Rinnai 20 and 24 kW Reverse Cycle Review


From $5665

Product highlights
  • Slimline design
  • Extra-large capacity
  • Highly efficient
Compare Air Conditioning Rating
Brand reliability score
Capacity (kW) of systems in this series
20 kW, 24 kW

Key Features

Easy Set-up

The indoor fan coil unit arrives in two pieces, allowing for easier handling and installation.

Programmable Controller

This dedicated wired, programmable controller is easy to use remote, to keep you in control of your comfort.

Fast Temperature Control

A combination of control mechanisms monitors the system’s operating conditions to maintain your chosen temperatures.

High Capacity

At 20 and 24 kW, these units are designed for powerful output, making them perfect for larger homes or regions with extremes in weather.

Reduced Operational Costs

This system is 3 times more energy efficient than conventional electric heating, taking some of the worry out of facing huge utility bills.

For Harsh Conditions

This system is able to cool at temperatures ranging outside from -15°C to 46°C and heat at -15°C to 24°C, making it ideal for the extremes of the Australian climate.


Front Panel Colour
Reverse Cycle
Indoor Type
Ceiling Mounted
Power Supply
3 Phase, 415, 50Hz
Manufacturer Warranty (Years)
5 years
Number of fan speeds

20 and 24 kW Reverse Cycle

Specification20 kW 24 kW
Model Number - Indoor UnitDINLR20Z7 DINLR24Z7
Model Number - Outdoor UnitDONSR20Z9 DONSR24Z9
Cooling Capacity (kW)2023.5
Heating Capacity (kW)2025
Indoor Sound Level (H/SL)57 / 54 / 50 57 / 54 / 50
Outdoor Sound Level (H/SL)7072
Indoor unit Dimensions (HxWxD) (mm)515 x 1454 x 931515 x 1454 x 931
Outdoor unit Dimensions (HxWxD) (mm)1558 x 1120 x 5281558 x 1120 x 528

* C = Cooling H = Heating

Links and Documents

Operational manual and other product-related documents

Controller Features

  • Sleep mode
  • iOS or Android Wi-Fi App
  • Turbo function
  • On/off timer
  • Easy operation
  • On/Off timer
  • Remote option

Other Features

  • Reverse cycle
  • Total home solution
  • Inverter technology



this unit was under warranty replacement . so far was winter and I used it only 2 or 3 times and was ok. will see when summer is coming to use more often my old air con was not strong and stop working after 2 years now I am looking forward for this new Rinnai air con.

— Vic, 11 September 2018

Far superior than our Fujitsu.

Very economical, fast to cool and quiet function leaves the Fujitsu’s we have in the dust. And the outside unit does not vibrate like all our Fujitsu’s do. We like the 5yr parts and labour warranty which is the same as Fujitsu and we hope we don’t have to have it repaired on a regular basis like the Fujitsu. Price was brilliant compared to other inferior brands.

— Ishkaa, 9 March 2020

This is perfect for summer

Perfect for me and it has cooling and heating system which does its job very quickly and it doesn’t have any noise which is good and I didn’t use it much because its winter .in winter heating system works well for me and unit system is good . Hopefully this summer is cooler with Rinnai.

— Srah, 23 October 2019

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