Navien PeakFlowE GXXX001725 Technical Document

Installation, Operation and
Maintenance Manual
Model #GXXX001725
PeakFlowE
Chemical-Free, Salt-Free Scale Prevention
Introduction
The PeakFlowE Anti-Scale System provides protection from scale
formation on internal plumbing surfaces. The PeakFlowE system
is a single cartridge-based system that must be installed on a
cold water line prior to a single residential water heating device
(water heater or tankless water heater).
The PeakFlowE system is built with the finest and most advanced
materials and each system is quality inspected and pressure
tested prior to shipment. With proper installation and routine
maintenance, you will have years of trouble-free operation.
Please refer to this manual when performing routine filter changes.
The instructions make periodic maintenance quick and easy and
ensure you will receive maximumbenefit from your system.
TM
System Specifications
Maximum Pressure: 90psi / 6.2 bar
Maximum Temperature: 100°F / 38°C
Minimum Temperature: 40°F / 5°C
Inlet/Outlet Connections: 3
/4" FNPT
Capacity: Media cartridge does not have a grain removal capacity.
However, other contaminants present in the water will gradually
degrade theeectiveness of this cartridge. Change the PeakFlowE
media cartridge (#GXXX001726) at least once every two years.
WARNING
!
Read this Manual BEFORE using this equipment.
Failureto read and follow all safety and use information
canresult indeath, serious personal injury, property
damage,ordamage to theequipment.
Keep this Manual for future reference.
WARNING
!
•Connect system to cold water supply only. Water temperature
cannot exceed 100°F / 38°C.
•System must be installed in a vertical, upright and level
position.
•PeakFlowETM
systems must not be used in conjunction with
polyphosphate or any other scale inhibitor.
•Do not use with water that is microbiologically unsafe or of
unknown quality without adequate disinfection before or after
the system.
PeakFlowETM
TM
TM
Service Flow Rate: Up to 6 gpm (23 lpm)
™Anti-Scale System
Continuous Flow Rate: Up to 4 gpm (15 lpm)
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Teflon ® is a registered trademark of E.I. Dupont de Nemours & Company.
Installation Precautions
•Do NOT install system on line pressure above 90 psi.
•Do NOT install system on HOT water line. Failure to limit
line temperature to 100°F may result in housing failure
and damage.
•Do NOT install the system backwards with the feed water
line connected to the outlet.
•Do NOT use liquid pipe compounds for fitting connections.
USE two to three wraps of Teflon®tape.
•Do NOT solder plumbing connections attached to filter
housing or inlet valve. Inlet valve and filter housing will be
damaged by high temperature.
•Do NOT allow system to freeze. Turn off water supply to
housing and drain housing if temperature falls below 40°F.
•Do NOT install system in direct sunlight or where system is
exposed to harsh chemicals or may be subjected to being
struck by moving equipment, carts, mops or any other item
that may cause damage.
•ALLOW a minimum of 3” under the housing to allow for
filter replacement.
•IF water hammer is evident, install water hammer arrestors
before the PeakFlowETM
unit.
•Do NOT overtighten fitting connections into inlet valve
or housing outlet.
•Always back-up valves and fittings with a wrench when
installing a fitting to avoid turning the valve.
•Do NOT install the unit behind equipment where it may
be difficult to access the system for filter replacement.
Position the PeakFlowETM
unit in a suitable location. The direction
of flow through the PeakFlowETM
unit is always through the inlet
first; keep this in mind when determining installation location.
Do NOT mount the PeakFlowETM
system near any source of heat.
Also, do not mount the system above any device or area that
would be adversely effected by water.
WARNING
!
•Do not discard this manual after installation. This manual
contains important operation, maintenance and precaution -
ary information. Please present this manual to user/operator/
owner after installation.
•It is strongly encouraged that you read this manual before
installing the system to ensure the best possible installation.
•Installation must conform to all local and state plumbing
codes and regulations.
•Notice to user/operator/owner: Please retain this manual for
future reference for parts, maintenance or troubleshooting.
•It is recommended that all personnel responsible for operation
and maintenance of this product read the precautions,
operation and maintenance sections of this manual.
NOTICE
Feed Water Chemistry Requirements
pH 6.5 to 8.5
Hardness (maximum) 75 grains (1282 ppm CaCO3)
Water Pressure 15 psi to 90 psi (1.03 bar to 6.2 bar)
Temperature 40°F to 100°F (5°C to 38°C)
Chlorine < 2 ppm
Iron (maximum) 0.3 mg/l
Manganese (maximum) 0.05 mg/l
Copper 1.3 ppm*
Oil & H2S Must be Removed Prior to PeakFlowE
Polyphosphate Must be Removed Prior to PeakFlowE
Silica (maximum) 20 ppm**
**PeakFlowE + media does not reduce silica scaling. While silica
tends to have a less significant effect on scale formation than
other minerals, it can act as a binder that makes water spots
and scale residue outside the plumbing system difficult to
remove.
* High levels of copper that originate from new copper plumbing
can foul the PeakFlowE media. After the installation of a new
copper plumbing system, wait a minimum of 4 weeks before
using the PeakFlowETM
system. Avoid applying excess flux on
the inner surfaces of the pipe and use a low-corrosivity water
soluble flux listed under the ASTM B813 standard.
WARNING
!
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3
1. Turn o all equipment to be fed by the PeakFlowETM System,
locate water supply shuto valve and turn OFF.
2. Determine if the water line has an existing water treatment
system. If so, examine system for use of polyphosphate or
other scale inhibitors. PeakFlowETM
will not be eective if used
in conjunction with other scale inhibitors. Remove the scale
inhibitors from the water line or discontinue installation.
3. Install a 3/4" full-ow ball valve on the water supply side
that will feed the water system.
4. Anchor the PeakFlowETM
system on a wall stud or suitable
mounting material spanning wall studs. System must be
vertical and upright.
5. Run a suitable line from the 3/4" full-ow ball valve at the
tap water source to the inlet ball valve on the left side of
the PeakFlowETM
system. Use 2-3 wraps of Teon®tape and
brace the inlet ball valve on the system with a wrench
when connecting the feed water line. NOTE: DO NOT
OVERTIGHTEN CONNECTION FITTING INTO BALL VALVE.
6. Select the appropriate size tubing for the equipment being
fed and connect it to the outlet of the PeakFlowETM
System.
NOTE: DO NOT connect the tubing to the equipment at this
time. Prior to making connection to the equipment, this line
will be used to facilitate ushing the system. As an option,
a drain valve in a tee on the outlet side of the PeakFlowETM
system could be provided in the line to facilitate ushing
when changing lters.
7. With PeakFlowETM
inlet valve closed, slowly open the 3 /4" full-
ow ball valve at the tap water source. Check for leaks.
8. If a drain valve was not installed on the outlet side of the
system, hold the tubing that will connect to equipment in
a clean bucket or over sink or drain. Open the system inlet
feed valve and allow water to ush through system for 2
minutes at the specied system ow rate to allow air bubbles
to escape. NOTE: NO ACTIVATION IS REQUIRED FOR THE
PeakFlowETM SYSTEM TO PERFORM PROPERLY. FLUSHING
IS RECOMMENDED TO ALLOW AIR TO ESCAPE THE
SYSTEM.
9. Make certain that the end of the tubing to be connected
to the equipment is clean and sanitary.
10. Connect tubing to equipment. Open all water supply valves
and check for leaks.
11.
If no leaks, turn on equipment and check for normal operation.
12. Attach the Service Log to the installed PeakFlowETM System
and ll in install date.
Installation
Installation Drawings & Dimensions
Dimensions — Weights
Model Dimensions Weight
A B C D E
in. mm in. mm in. mm in. mm in. mm lbs. kgs
GXXX001725 181⁄2470 41⁄2114 85⁄8219 10 254 3 76 15 6.8
The overall height and the height of the inlet fitting varies due to material variations and assembly tolerances. Please allow
additional clearance above the filter for making connections.
Wall
41⁄2"
5"
to inlet
Mounted to secure wall
on studs or wall panel –
Do not mount to unsupported
sheet-rock or gypsum board.
3
⁄ 4
ball valve inlet
connection to
water supply
C
131⁄2"
3" Min. Removal Clearance
22" Min to 50" A.F.F.
Installation Height
1"
on the cold water supply only
Mounted to secure wall
on studs or wall panel –
Do not mount to unsupported
sheet-rock or gypsumboard.
ball valve with 3⁄4"
FNPT inlet connection
from building
water supply
D
B
E
A
61⁄2"
3" Min. Removal Clearance
5"
3
⁄4
Water filtration unit must be installed
Full flow
Full flow

4
Filter Cartridge Replacement Procedure
1. IMPORTANT: All other equipment connected to the
PeakFlowE system must be turned o prior to shutting
o water supply from lters.
2. Turn OFF water to PeakFlowE system by closing the
Inlet Ball Valve.
3. Press the red button to release pressure.
4. Remove housing - use lter wrench if necessary.
5. Remove lterfrom housing.Clean inside of housing with
warm water. If desired, disinfect housing by adding a
teaspoon of household bleach to housing, ll with water, let
stand for 5 minutes, and then discard.
6. Insert new cartridge into lter housing. Match cartridge
model number to model number on bracket.
7. Check O-ring for damage and replace if damaged or
distorted. Make certain the O-ring is properly positioned and
reinstall lter housing (hand tighten only).
8. Slightly open the inlet ball valve; push the red pressure
relief button to release trapped air until a small amount of
water comes out - release the red button and fully open
the ball valve.
9. Open the ush valve downline from the lter housing (if
equipped) and ush the new cartridge to drain or bucket
for two (2) minutes or until water runs clear. If no ush valve
is present, disconnect line from equipment to ush to drain.
10. VERY IMPORTANT: With water supply inlet valve OPEN and
water ow conrmed, turn on connected equipment. Failure
to supply water to equipment may cause serious damage.
11. Record lter change on the service log.
Maintenance
Routine maintenance of your PeakFlowETM System involves periodic
filter cartridge changes and/or replacement of sump O-rings.
If the system sizing recommendations have been followed,
the PeakFlowETM cartridge should last two years.
Filter Change Frequency
Thefilters should be changed in response tothefollowing conditions.
GXXX001726 •24 months sinceinstallation or last filter change.
*Frequency of cartridge replacement will depend on volume of
systemusage.
Replacement Filter Cartridges
PeakFlowETM systems can only be used with PeakFlowE filter
cartridges. Use of replacement cartridges other than those
specified will void warranties, certifications and may compromise
equipment protection, water quality and equipment life.
Operation
With sufficient pressure, operation of the Navien PeakFlowETM
System is completely automatic. Dependable operation involves
only periodic filter changes and service documentation.
8.
4.
3.
2.
6. 7.
TM
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Replacement Parts for:PeakFlowE Anti-Scale System #GXXX001725
TM
Drawing ID # Description
1 10" Full Flow Housing, 3/4" ports w/PR
1a Full Flow O-ring
2 Ball Valve PVC, 3/4" F x M
3 Full Flow Mounting Bracket
4 Mounting Screws
5 PeakFlowE Replacement Cartridge
6 Pressure Relief Button (part of housing)
7 Full Flow Housing Wrench (not shown)
IN
OUT
inlet
outlet
4
6
5
1
1a
2
3
4X
PeakFlowE Replacement Media #GXXX001726
TM
TM

Navien, Inc. warrants its PeakFlowETM cartridge systems as follows:
•The PeakFlowETM cartridge system is warranted to be free of defects in materials and workmanship for 1 year from the date of original
shipment.
•PeakFlowETM cartridges are warranted for performance for a period of one year from the date of original installation when installed and
operated in accordance with the instructions in the corresponding Installation and Operation Manual.
•Carbon replacement filter cartridges are not warranted to perform for any period of time because the service life of replacement carbon filter
cartridges varies significantly with local water conditions and volume.
Conditions
1. The PeakFlowETM system must be installed in applications with municipally supplied water adhering to EPA guidelines with the exception of oil
and grease, copper, phosphate, silica and chlorine. See copper warnings on page 2 and condition number 5 below.
2. Any component failure must not result from abuse, re, freezing or other acts of nature, violence, or improper installation.
3. Equipment must be installed and operated in compliance with the local plumbing codes and on an approved water supply.
4. Equipment is limited to use at water pressures and temperatures that do not exceed our published specications.
5. Water supply must not exceed 2.0 PPM chlorine. For water supply exceeding 2.0 PPM chlorine, pretreatment is required.
(Please contact your water treatment specialist.)
6. Information, including model number, serial number, and date of installation, must be provided for any claims pertaining to equipment in
warranty.
7. Defective parts are subject to inspection by either Watts Regulator Company or any authorized representative before nal commitment of
warranty adjustment is made.
8. Navien, Inc. reserves the right to make changes or substitutions in parts or equipment with material of equal quality or value and
of then current production.
Limitations
Our obligation under this warranty with respect to the media cartridge is limited to furnishing a replacement for, or at our option, repairing any
part(s) to our satisfaction that prove defective within the warranty period stated above. Such replacement parts will be delivered to the owner
F.O.B. nearest factory, at no cost, excluding freight and local labor charges, if any.
Our obligation under this warranty with respect to the PeakFlowETM media will be limited to furnishing a replacement for the media within two
years from date of original installation. Such replacement media will be delivered to the owner F.O.B. nearest factory, at no cost, excluding freight
and local labor charges, if any. Damage to the media due to chlorine, other oxidizers or fouling caused by local water conditions or any other
operation outside of the limits shown under Specications, is not covered by this warranty.
THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY NAVIEN, INC. WITH RESPECT TO THE PRODUCT.
NAVIEN, INC. MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED. NAVIEN, INC. HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE.
The remedy described under this warranty shall constitute the sole and exclusive remedy for breach of warranty, and Navien, Inc. shall not be
responsible for any incidental, special or consequential damages, including without limitation, freight, handling, lost prots or the cost of
repairing or replacing other property which is damaged if this product does not work properly, other costs resulting from labor charges, delays,
vandalism, negligence, fouling caused by foreign material, damage from adverse water conditions, chemical, or any other circumstances over
which Navien, Inc. has no control. This warranty shall be invalidated by any abuse, misuse, misapplication or improper installation of the
product.
Some states do not allow limitations on how long an implied warranty lasts, and some states do not allow the exclusion or limitation of incidental
or consequential damages. Therefore the above limitations may not apply to you. This warranty gives you specic legal rights, and you may
have other rights that vary from state to state. You should consult applicable state laws to determine your rights. SO FAR AS IS CONSISTENT
WITH APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE APPLICABLE WARRANTY PERIODS STATED
ABOVE.
Limited Warranty
WARNING: This product contains chemicals known
to the State of California to cause cancer and birth
defects or other reproductive harm
(California law requires this warning to be given to
customers in the State of California.)
Navien, Inc. 20 Goodyear, Irvine, CA 92618; www.Navien.com
CALIFORNIA PROPOSITION 65 WARNING