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Finned heat exchange units for room air conditioners

BIS QCO APPLICABLE · ISI MARK SCHEME · IS 11329

HSN 8419 50 19 (finned heat exchange units for room air conditioners) is covered by a Bureau of Indian Standards Quality Control Order. Conformity to IS 11329:2018 is mandatory under the ISI Mark Scheme with effect from 01 October 2023, by virtue of the Air Conditioner and its Related Parts Hermetic Compressor and Temperature Sensing Controls (Quality Control) Amendment Order, 2025. No separate customs-clearance overlay applies beyond the BIS QCO obligation.

What this is

HSN code

8419 50 19

Chapter

84 · Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

BIS QCO

Applicable · ISI Mark Scheme · CM/L required

Indian Standard

IS 11329:2018 · effective 01-10-2023

Applicable Partner Government Agencies

BISBIS·Bureau of Indian Standards

Compliance steps

1
Source only from a Bureau of Indian Standards CM/L-licensed manufacturer holding a current licence against IS 11329:2018 for finned heat exchange units. Verify the supplier's CM/L number, licensed product scope, and manufacturing facility address on the BIS online register before placing the purchase order.
IS 11329:2018 · Air Conditioner and its Related Parts Hermetic Compressor and Temperature Sensing Controls (Quality Control) Amendment Order, 2025 · S.O. 4354(E) dated 05-12-2019
2
Ensure each heat exchange unit bears the ISI standard mark and the supplier's CM/L licence number under Scheme-I of Schedule-II to the BIS (Conformity Assessment) Regulations, 2018. The mark must appear on the product itself, not solely on packaging or documentation.
Scheme-I of Schedule-II to the BIS (Conformity Assessment) Regulations, 2018 · S.O. 4354(E)
3
Check whether the consignment qualifies for any exemption listed in paragraph 2 of the controlling Quality Control Order as amended. The exemption chain runs through S.O. 4354(E), S.O. 1518(E), S.O. 4671(E), S.O. 5095(E), S.O. 5972(E), S.O. 32(E), S.O. 695, and S.O. 1815(E); confirm which version is current at the time of import.
S.O. 4354(E) dated 05-12-2019 · S.O. 1518(E) dated 18-05-2020 · S.O. 4671(E) dated 22-12-2020 · S.O. 5095(E) dated 08-12-2021 · S.O. 5972(E) dated 21-12-2022 · S.O. 32(E) dated 02-01-2024 · S.O. 695 dated 11-02-2025 · S.O. 1815(E) dated 17-04-2025
4
Quote the supplier's BIS CM/L number on the bill of entry and ensure the accompanying invoice and packing list identify the product as a finned heat exchange unit for room air conditioners conforming to IS 11329:2018. Customs verifies the CM/L in real time against the BIS register; an absent, expired, or scope-mismatched licence triggers consignment detention.
BIS Act, 2016 · Customs Act, 1962 · S.O. 4354(E)

A word of counsel

The single most common error on this tariff line is importing heat exchange units under a CM/L licence whose scope covers a different heat exchanger configuration — for instance, a licence against IS 11329:2018 for shell-and-tube or brazed-plate configurations that does not extend to finned coil units for room air conditioner duty. IS 11329 covers multiple construction types, but the CM/L is scope-specific: a licence referencing one configuration does not authorise import of a different type, and customs detention follows on a scope mismatch at port.

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Frequently asked

Does HSN 8419 50 19 require BIS certification?

Yes. Finned heat exchange units for room air conditioners must conform to IS 11329:2018 under the ISI Mark Scheme with effect from 01 October 2023; import is permitted only from manufacturers holding a current BIS CM/L licence covering the relevant product type and manufacturing facility.

Are there exemptions from the IS 11329:2018 QCO requirement for this HSN?

Yes, exemptions are listed in paragraph 2 of the controlling Quality Control Order and its successive amendments — S.O. 4354(E) through S.O. 1815(E) dated 17-04-2025. The importer must verify which amendment is in force at the time of import and document the applicable exemption basis on the bill of entry.

Does IS 11329:2018 cover all types of heat exchangers, or only finned types for air conditioners?

IS 11329 addresses multiple heat exchanger configurations including shell-and-tube, plate, spiral, and brazed-plate types, but the QCO obligation as recorded for HSN 8419 50 19 is specifically anchored on finned heat exchange units for room air conditioners. Importers of other configurations must verify separately whether a QCO applies to their specific type.

Does a single CM/L licence cover all finned heat exchanger variants from the same manufacturing plant?

No. A CM/L licence is scope-specific by product type, specification, and manufacturing facility; variants outside the licensed scope or produced at an unlicensed plant are not covered and attract detention on a CM/L scope mismatch.

Last verified against gazette notifications: 2026-05-18. Source: BIS / Indian Customs CUSDATA.