Max Efficiency SCHEDULE For Variable Speed Pool Pump
Вставка
- Опубліковано 7 бер 2024
- From www.swimmingpoolsteve.com/pag... this video explores a maximum efficiency 24 hour pool pump schedule for a variable speed pool pump - Specifically the 1.85hp Hayward Tristar 900 / SP3202VSP. By setting the program to utilize the maximum laminar flow from the pipe size you are using as the top speed you are sure to minimize the losses to friction and water turbulence in your plumbing. This is where most pool filtration schedules lose the majority of the energy efficiency. You generally do not need 100 or 120 GPM or more for peripheral items like heaters or salt systems, nor do skimmers and returns require this amount of flow to adequately skim the surface debris and return clean, filtered water back to your pool. In 1.5' plumbing the limit for laminar flow is 38 gpm, 2" plumbing is 65 gpm and 2.5" plumbing is 90 gpm. The size of the trunk line in your plumbing system will determine which of these you use as your "maximum" flow rate. The two slower speeds are chosen based on the peripheral items that your pool has. This schedule would likely work well for pools with heaters and especially electric heat pumps since 40 GPM should be enough for these to operate for most pools, and the long hours above 40 GPM in this schedule provide adequate time for the heat pump to operate. Finally, the lowest speeds of just over 20 GPM is enough for most salt systems to operate which means this pool can run the salt cell as much or as little as needed over the 24 hour period.
Maximum efficiency with minimum losses to friction and turbulence. This is just one example of an ultra-efficient pool filtration schedule. Ever pool will have unique variables to consider.
#energyefficiency #variablespeed #swimmingpoolsteve - Навчання та стиль
I have used this program for a couple years and our electric bill dropped like a rock from the one the pool company changed it too. And our chems dropped 50% and more. Our pool is chean, bright and nice!
Thanks for always being so thorough and informative. I have this exact pump and essentially the same setup, so I’ll be setting up a 24 hr schedule as soon as I’m able. I do need to learn how to make a speed preset, since the pool company only gave me two options of 50% and 75%, but hopefully that’s as simple as “RTFM”.
For my pool, the pump is below the mean water lever. 800 RPM was the best at around 95-100 watts... Under that it pulled more watts..
As a new pool owner I find your content is wonderful. I was wondering if you could recommend a good app to track your pool chems and dose levels. As always thanks for what you do.
My pool pump died today and doing my research I landed here... My electric bill is $850-$900 on average every month. Hoping moving to one of these pumps can help lower that!
I can’t drop below 1200 rpm’s or my ultraviolet and flow meters trigger an alarm on the low end. The variable does save $. We didn’t notice a huge increase with a new pool. Even started having the pump idle because the pool was clean.
Hi Steve. This is the best pool channel I follow and the best on YT, in my opinion. I do have a question: My almost 25 year old in ground vinyl pool (19x35 approx. 25k-30k gallons) has 1.5" plumbing. I currently have a Hayward 2603VS pump 230V. Last season, I installed an OmniLogic to replace my ProLogic. As good as this pump is, I would like to replace with another Hayward that I can control with the OmniLogic. What would be your recommended replacement and what RPM/Hrs per day should I run it?
You definitely would want to look at the super pump VS 700 which is the same pump ypu have now, essentially. If that current pump can not be compatible that is. I though the 2603 was compatible with Omni directly, or certainly via relay control at minimum. I am going to comment again in a second here with a link to a sell sheet for the Hayward super pump VS which shows the 2603vsp compatible with omni. Perhaps speaking with Hayward tech just to verify your options would be a good idea.
Here is a link to a sell sheet that shows the SP2603VSP as being compatible with OMNI lesl.a.bigcontent.io/v1/static/Hayward-Super-Pump-VS-Brochure
Would that schedule and RPM's be appropriate to use with my solar heating system? Thanks! Great channel.
Hello Steve , it's because of your videos like this one . I decided to go with a Hayward VSP pump . I had it installed yesterday so I'll see how it goes . The installer used a 16 hour schedule , do you recommend this one ? On the last phase it's only 1,000 rpm and the skimmer isn't running . Please let me know your thoughts .W3SP2303VSP is the pump they uesd .
I am researching a replacement to this very pump based on your earlier UA-cam posts, thank you.
Is a 24hr runtime preferred, is it to maximize the longevity of the pump?
Using a single speed now and the idea of running the pump around the clock is foreign.
Every hour the pump is off is another hour of missed opportunity for savings. It is a continuous duty motor designed for constant operation. The lower speed operation (never needing max speed) means vastly less heat generated due to friction of moving parts. Heat kills electric motors so a lifetime of cooler, lower speed operation could potentially have a huge impact on longevity. Finally, it is the priming cycle which causes the most mechanical wear on a self priming pump and motor, so all in all its a slam dunk from every angle. Here is more info in an article I wrote about this subject www.swimmingpoolsteve.com/pages/shut-off.html
Great videos Steve! Out of curiosity, is there a benefit to adjusting the rate during the day? Otherwise why not say run 24hrs at 1500 rpm or even 15 hours at 2200 rpm?
The peripheral equipment needs certain flow rates and the skimmers and returns need certain flow rates to clear floating debris. How much depends on a pool by pool basis
I didn't know to run the pump for 24 hrs. Ive always run mine 2750 for 8 hrs then 1750 for 4 hrs. What are the advantages of running 24 hrs? Thx
So I guess you could cut these numbers down by a lot if you just have a 12k gallon pool.
Last year I replaced an old DE filter with a cartage filter, and the filter pressure dropped from 35 to 18. I wonder how much energy savings come from this filter replacement?
I read an energy report once that claimed $100 to $300 per psi savings per year. I wish I had more details to share but ypu will have to settle for this anecdotal evidence.
Would these settings work for a 15000 gallon pool with 1.5 in plumping and a the Hayward 1.65hp VS pump
Every pool is unique. Ypu have smaller pipes, a different pump...I would suggest you look at this resource I am building which has multiple different examples including some using the pump you actually have, not the 1.85hp tristar 900 shown in this video: www.swimmingpoolsteve.com/pages/vs-schedules.html
Maybe I missed it, but what size pool (gal) are you basing this off of? Thanks!
Approx 20,000 gallons
@Swimmingpoolsteve thanks! I'll take a look and adjust our settings. I'm 30,000 however we have the same model pump and our pool company has always kept it at Max RPMs 12 hrs and 2500 over night. I'll be curious how much a can get that lower. Our electricity usage is insane in Summer.
@waldyworld926 this is not a good schedule at all for energy efficiency. Even taking the max 3450 rpm to 3200 and the 2500 rpm to 2000 would make probably 30 to 50% reduction in power consumption.
@@Swimmingpoolsteve I agree. I never understood why we didn't take advantage of the variable rates. We moved in 2 years ago and just essentially left it alone. Glad I saw your channel
Just a note: 67 gpm isn't even close laminar flow in a 2 inch pipe. For 67 gpm to be laminar you'd need a 90 inch pipe.
The limitation for laminar flow in 2" pvc pipe is 6 feet per second of water velocity which is approximately 65 gpm.
@@Swimmingpoolsteve It literally is not though. You can compute this. The Reynolds number for water flowing at 67 gallons per minute through a 2-inch diameter pipe is 105,946. This indicates that the flow is turbulent, as the Reynolds number is significantly higher than the threshold for turbulent flow, which is generally considered to be 4000.
@@David.Murdoch thank you for your feedback. I should be using different terminology, max flow rate before appreciable losses to friction and turbulence.
You got your units for energy wrong. It's Wh and kWh, not W or kW.
Why change the speed if you only need one function? Why not just buy a single speed pump that produces exactly what you would need over a 24 hour period.? For example why not run a pump that generates 45 or 50 gallons per minute for 24 hours straight?
It used to be that is how you got an efficient pump. A reasonable 1/2 hp or 3/4 hp at most. But that is still a lot less efficient than variable speed motors. A larger motor running at half speed will use less power, by a lot, than a small motor running at full speed. Both delivering 50 gpm. This is due to the pump affinity laws and why the department of energy now requires variable speed pumps for all filtration pumps on all pools
@@Swimmingpoolsteve thanks. But then the question is if you only need one speed, why not just buy a single speed pump that is designed to runs at half speed? I just don’t see the reason to be switching the speeds during the day.
Or if my question isn’t obvious, buy a two speed pump and run it on the low speed?
@dgv1170 you can still buy a dual speed pump I am pretty sure. If your system had no requirements for speeds other than the 2 it gives you then that could work also. There are some more budget pumps that meet the DOE energy efficiency requirements.
Thanks. This might be a great topic for a video for you. A lot of pool owners, particularly salt systems, which do not need a greater flow than the filter, simply have no need for more than one speed. But it’s impossible to get any accurate information because everyone says that a variable speed saves money, which makes sense if you need more than one speed, but it does not make sense if you only need one speed, now if your argument is that a one speed pump is always running at full speed and therefore is in efficient, that seems to be a design problem, but not a need for more than one speed. And as I mentioned, if it truly is a design problem that No manufacture has ever addressed, get a two speed and run it on the lowest speed. In any event since 99% of all statements are that variable speed saves you thousands of dollars, it just seems like it needs to address the situation where it doesn’t seem to save any money (provided that you buy a small enough pump capable of doing the one job you need (just filtering). Anyway, thank you very much for all of your responses.