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Thread: AirCONditioner installation quotes

  1. #1
    Senior Member CafeLotta's Avatar
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    AirCONditioner installation quotes

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Just a warning on Airconditioning quotes. With summer coming, some people decide that they'd better hurry up and install some aircon now. My mother-in-law was one of these and I was given the pleasure of meeting with the people doing the quotes. Ended up going with a guy who was 30 years in the business, multiple employees and vehicles etc. and seemed honest and knowledgable.

    Here's the rub. Mother-in-laws house is an older house. He looked at the power board/fuse box and said it would be OK for the new 20A circuit. (Did I get it in writing, no) He wrote out his quote for supply/install (included running the 20A line to exist. fuse box) and then requested a percentage payment up front. Was told it should be around a 4hr job. Usual story, changed the booked installation day on the night before. On the new date they came and installed the mechanical side but after 3 hrs said the Electrician couldn't make it that day. He came the next day and then announced a new switchboard was required. Additional $1000 quoted!

    The warning is if you go down this road of getting an airCON quote, get verification from either their or your Electrician that additional work doesn't isn't required before you've paid money in good faith and have aircon hanging off your walls with no juice. In our case you'd assume that the man doing quotes who ran his own company and had 30 years experience and was on an advisory board for the Government, would know when the Power Board/Fuse box was likely to need replacing or at least inform you that it might. What little trust I had left in Tradesmen has been eroded even further to virtually nil.

    If you're in Melbourne and want to know who not to use, PM me.
    Last edited by CafeLotta; 29th November 2018 at 06:12 PM.

  2. #2
    Senior Member Jackster's Avatar
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    Splits are not that hard to bang in yourself, if so inclined... Certainly should be considered if you are talking about a non back-back install.
    I'm currently chasing a Daikin cassette to run off the 10kw outdoor unit. I'm told it can't be done... Not sure myself
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  3. #3
    Coffee Nut fg1972's Avatar
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    DIY maybe save a little on labor by mounting, running pipes and cables yourself but you’ll still need to involve a licensed installer to connect it up which is usually wired back to the switch board on a dedicated circuit. As per the OP, this is where the issues started as the board and or mains was not able to take an additional 20amp circuit. Also for warranty purposes, you’d probably need official sign off.

  4. #4
    Senior Member Lyrebird's Avatar
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    OK, colour me ignorant but how do you perform a DIY installation unless you happen to own a vacuum pump (which I do BTW but that's not the point, most people don't).
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  5. #5
    Senior Member Jackster's Avatar
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    I do also own a vacuum pump.
    I have heard of guys flushing with the refrigerant, and then shutting the tap. Not the correct way, but plenty of times it has been done.
    Like all diy, if you are going to do it, invest in some tools.
    And only go as far as you are comfortable.
    If you can run the cables, mount the switches, and leave the connections to the sparky.
    And if you can mount the indoor and outdoor, run the piping and the control wiring, and get the fridgey to evacuate it for you, it's still diy.

  6. #6
    Senior Member Lyrebird's Avatar
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    Quote Originally Posted by Jackster View Post
    And if you can mount the indoor and outdoor, run the piping and the control wiring, and get the fridgey to evacuate it for you, it's still diy.
    OK, that's not what I thought you meant by DIY.
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  7. #7
    Senior Member Jackster's Avatar
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    That's not really my idea of diy either. But as you say, you can't do a good job without a vac pump and gauges. Probably not worth buying a set for just one install. But can't tell people to break the law either.

  8. #8
    Senior Member Rocky's Avatar
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    Son had two small splits installed recently. Straight through the brick/plaster wall behind the compressor into adjacent bedrooms.
    The install cost considerably more than the units (Fujitsu)
    I was a bit horrified at the installation cost but after watching the tradies do it I decided it was worth every cent.
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  9. #9
    Senior Member Lyrebird's Avatar
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    Quote Originally Posted by Rocky View Post
    Son had two small splits installed recently.
    Generally a much better idea than one large one, despite the extra installation cost. COP is better for the small units because the exchangers on the larger units are undersized. We are building a house in Beechworth and the entire heating and cooling will be handled by two 2.5 kW systems (and an air exchanger), the quoted COP of the units is ~5.
    Dimal likes this.



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