Carlyle 5H40 questions

[ar]

I have a 5H40 on a water cooled DX system. The net oil pressure is 45psig. My question is oil filter pressure drop. According to the specs, if there is greater than 5psig drop across the filter it needs to be replaced. I'm not sure if these filters are still available or not. We were having trouble getting a check of the oil pressure so we installed tee access fittings on both oil filter lines out of and into the compressor at the oil line service valves. When we checked pressure drop, the filter appeared to be almost completely stopped up. We temporarily installed a 1/4" bypass line around the filter, but still had significant pressure differential. The unloaders are working now, to allow loading that is.

Our original problem was problems loading compressor and sporadic oil pressure safety switch trippage. Unit has working crankcase heater so migration and loss at start up is doubtful.

My questions are:
1. Can you get these filters or should I retrofit to an oil filter from Sporlan?
2. There is an "orifice elbow" on the outlet of the filter. What is it for and how much pressure drop should there be?
3. Has anyone had similar problems?

Thanks.

[just_opinion]

Go to Carrier supply house to get you a new filter. Ask them for the book of 5H40 compressor, which will tell you exactly where and what to hook up. It is easier that way than having us to explain to you through world. The book has picture too (no insult intend)

Good luck

[RichardL]

Listen to just-opinion here...
Get a "Carrier" oil filter,(W/Spares) and replace that filter...
Bypassing the oil-filter with the line as you described places one of the finest compressors out there in harms way for sure...
I have seen several units, after a scramble or a burn-out, where a bypass was installed, but "ALL" had a .5 micron filter in line with it, but methinks you did not see fit to do this....
Shame on ya'.....

[freonrick]

if I remember right there is spring loaded bypass valve already built in the unit. cmp out of oklahoma city has those filters also.

[ar]

Originally posted by RichardL
Listen to just-opinion here...
Get a "Carrier" oil filter,(W/Spares) and replace that filter...
Bypassing the oil-filter with the line as you described places one of the finest compressors out there in harms way for sure...
I have seen several units, after a scramble or a burn-out, where a bypass was installed, but "ALL" had a .5 micron filter in line with it, but methinks you did not see fit to do this....
Shame on ya'.....

This bypass was to get the church through the weekend. We won't leave it bypassed. I have the 5H book and will verify part #s. A fellow Carrier dealer that does a lot of commercial work said parts were almost nonexistent. Hmmm.

BTW, this filter looks like a hermetic sealed unit.

Thanks for replies.

[gyhooyabat]

We have pretty much all the parts needed to rebuild her, if you wanted to. Contact your local Carrier distributor, or email me and I'll get you the contact for your area and send you the manuals.

[gotparts90]

if you need any manuals Totaline.com for carrier manuals. cmp does have a good filter but stay away from piston rings from them and the pistons suck to from them.

[just_opinion]

Bypass this filter for a short period of time (weekend or one week) will not do harm.

Not all the oil that the oil pump will pump through this filter. I.e. it is not like freon in the system will go through the filter drier. Partial oil will go through the bearings and unloader. Whatever the left over will pass through the filter and dumps back into the crankcase.

As for your irratic oil pressure and unloader, it is hard to tell. If everything is good (heat load, SH, SC etc..), then I say it is more likely your bearings are worn. Thus you have no oil pressure differential.

[just_opinion]

Another note: Your old filter got clogged from metal shavings. Something else for you to investigate

[ar]

Originally posted by just_opinion
Another note: Your old filter got clogged from metal shavings. Something else for you to investigate

I couldn't see how 3 GPM of oil could flow through the filter since connected with 1/4" copper. The oil looks pretty dirty too. This machine is old has not been handled with TLC.

[maints]

Keep in mind that the unloaders work on oil pressure. So if your low on gas or low on oil you will have problems. Check to make sure your capacity control is set correctly for the unloading action you want at the correct suction pressures. That compressor has only 1 cylinder permanently loaded so with an ampmeter you should see it step down 3 stages of unloading. Also a full charge of oil for that comp is exactly 18 pints.

[absrbrtek]

Appreciate your input. However, keep in mind your replying to a poster that hasn't posted since 1/30/08 or logged on since 5/14/08. And the last post in this thread is posted on 10/03/2006. Your only two years too late. :eek:

[ar]

Keep in mind that the unloaders work on oil pressure. So if your low on gas or low on oil you will have problems. Check to make sure your capacity control is set correctly for the unloading action you want at the correct suction pressures. That compressor has only 1 cylinder permanently loaded so with an ampmeter you should see it step down 3 stages of unloading. Also a full charge of oil for that comp is exactly 18 pints.Thanks for the info. That unit is history having been replaced with 2- new Ruud 15 air cooled condensing units. their bills (electric and water) have dropped like a rock. Still have the old Carrier AH though.

[ar]

Appreciate your input. However, keep in mind your replying to a poster that hasn't posted since 1/30/08 or logged on since 5/14/08. And the last post in this thread is posted on 10/03/2006. Your only two years too late. :eek:How time flies!! :D