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BS ISO 13256-2:2021

BS ISO 13256-2:2021

$167.15

Water-source heat pumps. Testing and rating for performance – Water-to-water and brine-to-water heat pumps

Published By Publication Date Number of Pages
BSI 2021 36
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1.1

This document establishes performance testing and rating criteria for factory-made residential, commercial and industrial, electrically-driven, mechanical- compression type, water-to-water and brine-to-water heat pumps. The requirements for testing and rating contained in this document are based on the use of matched assemblies.

1.2

Equipment may be designed for rating at one or several source and load side temperature conditions described in this document.

1.3

This document does not apply to the testing and rating of individual assemblies for separate use, nor to the testing and rating of heat pumps covered in ISO 5151, ISO 13253 or ISO 13256‑1.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
9 Introduction
11 1 Scope
2 Normative references
3 Terms and definitions
14 4 Symbols
15 5 Rating and test conditions
5.1 Rating conditions for the determination of net capacities
5.1.1 Ratings
5.1.2 Load side liquid pump adjustment
16 5.1.3 Source side liquid pump adjustment
5.1.4 Liquid flow rates
17 5.1.5 Installation and connection of the unit
5.1.6 Test liquids
18 5.2 Rating test conditions for cooling and heating capacities
19 6 Performance Requirements
6.1 General
6.2 Maximum operating conditions test
6.2.1 Test conditions
6.2.2 Test procedures
20 6.2.3 Test requirements
21 6.3 Minimum operating conditions test
6.3.1 Test conditions
6.3.2 Test procedures
6.3.3 Test requirements
22 6.4 Enclosure sweat and condensate test
6.4.1 General
6.4.2 Test conditions
23 6.4.3 Test procedures
6.4.4 Test requirements
7 Test methods
7.1 General
7.2 General test requirements
7.3 Equipment installation
24 7.4 Cooling and heating capacity tests procedure
7.4.1 Reconditioning period
7.4.2 Data collection period
7.4.3 Net cooling capacity
7.4.4 Net heating capacity
25 7.5 Uncertainties of measurement
7.6 Data to be recorded
26 7.7 Uncertainties of measurements and permissible deviations for steady-state cooling and heating capacity tests
27 7.8 Test results
8 Marking provisions
8.1 Nameplate requirements
8.2 Nameplate information
28 8.3 Designation of standard rating capacities
8.4 Refrigerant Designation
9 Publication of ratings
9.1 Published ratings
9.2 Additional ratings
29 Annex A (informative) Refrigerant enthalpy test method
31 Annex B (normative) Liquid enthalpy test method
33 Annex C (informative) Additional ratings based upon previous standard version ISO 13256‑2:1998
35 Bibliography

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BS ISO 13256-2:2021
$167.15