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Key Features
- 5.1kW cooling and 6.1kW heating capacity for effective climate control.
- Sleep Mode automatically adjusts temperature for comfort and energy efficiency overnight.
- HEPA 13 and Cold Catalyst filters capture bacteria and VOCs for cleaner air.
- Self-clean function removes dirt, mildew, and bacteria for healthier air.
- Turbo mode rapidly cools or heats your room to reach desired temperature faster.
- +Home app allows remote control and scheduling from your smartphone.
Westinghouse 5.1kW Split System Air Conditioner, WSD51HWA

5.1kW split system reverse cycle air conditioner featuring wireless connectivity, inverter compressor, DC fan motor, Super ion filter & bio filter, 3D air flow, Follow-Me, LED remote, demand response capable. 5.1kW cooling/6.1kW heating capacity.
Key Features:
Enjoy a peaceful nights sleep
Sleep Mode is designed to create the ideal sleeping environment, providing you with ultimate comfort and more energy efficiency1. The Sleep Mode feature automatically adjusts the temperature and fan speed to maintain optimal comfort throughout the night gradually increasing or decreasing the temperature as you sleep, preventing excessive cooling or heating and creating a quiet and uninterrupted sleep experience.
Breathe easy filters
Our air conditioners come with two different types of filters to help keep your home cleaner and healthier. The HEPA 13 filters capture up to 99.99% of common harmful bacteria2and the Cold Catalyst filtration helps trap and remove volatile organic compounds (VOCs) and gases3. Plus, they are easy to clean and maintain, ensuring that your air conditioner continues to run to at peak performance.
Effortless maintenance
With a touch of a button, the self-clean function effortlessly initiates a thorough cleaning cycle that helps remove the build up dirt, mildew and bacteria from the units components. It does this by cleaning the internal mechanisms of the air conditioner to help maintain a healthier environment.
Boost your cooling or heating
Turbo mode activates fast cooling or heating to bring your room to a desired temperature quickly and effectively. Use this on those extra hot or cold days to get comfortable quickly.
Control your comfort from anywhere with our +Home app
You'll love the convenience of being connected to control your home's temperature from anywhere, at any time. With the touch of a button on your smartphone, you can adjust the temperature, set schedules, and monitor energy usage from the comfort of your couch or on the go.Our +Home APP* now also integrates with the Google and Amazon voice assistants, for the next level of control at home.*Internet and mobile device required.
1 Based on Sleep Mode versus Normal Mode operation of Westinghouse air conditioner unit.
2 Tested on Escherichia coli, Staphylococcus aureus and Klebsiella pneumonia.
3 Tested on Ethyl Mercaptan, Ammonia and Trimethylamine.
Specifications
Global
- EAN:
- 9316561085549
- Model Number:
- WSD51HWA
General
- Colour:
- White
- Cooling Capacity (Kw):
- 5.1
- Filter Type:
- HEPA
- Heating Capacity (Kw):
- 6.1
Features
- Anti-Dust Filter:
- Yes
- Auto Fan:
- Yes
- Automatic Louvre:
- No
- Auto Restart:
- Yes
- Auto Up/Down Swing Louvre:
- Yes
- Dehumidifier:
- No
- Eco Mode:
- No
- Handle:
- No
- Non Drip:
- No
- Oscillating Louver:
- No
- Remote Control:
- Yes
- Sleep Mode:
- Yes
- Timer:
- Yes
- Turbo Fan:
- Yes
- Weekly Timer:
- No
Design
- Fan Speed:
- 3 + turbo
Performance
- Moisture Removal (L/H):
- 0.41
Energy Specification/Power
- Energy Rating (Cooling):
- 4.5
- Energy Rating (Heating):
- 4
- Noise Level (dBa):
- 45, 37, 59
- Power Input (W):
- 5100
Dimensions
- Depth:
- 279mm
- Height:
- 370mm
- Indoor Dimensions - H x W x D (mm):
- 370 x 1196 x 279
- Outdoor Dimensions - H x W x D (mm):
- 673 x 890 x 342
- Width:
- 1196mm
Weight
- Indoor Weight - (Kg):
- 23.4
- Outdoor Weight - (Kg):
- 44.5
In The Box & Warranty
- Included:
- Remote control
- Warranty (Years):
- 5
Manuals
Why Buy?
Steady heating and cooling for larger living spaces
This Westinghouse 5.1kW split system reverse cycle air conditioner is built for rooms that need a real workout, not just a light breeze. With 5.1kW of cooling and 6.1kW of heating, it handles open-plan living areas and larger bedrooms without struggling on the hottest or coldest days.
The inverter compressor and DC fan motor work together to reach your set temperature quickly, then settle into a steady, quiet rhythm rather than constantly switching on and off. Sleep Mode gently adjusts temperature and fan speed overnight so you are not woken by a blast of cold air or an overheated room, while Turbo mode gives you fast relief on extreme days. The Super ion and bio filters help catch everyday dust and odours, and the self-clean function keeps the internals fresh with a single button press, cutting down on manual maintenance.
Control comes through an LED remote or the +Home app, so you can adjust the room from your phone before you even walk in the door. Finished in white with a compact indoor unit, it suits most living rooms and larger bedrooms without dominating the wall, and its demand response capability helps it work smarter with your home's energy use.
Buy this if…
- You need strong heating and cooling for a larger living or bedroom space
- You want quieter, steadier temperature control instead of constant on-off cycling
- Cleaner air and easy filter maintenance matter to your household
- You like adjusting the temperature remotely through an app before you get home
- You want a dependable Westinghouse split system built for everyday Australian conditions















