Mitsubishi P336 User Manual

Page of 334
IV  Remote Controller ] 
- 69 -
HWE09120
GB
IV Remote Controller
[1] Functions and Specifications of MA and ME Remote Controllers
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.
1. Comparison 
of 
functions 
and specifications between MA and ME remote controllers
2.  Remote controller selection criteria
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-20MAU, 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
Remote controller address settings
Not required
Required
Indoor/outdoor unit address set-
tings
Not required (required only by a system 
with one outdoor unit)
*3
*3. 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
ME  remote controller
*1*2
ŒThere is little likelihood of system expansion and group-
ing changes.
ŒGrouping (floor plan) has been set at the time of instal-
lation.
ŒThere is a likelihood of centralized installation of remote 
controllers, system expansion, and grouping changes.
ŒGrouping (floor plan) has not been set at the time of in-
stallation.
ŒTo connect the remote controller directly to the OA pro-
cessing unit.
*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>
<System with ME remote controllers>
MA remote controller 
Outdoor unit 
Indoor unit 
M-NET transmission line 
(indoor/outdoor transmission line) 
group
group
ME remote controller
Outdoor unit 
Indoor unit 
M-NET transmission line
(indoor/outdoor transmission line)
group
group