Mitsubishi Electric PAR-31MAA User manual

CITY MULTI Control System
and Mitsubishi Mr. Slim Air Conditioners
MA Remote Controller PAR-31MAA
Simple Operation Manual
Prior to use, thoroughly read the instructions in this manual to use the product correctly.
Retain for future reference.
Make sure that this manual, CD-ROM, and the Installation Manual are passed on to any
future users.
To ensure safety and proper operation of the remote controller, the remote controller should
only be installed by qualified personnel.

2
WARNING
• Thoroughly read the following safety precautions before using the unit.
• Observe these precautions carefully to ensure safety.
CAUTION
Indicates a risk of death or serious injury.
Indicates a risk of serious injury or structural damage.
WARNING
Safety precautions
• 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.
• For information not contained in this booklet, please refer to the Instruction Book on the CD-ROM that is
supplied with the Remote Controller.
General precautions
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 shorting, current leakage,
electric shock, malfunctions, smoke, or fire, do not
wash the controller with water or any other liquid.
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 solutions 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.
When disinfecting the unit using alcohol, ventilate
the room adequately. The fumes of the alcohol
around the unit may cause a fire or explosion when
the unit is turned on.
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.
If any abnormality (e.g., burning smell) is noticed,
stop the operation, turn off the power switch, and
consult your dealer. Continued use of the product
may result in electric shock, malfunctions, or fire.
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.

3
CAUTION
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 environmental pollution, consult
an authorized agency for proper disposal of remote
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.
Precautions for moving or repairing the controller
WARNING CAUTION
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.
Additional precautions
To avoid damage to the controller, use appropriate
tools to install, inspect, or repair the controller.
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.
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. To avoid damage to the controller, provide protection
against static electricity.

4
Names and functions of controller components
Display The main display can be displayed in two different modes: "Full" and "Basic."
The factory setting is "Full."
Fri
Mode Temp. Fan
Room
Cool Auto
Set temp.
Fri
Cool
Mode Temp. Fan
AutoSet temp.
1
2
3
4
5
j
i
4
3
hgfedcb
6
8
0
1
a
7
9
k
5
2
Fan speed setting appears here.
4Fan speed
Appears while the units are operated in the
energy-save mode.
Appears while the outdoor units are operated in
the silent mode.
Preset temperature appears here.
Appears when the ON/OFF operation is centrally
controlled.
Current time appears here.
Appears when the buttons are locked.
Indoor unit operation mode appears here.
Appears when the operation mode is centrally
controlled.
e
f
2Preset temperature
6
b
1Operation mode
7
Indicates the vane setting.
h
Indicates the louver setting.
Indicates the ventilation setting.
Appears when the On/Off timer, Night setback, or
Auto-off timer function is enabled.
appears when the timer is disabled by the
centralized control system.
i
j
c
Indicates when filter needs maintenance.
Appears when the filter reset function is centrally
controlled.
Appears when the preset temperature is centrally
controlled.
0
9
8
Appears when the Weekly timer is enabled.
d
Appears when the preset temperature range is
restricted.
k
Functions of the corresponding buttons appear
here.
5Button function guide
Appears when the built-in thermistor on the
remote controller is activated to monitor the
room temperature (a).
appears when the thermistor on the
indoor unit is activated to monitor the room
temperature.
g
3Clock
(See the Installation Manual.)
Current room temperature appears here.
aRoom temperature
(See the Installation Manual.)
Full mode
Basic mode
* All icons are displayed for explanation.
Function buttons
5
6
1234
7890
Press to turn ON/OFF the indoor unit.
1ON/OFF button
This lamp lights up in green while the unit
is in operation. It blinks while the remote
controller is starting up or when there is
an error.
Press to save the setting.
Main display: Press to change the operation
mode.
Main menu: Press to move the cursor down.
Press to return to the previous screen.
Main display : Press to decrease temperature.
Main menu: Press to move the cursor up.
Press to bring up the Main menu.
Main display : Press to increase temperature.
Main menu: Press to go to the previous page.
Operation settings will appear.
When the backlight is off, pressing any
button turns the backlight on and it
will stay lit for a certain period of time
depending on the screen.
Main display : Press to change the fan speed.
Main menu: Press to go to the next page.
6ON/OFF lamp
2SELECT button
7Function button F1
3RETURN button
8Function button F2
4MENU button
9Function button F3
5Backlit LCD
0Function button F4
Fri
Room
Set temp.
Mode Temp. Fan
Cool Auto
Main
Main display:
Cursor Page
Main menu
Vane·Louver·Vent. (Lossnay)
High power
Timer
Weekly timer
OU silent mode
The functions of the function buttons
change depending on the screen. Refer
to the button function guide that appears
at the bottom of the LCD for the functions
they serve on a given screen.
When the system is centrally controlled,
the button function guide that
corresponds to the locked button will not
appear.
Main display Main menu
Function guide
7890 7890
Controller interface
• When the backlight is off, pressing any button turns the backlight on and
does not perform its function. (except for the ON/OFF button)
• Most settings (except ON/OFF, mode, fan speed, temperature) can be
made from the Menu screen.

5
Basic operations
Press button 1( ON/OFF ).
Press button 7 ( F1 ) to go through the operation
modes.
Turning ON and selecting operation mode
Preset temperature setting
Cool Dry Fan Auto
Heat Auto cool Auto heat
1
2The ON/OFF lamp and the LCD will light up.
F1
*1 Operation modes that are not available to the connected indoor unit models will not appear on the display.
*2 Single or dual set points will appear, depending on the indoor unit model.
* Interlocked operation is performed in all the operation modes when the ventilation unit is interlocked.
Cool
*1
Dry
*1
Fan Auto
*1*2
Heat
*1
Operation mode icons
<Auto (dual set point)>
Preset temperature will be displayed either in Celsius in 0.5- or 1-degree increments, or in Fahrenheit, depending on
the indoor unit model and the display mode setting on the remote controller.
Press button 8( F2 ) or 9( F3 ).
1 2 Press button 7( F1 ) or button 8( F2 ) to
move the cursor to the desired temperature
setting (cooling or heating).
Press button 9( F3 ) to decrease the selected
temperature, and 0( F4 ) to increase.
F1 F2 F3 F4
Auto
Room
26
2
28
Auto
Mode Temp. Fan
Fri
2
F1 F2 F3 F4
Main display:
Cursor
Set Temp.
Temp.
28
Press button 8( F2 ) to decrease the preset temperature.
Press button 9( F3 ) to increase the preset temperature.
<Cool, Dry, Heat, and Auto (single set point)>
Preset temperature
for cooling
Preset temperature
for heating

Fan speed setting
Auto
Press button 0( F4 ) to go through the fan speed.
* The number of available fan speeds depends on the model.
<Note>
The actual fan speed will be different from the fan speed displayed on
the LCD when one of the following conditions is met.
• While "Standby" or "Defrost" is displayed
• When the room temperature is higher than the preset temperature during
the heating mode
• Right after the heating operation (during stand by for switching the
operation mode)
• During the dry mode
F1 F2 F3 F4
Fri
On
LouverVent.Vane
Low
F1 F2 F3 F4
Main
Main display:
Cursor Page
Main menu
Vane·Louver·Vent. (Lossnay)
High power
Timer
Weekly timer
OU silent mode
Step 1 Step 2 Step 3 Step 4 Step 5 Swing
Auto
F1 F2 F3 F4
Cool
Room
AutoSet temp.
Mode Temp. Fan
Fri
Vane setting
1Press button 4( MENU ). 2
"Vane•Louver•Vent.(Lossnay)" is
selected. Press button 2( SELECT ).
3Press button 7( F1 ) or 8 ( F2 )
to change the vane angle.
* The settable vane
angle varies with
the model of indoor
units.
<Note>
The actual vane angle will be different from the vane angle displayed on the LCD when one of the following conditions is met.
• While "Standby" or "Defrost" is displayed
• The room temperature is higher than the preset temperature during the heating mode
• Right after the heating operation (during stand by for switching the operation mode)
Operation mode Preset temperature range
Cool/Dry 19 ~ 30 ºC (67 ~ 87 ºF) *1
Heat 17 ~ 28 ºC (63 ~ 83 ºF) *1
Auto
(Single set point)
19 ~ 28 ºC (67 ~ 83 ºF) *1
Auto
(Dual set points)
[Cool]
Preset temperature range for the
Cool mode
[Heat]
Preset temperature range for the
Heat mode
Fan/Ventilation Not settable
* The temperature range restriction setting will be applied
preferentially, if any. If the setting value is outside of the
range, a message "Temp. range locked" will appear. Refer to
the Instruction Book of the remote controller for details.
*1 The settable temperature range varies with the model of
indoor units.
*2 The preset temperature settings for cooling and heating in the
Auto (dual set point) mode are used by the Cool/Dry and Heat
modes.
The preset temperatures for cooling and heating in the Auto
(dual set point) mode can be set to meet the conditions below:
• Preset cooling temperature is higher than preset heating
temperature.
• The minimum temperature difference requirement
between cooling and heating preset temperatures (varies
with the models of indoor units connected) is met.
6
*2

Ventilation operation
Automatic cooling/heating operation
Press button 1( ON/OFF ).
Press button 7 ( F1 ) to display the operation mode "Auto".
1
2
F1
When the room temperature is higher than the preset temperature, cooling operation starts.
When the room temperature is lower than the preset temperature, heating operation starts.
* The current operation mode ("Auto cool" or "Auto heat") will be displayed after the mode is determined.
If "Display/non-display of COOL/HEAT during AUTO mode" has been set to "Non-display" while making
the initial settings, only "Auto" will be displayed. Refer to the Installation Manual for details about initial
settings for the remote controller.
<When performing an interlocked operation of the ventilation unit with the indoor unit>
Press button 1( ON/OFF ) to turn both the indoor unit and the ventilation unit on.
<When operating the ventilation unit individually>
1Press button 4( MENU ). 2
"Vane•Louver•Vent.(Lossnay)" is
selected. Press button 2( SELECT ).
3Press button 9( F3 ) to
change the fan speed.
F1 F2 F3 F4
Fri
On
LouverVent.Vane
Low
F1 F2 F3 F4
Main
Main display:
Cursor Page
Main menu
Vane·Louver·Vent. (Lossnay)
High power
Timer
Weekly timer
OU silent mode
F1 F2 F3 F4
Cool
Room
AutoSet temp.
Mode Temp. Fan
Fri
Indoor unit fan may operate even when the ventilation unit is operated individually, depending on the models of the indoor unit and the
ventilation unit.
<Auto (single set point)>
<Auto (dual set point)>
When the room temperature is higher than the preset cooling temperature, cooling operation starts.
When the room temperature is lower than the preset heating temperature, heating operation starts.
* When the operation mode is set to the Auto (dual set point) mode, only "Auto" will appear on the display, even
if the display setting of "Auto cool/Auto heat" is enabled.
7

Troubleshooting
When an error occurs, the following screen will appear.
Check the error status, stop the operation, and consult your dealer.
F1 F2 F3 F4
Error information
Error code
Error unit IU
Ref. address Unt#
Model name
Serial No.
ResetPage
Error information
Contact information
Dealer
Tel
ResetPage
Reset error: Reset button
Reset error: Reset button
Error code, error unit, refrigerant address, unit model name, and
serial number will appear.
The model name and serial number will appear only if the information
have been registered.
Press button 7( F1 ) or 8( F2 ) to go to the next page.
Contact information (dealer's phone number) will appear if the
information have been registered.
blinks
8

F1 F2 F3 F4
Main
Main display:
Cursor Page
Main menu
Vane·Louver·Vent. (Lossnay)
High power
Timer
Weekly timer
OU silent mode
Timer, Weekly timer, Energy saving
F1 F2 F3 F4
Main
Main display:
Cursor Page
Main menu
Restriction
Energy saving
Night setback
Filter information
Error information
The settings for Timer, Weekly timer, and Energy saving operation can be made from the remote controller.
Press button 4( MENU ) to go to the Main menu, and move the cursor to the desired setting with button 7 ( F1 )
or 8( F2 ). Refer to the Instruction Book of the remote controller for further information.
Timer
Weekly timer
Energy saving
•On/Off timer
Operation On/Off times can be set in 5-minute increments.
•Auto-Off timer
Auto-Off time can be set to a value from 30 to 240 in 10-minute increments.
Operation On/Off times for a week can be set.
Up to eight operation patterns can be set for each day.
•Automatic return to the preset temperature
The units operate at the preset temperature after performing energy-save operation for a preset time period.
The preset time can be set to a value from 30 to 120 in 10-minute increments.
•Setting the energy-saving operation schedule
The start/stop times to operate the units in the energy-save mode for each day of the week and the energy-saving
rate can be set.
Up to four operation patterns can be set for each day.
The times can be set in 5-minute increments.
The energy-saving rate range is 0% and 50 to 90% in 10% increments.
9

Maintenance
Cool
Room
AutoSet temp.
Mode Temp. Fan
Fri will appear on the Main display in the Full mode when it
is time to clean the filters.
F1 F2 F3 F4
Main
Main display:
Cursor Page
Main menu
Restriction
Energy saving
Night setback
Filter information
Error information
F1 F2 F3 F4
Main menu:
Filter information
Reset
Please clean the filter.
Press Reset button after
filter cleaning.
F1 F2 F3 F4
Filter information
OK
Cancel
Reset filter sign?
Filter information
1Select "Filter information"
from the Main menu and
press button 2( SELECT ).
2Press button 0( F4 )
to reset filter sign. 3Select "OK" with button 0( F4 ). 4A confirmation screen will appear.
Resetting the filter sign
F1 F2 F3 F4
Filter information
Filter sign reset
Main menu:
<Note>
• Make sure to clean the filters before resetting filter sign. When the filter sign is reset, the cumulative operation time of the unit
will be reset.
• If two or more indoor units of different models are connected, the filter sign will appear when the filter on one of the indoor units
is due for cleaning. (long life filter: 2500 hours, general filter: 100 hours)
When the filter sign is reset, the cumulative operation time of all units will be reset.
• The filter sign is scheduled to appear after a certain duration of operation, based on the premise that the indoor units are
installed in a space with ordinary air quality. Depending on the air quality, the filter may require more frequent cleaning.
10

WT06694X01
This product is designed and intended for use in the residential,
commercial, and light-industrial environment.
The product at hand is based on the following EU regulations:
• Low Voltage Directive 2006/95/EC
• Electromagnetic Compatibility Directive 2004/108/EC
HEAD OFFICE: TOKYO BLDG. , 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
Authorized representative in EU: MITSUBISHI ELECTRIC EUROPE B.V.
HARMAN HOUSE, 1 GEORGE STREET, UXBRIDGE, MIDDLESEX UB8 1QQ, U.K.