View Full Version : Coolest thing i've seen yet...
02-01-2006, 08:05 PM
Saw an old centrifugal today, not much left of it, still on the pad, turbine gone, condenser gone, but that old
17m 52 looked like it was quite a machine in its day. i heard it ran for the better part of thirty years or so.
if it matters thats a carrier compressor that looks just like a huge centrifugal pump.
[Edited by hvac3901 on 02-01-2006 at 08:55 PM]
02-01-2006, 09:09 PM
A bullet proof machine. They don't make them like that anymore.
02-01-2006, 09:14 PM
yes sir literally. the matting surfaces were about as thick as 1000# ansi flanges.
02-01-2006, 10:05 PM
Oldest one I worked on was an American Standard Tonrac. Was dated in the mid-50s. Did the overhaul on it back in 1996. I was still pretty green but it impressed the crap out of me. Only 150 toms or so but as big as a 400 ton today.
We got a bunch of Trane double-enders here dated in the mid to late 60s. Been slowly getting them replaced even though they still run. I recall tearing one apart a few years back and it had brass impellers!
02-01-2006, 10:54 PM
Most would be suprised how many 17 MPS machines are still out there. The process world is its niche.
02-02-2006, 07:27 AM
I still have a 17s that runs 24/7. it holds over 45,000lbs of 134a. I was told by carrier national service in houston that some other country will still make one for you. I asked what the one i have would cost and he said about $300,000.00 world wide there still quite a few of them. only one in my area.
02-02-2006, 07:32 AM
02-02-2006, 08:47 AM
I used to work at a building that had a Carrier 9 1/2 cz I believe was the model number. It was put in this building in the 1930's. I was still running it in 1988 when I left the building. Sadly, when they remodeled the building they gutted the machine. I still have the original service manual that came with the machine.
02-02-2006, 09:14 AM
I worked on a 17M one time that was being torn down for a simple bearing and rotor inspection. We found the oil supply line to the thrust bearing completely blocked with crud.
Nobody had suspected that the machine had any problems!
The best I could figure is that the babbett lined thrust bearing ran in a melted condition, and that when the unit restarted, the motor had enough torque to break the solidified babbit surface in two. Since this was a old, old unit, there was no thrust or oil temperature sensors, except in the sump, where the hot oil temp was diluted from the other bearings.
02-02-2006, 04:08 PM
I will get a few pics of one tomorow..
02-02-2006, 04:44 PM
02-02-2006, 08:09 PM
we have a double ender as well, still runs like a champ. 24/7 and not one hitch except once or twice with the motor controls.
02-02-2006, 08:20 PM
Why don't we all post some of the best oldies we've seen on the site. I also have seen a built up DX multi-zone, yeah yeah it's not that efficient, but from the late forties early fifties i think? till now it has had no problems what so ever, a reported leak once from vibration, was isolated with the numerous sevice valves that were available in the system and was repaired. since then not one refrigeration problem. Damn thing had a funny belt driven condenser motor.
02-02-2006, 08:48 PM
I just got a call today to price up an overhaul on a 17P with a Murray turbine, 1500 HP. Vintage 1950. Turbine and compressor overhaul. A 17P is the 3 stage version.
02-02-2006, 09:13 PM
Must be nice to lay hands on something that has been respected and cared for, for so long. New equipment just dos'nt have the same class as the old stuff, mission oriented without any style, no presence. streamlined and reduced and economized into something that is abused and laid to waste sometimes before a following generation of techs can even get to see it.
the 17m i enjoyed seeing sitting there on its pad looked ready to work again at a moments notice with only the need of a motive force to drive it and a system to use her services once again. one the sister compressor was even reverently flanged off and bolted up, albeit with plywood, but still flanged off and retired right where it once performed its duty.
02-02-2006, 09:36 PM
Well, from what I've heard, they're reproducing the old 17M,P,S compressors.
I was just doing a Routine Operational Inspection today, on two 750 ton 17S44 compressors that were built in 1946. They are driven by a 400 lb steam, turbine.
It's not the cleanest of places, but whatever I suggest is a green light.
Carrier, Syracuse, about 1 year ago, asked for info on any of these machines that were more than 50 years old. They had so many, they weren't interested in mine that were built in '46.
Parts are still readily ( well there's some lead time required ) available.
02-02-2006, 11:07 PM
The last I heard on them was a foreign company had the rites....I think FES had it for a while and sold it to them. I know carrier started making 17DA's again a few years ago. Some ideas are timeless.
02-04-2006, 09:57 AM
some years i worked on a 17m that was built before ww2, it was intended to go on a ship, for some reason it got sent to a building in raleigh, nc, there was a eddy current
clutch between the motor & the compressor, the main motor
had a 5 hp motor bolted to it, the 5 got the 300 up to full speed & a govenor let it go across the line(no inrush),
a dc generator let voltage go to the clutch & the compressor got off like a herd of turtles, no vanes,the
condenser pressure guage had 2 inputs, temp & press, sure hated to see it go, wish digital cameras had been invented
02-04-2006, 02:34 PM
so do I. Sounds like quite the starter arragement. Not quite as good as the new start methods. But a sight none the less i'm sure.
A side note, When does everyone think that they will start to reverse engineer some units. By that i mean when are they gonna realize that they have "x" amount of old stuff out there. And "x" amount of new stuff on the market, installed and operable. And we pull proportionally less parts off the shelf for the older models than the newer models. screw what they say about new equipment sales service and parts. If i made a unit I would want that kind of reputation. been in service for fourty years and only replaced this or that plus regular service.
02-04-2006, 03:12 PM
The big issue with not being built like the old days is one biggie.....Electrical effencicy. The new equipment KW per ton compaired to the old days is night and day. In the matter of a few years they have saved enough money to purchase a new machine. I like all the bells and whistles. It has created a whole new portion to the buisness that didnt exist before, and this adds up to man hours. I like the old stuff, but understand how the market is driven.
Have any of you ever heard or worked on Chillers or any equipment from an old company called Meyer Refrigeration Engineers Inc. Paramus N.J.
I used to work for them 25 years ago and our chillers used twin Vilter compressors. small units used Fricks.
We only sold to top 500 fortune co's? They went belly up and were sold to a firm in Chicago. Great Co.
02-04-2006, 05:59 PM
Me having a miserable day (about 100 degrees, and 12 hr days). This was taken about 8 years ago. (R-123 conversion, re-tube, and UCP-2 conversion). Had to get done in 2 weeks.
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