Re: {Chrysler 300} Ac
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Re: {Chrysler 300} Ac



Forgot to mention my latest contraption, Mr. Lazenby's former F has its working AC on R12 courtesy of its last owner. If and when it requires evacuation I'll put 134 in. If I can get it!

 

Danny Plotkin  

-----Original Message-----
From: "John Grady" <jkg@xxxxxxxxxxxxxxxxx>
Sent: Wednesday, November 24, 2021 1:04pm
To: "dplotkin" <dplotkin@xxxxxxxxxxxxxxxxxxx>
Cc: "RICK AND DEBBIE CLAPHAM" <rixpac@xxxxxxx>, "c300@xxxxxxx" <c300@xxxxxxx>, "Kim Garnett" <chryslerf@xxxxxxxxx>, "chrysler-300-club-international@xxxxxxxxxxxxxxxx" <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: Re: {Chrysler 300} Ac

It is also “Point Of Access “ valve or line  attachment  descriptor in many AC systems and varies the threads etc depending on refrigerant fittings specific to a refrigerant 
Does anyone really know ( not opinion ) if R 134 works ok with our expansion valve ? At least in theory it closes progressively at something above 32 F to prevent ice on coils , and although pressures near that desired temp are wildly different on the two refrigerants maybe it just works anyway . Engineer in me says valve is specific in some way to  refrigerant as it also the expansion orifice . But it changes that orifice as it does it’s job . (vs cycling clutch .)
anecdotal stuff matters too , if you have 134 working ok with 134 in it? 
With this normal operating pressure issue in mind I went looking and found R 414 which is close to R 12 numbers , but pricey . JY used this ok , no need to change oils etc . 
But maybe just using the more common one R134 is ok with oil change too  in a full restoration as it is essentially a big feedback loop ,it  just adjusts to right temp . But pressures are much higher ... 
I realize this is a little heavy dive , but someone in club may really know AC issues and expansion valve design ?    Maybe a supplier has 134  ex valve ? but fittings no doubt all wrong ..,   
If it works , shut up and use it. I get that too .. john 

Sent from my iPhone not by choice 

On 24 Nov 2021, at 12:40 pm, dplotkin <dplotkin@xxxxxxxxxxxxxxxxxxx> wrote:

POA stands for pilot orifice absolute and is used on GM cars and cars using GM systems (RR Lincoln). It replaced the STV suction throttling valve.  It has nothing to do with Mother Mopar and her RV2. The RV2 does use a EPR, not in Imperials from what I understand and EPR stands for Evaporator Pressure Valve. 
Danny Plotkin 
Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------
From: RICK AND DEBBIE CLAPHAM <rixpac@xxxxxxx>
Date: 11/24/21 8:51 AM (GMT-05:00)
Subject: RE: {Chrysler 300} Ac

POA, is a generic or slang, in trade term. Frigidare for refrigerator….

 

Sent from Mail for Windows

 

From: Rich Barber
Sent: Tuesday, November 23, 2021 9:51 PM
To: 'RICK AND DEBBIE CLAPHAM'; 'Kim Garnett'; chrysler-300-club-international@xxxxxxxxxxxxxxxx
Subject: RE: {Chrysler 300} Ac

 

Not being critical—just learning & sharing, For Evaporator Pressure Regulator valve—from the ’64 FSM see: air-conditioning.pdf (jholst.net) Pages 24:15-17

 

Rich B.

 

From: chrysler-300-club-international@xxxxxxxxxxxxxxxx <chrysler-300-club-international@xxxxxxxxxxxxxxxx> On Behalf Of RICK AND DEBBIE CLAPHAM
Sent: Tuesday, November 23, 2021 5:47 PM
To: c300@xxxxxxx; 'Kim Garnett' <chryslerf@xxxxxxxxx>; chrysler-300-club-international@xxxxxxxxxxxxxxxx
Subject: RE: {Chrysler 300} Ac

 

Sorry EPR

 

Sent from Mail for Windows

 

From: Rich Barber
Sent: Tuesday, November 23, 2021 6:43 PM
To: 'RICK AND DEBBIE CLAPHAM'; 'Kim Garnett'; chrysler-300-club-international@xxxxxxxxxxxxxxxx
Subject: RE: {Chrysler 300} Ac

 

POA?  I had to look it up and found this:  About POA valves | Original Air Group   A learning opportunity for me and, perhaps, others.

 

Rich B in CA

 

From: chrysler-300-club-international@xxxxxxxxxxxxxxxx <chrysler-300-club-international@xxxxxxxxxxxxxxxx> On Behalf Of RICK AND DEBBIE CLAPHAM
Sent: Tuesday, November 23, 2021 5:27 PM
To: Kim Garnett <chryslerf@xxxxxxxxx>; chrysler-300-club-international@xxxxxxxxxxxxxxxx
Subject: RE: {Chrysler 300} Ac

 

The POA valve?

 

Sent from Mail for Windows

 

From: Kim Garnett
Sent: Tuesday, November 23, 2021 9:17 AM
To: chrysler-300-club-international@xxxxxxxxxxxxxxxx
Subject: {Chrysler 300} Ac

 

Need to know the color of the evaporator pressure regulator  located on the back side of AC  unit on my 300F. Thanks to all, Kim.

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