System Outline; System Structure - Mitsubishi Electric PUHZ-W50VHA Technical Manual

1. System outline

With PAC-IF011B-E, local units can be connected with the outdoor units manufactured by MITSUBISHI ELECTRIC.
The commands, such as Remote switch, Varistor, 4-20mA/1-5V/0-10V and etc., allow the inverter outdoor unit to operate, to
stop and to switch capacity.
By outputting the operation state, the interface can be connected with the local unit.Also, the interface can be connected with
wired remote controller for maintenance so that the maintenance information is obtained.
Only the outdoor units with self-controlled S/W are connectable.

2. System structure

System structure(1)
Outdoor unit capacity switch
Remote switch
Capacity switch of outdoor
unit according to the remote
switch
When auto stop being set,
the difference between room
temperature and set
temperature of interface,
and the pipe temperature
switch the capacity of
outdoor unit automatically.
Wired remote controller
(Auto step mode only)
The difference between
room temperature and set
temperature of wired remote
controller, and the pipe
temperature switch the
capacity of outdoor unit
automatically.
As with the remote controller
for air conditioner, the
interface performs ON/OFF
operation, and changes
operation mode (cooling,
heating ,fan) and set
temperature.
Adjustable resistor(0-10kΩ)
Capacity switch of outdoor
unit according to the
adjustable resistor
System diagram
Intake temp.
Liquid pipe temp.
Local unit Interface controller
Local controller Remote switch
Power line
Intake temp.
Liquid pipe temp.
Local unit
Interface controller
Local controller Remote switch
Intake temp.
Liquid pipe temp.
Local unit Interface controller
Wired
PAR-21MAA
remote controller
Power line
Intake temp.
Liquid pipe temp.
Local unit Interface controller
Wired
PAR-21MAA
remote controller
Intake temp.
Liquid pipe temp.
Local unit
Interface controller
Local controller Adjustable resistor
Power line
Intake temp.
Liquid pipe temp.
Local unit
Interface controller
Local controller Adjustable resistor
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
24
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.