Full Text
REGD. No. D. L.-33004/99
The Gazette of India
CG-DL-E-31122025-268959
EXTRAORDINARY
PART II—Section 3—Sub-section (ii)
PUBLISHED BY AUTHORITY
No. 5770]
NEW DELHI, TUESDAY, DECEMBER 23, 2025/PAUSHA 2, 1947
MINISTRY OF POWER
NOTIFICATION
New Delhi, the 23rd December, 2025
S.O. 5968(E).—In exercise of the powers conferred by clause (a) of section 14 of the Energy Conservation
Act, 2001 (52 of 2001), the Central Government, in consultation with the Bureau of Energy Efficiency, hereby makes
the following amendments in the notification of the Government of India, Ministry of Power, published in the Gazette
of India, Extraordinary, Part II, Section 3, Sub-section (ii), vide number S.O. 4088(E), dated the 18th September, 2023,
namely:-
1. In the said notification, in paragraph 1 - for the opening paragraph, the following shall be substituted, namely: –
"(a). Every liquid chilling packages (chillers) of all types and sizes of the vapour compression type covered under
the scope of IS 16590 with all amendments used for space cooling with rated voltage up to and including 250 V, 50
Hz AC, for single phase and up to and including 415V, 50Hz AC for three phase power supply being manufactured
or imported in India shall display particulars on labels in accordance with the provisions of the said Act or the
regulations made thereunder, shall,-".
(b) in clause (a), for the figures '16950', the figures '16590' shall be substituted.
(c) for clause (c), the following shall be substituted, namely:-
"(c) Meet the prequalification criteria wherein every model shall achieve Indian Seasonal Energy Efficiency
Ratio as provided in paragraph 3 of these regulations".
2. In paragraph 2, sub-paragraph (1), clause(d) shall be omitted.
3. (a) In paragraph 4, sub- paragraph (4), for the figures "16950", the figures '16590' shall be substituted.
(b) In sub-paragraph (5), for clause (1), the following shall be substituted, namely:-
"(1) The tolerances for Cooling Capacity (full load and part load) and Indian Seasonal Energy Efficiency Ratio shall
be as per IS 16590 with all amendments".
(c) for clause (2), for the figures '16950', the figures '16590' shall be substituted.
4. for paragraph 3,- the following shall be substituted, namely:-
"(1) To become eligible for star rating, every chiller shall meet the Indian Seasonal Energy Efficiency Ratio as
provided in Table 3 and Table 4, as amended from time to time, for water cooled and air-cooled condenser
chiller category respectively."
(2) The label to be affixed on each chiller shall display a maximum of five stars with an interval of one
star, and the chiller shall be rated for its performance from star one to star five based on Indian seasonal energy
efficiency ratio value.
(3) The chillers having water cooled or air-cooled condenser shall meet the requirement of Indian
Seasonal Energy Efficiency Ratio as per the Tables 3,3.1, 4, and 4.1 with all amendments, as applicable. The
star level chosen for the models shall be based on minimum limits of their Indian Seasonal Energy Efficiency
Ratio of each star level as shown in tables below:
"Table 3
Star Rating levels for water cooled chiller
Table Validity Period
1st January, 2024 to 30th June, 2026
+---------------------+-------------------------------------------------+
| kW of cooling | ISEER |
+---------------------+---------+---------+---------+---------+---------+
| | 1 Star | 2 Star | 3 Star | 4 Star | 5 Star |
+---------------------+---------+---------+---------+---------+---------+
| <260 | 4.80 | 5.20 | 5.60 | 6.10 | 6.60 |
| >=260 & <530 | 5.00 | 5.60 | 6.20 | 6.80 | 7.40 |
| >= 530 & <1050 | 5.50 | 6.10 | 6.70 | 7.40 | 8.20 |
| >= 1050 & <1580 | 5.80 | 6.50 | 7.20 | 7.90 | 8.70 |
| >=1580 | 6.00 | 6.70 | 7.40 | 8.20 | 9.00 |
+---------------------+---------+---------+---------+---------+---------+
Table 3.1
Star Rating levels for water cooled chiller
Table Validity Period
1st July, 2026 to 31st December, 2029
+---------------------+-------------------------------------------------+
| kW of cooling | ISEER |
+---------------------+---------+---------+---------+---------+---------+
| | 1 Star | 2 Star | 3 Star | 4 Star | 5 Star |
+---------------------+---------+---------+---------+---------+---------+
| <260 | 4.80 | 5.20 | 5.60 | 6.10 | 6.60 |
| >=260 & <530 | 5.00 | 5.60 | 6.20 | 6.80 | 7.40 |
| >= 530 & < 1050 | 5.50 | 6.10 | 6.70 | 7.40 | 8.20 |
| >= 1050 & <1580 | 5.80 | 6.50 | 7.20 | 7.90 | 8.70 |
| >=1580 | 6.00 | 6.70 | 7.40 | 8.20 | 9.00 |
+---------------------+---------+---------+---------+---------+---------+
Table 4
Star Rating levels for air cooled chiller
Table Validity Period
1st January, 2024 to 30th June, 2026
+---------------------+-------------------------------------------------+
| kW of cooling | ISEER |
+---------------------+---------+---------+---------+---------+---------+
| | 1 Star | 2 Star | 3 Star | 4 Star | 5 Star |
+---------------------+---------+---------+---------+---------+---------+
| <260 | 3.00 | 3.30 | 3.60 | 4.00 | 4.40 |
| >=260 | 3.10 | 3.50 | 3.90 | 4.30 | 4.70 |
+---------------------+---------+---------+---------+---------+---------+
Table 4.1
Star Rating levels for air cooled chiller
Table Validity Period
1st July, 2026 to 31st December, 2029
+---------------------+-------------------------------------------------+
| kW of cooling | ISEER |
+---------------------+---------+---------+---------+---------+---------+
| | 1 Star | 2 Star | 3 Star | 4 Star | 5 Star |
+---------------------+---------+---------+---------+---------+---------+
| <260 | 3.00 | 3.30 | 3.60 | 4.00 | 4.40 |
| >=260 | 3.10 | 3.50 | 3.90 | 4.30 | 4.70 |
+---------------------+---------+---------+---------+---------+---------+
(4) The permission for display of particulars on chillers for 1 Star specified in Table 3.1 and Table 4.1
shall not be granted from the 1st July, 2026 with a view to upgrade the minimum energy performance level of
chillers"
[F. No. 10/11/2022-EC]
DHIRAJ KUMAR SRIVASTAVA, Chief Engineer
NOTIFICATION
New Delhi, the 23rd December, 2025
S.O. 5969(E).—In exercise of the powers conferred by clause (b) and clause (d) of section 14 of the Energy
Conservation Act, 2001 (52 of 2001) and in supersession of the notification of the Government of India in the Ministry
of Power, published in the Gazette of India, Extraordinary, Part II, Section 3, Sub-section (ii), vide number S.O. 4089(E),
dated the 18th September, 2023, except as respects things done or omitted to be done before such supersession, the
Central Government in consultation with the Bureau of Energy Efficiency, hereby specifies the Chillers of vapour
compression type being used for space cooling with rated voltage up to and including 250 V, 50 Hz AC, for single phase
and up to and including 415V, 50Hz AC for three phase power supply and direct that any such chillers being
manufactured or imported for sale in India shall display particulars on labels in accordance with the provisions of the
said Act or the regulations made thereunder.
[F. No. 10/11/2022-EC]
DHIRAJ KUMAR SRIVASTAVA, Chief Engineer