CITY MULTI Control System
and Mitsubishi Mr. Slim Air Conditioners
<ORIGINAL>
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MA Remote Controller PAR-33MAA
Simple Operation Manual
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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.
Safety precautions
• Thoroughly read the following safety precautions before using the unit.
• Observe these precautions carefully to ensure safety.
WARNING
CAUTION
• 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.
Indicates a risk of death or serious injury.
Indicates a risk of serious injury or structural damage.
General precautions
WARNING
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.
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 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.
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.
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.
2
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.
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.
3
Additional precautions
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.
This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a
person responsible for their safety.
Children should be supervised to ensure that they
do not play with the appliance.
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.
To avoid damage to the controller, provide protection
against static electricity.
This appliance is intended to be used by expert
or trained users in shops, in light industry and on
farms, or for commercial use by lay persons.
If the supply cord is damaged, it must be replaced
by the manufacturer, its service agent or similarly
qualified persons in order to avoid a hazard.
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."
Full mode
hgfedcb
6
7
8
9
0
1
a
Room
Set temp.
Cool Auto
Mode Temp. Fan
k
2
5
Basic mode
1
Cool
2
Mode Temp. Fan
* All icons are displayed for explanation.
5
Controller interface
Function buttons
7 8 9 0
• 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.
1Operation mode
Indoor unit operation mode appears here.
2Preset temperature
Preset temperature appears here.
Fri
3
i
l
j
4
3
Fri
AutoSet temp.
4
5
6
1234
3Clock
(See the Installation Manual.)
Current time appears here.
4Fan speed
Fan speed setting appears here.
5Button function guide
Functions of the corresponding buttons appear
here.
6
Appears when the ON/OFF operation is centrally
controlled.
7
Appears when the operation mode is centrally
controlled.
8
Appears when the preset temperature is centrally
controlled.
9
Appears when the filter reset function is centrally
controlled.
0
Indicates when filter needs maintenance.
aRoom temperature
(See the Installation Manual.)
Current room temperature appears here.
b
Appears when the buttons are locked.
1 ON/OFF button
Press to turn ON/OFF the indoor unit.
2 SELECT button
Press to save the setting.
3 RETURN button
Press to return to the previous screen.
4 MENU button
Press to bring up the Main menu.
5 Backlit LCD
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.
6 ON/OFF lamp
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.
c
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.
d
Appears when the Weekly timer is enabled.
e
Appears while the units are operated in the
energy-save mode.
f
Appears while the outdoor units are operated in
the silent mode.
g
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.
h
Indicates the vane setting.
i
Indicates the louver setting.
j
Indicates the ventilation setting.
k
Appears when the preset temperature range is
restricted.
l
Appears when an energy-saving operation is
performed using a "3D i-See sensor" function.
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
Room
Set temp.
Cool Auto
Mode Temp. Fan
7 8 9 0 7 8 9 0
7 Function button F1
Main display: Press to change the operation
mode.
Main menu: Press to move the cursor down.
8 Function button F2
Main
display
Main menu: Press to move the cursor up.
9 Function button F3
Main
display
Main menu: Press to go to the previous page.
0 Function button F4
Main
display
Main menu: Press to go to the next page.
Main
Fri
Function guide
: Press to decrease temperature.
: Press to increase temperature.
: Press to change the fan speed.
Main menu
Vane·Louver·Vent. (Lossnay)
High power
Timer
Weekly timer
OU silent mode
Main display:
Cursor Page
5
Basic operations
F1 F2 F3 F4
Auto
Room
Auto
Mode Te mp. Fan
Fri
Operation mode icons
Cool Dry Fan Auto
Heat
Auto Cool Auto Heat
Turning ON and selecting operation mode
Press button 1 ( ON/OFF ).
1
Press button 7 ( F1 ) to go through the operation
2
modes.
Cool
*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.
Dry
Fan Auto
*1
*1
*1*2
Heat
*1
The ON/OFF lamp and the LCD will light up.
F1
Preset temperature setting
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.
<Cool, Dry, Heat, and Auto (single set point)>
Press button 8 ( F2 ) to decrease the preset temperature.
Press button 9 ( F3 ) to increase the preset temperature.
<Auto (dual set point)>
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.
6
Preset temperature
for cooling
Preset temperature
for heating
Set Temp.
Main display:
Cursor
F1 F2 F3 F4
Temp.
Auto
Step 1Step 2Step 3Step 4Step 5
F1 F2 F3 F4
Cool
Room
AutoSet temp.
Mode Te mp. Fan
Fri
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)
Auto
(Dual set points)
19 ~ 28 ºC (67 ~ 83 ºF) *1
[Cool]
Preset temperature range for the
Cool mode
[Heat]
Preset temperature range for the
Heat mode
*2
Fan/Ventilation Not settable
Fan speed setting
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
* 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.
Vane setting
Press button 4 ( MENU ).
1
"Vane•Louver•Vent.(Lossnay)" is
2
selected. Press button 2 ( SELECT ).
Main
Main menu
Vane·Louver·Vent. (Lossnay)
High power
Timer
Weekly timer
OU silent mode
Main display:
Cursor Page
F1 F2 F3 F4
Auto
<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)
Press button 7 ( F1 ) or 8 ( F2 )
3
to change the vane angle.
Fri
On
Low
LouverVent.Vane
F1 F2 F3 F4
Swing
* The settable vane
angle varies with
the model of indoor
units.
7
F1 F2 F3 F4
Cool
Room
AutoSet temp.
Mode Te mp. Fan
Fri
Basic operations
Automatic cooling/heating operation
Press button 1 ( ON/OFF ).
1
Press button 7 ( F1 ) to display the operation mode "Auto".
2
<Auto (single set point)>
When the room temperature is higher than the preset temperature, cooling operation starts.
F1
Ventilation operation
<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>
1
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.
<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.
Press button 4 ( MENU ).
"Vane•Louver•Vent.(Lossnay)" is
2
3
selected. Press button 2 ( SELECT ).
Main
Main menu
Vane·Louver·Vent. (Lossnay)
High power
Timer
Weekly timer
OU silent mode
Main display:
Cursor Page
Press button 9 ( F3 ) to
change the fan speed.
Fri
On
Low
LouverVent.Vane
F1 F2 F3 F4
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.
8
F1 F2 F3 F4
Troubleshooting
When an error occurs, the following screen will appear.
Check the error status, stop the operation, and consult your dealer.
Error information
Error code
Error unit IU
Ref. address Unt#
Model name
Serial No.
Reset error: Reset button
ResetPage
F1 F2 F3 F4
Error information
Contact information
Dealer
Tel
Reset error: Reset button
ResetPage
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.
blinks
Contact information (dealer's phone number) will appear if the
information have been registered.
9
Timer, Weekly timer, Energy saving
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.
Main
Main menu
Vane·Louver·Vent. (Lossnay)
High power
Timer
Weekly timer
OU silent mode
Main display:
Cursor Page
Main
Main menu
Restriction
Energy saving
Night setback
Filter information
Error information
Main display:
Cursor Page
F1 F2 F3 F4
F1 F2 F3 F4
Timer
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.
Weekly timer
Operation On/Off times for a week can be set.
Up to eight operation patterns can be set for each day.
Energy saving
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.
10
Maintenance
.F
F1 F2 F3 F4
Filter information
OK
Cancel
Reset filter sign?
F1 F2 F3 F4
Filter information
Filter sign reset
Main menu:
Filter information
Room
Cool
Mode Temp
Fri
AutoSet temp.
an
will appear on the Main display in the Full mode when it
is time to clean the filters.
Resetting the filter sign
Select "Filter information"
1
from the Main menu and
press button 2 ( SELECT ).
Main
Main menu
Restriction
Energy saving
Night setback
Filter information
Error information
Main display:
Cursor Page
F1 F2 F3 F4
<Note>
• Make sure to clean the lters before resetting lter sign. When the lter 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 lter sign will appear when the lter on one of the indoor units
is due for cleaning. (long life lter: 2500 hours, general lter: 100 hours)
When the lter sign is reset, the cumulative operation time of all units will be reset.
• The lter 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 lter may require more frequent cleaning.
Press button 0 ( F4 )
2
to reset filter sign.
Filter information
Please clean the filter.
Press Reset button after
filter cleaning.
Main menu:
F1 F2 F3 F4
Reset
Select "OK" with
3
button 0 ( F4 ).
A conrmation screen will
4
appear.
11
12
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