I live in Sydney, have many years of air conditioning and refrigeration experience. See a lot of friends have a lot of questions about the installation of air conditioning, so give you some advice, I hope it will help.
Some basic knowledge of air conditioning installation:
1. So-called basic installation: finger back to back installation. That is, the external machine installed on the back of the internal machine, connected to copper tube within 3m, single-story house, not including pull electricity. In Sydney, the general offer for basic installation is between 400 and 500.
2. Extra charge: copper pipe is too long, about 40 yuan per meter. If your air-conditioning is installed on the second floor, six meters from the upper floor to the ground, the extra three-meter copper tube charges an extra 120 yuan 150 yuan.
If you need to install the external air conditioner on the bracket, add 50 yuan 80 yuan.
3. Cost of pull-up: Australia requires 5.0KW (so-called two) or more air conditioners to have a separate power supply, depending on the distance of the external machine from the box and the ease of pulling the wire. Generally House is easy and townhouse,unit is troublesome, the charge for pulling wire is between 100 and 200, depending on how much time it takes.
To sum up, if you want to install a 7KW air-conditioning on the back-to-back of the floor, then the charge is 450,150,600 yuan, if the installation of the 3.5kw air-conditioning on the second floor (not pulling power), then 400,150,550.
4. The question of having a licence or not. According to Australian law, air conditioning installation and maintenance must be licensed technicians or companies, such as looking for unlicensed personnel to install, in the event of an accident, the insurance company is not responsible, and in the event of air conditioning failure, the company does not give warranty. General unlicensed basic installation charge 200 / 250 (if this price, 100% is unlicensed). Given the fact that an air conditioner is more than 700 in Australia, it is not cost-effective to save more than $200 to find an unlicensed air-conditioner, especially a high-power air-conditioner. The general installer should provide you with his contractor license, which can be found on fairtrading`s website. I also saw that some friends said that air conditioning installation should be a plumber plate, this is wrong. Air conditioning and refrigeration is a special aircon & refrigeration license, work involving the treatment of Freon (so-called snow species), which is responsible for the destruction of ozone and global warming. Therefore, the installation and maintenance personnel must also hold the refrigerant handling license.
5. Air conditioning brand problem: one cent price one cent goods, put the principle that the world is all right. Best: big gold air conditioning, very few people use, especially household, too expensive, and only the big gold Dealer has to sell, such as good guys and other home appliances stores do not.
Mainstream brand fujitsu, Panasonic, Mitsubishi heavy Industry, Mitsubishi Electronics. The above brands have five-year warranty. My experience is very good, the failure rate is low, the noise is also low. Mid-range brand: Samsung, LG,kevenator, also has a five-year warranty, with my experience and OK, is only a little rough workmanship, but with my installation experience, LG`s failure rate is high. Domestic brands such as Meidi, Haier, Zhigao and so on in Australia, can be very cheap, the key to see its manufacturer warranty is a few years, two look at their own luck. Think twice if you only have a two-year warranty. But for installation, whether the machine is good or bad, the installation price is the same.
6. The problem of pulling electricity: Mitsubishi, fujitsu`s machine, no matter how big it is, should be supplied separately (even by one), otherwise the manufacturer will not guarantee it. The rest of the brands, typically one, one and a half, are allowed to power from existing sockets. But more than two (5KW) must be separately supplied. For unit, apartment residents to pull power can be cumbersome, such as a small machine installed in the bedroom, consider a machine that can power from an existing socket. But there are also cases of such treatment, when the air-conditioning problem, then call the electrician to pull the electricity, and then ask the manufacturer to repair. No problem with this, you should pay for a five-year warranty for any machine that has a brand name. A licensed installer or company usually calls an electrician to pick up the electricity in case of a pull-up problem, but you have to ask him to provide a bill to show that the box work is a licensed electrician`s operation.
7. Air conditioning, the timing of air conditioning: it is usually winter, many brands have cash back promotion activities, installation costs can also be cheaper. You can also buy machines and install them from an air conditioner installer or company, which makes it cheaper.
8. In addition to the question of how much power it takes to buy air-conditioners, many people are troubled by the problem. The mall`s salesman often talks nonsense.
Let`s start with some basic common sense.
1. Cooling power and electric power: one of the machines we often refer to is electrical power. 1 horsepower=735w.
And now the energy consumption label on the internal Kw number refers to the cooling power. To put it simply, 0: (2.6kw=1.25, 3.5kw=1.5, 5kw=2, 7.1kw=2.75-3, etc.)
2. What size of machine will your house need: refrigeration area required = cooling power / 135w. For example, a two-piece machine, the refrigeration area = 5000 m 135 square meters. If your room is less than 38, two machines will suffice. If your bedroom is 15 square meters, then 1.25 machines will suffice, 2, 600, 135, 19 square meters. This is just a general reference. If your room is on the top floor, or if your window is sunrise, you need a larger machine, as in the example above, I would recommend 1.5 machines.
