Mitsubishi Electric PUHZ-W50VHA Technical Manual page 26

System structure(2)
Outdoor unit capacity switch
4-20mA
Capacity switch of outdoor
unit according to the signal
of 4-20mA
1-5V
Capacity switch of outdoor
unit according to the signal
of 1-5V
0-10V
Capacity switch of outdoor
unit according to the signal
of 0-10V
System diagram
Intake temp.
Liquid pipe temp.
Local unit
Interface controller
Local controller 4-20mA
Power line
Intake temp.
Liquid pipe temp.
Local unit Interface controller
Local controller 4-20mA
Intake temp.
Liquid pipe temp.
Local unit Interface controller
Local controller
1-5V
Power line
Intake temp.
Liquid pipe temp.
Local unit
Interface controller
Local controller
1-5V
Intake temp.
Liquid pipe temp.
Local unit
Interface controller
Local controller 0-10V
Power line
Intake temp.
Liquid pipe temp.
Local unit Interface controller
Local controller 0-10V
A transmission line/Power line
Power line
Outdoor unit
A transmission line/Power line
Power line
Outdoor unit
A transmission line/Power line
Power line
Outdoor unit
A transmission line/Power line
Power line
Outdoor unit
A transmission line/Power line
Power line
Outdoor unit
A transmission line/Power line
Power line
Outdoor unit
26
Power supply specifications
Power supplied from outdoor unit
Power supply for interface
controller is supplied from the
outdoor unit.
Refer to 3.1.
Separate interface/outdoor unit
power supplies
Power supply for interface
controller and power supply for
outdoor unit are supplied from the
different source.
(Common power source for local
unit and interface controller)
Refer to 3.2.
Power supplied from outdoor unit
Power supply for interface
controller is supplied from the
outdoor unit.
Refer to 3.1.
Separate interface/outdoor unit
power supplies
Power supply for interface
controller and power supply for
outdoor unit are supplied from the
different source.
(Common power source for local
unit and interface controller)
Refer to 3.2.
Power supplied from outdoor unit
Power supply for interface
controller is supplied from the
outdoor unit.
Refer to 3.1.
Separate interface/outdoor unit
power supplies
Power supply for interface
controller and power supply for
outdoor unit are supplied from the
different source.
(Common power source for local
unit and interface controller)
Refer to 3.2.