Daikin LRYEN10A7Y1, LRNUN5A7Y1 Operation manuals
Installation and operation manual
CO₂ Conveni-Pack outdoor unit and capacity up unit
LRYEN10A7Y1
LRNUN5A7Y1
Installation and operation manual
CO₂ Conveni-Pack outdoor unit and capacity up unit
English
(mm)
≥300 ≥500
≥500
≥10
B
B1 B2 B3
≥100 ≥500
≥500
≥50
≥300
≥200
a
a
C1 C2 C3
C
a
≥300 ≥500
≥20
≥10 ≥50
≥100 ≥500
≥100
≥300
≥400
≥200
a
A
YX
h2
H2
500
h1
H1
1500
1
Table of contents
Table of contents
1 About the documentation 3
1.1 About this document.................................................................. 3
2 Specific installer safety instructions 4
For the user 5
3 User safety instructions 5
3.1 General...................................................................................... 6
3.2 Instructions for safe operation ................................................... 6
4 About the system 8
4.1 System layout............................................................................ 8
5 Operation 8
5.1 Operation range ........................................................................ 8
5.2 Design pressure ........................................................................ 8
6 Maintenance and service 9
6.1 About the refrigerant.................................................................. 9
6.2 Recommended maintenance and inspection ............................ 9
7 Troubleshooting 9
7.1 Error codes: Overview............................................................... 10
8 Relocation 10
9 Disposal 10
For the installer 10
10 About the box 10
10.1 Outdoor unit............................................................................... 10
10.1.1 To unpack the outdoor unit ......................................... 10
10.1.2 To handle the outdoor unit .......................................... 10
10.1.3 To remove the accessories from the outdoor unit....... 11
11 About the units and options 11
11.1 About the outdoor unit ............................................................... 11
11.1.1 Labels on outdoor unit ................................................ 12
11.2 System layout ............................................................................ 12
11.3 Indoor unit constraints ............................................................... 13
12 Unit installation 13
12.1 Preparing the installation site .................................................... 13
12.1.1 Installation site requirements of the outdoor unit ........ 13
12.1.2 Additional installation site requirements of the
outdoor unit in cold climates ....................................... 13
12.1.3 Additional installation site requirements for CO₂
refrigerant.................................................................... 13
12.2 Opening and closing the unit ..................................................... 14
12.2.1 To open the outdoor unit ............................................. 14
12.2.2 To open the electrical component box of the outdoor
unit .............................................................................. 15
12.2.3 To close the outdoor unit ............................................ 15
12.3 Mounting the outdoor unit.......................................................... 16
12.3.1 To provide the installation structure ............................ 16
12.3.2 To install the outdoor unit............................................ 17
12.3.3 To provide drainage .................................................... 17
13.1.5 To select refrigerant branch kits................................... 20
13.1.6 To select expansion valves for refrigeration ................ 20
13.2 Using stop valves and service ports ........................................... 20
13.2.1 To handle the stop valve .............................................. 20
13.2.2 To handle the service port ........................................... 21
13.2.3 Tightening torques ....................................................... 21
13.3 Connecting the refrigerant piping ............................................... 22
13.3.1 To remove the spun pipes ........................................... 22
13.3.2 To connect the refrigerant piping to the outdoor unit ... 22
13.3.3 Guidelines to connect T-joints...................................... 23
13.3.4 Guidelines to install a dryer.......................................... 23
13.3.5 Guidelines to install safety valves ................................ 23
13.4 Checking the refrigerant piping .................................................. 24
13.4.1 Checking refrigerant piping: Setup............................... 24
13.4.2 To perform a leak test .................................................. 24
13.4.3 To perform vacuum drying ........................................... 24
13.5 Insulating the refrigerant piping .................................................. 24
14 Electrical installation 25
14.1 About electrical compliance........................................................ 25
14.2 Field wiring: Overview ................................................................ 26
14.3 Guidelines when knocking out knockout holes........................... 27
14.4 Guidelines when connecting the electrical wiring ....................... 27
14.5 Specifications of standard wiring components ........................... 27
14.6 Connections to the outdoor unit ................................................. 28
14.6.1 Low voltage wiring – Outdoor unit................................ 28
14.6.2 High voltage wiring – Outdoor unit ............................... 29
14.7 Connections to the capacity up unit ........................................... 29
14.7.1 Low voltage wiring – Capacity up unit.......................... 30
14.7.2 High voltage wiring – Capacity up unit ......................... 30
15 Charging refrigerant 31
15.1 Precautions when charging refrigerant....................................... 31
15.2 To determine additional refrigerant amount ............................... 32
15.3 To charge refrigerant .................................................................. 32
16 Configuration 33
16.1 Making field settings ................................................................... 33
16.1.1 About making field settings .......................................... 33
16.1.2 To access the field setting components ....................... 33
16.1.3 Field setting components ............................................. 33
16.1.4 To access mode 1 or 2 ................................................ 33
17 Commissioning 34
17.1 Precautions when commissioning .............................................. 34
17.2 Checklist before commissioning ................................................. 34
17.3 About the test run ....................................................................... 35
17.4 To perform a test run (7-segment display) ................................. 35
17.4.1 Test run checks............................................................ 35
17.4.2 Correcting after abnormal completion of the test run ... 36
17.5 Logbook...................................................................................... 36
18 Troubleshooting 37
18.1 Solving problems based on error codes ..................................... 37
18.1.1 Error codes: Overview ................................................. 37
19 Technical data 40
19.1 Piping diagram: Outdoor unit...................................................... 40
19.2 Piping diagram: Capacity up unit................................................ 41
19.3 Wiring diagram: Outdoor unit ..................................................... 42
1 About the documentation
13 Piping installation 17
13.1 Preparing refrigerant piping ....................................................... 17
13.1.1 Refrigerant piping requirements.................................. 17
13.1.2 Refrigerant piping material .......................................... 17
13.1.3 Refrigerant piping length and height difference .......... 18
13.1.4 To select the piping size ............................................. 18
LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit and capacity up unit
4P605461-1B – 2020.08
1.1 About this document
Target audience
Authorised installers + end users
Installation and operation manual
3
2 Specific installer safety instructions
INFORMATION
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.
Documentation set
This document is part of a documentation set. The complete set
consists of:
▪ General safety precautions:
▪ Safety instructions that you must read before installing
▪ Format: Paper (in the box of the outdoor unit)
▪ Installation and operation manual of the outdoor unit:
▪ Installation and operation instructions
▪ Format: Paper (in the box of the outdoor unit)
▪ Installer and user reference guide of the outdoor unit:
▪ Preparation of the installation, reference data,…
▪ Detailed step-by-step instructions and background information
for basic and advanced usage
▪ Format: 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.
Installation site (see "12.1Preparing the installation
site"[413])
CAUTION
Appliance not accessible to the general public, install it in a
secured area, protected from easy access.
This unit, both indoor and outdoor, is suitable for
installation in a commercial and light industrial
environment.
WARNING
All installed safety valves MUST ventilate to the outdoor
space and NOT into a closed area.
CAUTION
If the safety valve operates, CO2 gas may concentrate
inside the casing of the outdoor unit. Therefore, you should
ALWAYS take a distance for your own safety. You can
close the outdoor unit if your portable CO2 detector
confirmed that the concentration of CO2 is at an acceptable
level. For example, if 7 kg CO2 is released inside the
casing, it takes around 5minutes until the concentration of
CO2 is low enough.
WARNING
Do NOT place objects below the indoor and/or outdoor unit
that may get wet. Otherwise condensation on the main unit
or refrigerant pipes, air filter dirt or drain blockage may
cause dripping, and objects under the unit may get dirty or
damaged.
2 Specific installer safety
instructions
Always observe the following safety instructions and regulations.
CAUTION
Do NOT insert fingers, rods or other objects into the air
inlet or outlet. When the fan is rotating at high speed, it will
cause injury.
General installation requirements
WARNING
▪ Make sure to install all necessary countermeasures in
case of refrigerant leakage according to standard
EN378 (see "12.1.3 Additional installation site
requirements for CO₂ refrigerant"[413]).
▪ Make sure to install a CO2 leak detector (field supply)
and enable the function for refrigerant leak detection
(see the installation manual of the indoor unit (air
conditioning)).
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.
WARNING
Install the unit only in locations where the doors of the
occupied space are not tight fitting.
NOTICE
Serious injury and/or damage can result from blow off of
the liquid receiver safety valve (see "19.1 Piping diagram:
Outdoor unit"[440]):
▪ NEVER service the unit when the pressure at the liquid
receiver is higher than the set pressure of the liquid
receiver safety valve (86barg±3%). If this safety valve
releases refrigerant, it can cause serious injury and/or
damage.
▪ If the pressure >86 bar, ALWAYS discharge from
pressure relief devices before servicing.
▪ It is recommended to install and secure blow off piping
to the safety valve.
▪ Remove the refrigerant before altering the safety valve
position.
NOTICE
Adverse effects shall be considered. For example, danger
of water collecting and freezing in discharge pipes for
pressure relief devices, accumulation of dirt and debris, or
blockage of the discharge pipes by solid CO2 (R744).
INFORMATION
Instructions on how to fix the unit in a correct way can be
found in "12Unit installation"[413].
Installation and operation manual
4
CO₂ Conveni-Pack outdoor unit and capacity up unit
LRYEN10A7Y1+LRNUN5A7Y1
4P605461-1B – 2020.08
3 User safety instructions
Refrigerant piping installation (see "13Piping
installation"[417])
WARNING
▪ Only use R744 (CO2) as refrigerant. Other substances
may cause explosions and accidents.
▪ When installing, charging refrigerant, maintaining or
performing service, ALWAYS use personal protective
equipment, such as safety shoes, safety gloves and
safety glasses.
▪ If the unit is installed indoors (for example, in a
machine room), ALWAYS use a portable CO2 detector.
▪ If the front panel is open, ALWAYS beware of the
rotating fan. The fan will continue rotating for a while,
even after the power switch has been turned off.
CAUTION
Do NOT reuse piping from previous installations.
CAUTION
Install the refrigerant piping or components in a position
where they are unlikely to be exposed to any substance
which may corrode components containing refrigerant,
unless the components are constructed of materials that
are inherently resistant to corrosion or are suitably
protected against corrosion.
WARNING
▪ Use K65 piping for high-pressure applications with a
working pressure of 120bar or 90bar, depending on its
location in the system.
▪ Use K65 unions and fittings approved for a working
pressure of 120bar or 90bar, depending on its location
in the system.
▪ Only brazing is allowed for connection of pipes. No
other types of connections are allowed.
▪ Expanding of pipes is not allowed.
INFORMATION
To complete the refrigerating system, additional charging
of refrigerant is required. See "15 Charging
refrigerant"[431].
Electrical installation (see "14Electrical installation"[425])
WARNING
▪ If the power supply has a missing or wrong N-phase,
equipment might break down.
▪ Establish proper earthing. Do NOT earth the unit to a
utility pipe, surge absorber, or telephone earth.
Incomplete earthing may cause electrical shock.
▪ Install the required fuses or circuit breakers.
▪ Secure the electrical wiring with cable ties so that the
cables do NOT come in contact with sharp edges or
piping, particularly on the high-pressure side.
▪ Do NOT use taped wires, stranded conductor wires,
extension cords, or connections from a star system.
They can cause overheating, electrical shock or fire.
▪ Do NOT install a phase advancing capacitor, because
this unit is equipped with an inverter. A phase
advancing capacitor will reduce performance and may
cause accidents.
WARNING
▪ All wiring MUST be performed by an authorised
electrician and MUST comply with the applicable
legislation.
▪ Make electrical connections to the fixed wiring.
▪ All components procured on-site and all electrical
construction MUST comply with the applicable
legislation.
WARNING
ALWAYS use multicore cable for power supply cables.
WARNING
Use an all-pole disconnection type breaker with at least
3 mm between the contact point gaps that provide full
disconnection under overvoltage category III.
WARNING
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.
INFORMATION
A wiring diagram can be found on the applicance and its
description of the connections and wiring to external
control devices and supply cord can be found in
"19.3Wiring diagram: Outdoor unit"[442].
For the user
3 User safety instructions
Always observe the following safety instructions and regulations.
LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit and capacity up unit
4P605461-1B – 2020.08
INFORMATION
The method of connection of the appliance to the electrical
supply and interconnection of separate components is
described in "14.2Field wiring: Overview"[426].
INFORMATION
Details of type and rating of fuses, or rating of circuit
breakers are described in "14Electrical installation"[425].
Installation and operation manual
5
3 User safety instructions
3.1 General
WARNING
If you are NOT sure how to operate the
unit, contact your installer.
WARNING
Children aged from 8 years and above
and persons with reduced physical,
sensory or mental capabilities or lack
of experience and knowledge can only
use this appliance if they have been
given supervision or instruction
concerning the use of the appliance by
a person responsible for their safety.
Children MUST NOT play with the
appliance.
Cleaning and user maintenance MUST
NOT be carried out by children without
supervision.
WARNING
To prevent electrical shocks or fire:
▪ Do NOT rinse the unit.
▪ Do NOT operate the unit with wet
hands.
▪ Do NOT place any objects containing
water on the unit.
CAUTION
▪ Do NOT place any objects or
equipment on top of the unit.
▪ Batteries are marked with the following symbol:
This means that the batteries may NOT be mixed with unsorted
household waste. If a chemical symbol is printed beneath the
symbol, this chemical symbol means that the battery contains a
heavy metal above a certain concentration.
Possible chemical symbols are: Pb: lead (>0.004%).
Waste batteries must be treated at a specialized treatment facility
for reuse. By ensuring waste batteries are disposed of correctly,
you will help to prevent potential negative consequences for the
environment and human health.
3.2 Instructions for safe operation
WARNING
Do NOT modify, disassemble, remove,
reinstall or repair the unit yourself as
incorrect dismantling or installation
may cause an electric shock or fire.
Contact your dealer.
CAUTION
If this unit is equipped with an
electrically powered safety measure,
such as a CO2 refrigerant leak detector
(field supply), in order to be effective,
the unit must be electrically powered at
all times after installation, except for
short service periods.
CAUTION
Do NOT insert fingers, rods or other
objects into the air inlet or outlet. When
the fan is rotating at high speed, it will
cause injury.
▪ Do NOT sit, climb or stand on the
unit.
▪ Units are marked with the following symbol:
This means that electrical and electronic products may NOT be
mixed with unsorted household waste. Do NOT try to dismantle
the system yourself: the dismantling of the system, treatment of
the refrigerant, of oil and of other parts must be done by an
authorized installer and must comply with applicable legislation.
Units must be treated at a specialized treatment facility for reuse,
recycling and recovery. By ensuring this product is disposed of
correctly, you will help to prevent potential negative consequences
for the environment and human health. For more information,
contact your installer or local authority.
Installation and operation manual
6
CAUTION
▪ NEVER touch the internal parts of the
controller.
▪ Do NOT remove the front panel.
Some parts inside are dangerous to
touch and appliance problems may
happen. For checking and adjusting
the internal parts, contact your
dealer.
WARNING
This unit contains electrical and hot
parts.
LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit and capacity up unit
4P605461-1B – 2020.08
3 User safety instructions
WARNING
Before operating the unit, be sure the
installation has been carried out
correctly by an installer.
CAUTION
It is not good for your health to expose
your body to the air flow for a long
time.
CAUTION
To avoid oxygen deficiency, ventilate
the room sufficiently if equipment with
burner is used together with the
system.
CAUTION
Do NOT operate the system when
using a room fumigation-type
insecticide. Chemicals could collect in
the unit, and endanger the health of
people who are hypersensitive to
chemicals.
CAUTION
NEVER expose little children, plants or
animals directly to the airflow.
WARNING
Do NOT place objects below the indoor
and/or outdoor unit that may get wet.
Otherwise condensation on the main
unit or refrigerant pipes, air filter dirt or
drain blockage may cause dripping,
and objects under the unit may get
dirty or damaged.
WARNING
Do NOT place a flammable spray
bottle near the air conditioner and do
NOT use sprays near the unit. Doing
so may result in a fire.
Maintenance and service (see "6Maintenance and
service"[49])
WARNING: System contains
refrigerant under very high
pressure.
The system MUST be serviced by
qualified persons only.
CAUTION: Pay attention to the fan!
It is dangerous to inspect the unit while
the fan is running.
Be sure to turn off the main switch
before executing any maintenance
task.
WARNING
Never replace a fuse with a fuse of a
wrong ampere ratings or other wires
when a fuse blows out. Use of wire or
copper wire may cause the unit to
break down or cause a fire.
CAUTION
After a long use, check the unit stand
and fitting for damage. If damaged, the
unit may fall and result in injury.
CAUTION
Before accessing terminal devices,
make sure to interrupt all power supply.
DANGER: RISK OF
ELECTROCUTION
To clean the air conditioner or air filter,
be sure to stop operation and turn all
power supplies off. Otherwise, an
electric shock and injury may result.
WARNING
Be careful with ladders when working
in high places.
WARNING
Do NOT let the indoor unit get wet.
Possible consequence: Electric
shock or fire.
About the refrigerant (see "6.1About the refrigerant"[49])
WARNING
▪ Do NOT pierce or burn refrigerant
cycle parts.
▪ Do NOT use cleaning materials other
than those recommended by the
manufacturer.
▪ Be aware that the refrigerant inside
the system is odourless.
LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit and capacity up unit
4P605461-1B – 2020.08
Installation and operation manual
7
4 About the system
ab
e e
d c
f
h
i
j
k
h
l
i
j
k
l
g
WARNING
The R744 refrigerant (CO2) inside the
unit is odourless, non-flammable and
normally does NOT leak.
If the refrigerant leaks in high
concentrations in the room, it may have
negative effects on its occupants such
as asphyxiation and carbon dioxide
poisoning. Ventilate the room and
contact the dealer where you
purchased the unit.
Do NOT use the unit until a service
person confirms that the part from
which the refrigerant leaked has been
repaired.
Troubleshooting (see "7Troubleshooting"[49])
WARNING
Stop operation and shut off the
power if anything unusual occurs
(burning smells etc.).
4.1 System layout
INFORMATION
The following illustration is an example and might NOT
match your system layout.
4 About the system
The indoor units can be used for heating/cooling and refrigerating
applications. The type of indoor units which can be used depends on
the outdoor units series.
Leaving the unit running under such
circumstances may cause breakage,
electric shock or fire. Contact your
dealer.
WARNING
Do NOT modify, disassemble, remove, reinstall or repair
the unit yourself as incorrect dismantling or installation may
cause an electric shock or fire. Contact your dealer.
NOTICE
Do NOT use the system for other purposes. In order to
avoid any quality deterioration, do NOT use the unit for
cooling precision instruments or works of art.
NOTICE
Do NOT use the system for cooling water. It may freeze.
NOTICE
For future modifications or expansions of your system:
A full overview of allowable combinations (for future
system extensions) is available in technical engineering
data and should be consulted. Contact your installer to
receive more information and professional advice.
a Main outdoor unit (LRYEN10*)
b Capacity up unit (LRNUN5*)
c Communication box (BRR9B1V1)
d Fan (indoor unit for air conditioning)
e Showcase (indoor unit for refrigeration)
f Blower coil (indoor unit for refrigeration)
g Safety valve
h CO2 control panel
i CO2 detector
j CO2 alarm
k CO2 ventilator
l Shut off valve
5 Operation
5.1 Operation range
Use the system in the following temperature ranges for safe and
effective operation.
Refrigeration A/C cooling A/C heating
Outdoor
temperature
Indoor
temperature
5.2 Design pressure
Always keep the following design pressures in mind:
–20~43°CDB –5~43°CDB –20~16°CWB
— 14~24°CWB 15~27°CDB
Installation and operation manual
8
CO₂ Conveni-Pack outdoor unit and capacity up unit
LRYEN10A7Y1+LRNUN5A7Y1
4P605461-1B – 2020.08
6 Maintenance and service
Side Design pressure
Refrigeration 90bar
Air conditioning 120bar
6 Maintenance and service
NOTICE
Never inspect or service the unit by yourself. Ask a
qualified service person to perform this work.
WARNING
Never replace a fuse with a fuse of a wrong ampere ratings
or other wires when a fuse blows out. Use of wire or
copper wire may cause the unit to break down or cause a
fire.
CAUTION
Do NOT insert fingers, rods or other objects into the air
inlet or outlet. Do NOT remove the fan guard. When the
fan is rotating at high speed, it will cause injury.
CAUTION
After a long use, check the unit stand and fitting for
damage. If damaged, the unit may fall and result in injury.
NOTICE
Do NOT wipe the controller operation panel with benzine,
thinner, chemical dust cloth, etc. The panel may get
discoloured or the coating peeled off. If it is heavily dirty,
soak a cloth in water-diluted neutral detergent, squeeze it
well and wipe the panel clean. Wipe it with another dry
cloth.
6.1 About the refrigerant
This product contains refrigerant gases.
Refrigerant type: R744 (CO2)
WARNING
▪ Do NOT pierce or burn refrigerant cycle parts.
▪ Do NOT use cleaning materials other than those
recommended by the manufacturer.
▪ Be aware that the refrigerant inside the system is
odourless.
WARNING
The R744 refrigerant (CO2) inside the unit is odourless,
non-flammable and normally does NOT leak.
If the refrigerant leaks in high concentrations in the room, it
may have negative effects on its occupants such as
asphyxiation and carbon dioxide poisoning. Ventilate the
room and contact the dealer where you purchased the unit.
Do NOT use the unit until a service person confirms that
the part from which the refrigerant leaked has been
repaired.
6.2 Recommended maintenance and inspection
Since dust collects when using the unit for several years,
performance of the unit will deteriorate to some extent. As taking
apart and cleaning interiors of units requires technical expertise and
in order to ensure the best possible maintenance of your units, we
recommend to enter into a maintenance and inspection contract on
top of normal maintenance activities. Our network of dealers has
access to a permanent stock of essential components in order to
keep your unit in operation as long as possible. Contact your dealer
for more information.
When asking your dealer for an intervention, always state:
▪ The complete model name of the unit.
▪ The manufacturing number (stated on the nameplate of the unit).
▪ The installation date.
▪ The symptoms or malfunction, and details of the defect.
WARNING
▪ Do NOT modify, disassemble, remove, reinstall or
repair the unit yourself as incorrect dismantling or
installation may cause an electric shock or fire. Contact
your dealer.
▪ In case of accidental refrigerant leaks, make sure there
are no naked flames. The refrigerant itself is entirely
safe, non-toxic and non-combustible, but it will
generate toxic gas when it accidentally leaks into a
room where combustible air from fan heaters, gas
cookers, etc. is present. Always have qualified service
personnel confirm that the point of leakage has been
repaired or corrected before resuming operation.
7 Troubleshooting
If system malfunctions are likely to degrade the articles in the room/
showcase, you can ask your installer to install an alarm (example:
lamp). For more information, contact your installer.
If one of the following malfunctions occur, take the measures shown
below and contact your dealer.
WARNING
Stop operation and shut off the power if anything
unusual occurs (burning smells etc.).
Leaving the unit running under such circumstances may
cause breakage, electric shock or fire. Contact your dealer.
The system MUST be repaired by a qualified service person.
Malfunction Measure
If a safety device such as a fuse, a
breaker or an earth leakage breaker
frequently actuates or the ON/OFF
switch does NOT properly work.
If water leaks from the unit. Stop the operation.
The operation switch does NOT work
well.
If the user interface display indicates the
unit number, the operation lamp flashes
and the malfunction code appears.
If the system does NOT operate properly except for the above
mentioned cases and none of the above mentioned malfunctions is
evident, investigate the system in accordance with the following
procedures.
If after checking all above items, it is impossible to fix the problem
yourself, contact your installer and state the symptoms, the complete
model name of the unit (with manufacturing number if possible) and
the installation date (possibly listed on the warranty card).
Turn OFF the main power
switch.
Turn OFF the power
supply.
Notify your installer and
report the malfunction
code.
LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit and capacity up unit
4P605461-1B – 2020.08
Installation and operation manual
9
8 Relocation
a b
8×8×
a b
7.1 Error codes: Overview
In case a malfunction code appears on the indoor unit user interface
display, contact your installer and inform the malfunction code, the
unit type, and serial number (you can find this information on the
nameplate of the unit).
For your reference, a list with malfunction codes is provided. You
can, depending on the level of the malfunction code, reset the code
by pushing the ON/OFF button. If not, ask your installer for advice.
Code Cause Solution
Electric leakage Restart the unit by
switching operating switch
OFF and ON.
The stop valve of an
outdoor unit is left closed.
The stop valve of an
outdoor unit is left closed.
The air passage is blocked. Remove obstacles that
Lost phase in power
supply.
Insufficient supply voltage Check if the supply voltage
Wrong transmission wiring
between units
Open the stop valve on
both the gas and liquid
side.
Open the stop valve on
both the gas and liquid
side.
block the passage of air to
the outdoor unit.
Check the connection of
the power supply cable.
is supplied properly.
Check the connection of
transmission wiring
between the outdoor unit
and the air conditioner.
Code Cause Solution
Wrong combination of
indoor units
Wrong transmission wiring
between units
Refer to the service manual for other malfunction codes.
If no malfunction code is displayed, check if
▪ power of indoor unit is turned on,
▪ user interface wiring is broken or incorrectly wired,
▪ fuse on PCB has melted.
▪ Check the number of
connected indoor units.
▪ Check if an indoor unit is
installed that is not a
possible combination.
Check the connection of
transmission wiring
between the outdoor unit
and the air conditioner.
8 Relocation
Contact your dealer for removing and reinstalling the total unit.
Moving units requires technical expertise.
9 Disposal
NOTICE
Do NOT try to dismantle the system yourself: dismantling
of the system, treatment of the refrigerant, oil and other
parts MUST comply with applicable legislation. Units
MUST be treated at a specialised treatment facility for
reuse, recycling and recovery.
For the installer
10 About the box
10.1 Outdoor unit
Also see "Label about maximum storage temperature"[412].
10.1.1 To unpack the outdoor unit
1 Remove the packaging material from the unit. Take care not to
damage the unit when removing the shrink foil with a cutter.
a Outdoor unit
b Capacity up unit
2 The unit is fixed to the pallet with bolts. Remove these bolts.
a Outdoor unit
b Capacity up unit
WARNING
Tear apart and throw away plastic packaging bags so that
nobody, especially children, can play with them. Possible
risk: suffocation.
10.1.2 To handle the outdoor unit
CAUTION
To avoid injury, do NOT touch the air inlet or aluminium
fins of the unit.
Installation and operation manual
10
CO₂ Conveni-Pack outdoor unit and capacity up unit
LRYEN10A7Y1+LRNUN5A7Y1
4P605461-1B – 2020.08
11 About the units and options
a b
d e
a b
c
a
Crane
Lift the outdoor unit preferably with a crane and 2 belts of at least
8 m long as shown in the figure below. Always use protectors to
prevent belt damage and pay attention to the centre of gravity of the
unit.
Outdoor unit
Capacity up unit
10.1.3 To remove the accessories from the outdoor unit
Outdoor unit
a General safety precautions
b Operation and installation manual
c Declaration of conformity
d Copper packings for stop valve caps (15×)
e Copper packings for service port caps (15×)
Capacity up unit
NOTICE
Use a belt sling of ≤20mm wide that adequately bears the
weight of the unit.
Forklift
a Outdoor unit
b Capacity up unit
NOTICE
Use filler cloth on the forklift arms to prevent damage to the
unit. Damage to the painting of the unit decreases the anticorrosion protection.
a Declaration of conformity
11 About the units and options
11.1 About the outdoor unit
This installation manual concerns the outdoor unit and the optional
capacity up unit.
These units are intended for outdoor installation and aimed for air to
air heating, cooling and refrigeration applications.
NOTICE
These units (LRYEN10* and LRNUN5*) are only parts of
an air conditioner system, complying with partial unit
requirements of the International Standard IEC
60335-2-40:2018. As such, they must ONLY be connected
to other units that have been confirmed as complying to
corresponding partial unit requirements of this International
Standard.
General name and product name
In this manual, we use the following names:
General name Product name
Outdoor unit LRYEN10A7Y1
Capacity up unit LRNUN5A7Y1
LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit and capacity up unit
4P605461-1B – 2020.08
Temperature range
Refrigeration A/C cooling A/C heating
Outdoor
temperature
Indoor
temperature
–20~43°CDB –5~43°CDB –20~16°CWB
— 14~24°CWB 15~27°CDB
Installation and operation manual
11
11 About the units and options
WARNING
Unit is charged and under high pressure.
Set pressure of safety valve is 86 bar g.
If refrigerant temperature is higher than 31°C
there is a possibility that the safety valve will
open during service or power shutdown.
WARNING
Unit is charged and under high pressure.
MAXIMUM STORAGE TEMPERATURE
55°C
ab
e e
d c
f
h
i
j
k
h
l
i
j
k
l
g
11.1.1 Labels on outdoor unit
Label about flow directions
Text on caution label Translation
from LRYEN10A7Y1 to
Refrigeration
Gas for Airco Gas for Airco
Liquid for Airco Liquid for Airco
Gas from Refrigeration Gas from Refrigeration
Liquid to LRNUN5A7Y1 or to
Refrigeration
Label about safety valve
from LRYEN10A7Y1 to
Refrigeration
Liquid to LRNUN5A7Y1 or to
Refrigeration
Text on warning card Translation
Unit is charged and under high
pressure.
Also see "13.2Using stop valves and service ports"[420].
Label about maximum storage temperature
Text on warning label Translation
MAXIMUM STORAGE
TEMPERATURE: 55°C
The unit is factory charged with refrigerant. To avoid the safety relief
valve being opened, the unit must not be exposed to temperatures
above 55°C.
Unit is charged and under high
pressure.
MAXIMUM STORAGE
TEMPERATURE: 55°C
11.2 System layout
Text on warning label Translation
Unit is charged and under high
pressure.
Set pressure of safety valve is 86
bar g.
If refrigerant temperature is
higher than 31°C there is a
possibility that the safety valve
will open during service or power
shutdown.
Check the set pressure of the safety valve at the low pressure side
of the refrigeration cabinet to verify a safe service temperature.
Also see "13.3.5Guidelines to install safety valves"[423].
Card about stop valves and service ports
INFORMATION
The following illustration is an example and might NOT
match your system layout.
Unit is charged and under high
pressure.
Set pressure of safety valve is
86barg.
If refrigerant temperature is
higher than 31°C there is a
possibility that the safety valve
will open during service or power
shutdown.
Installation and operation manual
12
a Main outdoor unit (LRYEN10*)
b Capacity up unit (LRNUN5*)
c Communication box (BRR9B1V1)
d Fan (indoor unit for air conditioning)
e Showcase (indoor unit for refrigeration)
LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit and capacity up unit
4P605461-1B – 2020.08
12 Unit installation
f Blower coil (indoor unit for refrigeration)
g Safety valve
h CO2 control panel
i CO2 detector
j CO2 alarm
k CO2 ventilator
l Shut off valve
11.3 Indoor unit constraints
NOTICE
The design pressure of high pressure side of the
connected refrigeration parts MUST be 9MPa (90bar).
NOTICE
If the design pressure of the lower pressure side of
refrigeration parts is different from 90 bar (for example:
60 bar), a safety valve MUST be installed on the field
piping according to this design pressure. It is NOT possible
to connect refrigeration parts with design pressure below
60bar.
NOTICE
The design pressure of the connected air conditioning
parts MUST be 12MPa (120bar). If this is not the case,
please contact your dealer for assistance.
WARNING
Only the refrigeration parts that are also designed to work
with CO2 shall be connected to the system.
Individual control with a remote controller
In case of a system with several air conditioners that are controlled
with the same remote controller in the same space:
Capacity class Individual control with a
remote controller
50 NOT allowed
71+112 Allowed
Restrictions
Keep the following restrictions in mind when you connect indoor
units:
Restriction Minimum/maximum
Minimum air conditioning total
capacity class
Maximum air conditioning total
capacity class
Maximum indoor units that can
be connected
For more information about the possible combinations, see the
installer and user reference guide of the outdoor unit.
162
233
≤4
Item Description
B Possible patterns with installation
spaces in case of a single
outdoor unit
(a)(b)(c)(d)
C Possible patterns with installation
spaces in case of an outdoor unit
connected to a capacity up unit
(b)(c)(d)
(a)
h1 H1 (actual height)–1500mm
h2 H2 (actual height)–500mm
X Front side = 500mm+≥h1/2
Y (for patterns B) Air inlet side = 300mm+≥h2/2
Y (for patterns C) Air inlet side = 100mm+≥h2/2
(a)
Wall height front side: ≤1500mm.
(b)
Wall height air inlet side: ≤500mm.
(c)
Wall height other sides: no limit.
(d)
Calculate h1 and h2 as shown in the figure. Add h1/2 for
maintenance space to the front side. Add h2/2 for maintenance
space to the back side (if wall height exceeds above values).
CAUTION
Appliance not accessible to the general public, install it in a
secured area, protected from easy access.
This unit, both indoor and outdoor, is suitable for
installation in a commercial and light industrial
environment.
NOTICE
This is a class A product. In a domestic environment this
product may cause radio interference in which case the
user may be required to take adequate measures.
12.1.2 Additional installation site requirements of the outdoor unit in cold climates
In heavy snowfall areas it is very important to select an installation
site where the snow will NOT affect the unit. If lateral snowfall is
possible, make sure that the heat exchanger coil is NOT affected by
the snow. If necessary, install a snow cover or shed and a pedestal.
INFORMATION
For instructions on how to install the snow cover, contact
your dealer.
12.1.3 Additional installation site requirements for CO₂ refrigerant
NOTICE
Although it is recommended to install LRYEN10* and
LRNUN5* outdoors, in some cases it might be needed to
install them inside. In such cases, ALWAYS follow the
indoor installation site requirements for CO2 refrigerant.
12 Unit installation
12.1 Preparing the installation site
12.1.1 Installation site requirements of the outdoor unit
Mind the spacing guidelines. See figure 1 on the inside of the front
cover.
Description of text on figure 1:
Item Description
A Maintenance space
LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit and capacity up unit
4P605461-1B – 2020.08
WARNING
In case of mechanical ventilation, take care the ventilated
air is exhausted to the outdoor space and not into another
closed area.
Refrigerant basic characteristics
Refrigerant R744
RCL (refrigerant concentration limit) 0.072kg/m
QLMV (quantity limit with minimum ventilation) 0.074kg/m
QLAV (quantity limit with additional ventilation) 0.18kg/m
Toxicity limit 0.1kg/m
3
Safety class A1
Installation and operation manual
3
3
3
13
12 Unit installation
A (kg)
B (m³)
0
0
100 15050 200 250 300 350 450 550400 500 600 650 700 750 800 850 900 950 1000
5
10
15
20
25
30
35
40
45
50
55
60
65
70
c
b
a
QLMVQLAV
A (kg)
B (m³)
0
0
100 15050 200 250 300 350 450 550400 500 600 650 700 750 800 850 900 950 1000
5
10
15
20
25
30
35
40
45
50
55
60
65
70
dba
RCLQLAV
QLMV
c
INFORMATION
For more information regarding allowable refrigerant
charge and space volume calculations see the reference
guide of the indoor unit.
Appropriate measures
INFORMATION
Appropriate measures are field supply. Choose and install
all required appropriate measures in accordance with
EN378-3:2016.
▪ (natural or mechanical) ventilation
▪ safety shut-off valves
▪ safety alarm, in combination with a CO2 refrigerant leak detector (a
safety alarm alone is NOT considered an appropriate measure
where occupants are restricted in their movements)
▪ CO2 refrigerant leak detector
WARNING
Install the unit only in locations where the doors of the
occupied space are not tight fitting.
WARNING
When using safety shut-off valves, make sure to install
measures such as a bypassing piping with a pressure relief
valve (from liquid pipe to gas pipe). When the safety shutoff valves close and no measures are installed, increased
pressure may damage the liquid piping.
A Refrigerant charge
B Room volume
a 2 appropriate measures required
b 1 appropriate measure required
c No measure required
For occupancies on the lowest underground floor of the
building
If the total refrigerant charge
(kg) divided by the room
(a)
volume
(m3) is…
…the number of appropriate
measures must be at least…
<RCL 0
>RCL and ≤QLMV 1
>QLMV and <QLAV 2
>QLAV Value CANNOT be exceeded!
(a)
For occupied spaces with a floor area exceeding 250m2, use
250m2 as the floor area for determination of the room volume
(Example: even if the room area is 300m2 and the room height
is 2.5m, calculate the room volume as 250m2×2.5m=625m3)
Example: Total refrigerant change in the system is 45kg and room
volume is 300m3. 45/300=0.15, which is >RCL (0.072) and <QLAV
(0.18), therefore install at least 2 appropriate measures in the room.
To determine the minimum number of appropriate measures
For occupancies other than on the lowest underground floor of
the building
If the total refrigerant charge
(kg) divided by the room
(a)
volume
(m3) is…
<QLMV 0
>QLMV and <QLAV 1
>QLAV 2
(a)
For occupied spaces with a floor area exceeding 250m2, use
250m2 as the floor area for determination of the room volume
(Example: even if the room area is 300m2 and the room height
is 2.5m, calculate the room volume as 250m2×2.5m=625m3)
Example: Total refrigerant charge in the system is 45 kg and room
volume is 300 m3. 45/300=0.15, which is >QLMV (0.074) and
<QLAV (0.18), therefore install at least 1 appropriate measure in the
room.
…the number of appropriate
measures must be at least…
12‒2 Example graph for calculation
A Refrigerant charge limit
B Room volume
a Installation is not allowed
b 2 appropriate measures required
c 1 appropriate measure required
d No measure required
INFORMATION
Even if there is no refrigerating system on the lowest floor,
where the largest system charge (kg) in the building
divided by total volume of the lowest floor (m3) exceed the
value for QLMV, provide a mechanical ventilation in
accordance with EN 378-3:2016.
12.2 Opening and closing the unit
12.2.1 To open the outdoor unit
DANGER: RISK OF ELECTROCUTION
12‒1 Example graph for calculation
Installation and operation manual
14
DANGER: RISK OF BURNING/SCALDING
To gain access to the unit, front plates need to be opened as follows:
1 Remove the screws of the small front plates.
CO₂ Conveni-Pack outdoor unit and capacity up unit
LRYEN10A7Y1+LRNUN5A7Y1
4P605461-1B – 2020.08
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