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  1. #1
    Join Date
    Apr 2012
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    Talking Six's Car Alarm / RTU Alarm Hybrid Circa 2008

    I did this before the commercial alarms were available. One of our Customers lost every condenser coil on their roof twice and this is what I came up with almost 4 years ago. Still operational.

    Just a few of the 17 package units that are alarmed up.



    Control wiring. So basically a 24v holding relay getting power from unit transformer wired in series with two loss of charger switches ( Y1 and Y2 ) on the liquid lines that will trigger the timer which is set up as a "one shot" timer to activate the siren for an hour. Also killing the disconnect will drop out the relay triggering the siren too.

    Holding relay is DPDT so I use the other set of contacts to trigger the building silent alarm by running a two conductor from every unit in series above the grid. Any unit will trigger building alarm which is tied into the alarm panel as a dry contact.

    Cutting some of the "obvious" power wires to the timer and to the horn will trigger the horn. Actual power wires for the Horn are well hidden.



    Horn in the Heater section.....it's loud.




    Another pic of the horn. Nice of them to vent the panel for me.




    I know they have commercially available systems now but this was before their time.


    Darth Vader.

  2. #2
    Join Date
    Feb 2006
    Location
    USA
    Posts
    4,381
    I love it!

    Sent from my HTC Sensation 4G using Tapatalk 2

  3. #3
    Join Date
    Feb 2006
    Location
    Phoenix,AZ
    Posts
    2,891
    Sweet!!!!I wish i would have had that on my van last week. $3200 worth of tools gone!!!!

  4. #4
    Join Date
    Apr 2012
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    Paper Street Soap Company
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    Aww thats awful KB.

    Last time that happened to me I was at one of my data centers.

    Customer felt bad about it and replaced everything.

  5. #5
    Join Date
    Apr 2012
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    Quote Originally Posted by hvac wiz 79 View Post
    I love it!

    Sent from my HTC Sensation 4G using Tapatalk 2
    That Vader makes an awesome wall paper too.

    Ive always been a Star Wars fan.

    Just right click and save then open it on your system and make it the wall paper.

  6. #6
    Join Date
    Apr 2012
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    Quote Originally Posted by hvac wiz 79 View Post
    I love it!

    Sent from my HTC Sensation 4G using Tapatalk 2
    That Vader makes an awesome wall paper too.

    Ive always been a Star Wars fan.

    Just right click and save then open it on your system and make it the wall paper.

  7. #7
    Join Date
    Feb 2012
    Location
    Toronto Canada
    Posts
    1,090
    Six That is some Awesome Thinking.
    My Hat is Off to you. You seem like a True Commercial Tech.
    Too Bad you missed the Gravey Train. Thats Ok this Trade Needs stand up guys like you!
    How bad is the copper stealing where your at?

  8. #8
    Join Date
    Apr 2012
    Location
    Paper Street Soap Company
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    2,304
    Quote Originally Posted by OldSchoolMech View Post
    Six That is some Awesome Thinking.
    My Hat is Off to you. You seem like a True Commercial Tech.
    Too Bad you missed the Gravey Train. Thats Ok this Trade Needs stand up guys like you!
    How bad is the copper stealing where your at?
    Thanks for the compliment OldSchool. I try.

    When I installed these we were having a rash of copper thefts but its slowed down.

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