{"product_id":"air-to-water-heat-pump-split-type","title":"Air to Water Heat Pump - Nordic ATW25 - Split Type - 2 Tons Nominal Cooling Capacity","description":"\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eTechnical Documents\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003ch1\u003eAir to Water Heat Pump - Nordic ATW25 - Split Type - 2 Tons Nominal Cooling Capacity\u003c\/h1\u003e\n\u003ch2 data-end=\"147\" data-start=\"125\"\u003e\u003cstrong data-end=\"147\" data-start=\"128\"\u003eSystem Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"534\" data-start=\"148\"\u003eThe \u003cstrong data-end=\"173\" data-start=\"152\"\u003eNordic ATW Series\u003c\/strong\u003e (introduced in 2015) is an \u003cstrong data-end=\"225\" data-start=\"201\"\u003eair-source heat pump\u003c\/strong\u003e designed for hydronic heating and cooling. Instead of using a geothermal ground loop, it exchanges heat with \u003cstrong data-end=\"350\" data-start=\"335\"\u003eoutdoor air\u003c\/strong\u003e. It’s a \u003cstrong data-end=\"375\" data-start=\"359\"\u003esplit system\u003c\/strong\u003e, which is unusual for this category, with an \u003cstrong data-end=\"437\" data-start=\"421\"\u003eoutdoor unit\u003c\/strong\u003e (coil, fan, expansion valve, sensor) and an \u003cstrong data-end=\"497\" data-start=\"482\"\u003eindoor unit\u003c\/strong\u003e (compressor, electronics, controls).\u003c\/p\u003e\n\u003ch2 data-end=\"560\" data-start=\"541\"\u003e\u003cstrong data-end=\"560\" data-start=\"544\"\u003eApplications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"831\" data-start=\"561\"\u003e\n\u003cli data-end=\"591\" data-start=\"561\"\u003e\n\u003cp data-end=\"591\" data-start=\"563\"\u003e\u003cstrong data-end=\"591\" data-start=\"563\"\u003eIn-floor radiant heating\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"623\" data-start=\"592\"\u003e\n\u003cp data-end=\"623\" data-start=\"594\"\u003e\u003cstrong data-end=\"623\" data-start=\"594\"\u003eLow-temperature radiators\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"699\" data-start=\"624\"\u003e\n\u003cp data-end=\"699\" data-start=\"626\"\u003e\u003cstrong data-end=\"660\" data-start=\"626\"\u003eDomestic hot water pre-heating\u003c\/strong\u003e (via indirect tank with hydronic coil)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"764\" data-start=\"700\"\u003e\n\u003cp data-end=\"764\" data-start=\"702\"\u003e\u003cstrong data-end=\"727\" data-start=\"702\"\u003eHydronic air handlers\u003c\/strong\u003e (for heating \u0026amp; cooling distribution)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"865\" data-start=\"838\"\u003e\u003cstrong data-end=\"865\" data-start=\"841\"\u003eOperation \u0026amp; Controls\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1389\" data-start=\"866\"\u003e\n\u003cli data-end=\"928\" data-start=\"866\"\u003e\n\u003cp data-end=\"928\" data-start=\"868\"\u003eHeats or cools a \u003cstrong data-end=\"900\" data-start=\"885\"\u003ebuffer tank\u003c\/strong\u003e to a user-defined setpoint.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"989\" data-start=\"929\"\u003e\n\u003cp data-end=\"989\" data-start=\"931\"\u003eZones receive conditioned water via \u003cstrong data-end=\"988\" data-start=\"967\"\u003ezone valves\/pumps\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1064\" data-start=\"990\"\u003e\n\u003cp data-end=\"1064\" data-start=\"992\"\u003eOptional \u003cstrong data-end=\"1022\" data-start=\"1001\"\u003edual buffer tanks\u003c\/strong\u003e allow for heating \u0026amp; cooling availability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1218\" data-start=\"1065\"\u003e\n\u003cp data-end=\"1087\" data-start=\"1067\"\u003e\u003cstrong data-end=\"1086\" data-start=\"1067\"\u003eControl options\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul data-end=\"1218\" data-start=\"1090\"\u003e\n\u003cli data-end=\"1154\" data-start=\"1090\"\u003e\n\u003cp data-end=\"1154\" data-start=\"1092\"\u003eBuilt-in routines (default buffer tank temperature management)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1181\" data-start=\"1157\"\u003e\n\u003cp data-end=\"1181\" data-start=\"1159\"\u003e\u003cstrong data-end=\"1169\" data-start=\"1159\"\u003eBACnet\u003c\/strong\u003e integration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1218\" data-start=\"1184\"\u003e\n\u003cp data-end=\"1218\" data-start=\"1186\"\u003e\u003cstrong data-end=\"1207\" data-start=\"1186\"\u003eExternal aquastat\u003c\/strong\u003e (optional)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1389\" data-start=\"1219\"\u003e\n\u003cp data-end=\"1272\" data-start=\"1221\"\u003eControlled by the \u003cstrong data-end=\"1266\" data-start=\"1239\"\u003eGEN2 programmable board\u003c\/strong\u003e with:\u003c\/p\u003e\n\u003cul data-end=\"1389\" data-start=\"1275\"\u003e\n\u003cli data-end=\"1314\" data-start=\"1275\"\u003e\n\u003cp data-end=\"1314\" data-start=\"1277\"\u003eLaptop connectivity (via free PC App)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1342\" data-start=\"1317\"\u003e\n\u003cp data-end=\"1342\" data-start=\"1319\"\u003eData logging \u0026amp; graphing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1389\" data-start=\"1345\"\u003e\n\u003cp data-end=\"1389\" data-start=\"1347\"\u003eReal-time monitoring of electronic sensors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1429\" data-start=\"1396\"\u003e\u003cstrong data-end=\"1429\" data-start=\"1399\"\u003eDomestic Hot Water Support\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1647\" data-start=\"1430\"\u003e\n\u003cli data-end=\"1472\" data-start=\"1430\"\u003e\n\u003cp data-end=\"1472\" data-start=\"1432\"\u003eIntegrated \u003cstrong data-end=\"1472\" data-start=\"1443\"\u003edouble-wall desuperheater\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1529\" data-start=\"1473\"\u003e\n\u003cp data-end=\"1529\" data-start=\"1475\"\u003eProvides ~\u003cstrong data-end=\"1513\" data-start=\"1485\"\u003e5% of heat pump capacity\u003c\/strong\u003e to pre-heat DHW\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1581\" data-start=\"1530\"\u003e\n\u003cp data-end=\"1581\" data-start=\"1532\"\u003eOperates only during space heating\/cooling cycles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1647\" data-start=\"1582\"\u003e\n\u003cp data-end=\"1647\" data-start=\"1584\"\u003eSafe for potable water since lines are indoors (no freeze risk)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1680\" data-start=\"1654\"\u003e\u003cstrong data-end=\"1680\" data-start=\"1657\"\u003eDesign \u0026amp; Components\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1932\" data-start=\"1681\"\u003e\n\u003cli data-end=\"1715\" data-start=\"1681\"\u003e\n\u003cp data-end=\"1715\" data-start=\"1683\"\u003e\u003cstrong data-end=\"1697\" data-start=\"1683\"\u003eCompressor\u003c\/strong\u003e: Two-stage scroll\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1766\" data-start=\"1716\"\u003e\n\u003cp data-end=\"1766\" data-start=\"1718\"\u003e\u003cstrong data-end=\"1734\" data-start=\"1718\"\u003eOutdoor coil\u003c\/strong\u003e: E-coated (corrosion resistant)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1834\" data-start=\"1767\"\u003e\n\u003cp data-end=\"1834\" data-start=\"1769\"\u003e\u003cstrong data-end=\"1796\" data-start=\"1769\"\u003eHydronic heat exchanger\u003c\/strong\u003e: Copper\/steel coaxial (CuNi optional)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1881\" data-start=\"1835\"\u003e\n\u003cp data-end=\"1881\" data-start=\"1837\"\u003e\u003cstrong data-end=\"1848\" data-start=\"1837\"\u003eCabinet\u003c\/strong\u003e: Galvanized, powder-coated steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1932\" data-start=\"1882\"\u003e\n\u003cp data-end=\"1932\" data-start=\"1884\"\u003e\u003cstrong data-end=\"1899\" data-start=\"1884\"\u003eElectronics\u003c\/strong\u003e: Protected indoors for longevity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1956\" data-start=\"1939\"\u003e\u003cstrong data-end=\"1956\" data-start=\"1942\"\u003eAdvantages\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2226\" data-start=\"1957\"\u003e\n\u003cli data-end=\"2017\" data-start=\"1957\"\u003e\n\u003cp data-end=\"2017\" data-start=\"1959\"\u003e\u003cstrong data-end=\"1988\" data-start=\"1959\"\u003eMinimal outdoor servicing\u003c\/strong\u003e (critical parts are indoors)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2064\" data-start=\"2018\"\u003e\n\u003cp data-end=\"2064\" data-start=\"2020\"\u003e\u003cstrong data-end=\"2046\" data-start=\"2020\"\u003eNo antifreeze required\u003c\/strong\u003e in the water loop\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2098\" data-start=\"2065\"\u003e\n\u003cp data-end=\"2098\" data-start=\"2067\"\u003e\u003cstrong data-end=\"2091\" data-start=\"2067\"\u003eNo compressor heater\u003c\/strong\u003e needed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2162\" data-start=\"2099\"\u003e\n\u003cp data-end=\"2162\" data-start=\"2101\"\u003e\u003cstrong data-end=\"2128\" data-start=\"2101\"\u003eLongevity \u0026amp; reliability\u003c\/strong\u003e (components in conditioned space)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2226\" data-start=\"2163\"\u003e\n\u003cp data-end=\"2226\" data-start=\"2165\"\u003e\u003cstrong data-end=\"2206\" data-start=\"2165\"\u003eDirect potable water heating possible\u003c\/strong\u003e (via desuperheater)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003ca rel=\"noopener\" title=\"Specifications\" href=\"https:\/\/www.nordicghp.com\/wp-content\/uploads\/2025\/08\/003052SPC-01-ATW-25-HACW-Two-Stage-R454b.pdf\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0010\/8458\/8093\/files\/17.png?v=1707225515\" alt=\"Specifications\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hydro Solar Innovative Energy","offers":[{"title":"ATW-25","offer_id":13926239141949,"sku":"32010201","price":13265.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/8458\/8093\/products\/atw-25-air-to-water-heat-pump-nordic-atw25-split-type-2-tons-nominal-cooling-capacity-17892295671969.jpg?v=1594781909","url":"https:\/\/hydrosolar.ca\/en-us\/products\/air-to-water-heat-pump-split-type","provider":"Hydro Solar Innovative Energy","version":"1.0","type":"link"}