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[6-2 MA and ME Remote Controller Functions and Specifications ]
6-2
MA and ME Remote Controller Functions and Specifications
There are two types of remote controllers: ME remote controller, which is connected on the indoor-outdoor transmission
line, and MA remote controller, which is connected to each indoor unit.
6-2-1
Function/Specification Comparison
Functions/specifications
Remote controller address settings Not required
Indoor/outdoor unit address set-
tings
Wiring method
Remote controller connection
Interlock with the ventilation unit
Changes to be made upon group-
ing change
*1. MA remote controller refers to MA remote controller (PAR-20MAU, PAR-21MAAU, PAR-30MAAU), Simple MA Remote
Controller, and wireless remote controller.
*2. Either the MA remote controller or the ME remote controller can be connected when a group operation of units in a sys-
tem with multiple outdoor units is conducted or when a system controller is connected.
*3. ME remote controller refers to ME remote controller and Simple ME Remote Controller.
*4. Depending on the system configuration, some systems with one outdoor unit may require address settings.
6-2-2
Local Remote Controller Selection Tips
MA remote controller and ME remote controller have different functions and characteristics. Choose the one that better suits
the requirements of a given system. Use the following criteria as a reference.
MA remote controller
There is little likelihood of system expansion and group-
ing changes.
Grouping (floor plan) has been set at the time of instal-
lation.
*1. ME remote controller and MA remote controller cannot both be connected to the same group of indoor units.
*2. A system controller must be connected to a system to which both MA remote controller and ME remote controller are con-
nected.
<System with MA remote controller>
Outdoor unit
BC controller
MA remote controller
HWE13080
MA remote controller
Not required (required only by a system
with one outdoor unit)
Non-polarized 2-core cable
∗To perform a group operation, daisy-
chain the indoor units using non-polar-
ized 2-core cables.
Connectable to any indoor unit in the
group
Each indoor unit can individually be in-
terlocked with a ventilation unit. (Set up
via remote controller in the group.)
MA remote controller wiring between in-
door units requires rewiring.
*1*2
M-NET transmission line
(indoor/outdoor transmission line)
group
group
Indoor unit
*1*2
Required
Required
*4
Non-polarized 2-core cable
Connectable anywhere on the indoor-out-
door transmission line
Each indoor unit can individually be inter-
locked with a ventilation unit. (Set up via
remote controller.)
Either the indoor unit address and remote
controller address must both be changed,
or the registration information must be
changed via MELANS.
ME remote controller
There is a likelihood of centralized installation of remote
controllers, system expansion, and grouping changes.
Grouping (floor plan) has not been set at the time of in-
stallation.
To connect the remote controller directly to the OA pro-
cessing unit.
<System with ME remote controllers>
Outdoor unit
BC controller
ME remote controller
- 150 -
*2*3
ME remote controller
*1*2
M-NET transmission line
(indoor/outdoor transmission line)
group
group
Indoor unit
GB
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Troubleshooting
Need help?
Do you have a question about the PURY-HP72 and is the answer not in the manual?
Questions and answers
what is the set up mode for recovery, and charging of sys?
Why can control my indoor unit with centralize control
You may not be able to control your Mitsubishi Electric PURY-HP72 indoor unit with centralized control for the following reasons:
1. The power jumper connector on the outdoor unit may not be correctly set. It should be connected to CN40 on only one outdoor unit.
2. The central control switch (SW5-1) on the control board of all outdoor units must be set to "ON."
3. Address settings may not be correctly configured. The main indoor unit should be assigned the smallest address (e.g., IC00), and correct port number settings are required.
4. If using a remote controller alone, an interlock setting from the remote controller is needed.
5. Both ME and MA remote controllers cannot be connected to the same indoor unit group.
6. System controller power issues may occur if the outdoor unit fan rotates due to external forces, causing the system controller to detect an error.
7. Improper wiring or incorrect voltage at TB7 may also prevent operation.
Check each of these conditions to ensure proper centralized control.
This answer is automatically generated
Why can’t control indoor unit with centralize control and stay the MA control set up can’t. Control the mode
The Mitsubishi Electric PURY-HP72 indoor unit cannot be controlled with centralized control and the mode control setup does not function due to the following reasons:
1. Central control is not possible if the indoor/outdoor transmission line is used, even if TB7 terminals are daisy-chained.
2. Shielded cables must be used, and the connection must only be made after confirming the voltage is below 20 VDC.
3. Improper connection of the transmission line for centralized control, such as not correctly daisy-chaining terminals M1 and M2 or not short-circuiting the earth and S terminals on TB7.
4. If a power supply unit is not connected to the centralized control line, the power jumper connector must be moved from CN41 to CN40 on one outdoor unit—if this is not done, mode control will not function.
5. Overlapped indoor unit addresses or noise interference on the remote controller lines can also prevent proper control.
6. Failure to set one MA remote controller to MAIN or exceeding its capacity can result in control failure.
All these factors must be correctly configured for centralized and mode control to function properly.
This answer is automatically generated