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[ IV Remote Controller ]
IV Remote Controller
[1] Functions and Specifications of MA and ME Remote Controllers
There are two types of remote controllers: M-NET (ME) remote controller, which is connected on the indoor-outdoor
transmission line, and MA remote controller, which is connected to each indoor unit.
1. Comparison of functions and specifications between MA and ME remote controllers
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-20MAA, PAR-21MAA), MA simple remote controller, and wire-
less remote controller.
*2. Either the MA remote controller or the M-NET remote controller can be connected when a group operation of units in a
system with multiple outdoor units is conducted or when a system controller is connected.
*3. M-NET remote controller refers to ME remote controller and ME simple remote controller.
*4. Depending on the system configuration, some systems with one outdoor unit may require address settings.
2. Remote controller selection criteria
MA remote controller and M-NET 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. M-NET 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 M-NET remote controller are
connected.
Outdoor unit
BC controller
MA remote controller
HWE07130
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
M-NET (ME) remote controller
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.
M-NET (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.
Outdoor unit
BC controller
M-NET remote controller
- 75 -
*2*3
*1*2
M-NET transmission line
(indoor/outdoor transmission line)
group
group
Indoor unit
GB
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