Installation Guide

60
Water Heater 1
Water Heater 2
Water Heaters 3-6
Remote Controller
External Remote
Terminal Block*
External Remote
Terminal Block*
External Remote
Terminal Block*
No.6
90 90
90
90
89
102
PCB
Power
PCB
B5 B5
System Controller
No.5
No.4
No.3
No.2
Remote Controller Cord
Remote Controller Cord
Remote Controller Cord
PCB
Power
PCB
PCB
Power
PCB
Connect these
to the
External
Remote
Te
rminal Block in each
Wa
ter Heater.
* The External Remote Terminal
Block location may differ
depending on the Water Heater.
17.1.4 Multi-System Wiring (Using SC-401-6M)
Installation of the Multi-System