Commercial Ice Machines Key Product Criteria

Energy and Water Efficiency Performance:

Qualifying models shall not exceed the energy and water consumption limits listed in the table below.

Requirements:

Effective January 1, 2008

Commercial ice machines must meet the energy and water efficiency standards below to be eligible for ENERGY STAR. Ice machines that use water-cooled technology as well as flake and nugget ice machines are not eligible for ENERGY STAR under Version 1.0. EPA intends to include flake and nugget ice machines once a test standard is made available and a robust database is established that may be used to derive performance requirements.

Table 1: Efficiency Requirements for Commercial Cubed Ice Machines
Equipment Type Harvest Rate, H (lbs ice/day) Energy Use Limit (kWh/100 lbs ice) Potable Water Use Limit (gal/100 lbs ice)
Air-Cooled
IMH < 450 9.23 – 0.0077H <= 25
>= 450 6.20 – 0.0010H <= 25
RCU (without remote compressor) < 1000 8.05 – 0.0035H <= 25
>= 1000 4.64 <= 25
RCU (with remote compressor) < 934 8.05 – 0.0035H <= 25
>= 934 4.82 <= 25
SCU < 175 16.7 – 0.0436H <= 35
>= 175 9.11 <= 35

Testing Procedures:

Partner agrees to use the Air-Conditioning and Refrigeration Institute (ARI) Standard 810-2006, Performance Rating of Automatic Commercial Ice-Makers.

Definitions:

Ice Machine

A factory-made assembly (not necessarily shipped in one package) consisting of a condensing unit and ice-making section operating as an integrated unit, with means for making and harvesting ice. It is an assembly that makes up to 4,000 lbs of ice per day at Standard Ratings Conditions, as defined in Section 5.2.1 of ARI Standard 810-2006, and may also include means for storing or dispensing ice, or both.

Ice Making Head (IMH)

A model with the ice-making mechanism and the condensing unit in a single package, but with a separate ice storage bin.

Remote Condensing Unit (RCU) or Split System Unit

A model in which the ice-making mechanism and condenser or condensing unit are in separate sections.

Self-Contained (SCU)

A model in which the ice-making mechanism and storage compartment are in an integral cabinet.

Air-Cooled

An ice machine wherein motor driven fans or centrifugal blowers move air through the condenser to remove heat from the refrigerant.

Cubed

Cubed ice machines have an alternate freezing and harvesting period. Water is circulated over an evaporator where it freezes until cubes are fully formed. The cubed ice is then harvested and moved to storage. The ice may be in cube shape, or in a variation of a solid shape.

Flake

Flake ice machines produce ice continuously, usually in a barrel-shaped evaporator. An auger inside the evaporator scrapes ice off the sides into a storage bin.

Nugget

Nugget ice machines use the same process as flake machines but compress the ice flakes into nuggets.