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USE ONLY WITH POTABLE WATER SYSTEMS.

 

Do not operate in a setting with freezing 

temperatures or where the temperature can exceed 100°F and do not 

exceed the maximum working pressure specified for this Product.

READ CAREFULLY THE PRODUCT 

INSTALLATION & OPERATION INSTRUCTIONS.  

FAILURE TO FOLLOW THE INSTRUCTIONS AND WARNINGS MAY 

RESULT IN SERIOUS OR FATAL INJURY AND/OR PROPERTY 

DAMAGE, AND WILL VOID THE PRODUCT WARRANTY.  THIS 

PRODUCT MUST BE INSTALLED BY A LICENSED PROFESSIONAL.  

FOLLOW ALL APPLICABLE LOCAL AND STATE CODES AND 

REGULATIONS. IN THE ABSENCE OF SUCH CODES, FOLLOW THE 

CURRENT EDITIONS OF THE NATIONAL PLUMBING CODE AND 

NATIONAL ELECTRIC CODE, AS APPLICABLE.

This Product, like most Products under pressure, 

may over time corrode, weaken and burst or 

explode, causing serious or fatal injury, leaking or flooding and/or 

property damage. To minimize risk, a licensed professional must install 

and periodically inspect and service the Product. A drip pan connected to 

an adequate drain must be installed if leaking or flooding could cause 

property damage. Do not locate in an area where leaking could cause 

property damage to the area adjacent to the appliance or to lower floors 

of the structure.

RUPTURE OR EXPLOSION HAZARD. 

Do not 

expose Product to freezing temperatures or 

temperatures in excess of 100°F. Do not adjust the pre-charge or 

re-pressure this Product except during installation or regular inspection. 

Replace the Product and do not adjust the precharge if corroded, 

damaged or with diminished integrity. Adjustments to pre-charge must be 

done at ambient temperature only. Failure to properly size the Product or 

follow these instructions may result in excessive strain on the system and 

may lead to Product failure, serious or fatal personal injury, leakage and/

or property damage.

A relief valve must be installed to prevent pressure 

in excess of local code requirement or maximum 

working pressure designated in the Product Manual, whichever is less. 

At least once every 3 years or if discharge is present, a licensed 

professional should inspect the temperature and pressure relief valve 

and replace if corrosion is evident or the valve does not function.  

FAILURE TO INSPECT THIS VALVE AS DIRECTED COULD RESULT 

IN UNSAFE TEMPERATURE OR PRESSURE BUILD-UP WHICH CAN 

RESULT IN PRODUCT FAILURE, SERIOUS INJURY OR DEATH  

AND/OR SEVERE PROPERTY DAMAGE AND VOID THE 

 

PRODUCT WARRANTY.

Chlorine & Aggressive Water: 

The water quality 

can significantly influence the life of this Product.  

You should test for corrosive elements, acidity, total solids and other 

relevant contaminants, including chlorine and treat your water appropriately 

to insure satisfactory performance and prevent premature failure.

This product can expose you to chemicals including 

lead, which is known to the State of California to 

cause cancer and birth defects or other reproductive harm. For more 

information go to www.P65Warnings.ca.gov.

AMTROL PRESSURISER

®

WATER PRESSURE BOOSTER SYSTEM 

WITH GUARDIAN CP

 CONTROL

INSTALLATION & OPERATION INSTRUCTIONS

NOTE:

  Inspect for shipping damage. Notify freight carrier or store where purchased immediately if damage is present.  To avoid risk of personal injury 

and property damage, if the product appears to be malfunctioning or shows signs of corrosion, call a licensed professional immediately.  Current copies 

of the product manual can be viewed at www.amtrol.com.  Use proper safety equipment when installing.

THIS IS THE SAFETY ALERT SYMBOL. IT IS USED TO ALERT YOU TO POTENTIAL PERSONAL INJURY AND OTHER 

HAZARDS. OBEY ALL SAFETY MESSAGES THAT FOLLOW THIS SYMBOL TO REDUCE THE RISK OF PERSONAL 

INJURY AS WELL AS PROPERTY DAMAGE.

Models RP-10HP, RP-15HP and RP-25HP 

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