Shop Efficient System 3 Aircons

Discover our exceptional collection of inverter System 3 aircon units, designed to provide powerful and efficient cooling for your home or office. With advanced inverter technology, these systems offer precise temperature control, ensuring comfort in every room. Whether you need to cool a large living room or multiple rooms, Gain City's inverter System 3 aircon units from Gain City offer a perfect balance of performance and energy efficiency.

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  1. PANASONIC SYSTEM 3 AIRCON - WIFI CU-3XU28YBZ/3XCS-XU12BKZW
    PANASONIC SYSTEM 3 AIRCON - WIFI CU-3XU28YBZ/3XCS-XU12BKZW

    CU-3XU28YBZ/3XCS-XU12BKZW

    3X12000 BTU
    S$3,769.00 U.P. S$4,522.80 $50 OFF WITH EVERY $400 SPENT
    Add to Wish List
  2. PANASONIC SYSTEM 3 AIRCON - WIFI CU-3XU28YBZ/1XCS-XU9BKZW/1XCS-XU12BKZW/1XCS-XU24BKZW
    PANASONIC SYSTEM 3 AIRCON - WIFI CU-3XU28YBZ/1XCS-XU9BKZW/1XCS-XU12BKZW/1XCS-XU24BKZW

    CU-3XU28YBZ/1XCS-XU9BKZW/1XCS-XU12BKZW/1XCS-XU24BKZW

    1X9000-1X12000-1X24000 BTU
    S$3,819.00 U.P. S$4,582.80 $50 OFF WITH EVERY $400 SPENT
    Add to Wish List
  3. PANASONIC SYSTEM 3 AIRCON - WIFI CU-3XU28YBZ/1XCS-XU9BKZW/2XCS-XU12BKZW
    PANASONIC SYSTEM 3 AIRCON - WIFI CU-3XU28YBZ/1XCS-XU9BKZW/2XCS-XU12BKZW

    CU-3XU28YBZ/1XCS-XU9BKZW/2XCS-XU12BKZW

    1X9000-2X12000 BTU
    S$3,719.00 U.P. S$4,462.80 $50 OFF WITH EVERY $400 SPENT
    Add to Wish List
  4. PANASONIC SYSTEM 3 AIRCON - WIFI CU-3XU28YBZ/2XCS-XU9BKZW/1XCS-XU24BKZW
    PANASONIC SYSTEM 3 AIRCON - WIFI CU-3XU28YBZ/2XCS-XU9BKZW/1XCS-XU24BKZW

    CU-3XU28YBZ/2XCS-XU9BKZW/1XCS-XU24BKZW

    2X9000-1X24000 BTU
    S$3,769.00 U.P. S$4,522.80 $50 OFF WITH EVERY $400 SPENT
    Add to Wish List
  5. PANASONIC SYSTEM 3 AIRCON - WIFI CU-3XU28YBZ/2XCS-XU9BKZW/1XCS-XU12BKZW
    PANASONIC SYSTEM 3 AIRCON - WIFI CU-3XU28YBZ/2XCS-XU9BKZW/1XCS-XU12BKZW

    CU-3XU28YBZ/2XCS-XU9BKZW/1XCS-XU12BKZW

    2X9000-1X12000 BTU
    S$3,679.00 U.P. S$4,414.80 $50 OFF WITH EVERY $400 SPENT
    Add to Wish List
  6. PANASONIC SYSTEM 3 AIRCON - WIFI CU-3XU28YBZ/3XCS-XU9BKZW
    PANASONIC SYSTEM 3 AIRCON - WIFI CU-3XU28YBZ/3XCS-XU9BKZW

    CU-3XU28YBZ/3XCS-XU9BKZW

    3X9000 BTU
    Special Online Promotion from September 18, 2025 12:00 AM to September 28, 2025 11:59 PM
    S$3,229.00 U.P. S$4,354.80 Until September 28, 2025 11:59 PM
    Add to Wish List
  7. MITSUBISHI HEAVY SYS 3 AIRCON DXM40YS-W/2XDXK13YYS-W8/1XDXK24YYS-W8
    MITSUBISHI HEAVY SYS 3 AIRCON DXM40YS-W/2XDXK13YYS-W8/1XDXK24YYS-W8

    DXM40YS-W/2XDXK13YYS-W8/1XDXK24YYS-W8

    2X12000 & 1X24000 BTU
    S$4,479.00 U.P. S$5,374.80 $50 OFF WITH EVERY $400 SPENT
    Add to Wish List
  8. MITSUBISHI HEAVY SYS 3 AIRCON DXM40YS-W/2XDXK13YYS-W8/1XDXK18YYS-W8
    MITSUBISHI HEAVY SYS 3 AIRCON DXM40YS-W/2XDXK13YYS-W8/1XDXK18YYS-W8

    DXM40YS-W/2XDXK13YYS-W8/1XDXK18YYS-W8

    2X12000 & 1X18000 BTU
    S$4,399.00 U.P. S$5,278.80 $50 OFF WITH EVERY $400 SPENT
    Add to Wish List
  9. MITSUBISHI HEAVY SYS 3 AIRCON DXM40YS-W/1XDXK13YYS-W8/2XDXK18YYS-W8
    MITSUBISHI HEAVY SYS 3 AIRCON DXM40YS-W/1XDXK13YYS-W8/2XDXK18YYS-W8

    DXM40YS-W/1XDXK13YYS-W8/2XDXK18YYS-W8

    1X12000 & 2X18000 BTU
    S$4,539.00 U.P. S$5,446.80 $50 OFF WITH EVERY $400 SPENT
    Add to Wish List
  10. MITSUBISHI HEAVY SYS 3 AIRCON DXM40YS-W/3XDXK13YYS-W8
    MITSUBISHI HEAVY SYS 3 AIRCON DXM40YS-W/3XDXK13YYS-W8

    DXM40YS-W/3XDXK13YYS-W8

    3X12000 BTU
    S$4,259.00 U.P. S$5,110.80 $50 OFF WITH EVERY $400 SPENT
    Add to Wish List
  11. MITSUBISHI HEAVY SYS 3 AIRCON DXM30YS-W/2XDXK13YYS-W8/1XDXK18YYS-W8
    MITSUBISHI HEAVY SYS 3 AIRCON DXM30YS-W/2XDXK13YYS-W8/1XDXK18YYS-W8

    DXM30YS-W/2XDXK13YYS-W8/1XDXK18YYS-W8

    2X12000 & 18000 BTU

    Product Description

    The Mitsubishi Heavy System 3 Aircon offers a robust cooling solution with its high efficiency and quiet operation. Designed for multi-room setups, it ensures consistent comfort and energy savings, making it an ideal choice for modern homes.

    Key Features

    • Efficient Cooling: Delivers a powerful cooling capacity of up to 9.0kW, perfect for larger spaces.
    • Energy Saving: Features a high COP of 5.00 W/W, ensuring lower energy consumption.
    • Quiet Operation: Operates at a low sound pressure level of 19dB(A) for a peaceful environment.
    • Flexible Installation: Supports up to 3 indoor units with a maximum pipe length of 40m.
    • Advanced Refrigerant: Utilizes R32 refrigerant for eco-friendly performance.
    • Compact Design: Space-saving dimensions for easy installation in various settings.

    Product Specifications

    • Cooling Capacity: 6.0kW (1.1-9.0kW range)
    • Power Consumption: 1.2kW
    • COP: 5.00 W/W
    • Sound Pressure: 50dB(A)
    • Exterior Dimensions: 640x850x290mm (HeightxWidthxDepth)
    • Weight: 47.5kg
    • Connectable IDU: 1-3 units
    • Refrigerant Type: R32
    • Max Pipe Length: Total 40m/Each room 25m
    • Max Height Difference: ODU-IDU 15m/IDU-IDU 15m
    • Pipe Size (O.D): Liquid: 06.35x3 (1/4")mm, Gas: 09.52x3 (3/8")mm

    Ideal For

    This Mitsubishi Heavy System 3 Aircon is ideal for homeowners seeking efficient cooling solutions for multiple rooms. Perfect for families or shared living spaces, ensuring comfort and energy savings.

    In the Box

    • Outdoor Unit: DXM30YS-W
    • Indoor Units: 2x DXK13YYS-W8
    • Indoor Unit: 1x DXK18YYS-W8
    S$4,029.00 U.P. S$4,834.80 $50 OFF WITH EVERY $400 SPENT
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  12. MITSUBISHI HEAVY SYS 3 AIRCON DXM30YS-W/3XDXK13YYS-W8
    MITSUBISHI HEAVY SYS 3 AIRCON DXM30YS-W/3XDXK13YYS-W8

    DXM30YS-W/3XDXK13YYS-W8

    3X12000 BTU

    Product Description

    The Mitsubishi Heavy triple-split air conditioner model DXM30YS-W paired with three DXK13YYS-W8 indoor units delivers efficient multi-room cooling with quiet operation, smart Wi‑Fi control, and strong airflow for comfort and energy savings.

    Key Features

    • Wi-Fi Built-In: App-based remote control for on-the-go convenience.
    • 3D Auto/Quiet Air: Even air distribution with low noise levels.
    • Long Reach Higher Airflow: Powerful throw suitable for larger rooms.
    • 24-hr Ion Generation: Continuous ionization for fresher indoor air.
    • Energy Efficient: Up to 5-tick NEA rating for reduced power consumption.
    • Durable Design: Robust construction for long-term reliability.

    Product Specifications

    • System Type: Multi-split (1 outdoor, 3 indoor)
    • Cooling Capacity: 6.0 kW (1.1–9.0 kW)
    • Power Consumption: 1.2 kW
    • COP: 5.00 W/W
    • Outdoor Unit Dimensions: 640 × 850 × 290 mm
    • Outdoor Unit Weight: 47.5 kg
    • Connectable Indoor Units: 1–3
    • Max Pipe Length: 40/25 m
    • Max Height Difference: 15/15 m
    • Refrigerant: R32
    • Piping (Liquid/Gas): 6.35 mm (1/4”), 9.52 mm (3/8”)
    • Indoor Unit Cooling Capacity: 3.5 kW (per unit)
    • Indoor Unit Sound Pressure: HI 47 / M 35 / L 30 / ULO 19 dB(A)
    • Indoor Unit Airflow: HI 14.1 / M 9.9 / L 8.0 / ULO 4.3 m³/min
    • Fan Speed: 4 steps
    • Indoor Unit Dimensions: 290 × 870 × 230 mm
    • Indoor Unit Net Weight: 10.0 kg

    Ideal For

    Best for multi-room homes that need quiet, energy‑efficient cooling across living rooms and bedrooms, with convenient smartphone control.

    In the Box

    • Outdoor Unit: DXM30YS-W
    • Indoor Units: 3 × DXK13YYS-W8
    • Remote controls
    • Installation manual
    • Warranty card
    S$3,889.00 U.P. S$4,666.80 $50 OFF WITH EVERY $400 SPENT
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  13. DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/3XCTKM50ZVMG
    DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/3XCTKM50ZVMG

    MKM85ZVMG/3XCTKM50ZVMG

    3X18000 BTU
    S$4,179.00 U.P. S$5,014.80
    Add to Wish List
  14. DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/1XCTKM35ZVMG/2XCTKM60ZVMG
    DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/1XCTKM35ZVMG/2XCTKM60ZVMG

    MKM85ZVMG/1XCTKM35ZVMG/2XCTKM60ZVMG

    1X12000 & 2X22000 BTU
    S$4,209.00 U.P. S$5,050.80
    Add to Wish List
  15. DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/1XCTKM35ZVMG/2XCTKM50ZVMG
    DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/1XCTKM35ZVMG/2XCTKM50ZVMG

    MKM85ZVMG/1XCTKM35ZVMG/2XCTKM50ZVMG

    1X12000 & 2X18000 BTU
    S$4,099.00 U.P. S$4,918.80
    Add to Wish List
  16. DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/1XCTKM35ZVMG/1XCTKM60ZVMG/1XCTKM71ZVMG
    DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/1XCTKM35ZVMG/1XCTKM60ZVMG/1XCTKM71ZVMG

    MKM85ZVMG/1XCTKM35ZVMG/1XCTKM60ZVMG/1XCTKM71ZVMG

    1X12000, 1X22000 & 1X24000 BTU
    S$4,259.00 U.P. S$5,110.80
    Add to Wish List
  17. DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/1XCTKM35ZVMG/1XCTKM50ZVMG/1XCTKM71ZVMG
    DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/1XCTKM35ZVMG/1XCTKM50ZVMG/1XCTKM71ZVMG

    MKM85ZVMG/1XCTKM35ZVMG/1XCTKM50ZVMG/1XCTKM71ZVMG

    1X12000, 1X18000 & 1X24000 BTU
    S$4,199.00 U.P. S$5,038.80
    Add to Wish List
  18. DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/1XCTKM35ZVMG/1XCTKM50ZVMG/1XCTKM60ZVMG
    DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/1XCTKM35ZVMG/1XCTKM50ZVMG/1XCTKM60ZVMG

    MKM85ZVMG/1XCTKM35ZVMG/1XCTKM50ZVMG/1XCTKM60ZVMG

    1X12000, 1X18000 & 1X22000 BTU
    S$4,159.00 U.P. S$4,990.80
    Add to Wish List
  19. DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/2XCTKM35ZVMG/1XCTKM71ZVMG
    DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/2XCTKM35ZVMG/1XCTKM71ZVMG

    MKM85ZVMG/2XCTKM35ZVMG/1XCTKM71ZVMG

    2X12000 & 1X24000 BTU
    S$4,119.00 U.P. S$4,942.80
    Add to Wish List
  20. DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/2XCTKM35ZVMG/1XCTKM60ZVMG
    DAIKIN SYSTEM 3 AIRCON - WIFI MKM85ZVMG/2XCTKM35ZVMG/1XCTKM60ZVMG

    MKM85ZVMG/2XCTKM35ZVMG/1XCTKM60ZVMG

    2X12000 & 1X22000 BTU
    S$4,079.00 U.P. S$4,894.80
    Add to Wish List

Items 1-20 of 279

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Benefits and Features of System 3 Aircon

Modern System 3 air conditioners are equipped with features designed to maximise comfort, efficiency, and flexibility, including:

  • Inverter technology: Adjusts cooling output based on the room’s temperature, providing consistent cooling while reducing energy consumption.
  • High BTU rating: With a high BTU capacity, these System 3 aircon units are perfect for cooling larger rooms or open spaces efficiently.
  • Programmable timers: Set cooling schedules on your System 3 aircon units to match your daily routine, optimising energy usage while ensuring a comfortable environment.
  • Energy efficiency: Our inverter technology adjusts the compressor speed, resulting in reduced energy consumption and lower electricity bills.

Why Choose Gain City for Your System 3 Aircon?

With over 40 years of experience, Gain City is Singapore’s leading provider of System 3 air conditioning solutions. 

  • Extensive Selection of Top Brands: Gain City offers a wide range of System 3 aircons from trusted brands like Mitsubishi Electric and Daikin, ensuring you find the perfect fit for your home or office, no matter your cooling requirements or budget.
  • Competitive Prices: Benefit from some of the best prices on System 3 aircons in Singapore, ensuring you get maximum value without compromising on performance or energy efficiency.
  • Expert Guidance: Our knowledgeable team is ready to help you select the ideal System 3 air conditioner, taking into account room size, energy efficiency, and cooling preferences.

 

Installation Guide & Maintenance Tips for Your System 3 Aircon

Professional Installation Services

Gain City provides expert installation services for your System 3 aircon, ensuring that it’s set up correctly for optimal performance and energy efficiency. Our certified technicians use high-quality materials, such as durable copper piping and insulation, to ensure long-term reliability and safety. 

Warranty and Aftercare

Gain City offers comprehensive warranty plans for System 3 aircons, covering mechanical and electrical defects for up to 8 years. These warranties also include protection against accidental damage and power surges. 

Maintenance Tips

To keep your System 3 aircon performing efficiently, schedule regular servicing at least every three months. Cleaning the filters, checking for leaks, and ensuring proper airflow are essential tasks to maintain optimal performance. 

Frequently Asked Questions of System 3 Aircon

What system air conditioner should I choose for my house?

The right aircon system depends on the number of rooms you need to cool and their sizes. A System 3 aircon is ideal for homes with three rooms, providing efficient cooling for medium to large spaces. On the other hand, System 2 aircons are better for homes with two rooms. 

What is the average price of a System 3 aircon in Singapore?

The average price of a System 3 air conditioner at Gain City starts from $3.5k and can vary depending on the brand, features, and installation options.

How much space can a System 3 aircon cool?

A System 3 aircon can efficiently cool three rooms at the same time. The exact space it can cool depends on the BTU rating of the units and the size of each room, making it ideal for medium to large homes or offices.

How often should I service my System 3 aircon?

It is recommended to service your aircon every three months to maintain its performance, energy efficiency, and longevity. Regular maintenance also helps prevent breakdowns and ensures smooth operation.