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  1. Replies
    15
    Views
    4,420

    Runs mechanical cooling upon start up with no...

    Runs mechanical cooling upon start up with no attempt to operate economizer
  2. Replies
    15
    Views
    4,420

    Replaced both sas & oas. Still running mechanical...

    Replaced both sas & oas. Still running mechanical cooling below 30 degrees
  3. Replies
    15
    Views
    4,420

    Was not waiting three minutes for test mode, that...

    Was not waiting three minutes for test mode, that explains it operating intermittently.
  4. Replies
    15
    Views
    4,420

    Trane economizer troubleshooting

    Trane YCD060 operating mechanical cooling @ 25 degrees. Run test mode economizer operated once out of several times
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