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Split System Airconditioners
If you're after a split system air conditioner look no further. View our large range at amazing prices [ Read More ]
What is a Split System Air Conditioner?
Split system air conditioners are efficient cooling and heating units with separate indoor and outdoor components. They feature quiet operation, energy-efficient inverter technology, and reverse cycle functionality for year-round comfort in Australian homes and businesses. Most models achieve 4-5 star energy ratings, suit rooms from 10-85m², and include smart controls with Wi-Fi connectivity.
Common Questions About Split System Air Conditioners
Why are split systems so popular in Australia?
Split systems offer the best balance of affordability, efficiency, and performance for Australian homes. They cost less upfront than ducted systems, use 30% less energy than older fixed-speed units, and operate quietly with the noisy compressor located outside. Their reverse cycle capability means one unit handles both summer cooling and winter heating.
What's the difference between split systems and ducted air conditioning?
Split systems cool or heat individual rooms using wall-mounted or ceiling-mounted indoor units. They're ideal for targeted comfort and cost $600-$1,200 installed. Ducted systems distribute air throughout your entire home via ceiling ducts but cost $5,000+ and require roof space for installation.
How does a split system air conditioner work?
Split systems use the refrigeration cycle to transfer heat. The indoor unit contains an evaporator coil that absorbs heat from room air. Refrigerant carries this heat to the outdoor unit, where it's released through the condenser. In reverse cycle mode, this process flips to bring warmth inside during winter.
Do split systems need regular maintenance?
Yes. Clean filters monthly, wash with mild detergent quarterly, and schedule professional servicing every 2-3 years. Regular maintenance maintains efficiency, prevents breakdowns, reduces energy bills, and keeps your 5-year manufacturer warranty valid. Neglected units lose up to 25% cooling performance.
Key Features & Benefits
Energy Efficient Operation
Inverter technology adjusts compressor speed to match cooling needs rather than cycling on and off. This reduces energy consumption by 30% compared to fixed-speed units, lowering electricity bills whilst maintaining consistent temperature.
Whisper-Quiet Performance
Indoor units operate at just 19-24dB—quieter than a whisper. The noisy compressor sits outside, allowing peaceful sleep and work without distraction. Perfect for bedrooms, home offices, and living areas.
Reverse Cycle Heating
Most split systems provide year-round comfort by extracting heat from outdoor air—even on cold days—and bringing it inside during winter. One unit handles both heating and cooling, eliminating separate heater costs.
Smart Controls & Wi-Fi
Modern units connect to smartphone apps, allowing remote temperature control from anywhere. Set schedules, monitor energy use, and arrive home to the perfect temperature. Compatible with Alexa and Google Assistant.
Advanced Air Filtration
Multi-layer filters remove dust, allergens, and microbes from indoor air. Premium models feature air purification technology approved by the National Asthma Council Australia, improving air quality for allergy and asthma sufferers.
Quick Installation
Experienced technicians complete installation within hours. No major home alterations required—just mounting brackets, refrigerant lines, and electrical connections. Operational the same day in most cases.
Types of Split System Air Conditioners
Standard Wall-Mounted Split Systems
Most Common Residential Choice
Indoor unit mounts high on interior walls, distributing air throughout single rooms. Ideal for bedrooms, living rooms, and home offices. Capacity ranges from 2.5kW to 8kW, covering spaces from 10m² to 85m².
Best for: Individual room cooling and heating
Multi-Split Systems
Multiple Indoor Units, Single Outdoor Unit
Connect 2-5 indoor units to one outdoor compressor, perfect for apartments or homes with limited outdoor space. Each room controls temperature independently whilst sharing efficient outdoor equipment.
Best for: Multi-room homes with space constraints
Ceiling Cassette Split Systems
Commercial & Large Space Solution
Indoor unit recesses into ceiling with only decorative grille visible. Distributes conditioned air in 4 directions for even coverage. Suits commercial spaces, retail stores, and open-plan areas where wall space is limited.
Best for: Commercial spaces and large open areas
Choosing Between System Types
Standard wall splits work for most homes needing targeted room comfort. Choose multi-splits when outdoor space is tight or aesthetics matter. Select cassette systems for commercial spaces, retail fit-outs, or residential properties with suspended ceilings and large open areas.
Top Split System Brands in Australia
Premium Performance Brands
Daikin
Specialisation: Air conditioning innovation and commercial applications
Key Features: Intelligent eye sensors, Wi-Fi control, advanced air purification, 5-star energy ratings
Best For: Premium features and National Asthma Council approval
Mitsubishi Electric
Specialisation: Ultra-quiet operation and residential comfort
Key Features: 19dB operation, superior air filtration, WiFi control, sleek design
Best For: Quiet operation and advanced air purification
Fujitsu
Specialisation: Energy efficiency and intelligent features
Key Features: Human sensor technology, 30% energy reduction, auto power-save mode
Best For: Energy savings and smart automation
Mitsubishi Heavy Industries
Specialisation: All-year comfort and air quality
Key Features: Built-in Wi-Fi on some of the newer models
Best For: Dual Filtration, Air quality and Allergen Clear Filters
Value-Focused Brands
Rinnai P Series
45+ years in Australia. Offers affordable units with advanced energy-efficient features. Excellent budget option without sacrificing reliability. Wide range of residential and commercial systems.
Haier
Good value rating for money. Capacities from 2.5kW to 9kW. Many models achieve 5-star energy ratings. Reliable performance at competitive prices.
Rinnai T Series
The Rinnai T Series indoor unit boasts a new, sleek, and contoured white matte finish. The quiet outdoor unit features a robust yet compact design, reducing the outdoor footprint.
Brand Comparison Summary
Premium choice: Daikin, Mitsubishi Electric, Fujitsu for advanced features and maximum efficiency
Best value: Mitsubishi Heavy Industries, Rinnai for reliable performance at budget-friendly prices
Smart features: Daikin, Fujitsu, Mitsubishi Wi-Fi for connectivity and modern design
Choosing the Right Size Split System
Cooling capacity is measured in kilowatts (kW). Too small won't cool properly; too large wastes energy. Room size, ceiling height, insulation, window area, and sun exposure all affect sizing requirements.
Quick Sizing Guide
| Capacity (kW) | Room Size (m²) | Typical Application |
|---|---|---|
| 2.5kW | 10-25m² | Small bedroom, home office, study |
| 3.5kW | 20-35m² | Master bedroom, medium living room |
| 5.0kW | 30-50m² | Large living room, open-plan kitchen |
| 7.0kW | 50-70m² | Large open-plan area, combined living/dining |
| 8.0kW+ | 70-85m² | Very large spaces, commercial applications |
Important Sizing Factors
Ceiling height: Rooms over 2.4m need additional capacity
Insulation quality: Poor insulation requires larger units
Window size and orientation: Large west-facing windows add significant heat load
Climate zone: Northern Queensland needs more capacity than Tasmania
Professional advice recommended: Heat load calculations consider all factors for accurate sizing
Installation Considerations
Licensed air conditioning technicians must install all split systems in Australia. They hold refrigerant handling licences and ensure compliance with Australian standards.
What Professional Installation Includes
Site Assessment
Technician evaluates ideal indoor unit location, outdoor unit placement, electrical supply, and refrigerant line routing. Confirms wall structure can support mounting brackets safely.
Indoor Unit Installation
Mount bracket installed high on wall (typically 2.1m+). Indoor unit secured to a bracket, with a drainage pipe connected to the exterior. Positioned away from direct sunlight and heat sources.
Outdoor Unit Mounting
Compressor unit mounted on a secure bracket or concrete pad. Must have clearance on all sides for airflow. Located away from bedroom windows to minimise noise. Protected from direct weather exposure where possible.
Refrigerant Line Connection
Copper pipes connect indoor and outdoor units through wall penetration. Lines concealed in protective conduit. System vacuumed and pressure-tested before refrigerant charging. Critical for efficiency and longevity.
Electrical Connection
Dedicated circuit installed from the switchboard. Cable runs concealed where possible. System is earthed correctly. Isolation switch installed near the outdoor unit. All work complies with AS/NZS 3000.
Testing & Commissioning
Technician tests all functions, checks refrigerant pressures, verifies drainage, demonstrates operation, and provides maintenance instructions. Warranty documentation completed. Typical installation time: 4-6 hours.
Installation Costs
Standard installation typically costs $600-$1,200, depending on unit size, location difficulty, and electrical work required. Multi-storey or complex installations cost more. Always get written quotes including all materials and labour.
Many suppliers offer package deals that include units and installation at competitive rates.
Maintenance & Care
Regular maintenance keeps your split system running efficiently, extends its lifespan, maintains warranty validity, and prevents expensive breakdowns. Well-maintained units last 10-15 years.
Maintenance Schedule
Monthly: Clean or vacuum indoor unit filters. Remove dust and debris. Check for unusual noises or odours.
Quarterly: Wash filters with mild detergent. Dry completely before reinstalling. Check the outdoor unit for leaf buildup.
Every 2-3 Years: Professional service including coil cleaning, refrigerant check, electrical inspection, and performance testing.
As Needed: Clear outdoor unit surroundings. Ensure good airflow. Check drainage isn't blocked. Remove vegetation growth.
Common Issues & Solutions
Unit Not Cooling Properly
Symptoms: Warm air, reduced airflow, ice on pipes
Solution: Clean filters first. Check that the outdoor unit isn't blocked. If the problem persists, refrigerant may be low—call a technician for leak detection and recharge.
Water Leaking from Indoor Unit
Symptoms: Water dripping from the unit, wet walls, condensation
Solution: The Drainage pipe may be blocked or improperly sloped. Check for algae growth in the drain line. Professional cleaning usually resolves the issue quickly.
Strange Noises
Symptoms: Rattling, buzzing, grinding sounds
Solution: The Outdoor unit may have debris inside or loose components. Indoor fan blades may be dirty. Switch off and call a technician—continuing operation may cause damage.
Split System vs Other Cooling Options
| Feature | Split System | Ducted System | Portable Unit |
|---|---|---|---|
| Installation Cost | $600-$1,200 | $5,000-$15,000+ | $300-$800 |
| Coverage | Single room/area | Whole home | Small room only |
| Energy Efficiency | High (4-5 stars) | Moderate (3-4 stars) | Low (1-2 stars) |
| Noise Level | 19-24dB indoors | 25-35dB | 50-60dB |
| Installation Time | 3-6 hours | 2-5 days | None (plug-in) |
| Aesthetics | Sleek wall unit | Hidden (vents only) | Bulky floor unit |
| Best For | Most homes | Large properties | Renters/temporary |
Why Split Systems Win for Most Homes
Cost-effective: Lower upfront cost than ducted, higher efficiency than portable units
Flexible: Cool only the rooms you use, not wasting energy on empty spaces
Quick installation: Operable the same day without major home renovations
Reliable: Proven technology with 10-15 year lifespan when properly maintained
Ceiling Cassette Split Systems Explained
Cassette split systems mount flush into ceilings with only a decorative grille visible. They distribute air in 4 directions for even coverage across large spaces, making them ideal for commercial applications and open-plan areas.
When to Choose Cassette Systems
Commercial Spaces
Offices, retail stores, cafes, and restaurants benefit from ceiling-mounted units that free wall space for displays and furniture whilst providing powerful cooling across open areas.
Large Open Areas
Showrooms, reception areas, and open-plan offices need multi-directional airflow for even temperature distribution. Cassettes handle larger spaces more efficiently than wall units.
Modern Homes
Properties with suspended ceilings, open-plan living, or architectural ceilings where wall-mounted units would compromise design aesthetics. Premium residential solution.
Limited Wall Space
When walls are fully utilised for windows, artwork, or storage, cassette systems provide powerful climate control without consuming valuable vertical space.
Cassette System Considerations
Higher cost: Installation costs more than standard wall splits due to ceiling work
Ceiling space required: Need adequate roof cavity for unit housing (minimum 300mm)
Structural support: Ceiling joists must support unit weight (20-30kg)
Professional installation essential: Complex installation requires experienced technicians
Shop Split System Air Conditioners at Sparky Direct
Top brands in stock • Competitive trade pricing • Fast Australia-wide delivery
Browse All Split Systems → Get Expert Advice →Split System Air Conditioners Frequently Asked Questions
What is a split system air conditioner?
A split system uses an indoor unit and an outdoor compressor linked by refrigerant lines. With an inverter and reverse-cycle capability, it provides efficient cooling and heating for a single room or zone.
What warranty is typical and how is it managed through Sparky Direct?
Residential split systems commonly include a 5-year manufacturer's warranty. Sparky Direct supplies genuine models and supports warranty claims per the manufacturer's terms
Keep proof of purchase and service records. and contact us if you have any questions.
Do split systems use R32 or other refrigerants?
Most current models use R32 for higher efficiency and lower GWP than older R410A. Handling and charging must be performed by a licensed technician with an ARCtick refrigerant handling licence.
What does split system air conditioner installation typically involve?
Wall bracket, wall penetration, refrigerant lines, condensate drain, outdoor mounting, electrical isolation switch, and commissioning. In Australia, all electrical and refrigerant work must be done by licensed technicians.
All these parts are available at Sparky Direct, Shop our range of accessories online
How much does a Split System Air Conditioner installation usually cost?
Standard back-to-back installs commonly fall in the $600 to $1,200 range, rising with longer pipe runs, difficult access, or switchboard upgrades. Get a written quote that includes materials and labour.
How do I look after a Split System Unit ?
Vacuum filters monthly, wash quarterly, keep the outdoor coil free of debris, and book professional servicing every 2–3 years. Make sure to try and keep insects, mice and geckos out of the PC boards, as they are expensive to replace if they get shorted out of the little gritters.
What happens if water drips from the indoor unit of my split system air conditioner?
It often indicates a blocked or poorly sloped drain. Power off the system and contact a licensed technician for inspection and cleaning.
Sometimes it may be as simple as clearing the drain hole, as a fly or bug may be clogging it.
How does buying from Sparky Direct help?
Sparky Direct stocks trusted brands, offers competitive pricing, and provides product support. We offer fast delivery to over 100 postcodes in Australia. We supply compliant models and documentation, making it easier for your licensed installer to commission and maintain the unit. Save time and money and buy online at Sparky Direct.
