[6-2 MA and ME Remote Controller Functions and Specifications ]
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HWE12050 GB
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
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.
Functions/specifications MA remote controller
*1*2
*1. MA remote controller refers to MA remote controller (PAR-31MAA, PAR-21MAA), MA simple remote controller, and wire-
less 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.
ME remote controller
*2*3
*3. ME remote controller refers to ME remote controller and ME simple remote controller.
Remote controller address settings Not required Required
Indoor/outdoor unit address set-
tings
Not required (required only by a system
with one outdoor unit)
*4
*4. Depending on the system configuration, some systems with one outdoor unit may require address settings.
Required
Wiring method Non-polarized 2-core cable
∗To perform a group operation, daisy-
chain the indoor units using non-polar-
ized 2-core cables.
Non-polarized 2-core cable
Remote controller connection Connectable to any indoor unit in the
group
Connectable anywhere on the indoor-out-
door transmission line
Interlock with the ventilation unit Each indoor unit can individually be in-
terlocked with a ventilation unit. (Set up
via remote controller in the group.)
Each indoor unit can individually be inter-
locked with a ventilation unit. (Set up via
remote controller.)
Changes to be made upon group-
ing change
MA remote controller wiring between in-
door units requires rewiring.
Either the indoor unit address and remote
controller address must both be changed,
or the registration information must be
changed via MELANS.
MA remote controller
*1*2
*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.
ME remote controller
*1*2
There is little likelihood of system expansion and
grouping changes.
Grouping (floor plan) has been set at the time of in-
stallation.
There is a likelihood of centralized installation of remote control-
lers, system expansion, and grouping changes.
Grouping (floor plan) has not been set at the time of installation.
To connect the remote controller directly to the OA processing
unit.
<System with MA remote controller> <System with ME remote controllers>
MA remote controller
Outdoor unit
Indoor unit
M-NET transmission line
(indoor/outdoor transmission line)
groupgroup
ME remote controller
Outdoor unit
Indoor unit
M-NET transmission line
(indoor/outdoor transmission line)
group group
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