Sterling IM Series Service manual

www.sterlingwatertreatment.com
Churubusco, IN 46723
Phone: [phone] Fax: [phone]
Installation Instructions & Owner's Manual
12630 US Highway 33 N.
IM & INT Series

Preinstallation Instructions for Dealers Page 3
Bypass Valve Page 3-4
Installation Page 5-6
Programming Procedures for Water Softeners Page 7-8
Operating Displays for Softeners Page 9
Start-up Instructions Page 10
Troubleshooting Guide Page 11-12
Component List Page 13
Replacement Parts Page 14-15
Installation Fitting Assemblies Page 16-17
Specifications Page 18-19
Quick Reference Guide Page 20
Ten Year Limited Warranty Page 21
TABLE OF CONTENTS:

The manufacturer has set the water treatment unit's sequence of cycles, cycle times, salt dose,
exchange capacity and gallon capacity. The salt dose refill time has been preset.
The dealer should read this page and guide the installer regarding hardness, day override, and
time of regeneration, before installation:
For the installer, the following must be used:
● Set Installer Settings … Hardness (preset to 20 gpg), Day Override (preset to 14 days),
and Time of Regeneration (preset to 2 am).
● Read Normal Operating Displays
● Set Time of Day
● Read Power Loss & Error Display
Water Softeners:
During operation, the normal user displays are time of day, gallons per minute or gallons remaining
before regeneration will occur. Days remaining is an optional display but is not normally used on
metered softeners. Each of these can be viewed by pressing NEXT to scroll through them. When
stepping through any displays or programming, if no buttons are pressed within 5 minutes, the
display returns to a normal user display. Any changes made prior to the 5 minute
time out are incorporated. To quickly exit any Programming, Installer Settings, etc., press SET CLOCK.
Any changes made prior to the exit are incorporated.
If desired, two regenerations within 24 hours are possible with a return to the preset program. To do
a double regeneration:
1. Press the REGEN button once. REGEN TODAY will flash on the display.
2. Press and hold the REGEN button for three seconds until a regeneration begins.
Once the valve has completed the immediate regeneration, the valve will regenerate one more time
at the preset time.
The bypass valve is typically used to isolate the control valve from the plumbing system's water
pressure in order to perform control valve repairs or maintenance. The 1" full flow bypass valve
incorporates four positions including a diagnostic position that allows a service technician to have
pressure to test a system while providing untreated bypass water to the building.
Be sure to install bypass valve onto main control valve, before beginning plumbing
or make provisions in the plumbing system for a bypass.
The bypass body and rotors are glass filled Noryl® and the nuts and caps are glass filled
polypropylene. All seals are self-lubricating EPDM to help prevent valve seizing after long periods of
non-use. Internal "O" Rings can easily be replaced if service is required.
The bypass consists of two interchangeable plug valves that are operated independently by red
arrow shaped handles. The handles identify the direction of flow. The plug valves enable the bypass
valve to operate in four positions.
PREINSTALLATION INSTRUCTIONS FOR DEALERS:
BYPASS VALVE:
3

1.
Normal Operation Position: The inlet and outlet handles point in the direction of flow
indicated by the engraved arrows on the control valve. Water flows through the control valve for
normal operation of a water softener or filter. During the regeneration cycle this position provides
regeneration water to the unit, while also providing untreated water to the distribution
system (Fig. 1).
2.
Bypass Position: The inlet and outlet handles point to the center of the bypass. The system is
isolated from the water pressure in the plumbing system. Untreated water is supplied to the
building (Fig. 2).
3.
Diagnostic Position: The inlet handle points toward the control valve and the outlet handle points
to the center of bypass valve. Untreated supply water is allowed to flow to the system and to the
building, while not allowing water to exit from the system to the building (Fig. 3). This allows the
service technician to draw brine and perform other tests without the test water going to the
building.
NOTE: The system must be rinsed before returning the bypass valve to the normal position.
4.
Shut Off Position: The inlet handle points to the center of the bypass valve and the outlet
handle points away from the control valve. The water is shut off to the building. The water
treatment system will depressurize upon opening a tap in the building. A negative pressure in the
building combined with the softener being in regeneration could cause a siphoning of brine into
the building. If water is available on the outlet side of the softener it is an indication of
water bypassing the system (Fig. 4) (i.e. a plumbing cross-connection somewhere in the
building).
Figure 3
Figure 4
NORMAL OPERATION POSITION
Figure 1
Figure 2
BYPASS POSITION
SHUT OFF POSITION
DIAGNOSTIC POSITION
"TREATED"
WATER EXITS
SUPPLY
WATER ENTERS
SUPPLY
WATER EXITS
SUPPLY
WATER ENTERS
SUPPLY
WATER EXITS
SUPPLY
WATER ENTERS
NO
WATER EXITS
SUPPLY WATER IS
SHUT OFF FROM
THE HOUSE AND
THE VALVE
4

GENERAL INSTALLATION & SERVICE WARNINGS
The control valve, fittings and/or bypass are designed to accommodate minor plumbing
misalignments. There is a small amount of "give" to properly connect the piping but the water
softener is not designed to support the weight of plumbing.
Do not use Vaseline, oils, other hydrocarbon lubricants or spray silicone anywhere. A silicone
lubricant may be used on black "O" Rings, but is not necessary. Avoid any type of lubricants,
including silicone, on red or clear lip seals.
Do not use pipe dope or other sealants on threads. Teflon® tape must be used on the threads of the
1" NPT inlet and outlet and on the threads for the drain line connection. Teflon® tape is not used
on the nut connections or caps because "O" Ring seals are used. The nuts and caps are designed
to be unscrewed or tightened by hand or with the special plastic Service Wrench, #CV3193.
If necessary pliers can be used to unscrew the nut or cap. Do not use a pipe wrench to tighten nuts
or caps. Do not place screwdriver in slots on caps and/or tap with a hammer.
SITE REQUIREMENTS
● water pressure -- 25-100 psi ● current draw is 0.5 amperes
● water temperature -- 33-100°F (0.5-37.7°C) ● the plug-in transformer is for
● electrical -- 115/120 V, 60 Hz uninterrupted outlet dry locations only
● the tank should be on a firm level surface
1. The distance between the drain and the water conditioner should be as short as possible.
2. Since salt must be periodically added to the brine tank, it should be located where it is easily
accessible.
3. Do not install any water conditioner with less than 10 feet of piping between its outlet and the
inlet of a water heater.
4. Do not locate unit where it or its connections (including the drain and overflow lines) will ever be
subjected to room temperatures under 34°F.
INSTALLATION:
MUNICIPAL INSTALLATION
WELL WATER INSTALLATION
5

6.
INLET/OUTLET PLUMBING: Be sure to install Bypass Valve onto main control valve
before beginning plumbing. Make provisions to bypass outside hydrant and cold hard water
lines at this time. Install an inlet shutoff valve and plumb to the unit's bypass valve inlet located
at the right rear as you face the unit. There are a variety of installation fittings available. They
are listed under Installation Fitting Assemblies, pages 16-17. When assembling the installation
fitting package (inlet and outlet), connect the fitting to the plumbing system first and then
attach the nut, split ring, and "O" Ring. Heat from soldering or solvent cements may damage
the nut, split ring, or "O" Ring. Solder joints should be cool and solvent cements should be set
before installing the nut, split ring, and "O" Ring. Avoid getting solder flux, primer, and solvent
cement on any part of the "O" Rings, split rings, bypass valve, or control valve. If the
building's electrical system is grounded to the plumbing, install a copper grounding strap
from the inlet to the outlet pipe. Plumbing must be done in accordance with all applicable
local codes.
7.
DRAIN LINE: First, be sure that the drain can handle the backwash rate of the system.
Solder joints near the drain must be done prior to connecting the drain line flow control fitting.
Leave at least 6" between the drain line flow control fitting and solder joints. Failure to do this
could cause interior damage to the flow control. Install a 1/2" I.D. flexible plastic tube to the
Drain Line Assembly or discard the barbed fitting and use 3/4" NPT fitting of rigid pipe
(recommended). If the backwash rate is greater than 7 gpm, use a 3/4" drain line. Where
the drain line is elevated but empties into a drain below the level of the control valve, form a
7" loop at the discharge end of the line so that the bottom of the loop is level with the drain
connection on the control valve. This will provide an adequate anti-siphon trap. Piping the
drain line <10 ft is normally not a problem. Be sure adequate pressure is available
(40-60 psi is recommended). Where the drain empties into an overhead sewer line, a sink-
type trap must be used. Run drain tube to its discharge point in accordance with
plumbing codes. Pay special attention to codes for air gaps and anti-siphon devices.
8.
BRINE TANK CONNECTION: Install the 3/8" O.D. polyethylene tube from the Refill Elbow
to the Brine Valve in the brine tank.
9.
OVERFLOW LINE CONNECTION: An overflow drain line is recommended where a
brine overflow could damage furnishings or the building structure. Your softener is
equipped with a brine tank safety float which greatly reduces the chance of an accidental
brine overflow. In the event of a malfunction, however, an overflow line connection will direct
the "overflow" to the drain instead of spilling on the floor where it could cause considerable
damage. This fitting is an elbow on the side of the brine tank. Attach a length of 1/2" I.D.
tubing to fitting and run to drain. Do not elevate overflow line higher than 3" below bottom of
overflow fitting. Do not "tie" this tube into the drain line of the control valve. Overflow line must
be a direct, separate line from overflow fitting to drain, sewer, or tub. Allow an air gap as per
the drain line instructions.
CAUTION: Never insert a drain line into a drain, sewer
line, or trap. Always allow an air gap between the drain
line and the wastewater to prevent the possibility of
sewage being back-siphoned into the conditioner.
6

Time of day should only need to be set after extended power outages or when daylight saving time
begins or ends. If an extended power outage occurs, the time of day will flash on and off indicating
that the time should be reset.
STEP 1 -- Press SET CLOCK.
STEP 2 -- Current Time (hour): Set the hour of the day using or buttons. AM/PM
toggles after 12. Press NEXT to go to step 3.
STEP 3 -- Current Time (minutes): Set the minutes using or buttons. If it is desired
to go back up to the previous step press REGEN button once. Pressing NEXT
will exit Set Clock and return to the general operating display (page 9).
NOTE: The manufacturer has preset the unit so that the gallons between regenerations will be
automatically calculated after the hardness is entered.
STEP 1 -- Press NEXT and simultaneously for 3 seconds.
STEP 2 -- Hardness: Set the amount of hardness in grains per gallon (default 20) using
the or buttons. The allowable range is from 1 to 150 in 1 grain increments.
Note: Increase the grains per gallon if soluble iron is present (1 ppm = 3 gpg).
Press NEXT to go to step 3. Press REGEN if you want to exit.
STEP 3 -- Day Override: The manufacturer has factory set this at 14 days as the default.
This is the maximum number of days between regenerations. If this is set to "OFF"
regeneration initiation is based solely on gallons used. If any number is set
(allowable range from 1 to 28), a regeneration initiation will be called for on that
day even if a sufficient number of gallons were not used to call for a regeneration.
Set Day Override using or buttons (14 is recommended):
● set number of days between regeneration (1 to 28); or
● set to "OFF"
Press NEXT to go to step 4. Press REGEN if you need to return to the previous step.
PROGRAMMING PROCEDURES FOR WATER SOFTENERS:
1. Set time of day:
2. Programming:
1
2
3
1
2
3
7

STEP 4 -- Regeneration Hour: The manufacturer has factory set 2:00 a.m. as the default.
This is the hour of day for regeneration and can be reset by using or
buttons. "AM/PM" toggles after 12. The default time is 2:00 a.m. (recommended
for a normal household).
Press NEXT to go to step 5. Press REGEN if you need to return to the previous step.
STEP 5 -- Regeneration Minutes: Set the minutes using or buttons. Press NEXT to
exit Installer Settings. Press REGEN if you need to return to the previous step. To
initiate a manual regeneration immediately, press and hold the REGEN button for
three seconds. The system will begin to regenerate immediately. The control may
be manually stepped through the regeneration cycles by pressing REGEN.
2. Programming cont'd:
4
5
8

1.
General Operation: When the system is operating,
one of the three displays may be shown. Pressing NEXT
will alternate between displays. One of the displays
is always the current time of day. The second display
shows the current treated water flow rate through the
system in Gallons Per Minute. The third display shows
the current volume remaining in Gallons.
Capacity remaining is the gallons that will be treated
before the system goes through a regeneration cycle.
The user can scroll between the displays as desired.
If the system has called for a regeneration that will
occur at the preset time of regeneration, the words
REGEN TODAY will appear on the display.
If a water meter is installed, the word "Softening" flashes on the display when water
is being treated (i.e. water is flowing through the system).
2.
Regeneration Mode: Typically a system is set to regenerate at a time of
no water use. If there is a demand for water when the system is
regenerating, untreated water will be delivered. When the system begins to
regenerate, the display will change to include information about the step of
the regeneration process and the time remaining for that step to be
completed. The system runs through the steps automatically and will reset
itself to provide treated water when the regeneration has been completed.
3.
Manual Regeneration: Sometimes there is a need to
regenerate before the control valve calls for it. This may be
needed if a period of heavy water use is anticipated or when the
system has been operated without salt.
● To initiate a manual regeneration at the preset delayed
regeneration time, press and release REGEN. The words
"REGEN TODAY" will flash on the display to indicate that
the system will regenerate at the preset delayed regeneration time.
● If you pressed the REGEN button in error, pressing the button again will cancel the
command.
● To initiate a manual regeneration immediately, press and hold the REGEN button for three
seconds. The system will begin to regenerate immediately. This command cannot be
cancelled.
4. Power Loss: If the power goes out for less than two hours, the
system will automatically reset itself. If an extended power outage
occurs, the time of day will flash on and off which indicated the time
of day should be reset. The system will remember all other settings.
Error Message: If the word "ERROR" and a number are alternately
flashing on the display record the number and contact the dealer for help.
This indicates that the control valve was not able to function properly.
MANUAL REGENERATION
POWER LOSS OR ERROR
OPERATING DISPLAYS FOR WATER SOFTENERS:
GENERAL OPERATION DISPLAYS
MODE
REGENERATION
REGEN TODAY will flash
if a regeneration is
expected "tonight"
9

● After installation is complete, rotate bypass handles to bypass mode (see Fig. 2 on page 4).
● Turn on water and check for leaks.
● Fully open a cold water faucet -- preferably a laundry sink or bathtub with no aerator.
● Allow water to run until clear to rid pipes of debris which may have occurred during installation.
System regeneration sequence is in the following order. (If it is desired to change this sequence,
please refer to the Dealer Manual or contact the manufacturer.)
1) BRINE TANK REFILL
2) 1.5 HOURS (90 minutes) OF SOFTENING MODE WHILE SALT IS DISSOLVING
3) BACKWASH
4) BRINE DRAW AND SLOW RINSE
5) FAST RINSE
6) END (return to service)
The system is now ready for filling with water and for testing.
1.
With the softener in the bypass mode (Fig. 2 on page 4) and the control valve in normal
operation where the display shows either the time of day, flow rate of treated water or
the gallons remaining: Manually add 5" of water to the brine tank.
NOTE: If too much water is put into the brine tank during softener start up it could result in a
"salty water" complaint after the first regeneration.
During the first regeneration the unit will draw out the initial volume of brine/regenerant and refill
it with the correct preset amount.
2.
Press and hold the REGEN button until the motor starts. Release button. The display reads "FILL"
and the remaining time in this step is counting down. Check to verify that the brine tank is
filling at a rate of 1/2 gallon per minute. Since the brine tank was already filled in Step 1
press REGEN again and the display will read SOFTENING 90 (During a full regeneration this will
be a 1.5 hour period for salt to dissolve). Press REGEN again to put the valve into "BACKWASH."
Unplug the transformer so that the valve will not cycle to the next position. Open the inlet handle of
the bypass valve very slightly allowing water to fill the tank slowly in order to expel air.
CAUTION: If water flows too rapidly there will be loss of media to the drain.
3. When the water is flowing steadily to the drain without the presence of air, slowly open the inlet
valve. Restore power and momentarily press the REGEN button to advance the control to the
"BRINE" position.
4.
The bypass is now in the diagnostic mode (Fig. 3 on page 4). Check to verify that water is being
drawn from brine tank with no leaks or bubbles in the brine line. There should be a slow flow
to the drain.
5.
Momentarily press REGEN again until the display reads "RINSE." There should be a rapid flow to the
drain. Unplug transformer to keep the valve in the "RINSE" position. Allow to run until steady, clear
and without air. While the unit is rinsing load the brine tank with water softener salt. Restore power.
6.
Place bypass valve in the normal operating mode (Fig. 1 on page 4) by opening the outlet bypass
handle. Press REGEN and the unit will return to the service position with time of day being displayed.
START-UP INSTRUCTIONS FOR WATER SOFTENERS:
10

1.
2.
3.
4.
5.
●
●
●
●
●
drive bracket
I. PC board incorrectly aligned on
defective
H. PC board is damaged or
F. replace or clean drive gear(s)
I. reset PC board onto drive bracket
H. replace PC board
G. reset drive bracket
motor wires broken - failed motor
E. motor gears not fully engaged -
momentarily unplug PC board
D. press NEXT and REGEN or
E. check motor wiring
D. control set at "on 0"
E. control set at "NORMAL + on 0"
option in programming
obstruction
B. check piston and spacer stack for
stack assembly
power
C. replace piston(s) and spacer
A. valve has just been serviced
B. foreign material stuck in valve
C. excessive piston resistance
from PC board.
momentarily unplug power source
A. press NEXT and REGEN for 3 secs or
B. reconnect PC board
B. meter cable disconnected
A. put bypass in service position
A. bypass valve in bypass position
A. reset time of day
A. past power outage
E. check with regeneration time
option in programming
D. check with regeneration time
C. reset time of regeneration
C. time of regenerant set incorrectly
debris
D. defective meter
C. remove meter and check for
C. restricted/stalled meter turbine
E. replace PC board
D. replace meter
E. defective PC board
B. reset time of day
B. incorrect time of day displayed
B. repair or use working outlet
B. no power at outlet
A. reconnect transformer
A. transformer unplugged
D. replace PC board
D. defective PC board
C. replace transformer
C. defective transformer
C. defective PC board
B. reset time of day
B. power outage
A. use unswitched outlet
A. outlet is on a switch
C. replace PC board
factory
appear contact
If other codes
unable to recognize
"Error" code 1001-
by code #
"Error" followed
Unit
"Error" code 1003-
unexpected stall
"Error" code 1002-
start of regeneration
position
to reach next cycle
Timed out trying
motor ran too long
regenerates at
wrong time
of day
Timer does
TROUBLESHOOTING GUIDE - SOFTENERS AND FILTERS:
PROBLEM
CAUSE
CORRECTION
on backplate
water is
display when
No softening
damaged - missing or broken
F. center drive gear reflector dirty or
D. piston not in home position
flowing
time of day
not display
G. drive bracket incorrectly aligned
gear
time of day
display correct
Timer does not
11

6.
7.
8.
9.
and off
A. reset time of day
were pressed to reset the valve.
PC board. NEXT and REGEN
flashes on
unplugged from either wall or
A. Power has been out more than
Time of day
two hours. Transformer was
depressed
E. programming error
F. defective PC board
F. replace PC board
E. review programming
but does when
C. clear obstruction
REGEN button is
D. replace meter
D. defective meter
C. obstructed meter turbine
B. reconnect PC board
B. meter disconnected
operating mode
button is
assy.
depressed
D. defective PC board
D. replace PC board
C. replace gear or drive cap assy.
Valve does not
A. bypass valve not in normal
regenerate
automatically
A. see bypass diagrams on page 4
automatically
B. no power at outlet
B. restore power
when REGEN
C. broken drive gear or drive cap
A. connect transformer and PC
regenerate
board power
F. broken piston retainer
G. broken main or regenerant
G. replace main or regenerant
F. replace drive cap assy.
piston
piston
Valve does not
A. transformer unplugged
E. replace gear or drive cap assy.
regeneration
D. defective PC board
D. replace PC board
E. broken drive gear or drive
Valve stalled in
cap assembly
B. no power at outlet
B. repair outlet or use working outlet
C. defective transformer
C. replace transformer
PROBLEM
CAUSE
CORRECTION
A. motor not operating
A. replace motor
12

REF# Description IMC24 IMC30 IM24 IM30 IM45 IM60 IM75 INT34 IMI34 IMI68
AControl Valve IMC24VlvAssy IMC30VlvAssy IM24VlvAssy IM30VlvAssy IM45VlvAssy IM60VlvAssy IM75VlvAssy INT34VlvAssy IMI34VlvAssy IMI68VlvAssy
BMineral Tank MTP1035GR MTP1035GR MTP0844GR MTP0948GR MTP1054GR MTP1248GR MTP1354N MTP1035N MTP0948GR MTP1248GR
CDistributor T04-35 T04-35 TO4-48 TO4-48 T04-54 TO4-48 T04-54 D100S-48 D100S-48 D100S-48
DResin H075 H10 H075 H10 H10/H05 H10 (X2) H10 (X2)/HO5 FH10 FH10 FH10 (X2)
E1/4 x 1/8 gravel N/A N/A N/A N/A N/A N/A N/A QC20 QC20 QC25
FBrine Tank Assy. BT1134ASSY BT1134ASSY BT1833ASSY BT1833ASSY BT1833ASSY BT1833ASSY BT1833ASSY BT1134ASSY BT1833ASSY BT1833ASSY
GOverflow fitting BT-OVERFLO BT-OVERFLO BT-OVERFLO BT-OVERFLO BT-OVERFLO BT-OVERFLO BT-OVERFLO BT-OVERFLO BT-OVERFLO BT-OVERFLO
HSafety Brine Valve SBV33ASSY SBV33ASSY SBV33ASSY SBV33ASSY SBV33ASSY SBV33ASSY SBV33ASSY SBV33ASSY SBV33ASSY SBV33ASSY
ISalt Platform BTSG11 BTSG11 BTSG18 BTSG18 BTSG18 BTSG18 BTSG18 BTSG11 BTSG18 BTSG18
Notes: 1.
2.
3.
For unit specifications see "Specifications" on
pages 18-19.
Unit
COMPONENT LIST:
For complete control valve breakdown see
"Replacement Parts" on pages 14-15.
For list of bypass fittings see "Installation Fitting
Assemblies" on pages 16-17.
A
B
C
D
E
F
G
H
I
13

REPLACEMENT PARTS:
14

Ref.
A CV3002CC Drive Assembly, IM Series
B CV3186 Power Cord with Transformer, Clack Impression Valve
C CV3003 Meter and Cable Assembly
D CV3006 Bypass Valve, IM Series, less I/O fittings
1 CV3175CC-01GR Gray Front Cover, IM Series
2 CV3107-01 Drive Motor, IM Series
3 CV3108CC Circuit Board, IM Series Valve
4 CV3004 Drive Cap Assembly
5 CV3135 O-ring, -228
6 CV3011 Piston Assembly, IM Series
7 CV3174 Brine Valve, IM Series
8 CV3005 Seal Cartridge Assembly, IM Series
9 CV3178 Back plate for IM Series valve
10 CV3180 Base o-ring for IM Series valve, -337
11 CV3105 O-ring, -215
12 CV3177-01 Injector screen, IM Series
13 CV3010-1Z Injector Assembly Plug
14 CV3010-1E Clack Injector, White (for 1.5 cubic feet and less)
CV3010-1F Clack Injector, Dark Blue (for 2 cubic feet and higher)
15 CV3150 Split Ring Retainer
16 CV3151 Nut, 1" Quick Connect
17 CH4615 Elbow Locking Clip
18 CV3163 O-ring, -019
19 CV3165-01 Refill Flow Control Retainer
20 CH4613 Brine Fitting, 3/8" Tube
21 GL463412 3/4" Female NPT x 1/2" Barb Elbow
22 CV3158-01 Drain Elbow 3/4" Male Assy
23 CV3159-01 DLFC Retainer Assembly
24 Drain Line Flow Control Button:
CV3162-010 Flow Control Washer, 1.0 GPM (for IMI34)
CV3162-013 Flow Control Washer, 1.3 GPM (for INT34)
CV3162-017 Flow Control Washer, 1.7 GPM (for IM24 and IM30)
CV3162-022 Flow Control Washer, 2.2 GPM (for IMC24, IMC30, IM45, and IMI68)
CV3162-032 Flow Control Washer, 3.2 GPM (for IM60 and IM75 )
REPLACEMENT PARTS:
PART NO.
DESCRIPTION
15

Item Part Item Part
No. No. No. No.
CV3007 2 CV3007-01 2
1 CV3151 2 1 CV3151 2
2 CV3150 2 2 CV3150 2
3 CV3105 2 3 CV3105 2
4 CV3149 2 4 CV3189 2
Item Part Item Part
No. No. No. No.
CV3007-02
1" brass sweat assembly 2 CV3007-03 3/4" brass sweat assembly 2
1 CV3151 Nut, 1" quick connect 2 1 CV3151 Nut, 1" quick connect 2
2 CV3150 Split ring 2 2 CV3150 Split ring 2
3 CV3105 O-ring 215 2 3 CV3105 O-ring 215 2
4 CV3188 2 4 CV3188-01 2
Fitting
Fitting
Qty
Description
1" BRASS SWEAT
3/4" BRASS SWEAT
Qty
Description
3/4" & 1" PVC SOLVENT ELBOW
INSTALLATION FITTING ASSEMBLIES:
1" PVC male NPT elbow assy.
Qty
Description
3/4" & 1" PVC solvent elbow assy.
Description
Qty
1" PVC MALE NPT ELBOW
Fitting
O-ring 215
Split ring
Nut, 1" quick connect
Fitting
O-ring 215
Split ring
Nut, 1" quick connect
16

Item Part
No. No.
QT-34 KIT 2
1 CV3105 2
2 CV3151 2
3 PEX-L 2
SERVICE WRENCH - CV3193
Although no tools are necessary to assemble
or disassemble the valve, the Service Wrench,
(shown in various positions on the valve) is
available to aid in assembly or disassembly.
Nut, 1" quick connect
PEX tubing insert
INSTALLATION FITTING ASSEMBLIES:
3/4" COPPER Q-TITE CONNECTOR
Description
Qty
Fittings, Items # 1-3
O-ring 215
3
2
1
Loosens Drain Nut In
Polytube Applications
Loosens Injector and
Bypass Caps
Loosens Quick
Connect Nuts
Loosens Drive Cap
17

IMC24 IMC30 IM24 IM30 IM45 IM60 IM75
MEDIA VOLUME (ft3)0.75 1.0 0.75 1.0 1.5 2.0 2.5
CAPACITY (grains)
@Minimum Salt Setting (6#/ft3)13,500 18,000 13,500 18,000 27,000 36,000 45,000
@Factory Salt Setting (9#/ft3)15,750 21,000 15,750 21,000 31,500 42,000 52,500
@Maximum Salt Setting (15#/ft3)24,000 32,000 24,000 32,000 48,000 64,000 80,000
SERVICE FLOW RATES (gpm)
Continuous 810 810 12 15 18
Peak 12 15 12 15 18 20 22
PRESSURE LOSS (psi)2
@ Continuous Flow Rate 5 7 7 8 9 10 12
@ Peak Flow Rate 12 20 18 20 20 22 24
REGENERATION FLOW RATES (gpm)
Backwash 2.2 2.2 1.3 1.7 2.2 3.2 4.2
Brine Draw and Slow Rinse 0.27 0.27 0.27 0.27 0.27 0.38 0.38
Rapid Rinse 2.2 2.2 1.3 1.7 2.2 3.2 4.2
FACTORY REGENERATION SETTINGS
Brine Fill (# of salt) 6 9 6 9 13.5 18 22.5
Softening (minutes) 90 90 90 90 90 90 90
Backwash (minutes) 6 6 6 6 8 10 12
Brine & Rinse (minutes) 45 45 45 45 50 55 60
Rapid Rinse (minutes) 4 4 4 4 6 6 6
Total Water Used (gallons) 34 34 25 29 44 72 98
DIMENSIONS (in.)
Mineral Tank (diameter x height) 10 x 35 10 x 35 8 x 44 9 x 48 10 x 54 12 x 48 13 x 54
Brine Tank (diameter x height) 11 x 11 x 34 11 x 11 x 34 18 x 33 18 x 33 18 x 33 18 x 33 18 x 33
Overall (length x width x height) 11 x 21 x 43 11 x 21 x 43 18 x 26 x 52 18 x 27 x 56 18 x 28 x 62 18 x 30 x 56 18 x 31 x 62
GENERAL REQUIREMENTS: Water Temperature
33°F - 100°F
Water Pressure 25 - 100 psi
Electrical Requirements 110v/60hz
Electrical Current Draw 0.5 amps
Maximum Iron Concentration3≤ 2.0 ppm
Notes: 1.
2.
3.
Pressure loss information is approximate. Actual pressure loss may vary
depending on water quality, temperature, gallons used since last regeneration,
etc.
Water softeners can be expected to remove reasonable amounts of clear water
(ferrous) iron only. For best results an iron filter is recommended. Anytime red
water (ferric) iron or iron bacteria is present an iron filter is required.
UNIT MODEL NUMBER1
Unit models listed include 3/4" Q-Tite plumbing connections. If 1" elbow
connections are required use "-1" as suffix to the unit model number (i.e. IM30-1).
SPECIFICATIONS:
18

INT34 IMI34 IMI68
1.0 1.0 2.0
18,000 18,000 36,000
21,000 21,000 42,000
34,000 34,000 68,000
10 10 15
15 15 20
7 8 10
20 20 22
1.3 1.0 2.2
0.27 0.27 0.38
1.3 1.0 2.2
9 9 18
90 90 90
6 6 10
45 45 55
4 4 6
25 22 56
10 x 35 9 x 48 12 x 48
11 x 11 x 34 18 x 33 18 x 33
11 x 22 x 43 18 x 27 x 56 18 x 30 x 56
GENERAL REQUIREMENTS: Water Temperature
33°F - 100°F
Water Pressure 25 - 100 psi
Electrical Requirements 110v/60hz
Electrical Current Draw 0.5 amps
Maximum Iron Concentration3≤ 4.0 ppm
Notes: 1.
2.
3.
@Minimum Salt Setting (6#/ft3)
SPECIFICATIONS:
UNIT MODEL NUMBER1
MEDIA VOLUME (ft3)
CAPACITY (grains)
REGENERATION FLOW RATES (gpm)
@Factory Salt Setting (9#/ft3)
@Maximum Salt Setting (15#/ft3)
SERVICE FLOW RATES (gpm)
Continuous
Peak
PRESSURE LOSS (psi)2
@ Continuous Flow Rate
@ Peak Flow Rate
Backwash
Brine Draw and Slow Rinse
Rapid Rinse
FACTORY REGENERATION SETTINGS
Brine Fill (# of salt)
Softening (minutes)
Backwash (minutes)
Brine & Rinse (minutes)
Rapid Rinse (minutes)
Total Water Used (gallons)
Water softeners can be expected to remove reasonable amounts of clear water
(ferrous) iron only. For best results an iron filter is recommended. Anytime red
water (ferric) iron or iron bacteria is present an iron filter is required.
DIMENSIONS (in.)
Mineral Tank (diameter x height)
Brine Tank (diameter x height)
Overall (length x width x height)
Unit models listed include 3/4" Q-Tite plumbing connections. If 1" elbow
connections are required use "-1" as suffix to the unit model number
(i.e. IM30-1).
Pressure loss information is approximate. Actual pressure loss may vary
depending on water quality, temperature, gallons used since last regeneration,
etc.
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QUICK REFERENCE GUIDE:
CAPACITY REMAINING
MANUAL REGENERATION
NOTE: For softeners, if
brine tank does not con-
tain salt, fill with salt and
wait at least 1.5 hours before
regeneration. If you need to initiate a
manual regeneration, either immediately, or
the same night at the preprogrammed time for
regeneration (typically 2:00 AM), complete the following steps:
For Immediate Regeneration: Press and hold REGEN until valve
motor starts (typically 3 seconds).
For Regeneration the same night: Press and release REGEN
(notice that flashing "REGEN TODAY" appears.)
TO SET TIME OF DAY
In the event of a pro- 1. Accessed by
longed power outage, pressing SET CLOCK
time of day flashes, 2. Adjust hours with
indicating that this and buttons,
needs to be reset. All AM/PM toggles at 12
other information will 3. Press NEXT
be stored in memory no 4. Adjust minutes with
matter how long the and buttons
power outage. Please 5. Press NEXT to
complete the steps as complete and return to
shown to the right. To normal operation.
access this mode,
press SET CLOCK
GENERAL OPERATION
When the system is operating,
one of three displays will be
shown: Time of day, gallons
per minute, or gallons of
treated water available.
Pressing NEXT will toggle
between the three choices.
ERROR
If the display toggles between "Error"
and an error code (i.e. a number), call
a service technician and report the
error code.
BYPASS VALVE OPERATION
To shut-off water to the system, please position arrow handles as
shown in the bypass operation diagram below. If your valve
doesn't look like the diagram below, contact your service
technician for instructions on how to shut off water.
NORMAL OPERATION BYPASS OPERATION
"TREATED"
WATER EXITS
SUPPLY
WATER ENTERS
SUPPLY
WATER EXITS
SUPPLY
WATER ENTERS
ADJUST HARDNESS, DAYS BETWEEN REGENERATION,
OR TIME OF REGENERATION
For initial set-up or to 1. Accessed by pressing
make adjustments, NEXT and button
please complete simultaneously
the steps as shown to 2. Adjust hardness setting
the right. Access this and buttons
mode by pressing 3. Press NEXT
NEXT and button 4. Adjust days between
simultaneously. regenerations using
and buttons
NOTE: Hardness display 5. Press NEXT
shows "-nA-" if used as 6. Adjust time of regen-
a filter. If other displays eration hour with
do not appear, refer to and buttons, AM/PM
manual. toggles at 12.
7. Press NEXT
8. Adjust time of regenera-
tion minutes with
and buttons.
9. Press NEXT to complete
and return to normal
operation.
12630 US Highway 33 North
Churubusco, IN 46723
Phone: [phone] Fax: [phone]
www.sterlingwatertreatment.com
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