[Code of Federal Regulations]
[Title 10, Volume 3]
[Revised as of January 1, 2001]
From the U.S. Government Printing Office via GPO Access
[CITE: 10CFR435.104]

[Page 426]
 
                            TITLE 10--ENERGY
 
                    CHAPTER II--DEPARTMENT OF ENERGY
 
PART 435--ENERGY CONSERVATION VOLUNTARY PERFORMANCE STANDARDS FOR NEW BUILDINGS; MANDATORY FOR FEDERAL BUILDINGS--Table of Contents
 
Subpart A--Voluntary Performance Standards for New Commercial and Multi-
 Family High Rise Residential Buildings; Mandatory for Federal Buildings
 
Sec. 435.104  Auxiliary systems and equipment.

                              4.1  General

    This section contains a few minimum requirements for auxiliary 
systems and equipment. Because auxiliary systems and equipment vary 
greatly among buildings, the section is not more comprehensive.

                        4.2  Principles of Design

    4.2.1  Energy recovery should be used when coincident thermal and 
refrigeration loads of similar magnitude are expected.
    4.2.2  Consideration shall be given to the use of waste heat, energy 
recovery or heat tape systems to conserve energy.

                        4.3  Minimum Requirements

    4.3.1  Transportation Systems.
    4.3.1.1  Automatic elevator and/or conveyor systems shall 
incorporate schedule controls and efficient motor controls, such as 
solid state control devices.
    4.3.2  Freeze Protection System.
    4.3.2.1  Boilers or water heaters used for purposes such as freeze 
protection in fire protection storage vessels and defrosting sidewalks 
and driveways shall meet the efficiency requirements of sections 8.3 or 
9.3 when they operate in excess of 750 hours per year.
    4.3.3  Retail Food and Food Service Refrigeration.
    4.3.3.1  Refrigeration systems containing multiple compressors shall 
have compressors sized to optimally match capacity with loads.
    4.3.3.2  Variable speed shall be considered.