{"product_id":"icp-transformer-for-wpg3484130rkc1-40va-208-230v-to-24v-ships-today","title":"ICP Transformer for WPG3484130RKC1 — 40VA 208\/230V to 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM control transformer provides the 24V low-voltage power that operates the control board, contactor coil, ignition control, and thermostat circuit on your ICP WPG3484130RKC1. Rated at 40VA with a dual 208\/230V primary and a 24V secondary, it powers the entire control side of the unit. When it fails, the low-voltage circuit goes dead — no thermostat display, no call for heating or cooling, and no contactor engagement even though line voltage is present. This package includes the OEM transformer (part 1173691) and the 24V terminal barrier (part 1178431) for landing and isolating the low-voltage connections.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\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 Number\u003c\/td\u003e\n\u003ctd\u003e1173691 (transformer), 1178431 (barrier)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eControl \/ Class 2 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 \/ 230 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eEngineered for the ICP WPG3484130RKC1 packaged unit and shared across many Heil, Tempstar, and Comfortmaker furnaces, air handlers, and package units using the same 40VA 208\/230-to-24V control transformer. Confirm the printed part number on your existing transformer before ordering.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter on both line and low-voltage terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control-panel service panel to expose the transformer and wiring barrier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all primary and secondary wires before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the primary leads matched to your supply voltage, the 24V secondary leads, and unbolt the transformer from the panel; transfer the barrier if reusing landing terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer, land the correct primary taps for 208V or 230V, and reconnect the 24V secondary per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm 24VAC across the secondary and a normal thermostat call.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNo 24V control power — thermostat blank and unit unresponsive.\u003c\/li\u003e\n\u003cli\u003eRepeatedly blown low-voltage fuse or tripped control circuit.\u003c\/li\u003e\n\u003cli\u003eBuzzing, overheated, or visibly scorched transformer body.\u003c\/li\u003e\n\u003cli\u003eMeasured secondary voltage well below 24VAC under load.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\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":63021524877683,"sku":"1178431","price":33.8,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047751795059,"sku":"1178431-GEN","price":26.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1178431_a162c629-5ea2-405e-8b95-7f013f055e12.jpg?v=1782896797","url":"https:\/\/nationalhvacparts.com\/products\/icp-transformer-for-wpg3484130rkc1-40va-208-230v-to-24v-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}