EcoWater Systems HERO-375, ERO-375 User Manual
Undersink
REVERSE OSMOSIS
DRINKING WATER SYSTEM
ERO-375
HERO-375
Safety Guides
Installation
Operation
Maintenance
Repair Parts
EcoWater Systems LLC
P.O. Box 64420
St. Paul, MN 55164
TEL (651) 739-5330 7300493 (Rev. D 9/17/08)
System tested and certified by NSF International
against NSF/ANSI Standard 58.
See performance data sheet for details.
2
TABLE OF CONTENTS
WARRANTY INFORMATION
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Safety Guides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
What the Drinking Water System Will Do. . . . . . . . . . . 5
Components of the System. . . . . . . . . . . . . . . . . . . . . . . . 5
Checks to Make Before Installing . . . . . . . . . . . . . . . . . . 5
Installing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
Feed Water Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Reject Water Drain Fitting . . . . . . . . . . . . . . . . . . . . . . . 6
Installing Faucet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installing RO Assembly & Storage Tank . . . . . . . . . . . 8
Tubing Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Connect Water Supply, Storage Tank
& Drain Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Sanitizing / Pressure Testing / Purging . . . . . . . . . . . 11
Installing Hydrolink™ RO Module . . . . . . . . . . . . . . 12
Installing (or Replacing) Batteries . . . . . . . . . . . . . . . 12
Connecting Hydrolink™ RO Module to Remote . . 13
How the Hydrolink™ RO Module Works. . . . . . . . . . 14
Status Screen on the Remote . . . . . . . . . . . . . . . . . . . . . 14
Status LED on the Hydrolink™ RO Module. . . . . . . . 15
Checking RF Signal Strength . . . . . . . . . . . . . . . . . . . . . 15
Changing the Remote Display . . . . . . . . . . . . . . . . . 16-17
How the RO System Works . . . . . . . . . . . . . . . . . . . . . . 18
Replacing the Filters & RO Membrane. . . . . . . . . . . . . 19
Care of Your Reverse Osmosis System . . . . . . . . . . 19-22
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
System Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Installation of Optional Fittings. . . . . . . . . . . . . . . . . . . 24
Remote Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Repair Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-27
LIMITED WARRANTY
1, 3, 5 and 10 YEAR
EcoWater Systems LLC, guarantees to the original owner that:for a period of ten (10) years from from the date of purchase, the RO holding tank will be free from defects in material and workmanship. All other parts of the drinking water
system will be guaranteed for a period of five (5) years from defects in material and workmanship. The electronic faucet
will be guaranteed for three (3) years from defects in material and workmanship. The reverse osmosis membrane will
be guaranteed for one (1) year from defects in material and workmanship. The prefilters and postfilter, which are
expendable, are not covered under this warranty. This warranty does not include normal shipping, installation or service charges.
Any defective part, as described above, which fails within the ten, five, three or one year period from date of purchase
will be repaired or replaced, F.O.B. our plant, St. Paul, MN.
The sole obligation of EcoWater Systems LLC, under these guarantees, is to replace or repair the component or part
which proves to be defective, within the specified time period, and EcoWater is not liable for consequential or incidental damages due to misuse, alteration, neglect, freezing or a force of nature. All implied warranties, including any
implied warranty of merchantability or of fitness for a particular purpose, are disclaimed to the extent they extend
beyond the above periods. No dealer, agent, representative, or other person is authorized to extend or expand these
guarantees.
Some states do not allow limitations on how long an implied warranty lasts or exclusions or limitations of incidental or
consequential damage, so the limitations and exclusions in this warranty may not apply to you. This warranty gives you
specific legal rights, and you may have other rights which vary from state to state.
3
SAFETY GUIDES
Read all steps, guides and rules carefully before installing
and using the Drinking Water System. Follow all steps exactly to correctly install.
BE SURE TO FOLLOW APPLICABLE STATE AND LOCAL
PLUMBING AND SANITATION CODES when installing the
Drinking Water System. Massachusetts plumbing code 248
CMR shall be adhered to. Please consult your licensed
plumber. Using a qualified installer is recommended.
The Drinking Water System works on water pressures of 40
psi minimum, to 100 psi maximum (see the table on Page 4). If
house water pressure is over the maximum, install a pressure
reducing valve in the water supply line to the Drinking Water
System.
This system is acceptable for treatment of influent concentrations of no more than 27 mg/L nitrate and 3 mg/L nitrite
measured as N and is certified for nitrate/nitrite reduction
only for water supplies with a pressure of 280 kPa (40 psig) or
greater. This system is supplied with a nitrate/nitrite test kit.
Product water should be monitored periodically according to
the instructions provided with the test kit.
DO NOT install the Drinking Water System outside, or in
extreme hot or cold temperatures. Temperature of the water
supply to the Drinking Water System must be between 40°F
(minimum) and 100°F (maximum), see the table on Page 4. DO
NOT INSTALL ON HOT WATER.
Read the other limits (pH, water hardness, etc.), Page 4, and
be sure the water supply conforms.
Do not use with water that is microbiologically unsafe or of
unknown quality without adequate disinfection before or
after the system. Systems certified for cyst reduction may be
used on disinfected water that may contain filterable cysts.
This system shall only be used for arsenic reduction on
chlorinated water supplies containing detectable residual free
chlorine at the system inlet. Water systems using an inline
chlorinator should provide a one minute chlorine contact time
before the RO system. Conforms to NSF/ANSI 58 for pentavalent arsenic reduction. See performance data sheet and
Arsenic Facts section for an explanation of reduction performance.
NOTE: This equipment has been tested and found to com-
ply with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used
in accordance with the instructions may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to
try to correct the interference by one or more of the following
measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and
receiver.
Connect the equipment into an outlet on a circuit differ-
ent from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician
for help.
Changes or modifications not expressly approved by
EcoWater Systems could void the user’s authority to operate
the equipment.
This device complies with Industry Canada Standard RSS-
210. Operation is subject to the following two conditions: (1)
this device may not cause interference, and (2) this device
must accept any interference, including interference that may
cause undesired operation of the device.
Ce dispositif est conforme avec la norme CNR-210
d’Industrie Canada. Le fonctionnement du dispositif est
sujet aux deux conditions suivantes: (1) le dispositif ne doit
pas causer de brouillage, et (2) le dispositif doit accepter tous
brouillages, incluant tous brouillages qui peut nuire au bon
fonctionnement du dispositif.
European Directive 2002/96/EC requires all electrical and electronic equipment to be disposed of
according to Waste Electrical and Electronic
Equipment (WEEE) requirements. This directive
or similar laws are in place nationally and can
vary from region to region. Please refer to your
state and local laws for proper disposal of the
equipment.
4
SPECIFICATIONS
Feed water pressure limits - pounds per square inch (psi). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 - 100
Feed water temperature limits - minimum / maximum degrees F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 - 100
Maximum total dissolved solids (TDS) - parts per million (ppm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2000
Maximum water hardness @ 6.9 pH - grains per gallon (gpg) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Maximum iron, manganese, hydrogen sulfide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
Chlorine in water supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . allowable
Feed water pH limits (pH) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 11
Product (quality) water, 24 hours - gallons (closed system). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.4
Percent rejection of TDS, minimum (new membrane) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Automatic shutoff control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . yes
Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.14
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.98
Chlorine reduction (max. of 2.0 ppm) by the RO Prefilter. REGULAR MAINTENANCE REQUIRED.
Chlorine will destroy the RO membrane, See Page 5.
Feed water supply at 50 psi, 77°F, and 750 TDS - Quality water production and percent rejection all
vary with changes in pressure, temperature and total dissolved solids.
Efficiency rating means the percentage of the influent water to the system that is available to the user as
revers osmosis treated water under operating conditions that approximate typical daily use.
Recovery rating means the percentage of the influent water to the membrane portion of the system that
is available to the user as reverse osmosis treated water when the system is operated without a storage
tank or when the storage tank is bypassed.
PRETREATMENT OF THE WATER SUPPLY NEEDED TO PREVENT SCALING
TO USE THE CHART...
...Locate the intersecting point of feed water hardness
and pH.
If this point falls within the shaded area, pretreatment*
is needed.
*Softening of the water is the suggested pretreatment.
This system conforms to NSF/ANSI 58 for the specific performance claims as verified and substantiated
by test data.
16”
11”
17”
12-1/2”
3-1/2”
5
WHAT THE DRINKING WATER SYSTEM WILL DO
COMPONENTS OF THE SYSTEM
The drinking water system is a REVERSE OSMOSIS (RO)
water treating unit. Reverse osmosis is a way of reducing
dissolved solids and organic matter from water by passing it through a special membrane. The membrane separates minerals and impurities from the water, and they are
flushed to the drain. Good tasting, high quality product
water goes directly to the drinking water faucet, or to the
storage area. The system makes a good supply of drinking water each day (see specifications). How much it will
make depends on the feed water supply pressure, temperature, and quality.
Pre and postfilters are replaceable cartridges. The carbon
prefilter reduces some chlorine (see specifications) while
also filtering sediments. The postfilter reduces any other
undesirable tastes and odors before you use the water.
The RO system also includes a standard faucet assembly
to vend the drinking water, and a storage tank.
NOTE: A performance data sheet is included listing what
the system will reduce from the water supply. See performance data sheet for individual contaminants and
reduction performance.
The drinking water system fits under the kitchen or bathroom sink. However, you can install it where most convenient. You do need a COLD water supply pipe and
drain point within a few feet (6' tubing lengths included).
You can buy longer lengths of tubing if needed to reach
more distant points. Be sure tubing is acceptable for use
on potable water supplies.
The RO system is shipped in one carton, consisting of:
(1) Storage Tank,
(2) Faucet,
(3) RO Assembly, with color coded tubing lengths
attached,
(4) Parts bag containing storage tank shutoff valve, drain
flow restrictor, mounting washers and screws.
(5) Separate 30" length of 3/8" tubing.
(6) Hydrolink™ RO Module, with batteries and cable, in
its own box (Model HERO-375 only).
INSTALLER PROVIDES: (1) fittings to tap the cold water
pipe for a feed water source to the RO . . . must adapt to
1/4" tubing; and (2) a drain point for RO discharge water .
. . must adapt to 3/8" OD tubing. Both items must comply
with state and /or local codes. Optional fittings are available from EcoWater for use in areas where codes permit.
THINGS TO CHECK BEFORE YOU START TO
INSTALL:
FEED WATER - The water supply to the Drinking
Water System must have the qualities listed in the specifications. If not, it will not make product water as it should
and life of the RO membrane is shortened. City water
most often will have these qualities. Well water may need
conditioning. Have the water tested by a water analysis
laboratory, and get their recommendations for treatment.
Observe plumbing codes when providing a water supply
to the RO. A self-piercing saddle valve is available for tapping into a cold water pipe (check local plumbing codes).
Refer to Pages 24 and 27.
NOTE: Codes in the state of Massachusetts require installation by a licensed plumber, and do not permit the use of
the drain clamp. For installation, use plumbing code 248CMR of the Commonwealth of Massachusetts.
CAUTIONS:
Feed water must have chlorine reduced (prefilters reduce
up to amount shown in specifications, Page 4). Chlorine
will destroy the RO membrane cartridge. Be sure to service the prefilters, Page 19.
DRAIN POINT - A suitable drain point (check your
local plumbing codes) is needed for reject water from the
RO membrane cartridge. Running the RO drain tubing
directly to a floor drain, laundry tub, sump, standpipe,
etc., is preferred. If that is not possible or practical, using
the sink p-trap drain pipe is suggested. A drain clamp
(drilling required), or a special drain adapter are available
from EcoWater to use where codes permit. Refer to Pages
24 and 27. These options install on the sink drain pipe
tailpiece, above the p-trap.
RO FAUCET - The RO product water faucet installs on
the sink, or on the countertop next to the sink. Often, it's
installed in an existing sink spray attachment hole. Space
is required underneath for tubing to and from the faucet,
and for securing it in place. Refer to Pages 7 and 10.
MOUNTING SURFACE - The RO assembly mounts
on a wall surface under the sink, or you can lay it on the
bottom of the cabinet. Special washers and screws are
included for wall mounting.When the storage tank is full
of water, it weighs about 30 pounds. Be sure to set on a
surface that will support this weight.
6
INSTALLATION - FEED WATER SUPPLY
REJECT WATER DRAIN FITTING
Check and comply with local plumbing codes as you
plan, then install a cold feed (supply) water fitting. The
fitting must provide a leak tight connection to the RO
1/4" OD tubing, see Figure 6, Page 10. A typical installation, using standard plumbing fittings is shown in
Figure 1. A saddle valve (part no. 7011272) is available
to use where codes permit. Installation instructions are
on Page 24.
NOTE: Codes in the state of Massachusetts require
installation by a licensed plumber, and do not permit
the use of the drain clamp. For installation, use plumbing code 248-CMR of the Commonwealth of
Massachusetts.
PIPE FITTINGS (compression shown)
IMPORTANT: Before starting, close the hot and cold
water shutoff valves (See Figure 1). Use a pan to catch
water when disassembling the pipe.
Complying with plumbing codes, install a fitting on the
kitchen cold water pipe to adapt 1/4" OD tubing. A typical connection is shown in Figure 1. You can use solder
or threaded fittings. If threaded fittings are used, be
sure to use pipe joint compound or Teflon tape on outside threads.
Do not connect the tubing to the fitting until Step 2, top
of Page 10.
Running the RO drain tubing directly to a floor drain,
laundry tub, sump, standpipe, etc., is preferred. If that
is not possible or practical, check and comply with
local plumbing codes as you plan, then install a drain
fitting for RO reject water. This fitting is usually
installed at the sink p-trap (always above). It must provide a leak-tight connection to 3/8" OD tubing from the
RO product water faucet airgap, see Figure 6, Page 10.
Typical drain fitting installations are listed below. A
drain adapter (part no. 7192230) is available to use
where codes permit. Installation instructions are on
Page 24. Other options are shown on Page 27.
“Y” BRANCH TAIL PIECE, OR OTHER APPROVED
P-TRAP DRAIN
Reject water from the RO is routed to the RO faucet airgap (1/4" tubing), then to the drain point with 3/8" OD
tubing. COMPLYING WITH PLUMBING CODES,
install a fitting to accept the 3/8" tubing. Figure 2 shows
typical p-trap and "Y" branch tail piece type drains.
Do not connect drain tubing until Step 1, top of Page 10.
FIGURE 1
FIGURE 2
7
INSTALL THE FAUCET
Select one of the following places to install the faucet.
Be sure there's room underneath so you can make the
needed connections.
In an existing sink spray attachment hole.
Drill a hole in the sink top.
Drill a hole in the countertop, next to the sink.
NOTE: Looking at Figure 3, be sure the faucet base will
fit flat against the surface at the selected location so the
o-ring will seal.
1. Do not connect drain tubing until Step 1, top of
Page 10.
2. For Model ERO-375, slide the chrome washer onto
the faucet stud, Figure 3.
3. For Model HERO-375, snap the o-ring in the
groove on the bottom of the ring and slide the monitor
ring onto the faucet stud. The monitor ring LED wire
must be routed through the sink or countertop hole
and through the spacer, if used, Figure 3.
NOTE: If you will route the RO drain tubing directly to
the drain point, disregard Steps 4 and 6 and do Step 1
on top of Page 10.
4. Take the 30" length of 3/8" black tubing and push
one end onto the 3/8" faucet barb fitting, Figure 4.
5. Move the RO system into position, under the sink.
(Referring to Page 8, hang the system on cabinet wall,
or lay on the floor surface, as desired.)
6. Route the 1/4" red tubing from the bottom, up
through the faucet mounting hole. Push the end of the
tubing onto the 1/4" barb fitting.
7. Work tubing and the faucet stud down, into the
mounting hole.
8. On the underside of the sink or countertop, install
the spacer (Model HERO-375 only), plastic bushing, flat
washer, and hex nut. Slide the large steel washer in
place, between the bushing (or spacer) and the bottom
of the sink or countertop. Then, tighten the hex nut
securely. Make sure that the LED wire is in a position
so that it will not be cut, pinched or kinked before
tightening the faucet assembly.
9. Thread the tubing connector onto the bottom of the
faucet stud.
10. Push the end of the 3/8" blue tubing from the RO,
into the tubing connector installed in Step 9.
NOTE: See tubing connection procedures on Page 9.
For ease of service and maintenance, keep tubing
lengths long enough so removal of the RO system from
under the sink is possible.
FIGURE 3 - FAUCET INSTALLATION FIGURE 4 - TUBING CONNECTIONS
wire will be connected to Hydrolink™ RO
Module in manifold
electronics ring
o-ring
washer
Model ERO-375 only
Model HERO-375 only
spout
lever
faucet
1-1/4” dia. hole
spacer
bushing
washer
hex nut
steel washer
(large)
3/8” blue tubing
from RO
3/8” black
tubing,
30” long
1/4” red
tubing
from RO
1/4” barb
fitting
3/8” barb
fitting
tubing connector
1/4” to 3/8”
8
INSTALL RO ASSEMBLY AND STORAGE TANK
1. Hold the RO assembly up to the wall surface
where you will install it. Mark locations for the hanger
washers and screws.
2. Fasten the hanger washers to the wall surface.
Wood screws are included for fastening to a wood surface. Provide other screws for other surfaces as needed.
3. Hang the RO assembly on the hanger washers.
4. Move the storage tank into place, setting on the
floor surface. Use the stand, included with the tank,
and position the tank upright, or on its side.
5. Apply teflon tape on the tank nipple threads and
install the shutoff valve.
9”
NOTE: Be sure to allow a minimum space of 1-1/2" under the
system for removing the cartridges in order to change them.
connector (shut
off) valve
storage
tank
hanger
washer (2)
screw (2)
NOTE: Be sure to allow a minimum
space of 4" above the system for
removing the top cover to change
batteries (on HERO-375).
FIGURE 5
9
TUBING CONNECTIONS
HOW TO CUT AND CONNECT THE TUBES
Your Reverse Osmosis Water System includes push-in
fittings for quick tubing connection. Review the following instructions before connecting the tubes in the next
step.
Cut tubes to length
1. Use a sharp cutter or knife to cut the end of tubing.
Always cut the tubing square.
2. Inspect the end (about 1") of the tubing to be sure
there are no nicks, scratches or other rough spots. If
needed, cut the tubing again.
NOTE: Tubing lengths should allow for the removal of
the assembly from the hanger washers for servicing. If
tubing lengths are shortened for neater appearance, it
may be necessary to keep the assembly on the hanger
washers for service.
Connect tubes
NOTE: Remove protective foam plugs before connect-
ing tubes. Discard foam plugs.
1. Push tubing through collet, until it engages the o-
ring. Continue pushing until the tube bottoms out
against the back of the fitting. A common mistake is to
stop pushing when the tube engages the o-ring. This
will lead to future leaks. When a 1/4” tube is fully
engaged, 11/16” of the tube has entered the fitting.
When a 3/8” tube is fully engaged, 3/4” of the tube has
entered the fitting.
2. If using tubing other than tubing supplied with the
system, be sure it is of high quality, exact size and
roundness with a smooth surface.
To Disconnect Tubes
1. Push the collet inward with a finger tip.
2. Continue holding collet inward while pulling the
tubing out.
Collet and O-ringDisconnect Tubing
Cut tubing square with end of tubing round,
smooth, with no cuts, nicks or flat spots.
Tube Correctly Cut
tube
push-in
fitting
Remove and Discard Foam Plugs
foam plug
push-in
fitting
Tube Partially Engaged With Fitting
collet
o-ring
Tube Fully Engaged With Fitting
collet
o-ring
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