DuPure Impression Plus Series Installation Instructions & Owner's Manual

Impression Plus Series

®

Metered Water Softeners

Installation Instructions & Owner’s Manual

TABLE OF CONTENTS

Preinstallation Instructions for Dealers . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Bypass Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6

Programming Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8

Operating Displays and Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-10

Start-up Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-13

Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-23

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Quick Reference Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Your Impression Plus Series water conditioners are precision built, high quality products. These units will deliver
conditioned water for many years to come, when installed and operated properly. Please study this manual carefully
and understand the cautions and notes before installing. This manual should be kept for future reference. If you have
any questions regarding your water conditioner, contact DuPure at the following:

DuPure
11321 Windfern Road • Houston, TX 77064
Phone: [phone] • Toll-free: 1-877-534-5837

YOUR WATER TEST

Hardness gpg
Iron ppm
pH number
*Nitrates ppm
Manganese ppm
Sulphur yes/no
Total Dissolved Solids

*Over 10 ppm may be harmful for human consumption. Water
conditioners do not remove nitrates or coliform bacteria, this
requires specialized equipment.

PREINSTALLATION INSTRUCTIONS FOR DEALERS:

BYPASS VALVE:

3

The manufacturer has preset the water treatment unit’s sequence of cycles, cycle times, salt dose,
exchange capacity and salt dose refill time.

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:

• Program Installer Settings: Hardness, Day Override (preset to 12 days), and Time of
Regeneration (preset to 2 a.m., with brine tank refill to occur four hours prior; see Operating
Displays and Instructions for more details)

• Read Normal Operating Displays

• Set Time of Day

• Read Power Loss & Error Display

For the homeowner, please read operating displays and instructions.

WATER SOFTENERS:

During operation, the normal user displays are time of day or gallons remaining before regeneration
will occur.

Days remaining is an optional display but is not normally used. 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.

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.

4

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. 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).

NORMAL OPERATION POSITION

Figure 1

DIAGNOSTIC POSITION

Figure 3

BYPASS POSITION

Figure 2

SHUT OFF POSITION

Figure 4

5

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 the 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 and outlet, the brine line connection at the control valve, 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, #CV3193-01. 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 dry locations only

• electrical – 115/120V, 60Hz uninterrupted outlet

• 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 33° F.

WELL WATER INSTALLATION MUNICIPAL INSTALLATION

INSTALLATION:

6

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, page 22-23. 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 tubing nut and use the 3/4" NPT fitting for 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 overhead <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.

7

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

back up to the previous step press

REGEN button once. Pressing NEXT will exit SET CLOCK

and return to the general operating display (page 10).

1. Set time of day:

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 (1ppm = 4 gpg). This

display will show “–nA– (not available)” if “FILTER” is selected or if “AUTO” is
not factory set.

Press

NEXT to go to step 3. Press REGEN if you want to exit.

STEP 3 – DAY OVERRIDE: The manufacturer has factory set 12 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 (12 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.

2. Programming:

1 2 3

1 2 3

PROGRAMMING PROCEDURES:

8

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 programming. Press

REGEN if you need to return to the previous step. To initiate

an immediate manual regeneration, 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

GENERAL OPERATION DISPLAYS

REGENERATION

MODE

OPERATING DISPLAYS AND INSTRUCTIONS:

1. GENERAL OPERATION: When the system is operating,

one of three displays may be shown. Pressing NEXT will
alternate between the 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 is one of the following: days
remaining or volume remaining. Days remaining is the
number of days left before the system goes through a
regeneration cycle. 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” or “Filtering” 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.