1、Page 1 of 4 2014 ASHRAE. All Rights reserved. ERRATA SHEET FOR ANSI/ASHRAE STANDARD 20-1997 (RA 2006) Method of Testing for Rating Remote Mechanical-Draft Air-Cooled Refrigerant Condensers January 6, 2014 The corrections listed in this errata sheet apply to ANSI/ASHRAE Standard 20-1997 (RA 2006). Th
2、e first printing is identified on the outside back cover of the standard as “86039 PC 7/06” and the second printing as “Product Code: 86039 6/09”. Page Erratum 5 Figure 2 Recommended airflow- and temperature-measuring apparatus. Replace the current figure with the one shown below. 7 Figure 3 Externa
3、l static pressure measurement. Replace the current figure with the one shown below. 13 Figure A1. Replace the current figure with the one shown below. 14 COIL DIMENSIONS and COIL DATA. Replace the current figure and data table in the example on page 14 with the one shown below. Page 2 of 4 2014 ASHR
4、AE. All Rights reserved. Figure 2 Recommended airflow- and temperature-measuring apparatus. Page 3 of 4 2014 ASHRAE. All Rights reserved. Figure 3 External static pressure measurement. Figure A1 Orifice assembly. Standard 20-1997 (RA 2006) Errata Page 4 of 4 2014 ASHRAE. All Rights reserved. EXAMPLE
5、 COIL PHYSICAL DATA FORM Date Manufacturer Name & Address Condenser Unit Model Size, Type, Serial No. Laboratory Name Address Test Engineer ObserverLaboratory Test No. Test Duration St = Tube space traverse Sr= Tube space row Staggered or in-line tubes with continuous flat plate or configured plate
6、fins or microchannel tubes with fins. Airflow direction is for illustration only. COIL DATA 1. Coil model, size, & type 2. Tube arrangement: Staggered In-Line Microchannel 3. Type of tube: Smooth Enhanced Nominal OD 4. Type of fine: Smooth plate *Configured plate *Louvered *Lanced/Louvered Smooth sp
7、iral Crimped spiral Single-fin Other Tube plate 5. Fin collars: Full Partial None 6. LC: Fin collar height in. (mm) 7. Fin: Material Initial temper Nominal thickness Material Grade 8. *Fin/Coil Coating Trade name *Attach sketch for identification, including shape and dimensions *Attach specification sheet(s).
