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CHILLER vs. ROOFTOP DX
Carrier provides a wide range of HVAC system solutions for your building projects and tools to help you select the optimum systems for your specific
building and location.
This interactive display presents energy cost comparisons for 20 sample scenarios involving major US cities and common building types.
The display consists of static images from Carrier’s Building System Optimizer software. Information about licensing Building System Optimizer is
available from your local Carrier sales office or from www.commercial.carrier.com
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Results shown here do not indicate one system will always be superior to another for a given application and location. Instead, results will vary
significantly based on your project conditions, such as:
• Different location • Different building type, layout or construction • Different HVAC system performance levels • Different HVAC system control setpoints • Different HVAC system components • Consideration of first cost and installation cost • Consideration of lifecycle equipment, energy and maintenance costs
Building System Optimizer can help you identify the optimal system for your application.
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SYSTEM 2: WSHP Loop (Carrier 50PT, 16.5 EER, 5.6 COP plus WSHP
DOAS with ERV)
SYSTEM 1: Large VAV Rooftops (Carrier 48N, 10 EER, PFPMBX terminals,
enthalpy economizer)
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BUILDING LAYOUT AND DETAILS Office Building
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ANNUAL ENERGY COST RESULTS Office Building, New York City
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ANNUAL ENERGY COST RESULTS Office Building, New York City
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SYSTEM 2: WSHP Loop (Carrier 50PT, 16.5 EER, 5.6 COP plus WSHP
DOAS with ERV)
SYSTEM 1: Large VAV Rooftops (Carrier 48N, 10 EER, PFPMBX terminals,
enthalpy economizer)
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BUILDING LAYOUT AND DETAILS Office Building
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ANNUAL ENERGY COST RESULTS Office Building, Chicago
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ANNUAL ENERGY COST RESULTS Office Building, Chicago
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SYSTEM 2: WSHP Loop (Carrier 50PT, 16.5 EER, 5.6 COP plus WSHP
DOAS with ERV)
SYSTEM 1: Large VAV Rooftops (Carrier 48N, 10 EER, PFPMBX terminals,
enthalpy economizer)
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BUILDING LAYOUT AND DETAILS Office Building
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ANNUAL ENERGY COST RESULTS Office Building, Orlando
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ANNUAL ENERGY COST RESULTS Office Building, Orlando
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SYSTEM 2: WSHP Loop (Carrier 50PT, 16.5 EER, 5.6 COP plus WSHP
DOAS with ERV)
SYSTEM 1: Large VAV Rooftops (Carrier 48N, 10 EER, PFPMBX terminals,
enthalpy economizer)
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BUILDING LAYOUT AND DETAILS Office Building
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ANNUAL ENERGY COST RESULTS Office Building, Dallas
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ANNUAL ENERGY COST RESULTS Office Building, Dallas
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SYSTEM 2: WSHP Loop (Carrier 50PT, 16.5 EER, 5.6 COP plus WSHP
DOAS with ERV)
SYSTEM 1: Large VAV Rooftops (Carrier 48N, 10 EER, PFPMBX terminals,
enthalpy economizer)
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BUILDING LAYOUT AND DETAILS Office Building
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ANNUAL ENERGY COST RESULTS Office Building, Los Angeles
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ANNUAL ENERGY COST RESULTS Office Building, Los Angeles
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SYSTEM 2: VRF with Heat Recovery
(Toshiba-Carrier MMY-VRF 11.0 EER, 3.3 COP plus RTU DOAS with ERV)
SYSTEM 1: Premium Efficiency Rooftops
(Carrier 48LC, 13.0 EER, multi-speed fan, enthalpy economizer)
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BUILDING LAYOUT AND DETAILS Elementary School
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ANNUAL ENERGY COST RESULTS Elementary School, New York City
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ANNUAL ENERGY COST RESULTS Elementary School, New York City
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SYSTEM 2: VRF with Heat Recovery
(Toshiba-Carrier MMY-VRF 11.0 EER, 3.3 COP plus RTU DOAS with ERV)
SYSTEM 1: Premium Efficiency Rooftops
(Carrier 48LC, 13.0 EER, multi-speed fan, enthalpy economizer)
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BUILDING LAYOUT AND DETAILS Elementary School
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ANNUAL ENERGY COST RESULTS Elementary School, Chicago
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ANNUAL ENERGY COST RESULTS Elementary School, Chicago
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SYSTEM 2: VRF with Heat Recovery
(Toshiba-Carrier MMY-VRF 11.0 EER, 3.3 COP plus RTU DOAS with ERV)
SYSTEM 1: Premium Efficiency Rooftops
(Carrier 48LC, 13.0 EER, multi-speed fan, enthalpy economizer)
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BUILDING LAYOUT AND DETAILS Elementary School
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ANNUAL ENERGY COST RESULTS Elementary School, Orlando
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ANNUAL ENERGY COST RESULTS Elementary School, Orlando
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SYSTEM 2: VRF with Heat Recovery
(Toshiba-Carrier MMY-VRF 11.0 EER, 3.3 COP plus RTU DOAS with ERV)
SYSTEM 1: Premium Efficiency Rooftops
(Carrier 48LC, 13.0 EER, multi-speed fan, enthalpy economizer)
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BUILDING LAYOUT AND DETAILS Elementary School
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ANNUAL ENERGY COST RESULTS Elementary School, Dallas
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ANNUAL ENERGY COST RESULTS Elementary School, Dallas
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SYSTEM 2: VRF with Heat Recovery
(Toshiba-Carrier MMY-VRF 11.0 EER, 3.3 COP plus RTU DOAS with ERV)
SYSTEM 1: Premium Efficiency Rooftops
(Carrier 48LC, 13.0 EER, multi-speed fan, enthalpy economizer)
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BUILDING LAYOUT AND DETAILS Elementary School
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ANNUAL ENERGY COST RESULTS Elementary School, Los Angeles
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ANNUAL ENERGY COST RESULTS Elementary School, Los Angeles
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SYSTEM 2: VSD Screw Chillers with Induction Beams
(Carrier 23XRV with 36IB Induction Beams, VSD CHW pump, VSD condenser pump, VSD tower fan plus AHU DOAS with ERV)
SYSTEM 1: VSD Centrifugals with 4-Pipe FCUs
(Carrier 19XRV, 0.57 kW/ton, plus AHU DOAS with ERV)
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BUILDING LAYOUT AND DETAILS Hospital
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ANNUAL ENERGY COST RESULTS Hospital, New York City
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ANNUAL ENERGY COST RESULTS Hospital, New York City
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SYSTEM 2: VSD Screw Chillers with Induction Beams
(Carrier 23XRV with 36IB Induction Beams, VSD CHW pump, VSD condenser pump, VSD tower fan plus AHU DOAS with ERV)
SYSTEM 1: VSD Centrifugals with 4-Pipe FCUs
(Carrier 19XRV, 0.57 kW/ton, plus AHU DOAS with ERV)
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BUILDING LAYOUT AND DETAILS Hospital
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ANNUAL ENERGY COST RESULTS Hospital, Chicago
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ANNUAL ENERGY COST RESULTS Hospital, Chicago
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SYSTEM 2: VSD Screw Chillers with Induction Beams
(Carrier 23XRV with 36IB Induction Beams, VSD CHW pump, VSD condenser pump, VSD tower fan plus AHU DOAS with ERV)
SYSTEM 1: VSD Centrifugals with 4-Pipe FCUs
(Carrier 19XRV, 0.57 kW/ton, plus AHU DOAS with ERV)
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BUILDING LAYOUT AND DETAILS Hospital
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ANNUAL ENERGY COST RESULTS Hospital, Orlando
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ANNUAL ENERGY COST RESULTS Hospital, Orlando
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SYSTEM 2: VSD Screw Chillers with Induction Beams
(Carrier 23XRV with 36IB Induction Beams, VSD CHW pump, VSD condenser pump, VSD tower fan plus AHU DOAS with ERV)
SYSTEM 1: VSD Centrifugals with 4-Pipe FCUs
(Carrier 19XRV, 0.57 kW/ton, plus AHU DOAS with ERV)
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BUILDING LAYOUT AND DETAILS Hospital
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ANNUAL ENERGY COST RESULTS Hospital, Dallas
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ANNUAL ENERGY COST RESULTS Hospital, Dallas
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SYSTEM 2: VSD Screw Chillers with Induction Beams
(Carrier 23XRV with 36IB Induction Beams, VSD CHW pump, VSD condenser pump, VSD tower fan plus AHU DOAS with ERV)
SYSTEM 1: VSD Centrifugals with 4-Pipe FCUs
(Carrier 19XRV, 0.57 kW/ton, plus AHU DOAS with ERV)
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BUILDING LAYOUT AND DETAILS Hospital
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ANNUAL ENERGY COST RESULTS Hospital, Los Angeles
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ANNUAL ENERGY COST RESULTS Hospital, Los Angeles
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SYSTEM 2: Premium Efficiency Rooftops
(Carrier 48LC, 13 EER, multi-speed fan, enthalpy economizer)
SYSTEM 1: Standard Efficiency Rooftops
(Carrier 48TC, 11 EER, single-speed fan, enthalpy economizer)
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BUILDING LAYOUT AND DETAILS Large Retail
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ANNUAL ENERGY COST RESULTS Large Retail, New York City
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ANNUAL ENERGY COST RESULTS Large Retail, New York City
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SYSTEM 2: Premium Efficiency Rooftops
(Carrier 48LC, 13 EER, multi-speed fan, enthalpy economizer)
SYSTEM 1: Standard Efficiency Rooftops
(Carrier 48TC, 11 EER, single-speed fan, enthalpy economizer)
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BUILDING LAYOUT AND DETAILS Large Retail
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ANNUAL ENERGY COST RESULTS Large Retail, Chicago
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ANNUAL ENERGY COST RESULTS Large Retail, Chicago
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SYSTEM 2: Premium Efficiency Rooftops
(Carrier 48LC, 13 EER, multi-speed fan, enthalpy economizer)
SYSTEM 1: Standard Efficiency Rooftops
(Carrier 48TC, 11 EER, single-speed fan, enthalpy economizer)
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BUILDING LAYOUT AND DETAILS Large Retail
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ANNUAL ENERGY COST RESULTS Large Retail, Orlando
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ANNUAL ENERGY COST RESULTS Large Retail, Orlando
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SYSTEM 2: Premium Efficiency Rooftops
(Carrier 48LC, 13 EER, multi-speed fan, enthalpy economizer)
SYSTEM 1: Standard Efficiency Rooftops
(Carrier 48TC, 11 EER, single-speed fan, enthalpy economizer)
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BUILDING LAYOUT AND DETAILS Large Retail
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ANNUAL ENERGY COST RESULTS Large Retail, Dallas
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ANNUAL ENERGY COST RESULTS Large Retail, Dallas
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SYSTEM 2: Premium Efficiency Rooftops
(Carrier 48LC, 13 EER, multi-speed fan, enthalpy economizer)
SYSTEM 1: Standard Efficiency Rooftops
(Carrier 48TC, 11 EER, single-speed fan, enthalpy economizer)
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BUILDING LAYOUT AND DETAILS Large Retail
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ANNUAL ENERGY COST RESULTS Large Retail, Los Angeles
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ANNUAL ENERGY COST RESULTS Large Retail, Los Angeles
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