C-Bus Thermostats

Discussion in 'C-Bus Wired Hardware' started by znelbok, Oct 15, 2006.

  1. znelbok

    znelbok

    Joined:
    Aug 3, 2004
    Messages:
    1,151
    Likes Received:
    17
    I was looking at the new thermostats that are on page 23 of this
    http://www.cbusforums.com/forums/attachment.php?attachmentid=680&d=1160892301
    I have next to now experience with HVAC so what does it mean when it says single zone with 5 relays (I understand the zone part) relays for HVAC plant control only, not accessible via C-Bus.

    Are these the relays that control the outdoor unit?

    Mick
     
    znelbok, Oct 15, 2006
    #1
  2. znelbok

    Darpa

    Joined:
    Apr 30, 2006
    Messages:
    426
    Likes Received:
    0
    Location:
    Australia
    My understanding of what the wording of that states is that the relays inside the thermostat units, that would be wired into the Air Con / Heating / etc, are only directly controllable via the thermostats themselves, and that commands via C-Bus cannot directly control these relays.

    I'm ASSUMING (nothing more) that this means that you may POSSIBLY be able to control the settings of the thermostat via C-Bus, but not directly turn the devices connected to the thermostat relays on or off.

    Just my interpretation... :)
     
    Darpa, Oct 15, 2006
    #2
  3. znelbok

    znelbok

    Joined:
    Aug 3, 2004
    Messages:
    1,151
    Likes Received:
    17
    Ahh - That actually makes sense. Direct control of the relays would probably not be good. I guess the thinking is you adjust the settings and then the thermostat makes the necessary changes via the relays.

    Wonder when we will see this product and its pricing?
     
    znelbok, Oct 15, 2006
    #3
  4. znelbok

    Darpa

    Joined:
    Apr 30, 2006
    Messages:
    426
    Likes Received:
    0
    Location:
    Australia
    The phrase "Ask no silly questions, get no stupid answers" comes to mind :p
     
    Darpa, Oct 16, 2006
    #4
  5. znelbok

    Sergio

    Joined:
    Apr 18, 2005
    Messages:
    28
    Likes Received:
    0
    relay functions

    I suppose functions of these relays would be:
    1. fan control
    2. heat stage 1
    3. heat stage 2
    4. cool stage 1
    5. cool stage 2

    Direct control the relays is not good, because wrong programming will case to damage HVAC equipment or overheat/overcool your room!
     
    Last edited by a moderator: Oct 16, 2006
    Sergio, Oct 16, 2006
    #5
  6. znelbok

    ashleigh Moderator

    Joined:
    Aug 4, 2004
    Messages:
    2,397
    Likes Received:
    26
    Location:
    Adelaide, South Australia
    Sergio:

    Yes, this would be a typical use for the relays.

    Darpa:

    (Who wrote: My understanding of what the wording of that states is that the relays inside the thermostat units, that would be wired into the Air Con / Heating / etc, are only directly controllable via the thermostats themselves, and that commands via C-Bus cannot directly control these relays.

    I'm ASSUMING (nothing more) that this means that you may POSSIBLY be able to control the settings of the thermostat via C-Bus, but not directly turn the devices connected to the thermostat relays on or off.)

    YES. The relays are controlled by the thermostat. Having a standard cbus device control the relays that in turn control the HVAC plant would be a bad thing.

    The thermostat CAN ALSO control a standard cbus output unit so that you can use those relays instead of built-in relays, should that be desired.

    NOTE that the internal relays are designed for HVAC use, they are 24 V ac rated. They are NOT standard cbus relays suitable for switching mains loads at a gazillion amps. They MUST NOT be connected to the 240V mains.

    As to when: Soon.

    Pricing: Call your sales rep.
     
    ashleigh, Oct 17, 2006
    #6
  7. znelbok

    KevinH

    Joined:
    Aug 3, 2004
    Messages:
    171
    Likes Received:
    0
    Location:
    Yorkshire. UK
    Any chance of posting a link to the manual or further information on these ?

    Kevin
     
    KevinH, Oct 18, 2006
    #7
  8. znelbok

    ashleigh Moderator

    Joined:
    Aug 4, 2004
    Messages:
    2,397
    Likes Received:
    26
    Location:
    Adelaide, South Australia
    Sorry, no. Manuals not ready yet.
     
    ashleigh, Oct 18, 2006
    #8
  9. znelbok

    Sergio

    Joined:
    Apr 18, 2005
    Messages:
    28
    Likes Received:
    0
    Wall box for C-Bus Thermostat?

    Can we have information about wall boxes for C-Bus Thermostat for prewiring? Standard or non standard?
     
    Sergio, Oct 19, 2006
    #9
  10. znelbok

    ashleigh Moderator

    Joined:
    Aug 4, 2004
    Messages:
    2,397
    Likes Received:
    26
    Location:
    Adelaide, South Australia
    Standard.
     
    ashleigh, Oct 20, 2006
    #10
  11. znelbok

    Marvin

    Joined:
    Sep 10, 2006
    Messages:
    1
    Likes Received:
    0
    Location:
    Duabai
    Do we have the manual available for thermostat?

    I'am installing/programing C-bus in a couple of months now and I enjoys working with c-bus, do have the manual available for the thermostat?
    Doest thermostat set in a C-bus network? and also need supply from the network? is'nt it stand alone?.
     
    Marvin, Dec 13, 2006
    #11
  12. znelbok

    2SC

    Joined:
    Oct 10, 2006
    Messages:
    345
    Likes Received:
    0
    Location:
    Athens, Greece
    No Yes Yes No

    Although I not the most appropriate to answer:
    No. Not yet a manual available.
    Yes of course. It's a c-bus product.
    Yes (I think:confused: )
    No of course. It's a c-bus product.
     
    2SC, Dec 13, 2006
    #12
  13. znelbok

    Newman

    Joined:
    Aug 3, 2004
    Messages:
    2,203
    Likes Received:
    0
    Location:
    Adelaide, South Australia
    The thermostat derives all it's power from the C-Bus network and it must be part of a C-Bus network to operate.
     
    Newman, Dec 13, 2006
    #13
Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Similar Threads

  1. controlling devireg 550 thermostats

  2. C-Bus Thermostats

  3. New 4 zone thermostats

  4. Where to look for the release notification for CBUS Thermostats

  5. C-Bus Thermostats Released for sale

  6. C-Bus Thermostats

  7. C-Bus thermostats

  8. C-Bus to Coolmaster using thermostats and PAC controller

Loading...