Instructions / Assembly
 2
Table of Contents
Safety Information ..................................2
Warranty ..........................................2
Pre-Installation .....................................3
Tools Required ....................................3
Package Contents .................................3
Installation ........................................3
Sizing Information  ..................................4
Sizing For Residential Water Heaters ...................4
Safety Information
WARNING: Read these instructions completely before 
proceeding with the installation. Only qualied personnel 
may install or service this equipment in accordance 
with local codes and ordinances. Improper installation, 
adjustment, alteration, service, or maintenance can cause 
property damage, severe injury, or death.
WARNING: Do not exceed 80 psi (5.5 bar) air charge. Air 
charge pressure exceeding 80 psi (5.5 bar) could become 
hazardous and will void the warranty. Failure to follow 
these instructions could result in property damage, injury, 
or death.
WARNING: This expansion tank is designed and intended 
for water storage at a maximum pressure of 150 psi (10.3 
bar) and a maximum temperature of 200 °F (93 °C). Any use 
other than for potable water or a sustained or instantaneous 
pressure in excess of 150 psi (10.3 bar) or 200 °F (93 °C) is 
unsafe and could cause property damage, injury, or death.
WARNING: A relief valve must be installed to prevent 
pressure in excess of local code requirements or maximum 
working pressure designated in the product manual, 
whichever is lower. The relief valve must be inspected by 
a licensed contractor at least once every three years or if 
discharge is present. Failure to inspect the relief valve could 
result in unsafe temperature or pressure build-up, which 
can result in product failure, property damage, serious 
injury, or death.
WARNING: 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.
NOTICE: Water quality can signicantly inuence the life of the 
product. Test for corrosive elements, acidity, total solids, and other 
relevant contaminants, including chlorine, and treat your water 
appropriately to ensure satisfactory performance.
Warranty
The manufacturer warrants the product to be free from defect in materials and workmanship for a period of ve (5) years from date of 
purchase. This warranty applies only to the original purchaser and only to the products used in normal use and service. If the product is 
found to be defective, the manufacturer’s only obligation, and your exclusive remedy, is the repair or replacement of the product at the 
manufacturer’s sole discretion, provided the product has not been damaged through misuse, accident, alteration, modications, or general 
mishandling. The warranty shall not apply to the nish, as this is considered normal wear and tear
Contact the Customer Service Team at 1-800-305-1726 or visit www.HomeDepot.com.





