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ASHRAE Standard 18 Methods of Testing for Rating Drinking-Water Coolers with Self-Contained Mechanical Refrigeration - Reapproved 2013, 2008
- 18_2008 (RA_2013)_revisedtextproof4.pdf [Go to Page]
- FOREWORD
- 1. PURPOSE
- 2. SCOPE [Go to Page]
- 2.1 This standard applies to self-contained, mechanically refrigerated drinking-water coolers as described below:
- 2.2 This standard does not apply to
- 2.3 This standard does not
- 3. DEFINITIONS
- 4. INSTRUMENTATION AND APPARATUS [Go to Page]
- 4.1 Temperature-Measuring Instruments. Temperature-measuring instruments shall be in accordance with Sections 4.1.1 through 4.1.3. For additional information on temperature-measuring instruments, refer to ANSI/ ASHRAE Standard 41.1.1
- 4.2 Temperature Measurements. Temperatures shall be measured in accordance with Sections 4.2.1 through 4.2.4. For additional information on temperature measurements, refer to ANSI/ASHRAE Standard 41.1.1 [Go to Page]
- Figure 1 Locations for determination of internal refrigerated-compartment temperatures.
- 4.3 Electrical Instruments
- 4.4 Electrical Measurements. Electrical measurements of volts, amperes, and watts shall be measured at the electric service connection to the water cooler with the meters wired into the circuit in such a way that errors due to meter power usage are m...
- 4.5 Water-Flow Instrument and Measurements
- 4.6 Pressure Measurements
- 5. METHODS OF TESTING [Go to Page]
- 5.1 General. The water cooler shall be tested with all panels and baffles in place and shall be located in a controlled-temperature room in a position corresponding to that of normal usage as specified in the manufacturer’s installation instruction...
- 5.2 Bottle-Type Water Coolers
- 5.3 Pressure Water Coolers
- 5.4 Compartment-Type Water Coolers. Compartment- type water coolers shall be tested in accordance with Section 5.7 or 5.8, whichever applies, except for the following: [Go to Page]
- TABLE 1 Capacity Test Measurements and Data to Be Recorded
- 5.5 Hot-and-Cold-Type Water Coolers. A hot-and-cold- type water cooler shall be tested in accordance with the procedure applicable to the type of water cooler except that water-cooling tests shall be made with the hot-water portion cycling “no load...
- 5.6 Remote-Type Water Coolers [Go to Page]
- Figure 2 Test enclosure for remote-type water cooler.
- 5.7 Capacity Test for Ratings
- 5.8 Hot-Water-Dispenser Capacity Test [Go to Page]
- TABLE 2 Standard Rating Conditions
- 5.9 Energy Use for Bottle-Type Water Coolers. Daily standby energy use, Es (kWh), for a 24 h period shall be measured in accordance with Sections 5.2.1.1, 5.2.1.2, 5.2.1.3, 5.2.1.4, and 5.2.1.5.
- 6. REFERENCES [Go to Page]