Interpretation #6779

Published June 23, 2011

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Original Request

Code Version
2007
Code
BUILDING
Code Description
Building
Chapter
13
Section
407/8.AB.3.2/3
Topic
Minimum Efficiency Requirements

Question

Are there minimum energy efficiency requirements for heat pump chillers (units that produce chilled water in summer, and reverse cycle to produce hot water in winter)?

Answer Published 06/23/2011 at 1:44 PM

If the equipment is a water chiller, Table
13-407.ABC.3.2.1C applies. The Code is silent on the
efficiency in heating mode, so the selection and
demonstration of compliance should be based on the cooling
mode efficiency.

Commentary

None.