Unitary air conditioners are a type of air conditioning system designed to provide cooling, heating, ventilation, and more. They are commonly installed in residential, commercial, and industrial settings to maintain comfortable indoor environments. With features such as temperature adjustment, mode selection, and easy installation, they remain in high demand.

To ensure the product quality of unitary air conditioners, the Bureau of Indian Standards (BIS) has made it mandatory for manufacturers to undergo BIS registration and obtain the BIS ISI mark before selling it in the market. Manufacturers can use the ISI Mark on their products only after obtaining a license from BIS that is granted after BIS registration. The presence of the ISI mark on a product indicates that it complies with BIS's stringent quality standards.

IS 1391 (Part 1): 2017 covers room air conditioners-unitary air conditioners. This standard specifies the design and performance requirements for unitary air conditioners. This standard also specifies the test conditions and procedures for determining various performance characteristics of unitary air conditioners that operate non frosting when cooling and dehumidifying at standard rating settings. This standard covers unitary air conditioners that can also function as heaters through the use of a heat pump or an electric heater.

Unitary air conditioners are classified based on their function and nominal cooling capacity.

1.     Classification based on Function

·       Cooling and Dehumidification

·       Cooling and Heating by Heat Pump

·       Cooling and Heating by Electric Heater

2.     The nominal cooling capacity of unitary air conditioners should be classified as follows: 1500, 2250, 3000, 3750, 4500, 6000, 7500 and 9000 kcal/h. 

REQUIREMENTS FOR IS 1391 (PART 1): 2017

1.     The manufacturer must ensure that the product meets the standard's general, construction, and performance requirements.

2.     The air conditioner and its components must be built with enough strength and rigidity to withstand regular handling, transit, and operation conditions.

3.     There shall be no sharp edges or corners that could cause injury under normal usage conditions and all moving elements that could cause an accident shall be effectively guarded. Parts that need to be serviced regularly must be easily accessible.

4.     Materials used in the construction of cabinets, front panels, and so on must comply with the equivalent Indian Standards wherever applicable unless modified by this standard.

5.     The material shall be free from defects that are likely to cause undue deterioration or failure.

6.     Labelling and marking shall be done in accordance with IS 1391 (Part 1): 2017.

7.     Conforming to the requirements of IS 1391( Part 1):2017, the product may be certified under the terms of the Bureau of Indian Standards Act, 2016 and the Rules and Regulations formulated there under, and the product may be marked with the Standard Mark (ISI Mark).

TEST REQUIREMENTS OF IS 1391 (PART 1): 2017

The following test shall be carried out for unitary air conditioners.

·       Pressure test

·       High Voltage Test

·       Leakage Current Test

·       Earth Resistance test

·       Cooling Capacity test

·       Power factor test

·       Freeze up test

·       Maximum Heating Performance Test

·       Sound test

·       Power consumption test

Process for BIS ISI Mark Certification

To know the process in detail, please visit:

• ISI Mark Certification for Domestic Manufactures
• ISI Mark Certification for Foreign Manufactures

Under BIS Registration Products ISI and CRS

• BIS CRS Registration For IT Products List
• ISI Mark Registration For ISI Products List

CONCLUSION

Unitary air conditioners have been included in the mandatory ISI Certification Scheme under the IS 1391 (Part 1): 2017 standard. This product cannot be exported, imported, or sold in the Indian consumer market without the ISI Mark imprinted.

If you need any assistance with BIS ISI registration for unitary air conditioners or ISI mark certification for unitary air conditioners, you can reach out to Evtlindia. We provide assistance with all documentation formalities with India's BIS office, ensuring a smooth and hassle-free registration experience, guiding you through the entire process from start to finish.

You can contact us via email at contact@evtlindia.com or by phone at 9560935898. Feel free to get in touch with us anytime for the support you need.