Fujitsu Waterstage WS G140DC6 Series Maintenance Document page 75

Split system (Single phase and 3-phase type)
Heater
Line no. Programming line
5061 Electric immersion heater release
Electric immersion heater release

24h/day
The heater is continuously active regardless of time
programs.

DHW release
The heater is controlled according to "DHW release".

Time program 4/DHW
Time program 4/DHW of the local controller is taken
into account for the heater.
Information:
Switch-on will actually be in effect only if the heater is
able to operate according to the "heater operating
mode" setting.
Maintenance Document 1544-1
75