[DeTomaso] A/C condensor fan test results

[Tomas Gunnarsson]

It's been many years since I replaced the stock thermostat but
technically they should not be very different in operation. The stock
thermostat uses a sensor in the outlet of the heater box. You set the
knob to provide a certain outlet air temp. This means that if the outlet
air is too warm it will keep the ac running full time. This could happen
even if you set the thermostat to a temp way above 0 C.
 
Tomas
 

<-----Ursprungligt Meddelande----->
From: Thomas Tornblom [thomas at hax.se]
Sent: 5/5/2013 9:53:24 PM
To: detomaso at poca.com
Subject: Re: [DeTomaso] A/C condensor fan test results

2013-05-05 19:35, Tomas Gunnarsson skrev:
> The original controller is nothing but a thermostatic on-off switch.
> There is also no other way to run the compressor than on/off. As long
as
> the system has over-cooling capacity the switch will turn on and off
but
> when it's not enough to keep the temp down it never stops. The
solution
> to de-icing the evaporator is as simple as turning the AC off and
> keeping the heater fan running.

But isn't the bulb for the thermostat mounted to the evaporator? So by 
setting the switching point above freezing it should never ice, no?

I know that you have a simple room thermostat, which does not provide 
any means of sensing if the evaporator is getting too cold.

>
> Tomas

Thomas

>
> <-----Ursprungligt Meddelande----->
> From: MikeLDrew at aol.com [MikeLDrew at aol.com]
> Sent: 5/5/2013 7:02:08 PM
> To: tmshinro at aol.com; detomaso at poca.com
> Subject: Re: [DeTomaso] A/C condensor fan test results
>
> In a message dated 5/5/13 6 01 38, tmshinro at aol.com writes:
>
>
>> Just curious what is the solution to the evaporator icing up...dial
in
>> some heat from the heater?
>>
>>
>
>>>> ...or select a slightly warmer setting on the A/C temp control.
> People
> treat it like an on/off switch, but it is a rheostat, and you can
select
> an
> intermediate setting which might enable it to run continuously?
>
> Mike
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-- 
Real life: Thomas Törnblom Email: thomas at hax.se
Snail mail: Banvallsvägen 14 Phone: +46 18 32 31 18
S - 754 40 Uppsala, Sweden Mobile: +46 76 209 8320

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