{"product_id":"hayward-powerflo-matrix-1-5-hp-2-speed-above-ground-pool-pump","title":"Hayward PowerFlo Matrix 1.5 HP 2-Speed Above Ground Pool Pump","description":"\u003c!-- more --\u003e\n\u003cstyle\u003e\n  .product-description {\n    color: inherit;\n    line-height: 1.75;\n    max-width: 860px;\n  }\n  .product-description h2 {\n    font-size: 1.2rem;\n    font-weight: 700;\n    margin: 2rem 0 0.6rem;\n    border-bottom: 2px solid #cce0ff;\n    padding-bottom: 0.3rem;\n  }\n  .product-description h3 {\n    font-size: 1rem;\n    font-weight: 700;\n    margin: 1.5rem 0 0.4rem;\n  }\n  .product-description p { margin: 0 0 1rem; }\n  .product-description ul { margin: 0 0 1rem 1.4rem; padding: 0; }\n  .product-description ul li { margin-bottom: 0.4rem; }\n  .product-description .note {\n    background-color: #edf5fc;\n    border-left: 4px solid #0066cc;\n    padding: 0.75rem 1rem;\n    font-size: 0.93rem;\n    margin: 1rem 0;\n  }\n  .product-description .doc-links {\n    background-color: #f0f6ff;\n    border-left: 4px solid #0066cc;\n    padding: 0.75rem 1rem;\n    margin: 1.5rem 0;\n    border-radius: 0 4px 4px 0;\n  }\n  .product-description .doc-links h2 {\n    border-bottom: none;\n    margin: 0 0 0.4rem;\n    font-size: 1rem;\n    padding-bottom: 0;\n  }\n  .product-description .doc-links ul { margin: 0 0 0 1.2rem; }\n\u003c\/style\u003e\n\u003cdiv itemtype=\"https:\/\/schema.org\/Product\" itemscope=\"\" class=\"product-description\"\u003e\n\u003cmeta itemprop=\"name\" content=\"Hayward PowerFlo Matrix 1.5 HP 2-Speed Above Ground Pool Pump W3SP1520\"\u003e \u003cmeta itemprop=\"brand\" content=\"Hayward\"\u003e \u003cmeta itemprop=\"sku\" content=\"W3SP1520\"\u003e \u003cmeta itemprop=\"category\" content=\"Pool Pump\"\u003e\n\u003cp itemprop=\"description\"\u003eThe Hayward PowerFlo Matrix W3SP1520 is a 1.5 HP 2-speed above ground pool pump. High speed (3450 RPM) for vacuuming and peak circulation; low speed (1725 RPM) for quiet, energy-efficient overnight filtration. Same compact Matrix body and side-discharge design as the single speed models. 1-year limited warranty.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSKU: W3SP1520\u003c\/li\u003e\n\u003cli\u003e1 year warranty\u003c\/li\u003e\n\u003cli\u003e2-speed above ground pool pump: 3450 RPM (high) and 1725 RPM (low)\u003c\/li\u003e\n\u003cli\u003e1.5 HP at high speed; low speed draws approx. one-eighth the power of high speed\u003c\/li\u003e\n\u003cli\u003e115V; 14.2A at high speed; approx. 3.5A at low speed\u003c\/li\u003e\n\u003cli\u003eSpeed is selected by external wiring or timer; requires a two-circuit timer or dual-relay setup\u003c\/li\u003e\n\u003cli\u003eSame compact Matrix body, side-discharge port, and front-access basket as the single speed Matrix models\u003c\/li\u003e\n\u003cli\u003eDirect plumbing replacement for the PowerFlo Matrix 1.5 HP single speed; no replumbing required\u003c\/li\u003e\n\u003cli\u003eSelf-priming; always start on high speed for initial prime\u003c\/li\u003e\n\u003cli\u003eCompatible with 1.5\" and 2\" above ground pool plumbing connections\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant polymer housing; UL Listed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHayward PowerFlo Matrix 2-Speed Above Ground Pool Pump W3SP1520\u003c\/h2\u003e\n\u003cp\u003eThe W3SP1520 is a 2-speed pump, not a variable speed pump. It has two fixed operating speeds: 3450 RPM (high) for vacuuming, running a suction-side cleaner, and recovering water quality, and 1725 RPM (low) for overnight filtration where you want lower energy draw and less noise. Because power scales with the cube of motor speed, dropping to half the RPM uses roughly one-eighth the electricity. Running low speed for 8 to 10 hours overnight rather than high speed for a shorter window is where most of the savings come from.\u003c\/p\u003e\n\u003cp\u003eThe pump body is physically identical to the single speed Matrix models, so it drops into an existing Matrix installation without any plumbing changes. The only difference is the electrical wiring, which needs a two-circuit timer or switch to control both speed leads.\u003c\/p\u003e\n\u003ch2\u003eHow 2-Speed Control Works on the W3SP1520\u003c\/h2\u003e\n\u003cp\u003eTwo-speed motors have two independent winding sets inside the motor housing, each with its own wire lead. Speed selection is a wiring decision, not a setting on the pump. In practice this means you need either a two-speed timer (which switches between the high and low speed leads on a daily schedule) or a two-position switch for manual selection at the equipment pad. A standard single-circuit pool timer can only control one speed; it cannot switch between both leads automatically.\u003c\/p\u003e\n\u003cdiv class=\"note\"\u003eTwo-speed pump wiring connects multiple motor leads to a timer or switching circuit. If you are not experienced with pool equipment wiring, a licensed electrician should handle this. An incorrect connection between the high and low speed leads can damage the motor. Always refer to the wiring diagram in the installation documentation before beginning electrical work.\u003c\/div\u003e\n\u003ch2\u003eHayward PowerFlo Matrix 2-Speed W3SP1520 - Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ccaption\u003eHayward PowerFlo Matrix 1.5 HP 2-Speed Above Ground Pool Pump W3SP1520 - Full Specifications\u003c\/caption\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU \/ Model\u003c\/td\u003e\n\u003ctd\u003eW3SP1520\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Type\u003c\/td\u003e\n\u003ctd\u003e2-Speed (not variable speed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Horsepower\u003c\/td\u003e\n\u003ctd\u003e1.5 HP (high speed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh Speed RPM\u003c\/td\u003e\n\u003ctd\u003e3450 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow Speed RPM\u003c\/td\u003e\n\u003ctd\u003e1725 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e115V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmperage (High Speed)\u003c\/td\u003e\n\u003ctd\u003e14.2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmperage (Low Speed)\u003c\/td\u003e\n\u003ctd\u003eApprox. 3.5A (confirm against motor nameplate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Control\u003c\/td\u003e\n\u003ctd\u003eExternal two-circuit timer or dual-position switch; not controlled on the pump itself\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge Orientation\u003c\/td\u003e\n\u003ctd\u003eSide discharge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort Size\u003c\/td\u003e\n\u003ctd\u003e1.5\" and 2\" connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBasket Access\u003c\/td\u003e\n\u003ctd\u003eFront-access strainer basket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePool Application\u003c\/td\u003e\n\u003ctd\u003eAbove ground pools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eCorrosion-resistant polymer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL Listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"note\"\u003eLow-speed amperage is approximate. Confirm exact ratings against the motor nameplate and installation documentation before wiring the low-speed circuit.\u003c\/div\u003e\n\u003ch2\u003eHayward PowerFlo Matrix Above Ground Pool Pump - Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this a variable speed pump?\u003c\/summary\u003e\n\u003cp\u003eNo. The W3SP1520 is a 2-speed pump with two fixed speeds: 3450 RPM (high) and 1725 RPM (low). Variable speed pumps have a continuous range of speeds and programmable schedules; this pump switches between two fixed settings using external wiring. It costs less than a variable speed model and is simpler to control, but does not offer the fine-tuned energy optimization of a full variable speed system.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan it replace a single speed Matrix 1.5 HP without replumbing?\u003c\/summary\u003e\n\u003cp\u003eYes. The W3SP1520 uses the same body dimensions, port positions, and plumbing connections as the PowerFlo Matrix 1.5 HP single speed. No plumbing modification is required. Only the electrical wiring changes to accommodate the second motor lead for low-speed operation. The 20-amp circuit requirement is the same as the single speed 1.5 HP.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat timer or switch do I need to run both speeds?\u003c\/summary\u003e\n\u003cp\u003eA standard single-circuit outdoor pool timer cannot switch between both motor leads automatically. You need either a two-speed mechanical timer (which manages both leads on a daily schedule) or a two-position switch wired to both leads for manual speed selection at the equipment pad. The installation guide documents the wiring configuration for both options.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eShould I start the pump on high or low speed?\u003c\/summary\u003e\n\u003cp\u003eAlways start on high speed for initial priming. High speed produces the suction needed to draw water through the system and clear air from the plumbing. Once the pump is primed and water is circulating, the timer or switch can transition to low speed for the filtration cycle. Starting directly on low speed when the system is not already primed can stress the shaft seal and may not establish full prime before thermal protection activates.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow much does the low-speed setting actually save on electricity?\u003c\/summary\u003e\n\u003cp\u003eBecause power scales with the cube of motor speed, dropping from 3450 RPM to 1725 RPM (half the speed) cuts power draw to roughly one-eighth of high speed. The low-speed setting draws approximately 3 to 4 amps at 115V versus 14.2 amps at high speed. Running low speed for 8 hours overnight instead of high speed for the same period reduces that portion of electricity consumption by roughly 75%. Actual dollar savings depend on your local electricity rate and daily run schedule.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdiv aria-label=\"Hayward PowerFlo Matrix 2-Speed Above Ground Pool Pump W3SP1520 Manual and Warranty Info\" role=\"complementary\" class=\"doc-links\"\u003e\n\u003ch2\u003eHayward PowerFlo Matrix 2-Speed Above Ground Pool Pump W3SP1520 Manual and Warranty Info\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"\/files\/hayward-powerflo-matrix-1-5hp-2-speed-w3sp1520-owners-manual.pdf\" target=\"_blank\"\u003eHayward PowerFlo Matrix 1.5 HP 2-Speed W3SP1520 - Owner's Manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"\/files\/hayward-powerflo-matrix-1-5hp-2-speed-w3sp1520-installation-guide.pdf\" target=\"_blank\"\u003eHayward PowerFlo Matrix 1.5 HP 2-Speed W3SP1520 - Installation and Wiring Guide (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\/\",\n    \"@type\": \"Product\",\n    \"name\": \"Hayward PowerFlo Matrix 1.5 HP 2-Speed Above Ground Pool Pump W3SP1520\",\n    \"brand\": {\n      \"@type\": \"https:\/\/schema.org\/Brand\",\n      \"name\": \"Hayward\"\n    },\n    \"sku\": \"W3SP1520\",\n    \"description\": \"Hayward PowerFlo Matrix 1.5 HP 2-speed above ground pool pump. SKU W3SP1520. High speed 3450 RPM for vacuuming and peak circulation; low speed 1725 RPM for quiet, energy-efficient overnight filtration. 115V, 14.2A high speed. Side discharge, front-access basket. 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