I'm trying to monitor my waterfurnace series 7. I know about the Aurora solution, but not released yet. I need to measure power consumption especially on the pump. I'm looking at Brultech research and Web Energy Logger but not finding anything else. im planning on monitoring the EWT, RWT, temps, power consumed by Geo and pumps. How do you monitor gpm?
Yes, just a delta P translate to flow. Or google vortex flow sensor. I think Grundfos makes one for the solar market that measures flow and temperature. You'll probably not want to spend the money on them. And/or they probably only come in up to 1".
I use a pressure gauge and a Pete's Port adapter. Lube it first so you do not blow out or in the gasket. I use the same gauge on both sides, as I am looking for a delta not static PSIG.
This is a popular monitoring system. http://www.welserver.com/intro.htm Here is one Docjenser installed. http://welserver.com/WEL0713/ ChrisJ
I forgot to say, I also have a WF 7 series. I got my installer to sell me an AID tool that I can also use to monitor the system using the readings from the Aurora board. I have also been patiently waiting for the new Symphony monitoring system from WF that they have been promising for the past couple years........... Still waiting!
Keep in mind that the variable speed changes flow rates continuously according to the compressor speed, Symphony launch is planned within the next couple months. Here are a couple more 7 series on the welserver. They are not fully complete yet, thus they are not on our website. I usually don't chase the COP, I am more interested in total energy consumption, loop temps etc. With water to air units, the COP is pretty much a given if you feed it with enough water at the right temperature, and enough air at the right temperature, unless there is something wrong with the unit. http://welserver.com/WEL0762/ http://welserver.com/WEL0834/ http://welserver.com/WEL0835/
Very interesting thank you. On the open loop you have listed above, couple of questions, what is the pump you are using in the well? how are you measuring the power consumption? I'm looking at measures both power and tempretures http://www.mypowerpanel.com/, looking to compare pump consumption against WF7 demand. Any experiences with this data?
1.5 hp goulds on a 3 phase controller in order to have variable speed . Power consumption per amp meter, since voltage is relatively stable and accurate. Since there are 3 HPs on a single well pump, it is tough to follow the individual pump consumption on put it in relation to the individual HP stage and status. One might be on, one might be off, or vice versa, but total pumping requirements remain the same. One of the 3 HPs I do not have access to with the monitoring, since it is in the carriage house. From my perspective, again, the COP etc is not important. I worry if the Hps operate under the right conditions. I also measure energy consumption, but to monitor flow for example is a high hanging fruit.
Do you happen to know the AMPs that its running? I have a Goulds pump 18g07 (3/4 HP) and fixed speed. I'm planning to switch to a VFD but not sure about 3 phase or 1 phase. a 3 phase will require changing the pump and i can even go to a smaller pump (1/2). However a single phase I can stick with the same pump. Thoughts?
http://welserver.com/WEL0762/ First graph, it is running at 1.5 KW for the last 24 hours, very cold here right now, around -6F, windchill around -35F right now. With 7 series, smallest pump and variable speed is a must. The unit will run 6000 hours per year!
With the Brultech since it has pulse inputs you should be able to get a 1" pulse meter and monitor flow for a variable speed well pump. They have a 3/4" also that is cheaper but might be restrictive depending on how big your unit is. You might have to investigate how the brultech handles the pulse. Hopefully it is interrupt driven and timed per pulse as those meters are 1 pulse per gallon. http://shop.watermeters.com/DLJ100C-1-with-Pulse-DLJ100C.htm http://shop.watermeters.com/DLJSJ75C-Compact-3-4-with-Pulse-DLJSJ75C.htm I am using 1/2" with a cheap Raspberry Pi to monitor flow. http://dweet.io/follow/yumyum I am just a simple bladder 30/50psi on/off open loop now so you can see my flow vary with the pressure in tank. Plan on changing mine around to minimize pumping power in the near future when it warms and the Geo isn't running as much. My pump draws about 1000 watts and is on 31% of the time. Estimating my pump power is around 350 watts continuous right now. I think I can get it lower.
