General Large Capacity High Static Single Phase R32

General Large Capacity Single Phase R32: Big Comfort Without Three-Phase Power

For Nowra homes that need serious output but do not have three-phase power connected, the General Large Capacity Single Phase R32 ducted system is genuine air conditioning Nowra properties can rely on. The ARTH65KHTA delivers up to 20kW cooling and 22.4kW heating from a single outdoor unit on standard 230V power. It uses R32 refrigerant for lower environmental impact, and we handle professional installation from start to finish.

Built for Nowra and Shoalhaven conditions

Shoalhaven winters can turn genuinely cold overnight, especially inland around Kangaroo Valley and Bangalee, and summer humidity off the coast makes dependable air conditioning Nowra households can trust more of a necessity than a luxury. The Large Capacity Single Phase R32 is built to handle both, with a wide operating range down to minus 15 degrees in cooling mode and heating that stays effective in conditions as low as minus 20 degrees. Because it runs on standard single-phase power, it suits the many established Nowra and Bomaderry homes that were never wired for three-phase, without the cost of a switchboard upgrade.

Our honest take

Our honest take: this is the system we recommend most often for larger homes without three-phase power, and it rarely disappoints. We like that the ARTH65KHTA still reaches genuinely large capacity, up to 22.4kW on the heating side, while running off the normal single-phase supply most Nowra homes already have. The Blue Fin Heat Exchanger holds up well against our local salt air too. Our honest caveat is that at the top of the capacity range you are asking one outdoor unit to do a lot, so for very large or unusually shaped homes we sometimes recommend a two system approach instead.

Key features

Technology

The ARTH65KHTA uses General's R32 inverter compressor to modulate output smoothly, which keeps larger homes at a steady temperature instead of the swings older on and off systems produce. Static pressure automatically adjusts across a 60 to 200 Pa range, so the ductwork can be designed to suit your home's layout rather than the other way around. Zone control lets you shut off unused rooms to save energy, and the system pairs with touchpanel or Wi-Fi enabled controllers for scheduling and app based control, plus demand response compatibility for smarter energy management.

Which system should you choose?

Against the Large Capacity Three Phase R32, this single-phase version tops out slightly lower at 20kW cooling versus 22.4kW, but it avoids the cost and hassle of upgrading your switchboard, which makes it the more practical option for most existing Nowra homes. Compared to our Mid Static Slimline R32 range, this is a genuinely bigger system built for larger floor plans rather than tight roof cavities. We will always measure your home and check your existing power supply before recommending which large capacity option is the right fit.

Installation, warranty and upgrades

Installation includes a full assessment of your existing single-phase power supply, ductwork design and outdoor unit placement, carried out by our licensed technicians. The ARTH65KHTA comes with General's 5 year parts and labour warranty when installed by an authorised dealer such as Denali Air Conditioning. We also offer zoning upgrades and can talk you through finance options for larger installations.

Next Steps

Get a free, fixed-price quote from Denali Air Conditioning. Nowra and Shoalhaven's air conditioning experts. Call 0480 170 143 or request a quote online.

Trusted Reviews From Real Customers