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  1. #1
    Join Date
    Sep 2007
    Rep Power

    I do know what I am doing Honest!

    OK, so the other day I am on-site carrying out a service visit.
    Whilst checking out the control cabinet and it's Wiring I noted an aged Hawco Thermostatic controller which was set at about 5 degrees above the coldstore chamber I was recording.
    Underneath this was written that the in-store pt100 probe was reading High!

    Later on I realised that the condensing unit for this system was permanently on and only went into pump-down when I selected the manual pump-down. Strange!

    Is it working? A quick rotation through the temps and Zilch/ Nothing!

    So later that day I am reporting to the Engineering Manager and his Senior (Very Experienced) Engineer.
    I advise that the control Stat for that particular system was malfunctioning.
    Explaining that irrespective of setting the system refused to pump-down.

    To which the Senior Engineer laughed and explained that there was a room-stat which controlled the system.
    The one that I was looking at was in fact a stat controlling an external beacon.
    Which was there to highlight any temperature issue as the store was usually
    unmanned. All that I had been doing was to operate the external beacon.

    "But no-one advised me there was a problem or responded" I replied.

    "Nah! They all ignore the Beacon" !!

    Says it all really.

  2. #2
    Join Date
    Feb 2008
    Rep Power

    Re: I do know what I am doing Honest!

    and if it had a bell on it thay will prob mute it

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