energy conservation program for certain commercial and industrial equipment test procedures for commercial packaged boilers 39 pages in english prethe u.s. department of energy doe proposes to amend the test procedure and applicable definitions for commercial packaged boilers as well as modify the sampling plans for commercial packaged boilers in its regulations pertaining to energy efficiency programs for certain programs for commercial and industrial equipment. this rulemaking will fulfill does statutory obligations to make its test procedure consistent with the applicable industry test procedure and to review its test procedures for covered equipment at least once every seven years. in this notice of proposed rulemaking nopr doe proposes to incorporate by reference certain sections of the american national standards institute ansi air-conditioning heating and refrigeration institute ahri standard 1500 2015 standard for performance rating of commercial space heating boilers and in addition incorporate amendments that clarify the coverage for field-constructed commercial packaged boilers and the applicability of does test procedure and standards for this category of commercial packaged boilers provide an optional field test for commercial packaged boilers with fuel input rate greater than 5 000 000 btu h provide a conversion method to calculate thermal efficiency based on combustion efficiency testing for steam commercial packaged boilers with fuel input rate greater than 5 000 000 btu h modify the inlet and outlet water temperatures during tests of hot water commercial packaged boilers establish limits on the ambient temperature and relative humidity conditions during testing modify setu and instrumentation requirements to remove ambiguity and standardize terminology and provisions for fuel input rate. this nopr also announces a public meeting to discuss and invite comments data and information about the issues and proposed amendments presented in this test procedure rulemaking for commercial packaged boilers. pre