I seethe tag on the compressor with a field titled "lub", then a volume. I take that to be the compressor oil volume.
My car service manual states oil volumes for condenser, evaporator, drier, etc.
I think after flushing old oil, I should add the sum of volumes for all system components, including the "lub" volume from the Seltec tag. Please correct me if not so.
And as in the message title, is there any oil in Seltec as shipped? My thought is no, but I'd like to be sure.
PS: The car is 1991 Infiniti Q45 - the manual shows two switches in the high pressure side: "A/C pressure switch" after the condenser, and a "Dual-pressure switch" near the drier, which is also after the condenser.
Can anyone say if these switches provide hi/lo pressure cutout protection for the system?
Depends on which model you are speaking about.
Most compressors shipped with lubricant include a TOTAL system lube recharge. Compressors should be drained.....and then refilled with the correct amount and type of lubricant for the system. Installing a compressor with a over charge of lube may result in a serious compressor operation issue.
By all means, flush the entire system.....some may disagree with this...but it is an unknown factor of exactly how much lube remains in the system. Over 17 years, the vehicle could have been serviced several times....and most techs will add lubricant during a routine service procedure. The fact that the compressor could have been changed prior to this unit presents another scenario....what is the system was not flushed then....and another full charge of lube was added.....there exist a serious variable...how much lube and what is the condition of the lube that remains in the system.
As far as adding lube the system....25-30% in the compressor.....1-1.5 oz in the drier....the rest can go right into the evap......this will feed the compressor a steady stream of lube at start up. The system will balance itself during operations. The key is keeping the compressor lubed during recharge...esp if charging with small cans....or a 30 lb'er and no recharge machine.
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Thanks. Vehicle manual states 250 ml for compressor, 60 ml for evap, 40 ml for condensor, 20 ml for rcv drier, total 370 total, approx 11 oz. These specs are for mineral oil as originally equipped.
SELTEC model TM15HD - Are they shipped with oil, and if so how much? I would like to use DEC PAG in blue bottle, if it's acceptable for this combination. SELTEC seems to hold a little less than OEM, so I think I'll use a total of 250 ml, unless that is too much.
Can anyone say if the SELTEC TM15HD spec of 150 ml is for compressor alone, or total system?
Thank you thank you thank you,
What's the model number? Should be stamped on the tag, 10055***. Most Seltec's come with a proper oil charge for a single unit system. The HT6 replacements do not come with oil besides a small amount for shipping.
I just bought a couple of the TM15's that are on sale, one vgroove 10055021 (sn 021822), one serpentine 10055121 (sn 063511).
The label on the compressor states LUB: ZXL100PG 150 CM3. Does that mean the compressors are shipped with 150 cc of PAG oil already installed? I just need to know so I can be sure it's not over/under oiled.
Now we're making progress. Yes those compressor are filled with 5 ounces of oil. I like to add 1.5 more ounces for most single unit systems when using R134a.
The Seltec comes with 5oz oil installed, but I don't know if that oil is PAG or POE. If replacing an R12-system compressor, shouldn't that installed oil be drained and replaced with 5oz mineral oil?
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