6Safety PrecautionsChapter 3. – Safety RequirementsWARNINGTo avoid product damage, personal injury, or even possible death, carefully read, understand, andfollow all the instructions in the Installation and Owner’s Guide before installation, operation andservice the Water Heater.Noritz cannot anticipate every circumstance that might involve a potential hazard. Therefore, allpossible incidents are not included in our warnings. Proper installation, operation, and service areyour responsibility.You must make sure that the operation and settings of the Water Heater are safe for you and forothers.This manual provides Safety Symbols. When the user fails to adhere to the following requirement, it will cause death, serious damages,and a great property loss.For safety symbols, ‘DANGER’, ‘WARNING’, ‘CAUTION’ are indicated and the definitions for these terms are as follow:Indicates an imminently hazardous situation which, if not avoided, will result in death or seriousinjury. This signal word is limited to the most extreme situations.Indicates a potentially hazardous situation which, if not avoided, could result in death orserious injury.Indicates a potentially hazardous situation which, if not avoided, may result in minor ormoderate injury. It is also used to alert against unsafe practices and hazards involving onlyproperty damage.3-1. Safety PrecautionsDANGERWARNINGCAUTION