Gefriergerät Stirling Ultracold SU780XLE

Stirling Ultracold SU780XLE upright ultra-low temperature freezer with 27.5 cu.ft. (780 liter) storage capacity. The cabinet uses free-piston Stirling engine cooling rather than a conventional cascade compressor system and is ENERGY STAR labeled, as shown by the badge on the door in photo 1. The nameplate identifies it as model SU780XLE, serial number 19700-11010, produced in 2019 by Global Cooling Inc. Per the data plate in photo 5: interior volume 27.5 cu.ft. (780 L), net weight 625 lbs (283 kg), exterior dimensions 78.5 in. H x 34.2 in. front-to-back x 36 in. W (1994 x 869 x 914 mm), input 120-240 VAC, 50/60 Hz, maximum current 10 amps at 120 VAC / 5 amps at 240 VAC, maximum input power 1200 watts, ethane refrigerant charge of 3.2 oz (90 g). The freezer is rated to -86 degrees C and is adjustable in 1 degree C increments down from -20 degrees C. The unit has a color touchscreen controller mounted in the green upper housing; at the time of the site visit the display was lit and reading -76 degrees C (photos 1 and 2). The insulated outer door opens to three individually latched inner compartment doors with green handles (photo 3), and the interior is fitted with shelving; photo 4 shows the chamber in service with frost accumulation and inventory racks/boxes on the shelves. Exterior labels include biohazard and facility monitoring stickers applied by the user. The freezer came out of a biopharmaceutical facility and was photographed powered on and at temperature. It stands on the floor on casters and is not hardwired, so it can be moved with a pallet jack or cart. No defrosting, cleaning or contents removal is reflected in the photos.