Planning new house build with SHAC based system. Best HVAC solution?

Discussion in 'General Discussion' started by MarkB, Feb 8, 2019.

  1. MarkB

    MarkB

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    I'm planning a SHAC based system for a house build starting later this year. Each room will have an eDLT, and I'd like use them to control ducted AC.

    Any recommentations for the best way to do this? No decisions have been made yet as to which brand of AC to go with, so if any manufacturer has native C-Bus compatibility that would be ideal. I found an article regarding Panasonic 2018 units that states:

    "For residential applications, Panasonic Ducted Air Conditioning and Mini FSV (VRF) will become ready-to-integrate to Clipsal's C-Bus control and also the Push home automation system"

    Couldn't find any more info though...

    I've also seen CoolMasterNet mentioned a few times but it seems an expensive way of doing it.

    Any advice would be much appreciated.
     
    MarkB, Feb 8, 2019
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  2. MarkB

    MarkB

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    So, I've been looking more into Modbus compatible products and found a company called IntesisBox that makes a number of Modbus interfaces for HVAC units. A unit to interface with Panasonic domestic AC is 210 euro....

    https://www.intesisbox.com/en/modbus-hvac/gateways/
     
    MarkB, Feb 9, 2019
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  3. MarkB

    jboer

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    This is where modbus is perfect, at the end of the day you just want to be able to set the setpoint and have On/Off control on your AC yeah? And then just switch a zone motor in and out from your eDLTs? You could do that with most systems these days.
     
    jboer, Feb 9, 2019
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  4. MarkB

    Dave_F

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    Hey Mark,

    Did you have any luck with the Modbus unit? Have you installed it and able to turn your AC on and off from any Key?
     
    Dave_F, Nov 8, 2019
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  5. MarkB

    MarkB

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    Hi Dave,

    Build still hasn't started yet, and although I have been testing a few bits and pieces out, the AC interface isn't one of them. I had a small win yesterday testing out a modbus temp sensor with the NAC and it wasn't too difficult to get working so I don't expect there would be any issues with the intesisbox product.
     
    MarkB, Nov 8, 2019
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  6. MarkB

    Dave_F

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    Ok perfect. I am just getting quotes to install AC, but none of them will say that it will communicate with C-bus.

    Like jboer says above, I only really want to be able to turn it on or off and possibly the fan setting. The setpoint would most likely stay the same. So I will just get someone to install it and ensure that it can monitor the temp in each zone rather than just one temperature sensor for the full house causing hot or cold zones. Then once that's done, I can install the Modbus unit and try to program it.
     
    Dave_F, Nov 9, 2019
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  7. MarkB

    MarkB

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    I'm going to take it a step further and have the NAC control variable damper actuators for each room. This will allow some degree of individual temp control.
     
    MarkB, Nov 9, 2019
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