| A/C Help Needed [message #131183] |
Mon, 20 June 2011 22:26  |
hal kading
Messages: 642
Registered: February 2004
Location: Las Cruces NM
Karma: 4
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Senior Member |
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The updated dash air on our Buskirk Stretch doesn't cool hardly at all. It had a second evaporator blower unit under the couch behind the driver and a later compressor, GM HT6 with R134a. System was evacuated and Duracool installed. Still not much cooling. Flushed system, installed new expansion valves, filter dryer and a new compressor, evacuated and installed fresh Duracool, 3 cans. Output air is about 65* F. Low side pressure now at 30 psi, didn't cool at 20 psi (two cans) when filling and high side pressure only about 130 psi. Looking for suggestions and comments.
Hal Kading 78 Buskirk Stretch Las Cruces NM
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| Re: [GMCnet] A/C Help Needed [message #131192 is a reply to message #131183] |
Mon, 20 June 2011 23:32  |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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should make about a 40 deg. change from input to output.
gene
On Mon, Jun 20, 2011 at 8:26 PM, Hal Kading <halkading@fastwave.biz> wrote:
>
>
> The updated dash air on our Buskirk Stretch doesn't cool hardly at all. It
> had a second evaporator blower unit under the couch behind the driver and a
> later compressor, GM HT6 with R134a. System was evacuated and Duracool
> installed. Still not much cooling. Flushed system, installed new expansion
> valves, filter dryer and a new compressor, evacuated and installed fresh
> Duracool, 3 cans. Output air is about 65* F. Low side pressure now at 30
> psi, didn't cool at 20 psi (two cans) when filling and high side pressure
> only about 130 psi. Looking for suggestions and comments.
>
> Hal Kading 78 Buskirk Stretch Las Cruces NM
> _______________________________________________
> GMCnet mailing list
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Gene Fisher -- 74-23,77PB/ore/ca
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| Re: A/C Help Needed [message #131197 is a reply to message #131183] |
Tue, 21 June 2011 00:36 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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| Hal Kading wrote on Mon, 20 June 2011 22:26 |
The updated dash air on our Buskirk Stretch doesn't cool hardly at all. It had a second evaporator blower unit under the couch behind the driver and a later compressor, GM HT6 with R134a. System was evacuated and Duracool installed. Still not much cooling. Flushed system, installed new expansion valves, filter dryer and a new compressor, evacuated and installed fresh Duracool, 3 cans. Output air is about 65* F. Low side pressure now at 30 psi, didn't cool at 20 psi (two cans) when filling and high side pressure only about 130 psi. Looking for suggestions and comments.
Hal Kading 78 Buskirk Stretch Las Cruces NM
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I hope you are saying 20PSI at 1500 rpm. I think you do not have enough Duracool. It should take more than 3 cans to run two evaporators.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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