Transporting a new fridge can be a bit tricky, but in general, it is not recommended to lay down a new fridge during transport. The reason for this is that refrigerators use a type of refrigerant fluid and oil in their cooling system, which needs to settle properly before the appliance is turned on. When a fridge is laid down, there is a risk that these fluids can flow into areas where they shouldn't be, potentially causing damage to the cooling system.
If you must transport a new fridge, it's best to keep it in an upright position. This helps prevent any potential damage to the cooling system and ensures that the fridge will work properly once it's set up in its new location. If it's absolutely necessary to lay the fridge down temporarily, do so for the shortest amount of time possible, and be sure to let it stand upright for at least the same amount of time before turning it on.
Always consult the manufacturer's guidelines or user manual for specific instructions on transporting your particular fridge model. If you're unsure about how to safely transport your new fridge, consider hiring professional movers or seeking assistance from the retailer you purchased it from. They can help ensure that your fridge is transported correctly and remains in good working condition.