Schematic Symbol I Am Not Familiar With: Anyone Know Perhaps ?

Discussion in 'Electrical Engineering' started by Bob, Sep 9, 2013.

  1. Bob

    Bob Guest

    Hello,

    Have a forced hot water system for home heating that uses the typical 2
    wire Honeywell thermostat to control a Honeywell RA832A switching relay.

    The switching relay closes the circuit to the thermopile, as well as
    closing the 110 V circuit for the water circulator.

    There is also a transformer that provides 24 V for the thermostat and
    the relay.

    Question:

    Guess I'm dating myself somewhat here, but there is a symbol that I am
    not familiar with in the instruction sheet for it.

    The secondary of the transformer (going to the thermostat) shows what is
    similar tho the common resistor symbol of
    3 points up, and 3 points down from the baseline.

    But this symbol has only 1 point up, 1 point down, and then the return
    to the baseline.

    I don't think it is meant to be a resistor.

    It is drawn close to the relay contact symbols.

    Could it be meant to be the coil for the relay, perhaps ?

    Or,... ?

    Thanks,
    Bob
     
    Bob, Sep 9, 2013
    #1
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  2. Bob

    Tom Biasi Guest

    Re: Schematic Symbol I Am Not Familiar With: Anyone Know Perhaps?

    On 9/9/2013 3:31 PM, Bob wrote:
    > Hello,
    >
    > Have a forced hot water system for home heating that uses the typical 2
    > wire Honeywell thermostat to control a Honeywell RA832A switching relay.
    >
    > The switching relay closes the circuit to the thermopile, as well as
    > closing the 110 V circuit for the water circulator.
    >
    > There is also a transformer that provides 24 V for the thermostat and
    > the relay.
    >
    > Question:
    >
    > Guess I'm dating myself somewhat here, but there is a symbol that I am
    > not familiar with in the instruction sheet for it.
    >
    > The secondary of the transformer (going to the thermostat) shows what is
    > similar tho the common resistor symbol of
    > 3 points up, and 3 points down from the baseline.
    >
    > But this symbol has only 1 point up, 1 point down, and then the return
    > to the baseline.
    >
    > I don't think it is meant to be a resistor.
    >
    > It is drawn close to the relay contact symbols.
    >
    > Could it be meant to be the coil for the relay, perhaps ?
    >
    > Or,... ?
    >
    > Thanks,
    > Bob
    >

    Without seeing it Bob it's difficult to say. Often relay coils are drawn
    using just a rectangle with a lead at each end. Can you see where the
    leads go? Is there a diode across the leads?

    Tom
     
    Tom Biasi, Sep 9, 2013
    #2
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  3. Bob

    J.B. Wood Guest

    Re: Schematic Symbol I Am Not Familiar With: Anyone Know Perhaps?

    On 09/09/2013 03:31 PM, Bob wrote:
    > Hello,
    >
    > Have a forced hot water system for home heating that uses the typical 2
    > wire Honeywell thermostat to control a Honeywell RA832A switching relay.
    >
    > The switching relay closes the circuit to the thermopile, as well as
    > closing the 110 V circuit for the water circulator.
    >
    > There is also a transformer that provides 24 V for the thermostat and
    > the relay.
    >
    > Question:
    >
    > Guess I'm dating myself somewhat here, but there is a symbol that I am
    > not familiar with in the instruction sheet for it.
    >
    > The secondary of the transformer (going to the thermostat) shows what is
    > similar tho the common resistor symbol of
    > 3 points up, and 3 points down from the baseline.
    >
    > But this symbol has only 1 point up, 1 point down, and then the return
    > to the baseline.
    >
    > I don't think it is meant to be a resistor.
    >
    > It is drawn close to the relay contact symbols.
    >
    > Could it be meant to be the coil for the relay, perhaps ?
    >
    > Or,... ?
    >
    > Thanks,
    > Bob
    >

    Hello, and just a thought: After reading and understanding (I think)
    schematics of radios, TVs, and audio components for years, I'm still
    often confused by the schematic symbols for wiring and electric
    components as used by the automotive industry. And then there's those
    "single-point" diagrams used by electric power utilities to denote
    3-phase AC power generation and distribution. Sincerely,

    --
    J. B. Wood e-mail:
     
    J.B. Wood, Sep 13, 2013
    #3
  4. Bob

    Don Kelly Guest

    Re: Schematic Symbol I Am Not Familiar With: Anyone Know Perhaps?

    On 13/09/2013 3:24 AM, J.B. Wood wrote:
    > On 09/09/2013 03:31 PM, Bob wrote:
    >> Hello,
    >>
    >> Have a forced hot water system for home heating that uses the typical 2
    >> wire Honeywell thermostat to control a Honeywell RA832A switching relay.
    >>
    >> The switching relay closes the circuit to the thermopile, as well as
    >> closing the 110 V circuit for the water circulator.
    >>
    >> There is also a transformer that provides 24 V for the thermostat and
    >> the relay.
    >>
    >> Question:
    >>
    >> Guess I'm dating myself somewhat here, but there is a symbol that I am
    >> not familiar with in the instruction sheet for it.
    >>
    >> The secondary of the transformer (going to the thermostat) shows what is
    >> similar tho the common resistor symbol of
    >> 3 points up, and 3 points down from the baseline.
    >>
    >> But this symbol has only 1 point up, 1 point down, and then the return
    >> to the baseline.
    >>
    >> I don't think it is meant to be a resistor.
    >>
    >> It is drawn close to the relay contact symbols.
    >>
    >> Could it be meant to be the coil for the relay, perhaps ?
    >>
    >> Or,... ?
    >>
    >> Thanks,
    >> Bob
    >>

    > Hello, and just a thought: After reading and understanding (I think)
    > schematics of radios, TVs, and audio components for years, I'm still
    > often confused by the schematic symbols for wiring and electric
    > components as used by the automotive industry. And then there's those
    > "single-point" diagrams used by electric power utilities to denote
    > 3-phase AC power generation and distribution. Sincerely,
    >

    The utility single line diagrams are simple-the needed information is
    there. What isn't simple is some of the automotive wiring (including
    the logic in some cases such as in an old VW van).This is a world of its
    own.

    --
    Don Kelly
    remove the cross to reply
     
    Don Kelly, Sep 14, 2013
    #4
  5. Bob

    Shaun Guest

    "Bob" wrote in message news:l0l7mk$m8l$...

    Hello,

    Have a forced hot water system for home heating that uses the typical 2
    wire Honeywell thermostat to control a Honeywell RA832A switching relay.

    The switching relay closes the circuit to the thermopile, as well as
    closing the 110 V circuit for the water circulator.

    There is also a transformer that provides 24 V for the thermostat and
    the relay.

    Question:

    Guess I'm dating myself somewhat here, but there is a symbol that I am
    not familiar with in the instruction sheet for it.

    The secondary of the transformer (going to the thermostat) shows what is
    similar tho the common resistor symbol of
    3 points up, and 3 points down from the baseline.

    But this symbol has only 1 point up, 1 point down, and then the return
    to the baseline.

    I don't think it is meant to be a resistor.

    It is drawn close to the relay contact symbols.

    Could it be meant to be the coil for the relay, perhaps ?

    Or,... ?

    Thanks,
    Bob



    I is probably a symbol from those damn aliens. They were getting into
    everything back then!
     
    Shaun, Sep 15, 2013
    #5
  6. Bob

    Don Kelly Guest

    Re: Schematic Symbol I Am Not Familiar With: Anyone Know Perhaps?

    On 15/09/2013 4:50 PM, Pilgrim wrote:
    > In article <PucZt.28787$>,
    > "Shaun" <> wrote:
    >
    >> "Bob" wrote in message news:l0l7mk$m8l$...
    >>
    >> Hello,
    >>
    >> Have a forced hot water system for home heating that uses the typical 2
    >> wire Honeywell thermostat to control a Honeywell RA832A switching relay.
    >>
    >> The switching relay closes the circuit to the thermopile, as well as
    >> closing the 110 V circuit for the water circulator.
    >>
    >> There is also a transformer that provides 24 V for the thermostat and
    >> the relay.
    >>
    >> Question:
    >>
    >> Guess I'm dating myself somewhat here, but there is a symbol that I am
    >> not familiar with in the instruction sheet for it.
    >>
    >> The secondary of the transformer (going to the thermostat) shows what is
    >> similar tho the common resistor symbol of
    >> 3 points up, and 3 points down from the baseline.
    >>
    >> But this symbol has only 1 point up, 1 point down, and then the return
    >> to the baseline.
    >>
    >> I don't think it is meant to be a resistor.
    >>
    >> It is drawn close to the relay contact symbols.
    >>
    >> Could it be meant to be the coil for the relay, perhaps ?
    >>
    >> Or,... ?
    >>
    >> Thanks,
    >> Bob
    >>
    >>
    >>
    >> I is probably a symbol from those damn aliens. They were getting into
    >> everything back then!

    >
    > In many drawings it indicates an unspecified distance.
    > CP
    >

    In other words- we have need of some Rosetta Stone where, depending on
    the language, there is a valid interpretation.
    The problem is in the recognition of the originating language and the
    receiving language. If one or the other is unknown we have Babel.
    Sounds academic/political/advertising-- etc.

    --
    Don Kelly
    remove the cross to reply
     
    Don Kelly, Sep 16, 2013
    #6
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