[DeTomaso] front condensor question

Forest Goodhart forestg at att.net
Tue Aug 5 16:09:35 EDT 2014 

There are a couple ways to do this. I used to use a trinary switch that parallels the temperature senders to turn on both fans when the head pressure reaches about 280#. This worked fine for years and would still be except that the temperature switch for the radiator failed so I replaced the system with Pantera Electronics fan controller that has an AC input that brings both fans on at full speed. This is still activated by the trinary switch. I see no benefit to staging the fans. If only one is required having them both on means that they will cycle off sooner.
The factory two sensors were originally both reading the temperature of coolant leaving the radiator due to the vertical baffle. The later radiators with horizontal baffles screws this all up but most people don't understand this and many don't want to.
If I were you I would either use the existing condenser fan relay to parallel the temperature switches or install a trinary switch connected in parallel with the radiator sensor.
Good luck
Forest
 

________________________________
 From: Jack DeRyke via DeTomaso <detomaso at poca.com>
To: boyd411 at gmail.com 
Cc: detomaso at poca.com 
Sent: Tuesday, August 5, 2014 12:10 PM
Subject: Re: [DeTomaso] front condensor question
  

   I'm assuming the fans are being thermostatically controlled and with a
   front mount A/C, one fan should be running whenever the compressor runs
   regardless of engine temp or thermostats. Wire it to do this using a
   parallel conection. Most use the 'unused' console switch to do this.

   -----Original Message-----
   From: Boyd Casey <boyd411 at gmail.com>
   To: Jack DeRyke <jderyke at aol.com>
   Cc: detomaso <detomaso at poca.com>
   Sent: Tue, Aug 5, 2014 12:01 pm
   Subject: Re: [DeTomaso] front condensor question



   If both radiator fans run and AC switch is limited to controlling the
   compressor won't that work? Sometimes my car needs both sucker fans to
   maintain correct engine operating temp. If the one fan is controlled by
   the compressor switch wouldn't that limit sufficent radiator cooling to
   times when AC was also turned on?
   On Tue, Aug 5, 2014 at 2:53 PM, <[1]jderyke at aol.com> wrote:

   When I moved ours 10 yrs ago, the condenser sits 1" away from the main
   rad, with the gap filled with closed-cell urethane foam. Custom
   brackets hold it in position and both rad and condenser are removable
   as a unit. Shrouded sucker fans are the only logical solution. If the
   condenser is displaced to the right side, wire that one fan to come on
   when the compressor starts. Std length hoses will fit once you re-rout
   them. The only problem is placing the dryer so its sight-glass is
   visible, so I used an aluminum semi truck dryer that's 2" shorter than
   std & it fits under the front hood, in the unused rt corner near the
   battery. Some drilling is necessary.

   -----Original Message-----
   From: Boyd Casey <[2]boyd411 at gmail.com>
   To: detomaso <[3]detomaso at poca.com>
   Sent: Mon, Aug 4, 2014 7:50 pm
   Subject: [DeTomaso] front condensor question
   When one moves the condenser from the rear to the front of the Pantera
   do you place it in front of the radiator? Do you use only the sucker
   fans for the radiator to cool the radiator and the condenser? I know
   this has been discussed but I didn't remember the facts.
   Thanks,
   Boyd

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References

   1. mailto:jderyke at aol.com
   2. mailto:boyd411 at gmail.com
   3. mailto:detomaso at poca.com
   4. mailto:DeTomaso at poca.com
   5. http://poca.com/mailman/listinfo/detomaso_poca.com


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-------------- next part --------------
   There are a couple ways to do this. I used to use a trinary switch that
   parallels the temperature senders to turn on both fans when the head
   pressure reaches about 280#. This worked fine for years and would still
   be except that the temperature switch for the radiator failed so I
   replaced the system with Pantera Electronics fan controller that has an
   AC input that brings both fans on at full speed. This is still
   activated by the trinary switch. I see no benefit to staging the fans.
   If only one is required having them both on means that they will cycle
   off sooner.
   The factory two sensors were originally both reading the temperature of
   coolant leaving the radiator due to the vertical baffle. The later
   radiators with horizontal baffles screws this all up but most people
   don't understand this and many don't want to.
   If I were you I would either use the existing condenser fan relay to
   parallel the temperature switches or install a trinary switch connected
   in parallel with the radiator sensor.
   Good luck
   Forest
   From: Jack DeRyke via DeTomaso <detomaso at poca.com>
   To: boyd411 at gmail.com
   Cc: detomaso at poca.com
   Sent: Tuesday, August 5, 2014 12:10 PM
   Subject: Re: [DeTomaso] front condensor question
     I'm assuming the fans are being thermostatically controlled and with
   a
     front mount A/C, one fan should be running whenever the compressor
   runs
     regardless of engine temp or thermostats. Wire it to do this using a
     parallel conection. Most use the 'unused' console switch to do this.
     -----Original Message-----
     From: Boyd Casey <[1]boyd411 at gmail.com>
     To: Jack DeRyke <[2]jderyke at aol.com>
     Cc: detomaso <[3]detomaso at poca.com>
     Sent: Tue, Aug 5, 2014 12:01 pm
     Subject: Re: [DeTomaso] front condensor question
     If both radiator fans run and AC switch is limited to controlling the
     compressor won't that work? Sometimes my car needs both sucker fans
   to
     maintain correct engine operating temp. If the one fan is controlled
   by
     the compressor switch wouldn't that limit sufficent radiator cooling
   to
     times when AC was also turned on?
     On Tue, Aug 5, 2014 at 2:53 PM, <[1][4]jderyke at aol.com> wrote:
     When I moved ours 10 yrs ago, the condenser sits 1" away from the
   main
     rad, with the gap filled with closed-cell urethane foam. Custom
     brackets hold it in position and both rad and condenser are removable
     as a unit. Shrouded sucker fans are the only logical solution. If the
     condenser is displaced to the right side, wire that one fan to come
   on
     when the compressor starts. Std length hoses will fit once you
   re-rout
     them. The only problem is placing the dryer so its sight-glass is
     visible, so I used an aluminum semi truck dryer that's 2" shorter
   than
     std & it fits under the front hood, in the unused rt corner near the
     battery. Some drilling is necessary.
     -----Original Message-----
     From: Boyd Casey <[2][5]boyd411 at gmail.com>
     To: detomaso <[3][6]detomaso at poca.com>
     Sent: Mon, Aug 4, 2014 7:50 pm
     Subject: [DeTomaso] front condensor question
     When one moves the condenser from the rear to the front of the
   Pantera
     do you place it in front of the radiator? Do you use only the sucker
     fans for the radiator to cool the radiator and the condenser? I know
     this has been discussed but I didn't remember the facts.
     Thanks,
     Boyd
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   DeTomaso mailing list
   [4][7]DeTomaso at poca.com
   [5][8]http://poca.com/mailman/listinfo/detomaso_poca.com
   References
     1. mailto:[9]jderyke at aol.com
     2. mailto:[10]boyd411 at gmail.com
     3. mailto:[11]detomaso at poca.com
     4. mailto:[12]DeTomaso at poca.com
     5. [13]http://poca.com/mailman/listinfo/detomaso_poca.com
   _______________________________________________
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   DeTomaso mailing list
   [14]DeTomaso at poca.com
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References

   1. mailto:boyd411 at gmail.com
   2. mailto:jderyke at aol.com
   3. mailto:detomaso at poca.com
   4. mailto:jderyke at aol.com
   5. mailto:boyd411 at gmail.com
   6. mailto:detomaso at poca.com
   7. mailto:DeTomaso at poca.com
   8. http://poca.com/mailman/listinfo/detomaso_poca.com
   9. mailto:jderyke at aol.com
  10. mailto:boyd411 at gmail.com
  11. mailto:detomaso at poca.com
  12. mailto:DeTomaso at poca.com
  13. http://poca.com/mailman/listinfo/detomaso_poca.com
  14. mailto:DeTomaso at poca.com
  15. http://poca.com/mailman/listinfo/detomaso_poca.com

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