{"product_id":"kaidi-gum-electric-defrost-ceiling-evaporators","title":"Kaidi GUM Series Large Ceiling-Mounted Evaporators with Electric Defrost","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003ch3\u003eKaidi GUM Series Large Ceiling-Mounted Evaporators\u003c\/h3\u003e\n\u003cp\u003eThe Kaidi GUM Series consists of large-capacity ceiling-mounted evaporators designed for industrial cold rooms, frozen-storage warehouses and other refrigeration facilities requiring high cooling capacity and long air throw.\u003c\/p\u003e\n\u003cp\u003eThe series uses 630 mm or 710 mm high-static-pressure external-rotor fans. Depending on the selected model, units are available with two, three or four fans.\u003c\/p\u003e\n\u003cp\u003eThree fin-spacing configurations—4.5 mm, 6.0 mm and 9.0 mm—allow the evaporator to be selected according to the required room temperature, humidity level and expected frost formation.\u003c\/p\u003e\n\u003cp\u003eAll models supplied on this product page are equipped with electric defrost. Stainless-steel heating elements are evenly installed through the evaporator coil and drain-pan area to provide uniform defrosting and reliable low-temperature operation.\u003c\/p\u003e\n\u003cp\u003eAs a Kaidi distributor, we supply the GUMDL, GUMDD and GUMDJ ranges. Model-selection support is available according to cooling load, room temperature, refrigerant, power supply and installation requirements.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLarge-capacity ceiling-mounted evaporator for industrial cold rooms\u003c\/li\u003e\n\u003cli\u003eElectric defrost included as standard\u003c\/li\u003e\n\u003cli\u003eStainless-steel heaters installed in the coil and drain-pan area\u003c\/li\u003e\n\u003cli\u003eUniform defrosting for low-temperature applications\u003c\/li\u003e\n\u003cli\u003e630 mm or 710 mm high-static-pressure external-rotor fans\u003c\/li\u003e\n\u003cli\u003eTwo-, three- or four-fan configurations\u003c\/li\u003e\n\u003cli\u003eLong air throw for large and high-ceiling cold-storage spaces\u003c\/li\u003e\n\u003cli\u003ePowder-coated galvanized-steel casing as standard\u003c\/li\u003e\n\u003cli\u003eOptional aluminium or stainless-steel casing\u003c\/li\u003e\n\u003cli\u003eInternally grooved heat-exchange tubes\u003c\/li\u003e\n\u003cli\u003eHydrophilic double-sine-wave aluminium fins\u003c\/li\u003e\n\u003cli\u003e4.5 mm, 6.0 mm and 9.0 mm fin-spacing options\u003c\/li\u003e\n\u003cli\u003eLow-pressure-drop Venturi-type refrigerant distributor\u003c\/li\u003e\n\u003cli\u003eIP65 waterproof electrical junction box\u003c\/li\u003e\n\u003cli\u003eStandard 1\/4-inch pressure access port\u003c\/li\u003e\n\u003cli\u003eOptional EC energy-saving fan motors\u003c\/li\u003e\n\u003cli\u003eOptional air-throw extension kit\u003c\/li\u003e\n\u003cli\u003eFactory cleaned, inspected and pressure-tested at 28 bar\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Overview\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eSeries Data\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eLarge ceiling-mounted evaporator \/ unit cooler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eCeiling-mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable series\u003c\/td\u003e\n\u003ctd\u003eGUMDL, GUMDD and GUMDJ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDefrost method\u003c\/td\u003e\n\u003ctd\u003eElectric defrost\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil defrost\u003c\/td\u003e\n\u003ctd\u003eStainless-steel electric heaters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrain-pan defrost\u003c\/td\u003e\n\u003ctd\u003eElectric heaters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFan diameter\u003c\/td\u003e\n\u003ctd\u003e630 mm or 710 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFan quantity\u003c\/td\u003e\n\u003ctd\u003e2, 3 or 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir volume\u003c\/td\u003e\n\u003ctd\u003eApproximately 23,500–60,000 m³\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir throw\u003c\/td\u003e\n\u003ctd\u003eApproximately 30–42 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeat-exchange area\u003c\/td\u003e\n\u003ctd\u003eApproximately 96.5–493.3 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFin spacing\u003c\/td\u003e\n\u003ctd\u003e4.5 mm, 6.0 mm or 9.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFan motor supply\u003c\/td\u003e\n\u003ctd\u003e3-phase, 380 V, 50 Hz – catalogue standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectric heater supply\u003c\/td\u003e\n\u003ctd\u003e1-phase, 220 V, 50 Hz – catalogue standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal fan motor power\u003c\/td\u003e\n\u003ctd\u003eApproximately 3.8–8.7 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerants\u003c\/td\u003e\n\u003ctd\u003eR404A, R507A, R448A, R449A, R134a and R22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit weight\u003c\/td\u003e\n\u003ctd\u003eApproximately 230–510 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit length\u003c\/td\u003e\n\u003ctd\u003eApproximately 2,752–4,651 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit width\u003c\/td\u003e\n\u003ctd\u003eApproximately 770–910 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit height\u003c\/td\u003e\n\u003ctd\u003eApproximately 990–1,100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJunction box\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFactory pressure test\u003c\/td\u003e\n\u003ctd\u003e28 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard casing\u003c\/td\u003e\n\u003ctd\u003ePowder-coated galvanized steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional casing\u003c\/td\u003e\n\u003ctd\u003eAluminium or stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eImportant Technical Notice\u003c\/h3\u003e\n\u003cp\u003eCooling capacity, airflow, dimensions, weight, heater power, electrical data and pipe connections vary by model and operating condition.\u003c\/p\u003e\n\u003cp\u003eThe final model must be selected according to the required cooling capacity, room temperature, evaporating temperature, refrigerant, local power supply and installation conditions.\u003c\/p\u003e\n\u003ch2\u003eSeries and Fin Spacing\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003cth\u003eFin Spacing\u003c\/th\u003e\n\u003cth\u003eGeneral Application\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eGUMDL\u003c\/td\u003e\n\u003ctd\u003e4.5 mm\u003c\/td\u003e\n\u003ctd\u003eHigher-temperature applications with relatively limited frost formation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGUMDD\u003c\/td\u003e\n\u003ctd\u003e6.0 mm\u003c\/td\u003e\n\u003ctd\u003eMedium- and low-temperature cold-storage applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGUMDJ\u003c\/td\u003e\n\u003ctd\u003e9.0 mm\u003c\/td\u003e\n\u003ctd\u003eLow-temperature and freezer applications with greater frost formation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eFinal fin-spacing selection should be based on room temperature, relative humidity, product load and defrost-cycle requirements.\u003c\/p\u003e\n\u003ch2\u003eModel Code Explanation\u003c\/h2\u003e\n\u003cp\u003eExample: \u003cstrong\u003eGUMDJ633H-E\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCode\u003c\/th\u003e\n\u003cth\u003eMeaning\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eGUM\u003c\/td\u003e\n\u003ctd\u003eGUM Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD\u003c\/td\u003e\n\u003ctd\u003eCeiling-mounted installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJ\u003c\/td\u003e\n\u003ctd\u003e9.0 mm fin spacing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e63\u003c\/td\u003e\n\u003ctd\u003e630 mm fan diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eThree fan motors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eH\u003c\/td\u003e\n\u003ctd\u003eCoil specification code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE\u003c\/td\u003e\n\u003ctd\u003eElectric defrost; the suffix may be omitted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eStandard Rating Conditions\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003cth\u003eInlet Air Temperature\u003c\/th\u003e\n\u003cth\u003eEvaporating Temperature\u003c\/th\u003e\n\u003cth\u003eRelative Humidity\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSC1\u003c\/td\u003e\n\u003ctd\u003e10°C\u003c\/td\u003e\n\u003ctd\u003e0°C\u003c\/td\u003e\n\u003ctd\u003e85%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSC2\u003c\/td\u003e\n\u003ctd\u003e0°C\u003c\/td\u003e\n\u003ctd\u003e−8°C\u003c\/td\u003e\n\u003ctd\u003e85%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSC3\u003c\/td\u003e\n\u003ctd\u003e−18°C\u003c\/td\u003e\n\u003ctd\u003e−25°C\u003c\/td\u003e\n\u003ctd\u003e95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSC4\u003c\/td\u003e\n\u003ctd\u003e−25°C\u003c\/td\u003e\n\u003ctd\u003e−31°C\u003c\/td\u003e\n\u003ctd\u003e95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSC5\u003c\/td\u003e\n\u003ctd\u003e−34°C\u003c\/td\u003e\n\u003ctd\u003e−40°C\u003c\/td\u003e\n\u003ctd\u003e95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eCooling-capacity values must always be compared under the same rating condition and refrigerant basis.\u003c\/p\u003e\n\u003ch2\u003eConstruction and Components\u003c\/h2\u003e\n\u003ch3\u003eCasing\u003c\/h3\u003e\n\u003cp\u003eThe standard casing is manufactured from powder-coated galvanized steel for corrosion resistance. Aluminium and stainless-steel casing materials are available for special installation environments.\u003c\/p\u003e\n\u003ch3\u003eHeat Exchanger\u003c\/h3\u003e\n\u003cp\u003eThe heat exchanger uses internally grooved tubes designed to improve refrigerant-side heat transfer. Aluminium end plates provide flexible tube support and help prevent direct contact between the copper tubes and steel components.\u003c\/p\u003e\n\u003ch3\u003eAluminium Fins\u003c\/h3\u003e\n\u003cp\u003eHydrophilic double-sine-wave aluminium fins are used to improve air-side heat transfer and optimise pressure drop. Fin spacings of 4.5 mm, 6.0 mm and 9.0 mm are available for different operating temperatures and frost conditions.\u003c\/p\u003e\n\u003ch3\u003eFans\u003c\/h3\u003e\n\u003cp\u003eLarge-diameter, four-pole external-rotor fans provide high static pressure and long air throw. Thermal protection is included, and EC energy-saving fan motors are available as an optional configuration.\u003c\/p\u003e\n\u003ch3\u003eElectric Defrost\u003c\/h3\u003e\n\u003cp\u003eStainless-steel electric heaters are evenly installed through the heat-exchanger fins and drain-pan area. This arrangement supports uniform defrosting and helps prevent residual ice in low-temperature applications.\u003c\/p\u003e\n\u003ch3\u003eDrain Pan\u003c\/h3\u003e\n\u003cp\u003eThe angled outer drain pan is designed to provide smooth condensate drainage. The inner drain-pan structure helps reduce air bypass, improve condensate discharge and enhance heat distribution during electric defrost.\u003c\/p\u003e\n\u003ch3\u003eElectrical Junction Box\u003c\/h3\u003e\n\u003cp\u003eAn IP65 waterproof junction box and waterproof cable connectors are used to support reliable electrical connections in cold and humid environments.\u003c\/p\u003e\n\u003ch2\u003eRefrigerant Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe GUM Series can be applied with the following refrigerants:\u003c\/p\u003e\n\u003cpre\u003e\u003ccode\u003eR404A\nR507A\nR448A\nR449A\nR134a\nR22\u003c\/code\u003e\u003c\/pre\u003e\n\u003cp\u003eActual cooling capacity must be corrected according to the selected refrigerant and operating condition.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLarge cold-storage warehouses\u003c\/li\u003e\n\u003cli\u003eFrozen-food storage rooms\u003c\/li\u003e\n\u003cli\u003eFood-processing facilities\u003c\/li\u003e\n\u003cli\u003eCold-chain logistics centres\u003c\/li\u003e\n\u003cli\u003eDistribution warehouses\u003c\/li\u003e\n\u003cli\u003eIndustrial freezer rooms\u003c\/li\u003e\n\u003cli\u003eHigh-ceiling cold rooms\u003c\/li\u003e\n\u003cli\u003eMedium-temperature cold storage\u003c\/li\u003e\n\u003cli\u003eLow-temperature freezer storage\u003c\/li\u003e\n\u003cli\u003eLarge industrial refrigeration systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eModel Selection Information\u003c\/h2\u003e\n\u003cpre\u003e\u003ccode\u003ePlease provide the following information before ordering:\n\n1. Cold-room dimensions\n2. Required room temperature\n3. Ambient temperature\n4. Product type\n5. Daily product loading quantity\n6. Required cooling capacity\n7. Refrigerant\n8. Evaporating temperature\n9. Local voltage, phase and frequency\n10. Maximum permitted unit dimensions\u003c\/code\u003e\u003c\/pre\u003e\n\u003ch2\u003eOrdering Notice\u003c\/h2\u003e\n\u003cpre\u003e\u003ccode\u003eAll models listed on this product page are supplied with electric defrost.\n\nPlease confirm the required model, refrigerant, operating temperature, cooling capacity and electrical power supply before placing an order.\n\nContact us if technical model-selection assistance is required.\u003c\/code\u003e\u003c\/pre\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Kaidi","offers":[{"title":"GUMDL632F – 4.5 mm Fin Spacing","offer_id":43895288692795,"sku":null,"price":2126.0,"currency_code":"USD","in_stock":true},{"title":"GUMDL632G – 4.5 mm Fin Spacing","offer_id":43895288725563,"sku":null,"price":2300.0,"currency_code":"USD","in_stock":true},{"title":"GUMDL632H – 4.5 mm Fin Spacing","offer_id":43895288758331,"sku":null,"price":2489.0,"currency_code":"USD","in_stock":true},{"title":"GUMDL633F – 4.5 mm Fin 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