BIS Certification for Desert Coolers | IS 3315

BIS Certification for Evaporative Air Coolers (Desert Coolers) | IS 3315:2024 – Qualitance India

BIS Certification for Evaporative Air Coolers (Desert Coolers)

Evaporative air coolers, commonly known as desert coolers, are widely used in residential, commercial and industrial environments. Manufacturers supplying these products in India must consider applicable product safety, performance and regulatory compliance requirements before manufacturing, importing or selling their products. The Bureau of Indian Standards (BIS) has established requirements for evaporative air coolers under the IS 3315 series. However, an important standards update affects manufacturers using the older reference IS 3315:2019. The standard has been revised to IS 3315:2024 — Direct Evaporative Air Cooler — Specification (Fourth Revision). BIS has also issued Amendment No. 1 to the 2024 standard, with an implementation deadline of 15 July 2026. The amendment deadline has passed, so manufacturers preparing a new application should use the applicable 2024 standard together with its amendment and the latest product manual. <Cite refs={["turn319070search28","turn319070search29","turn192889view1"]}/> Evaporative air coolers are covered by the Air Cooler and Air Filters Quality Control Order. Manufacturers should therefore verify their certification obligations, applicable exemptions and current BIS licensing requirements before launching or expanding their product range. Qualitance India provides consultancy support for BIS ISI Mark certification, product testing coordination, documentation, factory-readiness assessment and regulatory compliance.

1. What Is IS 3315?

IS 3315 is the Indian Standard for evaporative air coolers. The 2019 edition was titled Evaporative Air Coolers (Desert Coolers) — Specification, while the revised 2024 edition is titled Direct Evaporative Air Cooler — Specification. <Cite refs={["turn319070search5","turn192889view1"]}/> The standard addresses important product characteristics such as construction, air delivery, cooling performance, energy efficiency and electrical safety. The applicable requirements are intended to help manufacturers demonstrate that their products meet the prescribed performance and safety criteria.

Why the latest standard matters

Manufacturers should not assume that a test report, product manual or licence application prepared exclusively against IS 3315:2019 will automatically meet the current requirements. The 2024 edition introduced revised technical provisions, and Amendment No. 1 further clarified the scope and added requirements relating to motors, switches and electronic controllers. <Cite refs={["turn192889view2","turn192889view1"]}/> For new applications, confirm the current edition, amendment status, product manual and applicable BIS instructions before preparing samples or submitting documentation.

2. Product Scope: Which Air Coolers Are Covered?

The standard is relevant to direct evaporative air coolers, including products commonly sold as desert coolers. These products generally use water evaporation to cool air circulated through the unit. Depending on the design, the cooler may use a fan or blower, a water pump, cooling media, a water sump and electrical controls.

Common product configurations

Manufacturers may offer different varieties based on:

Metallic or non-metallic enclosure.
Fan-type or blower-type airflow.
Air delivery capacity.
Power input.
Cooling efficiency.
Energy Efficiency Ratio (EER).

The BIS product manual identifies these parameters for classifying models into varieties for certification. <Cite refs={["turn192889view1"]}/>

Products specifically excluded from the revised standard

Amendment No. 1 to IS 3315:2024 clarifies that DC motor air coolers and solar-powered air coolers are outside the scope of the standard. Manufacturers of these products should not assume that the ordinary IS 3315 certification route applies without a separate assessment of the applicable requirements. <Cite refs={["turn192889view2"]}/> Where a product has a specialised configuration, unusual power supply or different operating principle, the manufacturer should confirm the correct standard and regulatory route with BIS.

3. Is BIS Certification Mandatory for Desert Coolers in India?

Yes. BIS certification is compulsory for evaporative air coolers covered by the applicable Air Cooler and Air Filters Quality Control Order, subject to the order's exemptions and subsequent amendments. The Ministry of Commerce and Industry issued the Air Cooler and Air Filters (Quality Control) Order, 2023, through S.O. 1114(E), dated 5 March 2024. The government subsequently issued the Air Cooler and Air Filters (Quality Control) Order, 2025, through S.O. 529(E), dated 30 January 2025, superseding the 2023 order. <Cite refs={["turn319070search9","turn867675search0"]}/> The QCO framework requires covered air coolers to conform to the applicable Indian Standard and bear the BIS Standard Mark under a licence granted according to Scheme-I of the BIS Conformity Assessment Regulations, 2018. <Cite refs={["turn867675search0","turn319070search0"]}/>

What manufacturers need to know

A valid BIS licence is required for products within the compulsory certification scope, unless a specific exemption applies.
Product testing and factory assessment must follow the applicable BIS procedure.
The product must comply with the current applicable standard and amendments.
The Standard Mark must be used only as authorised under the licence.
Manufacturers should review all applicable QCO amendments, transition provisions and exemptions before relying on an exception.

MSME and other exemptions

The 2025 QCO contains provisions concerning implementation dates for small and micro enterprises, domestically manufactured goods intended for export, certain very small Udyam-registered enterprises meeting specified financial limits, and limited imports for research and development. It also contains a transitional provision concerning specified existing stock. <Cite refs={["turn867675search0"]}/> The precise eligibility conditions and any later amendments must be checked before relying on an exemption. MSME status alone should not be assumed to provide a blanket exemption from every BIS requirement. BIS maintains an official list of products under compulsory certification and the relevant QCOs. Manufacturers should check the current listing and notifications before filing an application. <Cite refs={["turn319070search2","turn319070search0"]}/>

4. Key Requirements Under IS 3315:2024

The applicable standard covers several aspects of air cooler construction and performance. The following areas are particularly relevant during certification preparation.

Construction and materials

The cooler's enclosure, internal components and construction must meet the applicable requirements. The manufacturer should document the materials used and ensure that components conform to their relevant specifications.

Air delivery

Air delivery measures the quantity of air circulated by the cooler under the specified test conditions. The product's declared air delivery must be supported by testing according to the applicable standard.

Cooling efficiency

Cooling performance must be assessed using the prescribed test method and conditions. The manufacturer should ensure that declared performance figures are supported by the appropriate test results.

Energy efficiency

The 2024 standard includes requirements relating to the Energy Efficiency Ratio (EER). Amendment No. 1 added a definition of EER and revised related technical provisions. <Cite refs={["turn192889view2"]}/>

Power consumption

Electrical input and power consumption are among the product characteristics covered by the applicable performance requirements.

Noise

The product manual identifies sound testing among the testing requirements for the cooler. The relevant test conditions and acceptance criteria should be taken from the current standard. <Cite refs={["turn192889view1"]}/>

Electrical safety

Electrical safety requirements include protection against electric shock, leakage current, electric strength and earthing, as applicable. The BIS product manual identifies corresponding tests by reference to IS 302 (Part 1). <Cite refs={["turn192889view1"]}/> Manufacturers should use the actual standard and applicable amendments to establish the complete testing and acceptance criteria rather than relying on this summary alone.

5. Latest Amendment to IS 3315:2024

BIS issued implementation guidelines for Amendment No. 1 to IS 3315:2024 on 23 April 2026. The specified last date for implementation was 15 July 2026. <Cite refs={["turn192889view2"]}/> The amendment includes the following changes:

Clarification that DC motor air coolers and solar-powered air coolers are outside the standard's scope.
Addition of a definition for Energy Efficiency Ratio (EER).
Provision for capacitor-type induction motors and BLDC motors as alternatives to the previously specified fan motors, with relevant requirements.
Requirements for manual-operated switches that are not covered by IS 3854.
Requirements for electronic controllers, where used.
Editorial corrections to the test-chamber setup figures.
Addition of an annex giving example calculations for test and rated conditions. <Cite refs={["turn192889view2"]}/>

BIS also revised the product manual to PM/IS 3315/3/April 2026, including changes to the Scheme of Inspection and Testing. <Cite refs={["turn192889view2"]}/> For existing licensees, the implementation guidelines state that the amendment does not require changes to manufacturing or testing facilities solely for implementation. However, manufacturers using the newly permitted alternative motors or electronic controllers must ensure compliance with the relevant provisions and submit compliance information to BIS as required. <Cite refs={["turn192889view2"]}/>

6. BIS Product Manual and Sample Requirements

The BIS product manual for IS 3315:2024 provides guidance on sampling, grouping, test equipment, inspection and testing, and licence scope. The October 2024 manual specifies a sample size of one complete air cooler for the certification process. Because BIS subsequently revised the product manual in April 2026, applicants should confirm the current sampling instructions before arranging submission. <Cite refs={["turn192889view1","turn192889view2"]}/>

Product grouping for certification

The October 2024 manual identifies the following parameters for grouping models into varieties: <Cite refs={["turn192889view1"]}/>

Parameter	Classification or information required
Enclosure material	Metallic or non-metallic
Airflow type	Blower type or fan type
Air delivery	Declared airflow in m³/h
Power input	Declared input in watts
Cooling efficiency	Declared cooling-efficiency value
Energy Efficiency Ratio	Declared EER

Each model should have a unique model name or number. Models with the same values for the specified grouping parameters may be treated as one variety, subject to the applicable manual and BIS assessment. Each variety must be tested for the requirements specified for certification. Model numbers and technical parameters intended for inclusion in the licence scope must be declared to BIS. <Cite refs={["turn192889view1"]}/>

Adding new models to an existing licence

The product manual explains how licensees declare additional models and provide the relevant technical parameters through the BIS Manakonline communication window. The manufacturer must ensure that the added model genuinely falls within the existing licence scope. <Cite refs={["turn192889view1"]}/> A new model should not be treated as automatically covered merely because it belongs to the same product family or has a similar appearance.

7. Testing Equipment and Laboratory Requirements

The BIS product manual contains an indicative list of major testing equipment needed for assessing conformity with IS 3315:2024. The list is not exhaustive. <Cite refs={["turn192889view1"]}/>

Indicative equipment

Test or inspection	Equipment identified in the product manual
Dimensions	Vernier caliper or micrometer
Sump tank capacity	Calibrated beaker
Sound test	Decibel meter test setup or anechoic chamber
Drop test	Test setup as specified in the standard
Protection against electric shock	Applicable probes, measuring instruments and test apparatus
Leakage current and electric strength	Insulation-resistance meter, microammeter, high-voltage tester and stopwatch
Earthing	Applicable electrical test instruments
Cooling efficiency	Pressure gauges, dry-bulb and wet-bulb thermometers, hygrometer and airflow/temperature measurement apparatus
Air delivery	Airflow and temperature measurement apparatus
EER and power consumption	Relevant airflow, temperature and electrical measurement instruments

The final equipment list should be taken from the current product manual, applicable standard and Scheme of Inspection and Testing. <Cite refs={["turn192889view1","turn192889view2"]}/>

Laboratory readiness

Before applying, the manufacturer should assess whether the available testing arrangements are adequate for the product scope. The assessment should cover:

Suitability and range of testing instruments.
Calibration and maintenance records.
Test procedures and reporting formats.
Competency of personnel carrying out the tests.
Recording and traceability of test results.
Availability of the prescribed test setups.
Procedures for identifying and managing non-conforming products.

The precise requirements for in-house testing, external testing and calibration must be confirmed from the current BIS instructions. Do not assume that every test can be outsourced or that a general-purpose laboratory is sufficient.

8. Raw Materials and Components

The product manual identifies important electrical components and their associated Indian Standards, including: <Cite refs={["turn192889view1"]}/>

Supply cords conforming to IS 694 or IS 9968 (Part 1), as applicable.
Switches conforming to IS 3854 or the applicable requirements of IS 3315.
Fan motors conforming to IS 996, subject to the applicable amendment and permitted alternatives.
Pump sets conforming to IS 11951.

Amendment No. 1 also provides for specified alternative motor types and includes requirements for electronic controllers, where used. <Cite refs={["turn192889view2"]}/> Manufacturers should maintain suitable supplier documentation and verify component conformity against the relevant requirements. Where a component is itself covered by mandatory BIS certification, the manufacturer should confirm the applicable licence and marking requirements before procurement.

9. Documents Required for BIS Certification of Desert Coolers

The following is a practical starting checklist. The exact application documents must be confirmed against the current BIS process and product manual.

Company and factory documents

Company registration or constitution documents.
Factory address proof and applicable business registrations.
Details of the authorised signatory.
Factory layout and manufacturing process flow chart.
Details of production machinery and manufacturing capacity.
Organisation details for manufacturing and quality control.

Product and technical documents

Product catalogue and proposed model list.
Model numbers and technical specifications.
Enclosure material details.
Airflow type and declared air delivery.
Power input and cooling-efficiency data.
EER details, as applicable.
Electrical circuit diagrams and relevant component specifications.
Product drawings and other technical information required by BIS.

Raw-material and component documents

Supplier details and material specifications.
Applicable component test certificates.
Relevant BIS licence details for components covered by mandatory certification.
Motor, switch, pump and supply-cord specifications.
Details of electronic controllers, where used.

Testing and quality-control documents

List of test equipment.
Calibration and maintenance records.
In-house testing procedures and formats.
Inspection and testing plan.
Raw-material inspection records.
Finished-product inspection and test reports.
Procedures for handling non-conforming products.
Batch identification and traceability records.

Application-related documents

Applicable BIS application forms and declarations.
Proposed licence scope and model list.
Testing arrangements and sample details.
Applicable fee-payment documents.
Additional information requested by the BIS branch office.

This is an indicative checklist, not an exhaustive statutory list. The final requirements depend on the current application procedure, product scope and factory arrangements.

10. Step-by-Step BIS Certification Process for Evaporative Air Coolers

Step 1: Confirm the applicable standard

Verify that the product falls within the scope of IS 3315:2024 and review Amendment No. 1. Confirm that the product is not excluded from the standard's scope.

Step 2: Review the QCO and exemptions

Check the current Air Cooler and Air Filters QCO, including amendments, transition provisions and any applicable exemption.

Step 3: Finalise the product range

Prepare a model-wise list with the required technical parameters. Identify the varieties to be covered by the licence.

Step 4: Conduct a factory-readiness assessment

Review manufacturing facilities, component controls, laboratory arrangements, testing equipment and quality-control records.

Step 5: Prepare the application

Compile the technical documents, company information, proposed scope, testing information and other documents required by BIS.

Step 6: Arrange sample testing

Prepare the sample according to the current product manual. Ensure that the relevant tests are carried out using the applicable standard and amendment.

Step 7: Factory inspection and assessment

BIS assesses the manufacturing and quality-control arrangements under the applicable procedure. The manufacturer should be ready to demonstrate production capability and conformity controls.

Step 8: Resolve observations

Address technical queries, documentation gaps and any non-conformities identified during inspection or testing.

Step 9: Obtain the licence

Once BIS is satisfied that the applicable requirements are fulfilled, the licence may be granted under the applicable procedure.

Step 10: Mark products and maintain compliance

Use the Standard Mark only within the authorised scope. Maintain inspection and testing records, calibration, model information and other records required during the licence's operation. Certification is subject to BIS assessment and approval. Filing an application or submitting a sample does not itself authorise use of the ISI Mark.

11. BIS Certification Fees and Testing Charges

The total cost of BIS certification for desert coolers depends on the current government fee schedule, product scope, testing arrangements and the condition of the manufacturer's factory. Potential cost components include:

BIS application and licence-related fees.
Marking fees under the applicable fee schedule.
Product testing charges.
Inspection-related charges.
Sample preparation and transportation.
Laboratory equipment and calibration, where needed.
Factory improvements and documentation preparation.
Consultancy fees, if a manufacturer engages a consultant.

BIS's Laboratory Information Management System lists testing facilities and charges for IS 3315:2024 at individual laboratories. The displayed charge depends on the laboratory and its applicable scope, and should be confirmed directly before planning the test budget. <Cite refs={["turn319070search8"]}/> Government fees, laboratory charges and consultancy fees are separate. Qualitance India consultancy fees are project-specific and are not official BIS fees. A reliable quotation should be prepared after reviewing the product models, applicable standard, factory readiness and current fee schedule. Do not assume that a single fee or timeline applies to every manufacturer.

12. Common Mistakes to Avoid

Applying against IS 3315:2019 without checking the revision

The standard has been revised to IS 3315:2024. The current amendment and product manual must be considered. <Cite refs={["turn319070search5","turn192889view2"]}/>

Ignoring Amendment No. 1

The amendment clarifies exclusions and introduces provisions for alternative motors, switches and electronic controllers. These requirements must be reviewed for the actual product design. <Cite refs={["turn192889view2"]}/>

Submitting an incomplete model list

Every model intended for inclusion in the licence scope should be identified with its relevant technical parameters.

Treating all coolers as one variety

Different enclosure materials, airflow types, air delivery, power input, cooling efficiency and EER values may affect model grouping. <Cite refs={["turn192889view1"]}/>

Ignoring component conformity

The manufacturer should check applicable requirements for electrical components and maintain relevant supplier and conformity records.

Purchasing testing equipment without checking the current manual

The required equipment should be established from the current product manual and actual test scope. The older equipment list should not be treated as exhaustive.

Using the ISI Mark before licence grant

The Standard Mark must be used only as authorised by BIS under a valid licence.

Frequently Asked Questions (FAQs)

1. What is the applicable standard for desert coolers?

The current revised standard is IS 3315:2024, titled Direct Evaporative Air Cooler — Specification (Fourth Revision). It supersedes the 2019 edition. Amendment No. 1 must also be considered. <Cite refs={["turn319070search5","turn192889view2"]}/>

2. Is BIS certification mandatory for evaporative air coolers?

Yes. Evaporative air coolers covered by the Air Cooler and Air Filters Quality Control Order must conform to the applicable Indian Standard and bear the BIS Standard Mark under a valid licence, subject to applicable exemptions. <Cite refs={["turn867675search0","turn319070search0"]}/>

3. What is the sample size for BIS testing?

The October 2024 BIS product manual specifies one complete air cooler. Applicants should confirm the current sampling instructions against the revised April 2026 product manual before submission. <Cite refs={["turn192889view1","turn192889view2"]}/>

4. Which models should be included in the application?

The applicant should declare the model numbers and technical parameters used for grouping, including enclosure material, airflow type, air delivery, power input, cooling efficiency and EER. <Cite refs={["turn192889view1"]}/>

5. Are DC motor and solar-powered air coolers covered by IS 3315:2024?

Amendment No. 1 clarifies that DC motor air coolers and solar-powered air coolers are outside the scope of IS 3315:2024. The applicable compliance route should be assessed separately for these products. <Cite refs={["turn192889view2"]}/>

6. What testing equipment is required?

The product manual identifies equipment for dimensional checks, sump capacity, sound, drop testing, electrical safety, cooling efficiency, air delivery, EER and power consumption. The exact equipment requirements must be confirmed from the current manual and applicable standard. <Cite refs={["turn192889view1","turn192889view2"]}/>

7. Can different models be covered under one BIS licence?

Different models may be included according to the grouping rules and their declared technical parameters. The proposed scope and testing requirements should be reviewed before the application is finalised.

8. What is the cost of BIS certification for desert coolers?

The total cost depends on the current BIS fees, testing charges, inspection requirements, model scope and factory readiness. Obtain a project-specific estimate after reviewing the product and manufacturing setup.

9. How long does BIS certification take?

The timeline depends on documentation readiness, testing, factory assessment, resolution of observations and the current BIS procedure. A completion date should not be promised before the project has been assessed.

10. Can Qualitance India help with BIS certification?

Yes. Qualitance India can assist with standard applicability review, QCO assessment, documentation, model grouping, factory-readiness assessment, testing coordination and application support.

Conclusion: Get BIS Certification Consultancy for Desert Coolers

Manufacturers of evaporative air coolers should review the latest applicable standard, QCO requirements and BIS product manual before applying for certification. Since IS 3315:2019 has been superseded by IS 3315:2024 and Amendment No. 1 has an implementation deadline that has passed, manufacturers should prepare their applications against the current requirements. Proper model grouping, component conformity, laboratory readiness and testing documentation can help identify compliance gaps before formal assessment. Qualitance India supports manufacturers with BIS product certification and regulatory compliance projects, including standard applicability review, documentation, testing coordination and factory-readiness assistance.

BIS Certification Consultancy by Qualitance India

Qualitance India – Improving Quality & Competence Our services include:

BIS ISI Mark Certification Consultancy.
BIS Product Certification and QCO Applicability Review.
Factory-Readiness Assessment.
Product Testing Coordination.
Documentation and Quality-Control Support.
Laboratory Setup Consultancy.
Regulatory Compliance Consultancy.

Contact Qualitance India Call / WhatsApp: +91 93106 15170 Email: info@qualitanceindia.com Website: https://qualitanceindia.com Contact Qualitance India to discuss BIS certification requirements for evaporative air coolers and obtain a project-specific compliance assessment.

Official References and Useful Links

Before submitting an application, confirm the latest product manual, QCO amendments, exemptions, fees and application procedure with BIS.