Daikin BRR9B1V1 Installation manuals
Installation manual
Communication box
BRR9B1V1
Table of contents
Table of contents
1 About the documentation 3
1.1 About this document ...................................................................................................................................................... 3
2 General safety precautions 4
2.1 About the documentation .............................................................................................................................................. 4
2.1.1 Meaning of warnings and symbols ................................................................................................................ 4
2.2 For the installer............................................................................................................................................................... 5
2.2.1 General ........................................................................................................................................................... 5
2.2.2 Installation site ............................................................................................................................................... 6
2.2.3 Electrical ......................................................................................................................................................... 7
3 Specific installer safety instructions 9
4 About the box 10
4.1 Communication box........................................................................................................................................................ 10
4.1.1 To remove the accessories from the communication box ............................................................................ 10
5 About the communication box 11
5.1 Identification ................................................................................................................................................................... 11
5.1.1 Identification label: Communication box ....................................................................................................... 11
6 Unit installation 12
6.1 Preparing the installation site......................................................................................................................................... 12
6.1.1 Installation site requirements of the communication box ............................................................................ 12
6.2 Opening and closing the unit.......................................................................................................................................... 12
6.2.1 To open the communication box ................................................................................................................... 12
6.2.2 To close the communication box ................................................................................................................... 13
6.3 Installing the communication box .................................................................................................................................. 13
6.3.1 Precautions when installing the communication box ................................................................................... 13
6.3.2 To install the communication box .................................................................................................................. 13
7 Electrical installation 14
7.1 General overview of the field wiring .............................................................................................................................. 14
7.2 Field wiring: Overview .................................................................................................................................................... 15
7.3 Guidelines when connecting the electrical wiring ......................................................................................................... 16
7.4 Specifications of standard wiring components .............................................................................................................. 16
7.5 To connect the electrical wiring on the communication box ........................................................................................ 17
7.6 To connect the transmission wiring ............................................................................................................................... 18
7.6.1 Between communication box and outdoor unit ........................................................................................... 18
7.6.2 Between communication box and monitoring system.................................................................................. 18
7.7 To fix the wiring cables with cable ties........................................................................................................................... 19
8 Configuration 20
8.1 About the PCBs ............................................................................................................................................................... 20
8.2 Setting the addresses of outdoor units and indoor units .............................................................................................. 20
8.3 To set the addresses of the outdoor unit and capacity up unit..................................................................................... 21
8.4 To set the addresses of the indoor units........................................................................................................................ 22
8.5 Configuring the communication box.............................................................................................................................. 22
8.5.1 To configure the communication box PCB for the indoor units.................................................................... 23
8.5.2 To configure the communication box PCB for the outdoor unit and capacity up unit................................. 24
9 Commissioning 28
10 Troubleshooting 29
10.1 Troubleshooting for PCB for indoor unit communication ............................................................................................. 29
10.2 Troubleshooting for PCB for outdoor unit and capacity up unit communication......................................................... 29
11 Technical data 33
11.1 Wiring diagram: Communication box............................................................................................................................. 33
12 Glossary 34
Installation manual
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BRR9B1V1
Communication box
4P617761-1B – 2020.10
1 About the documentation
1.1 About this document
Target audience
Authorised installers
WARNING
Make sure installation, servicing, maintenance, repair and applied materials follow
the instructions from Daikin and, in addition, comply with applicable legislation and
are performed by qualified persons only. In Europe and areas where IEC standards
apply, EN/IEC 60335-2-40 is the applicable standard.
Documentation set
This document is part of a documentation set. The complete set consists of:
▪ Installation manual:
- Installation instructions, configuration,…
1 | About the documentation
- Format: Paper (supplied in the kit) + digital files on http://
www.daikineurope.com/support-and-manuals/product-information/
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.
Technical engineering data
▪ A subset of the latest technical data is available on the regional Daikin website
(publicly accessible).
▪ The full set of latest technical data is available on the Daikin Business Portal
(authentication required).
BRR9B1V1
Communication box
4P617761-1B – 2020.10
Installation manual
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2 | General safety precautions
2 General safety precautions
2.1 About the documentation
▪ The original documentation is written in English. All other languages are
translations.
▪ The precautions described in this document cover very important topics, follow
them carefully.
▪ The installation of the system, and all activities described in the installation
manual and in the installer reference guide MUST be performed by an authorised
installer.
2.1.1 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.
DANGER: RISK OF BURNING/SCALDING
Indicates a situation that could result in burning/scalding because of extreme hot or
cold temperatures.
DANGER: RISK OF EXPLOSION
Indicates a situation that could result in explosion.
WARNING
Indicates a situation that could result in death or serious injury.
WARNING: FLAMMABLE MATERIAL
CAUTION
Indicates a situation that could result in minor or moderate injury.
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NOTICE
Indicates a situation that could result in equipment or property damage.
INFORMATION
Indicates useful tips or additional information.
Symbols used on the unit:
BRR9B1V1
Communication box
4P617761-1B – 2020.10
Symbol Explanation
Before installation, read the installation and operation
manual, and the wiring instruction sheet.
Before performing maintenance and service tasks, read the
service manual.
For more information, see the installer and user reference
guide.
The unit contains rotating parts. Be careful when servicing or
inspecting the unit.
Symbols used in the documentation:
Symbol Explanation
Indicates a figure title or a reference to it.
Example: " 1–3 Figure title" means "Figure 3 in chapter 1".
Indicates a table title or a reference to it.
Example: " 1–3 Table title" means "Table 3 in chapter 1".
2 | General safety precautions
2.2 For the installer
2.2.1 General
If you are NOT sure how to install or operate the unit, contact your dealer.
DANGER: RISK OF BURNING/SCALDING
▪ Do NOT touch the refrigerant piping, water piping or internal parts during and
immediately after operation. It could be too hot or too cold. Give it time to return
to normal temperature. If you must touch it, wear protective gloves.
▪ Do NOT touch any accidental leaking refrigerant.
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
Make sure installation, testing and applied materials comply with applicable
legislation (on top of the instructions described in the Daikin documentation).
BRR9B1V1
Communication box
4P617761-1B – 2020.10
CAUTION
Wear adequate personal protective equipment (protective gloves, safety glasses,…)
when installing, maintaining or servicing the system.
WARNING
Tear apart and throw away plastic packaging bags so that nobody, especially
children, can play with them. Possible risk: suffocation.
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2 | General safety precautions
In accordance with the applicable legislation, it might be necessary to provide a
logbook with the product containing at least: information on maintenance, repair
work, results of tests, stand-by periods,…
WARNING
Provide adequate measures to prevent that the unit can be used as a shelter by small
animals. Small animals that make contact with electrical parts can cause
malfunctions, smoke or fire.
CAUTION
Do NOT touch the air inlet or aluminium fins of the unit.
CAUTION
▪ Do NOT place any objects or equipment on top of the unit.
▪ Do NOT sit, climb or stand on the unit.
NOTICE
Works executed on the outdoor unit are best done under dry weather conditions to
avoid water ingress.
2.2.2 Installation site
Also, at least, following information MUST be provided at an accessible place at the
product:
▪ Instructions for shutting down the system in case of an emergency
▪ Name and address of fire department, police and hospital
▪ Name, address and day and night telephone numbers for obtaining service
In Europe, EN378 provides the necessary guidance for this logbook.
▪ Provide sufficient space around the unit for servicing and air circulation.
▪ Make sure the installation site withstands the weight and vibration of the unit.
▪ Make sure the area is well ventilated. Do NOT block any ventilation openings.
▪ Make sure the unit is level.
Do NOT install the unit in the following places:
▪ In potentially explosive atmospheres.
▪ 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 there is a risk of fire due to the leakage of flammable gases
(example: thinner or gasoline), carbon fibre, ignitable dust.
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▪ In places where corrosive gas (example: sulphurous acid gas) is produced.
Corrosion of copper pipes or soldered parts may cause the refrigerant to leak.
BRR9B1V1
Communication box
4P617761-1B – 2020.10
2.2.3 Electrical
2 | General safety precautions
DANGER: RISK OF ELECTROCUTION
▪ Turn OFF all power supply before removing the switch box cover, connecting
electrical wiring or touching electrical parts.
▪ Disconnect the power supply for more than 10minutes, and measure the voltage
at the terminals of main circuit capacitors or electrical components before
servicing. The voltage MUST be less than 50VDC before you can touch electrical
components. For the location of the terminals, see the wiring diagram.
▪ Do NOT touch electrical components with wet hands.
▪ Do NOT leave the unit unattended when the service cover is removed.
WARNING
If NOT factory installed, a main switch or other means for disconnection, having a
contact separation in all poles providing full disconnection under overvoltage
categoryIII condition, MUST be installed in the fixed wiring.
WARNING
▪ ONLY use copper wires.
▪ Make sure the field wiring complies with the applicable legislation.
▪ All field wiring MUST be performed in accordance with the wiring diagram
supplied with the product.
▪ NEVER squeeze bundled cables and make sure they do NOT come in contact with
the piping and sharp edges. Make sure no external pressure is applied to the
terminal connections.
▪ Make sure to install earth wiring. Do NOT earth the unit to a utility pipe, surge
absorber, or telephone earth. Incomplete earth may cause electrical shock.
▪ Make sure to use a dedicated power circuit. NEVER use a power supply shared by
another appliance.
▪ Make sure to install the required fuses or circuit breakers.
▪ Make sure to install an earth leakage protector. Failure to do so may cause
electrical shock or fire.
▪ When installing the earth leakage protector, make sure it is compatible with the
inverter (resistant to high frequency electric noise) to avoid unnecessary opening
of the earth leakage protector.
BRR9B1V1
Communication box
4P617761-1B – 2020.10
CAUTION
▪ When connecting the power supply: connect the earth cable first, before making
the current-carrying connections.
▪ When disconnecting the power supply: disconnect the current-carrying cables
first, before separating the earth connection.
▪ The length of the conductors between the power supply stress relief and the
terminal block itself must be as such that the current-carrying wires are tautened
before the earth wire is in case the power supply is pulled loose from the stress
relief.
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2 | General safety precautions
NOTICE
Precautions when laying power wiring:
▪ Do NOT connect wiring of different thicknesses to the power terminal block (slack
in the power wiring may cause abnormal heat).
▪ When connecting wiring which is the same thickness, do as shown in the figure
above.
▪ For wiring, use the designated power wire and connect firmly, then secure to
prevent outside pressure being exerted on the terminal board.
▪ Use an appropriate screwdriver for tightening the terminal screws. A screwdriver
with a small head will damage the head and make proper tightening impossible.
▪ Over-tightening the terminal screws may break them.
WARNING
▪ After finishing the electrical work, confirm that each electrical component and
terminal inside the electrical components box is connected securely.
▪ Make sure all covers are closed before starting up the unit.
NOTICE
Only applicable if the power supply is three‑phase, and the compressor has an ON/
OFF starting method.
If there exists the possibility of reversed phase after a momentary black out and the
power goes on and off while the product is operating, attach a reversed phase
protection circuit locally. Running the product in reversed phase can break the
compressor and other parts.
Installation manual
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BRR9B1V1
Communication box
4P617761-1B – 2020.10
3 | Specific installer safety instructions
3 Specific installer safety instructions
Always observe the following safety instructions and regulations.
WARNING
Installation shall be done by an installer, the choice of materials and installation shall
comply with the applicable legislation. In Europe, EN378 is the applicable standard.
WARNING
Provide adequate measures to prevent that the unit can be used as a shelter by small
animals. Small animals that make contact with electrical parts can cause
malfunctions, smoke or fire.
WARNING
▪ Make sure the electrical wiring does NOT obstruct correct reattachment of the
communication box cover. Incorrect reattachment of the communication box
cover might result in electrical shocks, fire, or terminal overheating.
▪ Do NOT connect the power supply wires to the terminal block for the
transmission wiring. Incorrect connection is very dangerous, results in damage,
and possible burnout of the electrical components.
▪ Do NOT use stranded wires with a solder finish applied. A loose wire or other
abnormalities might cause abnormal heating.
WARNING
▪ When opening the front plate of an outdoor unit during operation, be careful of a
rotating fan. The fan continues rotating for a while even after the operation is
stopped.
▪ Before turning ON the power supply, make sure that the operation switch of the
outdoor unit is turned OFF. You can check this via the inspection hole of the
electrical component box (middle) of the outdoor unit.
▪ After turning ON the power supply, operate the push buttons and check the LED
indication via the inspection hole of the electrical component box (middle) of the
outdoor unit. Operating with the cover open might cause an electrical shock.
▪ For more information on how to configure the monitoring system (field supply),
see the manual of the supplier.
WARNING
▪ Do NOT turn ON the power when the communication box cover is open. An
electrical shock might occur.
▪ Before turning ON the power, make sure that the communication box cover is
closed.
CAUTION: Precautions when setting the slave address
▪ Do NOT set the same slave address for devices connected to the Modbus master
device.
▪ Apart from the slave address set in the communication box, there are 2 other
slave addresses that cannot be set. When the slave address on the PCB for the
outdoor unit (A2P) is set to "A", slave addresses "A+1" and "A+2" CANNOT be set.
Slave address "A" is used for the outdoor unit, "A+1" is used for the capacity up
unit, and "A+2" may NOT be used.
BRR9B1V1
Communication box
4P617761-1B – 2020.10
Installation manual
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4 | About the box
×1
×2
4 About the box
4.1 Communication box
4.1.1 To remove the accessories from the communication box
a Installation manual
b Cable tie (2×)
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BRR9B1V1
Communication box
4P617761-1B – 2020.10
5 | About the communication box
5 About the communication box
Communication box (BRR9B1V1)
Install the modbus communication box to fully integrate your CO2 Conveni-Pack
system with building control automation networks and other monitoring systems.
NOTICE
ALWAYS check with the reference guide of the installed outdoor unit if the
communication box is compatible with it. Do NOT connect the communication box to
any other unit.
Also see: "8.1About the PCBs"[420].
General names and product names
In this manual, we use the following names:
General name Product name
Communication box BRR9B1V1
Outdoor unit Main outdoor unit. For example:
LRYEN10A7Y1
Capacity up unit Additional outdoor unit for extra
5.1 Identification
5.1.1 Identification label: Communication box
Location
refrigeration capacity. For example:
LRNUN5A7Y1
BRR9B1V1
Communication box
4P617761-1B – 2020.10
Installation manual
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