Saturate the evaporator coil with Viper Evap+. Restart the equipment as soon as possible and Viper Evap+ will self-rinse via condensation and will keep cleaning for up to 72 hours. Viper Evap+ is the best performing non-rinsing evaporator coil cleaner using slow release enzymes in a synthetic detergent base. It requires no dilution for application. Use a remote sprayer to apply to the coil then switch the unit to full operation and let the enzymes do the work. It is non-toxic, non-irritating, odourless, neutral pH, and biodegradable. Viper Evap+ is food industry compliant with an NSF certification and is safe to use in hospital, hotel, food service and food manufacturing applications.