Hall of shame.

[arcticmonkey]

if anyone would like to pressure test a system with oxygen i would like to see pictures of the outcomee.hehe.

[taz24]

I know someone who in the 70s blew a condeser clean with propane and then blew the shop windows out when he lit his leak lamp.


Cheers taz.

[mickandlee]

Many years ago I went to commission a new AC system serving a restaurant. Day was very hot. I was told system had a holding charge of R22.

Started comp and suction just dropped, added more gas - no change.

Check system found liquid line from condenser connected to the reciver connection marked ontlet !!!!!! (Both connections on top of LR shell - outlet being fitted with a dip pipe). lliquid from receiver comming from top of receiver shell.

Only option, as managed of resturant getting most upset, but to blow off complete charge. Approx 80 lbs. R22. (Global warming had'nt been invented in those days)

This affected the sensor for the AC system and turned on FULL HEATING. Restaurant manager even more unhappy!!!!

Latter when mentioning problem to the installing ENGINEER ???????? he said he did not know that one of the receiver connections had a dip tube and his arrangement looked better.

Happy days

Mick

[MikeA]

Hi all new to this but laughing a lot all the same.

Went to look at an existing R22 rooftop package A/C unit that the encumbant engineers had been unable to determine the problem. They said that it was sort of working as there was a TD across the compressor but that there didn't appear to be any action on the indoor section.

We had a look over the unit and there are two 25kW circuits. After a brief check we found that there was a blockage across one of the TX valves. We suggested reclaiming the system and checking it out.

This is what we found...


I think they need to work on their maintenance regimes a little more.

Cheers Mike

[frank]

Did anyone read the article in H & V News this week about fixing AC condensing units?