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Date:         Mon, 10 Jul 2006 23:14:44 -0400
Reply-To:     Kim Brennan <kimbrennan@MAC.COM>
Sender:       Vanagon Mailing List <>
From:         Kim Brennan <kimbrennan@MAC.COM>
Subject:      Re: AC Thermostat
Comments: To: John Bange <jbange@GMAIL.COM>
In-Reply-To:  <>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed

Most household domestic AC units (when working correctly) will not lower the temperature below 32 F, for the simple reason that the condensation will freeze at that temperature, which will ice up the heat exchanger (evaporator). If an AC is icing up, it is usually due to too little refrigerant. The low pressure switches on our Vanagons should prevent that from occurring. However, if the ambient air temperature isn't very warm but has a high humidity factor, you can ice up (this usually should only occur in ambient temps in the 60s or lower.)

On Jul 10, 2006, at 4:08 PM, John Bange wrote:

> Anyone know offhand what temperature the AC thermostat "clicks" at > when you > set the system to max cold? Maybe I'm being ridiculous, but my air > outlet > temperature is only 46 degrees 6 inches in front of the evaporator > and the > thermostat cycles the compressor to keep it there. I guess it > shouldn't go > much lower, as freezing becomes a problem, but couldn't it go > lower? I'm > working on a half-assed scheme to pipe it up to the front vents and > I want > it as cold as I can reasonably get it... > -- > John Bange > '90 Vanagon - "Geldsauger"

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