Rinnai REU- A1620WD-IND Operation And Installation Manual page 32

Quality system standard
ISO 9001
The design, development and manufacture of gas water heating appliances done under Rinnai's quality management
system is certified under the quality management system Standard ISO 9001.
Certified by: Japan Gas Appliances Inspection Association - JIA-QA Center
Web. http://www.rinnai.com
U340-1753(00)