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BS ISO 13256-1:2021

BS ISO 13256-1:2021

$198.66

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

Published By Publication Date Number of Pages
BSI 2021 56
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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-air and brine-to-air heat pumps. The requirements for testing and rating contained in this document are based on the use of matched assemblies.

1.2

Equipment designed for rating at one liquid temperature range under this document may not be suitable at all liquid temperature ranges covered 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 13256‑2.

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
16 5 Rating and test conditions
5.1 Rating conditions for the determination of net capacities
5.1.1 Ratings
5.1.2 Power input of fans for heat pumps without duct connection
5.1.3 Power input of fans for heat pumps with duct connection
17 5.1.4 Power input of liquid pumps
5.1.5 Airflow rates
18 5.1.6 Liquid flow rates
19 5.1.7 Test liquids
5.2 Rating test conditions for cooling and heating capacities
20 6 Performance Requirements
6.1 General
6.2 Maximum operating conditions test
6.2.1 Test conditions
6.2.2 Test procedures
21 6.2.3 Test requirements
22 6.3 Minimum operating conditions test
6.3.1 Test conditions
6.3.2 Test procedures
6.3.3 Test requirements
23 6.4 Enclosure sweat and condensate test
6.4.1 General
6.4.2 Test conditions
24 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
7.4 Cooling and heating capacity tests procedure
7.4.1 General
7.4.2 Reconditioning period
25 7.4.3 Data collection period
7.4.4 Net total cooling capacity
7.4.5 Net heating capacity
26 7.5 Uncertainties of measurement
7.6 Data to be recorded
7.7 Uncertainties of measurements and permissible deviations for steady-state cooling and heating capacity tests
28 7.8 Test results
29 8 Marking provisions
8.1 Nameplate requirements
8.2 Nameplate information
8.3 Designation of standard ratings capacity
8.4 Refrigerant designation
9 Publication of ratings
9.1 Published ratings
30 9.2 Additional ratings
31 Annex A (normative) Test requirements
37 Annex B (informative) Airflow measurement
44 Annex C (normative) Indoor air enthalpy test method
47 Annex D (informative) Refrigerant enthalpy test method
49 Annex E (normative) Liquid enthalpy test method
51 Annex F (informative) Correction of fan or pump power input for external static pressures other than zero
52 Annex G (informative) Additional ratings based upon previous standard version ISO 13256‑1:1998
53 Annex H (informative) Cooling condensate measurements
54 Bibliography

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BS ISO 13256-1:2021
$198.66