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JB/T 15555-2026Ultra-low ambient temperature air source heat pump (water chilling) packages (English PDF)

超低环境温度空气源热泵（冷水）机组

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Also coversJB/T15555-2026 + JBT15555-2026

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Issued by

Ministry of Industry and Information Technology

Level / Type

Industry · Recommended

Issue date

February 13, 2026

Implementation date

September 1, 2026

Scope

JB/T 15555-2026 is the English-translated version of 超低环境温度空气源热泵（冷水）机组.

JB/T 15555-2026 applies to ultra-low ambient temperature air source heat pump (water chilling) packages. These are factory-built units that use outdoor air as the heat source and are designed to keep working in very cold outdoor conditions, supplying heating and chilled water. The standard treats the package as a refrigeration and air conditioning product.

Heat pump manufacturers, system designers, building and district heating operators, buyers and testing laboratories can use it. It is a voluntary standard, as the /T in the code indicates. It was approved by the Ministry of Industry and Information Technology, issued on 13 February 2026 and takes effect on 1 September 2026. It is a new standard.

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Document preview — JB/T 15555-2026

National Standard of the People's Republic of China

ICS: 27.200
Classification: J73

Issued by: Ministry of Industry and Information Technology

Foreword
1 Scope
2 Normative references
3 Terms and definitions

Foreword

JB/T 15555-2026 is a recommended industry standard of the People's Republic of China in the Machinery sector, approved and issued by the Ministry of Industry and Information Technology on 13 February 2026, with effect from 1 September 2026.

It is administered by the National Technical Committee for Refrigeration and Air Conditioning Equipment Standardization.

Classification: ICS 27.200; CCS J73.

1 Scope

Remaining clauses in the full document

2 Normative references
3 Terms and definitions

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 39 pages — is available in the English PDF.

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