Daikin Madoka BRC1H82K User guide

Installer and user reference guide
Madoka wired remote controller
BRC1H82W
BRC1H82K
BRC1H82S
+
-

Table of contents
Installer and user reference guide
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BRC1H82W+K+S
Madoka wired remote controller
4P596268-1A – 2022.02
Table of contents
1 About the documentation 5
1.1 About this document ...................................................................................................................................................... 5
1.2 Meaning of warnings and symbols................................................................................................................................. 6
1.3 Installer and user reference guide at a glance............................................................................................................... 6
2 General safety precautions 8
2.1 For the installer............................................................................................................................................................... 8
2.2 For the user..................................................................................................................................................................... 9
3 Specific installer safety instructions 10
For the user 11
4 Remote controller: Overview 12
4.1 About the controller ....................................................................................................................................................... 12
4.2 Buttons............................................................................................................................................................................ 13
4.3 Status icons ..................................................................................................................................................................... 13
4.4 Status indicator ............................................................................................................................................................... 15
5 Operation 16
5.1 Basic usage...................................................................................................................................................................... 16
5.1.1 Home screen................................................................................................................................................... 16
5.1.2 Main menu...................................................................................................................................................... 17
5.2 Operation mode.............................................................................................................................................................. 18
5.2.1 About the operation modes........................................................................................................................... 19
5.2.2 To set the operation mode ............................................................................................................................ 23
5.3 Setpoint........................................................................................................................................................................... 23
5.3.1 About the setpoint ......................................................................................................................................... 24
5.3.2 To set the setpoint ......................................................................................................................................... 26
5.4 Date and time.................................................................................................................................................................. 26
5.4.1 About date and time ...................................................................................................................................... 26
5.4.2 To set date and time....................................................................................................................................... 27
5.5 Airflow ............................................................................................................................................................................. 27
5.5.1 Airflow direction ............................................................................................................................................. 27
5.5.2 Fan speed........................................................................................................................................................ 28
5.6 Ventilation....................................................................................................................................................................... 30
5.6.1 Ventilation mode............................................................................................................................................ 30
5.6.2 Ventilation rate............................................................................................................................................... 30
5.7 Advanced usage .............................................................................................................................................................. 31
6 Maintenance and service 32
6.1 Overview: Maintenance and service .............................................................................................................................. 32
7 Troubleshooting 33
7.1 Overview: Troubleshooting ............................................................................................................................................ 33
7.2 Refrigerant leak detection .............................................................................................................................................. 33
7.2.1 About refrigerant leak detection ................................................................................................................... 33
7.2.2 To stop the leak detection alarm ................................................................................................................... 34
For the installer 35
8 About the box 36
8.1 To unpack the controller ................................................................................................................................................ 36
9 Preparation 37
9.1 Wiring requirements....................................................................................................................................................... 37
9.1.1 To prepare the wiring for installation ............................................................................................................ 37
10 Installation 38
10.1 Overview: Installation ..................................................................................................................................................... 38
10.2 Mounting the controller ................................................................................................................................................. 38
10.2.1 About mounting the controller ...................................................................................................................... 38
10.2.2 To mount the controller................................................................................................................................. 39
10.3 Connecting the electrical wiring..................................................................................................................................... 40
10.3.1 Precautions when connecting the electrical wiring....................................................................................... 40

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10.3.2 To connect the electrical wiring..................................................................................................................... 40
10.4 Closing the controller...................................................................................................................................................... 41
10.4.1 Precautions when closing the controller ....................................................................................................... 41
10.4.2 To close the controller ................................................................................................................................... 41
10.5 Opening the controller ................................................................................................................................................... 42
10.5.1 Precautions when opening the controller ..................................................................................................... 42
10.5.2 To open the controller ................................................................................................................................... 42
11 Starting up the system 43
11.1 Controller designation .................................................................................................................................................... 43
11.1.1 To designate a controller as slave.................................................................................................................. 44
12 Remote controller: Overview 45
12.1 About the controller ....................................................................................................................................................... 45
12.1.1 To configure the controller ............................................................................................................................ 46
12.2 Buttons............................................................................................................................................................................ 46
12.3 Status icons ..................................................................................................................................................................... 47
12.4 Status indicator ............................................................................................................................................................... 48
12.4.1 Behaviour........................................................................................................................................................ 48
13 Operation 50
13.1 Basic usage...................................................................................................................................................................... 50
13.1.1 Screen backlight ............................................................................................................................................. 50
13.1.2 Home screen................................................................................................................................................... 51
13.1.3 Information screen ......................................................................................................................................... 52
13.1.4 Main menu...................................................................................................................................................... 53
13.2 Operation mode.............................................................................................................................................................. 54
13.2.1 About the operation modes........................................................................................................................... 54
13.2.2 To set the operation mode ............................................................................................................................ 58
13.3 Setpoint........................................................................................................................................................................... 58
13.3.1 About the setpoint ......................................................................................................................................... 59
13.3.2 To set the setpoint ......................................................................................................................................... 61
13.4 Date and time.................................................................................................................................................................. 61
13.4.1 About date and time ...................................................................................................................................... 61
13.4.2 To set date and time....................................................................................................................................... 62
13.5 Airflow ............................................................................................................................................................................. 62
13.5.1 Airflow direction ............................................................................................................................................. 62
13.5.2 Fan speed........................................................................................................................................................ 63
13.6 Ventilation....................................................................................................................................................................... 65
13.6.1 Ventilation mode............................................................................................................................................ 65
13.6.2 Ventilation rate............................................................................................................................................... 65
13.7 Advanced usage .............................................................................................................................................................. 66
14 Configuration 67
14.1 Installer menu ................................................................................................................................................................. 67
14.1.1 About the installer menu ............................................................................................................................... 67
14.1.2 Screen settings ............................................................................................................................................... 68
14.1.3 Status indicator settings................................................................................................................................. 69
14.1.4 Field settings................................................................................................................................................... 69
14.1.5 Miscellaneous settings ................................................................................................................................... 76
14.2 Software update ............................................................................................................................................................. 89
14.2.1 About software updates................................................................................................................................. 89
14.2.2 Software update with app.............................................................................................................................. 90
14.2.3 Software update with updating tool.............................................................................................................. 90
15 About the app 92
15.1 Operation and configuration overview .......................................................................................................................... 92
15.2 Pairing.............................................................................................................................................................................. 92
15.2.1 About pairing .................................................................................................................................................. 92
15.2.2 To pair the app with a controller ................................................................................................................... 93
15.2.3 To make a Bluetooth connection................................................................................................................... 93
15.2.4 To terminate the Bluetooth connection ........................................................................................................ 95
15.2.5 To remove bonding information.................................................................................................................... 96
15.3 User access levels............................................................................................................................................................ 98
15.3.1 About user access levels................................................................................................................................. 98
15.3.2 Basic mode...................................................................................................................................................... 98
15.3.3 Advanced mode.............................................................................................................................................. 98
15.3.4 Installer mode................................................................................................................................................. 99
15.4 Demo mode .................................................................................................................................................................... 100
15.4.1 About demo mode ......................................................................................................................................... 100
15.4.2 To launch demo mode.................................................................................................................................... 100

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15.4.3 To exit demo mode ........................................................................................................................................ 100
15.5 Functions......................................................................................................................................................................... 100
15.5.1 Overview: Functions....................................................................................................................................... 100
15.5.2 General ........................................................................................................................................................... 103
15.5.3 Setting migration ............................................................................................................................................ 103
15.5.4 Remote controller settings............................................................................................................................. 104
15.5.5 Energy saving.................................................................................................................................................. 106
15.5.6 Scheduling....................................................................................................................................................... 107
15.5.7 Configuration and operation.......................................................................................................................... 108
15.5.8 Maintenance................................................................................................................................................... 116
16 Maintenance 123
16.1 Maintenance safety precautions.................................................................................................................................... 123
16.2 About maintenance ........................................................................................................................................................ 123
16.3 To remove a warning screen .......................................................................................................................................... 125
16.4 To clean the controller.................................................................................................................................................... 125
16.5 Time to clean filter indication......................................................................................................................................... 125
16.5.1 To remove the Time to clean filter indication ............................................................................................... 125
17 Troubleshooting 126
17.1 Error codes of the indoor unit ........................................................................................................................................ 126
17.2 Refrigerant leak detection .............................................................................................................................................. 128
17.2.1 About refrigerant leak detection ................................................................................................................... 128
17.2.2 To stop the leak detection alarm ................................................................................................................... 128
18 Technical data 130
18.1 Connection diagram........................................................................................................................................................ 130
18.1.1 Typical layout.................................................................................................................................................. 130
18.1.2 Typical layout for group control..................................................................................................................... 130
18.1.3 Controller + DIII central control equipment .................................................................................................. 132
19 Glossary 133

1 | About the documentation
Installer and user reference guide
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BRC1H82W+K+S
Madoka wired remote controller
4P596268-1A – 2022.02
1 About the documentation
In this chapter
1.1 About this document.............................................................................................................................................................. 5
1.2 Meaning of warnings and symbols......................................................................................................................................... 6
1.3 Installer and user reference guide at a glance....................................................................................................................... 6
1.1 About this document
Target audience
Authorised installers + end users
Documentation set
This document is part of a documentation set. The complete set consists of:
▪Installation and operation manual:
-Installation instructions
-Basic operation instructions
▪Installer and user reference guide:
-Extended installation and operation information
▪Declaration of conformity:
INFORMATION: Declaration of conformity
Hereby, Daikin Europe N.V. declares that the radio equipment type BRC1H is in
compliance with the Directive 2014/53/EU. The original declaration of conformity is
available from the BRC1H product pages.
The documentation set is available from the BRC1H product pages:
▪BRC1H82W: https://qr.daikin.eu/?N=BRC1H82W
▪BRC1H82K: https://qr.daikin.eu/?N=BRC1H82K
▪BRC1H82S: https://qr.daikin.eu/?N=BRC1H82S

1 | About the documentation
Installer and user reference guide
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INFORMATION: Madoka Assistant in-app documentation
The controller only allows for basic settings and operation. Advanced settings and
operation are performed via the Madoka Assistant app. For more information, see
the app and its in-app documentation. The Madoka Assistant app is available from
Google Play and the Apple Store.
Latest revisions of the supplied documentation may be available on the regional
Daikin website or via your dealer.
The original documentation is written in English. All other languages are
translations.
1.2 Meaning of warnings and symbols
DANGER
Indicates a situation that results in death or serious injury.
DANGER: RISK OF ELECTROCUTION
Indicates a situation that could result in electrocution.
WARNING
Indicates a situation that could result in death or serious injury.
CAUTION
Indicates a situation that could result in minor or moderate injury.
NOTICE
Indicates a situation that could result in equipment or property damage.
INFORMATION
Indicates useful tips or additional information.
DANGER: RISK OF EXPLOSION
Indicates a situation that could result in explosion.
1.3 Installer and user reference guide at a glance
Chapter Description
About the documentation What documentation exists for the installer and
the user
General safety precautions Safety instructions that you must read before
installing
Specific installer safety
instructions
Safety instructions that the installer must read
before installing
For the user

1 | About the documentation
Installer and user reference guide
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Chapter Description
Remote controller: Overview Overview of the remote controller
Operation How to operate the remote controller
Maintenance and service How to maintain and service the remote
controller
Troubleshooting What to do in case of problems
For the installer
About the box How to unpack the remote controller and
remove the accessories
Preparation What to do and know before going on‑site
Installation What to do and know to install the remote
controller
Starting up the system How to start up the remote controller
Remote controller: Overview Overview of the remote controller
Configuration What to do and know to configure the system
after it is installed
About the app What to do and know to commission the remote
controller after it is configured
Maintenance How to maintain the remote controller
Troubleshooting What to do in case of problems
Technical data Specifications of the system
Glossary Definition of terms

2 | General safety precautions
Installer and user reference guide
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2 General safety precautions
In this chapter
2.1 For the installer....................................................................................................................................................................... 8
2.2 For the user............................................................................................................................................................................. 9
2.1 For the installer
The precautions described in this document cover very important topics, follow
them carefully.
INFORMATION
This controller is an option and cannot be used standalone. Also see the installation
and operation manual of the indoor and outdoor units.
WARNING
Improper installation or attachment of equipment or accessories could result in
electrical shock, short-circuit, leaks, fire or other damage to the equipment. ONLY
use accessories, optional equipment and spare parts made or approved by Daikin.
WARNING
All field wiring and components MUST be installed by a licensed electrician and
MUST comply with the applicable legislation.
NOTICE
The remote controller MUST be mounted indoors.
NOTICE
When the controller is used as room thermostat, select an installation location where
the average temperature in the room can be detected.
Do NOT install the controller in the following places:
▪In places where it is exposed to direct sunlight.
▪In places where it is near a heat source.
▪In places that are affected by outside air or air draught due to e.g. door opening/
closing.
▪In places where the display can easily get dirty.
▪In places where there is NO easy access to the controls.
▪In places with temperatures <–10°C and >50°C.
▪In places where the relative humidity is >95%.
▪In places where there is machinery that emits electromagnetic waves.
Electromagnetic waves may disturb the control system, and cause malfunction of
the equipment.
▪In places where it may be exposed to water, or in generally moist areas.
If you are NOT sure how to install or operate the unit, contact your dealer.
After finishing installation:

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▪Conduct a trial operation to check for faults.
▪Explain the user how to operate the controller.
▪Ask the user to store the manual for future reference.
INFORMATION
Consult your dealer regarding the relocation and reinstallation of the controller.
2.2 For the user
WARNING
To clean the controller, do NOT use organic solvents, such
as paint thinner.
WARNING
Do NOT use flammable materials (e.g. hairspray or
insecticide) near the controller.
WARNING
To prevent electric shocks or fire:
▪Do NOT operate the controller with wet hands.
▪Do NOT disassemble the controller and touch interior
parts. Contact your dealer.
▪Do NOT modify or repair the controller. Contact your
dealer.
▪Do NOT relocate or reinstall the controller by yourself.
Contact your dealer.
WARNING
Do NOT play with the unit or its remote controller.
Accidental operation by a child may result in impairment
of bodily functions and harm health.

3 | Specific installer safety instructions
Installer and user reference guide
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4P596268-1A – 2022.02
3 Specific installer safety instructions
Always observe the following safety instructions and regulations.
CAUTION
NEVER touch the internal parts of the controller.
CAUTION
When closing the controller, be careful not to pinch the wiring.
CAUTION
Before starting up the system, make sure:
▪The indoor and outdoor unit wiring is completed.
▪The switch box covers of the indoor and outdoor units are closed.
CAUTION
When connecting the controller to the indoor unit, make sure the indoor unit
switchbox and transmission wiring are not connected.
WARNING
All field wiring and components MUST be installed by a licensed electrician and
MUST comply with the applicable legislation.
WARNING
Before carrying out any maintenance or repair activities, stop system operation with
the controller, and turn off the power supply circuit breaker. Possible consequence:
electrical shock or injury.
WARNING
Do NOT wash the remote controller. Possible consequence: electric leakage,
electrical shock, or fire.

For the user
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For the user

4 | Remote controller: Overview
Installer and user reference guide
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4 Remote controller: Overview
In this chapter
4.1 About the controller ............................................................................................................................................................... 12
4.2 Buttons.................................................................................................................................................................................... 13
4.3 Status icons............................................................................................................................................................................. 13
4.4 Status indicator....................................................................................................................................................................... 15
4.1 About the controller
Depending on configuration, the controller is operable in either one of three
modes. Each mode offers different controller functionality.
Mode Functionality
Normal The controller is fully functional.
All functionality described under
"5Operation"[416] is available.
The controller can be a master or a
slave controller.
Alarm only The controller only acts as leak
detection alarm for a single indoor unit.
No functionality described under
"5Operation"[416] is available.
For information on the leak detection
alarm, see "7.2Refrigerant leak
detection"[433].
The controller can be a master or a
slave controller.
Supervisor The controller only acts as leak
detection alarm for the whole system,
i.e. multiple indoor units and their
respective controllers. This mode is
intended for a controller that is to be
used in a supervision location, e.g. the
reception desk of a hotel.
No functionality described under
"5Operation"[416] is available.
For information on the leak detection
alarm, see "7.2Refrigerant leak
detection"[433].
The controller can only be a slave
controller.
For more information on how to set the controller to be operable in a specific
mode, see "12.1.1 To configure the controller" [4 46]. When using “Supervisor”
mode, it is important to set the supervised room address in order to know for
which indoor unit the refrigerant leak alarm occurs. See "Supervised room
address"[4116] for more inormation.

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4.2 Buttons
+
-
c b d
a
a ON/OFF
▪When OFF, press to turn ON the system.
▪When ON, press to turn OFF the system.
b ENTER/ACTIVATE /SET
▪From the home screen, enter the main menu.
▪From the main menu, enter one of the submenus.
▪From their respective submenu, activate an operation/ventilation mode.
▪In one of the submenus, confirm a setting.
c CYCLE/ADJUST
▪Cycle left.
▪Adjust a setting (default: decrease).
d CYCLE/ADJUST
▪Cycle right.
▪Adjust a setting (default: increase).
4.3 Status icons
Icon Description
System operation ON. Indicates that the system is in operation.
System operation OFF. Indicates that the system is NOT in
operation.
Bluetooth.(1) Indicates that the controller is communicating with
a mobile device, for use with the Madoka Assistant app.
Lock. Indicates that a function or operation mode is locked and
therefore cannot be used or selected.
Centralised control. Indicates that the system is controlled by
central control equipment (optional accessory) and that control
of the system by the controller is limited.
Changeover under centralised control. Indicates that the
cooling/heating changeover is under centralised control by
another indoor unit, or by an optional cool/ heat selector that is
connected to the outdoor unit.
(1) The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and use of such marks
by Daikin Europe N.V. is under license. Other trademarks and trade names are those of their respective owners.

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Icon Description
Defrost/Hot start. Indicates that the defrost/hot start mode is
active.
Schedule/Timer. Indicates that the system operates according to
a schedule, or that the OFF timer is enabled.
Time not set. Indicates that controller's time is not set.
Self-cleaning filter operation. Indicates that self-cleaning filter
operation is active.
Quick Start. Indicates that Quick Start mode is active (Sky Air
only).
Test operation. Indicates that Test Operation mode is active (Sky
Air only).
Inspection. Indicates that the indoor or outdoor unit is being
inspected.
Periodic inspection. Indicates that the indoor or outdoor unit is
being inspected.
Backup. Indicates that in the system an indoor unit is set as
backup indoor unit.
Individual airflow direction. Indicates that the individual airflow
direction setting is enabled.
Information. Indicates that the system has a message to convey.
To see the message, go to the information screen.
Warning. Indicates that an error occurred, or that an indoor unit
component needs to be maintained.
Power consumption limit. Indicates that the system's power
consumption is being limited, and that it is running with
restricted capacity.
End of power consumption limit. Indicates that the system's
power consumption is no longer being limited, and that it is no
longer running with restricted capacity.
Rotation. Indicates that Rotation mode is active.
Setback. Indicates that the indoor unit is operating under
setback conditions.
Ventilation. Indicates that a heat reclaim ventilation unit is
connected.
INFORMATION
▪For information on the operation mode and ventilation mode icons, see
"5.2Operation mode"[418] and "5.6.1Ventilation mode"[430] respectively.
▪Most icons are related to things set in the Madoka Assistant app. For more
information, see the app.

4 | Remote controller: Overview
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4.4 Status indicator
+
-
a
aStatus indicator

5 | Operation
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5 Operation
In this chapter
5.1 Basic usage.............................................................................................................................................................................. 16
5.1.1 Home screen .......................................................................................................................................................... 16
5.1.2 Main menu ............................................................................................................................................................. 17
5.2 Operation mode ..................................................................................................................................................................... 18
5.2.1 About the operation modes................................................................................................................................... 19
5.2.2 To set the operation mode .................................................................................................................................... 23
5.3 Setpoint................................................................................................................................................................................... 23
5.3.1 About the setpoint ................................................................................................................................................. 24
5.3.2 To set the setpoint ................................................................................................................................................. 26
5.4 Date and time ......................................................................................................................................................................... 26
5.4.1 About date and time .............................................................................................................................................. 26
5.4.2 To set date and time .............................................................................................................................................. 27
5.5 Airflow..................................................................................................................................................................................... 27
5.5.1 Airflow direction..................................................................................................................................................... 27
5.5.2 Fan speed ............................................................................................................................................................... 28
5.6 Ventilation............................................................................................................................................................................... 30
5.6.1 Ventilation mode.................................................................................................................................................... 30
5.6.2 Ventilation rate ...................................................................................................................................................... 30
5.7 Advanced usage...................................................................................................................................................................... 31
5.1 Basic usage
5.1.1 Home screen
Home screen mode
Depending on configuration, the controller either has a standard or a detailed
home screen. While the standard home screen gives you only limited information,
the detailed home screen gives you all kinds of information through status icons.
After a period of operation inactivity, the controller will always revert to the home
screen.
Standard Detailed
19
When the Home screen mode is Detailed, it is possible to either visualise the
indoor temperature or the CO2 concentration value as measured by a unit
equipped with a CO2 sensor. For more information, see "Screen"[4104].
Indoor temperature CO2 concentration value
19
Home screen operation
In certain conditions, the controller allows you to perform actions from the home
screen.

5 | Operation
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Condition Action
The system is running in Cooling,
Heating, or Auto operation mode.
Change the setpoint
The system is composed of ONLY heat
reclaim ventilation units.
Change the ventilation rate
INFORMATION
▪Depending on configuration, the home screen displays the setpoint either as a
numerical value, or as a symbol. For more information, see "5.3.1 About the
setpoint"[424].
▪In case the home screen displays the setpoint as a symbol, then it will only display
the status icons of the standard home screen mode, even when the controller is
in detailed home screen mode.
INFORMATION
The controller is equipped with a power saving function that causes the screen to go
blank after a period of inactivity. To make the screen light up again, press any button.
5.1.2 Main menu
From the home screen, press to enter the main menu. Use and to cycle
through the menus. Press again to enter one of the menus.
Menu Description
Operation mode. Set the operation mode.
Date and time. Make date and time settings.
Airflow direction. Set the indoor unit airflow direction.
Fan speed. Set the indoor unit fan speed.
Ventilation mode. Set the ventilation operation mode.
Ventilation rate. Set the fan speed for ventilation operation.
Bluetooth. Activate Bluetooth to control the system with the
Madoka Assistant app, and/or to perform a remote controller
software update.

5 | Operation
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INFORMATION
▪Depending on the type of indoor unit you are operating, more or less menus may
be available.
▪In the main menu, the icon for each menu reflects the current active setting or
mode. When operating the controller, the menu you navigate through can look
different from that represented in this manual.
▪The controller only allows for basic operation of the system. For advanced
operation (setback, schedule timer, …), see the Madoka Assistant app.
INFORMATION
It is possible that menus are locked. When this is the case, they appear crossed-out
in the main menu, and get accompanied by a lock icon. The locking of functions
happens through the Madoka Assistant app. For more information, see the Madoka
Assistant app and "Function lock"[4113].
5.2 Operation mode
The indoor unit can operate in various operation modes.
Icon Operation mode
Cooling. In this mode, cooling will be activated as required by the
setpoint, or by Setback operation.
Heating. In this mode, heating will be activated as required by
the setpoint, or by Setback operation.
Fan Only. In this mode, air circulates without heating or cooling.
Dry. In this mode, the air humidity will be lowered with a
minimal temperature decrease.
The temperature and fan speed are controlled automatically and
cannot be controlled by the controller.
Dry operation will not function if the room temperature is too
low.
Ventilation.In this mode, the space gets ventilated, but not
cooled or heated.
Air Clean. In this mode, the optional air cleaning unit operates.
Ventilation + Air Clean. Combination of ventilation and air clean
operation.
Auto. In Auto mode, the indoor unit automatically switches
between heating and cooling mode, as required by the setpoint.

5 | Operation
Installer and user reference guide
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INFORMATION
Depending on the indoor unit, more or less operation modes are available.
5.2.1 About the operation modes
INFORMATION
If the indoor unit is a cooling-only model, it can only be set to run in Cooling, Fan
only, or Dry operation mode.
INFORMATION
When operation modes are not available in the operation mode menu, it is
additionally possible that they are locked. The locking of operation modes occurs
through the Madoka Assistant app. For more information, see the Madoka Assistant
app and "Function lock"[4113].
INFORMATION
If the operation mode changeover of an indoor unit is under centralised control
('changeover under centralised control' status icon blinking in the home screen),
then it is NOT possible to change the operation mode of that indoor unit. For more
information, see "Cooling/Heating masterhood"[486].
Cooling
If the outdoor air temperature is high, it can take some time until the indoor room
temperature reaches the setpoint temperature.
When the indoor room temperature is low, and the indoor unit is set to run in
Cooling operation mode, the indoor unit can enter Defrost operation mode first
(i.e. Heating operation), this to prevent a decrease of the system's cooling capacity
due to frost on the heat exchanger. For more information, see "Heating"[419].
The indoor unit can run in Cooling operation mode because it is operating under
Setback conditions. For more information, see "Setback"[4110].
Heating
When running in Heating operation mode, the system requires a longer time to
reach the setpoint temperature than when running in Cooling operation mode. To
make up for this, it is recommended to let the system start operation in advance by
making use of the timer function.
The indoor unit can run in Heating operation mode because it is operating under
Setback conditions. For more information, see "Setback"[4110].
To prevent cold drafts and a reduction of the system's heating capacity, the system
can run in the following special heating operation modes:

5 | Operation
Installer and user reference guide
20
BRC1H82W+K+S
Madoka wired remote controller
4P596268-1A – 2022.02
Operation Description
Defrost To prevent the loss of heating capacity
due to frost accumulation in the outdoor
unit, the system will automatically
switch to defrost operation.
During defrost operation, the indoor
unit fan will stop operation, and the
following icon will appear on the home
screen:
The system will resume normal
operation after approximately 6 to 8
minutes.
Hot start (VRV only) During hot start, the indoor unit fan will
stop operation, and the following icon
will appear on the home screen:
INFORMATION
When the system is stopped while the indoor unit is running in Heating operation
mode, the fan will continue to operate for approximately 1minute, this to get out
any heat remaining in the indoor unit.
INFORMATION
▪The lower the outdoor air temperature, the lower the heating capacity. If the
system's heating capacity is insufficient, it is recommended to include another
heating appliance into the setup (if you use a combustion appliance, ventilate the
room regularly. Also, do not use the heating appliance in places where it is
exposed to the airflow of the indoor unit).
▪The indoor unit is of the hot air circulation type. As a result, after operation start,
it takes the indoor unit some time to warm up the room.
▪The indoor unit fan will automatically operate until the indoor temperature of the
system rises to a certain level.
▪When hot air stays under the ceiling and your feet feel cold, it is recommended to
include a circulator into the setup.
Dry
NOTICE
To prevent water leakage or system failure, do NOT turn off the system immediately
after indoor unit operation. Before turning off the system, wait until the drain pump
finishes discharging any water remaining in the indoor unit (approximately 1minute).
INFORMATION
To ensure a smooth start, do not turn off the system while it is operating.