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lilblew
22-02-2010, 11:57 PM
probably shouldn't admit this but...

at college the other week i was practising recovering refrigerant and charging the system. i got there and without thinking emptied the gas into the bottle that was already rigged up to the recovery unit, sat by the system.

when the gauges started to freeze over it was pretty obvious id messed up. i shouted my tutor over and he nearly had a bloody heart attack, turned out the bottle i was using was R22, and that the system had been running on R401A. according to my tutor i'd caused hundreds of pounds worth of damage, and now i'm not allowed to touch refrigerant unless under constant supervision, what a jip :(

...beat that!
LOL, that is hilarious.

Andy T
23-02-2010, 10:18 AM
LOL, that is hilarious.
I can't work out four things.Why the gauges was freezing up.How you can reclaim gas into a Refrigerant bottle of R22,past the built in none return valve.why your tutor was using R22 after Dec 09.unless it was a recovered R22 from site.the only cost is for disposal of the now mixed refrigerant at about £10/Kg + cost of wasted R401A .The R22 should be returned anyway by now.

Joe D
28-02-2010, 08:12 PM
Regards the hall of shame during the seventies whilst working as an apprentice in Glasgow one of our journeymen mysteriously disappeared after attending to a breakdown at the police mortuary,it turns out he was in hospital suffering head injuries,the reason for the injury was at the mortuary he decided to play a joke on the appie and sent him for a 12 inch shifter meantime getting under a shroud, when the appie returned he rose up under the shroud to give him a fright, needless to say he received a whack from the shifter and had to be taken to hospital. A good case to wear a hard hat.

hillbillywillie
03-03-2010, 10:42 PM
joe-that's as funny as feck!
i can just imagine the language of the guy under the sheets!
But the appie would really batter a corpse?

Oleg
30-03-2010, 07:36 AM
One company in Peterborough asked me how much I charge to fix R600 and how long does it takes...
I said 3-4h if compressor plus electricaly isolated tools. Later I found out very similar things.... no tools, no knowledge and n pressure test... they du pressure test with Air Compressor

NoNickName
19-05-2010, 03:07 PM
Greece. Athens. 4-stars hotel. Go figure.

nike123
20-05-2010, 05:32 AM
I see 3 Fujitsu and one Chinese. ;)

allanIIIrd
22-05-2010, 05:55 AM
I was a refrigeration and a/c engineer in a health care facility a few years back. It is my job back then to supervise installations of a/c and refrigeration equipment, one day I assigned 2 greenhorns to install a 2horse power window type a/c, the work went along well that day. the following day my supervisor had asked why didn't I installed the a/c, so I asked the two people who I asked to Install the a/c and they told that they had it installed and they to are baffled of mysterious disappearance of the said unit. so in parallel of the ongoing investigation I gave an order to install a new one, by the next day the unit that was previously installed had disappear again. so I went outside and look for the unit and noticed that instead of the usual expansion shield for bracket mounting they used wooden plug and nails and there is deep and murky fish pond directly below the opening for the window type.

guess what is in the fish pond, the second unit sticking out of the water.

case was closed and as for the two I had them cleaning duty of the window type a/c for a year.

flyinkiwi
04-06-2010, 11:09 PM
Years ago, while working for the 'leading' refrig company in NZ, I attended a call to a truck unit which had been recently worked on by our third year apprentice. The reefer was tripping out on HP. Airflow was fine, but subcooling was unusually high. I reclaimed the refrigerant - and then charged the unit with 4 of the 10kg I removed from the system...

ktm
14-06-2010, 12:32 AM
Got a call to a small spit that a subby put in but didn't seem to work. Head pressure was almost 60 bar on r410. He pressure tested to 42 bar with nitrogen. When it held over night he just opened the valves and ran it. Amazed it was still on the wall. Recovered vaced and recharged and amzingly it's worked perfect ever since. Needles to say he does no work for us now.

Dr Death
21-06-2010, 10:31 AM
Only 2 to add from me :-

i) Asked to follow up another 'engineer' who had faulted a compressor on a chiller but had included no details. Last time I looked it was unusual to find a compressor on an absorber !

ii) Asked to follow up 3 different 'engineers' investigating un-satisfactory performance from a VRV. Much better operation with the service valves open !

I fear this is just a sad reflection on the state of our industry !

eggs
02-07-2010, 08:46 PM
Today I was surveying a local school. I noticed that some work had gone ahead that I had previously bid for.

I didn't get the job......... I was too expensive:confused:

Perhaps you get what you pay for ??
The local electrician didn't have a level, or any idea how to support a condenser in a school playground above children's heads. Check out the wood screws. :D
http://img580.imageshack.us/img580/2697/dsc00168xh.jpg
http://img59.imageshack.us/img59/9716/dsc00167kc.jpg


Oh.....and I warned them not to confuse MHI with MEUK.

Eggs

monkey spanners
02-07-2010, 09:19 PM
Looks like he fired the rawlbolt into the mortar too :rolleyes:
Which they are not designed for....

Colin G
02-07-2010, 10:04 PM
and there is a mad man in the window singing YMCA :D

Colin G
02-07-2010, 10:06 PM
anyway, you reckon that slope is to aid oil return?

cool runings
02-07-2010, 11:38 PM
and there is a mad man in the window singing YMCA :D

I saw the YMCA madman :D


anyway, you reckon that slope is to aid oil return?


Great minds think alike :D

Cool runnings.

.

yinmorrison
04-08-2010, 10:03 PM
I hope you brought it to the Head Teachers attention as it could kill a child or teacher for that matter.

richardb14
09-08-2010, 08:11 PM
Regards the hall of shame during the seventies whilst working as an apprentice in Glasgow one of our journeymen mysteriously disappeared after attending to a breakdown at the police mortuary,it turns out he was in hospital suffering head injuries,the reason for the injury was at the mortuary he decided to play a joke on the appie and sent him for a 12 inch shifter meantime getting under a shroud, when the appie returned he rose up under the shroud to give him a fright, needless to say he received a whack from the shifter and had to be taken to hospital. A good case to wear a hard hat.

that story still does the rounds! :p

Icemanjohn
09-08-2010, 08:23 PM
Here is one more for review. This happened about 20 years ago, when I was doing service and installations.

The owner asked for a cost to install a cold room for apple storage. He wanted glass display doors and racks on the front of the cooler for retail sales.

Did the drawings, layout, and proposal and dropped them off. Several months went by with no notice to start the job. (I had been doing the regular work for many past years for this family).

One day at the facility I asked "what is the status of the apple cooler?" Found out it was being completed by a part-time refrigeration guy. The other part of his time he was a preacher in a church. His cost was much lower, so he got the job.

Can you see were this is going??:rolleyes:

The cooler was built with framed up lumber, fiberglass sheets, and styrofoam board (1" thick). No vapor barrier was installed. Interior lights were open incadescent bulbs (not vapor-proof light fixtures). Door lighting was installed with normal fluorescent tubes (no low-temperature ballasts). Door heaters were not wired up (doors frames sweated and were foggy). Air defrost timer was set for 3 hours off (3 times a day). Temperature would not come down (big surprise there).:eek:

The owner asked me to fix it. By the time we got done correcting all of the problems, the total cost was almost double my original cost.

Some people will believe cost determines the quality. Others think cheaper is saving money. Both (myself and the preacher) promised the owner that our proposals would do what he required. The finall version worked quite well, but it was a painful project for the owner.

Moral to the story.... It takes money to make a system work properly and it must be installed by qualified people.

I'm sure everyone has seen these systems. piping runs that sag or are crooked, exposed wiring and cables, and any other poor installation practice you can imagine.

In my opinion, the cost is not the primary point to use for judging the installation or who to award the project to. It is the workmanship and knowledge that make the system run trouble-free from the initial start-up.
My ol dad had it sussed when he said "you pay peanuts you get monkeys"
Customers hate being told they've ****ed up but it's nice to gloat, even just a little bit :)

freedom HP
05-10-2010, 02:57 PM
hi all

for the last few years ive been collecting photos of bad installs, some are mine some have been sent to me.

there used to be a link from the mylg dot co dot uk web site (im not aqllowed to post links apparantley its advertising) but i think its now broken


so try the link from freedomhp dot co.uk click the resources tab and look at the how not to do it link


i think you will like them

regards

Graham (used to be hendrag)

Greengrocer
03-02-2011, 01:16 AM
hi all

for the last few years ive been collecting photos of bad installs, some are mine some have been sent to me.

there used to be a link from the mylg dot co dot uk web site (im not aqllowed to post links apparantley its advertising) but i think its now broken


so try the link from freedomhp dot co.uk click the resources tab and look at the how not to do it link


i think you will like them

regards

Graham (used to be hendrag)

Graham & all. You may want to add this one to your collection.
"Layed back" condensing unit. And before anyone thinks this must be somewhere overseas the picture was taken from a London tube train somewhere between Hammersmith & Ravenscourt.

desA
03-02-2011, 06:37 AM
Lovely, LOL... :)

TheUglyOne
28-02-2011, 04:41 PM
Old cold room, originally R22, converted to R422D. Copeland scroll, with oil separator. Automatic oil return valve faulty (constantly open), some bright spark decided to fit manual valve in oil return line and (of course) valve was constantly open. It killed 2 compressors in meantime, but they still couldn't figure out, why :o

frank
28-02-2011, 11:14 PM
Must be a heat pump and designed for rapid defrosts :D