GlobalTowne carries all the Bosch PCB control boards and also the new Logic PCB Board for the Bosch Tronic 6000C WH17 & WH27. The Logic PCB boards are the main PCB control board for the whole unit. The Logic PCB boards tell the unit which element to heat up and how many depending on the amount of water flow. Below are the newest Bosch electric tankless water heater models and the part numbers for the Logic PCB boards.
Bosch Tronic 6000C WH17 (17KW)
Logic PCB Board: #8738710921
Bosch Tronic 6000C WH27 (27KW)
Logic PCB Board: #8738710922
Please call GlobalTowne at 888-726-9752 for further questions or to place an order.