9.2.1 IST circuit diagram ......................................................................................................................................... 61
9.2.2 External refrigeration system (IST-3075/IST-4075) ........................................................................... 61
9.2.3 Internal refrigeration (IST-3075R/IST-4075R) ...................................................................................... 61
9.3 Disposing of products .......................................................................................................................................... 62
9.4 Warranty ................................................................................................................................................................... 62
9.4.1 Terms of Warranty Service .......................................................................................................................... 62
9.4.2 Warranty exception ......................................................................................................................................... 63
9.4.3 Service and technical advice ...................................................................................................................... 63