{"product_id":"tempstar-ptac-low-temp-thermostat-kit-for-thb09r25dca-24v-control-with-knob-ships-today","title":"Tempstar PTAC Low-Temp Thermostat Kit for THB09R25DCA — 24V Control with Knob | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM PTAC thermostat kit provides complete temperature control for the Tempstar THB09R25DCA packaged terminal unit. It includes the 24V PTAC thermostat (OEM 1058517), the low-temperature cutout thermostat (OEM 1059022) that protects the unit in cold conditions, and the matching control knob (OEM 1058437). Together they set the comfort temperature and guard against low-temperature operation. Symptoms of failure include the unit ignoring the setpoint, running nonstop, short-cycling, or tripping out in cold weather. Installing the factory-correct thermostat set restores accurate, protected control.\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\u003e1058517 (TSTAT PTAC), 1059022 (TSTAT LOW TEMP), 1058437 (KNOB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePTAC Thermostat with Low-Temp Cutout and Knob\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar (Heil \/ ICP family)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eTHB09R25DCA\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-fit replacement for the Tempstar THB09R25DCA PTAC. The thermostat, low-temp cutout, and knob are shared across Heil, ICP, and Comfortmaker PTAC equipment in the THB09 series. Verify your existing part numbers before ordering for an exact match.\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 unit and breaker, verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the front grille and control panel cover to reach the thermostat assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all wiring and the low-temp sensor routing before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Pull the knob, release both stats from their brackets, and disconnect the 24V leads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new thermostat and low-temp cutout, reconnect per your photo, and seat the knob.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and verify the unit responds to setpoint changes and holds in heat and cool.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUnit never reaches the set temperature or runs continuously.\u003c\/li\u003e\n\u003cli\u003eKnob no longer changes the setpoint.\u003c\/li\u003e\n\u003cli\u003eNuisance tripping or shutdown in cold conditions.\u003c\/li\u003e\n\u003cli\u003eShort-cycling or no response to the dial.\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":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021638320499,"sku":"1058437-GEN","price":45.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048470692211,"sku":"1058437","price":59.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-thermostat-nonprogrammable-1058437_723fea21-08af-48f4-b3dc-130c118a49c2.jpg?v=1782960733","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-ptac-low-temp-thermostat-kit-for-thb09r25dca-24v-control-with-knob-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}