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Discuss How not to install and A/C UNIT in the Electrical Forum area at ElectriciansForums.net

Pete999

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plugsandsparks

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Actually its not a bad effort considering its DIY.

Bad bits: Extra piping means unit will work harder (less efficient)
Outdoor unit too low, most likely get clogged up with crap after first year.
Wiring, well i assume its America so - no comment... lol
 
T

Toneyz

So what is wrong with it Pete? interested what you say is wrong with it apart from being American.
 

TJ Anderson

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Agreed. Apart from the excess suction and discharge pipework, it seemed fine. A lot neater than a lot of the splits I see around and about. I guess the evaporator and lines are pre vacuumed and the refrigerant in condensor pumped down ready. Just connect the lines and let it go!
 
D

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Could you use car refrigerant to charge or top up the system?
 

TJ Anderson

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Could you use car refrigerant to charge or top up the system?
Cars are R134a generally. Splits are 410a or R32 more popular now as lower gwp. It's all very expensive now though!!
 

Pete999

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So what is wrong with it Pete? interested what you say is wrong with it apart from being American.
So what is wrong with it Pete? interested what you say is wrong with it apart from being American.
Never actually said it was wrong, just not the way to do it great big coil of suction and discharge pipework coiled up and shoved behind the Condensing unit, not really a DIY job is it? dangerous Electricity, and gases to deal with, job for a HVAC Mech in my books, just saying.
 
Bottom line is , if you ‘the home owner’ can buy it from the shops then in theory you should be able to install it. Using the supplied manufacture instructions and a certain degree of decent DIYer ability.
I never understood people saying ‘oh you shouldn’t do this or can’t do that’ when this stuff is readily available to purchase in DIY shops or DIY online websites.

If industries want home owners to not fit it then stop selling it to them
 
I wish my missus was as useful at DIY.
I would be sending mine out to do 95% of my jobs if this were the case :D
 

Marvo

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Could you use car refrigerant to charge or top up the system?
Cars are R134a generally. Splits are 410a or R32 more popular now as lower gwp. It's all very expensive now though!!
I think the Yanks are now using the new generation R1234yf which is a semi flammable floropropene gas in their auto air conditioners. Because it's semi flammable this new gas will only be available for purchase if you have an FGas license.
 

plugsandsparks

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yes, its all getting difficult in the world of a/c. Good old R410 is now super expensive, R32 is so flammable that the MI's to install it have to be read very carefully wrt volume of gas in system vs volume of rooms(s) being served. I was going to install r32 into a small server room but when doing the calcs i would have needed both detection and ventilation systems installed which would have added considerably to the cost. Pressures are going higher yet the method of connection, i.e. hand flaring has not changed, i see many more leaks in the future.
 
My first thoughts... after the first 7 seconds... that voice !! Could you imagine having that 24/7 ??
 
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