Fujitsu Super High Power Series Design & Technical Manual page 81

• With electrical utility lock
This setting relates to input EX1 (load-shedding or peak day clearing) and allows the electric
heaters to be locked as follows:
– Locked
The heat pump and all electric heaters are locked, both heat pump stages and the DHW tank
electric heater. Only the boiler backup, if installed, continues to operate.
– Released
The heat pump operates and all electric heaters are locked, both heat pump stages and the
DHW tank electric heater. The boiler backup, if installed, continues to operate.
3-8. Heat pump functions
- (03-37) -
3. Function table