1.Microprocessor-based temperature controller, temperature from -10℃ to -25℃,can be set freely, Digital temperature display. 2.Delayed start and safe stop interval between restart and being terminated 3.Audible/visual alarm for high or low temperature alarm,system failure alarm. 4.Power supply: 220V /50Hz 1 phase, can be changed as 220V 60HZ or 110V  50/60HZ Structure Design: 1.Chest type, Outer body is painted steel board, inside is aluminium panel. 2.Top door with key lock. 3.One unit basket made of steel wire are convenient to store articles 4.Four units Casters for easy handing Refrigeration System: Quick freezing switch to make fast cooling. Famous good quality compressor and Germany EBM fan motor Refrigerant as R134a, CFC free Certificate: ISO9001, ISO14001, ISO1348

Model	Capacity	External size (W*D*H) mm	Inside size (W*D*H)mm	Input power	Weight (N.t / G.t)
NB-YW110A	110 Liters	549*549*845	410*410*654	145W	30Kg/40kg
NB-YW166A	166 Liters	556*906*937	430*780*480	160W	45kg/55kg
NB-YW196A	196 Liters	556*1056*937	430*930*480	180W	50kg/60kg
NB-YW226A	226 Liters	556*1206*937	430*1080*480	207W	55kg/65kg
NB-YW358A	358 Liters	730*1204*968	530*1080*625	320W	80kg/90kg
NB-YW508A	508 Liters	730*1554*968	530*1400*685	375W	100kg/110kg

1. Indoor temperature: 5-32℃, relative humidity 80%/22℃. 2. The distance from the ground is >10cm. The altitude is below 2000m. 3. It takes 6 hours to decrease from +20℃ to -80℃. 4. Strong acid and corrosive samples should not be frozen. 5. Frequently check the sealing strip of the outer door. 6. Landing on all four feet is stable and level. 7. When there is a power failure prompt, press the stop beeping button. 8. The general refrigeration temperature is set at 60℃ 9. The power supply voltage of 220v (AC) must be stable, and the power supply current must be at least 15A (AC) or more. 10. In the event of a power failure, the power switch and battery switch at the back of the refrigerator must be turned off. When the normal power supply is restored, the power switch at the back of the refrigerator must be turned on, and then the battery switch will be turned on. 11. Note that heat dissipation is very important to the refrigerator. It is necessary to maintain indoor ventilation and a good heat dissipation environment, and the ambient temperature cannot exceed 30C. 12. In summer, adjust the set temperature to -70℃, and pay attention to the usual setting not too low. 13. Don't open the door too big when accessing the samples, and keep the access time as short as possible. 14. Note that the samples that are frequently accessed should be placed on the upper second layer, and the samples that need to be stored for a long time infrequently accessed should be placed on the lower second layer, so as to ensure that the air-conditioning is not excessively lost when the door is opened, and the temperature will not rise too fast. 15. Note that the filter must be cleaned once a month (first use a vacuum cleaner, rinse with water after suction, and finally dry and reset). The internal condenser must be vacuumed every two months to suck the dust on it. 16. Do not use force to open the door when the door is locked to avoid the door lock from being damaged. 17. To defrost, only cut off the power supply of the refrigerator and open the door. When the ice and frost begin to melt, a clean and absorbent cloth must be placed on each layer of the refrigerator to absorb and wipe the water (note that there will be a lot of water).