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HVAC application — Parallax Forums

HVAC application

ArchiverArchiver Posts: 46,084
edited 2001-02-05 13:33 in General Discussion
Has anybody used the Basic Stamp for multi-zone residential heating/air
conditioning applications?

I would like to try this, but could use some pointers on the basic
multi-zone control algorithms. If anybody knows offhand, or can forward me a
URL, I would appreciate it greatly. One floor on my house is either freezing
or frying, requiring a trip up into the attic to manipulate damper to try to
adjust.

Regards,

Rob Weinstock
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2001-01-29 12:02
    >Has anybody used the Basic Stamp for multi-zone residential heating/air
    >conditioning applications?
    >
    >I would like to try this, but could use some pointers on the basic
    >multi-zone control algorithms. If anybody knows offhand, or can forward me a
    >URL, I would appreciate it greatly. One floor on my house is either freezing
    >or frying, requiring a trip up into the attic to manipulate damper to try to
    >adjust.


    Check out the Industrial Applications download at STAMPSINCLASS.COM. There
    is a nice temperature control tutorial that you shouls be able to adapt to your
    project.

    Carl
  • ArchiverArchiver Posts: 46,084
    edited 2001-01-29 21:32
    >Check out the Industrial Applications download at STAMPSINCLASS.COM. There
    >is a nice temperature control tutorial that you shouls be able to adapt to
    >your
    >project.

    Thanks, I'll check those out. Does anybody know a good source for motorized
    dampers? The ideal ones would have to have limit switches, overcurrent
    trips, etc. Home Depot had absolutely no idea what I was talking about when
    I said I wanted multi-zone HVAC in the house.

    Thanks,

    Rob Weinstock
    _________________________________________________________________
    Get your FREE download of MSN Explorer at http://explorer.msn.com
  • ArchiverArchiver Posts: 46,084
    edited 2001-01-29 22:15
    Honeywell used to make some nice ones, quite large and a priced the same.
    110V but they could move any damper I ever came across.

    Dan Sherman WB7N
    dsherman@s...
    Original Message
    From: Rob Weinstock [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=OmZ6tVF29GyVSD4jHUorNDGgsnhagHT8V5focKMcysf8T3I7G7akStjaMds1Rm25o7shNP-N_xk2MeaCVg]weinstro@h...[/url
    Sent: Monday, January 29, 2001 2:32 PM
    To: basicstamps@yahoogroups.com
    Subject: Re: [noparse][[/noparse]basicstamps] HVAC application

    >Check out the Industrial Applications download at STAMPSINCLASS.COM. There
    >is a nice temperature control tutorial that you shouls be able to adapt to
    >your
    >project.

    Thanks, I'll check those out. Does anybody know a good source for motorized
    dampers? The ideal ones would have to have limit switches, overcurrent
    trips, etc. Home Depot had absolutely no idea what I was talking about when
    I said I wanted multi-zone HVAC in the house.

    Thanks,

    Rob Weinstock
    _________________________________________________________________
    Get your FREE download of MSN Explorer at http://explorer.msn.com
  • ArchiverArchiver Posts: 46,084
    edited 2001-01-29 22:43
    Send me your details and I'll send you data sheets.

    We carry a pretty complete line of electronic actuators.
    4-20, 0-10, no serical as yet. end switches, feedback pots, etc.

    Typically we sell to Honeywell, or commercial and industrial
    contractors. Residential units are rare as one rarely does a
    spliting of a heater on a house. It can be done.

    McMaster Carr will also offer similar units. Expect some sticker
    shock as a heavey duct unit can cost betwen $100-200.

    Dave



    --- In basicstamps@y..., dsherman@s... wrote:
    > Honeywell used to make some nice ones, quite large and a priced the
    same.
    > 110V but they could move any damper I ever came across.
    >
    > Dan Sherman WB7N
    > dsherman@s...
    >
    >
    Original Message
    > From: Rob Weinstock [noparse][[/noparse]mailto:weinstro@h...]
    > Sent: Monday, January 29, 2001 2:32 PM
    > To: basicstamps@y...
    > Subject: Re: [noparse][[/noparse]basicstamps] HVAC application
    >
    > >Check out the Industrial Applications download at
    STAMPSINCLASS.COM. There
    > >is a nice temperature control tutorial that you shouls be able to
    adapt to
    > >your
    > >project.
    >
    > Thanks, I'll check those out. Does anybody know a good source for
    motorized
    > dampers? The ideal ones would have to have limit switches,
    overcurrent
    > trips, etc. Home Depot had absolutely no idea what I was talking
    about when
    > I said I wanted multi-zone HVAC in the house.
    >
    > Thanks,
    >
    > Rob Weinstock
    > _________________________________________________________________
    > Get your FREE download of MSN Explorer at http://explorer.msn.com
  • ArchiverArchiver Posts: 46,084
    edited 2001-01-29 23:09
    Yes, there are some great products out there. The problem you just
    found out is that extreemly few residental projects use duct
    dampers. They run $100-$200 per unit depending on your accessories.

    You are in the territory of commercial/industrial automation controls
    contracts, and way above your home heating contractors. What you are
    asking is simple, but can cost some $$$.

    I'll send you some data sheets from the units we carry. Typically a
    small acutator will move a 48" x 48" damper. Like I said, commerical
    products.

    they can receive a voltage to open/voltage to close, no voltage,
    stop, or your typical 4-20mADC or 0-5/0-10VDC, no serial as yet.
    Options include end switches, feed back pot's, etc.

    The quality is what you expect for the money.

    You probably can find similar units at McMaster Carr. This type of
    thing is way beyound the home depot crowd. But then again, so are
    Stamps!

    Dave




    --- In basicstamps@y..., dsherman@s... wrote:
    > Honeywell used to make some nice ones, quite large and a priced the
    same.
    > 110V but they could move any damper I ever came across.
    >
    > Dan Sherman WB7N
    > dsherman@s...
    >
    >
    Original Message
    > From: Rob Weinstock [noparse][[/noparse]mailto:weinstro@h...]
    > Sent: Monday, January 29, 2001 2:32 PM
    > To: basicstamps@y...
    > Subject: Re: [noparse][[/noparse]basicstamps] HVAC application
    >
    > >Check out the Industrial Applications download at
    STAMPSINCLASS.COM. There
    > >is a nice temperature control tutorial that you shouls be able to
    adapt to
    > >your
    > >project.
    >
    > Thanks, I'll check those out. Does anybody know a good source for
    motorized
    > dampers? The ideal ones would have to have limit switches,
    overcurrent
    > trips, etc. Home Depot had absolutely no idea what I was talking
    about when
    > I said I wanted multi-zone HVAC in the house.
    >
    > Thanks,
    >
    > Rob Weinstock
    > _________________________________________________________________
    > Get your FREE download of MSN Explorer at http://explorer.msn.com
  • ArchiverArchiver Posts: 46,084
    edited 2001-01-29 23:17
    >Thanks, I'll check those out. Does anybody know a good source for motorized
    >dampers? The ideal ones would have to have limit switches, overcurrent
    >trips, etc. Home Depot had absolutely no idea what I was talking about when
    >I said I wanted multi-zone HVAC in the house.
    >

    Try grainger.com

    Carl
  • ArchiverArchiver Posts: 46,084
    edited 2001-01-30 00:41
    Try http:\\www.smarthome.com search for "damper". They have for 6" to 16"
    ducts at $90 to $140.
    Original Message
    From: carl@g... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=cyVUpvFxP07g9_Hxe-D-uoZiuh-hbLDr8md1jvZooY_dIv52H-VtTwPaGmgzPvR1ipqb]carl@g...[/url
    Sent: Monday, January 29, 2001 4:18 PM
    To: basicstamps@yahoogroups.com
    Subject: Re: [noparse][[/noparse]basicstamps] HVAC application


    >Thanks, I'll check those out. Does anybody know a good source for motorized

    >dampers? The ideal ones would have to have limit switches, overcurrent
    >trips, etc. Home Depot had absolutely no idea what I was talking about when

    >I said I wanted multi-zone HVAC in the house.
    >

    Try grainger.com

    Carl
  • ArchiverArchiver Posts: 46,084
    edited 2001-01-30 05:44
    >I'll send you some data sheets from the units we carry. Typically a
    >small acutator will move a 48" x 48" damper. Like I said, commerical
    >products.

    That would be great. I believe I need dampers in the 12" to 24" range.

    Regards,

    Rob
    _________________________________________________________________
    Get your FREE download of MSN Explorer at http://explorer.msn.com
  • ArchiverArchiver Posts: 46,084
    edited 2001-01-30 14:29
    The small residential dampers don't need really large motors. I have
    heard that some contractors use tiny gear motors to open and close
    the small dampers.

    If you have never tried controlling room temperature, it's simple,
    open the damper, wait about 20 minutes, check the temperature, if
    it's warm, close the damper, if it's not warm yet.... Space/room
    temperature control is very sloppy. don't expect tight or fast
    control. If you data logged you space now, you'll find a 2° F change
    before any control action (heater ON or heater OFF)

    This morning I remembered TEMP-A-TROL. They sell multi zone
    controlls , dampers, actuators, etc to anybody. And in the sizes you
    are looking for. Better prices than I could get you.

    a dealer??
    http://www.controlsdepot.com/trolatemp.html
    home page of Temp-A-trol
    http://www.trolatemp.com/







    --- In basicstamps@y..., "Witherspoon, Michael J"
    <michael.j.witherspoon@i...> wrote:
    > Try http:\\www.smarthome.com search for "damper". They have for 6"
    to 16"
    > ducts at $90 to $140.
    >
    >
    Original Message
    > From: carl@g... [noparse][[/noparse]mailto:carl@g...]
    > Sent: Monday, January 29, 2001 4:18 PM
    > To: basicstamps@y...
    > Subject: Re: [noparse][[/noparse]basicstamps] HVAC application
    >
    >
    > >Thanks, I'll check those out. Does anybody know a good source for
    motorized
    >
    > >dampers? The ideal ones would have to have limit switches,
    overcurrent
    > >trips, etc. Home Depot had absolutely no idea what I was talking
    about when
    >
    > >I said I wanted multi-zone HVAC in the house.
    > >
    >
    > Try grainger.com
    >
    > Carl
  • ArchiverArchiver Posts: 46,084
    edited 2001-02-04 21:41
    I think I saw some at Smarthome.com. I have no idea about the quality.

    I don't know what kind of furnace you have, but restricting the airflow may
    cause problems - burned out elements, cracked heat exchanger, fire, CO
    poisining, etc. Also, your insurance company may have opinions regarding
    this modification. Good luck.

    John



    >From: "Rob Weinstock" <weinstro@h...>
    >Reply-To: basicstamps@yahoogroups.com
    >To: basicstamps@yahoogroups.com
    >Subject: [noparse][[/noparse]basicstamps] HVAC application
    >Date: Sun, 28 Jan 2001 18:31:08
    >
    >Has anybody used the Basic Stamp for multi-zone residential heating/air
    >conditioning applications?
    >
    >I would like to try this, but could use some pointers on the basic
    >multi-zone control algorithms. If anybody knows offhand, or can forward me
    >a
    >URL, I would appreciate it greatly. One floor on my house is either
    >freezing
    >or frying, requiring a trip up into the attic to manipulate damper to try
    >to
    >adjust.
    >
    >Regards,
    >
    >Rob Weinstock
    >_________________________________________________________________
    >Get your FREE download of MSN Explorer at http://explorer.msn.com
    >
    >
    >
    >

    _________________________________________________________________
    Get your FREE download of MSN Explorer at http://explorer.msn.com
  • ArchiverArchiver Posts: 46,084
    edited 2001-02-05 13:33
    >
    > I think I saw some at Smarthome.com. I have no idea about the quality.
    >
    > I don't know what kind of furnace you have, but restricting the airflow
    > may cause problems - burned out elements, cracked heat exchanger, fire, CO
    > poisining, etc. Also, your insurance company may have opinions regarding this
    > modification. Good luck.
    >
    > John
    Smarthome also has a unit(non controlled) that opens under excess
    pressure.
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