Mitsubishi Electric CITY MULTI MA PAR-41MAA User manual

<ORIGINAL>
Prior to use, thoroughly read the instructions in this manual to use the product correctly.
Retain for future reference.
Make sure that all the included manuals 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-41MAA
Instruction Book
en WT09533X02

Safety precautions............................................................................. 4
Controller components ...................................................................... 6
Controller interface ................................................................................................. 6
Display .................................................................................................................... 8
Menu structure and icons ................................................................ 10
Menu structure...................................................................................................... 10
Icon explanations.................................................................................................. 13
Basic operations.............................................................................. 14
Power ON/OFF ..................................................................................................... 14
Operation mode, temperature, and fan speed settings ........................................ 15
Navigating through the menu .......................................................... 18
Main menu list....................................................................................................... 18
Restrictions for the sub remote controller ............................................................. 20
Navigating through the Main menu....................................................................... 21
Function settings ............................................................................. 22
Vane•3D i-See•Vent.(Lossnay) ............................................................................. 22
High power............................................................................................................ 27
Manual vane angle ............................................................................................... 28
Timer (On/Off timer).............................................................................................. 33
Timer (Auto-Off timer) ........................................................................................... 36
Weekly timer ......................................................................................................... 38
OU silent mode ..................................................................................................... 41
Night setback ........................................................................................................ 44
Restriction............................................................................................................. 47
Energy saving ....................................................................................................... 53
Energy data (Mr. SLIM only) ................................................................................. 58
Clock..................................................................................................................... 62
Daylight saving time.............................................................................................. 64
Main display.......................................................................................................... 66
Black and white inversion setting.......................................................................... 67
Contrast•Brightness .............................................................................................. 69
Language selection............................................................................................... 70
Initialize remote controller..................................................................................... 72
Remote controller information............................................................................... 74
Troubleshooting............................................................................... 75
Error information ................................................................................................... 75
No occupancy Auto-OFF ...................................................................................... 78
Maintenance.................................................................................... 79
Filter information ................................................................................................... 79
Specifications .................................................................................. 81
Controller specifications........................................................................................ 81
Function list (as of August 1, 2021) ...................................................................... 82
List of functions that can/cannot be used in combination ..................................... 83
Contents

4
Safety precautions
•Thoroughly read the following safety precautions before using the unit.
•Observe these precautions carefully to ensure safety.
WARNING Indicates a risk of death or serious injury.
CAUTION Indicates a risk of serious injury or structural damage.
•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
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 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.
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.
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 mild
detergent that is diluted with an appropriate amount
of water, and wipe down with a wet cloth followed by
a dry cloth. Do not use the detergent straight.
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.

6
Controller components
Controller interface
⑤
⑥
①②③④
⑦ ⑧ ⑨⑩
Function buttons

7
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 Page 21
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.
When the backlight is off, pressing any
button turns the backlight on and does
not perform its function. (except for the
ON/OFF button)
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.
⑦Function button F1
Main display: Press to change the
operation mode.
Menu screen: The button function varies
with the screen.
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
Cursor Page
Menu screen
⑧Function button F2
Main display: Press to decrease temperature.
Main menu: Press to move the cursor left.
Menu screen: The button function varies
with the screen.
⑨Function button F3
Main display: Press to increase temperature.
Main menu: Press to move the cursor right.
Menu screen: The button function varies
with the screen.
⑩Function button F4
Main display: Press to change the fan speed.
Menu screen: The button function varies
with the screen.
Function guide
⑦⑧⑨⑩ ⑦⑧⑨⑩
⑦⑧⑨⑩

8
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 66.)
Full mode
Basic mode
2
5
k
3
4
i
l
j
a
bn cde f g h
0
8
7
9
6
m
1
* All icons are displayed for
explanation.
1
m
n 2
3
4
5

9
①Operation mode Page 15
②Preset temperature Page 16
③Clock
See the Installation Manual.
④Fan speed Page 17
⑤Button 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.
⑩ Page 79
Indicates when filter needs maintenance.
⑪Room temperature
See the Installation Manual.
⑫ Page 50
Appears when the buttons are locked.
⑬ Page 33, 36, 44
Appears when the On/Off timer (Page 33),
Night setback (Page 44), or Auto-off timer
(Page 36) function is enabled.
appears when the timer is disabled by the
centralized control system.
⑭ Page 38
Appears when the Weekly timer is enabled.
⑮ Page 53
Appears while the units are operated in the
energy-save mode. (Will not appear on some
models of indoor units)
⑯ Page 41
Appears while the outdoor units are operated in
the silent mode.
⑰
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.
⑱ Page 23
Indicates the vane setting.
⑲ Page 24
Indicates the louver setting.
⑳ Page 26
Indicates the ventilation setting.
㉑ Page 47
Appears when the preset temperature range is
restricted.
㉒
Appears when an energy-saving operation is
performed using a “3D i-See sensor” function.
㉓Centrally controlled
Appears for a certain period of time when a
centrally-controlled item is operated.
㉔Error display
An error code appears during the error.
* When an error code is displayed on the main
display, an error is occurring but the indoor unit
can keep its operation. Check the error code,
and consult your dealer.
Most settings (except ON/OFF, mode, fan
speed, temperature) can be made from
the Main menu. (Refer to Page 21.)

10
Menu structure and icons
Menu structure
Main menu
Vane•3D i-See•Vent.(Lossnay) ..........................Page 22
High power .......................................Page 27
Comfort
Manual vane angle
Vertical air direction....................Page 28
Horizontal air direction................Page 31
3D i-See sensor ...................................
Refer to the indoor unit Instruction Book.
Timer
On/Off timer .........................................Page 33
Auto-Off timer ......................................Page 36
Weekly timer .......................................Page 38
OU silent mode .......................................Page 41
Night setback .......................................Page 44
Restriction
Temp. range.........................................Page 47
Operation locked..................................Page 50
Energy saving
Auto return...........................................Page 53
Schedule .............................................Page 55
Energy data (Mr. SLIM only)
Energy data (Unit time, month/day).......Page 58
Data reset............................................Page 61
Operation
Timer menu
Energy saving

11
Basic setting
Main/Sub .............................................Refer to the Installation Manual.
Clock
Clock.........................................Page 62
Daylight saving time ...................Page 64
Administrator password ........................Refer to the Installation Manual.
Display setting
Main display.........................................Page 66
Black and white inversion setting
...Page 67
Display details......................................Refer to the Installation Manual.
Contrast•Brightness .............................Page 69
Language selection ..............................Page 70
Operation setting
Auto mode ...........................................Refer to the Installation Manual.
Wi-Fi interface setting (Mr. SLIM only) ..............Refer to the Installation Manual.
Error information .......................................Page 75
Filter information .......................................Page 79
Cleaning
Auto descending panel .........................Refer to the Instructions Manual that
came with the automatic elevating panel.
Descending operation ................Refer to the Instructions Manual that
came with the automatic elevating panel.
Descending adjustment..............Refer to the Instructions Manual that
came with the automatic elevating panel.
Test run menu
Test run ...............................................Refer to the indoor unit Installation
Manual.
Drain pump test run..............................Refer to the indoor unit Installation
Manual.
Initial setting menu
Maintenance menu
Service menu

12
Menu structure and icons
Maintenance information ..................................Refer to the indoor unit Installation
Manual.
Collect model names and serial No. (Mr. SLIM only)...
Refer to the indoor unit Installation
Manual.
Model name input.................................Refer to the indoor unit Installation
Manual.
Serial No. input ....................................Refer to the indoor unit Installation
Manual.
Dealer information input .......................Refer to the indoor unit Installation
Manual.
Initialize maintenance info.....................Refer to the indoor unit Installation
Manual.
Settings menu
Function setting (Mr. SLIM)...................Refer to the Installation Manual.
Function setting (CITY MULTI)..............Refer to the Installation Manual.
Lossnay (CITY MULTI only) ..................Refer to the Installation Manual.
Rotation setting (Mr. SLIM only) ............Refer to the indoor unit Installation
Manual.
Check menu
Error history menu
Error history...............................Refer to the Installation Manual.
Preliminary error history (Mr. SLIM only)
...
Refer to the Installation Manual.
Diagnosis
Self check..................................Refer to the Installation Manual.
Remote controller check.............Refer to the Installation Manual.
Smooth maintenance (Mr. SLIM only)
.......Refer to the indoor unit Installation
Manual.
Request code (Mr. SLIM only)...............Refer to the indoor unit Installation
Manual.
Other menu
Maintenance password.........................Refer to the Installation Manual.
Initialize remote controller ....................Page 72
Remote controller information ...............Page 74
Not all functions are available on all models of indoor units.

13
Icon explanations
Controller operation
Timer P
PThe 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.
Main
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.
ON
Indicates settings that can
be changed only while the
units are in operation.
OFF
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.
The table below
summarizes the square
icons used in this manual.
F4F3F2F1

14
Basic operations
Power ON/OFF
Button operation
ON
Press the ON/OFF button.
The ON/OFF lamp will light up in green, and the
operation will start.
When “LED lighting” is set to “No,” the ON/OFF lamp will
not light up.
OFF
Press the ON/OFF button again.
The ON/OFF lamp will come off, and the operation will
stop.

15
Operation mode, temperature, and fan speed
settings ON
Button operation
Operation mode
Each pressing of the F1 button cycles through the following
operation modes.
Select the desired operation mode.
Cool Dry Fan
Auto Heat
•Operation modes that are not available to the connected indoor unit
models will not appear on the display.
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.
<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.
The graph below shows the operation pattern of indoor unit operated in the Auto
(dual set point) mode.
Preset temp.
(Cool)
Preset temp.
(Heat)
Operation pattern during Auto (dual set point) mode
Heat Cool
The room temperature
changes corresponding
to the change in the
outside temperature.
Heat
Room temperature
Cool

16
Basic operations
Preset temperature
<Cool, Dry, Heat, and Auto (single set point)>
Press the F2 button to decrease the preset
temperature, and press the F3 button to increase.
•Refer to the table on page 17 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.
<Auto (dual set point) mode>
1The current preset temperatures will appear.
Press the F2 or F3 button to display the Settings
screen.
Operation mode
Room
temperature
(Refer to the
Installation
Manual.)
Preset
temperature
for cooling
Preset
temperature
for heating

17
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 press the F4 button to increase.
•Refer to the table below 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.
Settable preset temperature range
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
The settable temperature range varies with the model of indoor units.
Fan speed
Each pressing of the F4 button cycles through the following
fan speeds.
Auto
•The available fan speeds depend on the models of connected
indoor units.
Preset
temperature
for heating
Preset
temperature
for cooling

18
Navigating through the menu
Main menu list
Main menu Setting items Setting details Page
Operation Vane•3D i-See•Vent.
(Lossnay)
(Vane•Vent.(Lossnay))
Vane: Use to set the vertical air direction.
Louver: Use to set the horizontal air direction.
3D i-See sensor: This setting is available only for the air
conditioners that support easy setting function of motion
sensing air direction.
Vent: Use to set the amount of ventilation.
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.
27
Comfort Manual
vane
angle
Vertical air direction
• Sets the vertical airflow direction (vane) of each unit.
28
Horizontal air direction
• Sets the horizontal airfow direction (vane) of each unit.
31
Timer Timer On/Off
timer
Use to set the operation On/Off times.
• Time can be set in 5-minute increments.
* Clock setting is required.
33
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.
36
Weekly timer Use to set the weekly operation On/Off times.
• Up to eight operation patterns can be set for each day.
• Two types of weekly schedules can be set.
* Clock setting is required.
* Not valid when the On/Off timer is enabled.
* 1ºC increments
38
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.
41
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.
* 1ºC increments
44
Energy
saving
Restriction Temp.
range
Use to restrict the preset temperature range.
• Different temperature ranges can be set for different operation
modes.
* 1ºC increments
47
Operation
locked
Use to lock selected functions.
• The locked functions cannot be operated.
50
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.
* 1ºC increments
53

19
Main menu Setting items Setting details Page
Energy
saving
Energy
saving
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.
55
Energy data (for unit
time, month, and
day)
Displays the amount of power consumption during operation.
• Unit time data: Data for the last one-month period can be
displayed in 30-minute units.
• Monthly/daily data: Data for the last 14-month period are
displayed in day- and month-units.
* Data can be deleted.
* Data are obtained based on the power consumption estimated
from the operating state.
58
Initial
setting
Basic
setting
Clock Use to set the current time. 62
Daylight
saving
time
Sets the daylight saving time. 64
Display
setting
Main
display
Use to switch between "Full" and "Basic" modes for the Status
display and the Main display.
• The default setting is “Full.”
66
Black and
white
inversion
setting
Use to invert the colors of the display, turning white
background to black and black characters to white.
67
Contrast •
Brightness
Use to adjust screen contrast and brightness. 69
Language
selection
Use to select the desired language. 70
Service Initialize remote
controller
Use to initialize the remote controller to the factory shipment
status.
72
Remote controller
information
Use to display the remote controller model name, software
version, and serial number.
74
Maintenance 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.
75
Filter information Use to check the filter status.
• The filter sign can be reset.
79

20
Navigating through the menu
@@@Restrictions for the sub remote controller
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.
• Comfort
• Timer
(On/Off timer, Auto-Off timer, Weekly timer, Night
setback, OU silent mode)
• Energy saving
(Auto return, Schedule)
• Energy data (Mr. SLIM only)
• Wi-Fi interface setting (Mr. SLIM only)
• Maintenance
(Cleaning)
• Collect model names and serial No. (Mr. SLIM only)
• Rotation setting (Mr. SLIM only)
• Smooth maintenance (Mr. SLIM only)
• Request code (Mr. SLIM only)
• Function setting (Mr. SLIM)