{"product_id":"johnson-controls-a28gj-33c-two-stage-temperature-control","title":"Johnson Controls A28GJ-33C Two Stage Temperature Control","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe JOHNSON CONTROLS A28GJ-33C is a two-stage remote bulb temperature control designed for precise setpoint-based switching in HVAC and refrigeration applications. It operates across a setpoint range of 60 to 90 degrees F and features two SPDT (single-pole, double-throw) output circuits, allowing independent control of two stages of heating or cooling equipment. The remote bulb measures 3\/8 inch in diameter and 3.5 inches in length, with a 60-inch capillary tube that allows the sensing element to be positioned away from the control body. Licensed HVAC technicians and refrigeration service professionals are the primary installers of this device.\u003c\/p\u003e\u003cp\u003eThis temperature control is suited for commercial and light commercial HVAC systems, refrigeration equipment, and process temperature applications where two-stage switching is required. The remote bulb configuration makes it appropriate for installations where the sensing point must be physically separated from the control panel or enclosure, such as in walk-in coolers, air handlers, or duct-mounted sensing applications within the 60 to 90 degrees F operating range.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTwo-stage control with independent SPDT outputs for sequencing heating or cooling stages\u003c\/li\u003e\n\u003cli\u003eSetpoint range of 60 to 90 degrees F suits a wide range of HVAC and refrigeration applications\u003c\/li\u003e\n\u003cli\u003eRemote bulb sensing element: 3\/8 inch diameter by 3.5 inches length\u003c\/li\u003e\n\u003cli\u003e60-inch capillary tube allows flexible placement of the sensing bulb\u003c\/li\u003e\n\u003cli\u003eSPDT switching on both stages supports normally open and normally closed circuit configurations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement for two-stage remote bulb temperature controls used in commercial and light commercial HVAC and refrigeration systems requiring a 60 to 90 degrees F setpoint range with dual SPDT outputs.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed HVAC technician or refrigeration mechanic. Disconnect all power to the controlled equipment before wiring or replacing this control. Route the capillary tube carefully to avoid kinking, and secure the remote bulb firmly at the sensing location to ensure accurate temperature response. Follow applicable local codes and the equipment manufacturer's wiring diagram when connecting the SPDT output circuits.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl Type\u003c\/strong\u003e: Two Stage Remote Bulb Temperature Control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetpoint Range\u003c\/strong\u003e: 60 to 90 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs\u003c\/strong\u003e: 2 SPDT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapillary Length\u003c\/strong\u003e: 60 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulb Diameter\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulb Length\u003c\/strong\u003e: 3.5 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: JOHNSON CONTROLS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: A28GJ-33C\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JOHNSON CONTROLS","offers":[{"title":"Default Title","offer_id":51284015808818,"sku":"A28GJ-33C","price":465.66,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309279037.jpg?v=1781066119","url":"https:\/\/voomisupply.com\/products\/johnson-controls-a28gj-33c-two-stage-temperature-control","provider":"Voomi Supply","version":"1.0","type":"link"}