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Thread: CVA-24T Actuator rotation direction

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    JoyfulNoise's Avatar
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    CVA-24T Actuator rotation direction

    I wanted to add another CVA-24T actuator to a 3-way valve in this picture -



    The problem is, as some of you with an astute eye will get right away, the plumber butted the two diverter valves right up to one another and now there is no room to put the actuator in the typical position where the back of the actuator would be aligned with the common flow pipe (the pipe where water comes from). This leaves me with two option -

    1. Mount the new actuator turned 90 degrees so that it is aligned along the axis of the two pipes that receive the flow of water and adjust the internal cams of the actuator so that the diverter plate can not travel the full 180deg and block the flow of water (aka, dead-head the pump). Setup right, this means that the actuator will only travel 90degs and either all the water will flow to the pool returns OR it will split evenly to each pipe BUT NEVER able to fully close off the pool returns. The only downside to this approach is if the internal limit switch failed for some reason, there is a remote possibility of dead-heading the pump.

    OR

    2. Figure out how to reconfigure the actuator so that it turns the opposite way it is designed to and then mount it 180 deg so that the back of the actuator is sticking out away from the flow of incoming water. I just don't know if this it at all possible?

    The shaft of the actuator is designed with a special array of notches so that it can only fit on the valve body in one specific orientation to get the full range of 180 deg. The problem with just mounting it 180 degrees is that it will cause the diverter door in the valve to pass in front of the water flow effectively dead-heading the pump as it travels. This, in my opinion would not be a good thing to do.

    This is a top-down shot of the same pipes showing their functions -



    The purpose here is to actuate my spillway using my automation panel. The pipe labelled "SPA Return (1)" is a single return into the spa that causes the spillway to flow over.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Mod Squad pooldv's Avatar
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    Re: CVA-24T Actuator rotation direction

    I would go with option 2. You can reset the cams to make it start and stop anywhere you want it to and flip the switch to make it turn either way.
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    Re: CVA-24T Actuator rotation direction

    Quote Originally Posted by pooldv View Post
    I would go with option 2. You can reset the cams to make it start and stop anywhere you want it to and flip the switch to make it turn either way.
    Hmmmm....I'm going to have to look that over again because it didn't seem obvious to me how to do that. I know the internal cams and stops could be adjusted but I think I need to rotate the shaft 180deg from the current factory default position and then reset the cams to see if I can get it to line up with the diverter plate properly and rotate the correct way. I want to avoid dead-heading my pump.

    If only the PB's plumbing sub had not butted those three-way valves so close together and had given me two stinkin inches of PVC between them, this would have been a 10min install job
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: CVA-24T Actuator rotation direction

    If you do not have physical stops on your valve then if the dip switch doesn't work the actuator will just turn in 360 circles. Mine has done that. You might just need to hook the actually off the power and get it to rotate about 180 so that then you can hook it to your valve and then adjust the cams.
    Jason, TFP Moderator
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    Mod Squad pooldv's Avatar
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    Re: CVA-24T Actuator rotation direction

    Yes, remove the stops and rotate the stop cam way around, let it turn and then rotate the other cam around to where you need it.
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    Re: CVA-24T Actuator rotation direction

    Ok. I took it all apart on my work bench and looked it over. I see how I can mount it on the valve and remive all the cam stops. Then I should be able to use the 3-pole switch to get the actuator shaft positioned so that it lines up with the valve shaft.

    Oi. I was in a rush this morning trying to do it and then ran out of time. I guess it'll have to wait until Saturday...ill post back if run into anymore questions.

    Thanks gents!!
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: CVA-24T Actuator rotation direction

    The diverter plate can be unscrewed and rotated so the inlet portion and CVA mounting holes face any direction you wish. I would set the actuator body parallel with the either the pool or spa return so its not hanging off the back. The actuators can be reconfigured to whatever degree rotation you'd like. The 90, and 180 degree actuator are no different (other than part numbers), they just have the cams positioned differently. You can set yours to rotate 270 degrees if needed.

    .....or you can follow this little jewel of advice HERE...not that I am biased
    -Brian-
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    Davis Custom Construction - Home Page

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    Re: CVA-24T Actuator rotation direction

    Haha Brian, I knew you'd call me out!! I do appreciate your wisdom on that and it was going to be my "Plan B" I just didn't want to mess with my air intake on the spa.

    Of course now that I am shamed I'll have to atone for it by making my next pool upgrade a ScreenLogic controller...I'm still programming my EasyTouch using the RF remote
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: CVA-24T Actuator rotation direction

    A punishable offense
    -Brian-
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    Re: CVA-24T Actuator rotation direction

    I bet you'd be surprised at how high of a flow you can have to the spa without any jet action. I think mine is good up to about 1800 rpm.
    -Brian-
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    Re: CVA-24T Actuator rotation direction

    Quote Originally Posted by bdavis466 View Post
    I bet you'd be surpassed at how high of a flow you can have to the spa without any jet action
    Ya know, it might be a good idea for me to program both in as feature circuits. I don't actually use my spa nearly as much as I thought I would and it's probably a good thing to have that jetted spillway function setup just so I can run water through those pipes on a regular basis. Maybe I'll set it up to run every other day.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: CVA-24T Actuator rotation direction

    UPDATE - Thanks guys!! Actuator is installed and functioning correctly. I now have a Feature Circuit for the spillway that ramps up the pump speed a bit and turns the actuator so that water is mostly (80-20 split) sent to the spa's single return. I have it scheduled to run once per day right now for an hour so no more continuos spa spillover all day long driving up my pH.

    So I had to clean out some old scheduling because I reached the limit for schedules (I was not aware it was so low). Does ScreenLogic allow you to have more schedules than the base number allowed by the EasyTouch?
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: CVA-24T Actuator rotation direction

    I have thought about doing something similar ( very lose term). To add an actuator to turn my suction lines to 100% Vac when the pump is on low and 70/30 between the vac and skimmer when on high. Although in the summer, when my solar is not running much at all, that might not give me enough skimming time
    Jason, TFP Moderator
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    Re: CVA-24T Actuator rotation direction

    Quote Originally Posted by jblizzle View Post
    I have thought about doing something similar ( very lose term). To add an actuator to turn my suction lines to 100% Vac when the pump is on low and 70/30 between the vac and skimmer when on high. Although in the summer, when my solar is not running much at all, that might not give me enough skimming time
    I have thought about that too as my suction line is split with a three-way valve between the suction port and the skimmer (main drains are tied to skimmer ). However, the long range plan is for me to get rid of the suction cleaner and go with a robot. I'd really love to not have the suction cleaner anymore as it doesn't do a very good job and I manually vacuum once a week anyway. If I took off the constant suction side cleaner, I could run my pump at lower RPM's during the normal daytime filter/SWG operation. Anything that cuts down on RPMs is good in my opinion.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: CVA-24T Actuator rotation direction

    My understanding is that ScreenLogic just back doors the programming of the panel itself. How many schedules did you have? I have 7 and I'd imagine I could have several more.
    -Brian-
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    Re: CVA-24T Actuator rotation direction

    Quote Originally Posted by JoyfulNoise View Post
    I have thought about that too as my suction line is split with a three-way valve between the suction port and the skimmer (main drains are tied to skimmer ). However, the long range plan is for me to get rid of the suction cleaner and go with a robot. I'd really love to not have the suction cleaner anymore as it doesn't do a very good job and I manually vacuum once a week anyway. If I took off the constant suction side cleaner, I could run my pump at lower RPM's during the normal daytime filter/SWG operation. Anything that cuts down on RPMs is good in my opinion.
    I have not gone this route "yet", I can see myself doing it sometime in the future

    On a side note, I almost never have to vacuum ( I just bought one after a year ) My "the pool cleaner" is awesome at getting everything including sand and he just cruises around in there all the time... I wish I was closer, I could let you try it out for a week and see
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
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    Re: CVA-24T Actuator rotation direction

    I throw the robot in once a month.

    I've only seen pressure and suction cleaners in history books.
    -Brian-
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    Re: CVA-24T Actuator rotation direction

    I lost track of the count but it was, definitely over 10. I had a bunch of "EGG TIMER's" in the schedule that were leftovers in the programming because it was feared that someone would push the POOL LIGHT aux circuit and forget about it. I think the default run time for any circuit (aux or feature) is 12 hours. So that would be a bummer to do with a 500W halogen pool light.
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: CVA-24T Actuator rotation direction

    Quote Originally Posted by bdavis466 View Post
    I throw the robot in once a month.

    I've only seen pressure and suction cleaners in history books.
    Yup. Suction cleaner, RF EasyTouch remote, halogen pool and spa lights....we're rockin' it oooold school here...
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: CVA-24T Actuator rotation direction

    My pool would be a disaster if I only ran the robot once a month. Too much plant debris and dust/dirt. Although maybe being to devote more of the flow to the skimmer would catch more of it before it sank.

    When I did have a robot, I would need to run it weekly.
    Jason, TFP Moderator
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