jandy vs. pentair pool equipment and remote computer
jamie2247
15 years ago
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trhought
15 years agoRelated Discussions
Pool equipment question - urgent
Comments (23)Peter- Thanks for the link to the Intelliflo technical discussion. Obviously this was an Intelliflo only discussion and only addressed low speed efficiency. Variable speed pumps with BPM motors will always use less power than a PSC motor at low speed. There is no argument here. However, variable speed at higher speeds suffers from large power consumption due to two primary power robbers 1) high current inversion of AC to DC power in the VFD, which is very inefficient and produces a lot of waste heat as a result 2) Compromised impeller design because the impeller can not operate at peak efficiency for a large gpm range so the engineers have to make a choice where they want to optimize the impeller and at the same time a choice at where the impeller will not be very efficient. In the case of Intelliflo, from their published power, TDH and gpm curves, they have optimized for low speed operation and rightly so, but this choice also causes the higher speed efficiency to be miserable. Also of note, while I agree with your warning of using FLA to estimate power consumption, I would also add that the Intelliflo curve is true power consumption in watts and not FLA. Using FLA to calculate 2 speed pump power is worst case and, to your point, will only be better in the real world which makes the 2 speed even more favorable over variable speed. Just wanted to offer a balanced view here. Variable speed has its own merits, mainly low speed efficiency and ability to tune flow to plumbing resistance for optimum performance. But, to suggest using a variable speed pump for multi-tasking, which requires higher speeds, is not doing the energy conscious homeowner any good. In the case of pools with multiple water features or in-floor cleaners which require higher flows, multiple 1 speed or 2 speed pumps that are tuned for the higher flows will always save energy over a variable speed that is trying to inefficiently cover a large operating range. jj- In your case with a floor cleaning system...the floor cleaner will have to run for about 2 hours a day to get full rotation of the heads and full cleaning. For other hours of the day, the pump can ran at low speed allowing the pump to operate easier against lower resistance providing turnover and filtering for your pool. A variable speed or a 2 speed will both provide energy efficient operation for your cleaning and filtering needs. Only you can make the decision if you want to spend the extra money for the variable speed. To help you justify the extra cost for variable speed over 2 speed, use 200 watts per hour savings over 2 speed at low speed and 1,000 watts per hour cost over 2 speed at high speed. Knowing how long you will run the pump at high and low speed will allow you to calculate how much money is saved per day with variable speed and 2 speed, helping to make your decision. Hope this helps!...See MoreIntegrated system: Pentair vs. Jandy
Comments (2)I will give you my take. I also plan on integrating in controls for my lights, music and possibly a light show with light o rama controlling my backyard flowerbed lights, yes I am one of those over the top synchronized music and lights Christmas display guys, so I totally follow your line of thinking, it makes my OCD's kick in just thinking about how much I have been contemplating about this stuff! I finally chose almost all Jandy for my pool equipment (with the exception of my beast raypak heater and color logic lights). I am running the largest aqualink RS as it seemed to have all the expandability and functions I wanted. I am also running the aquapure 1400 swg. The only part of my pool that is different is that I chose the color logic 4.0 LED lights for pool and spa. The great thing is the new aqualink systems support Jandy lights, SAM, and best of all for me, color logic 3.0 and higher. It actually has the menu choices in the PDA (pool digital assistant I think, I call it the big blue remote.) controller that correspond to the correct light shows built in to the color logic lights, so it can control them as intended by color logic, just pick the color or show and hit go! With some other controllers the only way to cycle through the shows is to power cycle the light over and over manually. The aqualink PDA also has support for multispeed pumps, you can even set a percentage of power to be used in the PDA itself. The aqualink also has extra aux slots that can be user assigned for the extra things we want to do. I really like that every facet of my pool can be controlled/monitored from the PDA or the control panel of the aqualink. Sorry if long winded, I only really looked at the Jandy equipment as I have a friend in the business who really convinced me the stuff is really good, especially since they have upgraded the speed of the PDA....See Moreonline pool equipment
Comments (3)Our policy is to not install anything a homeowner buys on the internet. One reason. If it has a problem, what do you do? Are you going to cut it out and pay to ship it back or is the installer? One lady had a bad Quad DE that she got a great deal on and it needed returned. It was a shipping damage thing so warranty was not responsible. Had I put it in from stock in the local distributor, I have the advantage of not accepting it until checked by me personally. You don't have that online and you have no idea of where this stuff comes from or how it was handled. From my local wholesale distributor, I can see the box before I buy it and if I suspect something, I can check it out. Your installer will not put something in twice for the same cost and suddenly your good deal is not so good. Support your local companies, your community needs it. Most "internet" suppliers have grinded down a supplier and make about $20 on a piece of equipment over wholesale and never see the stuff. They take your order and have it shipped to you from a location who knows where. Not grinding my own ax here, but my opinion is based on fact of what I see daily....See MoreNeed adivse on Pentair Equipment and Setup
Comments (4)Repair_Guy, In response to 2. THE PUMP IS FOR AN ET. I am not up with all the appreviations, do you mean it is meant for the Intellitouch IT? You also said it was bad choice for an Easytouch is that because you can only have 4 speeds programmed ergo 4x160? If so, then I don't see why that is a problem in my situation since I only need 3 (skim, vacuum, sheers) - or am I missing something? 3. I ordered a Polaris ATV and the PB gave me Hayward Ultra. I have a call into my PB to give me the Polaris ATV as I feel it is better than the Hayward Ultra. I am hoping to demand the Polaris ATV but if the PB pushes back I won't fight him if they are both about the same. Some other additional information - the easytouch is hooked up via the RS-485 input to the easy touch but the PB installer can't get it to work and is waiting on Pentair to help out. I bet he didn't set the address or setup the circuit names yet. It looks like the installer was going to just plug it in and it auto recognize it (this is 4th-ish VF they have installed and I bet the others were attached to Intellitouch panels). And BTW thanks for all the help you give on these forums (I know you hear this alot) but it takes a lot of patience and a kind soul to spend the time you do answering all these questions. I don't have the pool & spa knowledge you have but if you ever have any Q's regarding computers/software/hardware I will help you out if I can (I work for one of the largest software companies in the world). Thanks again ......See Moreel_duderino
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