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care to explain?

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jim_14
jim_14 Member Posts: 271
in THE MAIN WALL
I know this controls the t-stat for a circulator pump for hot water off this boiler. Can anyone give me a good explaination of this piece and what does what? Its the honeywell box opened in the second picture.Im just curious ,thats all!!

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  • Alan R. Mercurio
    Alan R. Mercurio Member Posts: 588
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    Hi Jim,The RA89, RA832, R845 Hydronic Switching Relays
    Provide intermediate switching of a line voltage device from a low voltage controller.


    1 Integral transformer provides low volt-age power for control circuit.

    ELECTRICAL RATINGS: Maximum Input: 5.0W.
    Maximum, Ambient: 115 F (46 C) for 60 Hz, 105 F (41 C)for 50 Hz.

    DIMENSIONS, APPROXIMATE: 5 1 /4 in. (133 mm) high, 4 1 /4 in.(108 mm) wide, 2 5 /16 in. (59 mm) deep.

    Your friend in the industry,

    Alan R. Mercurio

    www.oiltechtalk.com
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