{"product_id":"new-1pc-emerson-aae-5-hca-aae5hca-thermo-expansion-valve","title":"new 1PC  EMERSON AAE 5 HCA AAE5HCA Thermo Expansion Valve","description":"\u003c!-- SEO Introduction --\u003e\n\u003cdiv class=\"koeed-container\"\u003e\n  \u003ch2 style=\"color: #0056b3; border-left: 5px solid #16c8c8; padding-left: 15px;\"\u003eEmerson AAE 5 HCA Thermo Expansion Valve (TXV) | 5-Ton R-22 Replacement\u003c\/h2\u003e\n  \u003cp\u003eThe \u003cstrong\u003eEmerson AAE 5 HCA (AAE5HCA)\u003c\/strong\u003e is a highly reliable, hermetic design Thermal Expansion Valve (TXV) engineered for commercial air conditioning and refrigeration systems. Manufactured by Emerson (formerly ALCO Controls), the A-Series valves are renowned for their leak-free, stainless steel power assemblies and precise superheat control under fluctuating loads. Specifically configured for \u003cstrong\u003eR-22 refrigerant\u003c\/strong\u003e with a nominal capacity of \u003cstrong\u003e5 Tons\u003c\/strong\u003e, this externally equalized valve is an industry-standard drop-in replacement that ensures optimal evaporator efficiency and compressor protection.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eKey Applications:\u003c\/strong\u003e Commercial HVAC systems, medium-temperature refrigeration units, heat pumps, and industrial process chillers requiring precise liquid refrigerant metering.\u003c\/p\u003e\n\n  \u003c!-- Technical Specifications --\u003e\n  \u003ch3 style=\"color: #0056b3; margin-top: 25px;\"\u003eTechnical Specifications \u0026amp; Nomenclature\u003c\/h3\u003e\n  \u003cdiv style=\"overflow-x: auto;\"\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 600px; border: 1px solid #eeeeee;\"\u003e\n      \u003cthead\u003e\n        \u003ctr style=\"background-color: #16c8c8; color: #ffffff;\"\u003e\n          \u003cth style=\"padding: 12px; text-align: left; border: 1px solid #eeeeee;\"\u003eParameter\u003c\/th\u003e\n          \u003cth style=\"padding: 12px; text-align: left; border: 1px solid #eeeeee;\"\u003eSpecification \/ Model Breakdown\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr style=\"background-color: #f4fcfc;\"\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee; font-weight: bold;\"\u003eBrand \/ Manufacturer\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee;\"\u003eEmerson Climate Technologies (ALCO Controls)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafafa;\"\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee; font-weight: bold;\"\u003eValve Series (\"AAE\")\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee;\"\u003eA-Series Hermetic Valve; \"E\" indicates \u003cstrong\u003eExternally Equalized\u003c\/strong\u003e\n\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #f4fcfc;\"\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee; font-weight: bold;\"\u003eNominal Capacity (\"5\")\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee;\"\u003e5 Tons\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafafa;\"\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee; font-weight: bold;\"\u003eRefrigerant Code (\"H\")\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee;\"\u003eR-22\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #f4fcfc;\"\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee; font-weight: bold;\"\u003eCharge Type (\"C\")\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee;\"\u003eMedium Temperature \/ Air Conditioning Commercial Charge\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafafa;\"\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee; font-weight: bold;\"\u003eConnection Type (\"A\")\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee;\"\u003eODF Solder (Sweat Connections)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #f4fcfc;\"\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee; font-weight: bold;\"\u003eBody Material\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee;\"\u003eSolid Brass with Stainless Steel Diaphragm\/Power Assembly\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafafa;\"\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee; font-weight: bold;\"\u003eCondition\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px; border: 1px solid #eeeeee;\"\u003eNew, Original Replacement Part\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Application \u0026 Reliability --\u003e\n  \u003ch3 style=\"color: #0056b3; margin-top: 25px;\"\u003eDesign Advantages \u0026amp; Reliability\u003c\/h3\u003e\n  \u003cul style=\"line-height: 1.6; color: #333333;\"\u003e\n    \u003cli\u003e\n\u003cstrong style=\"color: #16c8c8;\"\u003eHermetic Construction:\u003c\/strong\u003e The joint-free, hermetically sealed body eliminates the risk of refrigerant leaks, ensuring long-term environmental compliance and system integrity.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong style=\"color: #16c8c8;\"\u003eStainless Steel Power Element:\u003c\/strong\u003e Highly resistant to corrosion from harsh operational environments and prevents power loss failure over time.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong style=\"color: #16c8c8;\"\u003eExternal Equalization:\u003c\/strong\u003e Essential for systems with significant pressure drops across the evaporator, ensuring accurate sensing and preventing evaporator starvation.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- Troubleshooting FAQ --\u003e\n  \u003ch3 style=\"color: #0056b3; margin-top: 25px;\"\u003eHVAC Installation \u0026amp; Troubleshooting FAQ\u003c\/h3\u003e\n  \u003cdiv style=\"background-color: #fafafa; border: 1px solid #eeeeee; padding: 15px; border-radius: 4px;\"\u003e\n    \u003cp\u003e\u003cstrong\u003eQ1: The newly installed AAE 5 HCA is \"hunting\" (superheat fluctuates wildly). How do I fix this?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cem\u003eA:\u003c\/em\u003e TXV hunting is usually caused by incorrect sensing bulb installation. Ensure the bulb is tightly strapped to a clean, horizontal section of the suction line. For pipes larger than 7\/8\", mount the bulb at the 4 o'clock or 8 o'clock position (never at the bottom, as oil pooling will distort temperature readings). Always wrap the bulb securely with thermal insulation tape.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eQ2: The evaporator is starving (high superheat, low suction pressure) despite opening the valve stem.\u003c\/strong\u003e\u003cbr\u003e\n    \u003cem\u003eA:\u003c\/em\u003e If adjusting the superheat stem does not increase flow, check for a restricted inlet liquid line filter drier, a plugged TXV inlet screen, or a loss of charge in the TXV power element head. Additionally, confirm that the system is not undercharged with R-22 refrigerant.\u003c\/p\u003e\n    \u003cp\u003e\u003cstrong\u003eQ3: Can I use this \"H\" designated valve for R-404A or R-410A systems?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cem\u003eA:\u003c\/em\u003e No. The \"H\" designation indicates the power element is specifically charged and calibrated for the pressure-temperature curve of R-22. Using it with different refrigerants will result in severe overfeeding or starving of the evaporator.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c!-- Structured Data (JSON-LD) --\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I fix TXV hunting or fluctuating superheat on the Emerson AAE 5 HCA?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Ensure the sensing bulb is securely strapped to a horizontal section of the suction line (at 4 or 8 o'clock for larger pipes, not the bottom) and thoroughly insulated. Poor bulb contact is the leading cause of hunting.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Why is the Emerson TXV starving the evaporator even when adjusted?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This can be caused by a plugged TXV inlet screen, a restricted liquid line filter drier, low system refrigerant charge, or a failed (depressurized) power element head.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can an Emerson 'H' series TXV be used with refrigerants other than R-22?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. The 'H' designation means it is calibrated specifically for R-22. Using it with other refrigerants like R-410A will cause incorrect superheat control.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"EMERSON","offers":[{"title":"Default Title","offer_id":44749077381305,"sku":"266966362177","price":70.58,"currency_code":"USD","in_stock":true}],"url":"https:\/\/koeed.com\/products\/new-1pc-emerson-aae-5-hca-aae5hca-thermo-expansion-valve","provider":"KOEED","version":"1.0","type":"link"}