Copeland is leading the charge with innovative technologies that enable the development of hydronic heat pumps and heat pump water heaters that deliver sustainable, reliable comfort.

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Heat Pump Water Heater Compression Solutions

Boilers are essential in commercial buildings, providing a reliable heat source and hot water for daily operations and occupant comfort. Today, natural gas and oil are the most common fuel sources for commercial boilers, but decarbonization initiatives are driving the push toward electrification using heat pump water heaters. Copeland compression platforms are engineered to help boiler manufacturers decarbonize legacy fossil-fuel systems. 

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Hydronic Heat Pump Compression Solutions

Legacy residential hydronic heating systems use gas-fired boilers to generate hot water distributed to radiators, baseboards and underfloor piping. Hydronic heat pumps (air-to-water) are poised to decarbonize these systems, providing year-round cooling and heating, and often domestic hot water (DHW). Copeland compression technologies deliver water-leaving temperatures needed to achieve desired comfort and hot water levels, while continuously maximizing system efficiencies.

Copeland supports the electric water heating market with cutting-edge compression technologies. Fixed- and variable-speed platforms are equipped with enhanced vapor injection (EVI) technologies to enable original equipment manufacturers (OEMs) to achieve sufficient water temperatures in low-ambient conditions. 

Enhanced vapor injection technology

Copeland’s fixed- and variable-speed scroll platforms are equipped with enhanced vapor injection (EVI) technology, which enables OEMs to achieve sufficient leaving water temperatures in low-ambient conditions. EVI technology, combined with optimized compressor operating envelopes, delivers best-in-class hydronic heating performance. 

EVI Compressors - Vapor Injection Flow Details

Comprehensive Integrated Hydronic Heat Pump Solutions

Refrigeration & Cold Chain

Copeland’s comprehensive package for hydronic heat pumps includes a variable capacity scroll compressor, controllers, a perfectly matched drive, and flow controls. Each component integrates with other components of the system for optimal performance and reliability.

Residential & Commercial Products


Copeland YAW variable-speed scroll with enhanced vapor injection (EVI)

Copeland YAW variable-speed scroll compressor with EVI

  • Optimized operating envelope for water heating and low ambient conditions  
  • Enables 140 °F water temperatures  
  • Optimized for use with lower-GWP R-454B 
  • Available in smaller (2-, 3-, 4-, 5-ton) and larger (10-, 15- 20-, 25-ton) tonnages  
Copeland YHV variable-speed scroll compressor

Copeland YHV variable-speed compressor

  • Optimized operating envelope for water heating
  • Enables 160 °F water temperatures with R-454C; 180 °F with R-290
  • Dual-refrigerant compatibility with R-454C and R-290 (for EU and future U.S.)
Copeland YHW variable-speed scroll with EVI (R-454B)

Copeland YHW variable-speed scroll with EVI (R-454B)

  • Optimized operating envelope for water heating
  • Enables 140 °F water temperatures
Fixed speed scroll Compressor A2L-YAI

Copeland YAI fixed-speed scroll with EVI

  • Optimized operating envelope for water heating and low ambient conditions
  • Enables 140 °F water temperatures
  • Optimized for use with lower-GWP R-454B
  • Available in larger tonnages (12-40 ton) tonnages
Copeland YHI fixed-speed scroll with EVI (R-454B)

Copeland YHI fixed-speed scroll with EVI (R-454B)

  • Optimized operating envelope for water heating 
  • Enables 140 °F water temperatures 
  • EVI combined with fixed speed is similar to having a second stage of capacity
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Copeland ZB compressor platform

  • Designed for commercial heat pump water heaters (for DHW)
  • Optimized for A1 R-513A refrigerant intended as a direct replacement R-134A
  • Complies with the sub-700 GWP requirement
  • Enables 150 °F water temperatures
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Copeland ZH compressor platform

  • Designed for commercial heat pump water heaters (for DHW) 
  • Optimized for A1 R-513A refrigerant, intended as a direct replacement R-134A
  • Complies with the sub-700 GWP requirement 
  • Enables 165 °F water temperatures
Copeland 4MTLS transcritical CO₂ compressor

Copeland 4MTLS transcritical CO₂ compressor

  • Designed for commercial heat pump water heaters (for DHW) 
  • Leverages sustainable, ultra-low-GWP natural refrigerant CO
  • Enables +200 °F water temperatures 

Controllers, Drives, and Expansion Devices


Copeland EV4 variable frequency drive

Copeland Outdoor Unit Control Board

  • Centralizes all control functions
  • Optimizes system performance and simplifies integration
  • Faster development cycles and easier management
  • Dual expansion valve control to optimize performance for both heating and cooling cycles
  • USB data logging with fault detection and diagnostics
  • Advanced pump control
  • Scalable design for residential and commercial applications
EXM / EXL Electronic Control Valves

Copeland Electronic Expansion Valve

  • Complete lineup than meets various system configuration needs
  • Accurate control of refrigerant pressure
  • Outstanding reliability
Copeland iPro controller

Copeland iPro Controller

  • Platform of programmable controllers that offers complete solutions for the management of HVAC/R applications
  • Designed for compressor racks, chillers, heat pump units, and air handling units
  • Expansion modules, user interfaces, enhanced development tools, and cloud management
Copeland EV4 variable frequency drive

Copeland Indoor Unit Control Board

  • Microprocessor continually monitors, analyzes and controls the proper operation of the indoor components
  • Communicates with the outdoor unit controller
  • Optimizes system performance and simplifies integration
  • Faster development cycles and easier management
  • Scalable design for residential and commercial applications