20-24kW Ducted Air Conditioner R410A (Model A)
20-24kW Ducted Air Conditioner R410A (Model A)
Advanced ducted reverse cycle air conditioning for spacious living
Enjoy powerful, whole-home comfort with the Rinnai's 20-24kW Ducted Air Conditioning R410A System (Model A). Sit back as the system discreetly delivers powerful home heating and cooling. Designed for larger homes, this high-capacity system delivers reliable heating and cooling throughout every season while maintaining excellent energy efficiency.
Installed discreetly in your roof cavity, the system uses advanced DC inverter technology and efficient indoor fans to provide quiet operation and smooth temperature control. The intelligent inverter system delivers fast warm-up and cool-down times while helping to reduce energy consumption and running costs.
Experience the benefits of reverse cycle ducted air conditioning without the need for multiple indoor units. The system conditions and filters the air across your home and includes a simple, easy-to-use wired programmable controller for convenient temperature management.
Engineered to be up to three times more efficient than conventional heating, Rinnai’s 20kW and 24kW ducted systems combine rapid temperature response, reliable performance, and a slimline design to deliver year-round comfort for larger living spaces.
The intelligent solution for high-capacity ducted heating and cooling.
Locate Your Nearest Stockist
NOTE: Rinnai does not sell directly to the public. Our products are available only through third-party stockists and installers.
Powerful output for larger homes
Up to 3.5 star energy efficiency rating in cooling mode^
Efficient ducted heating and cooling
Easy to use control system
Fast temperature control
Wi-Fi and Remote access
7 year limited warranty*
Superior Technology
- Up to 3.5 star energy efficiency rating – in cooling mode (^hot climates)
- 3D DC inverter ducted system
- Quiet ducted reverse cycle air conditioning
- Fast temperature control
- Rapid response
- Wired programmable control
- Wi-Fi control – allows for convenient control from anywhere with the SmartHome App+ (App available from the Apple Store or Google Play, and is compatible with Google Home and Amazon Alexa)
Rinnai Quality
- 7 year limited warranty*
FAQs
-
What is a Ducted air conditioning system? >
-
When is Ducted air conditioning a good option? >
-
How do I choose the right size Ducted system? >
-
Can Ducted systems heat as well as cool? >
-
How energy efficient are Ducted systems? >
-
How long does a Ducted system last? >
*For full warranty terms and conditions refer to the related warranty booklet.
NB: Reverse cycle air-conditioners are an effective solution as they provide both cooling and heating and are highly efficient. However, unlike gas heaters, their heating capacity will reduce with colder ambient temperatures, which is especially relevant for homes in colder areas. Discuss with your installer things like the local climate, the size of your house, its orientation and construction (such as glazing, doors, insulation), and your expectations, so a system with the appropriate capacity can be selected.
+Rinnai uses a third-party application (App) to enhance your experience of the Rinnai product. You may use the App at your sole discretion. Please note that when you download and use the App and its services, the third-party’s privacy policy and terms and conditions of service will apply. By using the Rinnai product through this App, you acknowledge and agree that: The third-party App may collect, store, and process your personal information according to its own privacy policy and App terms and conditions. Rinnai does not control and are not responsible for the content, policies, or practices of the third-party App and its services. Rinnai strongly recommends that you review the App privacy policy before using its features. The use of the third-party App is optional. For further information or clarification, please contact us at 1300 555 545 and [email protected]
The product information on this website (comprising product brochures, warranty information, installation manuals, diagrams, specifications and representations) relates to current products. This information may be different for superseded products. For superseded products please contact Rinnai to confirm product information.
Product codes: 20 - DINLR20Z1SA DONSR20Z3TA | 24 - DINLR24Z1SA DONSR24Z3TA
| Rinnai – System Model | 20 | 24 | ||
| Cooling | Rated Capacity | kW | 20 | 24 |
| Capacity Range | 10 – 26 | 13 – 31 | ||
| Annualised Energy Efficiency Ratio [AEER]1 | W/W | 3.3 | 3.5 | |
| Heating | Rated Capacity | kW | 20 | 26 |
| Capacity Range | 10 ~ 26 | 13 ~ 31 | ||
| Annual Coefficient of Performance [ACOP]2 | W/W | 3.6 | 3.6 | |
1. AEER: The Annualised Energy Efficiency Ratio (AEER) measures a cooling system’s efficiency by comparing its total cooling output to the electricity it consumes, including standby power.
2. ACOP: The Annual Coefficient of Performance (ACOP) measures a heater’s efficiency by comparing its total heating output to the electricity it consumes, including standby power.
| Indoor Unit | DINLR20Z1SA | DINLR24Z1SA | ||
| Power Supply | To Outdoor Unit | V- Ph-Hz | 220~240 – 1 – 50 | |
| Rated Input Power | W | 840 | 840 | |
| Rated Input Current | Cooling / Heating | A | 4.0 / 4.0 | 5.3 / 5.3 |
| Maximum Input Current | 6.75 | 6.75 | ||
| Recommended Circuit Breaker | 10 | 10 | ||
| Airflow | High Speed (SP7/6/5/4/3/2/1) | l/s @ 150 | 1180 / 1140 / 1050 / 985 / 920 / 855 / 790 | 1335 / 1260 / 1185 / 1110 / 1040 / 965 / 890 |
| Maximum External Static Pressure (ESP)3 | Pa | 280 | 280 | |
| Noise Level | Sound Pressure @ 1.4m (SP7/6/5/4/3/2/1) |
dB(A) | 47 / 46 / 44 / 42 / 40 / 38 / 37 | 50 / 48 / 46 / 44 /42 / 41 / 40 |
| Dimensions (Height x Width x Depth) |
Net | mm | 477 x 1300 x 910 | |
| Packing | 650 x 1580 x 1090 | |||
| Weight | Net / Gross | kg | 80 / 118 | 82 / 120 |
| Duct Connections (Height x Width) |
Supply Air | mm | 350 x 1120 | |
| Return Air | 393 x 1118 | |||
| Condensate Connection | Gravity Drain | BSPT | 1″ | |
| Pumped Drain | mm | Flexible coupling to suit OD 32-34mm PVC | ||
| Refrigerant Piping | Liquid / Gas Connections | mm (inch) | Ф 12.7 (1/2″) / 22.2 (7/8″) | |
| Moisture Removal | L/h | 14.0 | 16.0 | |
| Controller | Type | Wired Programmable Controller CNTRLDRCI86TW (Includes Wi-Fi) |
||
| Operating Range | °C | 15-32 | ||
3. ESP: External Static Pressure (ESP) refers to the level of resistance the blower fan in an HVAC system must overcome to push air through ductwork, filters, and dampers.
| Outdoor Unit | DONSR20Z3TA | DONSR24Z3TA | ||
| Power Supply | V-Ph-Hz | 415 – 3 – 50 | ||
| Rated Input Power | Cooling / Heating | kW | 6.1 / 5.6 | 7.3 / 7.5 |
| Rated Input Current | A | 11.6 / 10.6 | 15.7 / 16.1 | |
| Maximum Input Current | 19.0 | 20.5 | ||
| Recommended Circuit Breaker Size | 25 | |||
| Compressor | Type | DC Inverter Rotary | ||
| Sound Pressure Level @ 1m | dB(A) | 58 | 59 | |
| Sound Power Level | 77 | 77 | ||
| Dimensions (Height x Width x Depth) |
Net | mm | 1558 x 1120 x 528 | |
| Packing | 1720 x 1270 x 565 | |||
| Weight | Net / Gross | kg | 145 / 160 | 144 / 161 |
| Refrigerant Piping | Type | R410A | ||
| Pre-Charged Length | m | 15 | ||
| Charged Volume | kg | 7.7 | 7.7 | |
| Pre-Charged Length | m | 20 | 20 | |
| Charge Adjustment (Add or Remove) | g / m | 110 | 110 | |
| Liquid / Gas Connections | mm (inch) | ø9.5 (3/8″) / ø19.1 (3/4″) | ø9.5 (3/8″) / ø22.2 (7/8″) | |
| Pipe Run ø Liquid / Gas | ø12.7 (1/2″) / ø22.2 (7/8″) | |||
| Maximum Pipe Length | m | 50 | ||
| Maximum Vertical Separation (Outdoor above) | 25 | |||
| Maximum Vertical Separation (Outdoor below) | 20 | |||
| Ambient Temperature Limits# | Cooling | °C | -5 ~ 48 | |
| Heating | -15 ~ 24 | |||
#Performance tested under internal laboratory conditions. The operating range refers to the specified ambient temperature limits within which the appliance is designed to operate. Heating and cooling capacities may vary depending on ambient conditions.
Capacities rated in accordance with AS3823. With our policy of continuous improvement, we reserve the right to change, or discontinue at any time, specifications or designs without notice.
-
Book a Service
/ Repair / Warranty AssessmentLooking for support?
Please get in touch and let us help.Find a Stockist
We'll help you find a Rinnai stockist so you receive the right advice and product, as locally as possible.















