Fujitsu WSYA050ML3 Design & Technical Manual page 105

• Pre-settings
Only pre-setting 1 to 4 are used among 9 availabiles.
• Heating circuit/Cooling circuit
– Heating circuit 1: Using this setting, heating circuit 1 can be switched on and off.
– Cooling circuit 1:
• Off
The cooling circuit is deactivated.
• 4-pipe system
Not compatible with this system. This setting relates to passive cooling.
• 2-pipe system
Activates the heat pump cooling mode. However, the cooling kit must have been previously
connected.
WARNING
If the cooling kit has not been connected and the cooling mode is activated the heat pump
will behave abnormally and might cause some unwanted discomfort.
NOTE: Switching on the cooling mode causes the menu "Cooling circuit 1" to appear.
– Heating circuit 2: Using this setting, heating circuit 2 can be switched on and off.
• DHW
– No charging request:
No DHW charging via Q3
– Charging pump:
DHW charging is effected with a pump connected to terminal Q3.
– Diverting valve:
DHW charging is effected with a diverting valve connected to terminal Q3.
3-13. Installation configuration functions
Line
5700 Pre-setting
Line
5710 Heating circuit 1
Cooling circuit 1
•
5711
•
•
5715 Heating circuit 2
Line
5731 DHW controlling element Q3
Function
Function
Off
4-pipe system
2-pipe system
Function
- (03-47) -
3. Function table