Recent content by LapPool

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    V-Green 270 and RS-485 Control

    I couldn't get any response (no RX activity) from the bus until I switched DIP 1-4 to Off. My guess is that the default ON ON OFF OFF recommended by the V-Link user manual speaks a non-Modbus protocol.
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    V-Green 270 and RS-485 Control

    Yes, that's it exactly. I have an e-mail in to suppport to see if I can get an explanation for the DIP switches.
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    V-Green 270 and RS-485 Control

    The switches are setup as in the photo: 1 and 2 On, 3 and 4 Off. They are hard to see because the light is flat. I have read that thread, but my impression was that the OP was unsuccessful.
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    V-Green 270 and RS-485 Control

    The original digital controller is dust-sealed only, so it fills with water when it rains. The pumps are now discountinued and the replacement controllers appear to be no longer available, despite the motor being less than 2 years old. I've contacted the original dealer and the manufacturer. The...
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    V-Green 270 and RS-485 Control

    I've read three threads on the forums related to RS-485/MODBUS control of the V-Green pump motors. Based on those, I was encouraged to give it a try. I bought an inexpenive 422/485 USB adapter for testing, and downloaded the terminal program with macro support that @MSchutzer used. Initially, I...
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    PXL_20230402_173953175c.jpg

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    Heat Pump vs. Natural gas heater Cost Efficiency

    Another thought is that If you ever get solar panels, your perspective on gas might change. I considered the all-electric aspect of my house to be a negative, especially after getting a $7,500 quote for the gas company to just spend 20 minutes making the connection. Once I self-installed 15 kw...
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    Large Lap Pool

    The pool has a deck level water line and no skimmers. Water flows through overflow gutters by gravity back to two surge tanks joined by a primary pipe and a secondary balance tube. This is essentially a commercial lap pool design, but utilizing residential pool parts. This is just an intro. I...
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    Large Lap Pool

    I installed a large lap pool in 2007. It's still going strong but there are some issues that have always plagued it that I'm interested in fixing. Currently, I'd like to automate the pool pump run speed and time using my sprinkler controller, a microcontroller, and a ttl to rs-485 interface.