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Receiver Drier part number??

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Brian Fahlgren:
I'm hoping to find a part number for the dash air receiver/drier for our 2000 Monterey Sea Cliff. Guessing it's an Acme unit, but there's no part number. The build date is 9/99, but it's titled as a 2000. The drier is approx 7" tall and 2 3/4" in diameter with male threads. I'm not sure of the thread size. I'm guessing if I replace it with a similar size, it will work. I was going to drill the bottom of the old drier to get an approximate amount of PAG oil to add back into the new drier. I'm guessing I'll be okay with PAG 46, but I'd like to make sure. There was only a high side coupler behind the firewall, but I did find a high and low port a couple feet in line from the compressor on the frame rail. Any suggestions would be greatly appreciated!

Brian

Brian Fahlgren:
Just in case someone in the future needs this part number, here it is. There was a label on the dryer when I removed. It was a Parker brand, part number 110992. I couldn't find it on any Parker site, nor was I able to cross-reference the part number. Searching online, I found Aero Climate Control. Their part number, 1901000, was almost a perfect match. It was only $18.00, although freight was $26.50 lol. Pulled a vacuum for an hour. It sat for over 3 hours before I got back to it. It held the vacuum, so I recharged the system. I ran a portable fan aimed at the condenser while I did the re-charge. The coach's condenser-mounted fan never did kick on. The fan will run when I apply 12 volt directly. Now I'll be searching this site for a solution to that too. All to be expected with a 26-year-old coach!

Fred Brooks:
      Brian,
    Somewhere near the dryer perhaps on the expansion valve side you should find the trinary or binary switch. This cycles on and off according to the temperature inside the evaporator. The other purpose of this switch is to save the compressor in the event the freon leaks, it removes the 12volt power to the compressor and the condenser fan if the internal pressure falls below the threshold setting of the manufacturer. Check to see if 12volt power is present at the switch when the a/c is on. Fred

Brian Fahlgren:
Fred, having tech advice from a 49 year tech is greatly appreciated!! I spent most of my career calling on shops in my tool truck. I'd always joke that I knew who upset the service manager last because that guy would be out working on a motor home. You have my respect. Yes, there is a trinary switch just off the dryer. The only test I've done was putting 12 v to the fan with a Power Probe. I know the fan is good. Didn't get time today, but tomorrow I'll check voltage at the switch. Thank you again!

Fred Brooks:
   Brian,
 I am the guy in the tool truck and admit "I am a tool junkie" Ha Ha, thanks for reminding me. Fred

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