4PRO PET Series User manual

Note: PET Series tanks are certified to NSF Standard 61
Domestic Hot, but are suitable for temperatures up to 200o F.
Explosion Hazard This expansion
tank is designed for water storage at a
This expansion tank and the associated
C a l i F o r n i a pro p o s i T i o n 6 5
WarninG! This product contains a chemical known by the State of
California to cause cancer and birth defects or other reproductive harm.
(California installer-California law requires that this notice be given to the
consumer/end user of this product.) For more information, contact the
manufacturer at [phone].
These instructions and warnings are subject to periodic updates on The
Granite Group website www.thegranitegroup.com and should be
regularly reviewed by the consumer for important safety and instruction
updates.
The Granite Group Wholesalers, LLC. 6 Storrs Street, Concord, New Hampshire 03301, Call [phone], www.thegranitegroup.com
© 2018 Rev. 6.18
The Granite Group Wholesalers, LLC. 6 Storrs Street, Concord, New Hampshire 03301, Call [phone], www.thegranitegroup.com
© 2018 Rev. 6.18
THIS IS THE SAFETY ALERT SYMBOL. IT IS USED TO
ALERT YOU TO POTENTIAL PERSONAL INJURY
HAZARDS. OBEY ALL SAFETY MESSAGES THAT
FOLLOW THIS SYMBOL TO AVOID POSSIBLE INJURY,
DEATH, OR PROPERTY DAMAGE.
INDICATES A POTENTIALLY HAZARDOUS SITUATION
WHICH, IF NOT AVOIDED, COULD RESULT IN
SERIOUS INJURY OR DEATH AND/OR SIGNIFICANT
PROPERTY DAMAGE.
INDICATES A POTENTIALLY HAZARDOUS SITUATION
WHICH, IF NOT AVOIDED, MAY RESULT IN MINOR OR
MODERATE INJURY OR RESULT IN PROPERTY
DAMAGE.
PRODUCTS COVERED: THERMAL EXPANSION TANKS MANUFACTURED AND DISTRIBUTED BY THE GRANITE GROUP
Important: Read carefully the installation, operating and maintenance instructions manual ("Manual") to avoid serious injury and/or property
damage and to ensure safe use and proper care of this product.
Warranty: Warranty is extended to all purchasers of the new product. The warranty is non-transferable. The Granite Group warrants to the
purchaser or first user of the new product that at the time of manufacture, the product is free from defect in materials or workmanship for (1)
year from the date of manufacture. Any warranty claim must be made within (1) year unless another time period is set forth in the manual,
measured from the date of manufacture.
In the event of a breach of the foregoing warranty and upon proper and timely notification to The Granite Group, The Granite Group
will, at its option either: make repairs to correct the defect in material or workmanship, or supply and ship either new or used replacement parts
or products. The Granite Group will not accept any claims for, nor will The Granite Group be responsible for any other costs including labor.
Exclusions: This warranty does not cover any failure or problem unless it was caused by a defect in material or workmanship. In addition, this
warranty shall not apply:
•
•
If the product isnot correctly installed, operated, repaired or maintained as described in the manual provided with the product.
To any failure ormalfunction resulting from (i)misuse or abuse, (ii) improper or negligent handling, shipping (by anyone other than The
Granite Group), storage, use or operation, or(iii) damages tothe tank caused by lightning, floods, fire, freezing or anyother environmental
condition.
•To damages caused by anyunauthorized alteration tothe product, orany attempt torepair tank leaks or parts.
•Toany failure or problem resulting from the use of the product for any purpose other than those specified in the manual.
•If the product is used anywhere except the UnitedStates, its territories or possessions, or Canada.
•To labor costs, shipping charges, service charges, delivery expenses, administrative fees or any costs incurred inremoving or reinstalling the
products.
•To any claims submitted toThe Granite Group ordealer more than 30days after expiration ofthe applicable warranty time period described
inthis warranty.
•To anyrepair or replacement costs not authorized in advance by The Granite Group.
Warranty Limitations: All implied warranties including the implied warranties or merchantability and fitness for a particular purpose are specifically
disclaimed.
Limitations of Remedies: The remedies contained in this warranty are the purchaser's or first user's exclusive remedies. In no circumstances will
The Granite Group be liable for more than, and purchaser-first user's remedies shall not exceed, the price paid for the product. In no case shall The
Granite Group be liable for any special, indirect, incidental or consequential damages, whether resulting from non-delivery or from the use, misuse or
inability to use the product or from defects in the product or from The Granite Group's own negligence or other tort. These exclusions apply
regardless of whether such damages are sought for breach of warranty, breach of contract, negligence, strict liability, in tort or under any other legal
theory. Excluded damages include, but are not limited to, inconvenience, loss or damage to property, mold, loss of profits, loss of savings or
revenue, loss of use of the products or any associated equipment, facilities, building or services, downtime, and the claims of third parties including
customers.
What To Do If You Have a Problem Covered By This Warranty: You must notify The Granite Group or dealer who sold you the product within 30
days of the event leading to the warranty claim. Any covered warranty service must be authorized by The Granite Group dealer that sold you the
product. If you do not receive a prompt response, call The Granite Group directly at [phone]. Notice of a warranty claim should be submitted
within 60 days of the event leading to the claim by the authorized distributor/dealer to The Granite Group at the following address:
The Granite Group Wholesalers, LLC, 6 Storrs Street, Concord, NH 03301.
Before The Granite Group determines to provide any replacement part or product, it may, as a pre-condition to making such a determination, require
that the warranty claimant ship the product, postage prepaid, to The Granite Group and provide proof of purchase evidenced by the original sales
receipt.
Replacement Product Warranty: In case of replacement of a product or any component part, The Granite Group reverses the right to make
changes in the design, construction, or material of the substitute components or products, which shall be subject to all of the terms and limitations of
this warranty, except that the applicable warranty periods shall be reduced by the amount of time the warranty claimant owned the product prior to
submitting notification or the warranty claim.
OWNERS RECORD KEEP FOR LATER USE
Serial Number (see tank data label at bottom of tank):
Model (see tank data label at bottom of tank):
Date Installed:
Installer Name:
Telephone Number:
Retain copy of canceled check and installation receipt
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CAUTION
GRANITE GROUP LIMITED PRODUCT WARRANTY INSTALLATION, WARNINGS, AND OPERATION INSTRUCTIONS
PET SERIES THERMAL EXPANSION TANKS
OPERATION
This thermal expansion tank designed to maintain safe
water pressures in a domestic water heating system
that utilizes a back-flow preventer or check valve. It
features a butyl rubber diaphragm and polypropylene
liner to separate the system water from the tank's inner
walls and pre-charge. The system connection is
stainless steel and the tank is finished with an
appliance quality paint to minimize corrosion.
WHAT IT DOES
Adding a back-flow preventer, water meter with a
check valve, or any other "no return" valve to a
domestic water heating system creates a closed-loop
system. When water heats up, it expands which can
cause unsafe operating pressures and cause nuisance
operation of the water heater's safety relief valve.
Adding a thermal expansion tank to the cold water inlet
of the water heater creates a reservoir for he expanded
water. Water enters the tank and is released back into
the system on demand. The goal is to avoid dripping
relief valves and improve the safety of the system.
stalled by a Qualified Professional
following all local and national plumbing and
electrical codes. Read and understand fully
the instructions included here and those on
The Granite Group website which are
updated on a regular basis. This product
must be inspected annually by a qualified
professional for any signs of corrosion or
leakage and replaced immediately if these
signs are present. Failure to follow these
instructions may result in serious injury or
death and/or property damage and will void
the product warranty.
This product
must be in-
maximum pressure of 150 psi and a maximum temperature of 200 F. A
properly sized pressure relief valve set at a maximum of 150 psi must
be installed in the system. This tank is shipped with a pre-charge of 40
psi and any adjustment to the pre-charge must be done prior to
installation and at ambient temperature. Do not adjust the pre-charge of
this tank if the product is corroded or damaged or shows any signs of
diminished integrity. The maximum allowable pre-charge in this
expansion tank is 80 psi. Do not adjust the pre-charge of the expansion
tank with the system under pressure. Failure to follow these instructions
is UNSAFE and may result in serious injury or death and/or property
damage.
piping will in time leak. This tank must be installed in a location that
allows for easy access, visual inspection and where water leakage will
not cause property damage. Installation must include a means for
adequate drainage. This tank must not be installed in a location that is
subject to freezing. This tank must be installed in the vertical position.
The manufacturer of this product is not liable or responsible for any
water damage associated with the installation and/or failure of this
product. Failure to follow these instructions will void the warranty and
may result in personal injury, death and/or property damage.
This tank is intended for use on potable
water systems only and any other use
may be dangerous and will void the warranty. This product's
performance and lifespan can be significantly and adversely impacted
by aggressive water conditions. A water test should be conducted at
regular, periodic intervals specifically looking for corrosive water, acids
and other relevant water contaminants which, if present, must be
treated immediately and appropriately. The system piping must be
properly grounded to Earth and a dielectric union is recommended in
the installation. Failure to follow these instructions may result in serious
injury, death and/or property damage.
PET SERIES

This expansion tank and the entire system must be checked annually by a qualified professional.
Visually examine the tank and its connection to the system piping looking for any signs of water leakage or corrosion on the
exterior of the tank or the connection.
If this expansion tank shows any visible signs of leaking, corrosion or rusting, the tank must be replaced
immediately to avoid personal injury or property damage. Do not adjust the tank air pressure if there
are any signs of corrosion on the tank. Failure to follow these instructions may result in serious injury or death and or
property damage.
A
B
C
DIMENSIONS & CA ACITIES
MATERIALS OF CONSTRUCTION
Tank: 16 gauge cold rolled steel
Finish: Appliance quality paint for indoor or outdoor installation
Water chamber: 100% butyl rubber, lined with polypropylene
Connection: Stainless Steel
Testing: High pressure, seam weld, helium, final
precharge check
Air valve: Brass valve with o-ring seal
Warranty: One year
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Rev. 5.13
LOCATION
Select a location where a water leak will not cause prop-
erty damage and provides adequate means for water
drainage. This expansion tank and the associated piping
may in time leak. The manufacturer is not responsible for
any water damage that may occur in association with the
expansion tank installation.
Disconnect or shut off the electrical
power source to the water heater.
Shut off the water supply to the system and remove all
water pressure from the system. Failure to follow these
instructions may result in serious injury or death and or
property damage.
The tank is designed to be supported by the system
piping. Make sure that there is adequate means of
supporting the system piping and if necessary add
strapping, brackets or pipe hangars.
DO NOT INSTALL THIS EXPANSION TANK IN THE
HORIZONTAL POSITION.
Install the expansion tank in the incoming water line to the
water heater between the water heater and the backflow
preventer or check valve (see Fig. 1). Adequate thread
sealant (pipe dope) must be added to ensure a leak free
installation.
Before turning on the water supply to the system, open a
hot water faucet to prevent any damage to the water
heater and remove air from the system piping. Turn on the
water supply and inspect the installation for water leaks
paying close attention to the connection between the ex-
pansion tank and the piping.
Follow the water heater manufacturer’s instructions for
proper start-up of the heater and the system.
Remove the protective cap from the air valve.
Check the tank pre-charge pressure using a standard tire pressure gauge.
If required add air to the tank using a manual bicycle tire pump until the proper pre-charge pressure is reached.
Replace the protective cap on the air valve.
fig. #1
PET SERIES
Model Volume
(gallons)
Max.
Acceptance
Volume
(gallons)
System
Connection
(inches)
Dimensions (inches) Weight
(lbs)
Diameter Height
PET 5 2.1 1 ¾ MNPT 8 11.6 5
PET 12 4.8 2.5 ¾ MNPT 11 14.5 10
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BEFORE INSTALLATION
INSTALLATION
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MAINTENANCE
SPECS/DIMENSIONS
Maximum working pressure 150 PSIG. Maximum working temperature, internal and external 200 degrees F. Tank pre-charge 40 PSIG.
NOTE: PET Series tanks are certified to NSF Standard 61 Domestic Hot, but are suitable for temperatures up to 200 degrees F.
PRODUCT INSPECTION
Visually inspect the product for any signs of damage that may have occurred during transportation. If the tank is dented,
bent or scratched, return the product to the original purchase point for replacement.
PRE-CHARGE ADJUSTMENT
This expansion tank is shipped from the factory with a pre-charge of 40 PSI. Any adjustments to the factory pre-charge
must be done prior to initial tank installation and with 0 PSI pressure on the system. DO NOT ADJUST THE PRE-
CHARGE OF THE THE EXPANSION TANK WITH THE SYSTEM UNDER PRESSURE!
The expansion tank should be pre-charged to the incoming system water pressure but must not exceed 80 PSI. Failure
to properly adjust the pre-charge will shorten the life expectancy of the product
TO ADJUST TANK PRE-CHARGE: