Manuerop Compressors

[john doersom]

Have you fellas across the pond (at least EAST of NYC) had much success with the "MANEUROP" compressors from DANFOSS?

I am considering the benefits as advertised for the Maneurop compressors to replace the Copelands that we now use on fruit cold storages here in PENNSYLVANIA. Copelands are just too expensive now. THANKS for insights.

[Andy W]

I am not a big fan of Maneurop, I find them very noisy and the MT18 is possiblty the worse compressor that I have used. They are better on 3 phase than single phase.

[Abe]

Ask me to chose between Copeland and Man

Copeland wins hands down........every time

Man is noisy..........the capacitors on fans fail every so often..
it just kinda.........works odd..........

[john doersom]

Thanks for your reply's.

We were trying to come up with an alternative hermetic compressor that we can use to comply with the 2010 EPA changeovers that we need to look forward to. Manuerop seems to be the only one advertising the ability to change oils, and, the same compressor will utilize the newer refrigerants. Most of our equipment uses R-22 which we need to phase out eventually. We will probably convert to R-410(a) with most of our 71/2 hsp and 10 hsp. equipment.

[BESC5240]

Thanks for your reply's.

We will probably convert to R-410(a) .

Hi John,
When using R410A you will need compressors with a MWP of 45 bar (on the HP side). Not all 'standard' compressors can handle this.

[john doersom]

Well, Thanks.

We are used to the older hand-made 30yr. old equipment that I originally installed in the cold storage rooms during my 35 yrs. as an independent refrigeration contractor.

Our equipment is mostly "KRAMER(tm) " product originally hand made in Trenton, N.J.

I watched men hand drill holes in the mounting frames for the condenser and evap. during the assembly of same. After they had the return bends hand welded, they submurged the "coils" in a water tank. Then they applied 40,000 pounds of "water" hydraulic pressure thru the coils to expand the copper to the standard size of 1/2 in. od, or 3/8 in od.

Out of due respect to those "older" craftsmen, I am keeping the equipment as OEM as possible. Currently we operate Copeland(tm) semi-hermetic compressors on the rooms that require CA (controlled atmosphere) . These are 10's and 20's, R-22. Originally we used R-502.

I will probably keep the semi's on these rooms. However, we have a smaller room that uses only 7 1/2's.

We hope to use this "smaller room" as a TEST BED for the MANEUROP's(tm).

Our main supplier, here, is United Refrigeration, Phila. PA.
They are allowing me to arrange a trip to Germany to visit with the MANUEROP factory people.

The reason I will use 410(a) is that I MUST only stock only two refrigerants (I am allowed to say "*****" because DuPont Co. is my ALAMATER)

So for RURAL Pennsylvania, agriculturally speaking, most of the older equipment will use *****(tm) R-22 orR- 410(a). I will do my part to keep the price of MILK affordable. EPA or no EPA!

John C. Doersom
Gettysburg, PA

[glabah]

Ask me to chose between Copeland and Man

Copeland wins hands down........every time

Man is noisy..........the capacitors on fans fail every so often..
it just kinda.........works odd..........

Where I work, the preference is for Maneurop hermitic compressors, but for entire condensing units we gave up several years ago. The compressors still seem to be OK, but everything on the condensers, from fans to electrical box assembly, just hasn't been very good recently. The quality of the condenser assembly just seemed to go downhill over the course of several years.

We had an entire batch of condenser units where the fans broke loose from the motor shaft. After that, we designed and put into production our own line of condensers with fans from another manufacturer, but still with the Maneurop compressor.

On the other hand, our particular business tends to be large systems, and so we use the MT100 series compressors. Those are still made in Europe. The smaller compressors (MT18 and so forth) are apparently made "somewhere else" (according to a phone conversation with them). The difference in quality between those still made at the European plant and those made at the "somewhere else" facility might be why some us have very different opinions about these compressors.

[Peter_1]

Scrolls from Benchmark (Bristol) seems very promissing.
But if I had to chose between Bitzer or DWM, then I should chose without no doubt Bitzer. Very, very silent, no vibration, almost same price, ...

[chemi-cool]

Its a funny question,

I love the Maneurop compressors and use them all the time when I need hermetics, only 3 phase though.
Never had any problems with them.

On the semi line, I agree with Peter, Bitzer comes first and then DWM.

Chemi

[FreezerGeezer]

Hi John
If you don't mind me asking, why 410a rather than 407c?

[fixit]

Well folks
Any compressor but Maneurop compressors, no room for error ! just burnout. Replaced more blue bellies than any other.........

[guy in blue van]

from ct. please dont waste your money on the blue.
you'll be lucky if you see 5 years out it.

[chemi-cool]

Its all a matter of installation.

I can show you many of them, working in hot conditions and still running fine after 15 years.



Chemi

[Jasper]

Have nothing but respect for Manuerop Compressors.

Last forever as long as the installation is clean.

Comes down to good installation procedures as usual.

[philippe]

I'd add the precision that all the MT's from Man are made in the same plant in France.

Phil.

[slingblade]

I'd add the precision that all the MT's from Man are made in the same plant in France.

Phil.

And then chopped in half by the likes of LH and others,where they build 1 out of the remaining bits of 4 dead ones and weld the 2 halves back together. The so called remanufactured units are prone to popping.

[philippe]

And then chopped in half by the likes of LH and others,where they build 1 out of the remaining bits of 4 dead ones and weld the 2 halves back together. The so called remanufactured units are prone to popping.

Is it here a serious forum ? Or humor-destress posts ?

[slingblade]

Is it here a serious forum ? Or humor-destress posts ?

I do not understand your question. the fact of the matter is that in the UK it is possible, when faced with a dead maneurop, to buy a remanufactured unit which is nothing more than a combination of parts from several dead units. whilst this is cheaper than a new one it can have its drawbacks, rapid failure being the foremost. i have nothing against maneurop or indeed the french in general and this was not intended as "humor-destress post" whatever that may be. in fact Vive la France, and good luck in the 2010 world cup.

[old gas bottle]

i agree with the above apart from the football cause itay won by now,oooooooop.s,if there fitted correctly as anything on a new system fine,if you inherit a well troubled system which we all do its a case of how long is this gonner last then ! good thing is there easy to change,i think thats allways been there strong selling point.

[philippe]

...the fact of the matter is that in the UK it is possible, when faced with a dead maneurop, to buy a remanufactured unit which is nothing more than a combination of parts from several dead units.

OK, I thought you were speaking about original Mans; not of hand-rebulit ones by some repairers. But in that case, take also car to PED !
We're ashamed form the Mundial final result, we'd better remember the Brazil match . And one more final is not so bad

[Rajeevcoldtech]

hai

maneurop we can not compare with copeland

[Renato RR]

Did someone work on Bitzer 8FC70,2.I have repeated troubles on that model.

Renato

[donato]

maneurops' internal thermal protection caused so much trouble to me. http://www.chez.com/fbetou/autopsie.htm

[BESC5240]

The internal motor protection does not open itself. There is always a reason why it opens : temperature (overheating and indirectly overcurrent). It's easy to blame the compressor but mostly the reason is
- inpropre system build up (soldering without N2, moisture in the system, poor oil return...)
- poor maintenance (clouged condensor, bad defrost regulation, ...) ...

[Abe]

maneurops' internal thermal protection caused so much trouble to me. http://www.chez.com/fbetou/autopsie.htm

Pity its in French
Looks very intresting the article

[CuGe]

Spend the extra and buy the Copeland. Their Scrolls are the best.

[DeB]

Its amazing how it went from maneurops to semis to screws.Everyone has wandered from the main question. Most compressors in the semi hermetic range are fairly good today. Good Installation and maintenance are the key be it Bitzer, Copeland, Frascold, or any other quality semis. Abuse anyone of them and they wont last. Maneurop or copeland hermetics will do the job at an initial saving on purchase price. By the time they need replacing we may be using co2 or some other environmentally more friendly refrigerant together with more energy efficient compressors. Why not just use R134A for now It works and is readily available especially due to its large use in auto a/c. Who knows what we will be using in a few years time that may render the semi obsolete. I can still remember when the belt drive was king in Australia. The Kelvinator open compressor made here was legendary for its longevity but could not outlast progress and technology.

[Temprite]

[QUOTE=DeBI can still remember when the belt drive was king in Australia. The Kelvinator open compressor made here was legendary for its longevity but could not outlast progress and technology.[/QUOTE]

I still see these on milk vats and some older pubs, not much goes wrong with them, slower reving than the Terry comps and far more reliable.