Functions And Specifications Of Ma And Me Remote Controllers - Mitsubishi Electric CITY MULTI PUHY-P108 Service Handbook

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 transmis-
sion 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, MA simple remote controller, and wireless 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.
*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
grouping changes.
Grouping (floor plan) has been set at the time of in-
stallation.
*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.
<System with MA remote controller>
Outdoor unit
group
MA remote controller
MA remote controller
Not required (required only by a sys-
tem with one outdoor unit)
Non-polarized 2-core cable
∗To perform a group operation,
daisy-chain the indoor units us-
ing non-polarized 2-core cables.
Connectable to any indoor unit in the
group
Each indoor unit can individually be
interlocked with a ventilation unit. (Set
up via remote controller in the group.)
MA remote controller wiring between
indoor units requires rewiring.
*1*2
M-NET transmission line
(indoor/outdoor transmission line)
group
Indoor unit
- 93 -
*1*2
M-NET (ME) remote controller
Required
Required
*4
Non-polarized 2-core cable
Connectable anywhere on the indoor-outdoor
transmission line
Each indoor unit can individually be interlocked
with a ventilation unit. (Set up via remote con-
troller.)
Either the indoor unit address and remote con-
troller 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 re-
mote controllers, 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 M-NET remote controllers>
Outdoor unit
group
M-NET remote controller
[ IV Remote Controller ]
*2*3
*1*2
M-NET transmission line
(indoor/outdoor transmission line)
group
Indoor unit