{"product_id":"icp-40va-transformer-208-230v-to-24v-for-wja330000ktp0a1-oem-1173691-w-barrier-ships-today","title":"ICP 40VA Transformer 208\/230V to 24V for WJA330000KTP0A1 — OEM 1173691 w\/ Barrier | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM control transformer kit, primary OEM part number 1173691 (TRANS 208\/230\u0026gt;24 40VA) with the matching OEM 1176032 24V barrier, powers the 24-volt low-voltage control circuit on the ICP\/Tempstar\/Heil WJA330000KTP0A1 system. The transformer steps 208\/230V line power down to 24V to drive the contactor coil, control board, and thermostat circuit; the barrier provides required low-voltage separation and terminal protection. When the transformer fails you lose all 24V control — no contactor pull-in, a dead thermostat, and a system that simply won't start even though line voltage is present.\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 Number (Transformer)\u003c\/td\u003e\n\u003ctd\u003e1173691\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (Barrier)\u003c\/td\u003e\n\u003ctd\u003e1176032\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 \/ Tempstar \/ Heil\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eBuilt for the ICP\/Tempstar\/Heil model WJA330000KTP0A1 and related WJA-series units using a 40VA 208\/230V-to-24V control transformer. Confirm your existing transformer is rated 40VA with a 208\/230V primary 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 verify zero voltage at the line terminals with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the control-box \/ electrical service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all primary and secondary leads and the barrier position before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the primary and 24V secondary wiring and unfasten the old transformer and barrier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new transformer and barrier, match the primary tap to your supply voltage, and reconnect the secondary per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm ~24V across the secondary and proper contactor\/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 output measured across the secondary terminals.\u003c\/li\u003e\n\u003cli\u003eContactor will not pull in and thermostat is unresponsive.\u003c\/li\u003e\n\u003cli\u003eTransformer is hot, buzzing, or visibly burned\/discolored.\u003c\/li\u003e\n\u003cli\u003eBlown low-voltage fuse or repeated control-circuit faults.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day on orders placed before 3 PM CST. 30-day returns on uninstalled parts. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"Direct Replacement","offer_id":63021559087475,"sku":"1176032-GEN","price":34.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047950958963,"sku":"1176032","price":45.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-1176032.jpg?v=1782882368","url":"https:\/\/nationalhvacparts.com\/products\/icp-40va-transformer-208-230v-to-24v-for-wja330000ktp0a1-oem-1173691-w-barrier-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}