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  1. Replies
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    Approx. 35.25 fthd across the pump. Taking into...

    Approx. 35.25 fthd across the pump. Taking into consideration, the pump's fairly flat curve, and if the pump is running at 1,750rpms you are probably pretty close or slightly over 210gpm. With fairly...
  2. Thread: HydroLock

    by retube
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    4
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    289

    Both circuits equalized at the same rate.

    Both circuits equalized at the same rate.
  3. Thread: HydroLock

    by retube
    Replies
    4
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    289

    I started up a fresh 35ton RTU today and the unit...

    I started up a fresh 35ton RTU today and the unit did not have enough condenser to clear the saturated vapor / suction gas that was in the suction line without limiting out on head pressure. I closed...
  4. Thread: HydroLock

    by retube
    Replies
    4
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    289

    HydroLock

    Have you Hydro-Locked any MicroChannels yet? It's possible even on a perfectly charged unit! Receivers will be the new suction accumulators.
  5. There is a wooden guard-rail, it's on the lower...

    There is a wooden guard-rail, it's on the lower deck.:grin2: Would you believe that whoever installed it never plans on servicing it?!
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    I do have ABB Drives. The burnt mark is near the...

    I do have ABB Drives. The burnt mark is near the remote occupancy and enthalpy terminals. I also have lost the VFD Signal only in the past. Interesting.
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    Carrier RCB Boards

    Has anyone ever had a failure of a RCB Board on multiple different Z Series Units? The reoccurring failure point I have witnessed is near the J4 connector where the discrete inputs are landed. The...
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    Trane IntelliPak Microchannel Leakers

    Has anyone had any issues with the New Large IntelliPaks Condenser Coils? Just asking.
  9. Thread: PH Meter

    by retube
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    561

    The Best

    Myron L
  10. Thread: lennox

    by retube
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    496

    It is a pictorial schematic. If you learn how to...

    It is a pictorial schematic. If you learn how to read them there is nothing simpler.
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    Pronunciation

    A few years back, in the mid 90's, I had a service manager ask me if I had any applications where one of these new condensing Boilers called the Lennox Complete Heap would fit the bill!!!
  12. Thread: Comfortview 3.0

    by retube
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    2,372

    Ask for 3.2

    Ask for 3.2
  13. Replies
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    3,278

    And Before The Pulse

    The HydroTherm Pulse Boiler. If it wasn't for the leaky heat-exchangers the Pulses were in a league of their own.
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    Not all compressors are the same.

    Ultimately the saving is derived from the use of the VFD's to more closely match the load. Isn't that the savings. The first biggest VFD compressor savings is on the centrifugal, second is found on...
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    The next best thing?

    The next best thing is when it is a really bad design!
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    Quantity

    It is not just isolated to Trane.:censored:
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    Lennox

    Would you happen to have the Lennox USB adapter #? I can't find it. Thanks in advance.
  18. Slugs of liquid and oil are on the horizon

    Do yourself a favor and install a small accumulator and your compressor will be forever great-full.
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    Lennox PC to L Connection

    Is the Lennox PC to L Converter just a standard RS-232 to RS-485 converter?
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    I see some compressor change-outs on the horizon....

    I see some compressor change-outs on the horizon. 200'?
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    More times than not you will find errors in the...

    More times than not you will find errors in the config tables of the controller that lock-up.
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    The scrolls weak link rest assured bearing...

    The scrolls weak link rest assured bearing trouble you have.
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    On a open or closed loop system the sensor is...

    On a open or closed loop system the sensor is usual located 2/3 way out on the system piping to get a actual system Delta P. Here it sound like they actual want to control to Pump Delta P. I wonder...
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    Do you also notice that it is always the same few...

    Do you also notice that it is always the same few controllers?
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    Just another over-thought Goobermint idea. If the...

    Just another over-thought Goobermint idea. If the truth were known, someone put on a multimillion dollar PowerPoint presentation and the consensus was, probably the gauges alone would pretty much fix...
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