Stirling Ultracold SU105UE Ultra-Low Undercounter Freezer

Features The Stirling Ultracold SU105UE Ultra-Low Undercounter Freezer is a compact ultra-low temperature freezer that is ideal for personal storage and situations where larger volume ULT freezers might otherwise remain half empty. The SU105UE delivers full performance ultra-low storage for undercounter, benchtop or stacked installation. These undercounter freezers feature a 105L (3.7 cu. ft.) cabinet that delivers stable, uniform -20°C to -86°C storage at a fraction of the operating cost of conventional cascade refrigeration systems. The SU105UE combines the performance of a unique free-piston Stirling engine with an efficient, thin-wall, non-CFC urethane foam and vacuum insulated cabinet. This permits high-performance, ultra-low temperature storage capacity in an undercounter, benchtop, or stacked cabinet configuration.

The Stirling integral control, alarm, and monitoring system includes an intuitive graphic user interface to display operating temperature, reserve cooling capacity, status functions, and performance metrics for field troubleshooting. Secure touchpad inputs permit access to and programming for all control functions and alarm setpoints. Using 100% natural refrigerants, the Stirling Ultracold SU105UE Undercounter Freezer stores more samples in a smaller footprint than comparable models.

Stirling Ultracold SU105UE Ultra-Low Undercounter Freezer Specifications

Temperature Range	-20°C to -86°C, adjustable in 1°C increments
Volume	105L (3.7 cu. ft.)
Cooling Engine	Helium charged free-piston Stirling engine with continuous modulation
Heat Transport System	Gravity driven thermosiphon
Refrigerant	R-170 (Ethane) 30-33 grams
Evaporator	Cold wall (inner liner)
Heat Rejection	Finned heat exchanger with forced air cooling Air inlet: above freezer door, below mechanical compartment Air outlet: underneath or rear right corner bottom
Defrost Method	Manual
Controller Type	Microprocessor with touchscreen input and display
Warm and Cold Alarms	Fully adjustable by user
Temperature Log	30 days available graphically
Battery Back-up	12-hour control battery back-up for touchscreen
Energy Use	4 kWh/day at -80°C
Pull Down from 25°C Ambient	9 hours to -80°C (empty cabinet)
Recovery from Door Opening	40 minutes to -80°C
Warm-up Profile	2 hours to -60°C at -80°C (empty cabinet) 5.2 hours to -40°C at -80°C (empty cabinet)
Heat Dissipation	563 BTU/hr (load to HVAC) at -80°C (empty cabinet)
Interior Dimensions (H x D x W)	21 x 17 x 18 in. (53.3 x 43.2 x 45.7 cm)
Exterior Dimensions (H x D x W)	34 x 28 x 27 in. (86.4 x 71.1 x 68.6 cm)
Weight	220 lb. (100 kg.)
Electrical Requirements	100 - 240V, 50/60Hz, 300W