Costco Frequently Asked Questions

Air conditioning can help to regulate the temperature of your living space. Creating the perfect balance of heating or cooling for any room in your home. Split air conditioning units are typically made up for two parts, an indoor unit and an outdoor unit. The indoor unit provides hot or cold air, which can be delivered by a wall mount, floor mount, ducted or cassette unit.

A Multi-split air conditioner is very similar to a split air conditioning unit. The Multi-split allows multiple indoor units to be supplied by a single outdoor unit. Perfect for a home with more than one room that requires heating or cooling.

Air conditioning units are air-to-air heat pumps, which means the refrigerant cycle in the indoor and outdoor unit can be reversed to provide heating or cooling.

Our Premium range achieve energy efficiency ratings of A+++.
While high in performance, Mitsubishi Electric air conditioning units are low in power consumption, due to leading edge inverter technology. As well as controlling temperatures, they help to control costs as more people spend time working and relaxing at home.

Approved Mitsubishi Electric, Diamond Quality Partners can provide warranty for up to 10 years. To ensure this warranty is upheld, a minimum of 1x servicing visit per year after the first 12 months of installation. Service and maintenance visits must be undertaken by a Mitsubishi Electric Diamond Quality Partner.

Outdoor units must be located on an outside wall of a house. This can be floor mounted at low level, or wall mounted at high level.

All indoor units require condensation to be removed from the indoor unit and discharged to an outside drain. This can be done by a gravity feed drain off pipe or if the pipework rises vertically, a condensate pump will be required the move the condensate up and through the drain pipework.

The outdoor unit will be visible on the chosen outside wall of your property, other visible items will be the rotary isolator, insulated pipework or pipework trunking.

Electrical work should be performed by a qualified, experienced electrician, according to the installation manual. Be sure to use an exclusive circuit. Do not connect other electrical appliances to the circuit. If the capacity of the power circuit is insufficient or there is incomplete electrical work, it could result in a fire or an electric shock.Electrical work should be performed by a qualified, experienced electrician, according to the installation manual. Be sure to use an exclusive circuit. Do not connect other electrical appliances to the circuit. If the capacity of the power circuit is insufficient or there is incomplete electrical work, it could result in a fire or an electric shock.

Mandatory power supply requirements:

• Earth Leakage breaker
• Consumer unit (commonly known as fuse board or electrical fuse box) with available capacity.
• Outdoor IP65/66 rated 4-pole Rotary Isolator (Amperage requirement differs per outdoor model). 
• Proof of Electrical installation certification will be required before attendance to site. 

Air pollution in the home can be 2-5 times higher than outdoors. Our innovative Plasma Quad Technology is built into the Premium models, provides highly effective filtration performance against common pollutants, neutralising airborne bacteria/virus/allergens/ mould/dust/PM2.5.

The Plasma Quad technology inhibits SARS-CoV-2 by 99.8%*

* Derived from and subject to test results, for and on behalf of Mitsubishi Electric, conducted at the Microbial Testing Laboratory, Japan Textile Quality, and Technology Center, Kobe, Japan.