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Thread: Converting Jandy Stealth jhp2 pool motor with a 2 speed?

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    Converting Jandy Stealth jhp2 pool motor with a 2 speed?

    I currently have a Jandy Stealth jhp2 pool pump and single speed motor. I'd like the benefit of running a dual speed motor, without the cost of switching out my entire pool pump. Can I simply replace/rewire the motor itself? I've seen other topics on similar subjects and it would appear you can, but I'm not sure if there is a motor available that I can retrofit my pump with. Any guidance would be much appreciated, thanks.
    Pool Size - Aprox 20,000 gallons - In-ground pool - plaster
    DE Filter - 2HP single speed pump/motor
    Pool built in 2006
    Attached spa
    "The Pool Cleaner" pressure side cleaner

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    Mod Squad jblizzle's Avatar
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    Re: Converting Jandy Stealth jhp2 pool motor with a 2 speed?

    Welcome to TFP!!!

    You should be able to just switch out the motor and add a manual switch (or an extra timer to change speeds) ... your needs kind of depend on your setup. SO, Please add your pool details and location as described HERE as it will help us help you.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: Converting Jandy Stealth jhp2 pool motor with a 2 speed?

    Thanks - information added to my signature:

    Pool Size - Aprox 20,000 gallons
    In-ground pool - plaster
    DE Filter
    2HP single speed pump/motor
    Pool built in 2006
    Attached spa
    "The Pool Cleaner" pressure side cleaner
    Pool Size - Aprox 20,000 gallons - In-ground pool - plaster
    DE Filter - 2HP single speed pump/motor
    Pool built in 2006
    Attached spa
    "The Pool Cleaner" pressure side cleaner

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    Re: Converting Jandy Stealth jhp2 pool motor with a 2 speed?

    Also, the manual switch option for dual speed would be preferable.
    Pool Size - Aprox 20,000 gallons - In-ground pool - plaster
    DE Filter - 2HP single speed pump/motor
    Pool built in 2006
    Attached spa
    "The Pool Cleaner" pressure side cleaner

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    Mod Squad jblizzle's Avatar
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    Re: Converting Jandy Stealth jhp2 pool motor with a 2 speed?

    The same pump runs your spa correct? If so, then our usual recommendation of a smaller pump would not be good in your situation. So, we just need to find you a 2HP 2-speed motor. Some brands are also selling replacement caps for the back of the motor that have the switch built in, or you could wire your own switch closer to the timer.

    What filter do you have? size? Is it bypassed while in spa mode or not?

    BTW, can you please shorten the signature to a max of 5 lines as was stated in the link I sent you and the forum rules ... thanks
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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    Re: Converting Jandy Stealth jhp2 pool motor with a 2 speed?

    Signature corrected.

    Yes, the same pump handles both the spa and pool. The filter is not bypassed when in "spa only" mode.

    The filter is a Jandy Del60cp - its specs are:

    0
    Filter Area (ft2
    ) 60
    Design Flow Rate (gpm/ft2
    ) 2.00
    Max. Flow (gpm) 120
    Six Hour Capacity (gal.) 43,200
    Normal Start Up Pressure (psi) 6-15
    Max. Working Pressure (psi) 50
    Pool Size - Aprox 20,000 gallons - In-ground pool - plaster
    DE Filter - 2HP single speed pump/motor
    Pool built in 2006
    Attached spa
    "The Pool Cleaner" pressure side cleaner

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    Mod Squad jblizzle's Avatar
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    Re: Converting Jandy Stealth jhp2 pool motor with a 2 speed?

    OK, so that is a decent sized DE filter and the same size I had at my previous house with a 2HP motor running a spa as well.

    Can you post more info from the motor plate ... specifically looking for the HP and the Service Factor for reference. I assume it is wired for 230V too correct?
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Mod Squad jblizzle's Avatar
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    Re: Converting Jandy Stealth jhp2 pool motor with a 2 speed?

    [s:32bk4ha0]I think you are looking for a B985 motor.[/s:32bk4ha0] EDIT: or NOT the B985

    For the JHP looks like you either want the B977 (1.5HP*1.3SF) or the B979/B2979 (2HP*1.2SF) ... depends what you current motor is.

    Plus you will need a new seal kit and some sort of switch.

    EDIT2: Here is one example of a switch that I think would work for those motors: http://www.poolplaza.com/merchant.mv?Sc ... gory_Code=
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Re: Converting Jandy Stealth jhp2 pool motor with a 2 speed?

    The current motor is a 2.0HP, but it was upgraded by the pool builder at the time of installation - i.e. more hp's are better. Would knocking it down to the 1.5hp model be a problem? Obviously, less flow on the higher setting might impact my pressure side cleaner? It runs off a return jet and does not have a dedicated booster pump, but gets around fine. Would losing the extra .5hp on the high speed make it unusable?

    Thanks for all the great info - love this site.
    Pool Size - Aprox 20,000 gallons - In-ground pool - plaster
    DE Filter - 2HP single speed pump/motor
    Pool built in 2006
    Attached spa
    "The Pool Cleaner" pressure side cleaner

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    Mod Squad jblizzle's Avatar
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    Re: Converting Jandy Stealth jhp2 pool motor with a 2 speed?

    But what is the Service Factor listed on your existing motor?

    You could certainly go smaller, but that could impact your spa jet strength? And might impact the cleaner, but many use them with smaller pumps, can you isolate more return flow to the cleaner?

    The only concern with going with a smaller motor is that you have to ensure that the impeller is not designed for a larger motor ... if the impeller is bigger, you can burn out the smaller motor, but a smaller impeller could be bought and installed as well if required.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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    Re: Converting Jandy Stealth jhp2 pool motor with a 2 speed?

    Not sure on most of those questions - except, yes, I can isolate flows. Typically during normal pool operation, the water will flow to both the pool and the spa - the spa creates a small waterfall into the pool - this can be altered with a small valve that cuts off the spa and isolates the pool. I can isolated the spa as well, typically just for heating purposes. Probably makes sense to go with the 2HP model I'm guessing - thanks again.

    The switch mentioned in this post is a manual switch, correct? This would require no additional wiring to my timer - I'd simply have to manually determine when to change modes?
    Pool Size - Aprox 20,000 gallons - In-ground pool - plaster
    DE Filter - 2HP single speed pump/motor
    Pool built in 2006
    Attached spa
    "The Pool Cleaner" pressure side cleaner

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    Mod Squad jblizzle's Avatar
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    Re: Converting Jandy Stealth jhp2 pool motor with a 2 speed?

    Yes the switch can mount directly on the pump and there would be no changes to the existing wiring ... on LINE would go to the common terminal on the new pump and the other LINE would go to the center of the switch and then 2 wires from the switch go to the Low and High speed terminals.

    If you wanted to put a switch remotely, you would need to add another wire from the switch to the pump for a total of 4 including the ground.

    I am not 100% sure which of the motor switches will fit on the motor you need ... there are a few different designs I have seen.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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