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Pneumatics question

Plumdog_2
Plumdog_2 Member Posts: 873
in A-C, Heat Pumps & Refrigeration
I'm new to pneumatics and want to know what Ox designates. (My guess is outside air sensor). This stuff is fifty years old or more and still works (with a little attention).

Comments

  • BillW
    BillW Member Posts: 198
    Need a bit more info...

    "X" sometimes refers to a restrictor, outside air sensors are usually LP914's, and are designated by their insertion type; well, duct or through the wall mounting.  It could also be a misprint of "Dx" which could mean direct expansion cooling, or a Direct Action (air-to-close) the valve or damper.
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