HVAC Requirements for ECBC compliance
HVAC System: The equipment, distribution systems, and terminals that provide, either collectively or individually, the processes of heating, ventilating, or air conditioning to a building or portion of a building.
Following are Space conditioning types as per Energy Conservation Building Code (ECBC):
- Chillers
- Split/Packaged Air conditioners
- Variable refrigerant flow
- Air Conditioning and Condensing Units Serving Computer Rooms
(a) Chillers shall meet or exceed the minimum efficiency requirements presented in Table 5-1 through Table 5-2 under ANSI/ AHRI 550/ 590 conditions.
(b) The application of air-cooled chiller is allowed in all buildings with cooling load less than 530 kW. For buildings with cooling load equal to or greater than 530 kW, the number of air-cooled chiller shall be restricted to 33% of the total installed chilled water capacity unless the authority having jurisdiction mandates the application of air cooled chillers.
(c) Minimum efficiency requirements under BEE Standards and Labeling Program for chillers shall take precedence over the minimum requirements presented in Table 5-1 through Table 5-2.
(d) To show compliance to ECBC, minimum requirement of both COP and IPLV requirement of ECBC Building shall be met. To show compliance with ECBC+ Building and SuperECBC Building, minimum requirement of either COP or IPLV of respective efficiency level shall be met.
Minimum Energy Efficiency Requirements for water cooled Chillers
Minimum Energy Efficiency Requirements for air cooled Chillers
2. Split/ Packaged Conditioners
Unitary air-conditioners shall meet or exceed the efficiency requirements given in Table 5-3 through Table 5-5 from ECBC 2017. Window and split air conditioners shall be certified under BEE’s Star Labeling Program. EER shall be as per IS 8148 for all unitary, split, packaged air conditioners greater than 10 kWr.
Minimum Requirements for Unitary, Split, Packaged Air Conditioners in ECBC Building
Minimum Requirements for Unitary, Split, Packaged Air Conditioners in ECBC+ Building
Minimum Requirements for Unitary, Split, Packaged Air Conditioners in SuperECBC Building
3. Variable refrigerant flow (VRF)
Variable Refrigerant Flow (VRF) systems shall meet or exceed the efficiency requirements specified in Table 5-6 as per the ANSI/AHRI Standard 1230 while the Indian Standard on VRF is being developed. BEE Standards and Labeling requirements for VRF shall take precedence over the current minimum requirement.
Minimum Efficiency Requirements for VRF Air conditioners for ECBC Building*
4. Air Conditioning and condensing units serving Computer rooms
Air conditioning and condensing units serving computer rooms shall meet or exceed the energy efficiency requirements listed in Table 5-7 in ECBC 2017.
Minimum Efficiency Requirements for Computer Room Air Conditioners