I've been out of air conditioning for about 6 years, swapped my overalls for a suit
R22 was the refrigerant that most used up to about the early 90's and I worked for York Refrigeration, so got the Luxaire ones cheap.
I did a few installs but the callbacks for lack of performance in the Winter were annoying as it was not the installers fault that R22 does not like temperatures below about 10-14 degrees outside. In the SI they used to put the outdoor unit so the sun warmed it up...
R410a changed that and I installed dozens of Mitsubishi with no call backs, saying that did a proper job with nitrogen pressure testing and a vacuum pump with vacuum guage unlike the cowboy electricans out there( air reacts with refrigerant and the oil goes acidic over time)
don't forget to ask your installed if he has put it on a separate circuit or just spurred it off a power point, get a Compliance Certificate, and the warranty card completed.
I put a Mitsubishi in my house last year and even fitted the WiFi controller to it so I could turn it on and off from work.
Never use it.
I leave it on all day ( at the moment) at about 18 degrees and turn it up when I get home.
Trouble with Sales People is they sell the sizzle and the trady has to deliver the sausage. If you want to know how anything ask the Techy guy not the Sales guy.
DeMyer's Laws - an argument that consists primarily of rambling quotes isn't worth bothering with.
How To Buy Weed.
The following is based on observing a tinny house not far from my workshop that I travel past multiple times a day.
It takes a minimum of two people to buy weed & at least one must have facial hair, not a proper beard, just three or four days growth, as this prevents anyone from properly identifying him, kind of like a cloak of invisibility (more on this later)
The mode of transport must be a tired Japanese car fron the early '90's often with feeble attempts at customisation, say a boot spoiler off a different coloured car, or a front air dam, still in unpainted fibreglass. The really flash fullas may have a VN or VP Commodore, this should be fitted with cheap chromies, but only three of them, with one steel wheel fitted.
The vehicle should be driven on the wrong side of the road when turning right to enter the street of the tinny house, & if by chance somebody should be approaching the intersection from the opposite direction doing everything correctly, they should be shown the finger for being on the racing line.
When parking, the amateurs park two houses up from the tinny house & walk down, as that won't look dodgy at all & that's what we all do when we visit a mate isint it?
The more advanced ones park on the other side of the road, facing the way they came, presumably for faster get away in event that the tinny house is busted while they are doing trade.
One person, most often the driver must remain in the car, usually with the engine switched off, just looking cool & chillaxed, head upright & tilted a little to the right, sort of looking at the r/f a pillar, not making eye contact with passers buy, either on foot or in vehicles.
The passenger, if wearing hi vis, should in full view of any local tradesman parked watching, shuffle down in his seat, slide the hi vis off over his head & install a black loose fitting woollen cardigan.
This of course makes him appear far less suspicious & virtually impossible to describe to authorities, a kind of a cloak of invisibility.
It is then important to saunter down the road as if he has all day to be absolutely nowhere in particular, & when in approximately the middle of the driveway of said tinny house, take a sharp turn towards the house & pick up the pace, so as to spend minimum time in view on the premises.
Upon return to the vehicle, (usually under three minutes) both hands must be obviously visibly empty swinging by their sides.
A short discussion usually ensues & the vehicle leaves the street, slower than it arrived.
Somehow this throws everyone off the scent & nobody suspects a thing.
I find it hilarious that they all do the same thing & most of them won't even know each other.
R22 is best for rifrgeration or aotomotive purposes. In heat pumps it's pretty average unless you live north of Aukland.
I don't tend to do a pressure test before I vac the lines down. I check that my lines will hold a vacuum a couple times, then open the taps. It's a cost thing. My time is cheaper than it would be to re gas a unit that rarely...not that I've ever needed to.
There's nothing wrong with running a unit off an existing circuit. Please don't go floating the idea that there is. There are things that need to be taken into account. How busy is the circuit? Don't ever tag in to a kitchen/laundry circuit. What is the max current draw of the unit? Over 10-12amps and we almost always run a dedicated feed. Over 16amps and you HAVE to run a feed.
Actually, I got side-tracked reading through the Dobbed In Weed Growing Parents thread. Crikey, that was a barrel of laughs.
Fuck it, I might just get stoned & go for a ride instead. I'm sure Stirts will send it to me later
That workshop of yours must be in a pretty shitty location if you're surrounded by tinny houses? I'd imagine there's probably lots of dark-skinned people around there as well. How do you cope?
Although I still have a current practicing licence its been a while since I did any domestic wiring. From memory you can only have two socket outlets off a fused circuit, it's more off a circuit breaker.
Your correct that it depends on how much load is on the circuit and you have no control over that.
Best practice is a dedicated circuit, and also pressure testing. Of course you don't have to do these things but in my line of work ( Data Centres) we only deal in Best Practice as it will not come and bite you in the arse.
R22 in Automotive? Back in my day it was R12 then 134A, now I think they use propane, even my fridge is propane.
DeMyer's Laws - an argument that consists primarily of rambling quotes isn't worth bothering with.
Sorry, R12 is what they use a lot in automotive systems.
Best practice is all well and good if the customer is willing to pay for a heat pump install taking all day.
Propane is a great refrigerant...Pity about that whole explosive quality.
CO2 is near perfect...but at those kinds pressures it's pretty hard to make a system that stays sealed. And people die real quick when ya push all the oxygen out of a space.
Think it's 5 outlets on a circuit with a breaker. Not a sparky though, so could be wrong.
I'm not a fridgy either. Just got a small amount of experience.
There are currently 1 users browsing this thread. (0 members and 1 guests)
Bookmarks