Daikin Comfort Technologies North America has introduced the Daikin VRV EMERION commercial heat pump and heat recovery systems using low-GWP R-32 refrigerant. The new three-phase, air-cooled lineup is designed to streamline installation, simplify maintenance and expand monitoring capabilities while improving performance and sustainability compared with current R-410A-based systems.
The systems are available from 6 to 40 tons and use Variable Refrigerant Technology, with efficiencies up to 24.6 IEER and 3.80 COP, compared to R-410A VRV EMERION systems. Daikin said the R-32 systems use a lower total system charge than VRV EMERION R-410A systems and that R-32 is easy to reuse, reclaim or recycle.
The lineup covers an ambient temperature range from -22°F (-30°C) to 122°F (50°C). Continuous heating during defrost can be provided with single-module 16- to 20-ton systems and all dual-module 22- to 40-ton heat pump and heat recovery systems.
For retrofit applications, the new VRV EMERION with R-32 allows reuse of existing R-410A piping through a field setting. The systems support up to 361 ft. (110 m) of vertical separation, with possibilities up to 720 ft. (219 m). They can also be expanded from single- to dual-module for phased installation or tenant fit-out without changes to installed main pipe sizes.
Daikin said the systems help reduce installation and commissioning time through an auto address feature with D4 communications protocol, compared to VRV EMERION R-410A systems. The new D4 net provides larger data volume and communication speeds up to 30 times faster than D3 net. HERO Cloud Services enables remote data retrieval and field-setting changes, while a built-in recorder stores up to 40 minutes of operational data.
“Launching this innovative and versatile R-32 commercial line for North America exemplifies Daikin’s goal to supply advanced, sustainable and flexible HVAC solutions,” said Sachin Dixit, Vice President, Commercial Strategy and Business Development at Daikin.