ALPHA AST-30-H 전기저장온수기 사용설명서
Electric Storage Water Heater USER MANUAL AST-30-H/AST-40-H/AST-50-H/ AST-60-H/AST-70-H/AST-80-H/ AST-90-H SAFETY PRECAUTION Installation and maintenance work shall only be performed by a qualified person, familiar with local code and regulation, and…