York RTU heating maintenance/service

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  • Опубліковано 22 гру 2024

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  • @legstretcher
    @legstretcher Рік тому

    Hey bro just stumbled upon your channel. Just wondering how do you determine how much to derate? I’ve always just set gas valves at 3.5” wc and I also live in Calgary. You’re the only person I’ve seen say to set it at 3”

    • @Calgarysheatpumpguy
      @Calgarysheatpumpguy  Рік тому +1

      Most unit will actually have manifold pressure write on the nameplate. That nameplate normally includes derated manifold pressure too.
      A lot of the time you’ll see
      0-2000ft 3.5”
      2000-4500ft 3”
      above 4500ft derate 4% per every 1000ft above 4500ft.