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ASHRAE Standard 29-2024 -- Method of Testing Automatic Ice Makers (ANSI Approved), 2024
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- Addenda
- Errata
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- ANSI/ASHRAE Standard 29-2024 [Go to Page]
- Contents
- Foreword
- 1. Purpose
- 2. Scope
- 3. Definitions
- 4. Classification [Go to Page]
- 4.1 Method of Rejecting Heat
- 4.2 Type of Ice Harvested
- 5. Instruments And Apparatus [Go to Page]
- 5.1 Test Room
- 5.2 Temperature Measuring Instruments
- 5.3 Electrical Instruments
- 5.4 Water Measuring Instruments
- 5.5 Ice Weighing Instruments
- 5.6 Water Pressure Instruments. Instruments used to measure water pressure at the ice maker inlet shall have accuracy and readability each of 2.0% of the value measured.
- 5.7 Humidity instruments. Instruments used to measure ambient relative humidity shall be measured with an instrument accuracy of ±6.0 percent.
- 5.8 Sampling Rate. The maximum interval between data samples for humidity, pressure, temperature, flow rate, and voltage shall be no more than five (5) seconds.
- 6. Test Methods [Go to Page]
- 6.1 The voltage shall be measured at the ice-maker service connection, with the ice maker in operation, and shall meet the following:
- 6.2 The temperature of the supply water within the conduit shall be measured within 203 mm (8 in.) of the ice maker by inserting the temperature measuring instrument directly within the water stream or within a well inserted into the conduit. Water t...
- 6.3 The pressure of the supply water within the conduit shall be measured within 203 mm (8 in.) of the ice maker and shall remain within the specified range during the period starting five (5) seconds after water starts flowing into the ice-maker inl...
- 6.4 For an air-cooled ice maker, ambient temperature shall be measured with unweighted sensors at a location geometrically centered to the inlet area at a distance of 0.3 m (1 ft) from the air inlet. Where more than one inlet is provided, ambient tem...
- 6.5 Automatic ice makers shall be tested with a minimum ambient relative humidity of 30% throughout testing.
- 6.6 Automatic ice makers shall be tested according to the manufacturer’s specified minimum rear clearances requirements, or 0.9 m (3 ft) from the rear of the automatic ice makers, whichever is less. All other sides of the automatic ice makers and a...
- 6.7 Bins shall be used when testing and shall be filled one-half full with ice. Ice makers that convey ice through a conduit to a remote bin shall be tested with the minimum length of conduit that can be used. For an automatic ice maker with an autom...
- 6.8 For ice makers that have water-cooled condensers, the quantity of water shall be determined separately for the condenser and ice-making section.
- 6.9 The ice maker shall be set up prior to testing and shall be adjusted in accordance with the manufacturer’s recommendations.
- 6.10 Heat exchangers and other accessories shall be used only if they are part of standard equipment furnished with the model tested.
- 6.11 The ice maker shall be completely assembled with all panels, doors, and lids in their normally closed positions.
- 6.12 Conduct testing without baffles unless the baffle either is a part of the automatic ice maker or shipped with the automatic ice maker to be installed according to the manufacturer’s installation instructions.
- 6.13 Test automatic ice makers equipped with automatic dump water control using a fixed dump water setting that is described in the manufacturer’s written instructions shipped with the unit as being appropriate for water of normal, typical, or aver...
- 7. Test Procedures [Go to Page]
- 7.1 Stabilization and Capacity Requirements
- 7.2 Net Cooling Effect of Harvested Ice Test. The procedure for determining the net cooling effect of harvested ice, as described in Normative Appendix A, Section A3, shall be performed on each continuous-type ice maker at the same conditions as the ...
- 7.3 Water Consumption Test
- 7.4 Energy Consumption Test
- 7.5 Product Density Test
- 8. Data To be Reported [Go to Page]
- 8.1 General
- 8.2 Capacity Test
- 8.3 Water Consumption
- 8.4 Energy Consumption
- 8.5 Product Density
- 9. Calculation Of Results [Go to Page]
- 9.1 Data Reporting. All intermediate calculations prior to the reported value, as applicable, must be performed with unrounded values. The harvest rate (Section 9.2.1), energy use (Section 9.4), condenser water use (Section 9.3.1), and potable water ...
- 9.2 Weight Calculation
- 9.3 Water Consumption Calculation
- 9.4 Energy Consumption Calculation. The energy consumption shall be calculated as follows. For each intercepted sample,
- 9.5 Density Calculation. The density shall be determined as follows:
- Normative Appendix A: Method of Calorimetry [Go to Page]
- A1. Instrumentation Required
- A2. Procedure for Calorimeter Constant Determination
- A3. Procedure for Determining Net Cooling Effect of Harvested Ice
- Informative Appendix B: Bibliography [Go to Page]
