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Patrick Francis
Frequent User
Username: jackpot

Post Number: 282
Registered: 11-2016
Posted on Monday, 26 August, 2019 - 07:49:   Edit PostDelete PostView Post/Check IP
I am trying to figure out if cool (aircon) air is blown onto the windscreen when the aircon is on.
With the aircon on, if I close both bullseyes and the centre vent, and pull the left hand ( upper) air control fully out for maximum quantity to the windscreen, the air does not feel cold blowing on the windscreen.
Anyone know please?
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richard george yeaman
Prolific User
Username: richyrich

Post Number: 1108
Registered: 04-2012
Posted on Monday, 26 August, 2019 - 09:59:   Edit PostDelete PostView Post/Check IP
Patrick I think that part of the system is a demist function usually would be used with warmer air and as your car is 45 years old perhaps that is all it does, But maybe I don't know either, See you in October.


Richard.
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Geoff Wootton
Grand Master
Username: dounraey

Post Number: 2142
Registered: 05-2012
Posted on Monday, 26 August, 2019 - 10:08:   Edit PostDelete PostView Post/Check IP
Hi Patrick

If your car is a "series 1" the refrigerated air will not be blown through the windscreen vents. I got this information from the air conditioning section of the handbook for a 1975 model.

I cannot verify this on my 1974 Shadow as I currently have the heater control box out for refurbishment.

aa
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Patrick Francis
Frequent User
Username: jackpot

Post Number: 283
Registered: 11-2016
Posted on Monday, 26 August, 2019 - 23:41:   Edit PostDelete PostView Post/Check IP
Thanks Guys. I think I agree that refrigerated air is not available through the windscreen vents. Shame really, since refirgerated air is the most efficient at demisting!
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Martin Taylor
Experienced User
Username: martin_taylor

Post Number: 152
Registered: 07-2013
Posted on Wednesday, 28 August, 2019 - 17:59:   Edit PostDelete PostView Post/Check IP
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Martin Taylor
Experienced User
Username: martin_taylor

Post Number: 153
Registered: 07-2013
Posted on Wednesday, 28 August, 2019 - 17:59:   Edit PostDelete PostView Post/Check IP
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Martin Taylor
Experienced User
Username: martin_taylor

Post Number: 154
Registered: 07-2013
Posted on Wednesday, 28 August, 2019 - 18:00:   Edit PostDelete PostView Post/Check IP
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Martin Taylor
Experienced User
Username: martin_taylor

Post Number: 155
Registered: 07-2013
Posted on Wednesday, 28 August, 2019 - 18:01:   Edit PostDelete PostView Post/Check IP
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Martin Taylor
Experienced User
Username: martin_taylor

Post Number: 156
Registered: 07-2013
Posted on Wednesday, 28 August, 2019 - 18:02:   Edit PostDelete PostView Post/Check IP
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Martin Taylor
Experienced User
Username: martin_taylor

Post Number: 157
Registered: 07-2013
Posted on Wednesday, 28 August, 2019 - 18:04:   Edit PostDelete PostView Post/Check IP
Note A in the attached literature would suggest cool air is available to the screen in the first position. My car is still in pieces, anyone up for trying it?
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Patrick Francis
Frequent User
Username: jackpot

Post Number: 285
Registered: 11-2016
Posted on Thursday, 29 August, 2019 - 01:03:   Edit PostDelete PostView Post/Check IP
Love those attachments Martin - good bedtime reading...
Where can I download good clear copies please?
Thanks
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Geoff Wootton
Grand Master
Username: dounraey

Post Number: 2143
Registered: 05-2012
Posted on Thursday, 29 August, 2019 - 01:06:   Edit PostDelete PostView Post/Check IP
Hi Martin

What is the source of this documentation? I am currently refurbing my 74 SS heater/ac system and have not come across such a useful document.
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Jeff McCarthy
Frequent User
Username: jefmac2003

Post Number: 632
Registered: 05-2007
Posted on Thursday, 29 August, 2019 - 02:22:   Edit PostDelete PostView Post/Check IP
I believe the attachments are from a training manual I scanned a while ago. If not they're the same pages. I'll search my computer files tomorrow. If anyone wants clearer more readable/printable copies just pm me with your emails and I'll forward the whole manual.
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Martin Taylor
Experienced User
Username: martin_taylor

Post Number: 158
Registered: 07-2013
Posted on Sunday, 01 September, 2019 - 09:47:   Edit PostDelete PostView Post/Check IP
I think Jeff is correct, I have so much data on these cars but memory fades as to where it was found

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