The 065643101 is the ADP part number for that valve (1.5-3 ton R22).
The 189202MX is definitely a Parker date code, but I can't figure out how to read it.

 

Made the 18th week of 1992 in Parker Hannifan plant #2 in MX (Mexico)
Made specifically for ADP, thus OEM assigned part# 065643101 or superseded to 19167501
Brass Casting and TXV body ID is 139-09

 

You don't happen to have a chart you could post for decoding those, do you?

 

Thanks slctech. I'd love to have a chart too, but glad to have the info even if there isn't one.

 

Reading stuff like this makes you question the week/year convention as it relates to that TXV.

Another reason for question is that that TXV was installed on a 2020 coil.

I don't want to tell my customer that his other contractor installed a 28 year old TXV (28-ish at the time of installation) without knowing for sure.

 

I don't want to tell my customer that his other contractor installed a 28 year old TXV (28-ish at the time of installation) without knowing for sure.

Well, it is an old part number. Maybe the installer had it on his shelf and used it? I doubt the supplier gave them a valve that old.

 

I would not blame a contractor for installing a 20 year old part, 99.9% including myself are not looking at a particular part's age when I purchase it from a distributor or parts house.

As for a nomenclature list, just have my experience with Parker components. Parker Hannifin just doesn't support the HVAC market, they are massive in hydraulic, pneumatic, and other industries. Thus their serial number system is pretty much the same across their components starting in 1987 to present. I can grab a hydraulic spool valve for a industrial robot and the stamped or laser etched info is the same as a TXV used on an HVAC system.

 

I sold an R22 TXV, that I had on my truck for over 15 years. The customer was happy, their chiller was running, and the men can get back to work, laser cutting metal parts.

Nothing wrong with a new part, no matter how long it sat on the shelf.

 

I respectfully and partially disagree gents. There's no doubt that some old parts can be fine. However, IF slctech is correct, that part was 28 years old when it was installed.

As far as I know the installing contractor hasn't worked this area for even half that amount to time. If they got it from Surplus City (see the link in the opening post), there's no telling how long it bounced around on some guy's van before ending up in my customer's coil. Sitting on a shelf is one thing. Bouncing on a van is another.

The bottom line is that you just don't charge the amount of money they charge and install a 28 year old TXV. It's clearly a bad look and arguably a bad trade practice.

 

Did it fail?

 

Yes. I suppose I should have shared that already.

 

I have seen fairly new TXVs, factory installed fail without setting on a shelf, or bouncing in a truck.

 

Yep I've had a payne fail within the first month. The bulb lost its charge. Of course it wasn't a replaceable power head so it wasn't an easy fix either.

 

Especially during the Copeland oil additive mishap.

 

Here's the replacement TXV. Parker's nomenclature must have changed along the way.

 

I spoke with ADP and Parker tech support. ADP couldn't tell me anything. Parker doesn't know when it was made either, other than to say he's confident that it's not more than 10 years old. The Parker guy asked about a label on the head, but there is none.

Here's the funny part: It wasn't a bad TXV after all. On the first trip I measured very high subcooling and low suction. There was no apparent flash gas in the liquid line at the coil and there was icing at the beginning of the coil. Then when I went back for the repair. It pumped down way too quickly and easily. So I recovered and found it only had 1.5 pounds of refrigerant. After vacuuming and charging with 5.5 pounds it ran fine. Apparently there was a bunch of non-condensables in the system, but so little refrigerant that there wasn't enough refrigerant to make "flash gas noise".

The first ten years in this biz (starting in the 90s) I don't think I ever once had a confirmed finding of air in a system. Now I've had three this summer alone. It's getting bad out there, particularly in Cali.

 

I will make a few phone calls tomorrow to my hydraulic/pneumatic rep.

Appears to me that the first three numbers are the day and then the year.

Thus the original valve you posted would have been manufactured on the 189th day of 2020 at factory #2 in Mexico...which makes more sense...hmmmmm
and the subsequent valve you purchased was manufactured on the 294th day of 2021.

This is what it is looking like. I know for a fact that the last digits such as the 239-17 are casting numbers for the valve body, thus the TXV you must have recently purchased is probably a tad different in construction?

 

It might be constructed differently, but it does look compatible. I didn't pay much attention because I ended up not replacing the TXV.

 

View attachment Goodman txv bulletin.pdf

The Goodman bulletin from 2008 says at that time it was a 3 digit day of the year followed by one digit for the year.

They probably added an extra digit when 2010 rolled around, so your valve would be 2020 with the extra digit.