Reassemble the valve
•Check the steps 3.1 until 3.6 above to be sure the
valve is reassembled correctly.
Check your work area, so no parts are missing in the valve.
3. MAINTENANCE:
BRINE VALVE
3.7 Brine valve
3.7.1 Brine valve assembly:
•Remove the cover of the cabinet softener (residential)
•Remove the brine well cap, top
•Remove the polytube from of the Quick-fit elbow 3/8”
3.7.2 Brine line filter:
•Remove the brine line filter from the brine line.
•Clean the brine line filter.
•Remove the brine valve assembly from the brine well
and put it aside.
•Clean all the removed parts with some hot water, so
all impurities are removed.
•Make sure the air check, ball inside is properly closing
and no dirt is left on the gasket inside.
•Install the brine valve assembly back in the brine well
•Reconnect the polytube
•Put back the brine well cap, top on the brine well
3. MAINTENANCE:
BRINE CABINET
3.8 Brine cabinet
Note: This can be done by the end-user.
3.8.1 Cabinet:
•Remove any remaining salt from the brine cabinet
and save it in a clean container, such as a plastic
bucket.
Note: If the salt at the bottom of the tank is visibly
dirty we
recommend removing it and throw it away.
•Remove the remaining salt and impurities from the
bottom of the cabinet.
•Wash out the brine cabinet with water and soap
Note: Make sure you rinse long enough, so the soap
will not enter your softener.
•Put the brine cabinet back on his original location.
•Fill the brine cabinet completely, not higher than the
brine well cap, top
•Put the cover back on the cabinet

COMMISSIONING & SERVICE –DETAILED DESCRIPTION
Page 11
4. COMMISSIONING
4.1 Pressurize the appliance:
•Put the bypass slowly back in to the service position.
•Reconnect the transformer.
•Plug the transformers output lead into the socket.
on the appliances power cord.
•Secure it by means of the TwistLock clamp.
4.2 Check appliance for leaks, when under pressure, see
inspection section
4.3 Check correct execution of regeneration cycles:
•Manually start a regeneration by pressing the scroll
button repeatedly until the display start a
countdown; wait until the immediate regeneration is
started.
•Check if the refill cycle, first cycle, fill the brine tank
Note: Check when the refill is finished, if the water
stops flowing through the polytube.
•Press the scroll button twice to access the brine
draw cycle, cycle 3 and check if the water is dropping
in the brine cabinet
•Press the scroll button until the display is back in
the service position
4.4 Measure water hardness after appliance, after
performing maintenance:
•Open a faucet nearby.
•Run the cold water for a few minutes.
•Take a water sample and measure the hardness:
OK, go to the next checkpoint.
Not OK, go to the troubleshooting section.
5. SERVICE
5.1 Add salt if necessary and reset salt alarm:
•Refill the brine tank if necessary, make sure at least
1/3 of the brine tank is full
Note: Without proper salt levels, the water softener
may not operate properly.
Warning: Don’t forget to reset the salt alarm
5.2 Clean appliance and work area
5.3 Inform the customer about the parts that were cleaned
and/or replaced with some explanation why this was
needed.
5.4 Give some explanation about their system if needed:
•Wi-Fi, salt alarm, holiday mode, …
•ask if they need some additional information about
their system.
5.5 Initiate a delayed regeneration:
•Press the scroll button until the display show
“regen @ --:--“ and leave it in this position to initiate
a delayed regeneration

TROUBLESHOOTING
Page 12
PROBLEM
CAUSE
SOLUTION
Hard (untreated) water
to service
Open or defective bypass
Close or replace bypass
Appliance in regeneration
Wait until regeneration finishes or manually
advance regeneration to end
No salt in brine cabinet
Add salt and initiate regeneration manually
Salt bridging
Break salt bridge(s) and initiate regeneration
manually
Change in raw water hardness
Measure the hardness of the incoming untreated
water and adjust programming accordingly
Appliance fails to regenerate
Refer to problem “Appliance fails to regenerate”
Improper brine draw
Refer to problem “Improper brine draw”
Decreasing exchange capacity of resin
Clean or replace resin bed
Loss of resin
Refer to problem “Loss of resin”
Leak at riser tube
Verify that riser tube is seated correctly and is not
cracked
Residual hardness in
treated water
Bypass not completely closed
Close bypass
Appliance is overrunning its softening capacity
Measure the hardness of the incoming untreated
water and adjust programming accordingly
Verify operation of flow meter
Appliance fails to
regenerate
Faulty electrical supply
Verify electrical service (fuse, transformer,...)
Defective flow meter
Verify operation of flow meter
Defective PCB
Replace PCB
Defective drain solenoid
Replace drain solenoid
Control valve does not switch to regeneration
position
Check operating pressure; must be higher than 1,4
bar
Appliance uses too
much salt
Excessive water in brine cabinet
Refer to problem “Excessive water in brine cabinet”
System regenerates too frequently
Measure the hardness of the incoming untreated
water and adjust programming accordingly
Excessive water in
brine cabinet
Improper brine draw
Refer to problem “Improper brine draw”
Improper setting of refill cycle
Verify setting of refill cycle
Missing refill flow control
Verify that refill flow control is installed and
properly sized
Leak from control valve to brine cabinet
Clean or replace plunger and solenoid diaphragm of
refill solenoid
Check seal between brine draw check ball and brine
draw restrictor
Salt taste in treated
water
Improper setting of brine draw/slow rinse cycle
Verify setting of brine draw/slow rinse cycle
Excessive water in brine tank
Refer to problem “Excessive water in brine tank”
Improper brine draw
Refer to problem “Improper brine draw”
Loss of water pressure
Mineral or iron build-up in resin tank
Clean resin bed and control valve; increase
regeneration frequency
Plugged lower and/or upper distributor
Verify that distributors are free of debris
Crushed lower and/or upper distributor
Replace distributor(s)
Drain line from control
valve flows
continuously
Appliance in regeneration
Wait until regeneration finishes or manually
advance regeneration to end
Drain solenoid stuck in open position
Clean drain solenoid
Defective PCB
Replace PCB
Drain line from brine
cabinet overflow flows
continuously
Excessive water in brine cabinet
Refer to problem “Excessive water in brine cabinet”
Leak between control valve and pressure tank
Verify seal between control valve and pressuretank
Control valve fails to
refill brine tank
Improper setting of refill cycle
Verify setting of refill cycle
Plugged refill flow control
Clean refill flow control
Refill solenoid not opening
Verify operation of refill solenoid
Loss of resin
Lower and/or upper distributor damaged
Replace distributor(s)
Leak between riser tube and upper distributor
Verify that riser tube is seated correctly and is not
cracked

TROUBLESHOOTING
Page 13
PROBLEM
CAUSE
SOLUTION
Improper brine draw
Low operating pressure
Check operating pressure; must be higher than 1,4
bar
Plugged injector and/or brine draw restrictor
Clean injector and/or brine draw restrictor
Plugged injector filter
Clean injector filter
Restricted drain line
Verify drain line for kinks or restrictions
Restricted brine line
Verify brine line for kinks or restrictions
Leak in brine line
Verify brine line and connections for air leakage
No water in brine tank
Refer to problem “Control valve fails to refill brine
tank”
Fast rinse solenoid remains open
Verify operation of fast rinse solenoid

DEFAULT CONFIGURATION PARAMETER SETTINGS
Page 14
Model
IQ-CS-
Resin
9
12
18
26
Units
Metric
Metric
Metric
Metric
MaintInt (mths)
24
24
24
24
Exchange capacity per liter resin (°f M3/L) (1) (2)
3,5
4,5
5,1
5,1
Age correction (%)
1.0
1.0
1.0
1.0
Resin (liters)
9
12
18
26
Override (days)
7
7
7
7
Cycle 1: REFILL (sec) (2)
198
264
396
572
Cycle 2: BRINE PREPARATION (min)
15
15
15
15
Cycle 3: BACKWASH (min)
0
0
0
0
Cycle 4: BRINE DRAW/SLOW RINSE (min)
24
24
35
53
Cycle 5: FAST RINSE (min)
2
3
4
6
Regen
Dlyd/Immd
Dlyd/Immd
Dlyd/Immd
Dlyd/Immd
Regen @
2:00
2:00
2:00
2:00
Salt alarm
ON
ON
ON
ON
Alarm interval (Regens)
8
8
7
9
Rsrv
Variable
Variable
Variable
Variable
Auxilliary contact 2
Regen
Regen
Regen
Regen
(1) When the Hardness Unit is changed in the Basic Settings, the Exchange capacity per liter resin is automatically converted to the new Hardness Unit.
(2) When the Exchange capacity per liter resin is changed, the refill cycle time needs to be adjusted accordingly.

Page 15

Page 16
Manufactured & Assembled by
erie water treatment
a division of Aquion, Inc.
www.eriewatertreatment.com