Daikin FWW Series Technical Manual page 14

The standard controller board (W3) comes with a default setting for model selection.
Please select the model accordingly by using jumper.
System Model
2 Pipe M1 -
System Model 1
M2 -
Model 2
4 Pipe M3 -
System Model 3
M4 -
Model 4
NOTE :
i) Auto Fan Mode is only applicable in Model 3 only. (Cooling only with Boiler)
ii) Fan mode is not available in valveless control.
iii) Wired handset has an indoor room sensor. Avoid locating the wired handset at isolated places where room
temperature reading will be inaccurate.
10
Function
Cooling or Heating
FCU
FCU
Cooling or Heating with Auxiliary Heater
FCU
FCU
Cooling Only with Boiler
FCU
FCU
Cooling or Heating with Boiler
FCU
FCU
Application Information
Mini Chiller (Cooling Only)
Mini Chiller (Cooling / Heating)
Mini Chiller (Cooling Only)
Boiler
Mini Chiller (Cooling / Heating)
Boiler