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scrivyscriv
Samba Electrician
Joined: October 04, 2011
Posts: 2922
Location: Memphis
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 Posted: Fri Mar 16, 2018 9:00 pm Post subject: Re: DPD overhead A/C in an early bay |
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| skills@eurocarsplus wrote: |
honestly, if I were you I would have the fans come on with the system. every electric fan cooled car does that the second it's switched on. easier to get a consistent idle when everything is loaded electrically instead of having the idle hunt every time the fan kicks on |
Would make my wiring a lot simpler too, I might just go ahead and do that
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Robert in Memphis
Dünkelgrügen 1967 Java Green bug thread
Engine rebuild thread
If you're ever in the Memphis area, you are welcome to stop by for advice and help. |
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skills@eurocarsplus
Samba Peckerhead
Joined: January 01, 2007
Posts: 16879
Location: sticksville, ct.
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| Posted: Sat Mar 17, 2018 9:39 am Post subject: Re: DPD overhead A/C in an early bay |
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| scrivyscriv wrote: |
| skills@eurocarsplus wrote: |
honestly, if I were you I would have the fans come on with the system. every electric fan cooled car does that the second it's switched on. easier to get a consistent idle when everything is loaded electrically instead of having the idle hunt every time the fan kicks on |
Would make my wiring a lot simpler too, I might just go ahead and do that |
the ICE kit I put in putt-n's bus did that and was a copy of the dpd under dash unit.
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| gprudenciop wrote: |
my reason for switching to subaru is my german car was turning chinese so i said fuck it and went japanese....... |
| Jake Raby wrote: |
| Thanks for the correction. I used to be a nice guy, then I ruined it by exposing myself to the public. |
| Brian wrote: |
| Also the fact that people are agreeing with Skills, it's a turn of events for samba history |
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alman72
Samba Member
Joined: October 09, 2014
Posts: 2573
Location: MICHIGAN
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| Posted: Sat Mar 17, 2018 1:12 pm Post subject: Re: DPD overhead A/C in an early bay |
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| Refering to having a box of R12, big brother says I can own it, but only sell it to certified users, or to a purchaser that only intends to resell. (with a written statement of such) |
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scrivyscriv
Samba Electrician
Joined: October 04, 2011
Posts: 2922
Location: Memphis
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| Posted: Sat Mar 17, 2018 3:09 pm Post subject: Re: DPD overhead A/C in an early bay |
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Changed the schematic around to make the condenser fan come on with the compressor signal, and moved the fuses downstream of the relay since the fan and clutch pull different amp loads.
Honestly I hate the fusebox I have and I'm thinking about just making a small L bracket to hang the relay pair on the engine firewall. I wanted a tidy look but VW makes it hard to make ANYTHING look OE if it's not!
_________________
Robert in Memphis
Dünkelgrügen 1967 Java Green bug thread
Engine rebuild thread
If you're ever in the Memphis area, you are welcome to stop by for advice and help. |
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scrivyscriv
Samba Electrician
Joined: October 04, 2011
Posts: 2922
Location: Memphis
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| Posted: Sat Mar 17, 2018 6:06 pm Post subject: Re: DPD overhead A/C in an early bay |
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| alman72 wrote: |
| Refering to having a box of R12, big brother says I can own it, but only sell it to certified users, or to a purchaser that only intends to resell. (with a written statement of such) |
Hey man! I'm not sure where you got your information from, but it doesn't seem accurate. Quoting from the EPA website https://www.epa.gov/section608/refrigerant-sales-restriction,
"The sales restriction is established by EPA regulations (40 CFR Part 82, Subpart F) under Section 608 of the Clean Air Act. Only EPA-certified technicians are allowed to purchase ozone-depleting substances (ODS) used as refrigerants. Technicians may be certified under either the Section 608 or Section 609 technician certification programs. Starting on January 1, 2018, the requirements discussed on this page will also apply to most substitute refrigerants, including HFCs."
I'm not in the auto or HVAC industry so I don't have any inside knowledge. I am 609 certified to work on mobile a/c since 2011 (although that doesn't really amount to a hill of beans).
_________________
Robert in Memphis
Dünkelgrügen 1967 Java Green bug thread
Engine rebuild thread
If you're ever in the Memphis area, you are welcome to stop by for advice and help. |
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SGKent 
Samba Member
Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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| Posted: Sat Mar 17, 2018 6:12 pm Post subject: Re: DPD overhead A/C in an early bay |
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| scrivyscriv wrote: |
| alman72 wrote: |
| Refering to having a box of R12, big brother says I can own it, but only sell it to certified users, or to a purchaser that only intends to resell. (with a written statement of such) |
Hey man! I'm not sure where you got your information from, but it doesn't seem accurate. Quoting from the EPA website https://www.epa.gov/section608/refrigerant-sales-restriction,
"The sales restriction is established by EPA regulations (40 CFR Part 82, Subpart F) under Section 608 of the Clean Air Act. Only EPA-certified technicians are allowed to purchase ozone-depleting substances (ODS) used as refrigerants. Technicians may be certified under either the Section 608 or Section 609 technician certification programs. Starting on January 1, 2018, the requirements discussed on this page will also apply to most substitute refrigerants, including HFCs."
I'm not in the auto or HVAC industry so I don't have any inside knowledge. I am 609 certified to work on mobile a/c since 2011 (although that doesn't really amount to a hill of beans). |
my understanding also is that you have to hold the certificate. There are some online classes. If one purges it then one must own certified recovery equipment. Where it goes downhill is if someone sees someone working with it or releasing it, the penalties are like the end of ones career. Besides, the older refrigerants are so expensive.
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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skills@eurocarsplus
Samba Peckerhead
Joined: January 01, 2007
Posts: 16879
Location: sticksville, ct.
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| Posted: Sat Mar 17, 2018 7:13 pm Post subject: Re: DPD overhead A/C in an early bay |
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not to derail the thread any further....
yes, you need the cert to purchase quantities of refrigerant greater than the stupid shaker cans autozone sells. which is bullshit seeing any schmuck that watched some youtube hero dink with the system can buy it.
venting to atmosphere and getting caught will ruin your life. you may as well have raped and murdered your neighbor because the penalties are about the same.
what's even more obscene than that is, you can LEGALLY charge a known leaking system by federal guidelines. unless your local government prohibits it, the feds say it's ok, but "not recommended"
MACS and EPA got my $$ so everyone else can pollute 
_________________
| gprudenciop wrote: |
my reason for switching to subaru is my german car was turning chinese so i said fuck it and went japanese....... |
| Jake Raby wrote: |
| Thanks for the correction. I used to be a nice guy, then I ruined it by exposing myself to the public. |
| Brian wrote: |
| Also the fact that people are agreeing with Skills, it's a turn of events for samba history |
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69BahamaYellow
Samba Member
Joined: April 22, 2011
Posts: 537
Location: Talbott, TN
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| Posted: Tue Mar 20, 2018 6:11 am Post subject: Re: DPD overhead A/C in an early bay |
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Glad to see you're making progress on the AC system again, Robert. Couple of suggestions to add to your wiring diagram, from my own experience with the DPD overhead system:
1) Split the compressor start signal to each of the fan switches and use a diode between each fan switch and the start signal. This will allow the compressor to run with either the left, right, or both fans running inside the bus. The overhead system puts a lot of cold air in your face, and sometimes I have found that I just have to turn the driver side fan completely off, if your passenger wants to run their side on full blast. It gets too cold inside otherwise.
2) Put a 3 second delay timer on your main power circuit. This will allow you to leave all your AC switch settings, just the way you like them, and start/stop the engine without changing anything when you're making short trips. The delay timer will give just enough time for your engine to start and settle into steady idle before it gets socked with the electrical demands of your AC system and the extra load of the compressor. I described this circuit in my AC build thread
Adding DPD overhead Air Conditioning to a type 2 Bus |
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