Fujitsu Super High Power Series Design & Technical Manual page 115

 Regulation extension kit (UTW-KREXD)
Terminal
X150
X152
X153
X154
X100
*: Input H33 can be applied to one of several functions. (For details, refer to "Input H33 function".)
Terminal
X10
X110
X112
4-3. Connections to the heat pump regulator (Accessories and Options)
Low voltage
1
2
3
Room thermostat or remote control for lower temperature circuit
B1
M
B2
H33
External input*
M
BX31
Flow sensor for lower temperature circuit
M
BX32
M
Not used
BX33
M
BX34
Swimming pool temperature sensor
M
Heat pump regulator
Main voltage
L
Earth Power supply
N
QX31
QX32
Mixing valve for 2
N
QX33
Circulation pump for lower temperature circuit
N
QX34
Not used
N
QX35
QX35
Distribution valve for swimming pool
(inverted)
N
Use
Use
nd
circuit or Pilot wire
- (03-71) -
4. Electrical connections