gmacy
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Post by gmacy on Jul 20, 2020 18:02:47 GMT
Could I use a 1/8” male npt air tank valve schraeder style inside the high side port as opposed to the valve adapter kit with the understanding it would have to be permanent
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Post by cablehack on Jul 21, 2020 1:13:54 GMT
How would the system be evacuated prior to installing the Schrader valve?
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gmacy
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Post by gmacy on Jul 21, 2020 12:56:49 GMT
Can I not evacuate through the schraeder valve with a vacuum pump then charge through the same line ... sorry bear with me as I am used to newer systems 40’s and above ... is the issue related to the high side only or float valve? Thank you
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Post by cablehack on Jul 22, 2020 0:56:36 GMT
The Shrader valve has to be there first before you can evacuate from it. That means cutting into one of the evaporator lines and installing a T piece and the valve. You could also drill a hole in the side of the float valve and braze a valve in there (although that runs the risk of metal particles from the drilling blocking the float valve). As soon as you cut or drill into the system, there will be a rush of SO2. You wouldn't want to be anywhere near it while that's happening.
I am curious why you're wanting to do all this. Having to open the system in anything besides a CA is unusual, and with other machines it's usually because of damage, or a rebuild in the case of DR's.
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gmacy
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Post by gmacy on Jul 22, 2020 19:25:48 GMT
I forgot to mention ... the previous owner snapped the line that connects to the stainless steel evaporator/freezer section ... so there is no charge at all ... so i could add a T and schraeder valve in that line?
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Post by cablehack on Jul 22, 2020 23:42:15 GMT
I forgot to mention ... the previous owner snapped the line that connects to the stainless steel evaporator/freezer section ... so there is no charge at all ... so i could add a T and schraeder valve in that line? A most important piece of information. Yes you can add another charge valve as you suggest. However, a system that has been exposed to the atmosphere will have absorbed moisture. The very least that will have to be done is to vacuum and clean out the system. Methyl formate systems will survive this, but I understand SO2 is much more problematic. |
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gmacy
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Post by gmacy on Jul 23, 2020 1:23:50 GMT
I forgot to mention ... the previous owner snapped the line that connects to the stainless steel evaporator/freezer section ... so there is no charge at all ... so i could add a T and schraeder valve in that line? A most important piece of information. Yes you can add another charge valve as you suggest. However, a system that has been exposed to the atmosphere will have absorbed moisture. The very least that will have to be done is to vacuum and clean out the system. Methyl formate systems will survive this, but I understand SO2 is much more problematic. So my plan was to install the t with schraeder valve, vacuum for 12 hrs then nitrogen test, vacuum and charge to see what she does ... should i install an in line drier |
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Post by cablehack on Jul 23, 2020 6:28:18 GMT
should i install an in line drier I'd recommend a filter drier where possible, provided you're not recharging with SO2. The reaction of this (and methyl formate) is unknown with the pellets inside the drier. |
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gmacy
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Post by gmacy on Jul 29, 2020 2:41:40 GMT
So i soldered the connection back to the evaporator line, cut the line just before entering the evaporator and added a schraeder valve then drier ... when i a vacuum it is pulling oil out ... could i have clogged the evaporator line or am i missing something else stupid?
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gmacy
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Post by gmacy on Jul 29, 2020 2:55:13 GMT
Also when i required it making sure to label the terminals ... on the test start I kept the original capacitor as it worked before ... used a supco relay ... power to supco ... white or start line to the capacitor then to the compressor... common from relay to compressor and run the same ... bypassed the thermostat for the test ... did not run smooth at all ... amps jumped up to 6-7 then went back to 3 but i couldn’t add any coolant due to the back pressure of oil
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rosez
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Post by rosez on Aug 1, 2020 17:36:00 GMT
This is the most recent thread I could find. I have what I am pretty sure is a CK which would have SO2 in it. I need to get rid of it; but I cannot have anyone come and take it away until I get the SO2 out of it and I cannot find anyone to do that. It is in the basement; I cannot hire anyone to get it up out of the basement and into detached garage to even drain it. It never has to work again; and it does work just fine. Can anyone direct me to where on this site I could find instructions to be able to drain it?
The little metal sticker on is says Type G-40 and there is a number of 4109382. It would be nice for someone to tell me it does not have SO2 in it but pretty sure it does. zNot even sure where to start looking. I live in Chicago area; I called people who work with vintage appliances and they were no help.
Suggestions?
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gmacy
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Post by gmacy on Aug 1, 2020 21:07:24 GMT
You can purchase a bullet valve on one of the copper lines and drain it that way, i suppose you could use a longer air line with vacuum to exhaust it outside
If you are going to scrap it, I would love to see photos and could definitely use parts off it like hinges, handles thermostat, shelves etc off of it
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gmacy
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Posts: 39
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Post by gmacy on Aug 1, 2020 21:08:11 GMT
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Post by joneske on Aug 1, 2020 22:42:42 GMT
You can purchase a bullet valve on one of the copper lines and drain it that way, i suppose you could use a longer air line with vacuum to exhaust it outside If you are going to scrap it, I would love to see photos and could definitely use parts off it like hinges, handles thermostat, shelves etc off of it Yeah, please don’t do that. If you post it on Facebook or Craigslist as others have suggested, someone will take it and be able to enjoy it. They’ll probably even give you a few bucks for it. It’s survived 80 plus years and it would be a shame to see it needlessly destroyed. |
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gmacy
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Post by gmacy on Aug 2, 2020 12:30:41 GMT
You can purchase a bullet valve on one of the copper lines and drain it that way, i suppose you could use a longer air line with vacuum to exhaust it outside If you are going to scrap it, I would love to see photos and could definitely use parts off it like hinges, handles thermostat, shelves etc off of it Yeah, please don’t do that. If you post it on Facebook or Craigslist as others have suggested, someone will take it and be able to enjoy it. They’ll probably even give you a few bucks for it. It’s survived 80 plus years and it would be a shame to see it needlessly destroyed. Valid point .... let her live on if you can |
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