Compressors can be located on either side or in the back of the unit., and air vents are usually an indication of that location. Wherever there is an air vent, there needs to be a few inches of clearance, for proper air flow. This will affect the unit’s position in your establishment. Worktop refrigerators can come with or without a backsplash. The backsplash will increase cleaning speed and efficiency because it minimizes the amount of food that falls behind the unit.