Mitsubishi Electric PAR-31MAA Installation Manual
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This installation manual describes how to install the MA Remote Controller for use with Mitsubishi Building Air Conditioning System, direct
expansion type CITY MULTI air conditioner indoor units (-A type and later), and Mitsubishi Mr. SLIM packaged air conditioners.
Please be sure to read this installation manual and the files on the CD-ROM that is supplied with the Remote Controller before proceeding
with the installation. Failure to follow the instructions may result in equipment damage.
For information not contained in this booklet, please refer to the files on the CD-ROM that is supplied with the Remote Controller.
If the files are not readable, please contact your dealer.
For information on how to wire and install the air conditioning units, refer to the installation manual.
After the installation, hand over this manual to users.
1. Safety Precautions
Thoroughly read the following safety precautions prior to installation.
Observe these precautions carefully to ensure safety.
After reading this manual, pass it on to the end user to retain for future reference.
Keep this manual for future reference and refer to it as necessary. This manual should be made available to those who repair or relocate
the controller. Make sure that the manual is passed on to any future users.
WARNING
CAUTION
WARNING
Indicates a risk of death or serious injury.
CAUTION
Indicates a risk of serious injury or structural damage.
General precautions
WT06695X01_1
GB
CITY MULTI Control System
and Mitsubishi Mr. SLIM Air Conditioners
MA Remote Controller PAR-31MAA
Installation Manual
For distribution to dealers and contractors
All electric work must be performed by qualified personnel.
Do not install the unit in a place where large amounts of oil, steam,
organic solvents, or corrosive gases, such as sulfuric gas, are present
or where acidic/alkaline sol utions or sprays are used frequently. These
substances can compromise the performance of the unit or cause
certain components of the unit to corrode, which can result in electric
shock, malfunctions, smoke, or fire.
To reduce the risk of shorting, current leakage, electric shock,
malfunctions, smoke, or fire, do not wash the controller with water
or any other liquid.
To reduce the risk of electric shock, malfunctions, smoke or fire, do
not operate the switches/buttons or touch other electrical parts with
wet hands.
To reduce the risk of injury or electric shock, before spraying a
chemical around the controller, stop the operation and cover the
controller.
To reduce the risk of injury or electric shock, stop the operation and
switch off the power supply before cleaning, maintaining, or inspecting
the controller.
Properly install all required covers to keep moisture and dust out of the
controller. Dust accumulation and water can cause electric shock,
smoke, or fire.
To reduce the risk of injury, keep children away while installing,
inspecting, or repairing the controller.
To reduce the risk of fire or explosion, do not place flammable
materials or use flammable sprays around the controller.
To reduce the risk of damage to the controller, do not directly spray
insecticide or other flammable sprays on the controller.
To reduce the risk of electric shock or malfunctions, do not touch
the touch panel, switches, or buttons with a pointy or sharp object.
To reduce the risk of injury and electric shock, avoid contact with
sharp edges of certain parts.
To avoid injury from broken glass, do not apply excessive force on the
glass parts.
To reduce the risk of injury, wear protective gear when working on the
controller.
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WARNING
CAUTION
WARNING
CAUTION
WARNING
CAUTION
Precautions during installation
Precautions during wiring
Precautions for moving or repairing the controller
Additional precautions
Do not install the controller where there is a risk of leaking flammable
gas. If flammable gas accumulates around the controller, it may ignite
and cause a fire or explosion.
Properly dispose of the packing materials. Plastic bags pose
suffocation hazard to children.
Take appropriate safety measures against earthquakes to prevent
the controller from causing injury.
To prevent injury, install the controller on a flat surface strong
enough to support its weight.
To reduce the risk of shorting, current leakage, electric shock,
malfunctions, smoke, or fire, do not install the controller in a place
exposed to water or in a condensing environment.
Controller must be installed by qualified personnel according to the
instructions detailed in the Installation Manual.
Improper installation may result in electric shock or fire.
When attaching the cover and the top casing to the bottom casing,
push it until it they click into place. If they are not properly locked
into place, they may fall, causing personal injury, controller
damage, or malfunctions.
To reduce the risk of damage to the controller, malfunctions, smoke, or
fire, do not connect the power cable to the signal terminal block.
Properly secure the cables in place and provide adequate slack in
the cables so as not to stress the terminals.Improperly connected
cables may break, overheat, and cause smoke or fire.
To reduce the risk of injury or electric shock, switch off the main
power before performing electrical work.
All electric work must be performed by a qualified electrician
according to the local regulations, standards, and the instructions
detailed in the Installation Manual. Capacity shortage to the power
supply circuit or improper installation may result in malfunction,
electric shock, smoke, or fire.
To reduce the risk of current leakage, overheating, smoke, or fire,
use properly rated cables with adequate current carrying capacity.
To reduce the risk of electric shock, shorting, or malfunctions, keep
wire pieces and sheath shavings out of the terminal block.
To reduce the risk of shorting, current leakage, electric shock, or
malfunctions, keep the cables out of contact with controller edges.
To reduce the risk of electric shock, malfunctions, or fire, seal the
gap between the cables and cable access holes with putty.
The controller should be repaired or moved only by qualified
personnel. Do not disassemble or modify the controller.
Improper installation or repair may cause injury, electric shock, or fire.
To reduce the risk of shorting, electric shock, fire, or malfunction,
do not touch the circuit board with tools or with your hands, and do
not allow dust to accumulate on the circuit board.
To avoid damage to the controller, use appropriate tools to install,
inspect, or repair the controller.
This controller is designed for exclusive use with the Building
Management System by Mitsubishi Electric. The use of this controller
for with other systems or for other purposes may cause malfunctions.
Take appropriate measures against electrical noise interference
when installing the air conditioners in hospitals or facilities with
radio communication capabilities. Inverter, high-frequency medical,
or wireless communication equipment as well as power generators
may cause the air conditioning system to malfunction. Air
conditioning system may also adversely affect the operation of
these types of equipment by creating electrical noise.
To avoid malfunctions, do not bundle power cables and signal
cables together, or place them in the same metallic conduit.
To prevent malfunctions, do not remove the protective film or the
circuit board from the casing.
To avoid damage to the controller, do not overtighten the screws.
Use a flat-head screwdriver with a blade width of 4-7 mm (5/32-9/
32 inch). The use of a screwdriver with a narrower or wider blade
tip may damage the controller casing.
To prevent damage to the controller casing, do not force the driver
to turn with its tip inserted in the slot.
To avoid discoloration, do not use benzene, thinner, or chemical
rag to clean the controller. To clean the controller, wipe with a soft
cloth soaked in water with mild detergent, wipe off the detergent
with a wet cloth, and wipe off water with a dry cloth.
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2. System Requirements
Your computer must meet the following requirements to run Manual Navigation Software.
[PC] PC/AT compatible
[CPU] Core2 Duo 1.66 GHz or faster (Core2 Duo 1.86 GHz or faster recommended)
Pentium D 1.7 GHz or faster (Pentium D 3.0 GHz or faster recommended)
Pentium M 1.7 GHz or faster (Pentium M 2.0 GHz or faster recommended)
Pentium 4 2.4 GHz or faster (Pentium 4 2.8 GHz or faster recommended)
* Core2 Duo or faster processor is required to run Manual Navigation Software on Windows Vista.
[RAM] Windows Vista: 1 GB minimum (2 GB or more recommended)
Windows XP: 512 MB minimum (1 GB or more recommended)
[HDD space] 1GB minimum (available space)
* Windows Vista: Available space in the drive that has the Document folder
* Windows XP: Available space in the drive that has the My Document folder
[Resolution] SVGA 800 × 600 or greater
[OS] Windows Vista Ultimate/Business/Home Basic Service Pack1 (Business version recommended)
Windows XP Professional/Home Edition Service Pack2 or Service Pack3 (Professional version recommended)
[Required software] Adobe Reader 8.1.3 or later
Adobe Acrobat 8.1.3 or later
* Software to view PDF files
Windows, Windows XP, and Windows Vista are registered trademarks of Microsoft Corporation.
Adobe Reader and Adobe Acrobat are registered trademarks of Adobe Systems Incorporated.
Core2 Duo and Pentium are registered trademarks of Intel Corporation.
3. Component names and supplied parts
The following parts are included in the box.
WARNING
The CD-ROM that is supplied with the Remote Controller can only be played on a CD-drive or a DVD-drive.
Do not attempt to play this CD-ROM on an audio CD player as this may damage your ears and/or speakers.
*4 The front cover (*1) is already installed on the top case (*2) at factory
shipment.
*5 Remote controller cable is not included.
To avoid damage to the controller, provide protection against static
electricity.
Do not use solderless terminals to connect cables to the terminal
block.
Solderless terminals may come in contact with the circuit board and
cause malfunctions or damage the controller cover.
To avoid damage to the controller, do not make holes on the
controller cover.
To avoid deformation and malfunction, do not install the remote
controller in direct sunlight or where the ambient temperature may
exceed 40ºC (104ºF) or drop below 0ºC (32ºF).
Do not install the controller on the control panel door.
Vibrations or shocks to the controller may damage the controller or
cause the controller to fall.
Hold the cables in place with clamps to prevent undue force from
being applied to the terminal block and causing cable breakage.
To prevent cable breakage and malfunctions, do not hang the top
controller casing hang by the cable.
Parts name Qty. Appearance
Remote controller (front cover) 1 Right figure *1
Remote controller (top case) 1 Right figure *2
Remote controller (bottom case) 1 Right figure *3
Roundhead cross slot screws M4×30 2
Wood screw 4.1×16
(for direct wall installation)
2
Installation Manual (this manual) 1
Simple Operation Manual 1
CD-ROM
(Instruction Book and Installation Manual)
1
*4
Bottom case *3
Top case *2
Front cover *1
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4. Field-supplied parts/Required tools
(1) Field-supplied parts
The following parts are field-supplied parts.
(2) Field-supplied tools
Flat-tip screwdriver (Width: 4-7 mm (5/32-9/32 inch))
Knife or Nipper
Miscellaneous tools
5. Selecting an installation site
This remote controller is for the wall installation. It can be installed either in the switch box or directly on the wall. When performing direct
wall installation, wires can be thread through either back or top of the remote controller.
(1) Selecting an installation site
Install the remote controller (switch box) on the site where the following conditions are met.
(a) For connection to the indoor unit with an Auto descending panel, a place where people can check the Auto descending panel
operation of the indoor unit while they are operating the remote controller (Refer to the indoor unit Instructions Book for how to
operate Auto descending panel.)
(b) A flat surface
(c) A place where the remote controller can measure the accurate indoor temperature
Sensors to monitor indoor temperature are on the indoor unit and on the remote controller. When the room temperature is
monitored with the sensor on the remote controller, the main remote controller monitors the room temperature. When using the
sensor on the remote controller, follow the instructions below.
To monitor the accurate indoor temperature, install the remote controller away from direct sunlight, heat sources, and the supply
air outlet of the air conditioner.
Install the remote controller in a location that allows the sensor to measure the representative room temperature.
Install the remote controller where no wires are routed around the temperature sensor on the controller.
(If wires are routed, the sensor cannot measure accurate indoor temperature.)
Parts name Qty. Notes
Double switch box 1
Not required for direct wall installationThin metal conduit Necessary
Lock nut and bushing Necessary
Cable cover Necessary Required for routing remote controller cable along a wall
Putty Reasonable
Molly anchor Necessary
Remote controller cable
(Use a 0.3 mm² (AWG22) 2-core sheathed cable.)
Necessary
(2) Installation space
Leave a space around the remote controller as shown in the figure at right, regardless of
whether the controller is installed in the switch box or directly on the wall. Removing the
remote controller will not be easy with insufficient space.
Also, leave an operating space in front of the remote controller.
Do not install the controller in a place where the difference
between the remote controller surface temperature and the actual
room temperature will be great.
If the temperature difference is too high, room temperature may
not be adequately controlled.
To reduce the risk of shorting, current leakage, electric shock,
malfunctions, smoke, or fire, do not install the controller in a place
exposed to water or in a condensing environment.
To avoid deformation and malfunction, do not install the remote
controller in direct sunlight or where the ambient temperature may
exceed 40ºC (104ºF) or drop below 0ºC (32ºF).
To reduce the risk of malfunctions and damage to the controller,
avoid installing the remote controller on an electrically conductive
surface, such as an unpainted metal sheet.
Important
30
(1-3/16)
30
(1-3/16)
30 (1-3/16)
120 (4-3/4)
External dimensions of
remote controller
Temperature
sensor
unit: mm(in)
Minimum required space
around the remote
controller
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6. Installation/Wiring work
4 Connect the remote controller cable to the terminal block on the bottom case.
Peel off 6 mm of the remote controller cable sheath as shown in the figure below, and thread the cable from behind the bottom
case. Thread the cable to the front of the bottom case so that the peeled part of the cable cannot be seen behind the bottom
case. Connect the remote controller cable to the terminal block on the bottom case.
(1) Installation work
Controller can be installed either in the switch box or directly on the wall. Perform
the installation properly according to the method.
1 Drill a hole in the wall.
■ Installation using a switch box
Drill a hole in the wall, and install the switch box on the wall.
Connect the switch box to the conduit tube.
■ Direct wall installation
Drill a hole in the wall, and thread the cable through it.
2 Seal the cable access hole with putty.
■ Installation using a switch box
Seal the remote controller cable access hole at the connection of switch
box and conduit tube with putty.
3 Prepare the bottom case of the remote controller.
■ Direct wall installation
Seal the hole through which the cable is threaded with putty.
To reduce the risk of electric shock, malfunctions, or fire, seal the
gap between the cables and cable access holes with putty.
Wall
Conduit
tube
Locknut
Switch box
Seal the gap
with putty.
Remote
controller cable
Bushing
Bottom case
Front cover and top case
10 (13/32)
6 (1/4)
unit: mm(in)
Sheath
Thread the sheath part
of the cable to the front.
Thread the cable.
Front
Back
2-core wire must not
be seen on the back.
Connect the cable.
(non-polarized)
Connect the cable
so that the cable
sheath is not
pinched.
To reduce the risk of electric shock, shorting, or malfunctions, keep
wire pieces and sheath shavings out of the terminal block.
Important
Do not use solderless terminals to connect cables to the terminal
block.
Solderless terminals may come in contact with the circuit board and
cause malfunctions or damage the controller cover.
Seal the gap with putty.
Route the cable behind
the remote controller.
Remote controller
cable
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