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Thread: Two blower motor questions, how to determine to get a 120 or 240, and 1hp or 1.5 hp.

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    Two blower motor questions, how to determine to get a 120 or 240, and 1hp or 1.5 hp.

    The blower motor in my pool's dead (completely, rusted through). I'm interested in replacing it but need to determine the following.

    1) Whether the voltage is 120 or 240. Is there a way to take the old one apart to make this determination?
    2) Whether to get a 1 or 1.5 hp motor.

    I believe there are 4 air vents in the sauna. I can't read the notes on the old motor, they've been worn away.

    Based in Texas. Thank you.
    Inground Gunite/Plaster pool with spa. Estimated 31,000 gallons.

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    Mod Squad jblizzle's Avatar
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    Re: Two blower motor questions, how to determine to get a 120 or 240, and 1hp or 1.5

    What breaker is the blower powered by? That is the easiest way to determine the voltage, assuming the installer did not do something dumb.

    Not sure about the motor size. What did you have? I might go large and add a valve to restrict the air flow if it was too much.
    Jason, TFP Moderator
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    Re: Two blower motor questions, how to determine to get a 120 or 240, and 1hp or 1.5

    I'll flip switches tomorrow to determine the breaker size.

    I wish I could tell you what it was but everything identifiable has been worn away. I can easily take it apart.. but dunno if anything would be identifiable on the motor. Is there an alternative way to estimate hp amount?
    Inground Gunite/Plaster pool with spa. Estimated 31,000 gallons.

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    Re: Two blower motor questions, how to determine to get a 120 or 240, and 1hp or 1.5

    If you have two black wires and a green wire to the blower it is probably 220 V. If you have a black and white wire along with a green wire it is probably 120 V. Can you access where the wires going to the blower terminate? If you have a multi-meter you can measure the voltages there. If you do not have a multi-meter or can't borrow one, then Harbor Freight has them for like 8 bucks.
    38000 Gal, IG, Plaster, 20' x 40' x 10', Attached Raised Spa, Intelliflo VS 3 HP (011018), Pentair Quad DE 60 Filter, Raypak (Rheem) 400,000 BTU (407a low Nox), Easy Touch 8 upgrade, Screenlogic 2 with wireless, IS-4 Spa Side Remote, Stenner 45MPHP10 w/15 gal tank, Intellibrite 5g (3), Dolphin Triton Plus robot with PRO remote, Water Tech Catfish handheld vacuum for spa, TF100 with SpeedStir.

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    Mod Squad jblizzle's Avatar
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    Re: Two blower motor questions, how to determine to get a 120 or 240, and 1hp or 1.5

    Or get one free right now at harbor freight with any purchase ... Coupons are readily available
    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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