Operating environment Place the product on a sturdy, level surface in a well-ventilated area that meets the following environmental requirements: temperature: 15 ° to 32.5° C (59 ° to 90.5 ° F) humidity: 10% to 80% relative humidity (no condensation) away from direct sunlight, open flames, and ammonia fumes sufficient space around the product to allow for proper access and ventilation 74 cm (29 in) Figure 4. Dimensions of product 30 Chapter 2 - Operation EN 53 cm (21 in) 81 cm (32 in) 81 cm (32 in)