{"product_id":"icp-40va-transformer-for-wpg4244040rka1-208-230v-to-24v-ships-today","title":"ICP 40VA Transformer for WPG4244040RKA1 — 208\/230V to 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM 40VA control transformer (ICP part #1173691, supplied with terminal barrier #1178431) steps the 208\/230V line voltage down to the 24V control voltage that powers the thermostat, control board, gas valve, contactor coil, and safety circuits in ICP, Heil, Tempstar, and Comfortmaker WPG-series packaged units. A 40VA rating provides enough secondary current to drive the full low-voltage control load with margin. When a transformer fails — typically from a shorted secondary, an overloaded control circuit, or a power surge — the entire 24V system goes dead: no thermostat display, no inducer, no ignition, and no cooling call. The included 24V barrier protects the wiring connections and keeps the low-voltage leads organized and insulated at the transformer.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Numbers\u003c\/td\u003e\n\u003ctd\u003e1173691 (transformer), 1178431 (24V barrier)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eStep-Down Control Transformer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP (Heil \/ Tempstar \/ Comfortmaker)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRating\u003c\/td\u003e\n\u003ctd\u003e40 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Voltage\u003c\/td\u003e\n\u003ctd\u003e208\/230V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDirect OEM replacement for the ICP\/Tempstar\/Heil WPG4244040RKA1 packaged gas\/electric unit and other WPG-series cabinets using a 40VA 208\/230-to-24V control transformer. Verify your primary supply is 208\/230V and the VA rating matches before installing.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the breaker and unit disconnect, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control\/electrical access panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all primary and secondary leads before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and disconnect the line-voltage primary and 24V secondary wires, then unbolt the failed transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer, fit the 24V barrier, and reconnect primary and secondary per your photo, confirming the correct primary tap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and verify ~24V across the secondary and normal thermostat\/control operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo 24V control power — thermostat blank, nothing energizes\u003c\/li\u003e\n\u003cli\u003eRepeatedly blown control fuse or fried transformer\u003c\/li\u003e\n\u003cli\u003eBuzzing, scorched, or visibly burnt transformer body\u003c\/li\u003e\n\u003cli\u003eMeasured secondary voltage well below 24V under load\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"OEM","offer_id":63021519503731,"sku":"1178431","price":41.6,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047389118835,"sku":"1178431-GEN","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1178431_5c70ee36-b9aa-4ba1-b4c3-2f76cae7221a.jpg?v=1782883287","url":"https:\/\/nationalhvacparts.com\/products\/icp-40va-transformer-for-wpg4244040rka1-208-230v-to-24v-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}