Reply to Thread

Found it lol below

I use to PM many of those,, They never broke. I recall the hardest Part was looking for the Suction cup to pull up the floor. Nice pic. Ill start searching 4 info.

We work on a couple dinosaurs for a large telecummunications company. Big, big Liebert units with glycol cooled condenser loops. They're still huffing away. They're around. One of my co workers used to do work at a large tire manufacturing plant in eastern Canada. Lots of old Lieberts kicking around. If it aint broke, let it be. Although if the board were to go I'd change my tone.

I was servicing a Coleman vestibule rooftop heater that looked like a locomotive but unfortunately last winter the motor burned out and it melted itself cycling on the high limit. The neaters thing I've seen were some oil fired rooftop units. I Never worked on them but they were neat looking.

Originally Posted by Russ57

That ain't nuthin. My liebert has pnuematic controls. 1978 vintage IIRC. Runs like a top.

Now if you want a real laugh....I have AHU controls.....old barber-coleman....that run on vacuum tubes....that are still on-line.

I remember the vacuum tube BC controls. I had completly forgot about them. Red board, two tubes......

1979.
FD series were manufactured previous to 1982.
129 date code is the month and year.
12=December
9=Year (The only option would be 1979)

The biggest clue is the "PCR-2" in "The Six Million Dollar Man" type font!
GENTLEMEN, WE CAN REBUILD IT, FASTER, STRONGER, MORE TONNAGE...

We had one of those in big truck manufacturing plant near Seattle. They had the snuffer fire suppression system in the same room and I had it turned off so I could use my torch. I lit up my torch, not realizing I didn't tell all the guys in the room that the fire suppression system has been wisely turned off, that they all ran out the door. Kinda funny.

This one that looks like yours was built in the early 80's and I had a hard time getting parts for it. I doubt if it's still there.

Oldest, a 1987 refuse to work on units more then 15 years old to be honest.. I replaced the 1987 it was a trane I do believe lil old lady wanted me to fix her drain on it.. I told her I could fix it but would feel bad for doing it, she was happy that I suggested replacing it, instead of fixing it, she said I was the first technician to suggest a new one, and signed the contract a half hour later. LOL it was in her erm office...

true story...

oops

Originally Posted by OldSchoolMech

What are they big AC for computer rooms? I have never seen one. Probaly due to my age

Heat, cooling, humidification, de-humidification, and filtration all wrapped into a neat little package.

What are they big AC for computer rooms? I have never seen one. Probaly due to my age

Originally Posted by Russ57

Hmm, so now I'm a liar? Let me get through this hurricane and I'll see if I can figure out how to post a pic.

Pray tell, what is better about a 10mm?

No, I am not calling you a liar. I just want to see this beast.

We currently have 3 1983 models with both dx and the econo coil (chilled water coil). They are all in pretty fair shape still.

Hmm, so now I'm a liar? Let me get through this hurricane and I'll see if I can figure out how to post a pic.

Pray tell, what is better about a 10mm?

Originally Posted by Russ57

That ain't nuthin. My liebert has pnuematic controls. 1978 vintage IIRC. Runs like a top.

Now if you want a real laugh....I have AHU controls.....old barber-coleman....that run on vacuum tubes....that are still on-line.

Pics or it never happened.

That ain't nuthin. My liebert has pnuematic controls. 1978 vintage IIRC. Runs like a top.

Now if you want a real laugh....I have AHU controls.....old barber-coleman....that run on vacuum tubes....that are still on-line.

I wouldn't call it old. Maybe numerically challenged. I remember a job at the air base here where I moved the control panel on one of these to another room and ran the wires back to the unit. It must have been awhile ago because I remember drawing the schematic using Generic Cad.

[QUOTE=Tech Rob;14036911]Wow! Not many of them around! I think I have seen one or two in my travels. Oldest one I take care of at the moment is a 1991 model with the Level 10 controls. I upgraded an early 90s Level 00 to AM about 5 years ago and it's still running strong as far as I know.

TechRob:

I have 3 on site ( 1990 vintage ) that I have upgraded from 00 to AM in the last couple years - works great!

Freonguy CM

89. I have worked on and replaced ones from the 70's down here in Louisiana

Wow! Not many of them around! I think I have seen one or two in my travels. Oldest one I take care of at the moment is a 1991 model with the Level 10 controls. I upgraded an early 90s Level 00 to AM about 5 years ago and it's still running strong as far as I know.

Cool pictures, thanks for posting them!

ZW17:
I have a few 1989/1990 vintage units here and they all have the ' 00 ' board which is the version just after what you have - I have worked on units like the one you listed, but I am inclined to say mid - late 80's.

I have been working on Lieberts since the early 80's, but my brain is getting fuzzy - there will be someone out there with a definitive answer.

Good photos!

Freonguy CM

i want to say 1989 or 1990. They look the same as the ones i had...I had a few that was air cooled and water cooled.