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Thread: Tractor Aircon Help

  1. #21
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    Quote Originally Posted by Davehoos View Post
    last weel on abc regional was a report of government money being handed out to allow uneconomical organisations to convert to amonia to allow these to become economical..$ millions.

    ministry spokesman[minister] said that projects had been rejected as they actually was not in buisness or may not even be built--unlike other grants in the past that had been abandoned after they got grants.

    one company spokeman answered the question they had been counting on this gant--but it was tiny compared to other items they had to find cash for and the freezers already worked.......

    Ammonia is extremely efficient but only suitable for industrial plants and definitely not where the public could be exposed to it, eg. you couldn't use it in supermarkets unless you made it as a stand alone chiller plant and used water as a secondary refrigerant.

    Everything has to be steel, you can't use any copper or brass near it either, so it'd be a huge undertaking, everything would have to be new.

  2. #22
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    Quote Originally Posted by scarry View Post
    And the ACCC did absolutely stuff all about it
    Exactly Paul, and all the did do was prosecute some poor easy target in S.A. after they embarrassed that ****** Combet by listing on their invoices how much carbon levy was applied to each kilo of gas. One of my customers got that Combet joker on the radio on a talk back show and challenged him to justify the levy, Combet "allegedly" replied, oh it's only going to affect a small amount of people when they get their fridges fixed. My customer replied, mate I have more gas in my cigarette lighter than some of those fridges, but what about putting 6x 63 kg bottles of R404a into a low temp rack in a supermarket, the cost has gone from about 12k worth of gas to nearly 48k worth of gas, and you think for one second that the supermarket wont take that into consideration when setting prices. All he could say was he would have to look into it. Just goes to show we have morons making decisions about a subject they know diddly squat about.
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  3. #23
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    Quote Originally Posted by rick130 View Post
    Ammonia is extremely efficient but only suitable for industrial plants and definitely not where the public could be exposed to it, eg. you couldn't use it in supermarkets unless you made it as a stand alone chiller plant and used water as a secondary refrigerant.

    Everything has to be steel, you can't use any copper or brass near it either, so it'd be a huge undertaking, everything would have to be new.
    With the size of the shopping centres around here,i can't work out why they don't have an ammonia chiller in the far corner of the carpark.

    Many of the latest very large refrig plants use an ammonia chiller chilling glycol at -7degrees for everything except the freezers.Freezers are DX ammonia.
    Warmer glycol is pumped through the coils using valves with actuators(similar to valves used in chilled water systems)for defrosting.

    The new Primo plant at Wacol was done this way.
    Paul

    D2,D2,D2a,D4,'09 Defender 110(sons), all moved on.

    '56 S1,been in the family since...'56
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  4. #24
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    Quote Originally Posted by ezyrama View Post
    Exactly Paul, and all the did do was prosecute some poor easy target in S.A. after they embarrassed that ****** Combet by listing on their invoices how much carbon levy was applied to each kilo of gas. One of my customers got that Combet joker on the radio on a talk back show and challenged him to justify the levy, Combet "allegedly" replied, oh it's only going to affect a small amount of people when they get their fridges fixed. My customer replied, mate I have more gas in my cigarette lighter than some of those fridges, but what about putting 6x 63 kg bottles of R404a into a low temp rack in a supermarket, the cost has gone from about 12k worth of gas to nearly 48k worth of gas, and you think for one second that the supermarket wont take that into consideration when setting prices. All he could say was he would have to look into it. Just goes to show we have morons making decisions about a subject they know diddly squat about.
    But SHE,the PM said when questioned about the massive cost increases of refrigerants,it is only a one of cost,and also this is a good example why we have increased the family subsidy(or something along those lines)

    Just shows how out of touch they are with what is going on,particularly in small business,the local butcher,independent foodstore,shopping centre owners,etc,etc,etc.
    Paul

    D2,D2,D2a,D4,'09 Defender 110(sons), all moved on.

    '56 S1,been in the family since...'56
    Comes out of hibernation every few months for a run

  5. #25
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    Ressurecting this thread, the old Blissfield (york Style) compressor clutch died at the end of last summer and although I replaced the bearings it looks like the gas has leaked out. The base of the compressor is also stained with oil so it may be the base gasket on the compressor is leaking as well and the aircon bloke told me that these seals are unobtainable.

    I am off to the US and have the opportunity to pick up a compressor for $200 - 300 US which is considerably better than the $800 - 1000 I have been quoted here. The question is which compressor to get?

    Sanden 5XX ?
    Sanden 7XX ?

    Also is it worth locating a compressor with o ring fittings or am I better to get new ends put on my hoses to suit?

    Regards,

    Tote
    Go home, your igloo is on fire....
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  6. #26
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    Can someone advise what sort of connectors the ones on the hoses are? I'm assuming O Ring?



    The compressor in position



    Regards,
    Tote
    Go home, your igloo is on fire....
    2014 Chile Red L494 RRS Autobiography Supercharged
    MY2016 Aintree Green Defender 130 Cab Chassis
    1957 Series 1 107 ute - In pieces

    Assorted Falcons and Jeeps.....

  7. #27
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    Probably a round nylon ring that fits in a groove on the compresser.

    There are different sizes,available from Actrol parts,Heatcraft,etc.

    Oil them before fitting and oil the back of the rotalock nut,so it turns easily,if you know what i mean.
    Last edited by scarry; 23rd August 2015 at 06:19 PM. Reason: More info
    Paul

    D2,D2,D2a,D4,'09 Defender 110(sons), all moved on.

    '56 S1,been in the family since...'56
    Comes out of hibernation every few months for a run

  8. #28
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    To tidy up this thread, I got the Sanden 8xx compressor and had a local engineering shop make up some new mounts, gassed it up and it was working well until I checked it today, no cold air. Rats have eaten a hole in one of the hoses, I hope the buggers choked on the gas........

    Oh well another 3 hour drive to town to get the hose fixed and regassed

    Regards,
    Tote
    Go home, your igloo is on fire....
    2014 Chile Red L494 RRS Autobiography Supercharged
    MY2016 Aintree Green Defender 130 Cab Chassis
    1957 Series 1 107 ute - In pieces

    Assorted Falcons and Jeeps.....

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