The lowest, guaranteed operating temperature covered under warranty is 5°C.
The lowest, guaranteed storage temperature covered under warranty is -20°C.
Unfortunately, we have no practical way of determining which hardware component is prone to failure if the unit was stored at a temperature colder than -20°C. The lowest temperature our temperature testing could achieve was -20°C, therefore the DL850 was evaluated under this condition.
Please refer to Section 6-12 of the DL850 User's Manual IMDL850-02EN for more information on storage and operating environment.