Copeland Heating-Optimized Modulating Vapor Injection Portfolio
Copeland was honored to receive the 2026 AHR Innovation Award in the heating category for our breakthrough compression portfolio. Combining enhanced vapor injection (EVI) capabilities with advanced modulating scroll compression technologies, this platform offers maximum scalability to redefine performance and efficiency in the next generation of residential and commercial heating.
As the HVAC industry transitions to more eco-friendly equipment, decarbonizing gas-powered heating with heat pump technologies remains a top priority. Our heating-optimized modulating vapor injection portfolio helps heat pump, RTU and chiller OEMs achieve this goal and overcome comfort limitations in cold climates. By optimizing two-stage, variable-speed and tandem scroll compressor configurations with EVI technology, this portolio makes a significant leap forward in capacity and efficiency for space and water heating.
The 2026 AHR Award reflects Copeland's commitment to technological advancements in enabling energy transitions without sacrificing comfort. EVI significantly enhances the benefits of modulating compression technology to achieve maximum capacity and efficiency gains. Combined with our broad range of lower-GWP, A2L-optimized modulating and tandem compressors, this heating-optimized portfolio unlocks a new era of high performance and application flexibility.
Enhanced Vapor Injection Technology
Copeland's modulating two-stage, variable-speed and tandem scroll platforms are equipped with EVI to achieve the capacity and efficiency requirements of next-generation heat pumps for hot air and water applications. See how EVI works.
EVI Compressors - Vapor Injection Flow Details
Residential & Commercial Heating-Optimized Vapor Injection Portfolio
- YAB
- YAW
- YHW
- YAWU
YAB two-stage scroll compressor with EVI
- Designed for cold climate rooftop units and high-performance heating solutions for light or heavy commercial buildings
- Available in large 6– 15 tonnage ranges
- Optimized for high full- and part-load performance, as well as cold climate heating
- R-454B refrigerant
YAW variable-speed scroll with EVI
- Delivers maximum heat pump capacity and efficiency
- Available in small (2-, 3-, 4- and 5-ton) and large (10-, 15-, 20- and 25-ton) tonnage ranges for wide applicability in residential and commercial applications
- Enables space and water heating in low-ambient conditions
- R-454B refrigerant
YHW variable-speed scroll compressor with EVI
- Optimized operating envelope for water heating
- Enables 140 °F water temperatures
YAWU variable-speed scroll tandem compressor with EVI
- Optimized compressor pairing of YAW variable-speed scroll and YAI single-stage scroll increases modulation control, expands operational range and efficiency
- Customizable commercial ranges offer flexibility for OEMs, enabling wide applicability and tandem configurations smaller than single compressors
- Delivers the heating capacities and efficiencies required to meet the DOE’s strict
- CCHP standard
- R-454B refrigerant
Ideal control for heating-optimized compressors
Copeland offers a complete range of integrated solutions for dedicated heating and reversible system applications. Our heating-optimized modulating vapor injection compressors, along with our selection of electronic expansion valves, drives and controllers, helps heat pump, RTU and chiller OEMs achieve electrification of heating and overcome comfort limitations in cold climates. By optimizing two-stage, variable-speed and tandem scroll compressor configurations with EVI technology, this portfolio makes a significant leap forward in capacity and efficiency for space and water heating.
- EVI CONTROLLER
- EVI ELECTRONIC EXPANSION VALVE
- EVM VARIABLE FREQUENCY DRIVE
Copeland EVI Controller
- Stand-alone controller for enhanced vapor injection for Copeland scroll compressors in heating applications
- Autotuning PID loop for superheat control of main evaporator and/or economizer
- Compressor discharge hot gas temperature alarm
- Optimal start-up function
- RS485 serial communication to system controller (Modbus)
- Copeland integrated solution
Copeland EVI Electronic Expansion Valve and Coil
- Electrical control valves for heat pump and air conditioning applications
- Unipolar stepper motor
- Bi-flow (same performance in both flow directions in term of capacity)'
- Removable coils sold separately
- Continuous modulation of mass flow]
- Hermetic design
Copeland EVM Variable Frequency Drive
- 4 frame sizes (0.5–30HP)
- Keypad (onboard & remote options)]
- Onboard safe torque off (STO)]
- 5 onboard communication protocols
- Motor auto-tuning
- Bluetooth®
- Pro and basic versions
- Onboard energy-savings calculator
