Building Owner Newfoundworld Investment Holdings Limited
Replacement of more efficient chiller
Building/Project Name Citygate
Systems HVAC - Waterside Air Conditioning System
Building Types Commercial - Office
Commercial - Retail
Description of the building:
Citygate is a commercial complex in Tung Chung, comprising a premier outlet shopping mall, Citygate Outlets, together with a Grade-A office building, One Citygate. The total gross floor area of the development is approximate 62,800 sqm.




Retrofitted initiative:

HVAC Chiller Plant Upgrade - Chilled Water Side
  • Adoption of "Platinum rated CIC Green Product" - Low GWP HFO chillers.
  • Retro-commissioning approach.
  • Constant Speed and Variable Speed chillers combination design for enhanced energy optimisation. 


Observed benefits other than energy saving:

  • Optimised the chillers operation by enhanced chiller plant design with Constant speed chiller and Variable speed chiller.
  • Sustainability through adoption of Low GWP High energy efficiency HFO chillers.
  • Reduced noise generation in the plant room by chillers with exceptionally low sound level.
  • Reduced system downtime by chillers with superior reliability 


General observations of the retrofitting project:

  • The tenants were not affected by the HVAC system retrofit.
  • Disassembly of plant room equipment was minimised by well-planned project execution.
  • Successful application was achieved by combination of constant speed and variable frequency drive chillers.
  • A signature project which brings recognised rewards and excellent environmental benefits was accomplished.
  • It is estimated nearly 20% of annual energy consumption is saved, equivalent to around 1,000,000 kWh per year.
  • The payback is around 3 years for high efficiency chillers option. 


Other information:

Basement 1 Chiller Plant Room For Retail and Cinema                                                                          Basement 1 Chiller Plant Room for Office


Name of the consultant and contractor Saving
Trane Service Hong Kong Total savings/year: HKD 1,062,100
Payback: Around 3 years
Awards
Awards received by the project: The Association of Energy Engineers Award 2019
  • Final Platinum Rating - BEAM Plus Existing Building V2.0 (Comprehensive Scheme A)


Replacement of more efficient chiller
Building Owner Newfoundworld Investment Holdings Limited
Building/Project Name Citygate
Systems HVAC - Waterside Air Conditioning System
Building Types Commercial - Office
Commercial - Retail
Description of the building:

Citygate is a commercial complex in Tung Chung, comprising a premier outlet shopping mall, Citygate Outlets, together with a Grade-A office building, One Citygate. The total gross floor area of the development is approximate 62,800 sqm.


Retrofitted initiative:

HVAC Chiller Plant Upgrade - Chilled Water Side
  • Adoption of "Platinum rated CIC Green Product" - Low GWP HFO chillers.
  • Retro-commissioning approach.
  • Constant Speed and Variable Speed chillers combination design for enhanced energy optimisation. 

Observed benefits other than energy saving:

  • Optimised the chillers operation by enhanced chiller plant design with Constant speed chiller and Variable speed chiller.
  • Sustainability through adoption of Low GWP High energy efficiency HFO chillers.
  • Reduced noise generation in the plant room by chillers with exceptionally low sound level.
  • Reduced system downtime by chillers with superior reliability 

General observations of the retrofitting project:

  • The tenants were not affected by the HVAC system retrofit.
  • Disassembly of plant room equipment was minimised by well-planned project execution.
  • Successful application was achieved by combination of constant speed and variable frequency drive chillers.
  • A signature project which brings recognised rewards and excellent environmental benefits was accomplished.
  • It is estimated nearly 20% of annual energy consumption is saved, equivalent to around 1,000,000 kWh per year.
  • The payback is around 3 years for high efficiency chillers option. 

Other information:

Basement 1 Chiller Plant Room For Retail and Cinema                                                                          Basement 1 Chiller Plant Room for Office


Name of the consultant and contractor Saving
Trane Service Hong Kong Total savings/year: HKD 1,062,100
Payback: Around 3 years
Awards
Awards received by the project: The Association of Energy Engineers Award 2019
  • Final Platinum Rating - BEAM Plus Existing Building V2.0 (Comprehensive Scheme A)


Replacement of more efficient chiller

   


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