Exactly as described, the full user-manual (145 pages). Perfect.
Text excerpt from page 19 (click to view)
Power
interruptions
If electricity goes off, call the power company. Ask how long power will be off. 1. If service will be interrupted 24 hours or less, keep both doors closed. This helps food stay frozen. 2. If service will be interrupted longer than 24 hours: (a) Remove all frozen food and store in a frozen food locker. OR (b) Place 2 Ibs. (907 g) of dry ice in freezer for every cubic foot of freezer space. This will keep food frozen for 2 to 4 days. Wear gloves to protect your hands from dry ice burns. OR (c) If neither a food locker nor dry ice is available, use or can perishable food at once. 3. A full freezer stays cold longer than a partly filled one. A freezer full of meat stays cold longer than a freezer full of baked goods. If food contains ice crystals, it may be safely refrozen, although the quality and flavor may be affected. If the condition of the food is poor, or if you feel it is unsafe, dispose of it.