Mitsubishi Electric PAR-31MAA User manual

Prior to use, thoroughly read the instructions in this manual to use the product correctly.
Retain for future reference.
Make sure that this 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.
CITY MULTI Control System
and Mitsubishi Mr. Slim Air Conditioners
MA Remote Controller PAR-31MAA
Instruction Book
English
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Dansk

Mode Temp.
Cool Set temp.
Product features
Feature 1
Large, easy-to-see display
Full-dot LCD display with large characters
for easy viewing
Feature 2
Simple button arrangement
Feature 3
Large, easy-to-press buttons
Buttons are arranged according
to usage to allow for intuitive
navigation.
Frequently used buttons are larger
than other buttons to prevent
unintended pressing of other
buttons.

Contents
Safety precautions .................................... 4
Names and functions of controller components ......... 6
Controller interface ....................................................6
Display.......................................................................8
Basic operations .......................................... 12
Power ON/OFF........................................................12
Operation mode, temperature, and fan speed settings ..........14
Maintenance .................................................52
Troubleshooting ............................................ 54
Specifications ................................................ 56
Filter information......................................................52
Error information......................................................54
Read before operating the controller ......... 10
Menu structure.........................................................10
Icon explanations..................................................... 11
Main menu list .........................................................18
Restrictions for the sub remote controller................19
Navigating through the Main menu..........................20
Vane•Louver•Vent. (Lossnay)..................................22
High power ..............................................................24
Clock........................................................................25
Timer (On/Off timer).................................................26
(Auto-Off timer)..............................................28
Weekly timer............................................................30
OU silent mode........................................................32
Restriction................................................................34
Energy saving..........................................................38
Night setback...........................................................42
Manual vane angle ..................................................44
Main display.............................................................46
Contrast...................................................................47
Language selection .................................................48
Function setting .......................................................50
Navigating through the menu ......................18
Controller operation-Function settings .......22

4
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.
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.
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.

5
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.

6
Names and functions of controller components
Controller interface
Function buttons
5
6
1234
7890

7
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 Page 20
9Function button F3
5Backlit LCD
0Function button F4
When the backlight is off, pressing any
button turns the backlight on and does
not perform its function. (except for the
ON/OFF button)
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

8
Fri
Mode Temp. Fan
Room
Cool Auto
Set temp.
Fri
Cool
Mode Temp. Fan
AutoSet temp.
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." To switch to the "Basic" mode, change the setting
on the Main display setting. (Refer to page 46.)
Full mode
Basic mode
* All icons are displayed for
explanation.
1
2
3
4
5
j
i
4
3
hgfedcb
6
8
0
1
a
7
9
k
5
2

9
Fan speed setting appears here.
4Fan speed Page 16
Appears while the units are operated in the
energy-save mode. (Will not appear on some
models of indoor units)
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.
ePage 40
fPage 32
2Preset temperature Page 15
6
bPage 36
1Operation mode Page 14
7
Indicates the vane setting.
hPage 22
Indicates the louver setting.
Indicates the ventilation setting.
Appears when the On/Off timer (Page 26), Night
setback (Page 42), or Auto-off timer (Page 28)
function is enabled.
appears when the timer is disabled by the
centralized control system.
iPage 23
jPage 23
cPage 26, 28, 42
Indicates when filter needs maintenance.
Appears when the filter reset function is centrally
controlled.
Appears when the preset temperature is centrally
controlled.
0Page 52
9
8
Appears when the Weekly timer is enabled.
dPage 30
Appears when the preset temperature range is
restricted.
kPage 34
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
Most settings (except ON/OFF, mode, fan speed, temperature) can be made from the Menu
screen. (Refer to page 20.)
3Clock
(See the Installation Manual.)
Current room temperature appears here.
aRoom temperature
(See the Installation Manual.)

Page 22
Page 24
Page 26
Page 28
Page 30
Page 32
Page 34
Page 36
Page 38
Page 40
Page 42
Page 52
Page 54
Refer to the Instructions Manual that
came with the automatic elevating panel.
Page 44
Refer to the Installation Manual.
Page 25
Page 46
Page 47
Refer to the Installation Manual.
Refer to the Installation Manual.
Refer to the Installation Manual.
Page 48
10
Read before operating the controller
Menu structure
Main menu
Press the
MENU button.
Move the cursor
to the desired
item with
the F1 and
F2 buttons,
and press
the SELECT
button.
Vane•Louver•Vent. (Lossnay)
High power
Timer
Weekly timer
OU silent mode
Night setback
Restriction
Energy saving
Filter information
Error information
Maintenance
Initial setting
On/Off timer
Auto-Off timer
Temp. range
Operation lock
Auto return
Schedule
Auto descending panel
Manual vane angle
Main/Sub
Clock
Main display
Contrast
Display details
Auto mode
Administrator password
Language selection

11
Icon explanations
F1 F2 F3 F4
Timer
Enter administrator password
Select:
Cursor
Not all functions are available on all models of indoor units.
Service
Test run
Input maintenance info.
Function setting
(Mr. Slim)
Lossnay (City Multi only)
Check
Self check
Maintenance password
Remote controller check
Refer to the indoor unit Installation
Manual.
Refer to the indoor unit Installation
Manual.
Refer to the Installation Manual.
Refer to page 50.
Refer to the Installation Manual.
Refer to the indoor unit Installation
Manual.
Refer to the Installation Manual.
Refer to the Installation Manual.
Refer to the Installation Manual.
Controller operation
Timer P
The table below
summarizes the square
icons used in this manual.
The administrator or maintenance user password must be entered
on the password input screen to change settings. There is no
settings that can skip this process.
F1 : Press to move the cursor left.
F2 : Press to move the cursor right.
F3 : Press to decrease the value by 1.
F4 : Press to increase the value by 1.
*Changes cannot be made unless the
correct password is entered.
Indicates
settings that
can be made
only from the
main remote
controller.
Indicates settings that can be
changed only while the units
are in operation.
Indicates settings that can be changed
only while the units are not in operation.
Indicates settings that can be
changed only while the units
are operated in the Cool,
Heat, or Auto mode.
Indicates functions that are not available
when the buttons are locked or the
system is centrally controlled.
P
Main
ON
OFF
Function setting
(City Multi)

12
Power ON/OFF
Basic operations
Press the ON/OFF button.
The ON/OFF lamp will light up in green, and the
operation will start.
Button operation
Press the ON/OFF button again.
The ON/OFF lamp will come off, and the operation will
stop.
ON
OFF

Settable preset temperature range
The settable temperature range varies with the model of indoor units.
Operation status memory
Remote controller setting
Operation mode Operation mode before the power was turned off
Preset temperature Preset temperature before the power was turned off
Fan speed Fan speed before the power was turned off
Operation mode Preset temperature range
Cool/Dry 19 ~ 30 ºC (67 ~ 87 ºF)
Heat 17 ~ 28 ºC (63 ~ 83 ºF)
Auto (Single set point) 19 ~ 28 ºC (67 ~ 83 ºF)
Auto (Dual set points) [Cool]
Preset temperature range for the Cool mode
[Heat]
Preset temperature range for the Heat mode
Fan/Ventilation Not settable
13

Operation mode, temperature, and fan speed settings
F1 F2 F3 F4
Cool
Room
AutoSet temp.
Mode Temp. Fan
Fri Press the F1 button to go through the operation
modes in the order of "Cool, Dry, Fan, Auto, and
Heat." Select the desired operation mode.
• Operation modes that are not available to the connected
indoor unit models will not appear on the display.
Cool Dry Fan
Auto Heat
ON
What the blinking mode icon means
The mode icon will blink when other indoor units in the same refrigerant system (connected to the same
outdoor unit) are already operated in a different mode. In this case, the rest of the unit in the same
group can only be operated in the same mode.
Button operation
Operation mode
<AUTO (dual set point) mode>
When the operation mode is set to the Auto (dual set point) mode, two preset
temperatures (one each for cooling and heating) can be set. Depending on the room
temperature, indoor unit will automatically operate in either the Cool or Heat mode
and keep the room temperature within the preset range.
Operation pattern during Auto (dual set point) mode
The room temperature
changes corresponding
to the change in the
outside temperature.
HEAT COOL HEAT COOL
Preset temp.
(COOL)
Preset temp.
(HEAT)
Room temperature
The graph below shows the operation pattern of indoor unit operated in the Auto
(dual set point) mode.
14
Basic operations

F1 F2 F3 F4
Cool
Room
AutoSet temp.
Mode Temp. Fan
Fri Press the F2 button to decrease the preset
temperature, and press the F3 button to
increase.
• Refer to the table on page 13 for the settable
temperature range for different operation modes.
• Preset temperature range cannot be set for Fan/
Ventilation operation.
• Preset temperature will be displayed either in
Centigrade 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.
Preset temperature
<Cool, Dry, Heat, and Auto (single set point)>
<Auto (dual set point) mode>
Cool
Room
28.5
AutoSet temp.
Mode Temp. Fan
Fri
28.5
Example display
(Centigrade in 0.5-degree increments)
1The current preset temperatures will appear.
Press the F2 or F3 button to display the
Settings screen.
F1 F2 F3 F4
Auto
Room
26
2
28 Auto
Mode Temp. Fan
Fri
Preset
temperature
for cooling
Preset
temperature
for heating
15

Navigating through the screens
• To return to the Main screen ...... RETURN button
F1 F2 F3 F4
Cool
Room
AutoSet temp.
Mode Temp. Fan
Fri Press the F4 button to go through the fan
speeds in the following order.
•The available fan speeds depend on the models of connected
indoor units.
Auto
Fan speed
2Press the F1 or F2 button to move the cursor
to the desired temperature setting (cooling or
heating).
Press the F3 button to decrease the selected
temperature, and F4 to increase.
• Refer to the table on page 13 for the settable
temperature range for different operation modes.
• The preset temperature settings for cooling and heating
in the Auto (dual set point) mode are also used by the
Cool/Dry and Heat modes.
• The preset temperatures for cooling and heating in the
Auto (dual set point) mode must 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.
* If preset temperatures are set in a way that does not meet
the minimum temperature difference requirement, both preset
temperatures will automatically be changed within the allowable setting
ranges.
2
F1 F2 F3 F4
Main display:
Cursor
Set Temp.
Temp.
28
Preset
temperature
for cooling
16
Preset
temperature
for heating
Basic operations

17

Navigating through the menu
Main menu list
Setting and display
items
Setting details Reference
page
Vane•Louver•Vent.
(Lossnay)
Use to set the vane angle.
•Select a desired vane setting from five different settings.
Use to turn ON/OFF the louver.
•Select a desired setting from "ON" and "OFF."
Use to set the amount of ventilation.
•Select a desired setting from "Off," "Low," and "High."
22
High power Use to reach the comfortable room temperature quickly.
•Units can be operated in the High-power mode for up to 30
minutes.
24
Timer On/Off
timer
Use to set the operation On/Off times.
•Time can be set in 5-minute increments.
* Clock setting is required.
26
Auto-Off
timer
Use to set the Auto-Off time.
•Time can be set to a value from 30 to 240 in 10-minute increments.
28
Weekly timer Use to set the weekly operation On/Off times.
•Up to eight operation patterns can be set for each day.
* Clock setting is required.
* Not valid when the On/Off timer is enabled.
30
OU silent mode Use to set the time periods in which priority is given to quiet
operation of outdoor units over temperature control. Set the
Start/Stop times for each day of the week.
•Select the desired silent level from "Normal," "Middle," and "Quiet."
* Clock setting is required.
32
Restriction Temp.
range
Use to restrict the preset temperature range.
•Different temperature ranges can be set for different operation
modes.
34
Operation
lock
Use to lock selected functions.
•The locked functions cannot be operated.
36
Energy
saving
Auto
return
Use to get the units to operate at the preset temperature after
performing energy-save operation for a specified time period.
•Time can be set to a value from 30 and 120 in 10-minute
increments.
* This function will not be valid when the preset temperature ranges
are restricted.
38
Schedule Set the start/stop times to operate the units in the energy-save
mode for each day of the week, and set the energy-saving rate.
•Up to four energy-save operation patterns can be set for each day.
•Time can be set in 5-minute increments.
•Energy-saving rate can be set to a value from 0% and 50 to 90% in
10% increments.
* Clock setting is required.
40
18

Restrictions for the sub remote controller
Main
Main display:
Cursor Page
Main menu
Vane·Louver·Vent. (Lossnay)
High power
Timer
Weekly timer
OU silent mode
The following settings cannot be made
from the sub remote controller. Make these
settings from the main remote controller.
"Main" is displayed in the title of the Main
menu on the main remote controller.
•Timer
(On/Off timer, Auto-Off timer)
•Weekly timer
•OU silent mode
•Energy saving
(Auto return, Schedule)
•Night setback
•Maintenance
(Manual vane angle)
Setting and display
items
Setting details Reference
page
Night setback Use to make Night setback settings.
•Select "Yes" to enable the setting, and "No" to disable the setting.
The temperature range and the start/stop times can be set.
* Clock setting is required.
42
Filter information Use to check the filter status.
•The filter sign can be reset.
52
Error information
Use to check error information when an error occurs.
•Error code, error source, refrigerant address, unit model,
manufacturing number, contact information (dealer's phone
number) can be displayed.
* The unit model, manufacturing number, and contact information
need to be registered in advance to be displayed.
54
Maintenance Manual vane
angle
Use to set the vane angle for each vane to a fixed position. 44
Initial
setting
Clock Use to set the current time. 25
Main
display
Use to switch between "Full" and "Basic" modes for the Main
display.
•The default setting is "Full."
46
Contrast Use to adjust screen contrast. 47
Language
selection
Use to select the desired language. 48
Service Function
setting
(City Multi)
Use to make settings for indoor unit's functions. 50
19

F1 F2 F3 F4
Page
Main
Main display:
Cursor Page
Main menu
Vane·Louver·Vent. (Lossnay)
High power
Timer
Weekly timer
OU silent mode
Press F3 to go to the previous page.
Press F4 to go to the next page.
Navigating through the menu
Navigating through the Main menu
F1 F2 F3 F4
Main
Main display:
Cursor Page
Main menu
Vane·Louver·Vent. (Lossnay)
High power
Timer
Weekly timer
OU silent mode
Press the MENU button.
The Main menu will appear.
F1 F2 F3 F4
Cursor
Main
Main display:
Cursor Page
Main menu
Vane·Louver·Vent. (Lossnay)
High power
Timer
Weekly timer
OU silent mode
Press F1 to move the cursor down.
Press F2 to move the cursor up.
Button operation
Accessing the Main menu
Item selection
Navigating through the pages
20