Excalibur EWR 4075 Instruction Manual

Excalibur Water Systems

142 Commerce Park Drive, Unit M & N
Barrie, Ontario L4N 8W8 CANADA

www.excaliburwater.com

REVERSE OSMOSIS

WATER FILTRATION SYSTEM

MODEL EWR 4075

INSTRUCTION MANUAL

2013.05.7446

6’ of 1/4” White Tube

U

Teflon® Tape

Tank Valve

Angle Valve
Adapter

Sediment

Cartridge

S

Carbon

Cartridge

C

Reverse Osmosis

Membrane

RO

Carbon

Cartridge

C

Faucet
Adapter

V

Drain Fitting

W

4-Stage RO System

REQUIRED TOOLS & MATERIALS

• Tape Measure • Utility Knife

• Phillips Head Screwdriver • 1/8” & 1/2” Drill Bits

• Adjustable Wrench • Center Punch

• File • Safety Glasses

• Pencil • Masking Tape

• Pan or Bucket • Drill

PACKAGE CONTENTS

1

PLAN FOR INSTALLATION

1/4” White Tube

to Drain

Restrictor

Angle
Valve

Adapter

Tank Valve

Sediment

Cartridge

S

Carbon

Cartridge

C

Reverse Osmosis

Membrane

RO

Carbon

Cartridge

C

1/4” White Tube

to Reverse Osmosis

Prior to installation, we recommend you read the entire manual. This will not only familiarize you with the
system, but it will help you determine the best location for installation whether under a sink or in a remote
location. Helpful diagrams follow.

PREPARE SITE FOR INSTALLATION

1 Prior to starting, close the cold water shut-off valve.
2

Temporarily place tank and lter assembly into cabinet to ensure adequate space and proper positioning.

3 Remove tank and lter from cabinet and set aside.

INSTALLATION OVERVIEW

There are eight easy steps to installing your RO unit. They are as follows:

Step 1 - Install Angle Valve Adapter
Step 2 - Install RO Drain Connector
Step 3 - Install RO Filter Assembly
Step 4 - Install Water Storage Tank
Step 5 - Install Tank Valve
Step 6 - Install RO Faucet
Step 7 - Connect Tubing
Step 8 - Install RO System and Drain in Remote Location
Step 9 - Sanitize, Pressure Test, Purge System

NOTE: You must check and comply with all local plumbing codes.

STANDARD INSTALLATION

2

Angle
Valve

Adapter

REMOTE INSTALLATION

3/8” White Tube

to Faucet

2”

Minimum

1/4” White

Tube to

Drain Point

3/8” White Tube

to Tank

(requires nearby water source and drain)

STEP ONE – INSTALL ANGLE VALVE ADAPTER

1 Identify the cold water line in the sink cabinet.

Turn off the cold water supply to the sink.

2 Turn on the kitchen faucet to release pressure and

allow water to completely drain from the line.

3 Disconnect the cold water line from the lower shut off valve.

Note: You may need to shorten the supply line pipe using a hacksaw or
pipe cutter to accommodate the Adapter if pipe is rigid.

4 Holding the Angle Valve Adapter in an upright position (see diagram

in Package Contents on page 1), screw onto the threaded shut off valve.

5 Screw the cold water supply line to the male threads of the Adapter

using the nut that was previously connecting the cold water line to
the shut off valve.

3

STEP TWO – INSTALL RO DRAIN CONNECTOR

Angle
Valve

Adapter

!

WARNING

Be sure that all electrical appliances and outlets are turned off
at the circuit breaker before working in the cabinet area.

1 Identify drain outlet location.
2 From back of foam seal, remove protective cover.
3 Knock center hole out, align holes, and attach to front plate of drain connector.
4 Allowing room for drilling, position the drain connector on sink drain pipe above drain trap.
5 Securely tighten nuts and screws.
6 Using drain connector port as drill guide, drill 7/32” hole through wall of drain pipe. Be sure not to

penetrate opposite side of pipe, and be careful not to damage side of drain port tting.

!

CAUTION

Please wear safety glasses to
protect eyes when drilling.

STEP THREE – INSTALL RO FILTER ASSEMBLY

1 Select easily accessible area under sink to

mount system manifold. Note: Allow 4-6”
clearance below the lter to the oor to allow
ample space for lter changes.

2 Mark holes for mounting screws using built-in

bracket on back of manifold.

3 Drill two pilot holes for mounting brackets

using 1/8” drill bit.*

4 Insert mounting screws into the wall leaving

approximately 3/8” of each screw exposed.

5 Hang manifold on mounting screws.

*

!

CAUTION

Use caution not to drill into anything beyond the cabinet wall.

4

H Teflon® Tape

Tank Valve

STEP FOUR – INSTALL WATER STORAGE TANK

Reverse Osmosis

Membrane

1/4” White Tube

to Reverse Osmosis

Angle
Valve

Adapter

3/8” White Tube to Faucet

3/8” White Tube

to Tank

Sediment

Cartridge

S

Carbon

Cartridge

C

RO

Carbon

Cartridge

C

1/4” White Tube

to Drain

Restrictor

Reverse Osmosis

Membrane

Faucet Adapter

1 On the nipple on top of the tank, apply 2-3 wraps of Teon® tape.
2 Hand-tighten the tank valve onto the tank

nipple 3-4 times. Note: do not cross thread or over-tighten.

3 Using mount stand, place tank next to system assembly.

STEP FIVE – INSTALL RO FAUCET

You will need a sink top hole 1/2” in diameter.

Note: Drilling holes into solid surfaces or surfaces made of stone
should only be performed by a qualified and certified installer.

1 Ensure faucet body will mount

at against surface.

2 Place faucet base assembly on

countertop and mark.
3 Drill ½” hole through countertop.
4 Fasten faucet to countertop.
5 Apply 2-3 wraps of Teon® Tape

to faucet.
6 Thread on faucet adaptor.

5

STEP SIX – CONNECT TUBING

Install tubing for water supply line from
angle valve adapter to manifold inlet.

Note: Do not bend or crimp tubing during this step.

1 With utility knife, cut the 1/4" white tubing squarely

to desired length.

With water, wet one end of tubing and push into

2

the angle valve adapter approximately 5/8” until it stops.
3 Wet other end of tubing and push into the manifold

“INLET” approximately 5/8” until it stops.

Note: It is not necessary to remove tubing for routine maintenance and filter exchanges,

however, it may easily be disconnected if necessary. To disconnect, turn off water supply to

system and press in white collar around fitting while pulling tubing out with other hand.

Install tubing for water supply line from manifold outlet to faucet.

1 Identify length of 3/8”white tubing necessary to

connect to manifold outlet labeled “FAUCET” to

faucet adapter.
2 Cut tubing squarely with utility knife. Do not

discard remaining tubing.
3 With water, wet one end of tubing and push into

manifold outlet labeled “FAUCET” approximately

5/8” until it stops.
4 With water, wet other end of tubing, push into faucet adapter

approximately 5/8” until it stops.

Connect tubing from manifold to tank.

1 Use remaining white tubing set aside earlier and identify length

needed to connect tank outlet labeled “TANK” on manifold to tank.
2 Cut white tubing square with a utility knife.

3 Insert tubing into port of tank valve (previously connected to tank)

and tighten tank valve nut.
4 Insert other end of white tubing into outlet of manifold labeled

“TANK” approximately 5/8” until it stops.

Note: For servicing, tubing lengths should allow for

removal of assembly from mount screws.

6

STEP SIX – CONNECT TUBING (Continued)

Drain tting to Restrictor.

1 Locate membrane drain port on lower membrane side.
2 By pushing down on the white collar while pulling

plug with other hand, remove black plug from

membrane lter drain port.
3 Identify length necessary to connect to drain port.
4 With utility knife, cut the 1/4" white tubing squarely to

desired length.
5 Insert restrictor into end of white tubing.
6 Insert white tubing into tting on bottom of membrane lter approximately 5/8” until it stops.
7 Gently tug on white tubing to ensure it is rmly seated in tting.

1/4” White Tube

to Drain

Angle
Valve

Adapter

Sediment

S

1/4” White Tube

to Reverse Osmosis

Cartridge

Carbon

Cartridge

C

Restrictor

Membrane

Reverse Osmosis

RO

Carbon

Cartridge

C

Connect flow restrictor to drain adapter connection.

1 Attach 1/4" tubing to collet quick connect on flow restrictor.
2 Cut enough 1/4” white tubing to route in as straight as possible without any twists, kinks,

loops or valleys.
3 Cut end of 1/4” white tubing with utility knife to desired length.
4 Insert 1/4” white tubing to drain connection approximately 5/8" until it stops.
5 Gently tug on white tubing to ensure it is rmly seated in tting.

Tank Valve

7

NOTE: THIS STEP FOR REMOTE LOCATIONS ONLY

3/8”

3/8”

2”

Minimum

Restrictor

1/4” White

Tube to

Drain Point

STEP SEVEN – INSTALL RO SYSTEM & DRAIN

1 Determine if tubing is long enough to reach drain. If yes, insert restrictor in end of tubing and insert this

end into drain port on membrane. If no, replace with tubing of adequate length and insert restrictor into

end of tubing. Insert this end of tubing into drain port on membrane.
2 Cut enough 1/4” white tubing to drain port.

8

STEP EIGHT – SANITIZE, TEST & PURGE

Sanitize

Note: Sanitization is recommended immediately after RO Filter System installation and any
inner-part servicing. The person sanitizing should have clean hands during this process.

1 Shut off water supply to RO system.
2 Open faucet. If tank is not empty, allow to drain until empty.
3 With included eyedropper and household bleach (5.25%),

disconnect white tubing from tank valve. Note: Bleach needs

to be handled according to manufacturer’s instructions.

4 Add 3ml bleach into open end of tank white tubing.
5 Reconnect tank and white tubing to tank valve.
6 Sanitization will be completed during the following pressure

test and purge.

Important: Bleach must be completely removed from system
before drinking water. See Purge instructions below.

Pressure Test

Important: Complete sanitization prior to pressure test.

1 Open cold water supply valve to RO Filter System.
2 To purge air from the plumbing system, open kitchen faucet. Close faucet when water runs smooth.
3 Conrm RO faucet is closed.
4 Within approximately 2 hours, pressure will start to build in the RO Filter System. Carefully inspect all

connections and ttings while this pressure buildup occurs.

5

Check for leaks. If leaks are found, x by ensuring all tubing is cut squarely and fully inserted. Also conrm
there are no scratches, dents or notches at tubing end. If there are, squarely cut 1” off and re-insert.

Purge

1 Open RO faucet and let water ow through system for 24 hours.

Note: Flow rate will be slow during this time.

2 Close RO faucet after purge is complete.

Note: Your RO Filter System is ready for use when purge is complete, however, you will not have filtered
water immediately. It takes 1 – 3 hours to completely fill the tank. The flow rate will be less than your
kitchen faucet. Water will run to the drain while the RO Filter System is filtering water – even when not in
use. This is normal. Water going to drain will stop automatically when tank is at capacity.

9

Filter Replacement

1 Close angle valve located on cold water supply hose to shut off water

supply to the RO Filter System.
2 Turn cartridge from right to left until unit releases. Gently pull down to

remove from head. Discard used cartridge.

Note: Place a bucket or pan under system to catch any water drips.

3 Hold new cartridge with label slightly facing left. The two nozzles on top

of cartridge should be toward the back of the Filter System, and the two

extended anges should be out to each side.

Note: Part No. SMFPP2005TL should be in stage 1, Part No. SMF CBC2005TL
should be in stages 2 and 4, and Part No. ROTWRM75 should be in stage 3.

4 Lift cartridge straight up into the manifold until the two nozzles seat into

the manifold ports, and the two extended anges are ush with the

manifold.
5 Turn cartridge from left to right until it stops.
6 Turn on cold water shut-off valve and RO faucet. Check for leaks.
7 Pressure test and Purge per Step Eight.

10

4STAGE RO SYSTEM  MODEL EWR 4075

U.S. Metric

Membrane Production1 75 ± 7 gpd (283 ± 26 lpd)

Membrane TDS Reduction1 96.6% minimum 96.6% minimum

System Production2 45 gpd 170 lpd

TDS Reduction2 97.5%+ typical 97.5%+ typical

Maximum TDS 1000 ppm 1000 ppm

Maximum water hardness @ 6.9pH 10 gpg 2.64 gpL

Maximum Chlorine in water 3.0 ppm 3.0 ppm

Supply water pH limits 4-10 4-10

Drain (reject water) Flow 3-5 x product ow 3-5 x product ow

Empty Storage Tank Precharge 5-7 psi air 35-48 kPa air

Storage Tank Capacity2 4.0 gallons 15 liters

Supply water pressure limits 40-100 psi 280-689 kPa

Supply water temperature limit 40-100⁰ F 5-40⁰ C

Efficiency3 19% 19%

Recovery 4 30.6% 30.6%

Specications – Qualied System Performance

Because the performance of a Reverse Osmosis Membrane is highly dependent upon pressure,
temperature and TDS, the following should be used for comparison purposes only.

1. Industry standards measure RO Membranes performance with no back pressure on the product water,

at 60 psig (414kPa) and 77°F (25°C). Further conditions on the above are 250 ppm TDS and a 30.6%

recovery rate. Production rate and TDS reduction gures are for a new Membrane that has been rinsed

for 24 hours. The production rate of a new Membrane can decrease by 10% per year or more,

depending upon the scaling and fouling tendencies of the Feed Water.

2. Measured at 50 psi, 77°±2°F, and 717 mg/l TDS per NSF/ANSI Standard 58.

3. Efficiency rating means the percentage of the inuent water to the system that is available to the user

as reverse osmosis treated water. Under operating conditions that approximate typical daily usage.

4. Recovery rating means the percentage of the inuent 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.

11

Non-potable Water Sources:

Do not attempt to use this product to make safe drinking water from non-potable water sources. Do not use
the system on microbiologically unsafe water, or water of unknown quality without adequate disinfection
before or after the system. This system is certied for cyst reduction and may be used on disinfected water
that may contain lterable cysts.

Arsenic Reduction:

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 reverse osmosis system.

Installations in The Commonwealth of Massachusetts:

The Commonwealth of Massachusetts requires installation be performed by a licensed plumber and do not
permit the use of saddle valves. Plumbing code 248--CMR of the Commonwealth of Massachusetts must be
followed in these cases.

The product water shall be tested periodically to verify the system is performing satisfactorily.

Product Water Testing:

The Reverse Osmosis System contains a replaceable membrane cartridge critical for the effective reduction
of total dissolved solids (TDS).

Replacement of the reverse osmosis membrane cartridge:

The reverse osmosis system contains a replaceable membrane cartridge critical to the efficiency of the
system. This membrane should be replaced every 18 months, or more often based on your local water. Only
replace the reverse osmosis membrane with a part approved for use in your Reverse Osmosis system.

12

SYSTEM MAINTENANCE

Prelter/Postlter

The pre-lters (sediment- stage 1 and carbon - stage 2) and post-lter (carbon - stage 4) are replaceable
cartridges, and it is recommended replacing these every 6 months. You may need to replace more often
with high water usage or high sediment level. Replacing these cartridges timely will protect the RO
membrane from high levels of chlorine and/or sediment. As these lters build up with sediment, you may
notice slower water output.

RO Membrane Cartridge

The RO membrane is located in stage 3. This membrane is a tightly wound membrane which reduces the
dissolved solids and organic matter. Cartridge life depends on pH and supply water hardness. Higher pH
shortens membrane life by causing pin-hole leaks. When output water quality and production rate
decrease, it is time to replace the membrane cartridge, typically after 24 months.

Flow rate and output are determined by 3 factors:
1 Incoming water temperature
2 Total dissolved solids (TDS) present in supply water
3 Incoming water pressure

Lower temperatures are directly proportional to slower ow rate. All membranes are tested at 77°F.
Incoming water temperature should not exceed 100°F. The RO Filter System should also not be installed in a
location susceptible to freezing.

The more TDS in the supply water, greater lter time is required. Incoming TDS should not exceed 1000 ppm.

Higher water pressure enables a higher ow rate. Pressure must be above 40 psi for proper system
operation. You may consider installing a permeate pump or booster pump if your pressure is below 40 psi.

RO Cartridge Replacement

1 Remove the pre-lter cartridges rst to relieve pressure on the RO lter.
2 Turn RO lter to left and remove.
3 Remove post-lter cartridge.
4 Discard cartridges.
5 Install new cartridges in reverse order turning to the right to secure:

a – Post-lter (stage 4)

b – RO membrane (stage 3)

c – Pre-lter (stage 2)

d – Pre-lter (stage 1)
6 Purge RO Filter System as outlined in Step Eight.

13

Pre-Filter & Post-Filter Cartridge Replacement

1 Remove pre-lter cartridge by turning to the left.
2 Remove post-lter cartridge by turning to the left.
3 Discard cartridges.
4 Install new cartridges in reverse order by turning to the right:

a – post-lter

b – pre-lters
5 Purge RO Filter System as outline in Step Eight.

Drain Flow Restrictor

The restrictor is vital for proper operation of the RO membrane cartridge as it keeps water owing through
the membrane at the proper rate ensuring the water produced is the best quality. It is recommended the
restrictor assembly be periodically inspected to be sure it is clean and unrestricted. If service is required on
the drain ow assembly, disassemble and reassemble as outlined in Step Six.

14

Excalibur Water Systems

142 Commerce Park Drive, Unit M & N
Barrie, Ontario L4N 8W8 CANADA

www.excaliburwater.com