Daikin LRYEQ16AY1 User manual

Service
Manual
CONVENI-PACK
SiBE811001EB
LRYEQ16AY1(E)
LCBKQ3AV1(E)

SiBE811001EB
1CONVENI-PACK
CONVENI-PACK
LRYEQ16AY1(E)
LCBKQ3AV1(E)
1. Introduction .............................................................................................5
2. System Configuration............................................................................10
2.1System Overview ...................................................................................10
2.2System withAIRNET..............................................................................10
2.3Features of Refrigerant System .............................................................11
2.4Economizer............................................................................................12
2.5Regarding R-410A Selection..................................................................13
2.6Indoor Units tobe Connected.................................................................13
3. Standard Specification ..........................................................................14
3.1Standard Specification ...........................................................................14
3.1.1 Outdoor Unit ......................................................................................... 14
3.1.2 Booster Unit .......................................................................................... 15
3.2 Set Values for Functional Components and Protection Devices............16
3.2.1 Outdoor Unit ......................................................................................... 16
3.2.2 Booster Unit .......................................................................................... 17
3.3 Functional Parts Layout..........................................................................18
3.3.1 LRYEQ16AY1....................................................................................... 18
3.3.2 LCBKQ3AV1 ......................................................................................... 19
3.4 Operation Limits .....................................................................................20
3.5 Wiring Diagram.......................................................................................22
3.6 Piping Diagram.......................................................................................24
3.7 Description and Layout of Functional Parts and Piping Diagram ...........26
3.8 Option List ..............................................................................................30
4. Description of Functions and Operation................................................31
4.1 Operating Mode......................................................................................31
4.2 Operation Zones and Operation Mode No. ............................................32
4.3 Operation Modes and Frequency of Occurrence ...................................32
4.4 Refrigerant Flow for Each Operation Mode............................................33
5. Test Operation ......................................................................................46
5.1 Preparations Prior to Test Operation......................................................46
5.1.1 Charging Additional Refrigeration Oil.................................................... 46
5.1.2 Additional Refrigerant Charging............................................................ 48
5.2 Test Operation........................................................................................51
5.2.1 Test Operation Procedure .................................................................... 51
5.2.2 Checking the Operating State............................................................... 52
5.2.3 Checking the Operation Data ............................................................... 53
5.3 Refrigerant Piping...................................................................................56
5.3.1 To Piping Work Contractors.................................................................. 57
5.3.2 Selection of Piping Material .................................................................. 58
5.3.3 Drier Installation .................................................................................... 59
5.3.4 Operation Method of Stop Valves ......................................................... 59
5.3.5 Precautions for Piping........................................................................... 61
5.4 Field Wiring ............................................................................................62
5.4.1 Procedure for Power Supply Wiring...................................................... 62
5.5 Inspection and Pipe Insulation ...............................................................64
5.5.1 Air Tight Test/Vacuum Drying ............................................................... 64
5.5.2 Thermal Insulation Work ....................................................................... 65
5.5.3 Checking of Device and Installation Conditions.................................... 66

SiBE811001EB
CONVENI-PACK 2
5.6 Checks after Work Completion...............................................................67
5.7 Additional Refrigerant Charge ................................................................67
5.8 Test Operation........................................................................................69
5.9 Check List...............................................................................................71
6. Outline of Functions (Outdoor unit) .......................................................76
6.1 Detailed Description of Functions (Outdoor Unit)...................................79
6.2 Outline of Functions (Booster Unit) ......................................................100
6.2.1 Detailed Description of Functions (Booster Unit) ................................ 102
7. Field Setting ........................................................................................107
7.1 Outdoor Unit .........................................................................................107
7.2 Remote Input........................................................................................133
7.3 Field Setting with the Booster Unit .......................................................134
8. Troubleshooting ..................................................................................137
8.1 Symptom-based Troubleshooting ........................................................137
8.2 Troubleshooting by Remote Controller.................................................140
8.2.1 Mode Access Operation ..................................................................... 140
8.2.2 Self-diagnosis by Wired Remote Controller ........................................ 150
8.2.3 Remote Controller Service Mode........................................................ 151
8.2.4 Test Operation Mode .......................................................................... 153
8.2.5 Remote Controller Self-Diagnosis Function........................................ 154
8.3 Setting with the BS Button....................................................................155
8.3.1 Outdoor Unit ....................................................................................... 155
8.3.2 Booster Unit ........................................................................................ 159
8.4 Troubleshooting by Indication on the Remote Controller .....................162
8.4.1 Error of External Protection Device..................................................... 162
8.4.2 PCB Abnormality ................................................................................ 163
8.4.3 Drain Level Control System (S1L) Abnormality .................................. 164
8.4.4 Fan Motor (M1F) Lock, Overload........................................................ 166
Indoor Unit Fan Motor Abnormality ..................................................... 168
8.4.5 Indoor Unit Fan Motor Overload / Overcurrent / Lock......................... 172
8.4.6 Swing Flap Motor (MA) Abnormality ................................................... 173
8.4.7 Power Supply Voltage Abnormality..................................................... 175
8.4.8 Electronic Expansion Valve Error / Dust Clogging.............................. 176
Electronic Expansion Valve Coil Abnormality ..................................... 178
8.4.9 Humidifier Unit Defect ......................................................................... 179
8.4.10 Capacity Determination Device Abnormality....................................... 180
8.4.11 Error Transmission (Between Indoor Unit PCB and Fan PCB)........... 181
8.4.12 Indoor Unit Thermistors Abnormality .................................................. 183
8.4.13 Combination (Between Indoor Unit PCB and Fan PCB)..................... 184
8.4.14 Discharge Air Thermistor Abnormality ................................................ 185
8.4.15 Room Temperature Thermistor in Remote Controller Abnormality..... 186
8.4.16 STD Compressor Motor Overcurrent/Lock ......................................... 187
8.4.17 PCB Abnormality ................................................................................ 189
8.4.18 Earth Leakage .................................................................................... 190
8.4.19 High Pressure Switch Abnormality...................................................... 192
8.4.20 Low Pressure Sensor Abnormality...................................................... 194
8.4.21 Inverter Compressor Motor Lock ........................................................ 196
8.4.22 Outdoor Unit Fan Motor Abnormality .................................................. 198
8.4.23 Electronic Expansion Valve Coil Abnormality ..................................... 201
8.4.24 Booster Unit Warning.......................................................................... 203
8.4.25 Target Evaporating Temperature Setting Abnormality........................ 204
8.4.26 Transmission Error between Outdoor unit and Booster Unit .............. 205
8.4.27 Booster Unit Warning.......................................................................... 206
8.4.28 Abnormal Discharge Pipe Temperature.............................................. 207
8.4.29 Wet Operation from Refrigeration Suction Pipe.................................. 208
8.4.30 Wet Operation from Injection Pipe ...................................................... 209
8.4.31 3-sensor Error ..................................................................................... 210
8.4.32 Error Related to High Pressure Switch ............................................... 211

SiBE811001EB
3CONVENI-PACK
8.4.33 Low Pressure Switch Failure or Operate ............................................ 212
8.4.34 Outdoor Unit Fan Motor Signal Abnormality ....................................... 213
8.4.35 Outdoor Air Thermistor Abnormality ................................................... 215
8.4.36 Intermediate/High Pressure Sensor Abnormality................................ 216
8.4.37 Low Pressure Sensor Abnormality...................................................... 218
8.4.38 Current Sensor Abnormality................................................................ 220
8.4.39 Outdoor Unit Thermistor Abnormality ................................................. 221
8.4.40 Inverter PCB Abnormality ................................................................... 223
8.4.41 Inverter Radiating Fin Temperature Rise Abnormality........................ 224
8.4.42 Momentary Overcurrent of Inverter Compressor ................................ 225
8.4.43 Momentary Overcurrent of Inverter Compressor ................................ 226
8.4.44 Inverter Compressor Starting Failure.................................................. 228
8.4.45 Transmission Error between Inverter and Outdoor Unit Main PCB .... 231
8.4.46 Inverter Over-Ripple Protection .......................................................... 233
8.4.47 Inverter Radiation Fin Temperature Rise Sensor Abnormality ........... 234
8.4.48 Field Setting Abnormality after Replacing Outdoor Unit Main PCB
or Defective Combination of PCB ....................................................... 235
8.4.49 Reverse Phase, Open Phase ............................................................. 236
8.4.50 Power Supply Insufficient or Instantaneous Failure............................ 237
8.4.51 Transmission Error between Indoor Units and Outdoor Units ............ 239
8.4.52 Transmission Error between Remote Controller and Indoor Unit ....... 241
8.4.53 Transmission Error between Outdoor Units........................................ 242
8.4.54 Transmission Error between Main and Sub Remote Controllers........ 243
8.4.55 Transmission Error between Indoor
and Outdoor Units in the Same System.............................................. 244
8.4.56 Improper Combination of Indoor and Outdoor Units........................... 245
8.4.57 Address Duplication of Central Remote Controller ............................. 246
8.4.58 Transmission Error between Indoor Unit
and Central Remote Controller ........................................................... 247
8.4.59 System is not Set yet .......................................................................... 249
8.4.60 System Abnormality and Refrigerant System Address Undefined...... 250
8.5 Troubleshooting (Booster Unit) ............................................................251
8.5.1 PCB Defect ......................................................................................... 251
8.5.2 Earth Leakage .................................................................................... 252
8.5.3 High Pressure Switch Abnormality...................................................... 253
8.5.4 Low Pressure Sensor Abnormality...................................................... 255
8.5.5 Inverter Compressor Motor Lock ........................................................ 257
8.5.6 Error Electronic Expansion Valve Coil ................................................ 259
8.5.7 Abnormal Discharge Pipe Temperature.............................................. 260
8.5.8 High Pressure Switch Abnormality...................................................... 261
8.5.9 Outdoor Unit Thermistor Abnormality ................................................. 262
8.5.10 Low Pressure Sensor Abnormality...................................................... 263
8.5.11 Inverter PCB Abnormality ................................................................... 265
8.5.12 Inverter Radiating Fin Temperature Rise Abnormality........................ 266
8.5.13 Momentary Overcurrent of Inverter Compressor ................................ 267
8.5.14 Momentary Overcurrent of Inverter Compressor ................................ 269
8.5.15 Inverter Compressor Starting Failure.................................................. 271
8.5.16 Transmission Error between Inverter and Control PCB...................... 274
8.5.17 Inverter Over-Ripple Protection .......................................................... 275
8.5.18 Inverter Radiating Fin Temperature Rise Sensor Abnormality ........... 276
8.5.19 Field Setting after Replacing Outdoor Unit Main PCB
or Combination of PCB Abnormality ................................................... 277
8.5.20 Refrigerant Shortage Alert .................................................................. 278
8.5.21 Power Supply Insufficient or Instantaneous Failure............................ 279
8.5.22 Transmission Error between Outdoor Units and Booster Units .......... 281
8.5.23 System is not Set yet .......................................................................... 283
8.5.24 System Abnormality and Refrigerant System Address Undefined...... 284
8.5.25 Check.................................................................................................. 285
8.6 Troubleshooting by RAM Monitor (Outdoor Unit) .................................296
8.7 Troubleshooting by RAM Monitor (Booster Unit)..................................307
8.8 Maintenance.........................................................................................311

SiBE811001EB
CONVENI-PACK 4
9. Basic Control.......................................................................................318
9.1 Mounting of Feeler Bulb .......................................................................318
9.1.1 Functions of Thermostatic Expansion Valve....................................... 318
9.1.2 Errors due to Faulty Connections ....................................................... 319
9.1.3 Proper Method of Mounting Feeler Bulb............................................. 320
9.1.4 Methods of Fixing, Insulating,
and Antisweat Covering of Feeler Bulb............................................... 323
9.1.5 Type and Principle of Electronic Expansion Valve.............................. 324
9.1.6 Mounting Position of Expansion Valve................................................ 326
9.1.7 Cautions in Construction..................................................................... 326
9.2 Precautions for Electronic Expansion Valve Selection.........................327
9.3 References ...........................................................................................331
9.3.1 Comparison with Conventional Model ................................................ 331
9.3.2 Comparison of Controls with Conventional Model .............................. 332

Introduction SiBE811001EB
5CONVENI-PACK
1. Introduction
Safety Precautions
Before performing design, construction, or maintenance, thoroughly read the "Safety
Precautions" and also the "Installation Manual" and "Operation Manual" that come with this
product.
Precautions are classified as " WARNING" or " CAUTION" for the purpose of this Section.
Items that mishandling highly potentially induces serious consequences such as death or serious
injury are specially described under " WARNING". Furthermore, even items described under
" CAUTION" potentially induce serious consequences depending on circumstances. All are
important items for safety and must be followed without fail.
After the completion of construction or repair work, conduct test run on the equipment to check it
for any abnormalities, and also explain precautions for use of the equipment to customer.
Pictograms
This symbol alerts you to precautions to be taken.
Sections under this symbol provide the specific descriptions of precautions.
This symbol alerts you to prohibited acts.
Sections under or in the vicinity of this symbol provide the specific
descriptions of prohibited acts.
This symbol alerts you to mandatory acts or instructions.
Sections under or in the vicinity of this symbol provide the specific
descriptions of instructions.
<I. Precautions for Construction and Repair>
WARNING
(1) To overhaul the equipment,
be sure to turn OFF all power
supplies.
(2) If a refrigerant gas belches
during work, do not touch the
refrigerant gas.
Not doing so will result in an electric
shock.
To repair the equipment or check for
circuits with power applied, pay utmost
attention not to touch any live part.
Doing so will result in
frostbite.
(3) To remove a welded part
from the suction or discharge
pipe of compressor, remove
it in a well-ventilated area
after thoroughly discharging
a refrigerant gas.
Not doing so will cause the refrigerant
gas or refrigerant oil to belch, thus
resulting in injury.
(4) If a refrigerant gas leaks
during work, ventilate the
working area.
If the refrigerant gas comes
into contact with a flame,
toxic gas will be generated.
(5) The electrical parts of
outdoor unit carry a high
voltage.
To repair these
parts, thoroughly
discharge
electricity from the
capacitor.
Not doing so will result in an electric
shock.

SiBE811001EB Introduction
CONVENI-PACK 6
CAUTION
(6) Do not start or stop the air
conditioner using the POWER
SUPPLY switch.
Doing so may result in a
failure or water leakage.
(7) Do not repair electrical parts
with wet hand.
Doing so may result in an
electric shock.
(8) Do not wash the air
conditioner in water.
Doing so may result in an
electric shock or a fire.
(9) Be sure to establish a ground
for the equipment.
Not doing so may result in
an electric shock.
(10) To clean the equipment, be
sure to set the POWER
SUPPLY switch to "OFF" to
turn OFF all power supplies.
Not doing so may result in injury
because the internal fan rotates at
high speeds.
(11) To dismount the equipment,
pay careful attention not to
tilt it.
Tilting the equipment may
cause water remaining in the
equipment to fall in drops,
thus wetting goods kept in
storage.
(12) Check whether or not the
refrigerating cycle part gets
hot, and then repair the
equipment.
Not doing so may result in a burn.
(13) Use a welder in well-
ventilated areas.
Using the welder in an
enclosed room may result in
lack of oxygen.
<II. Precautions for Equipment after Construction and Repair>
WARNING
(14) To repair the equipment, be
sure to use parts listed in the
List of Service Parts for the
applicable model and proper
tools. Furthermore, NEVER
make any modification to the
equipment.
(15) To install or relocate an air
conditioner, select a location
capable of supporting the
weight of the air conditioner.
The insufficient strength of the
location or improper installation of the
air conditioner will cause the unit to
drop, thus resulting in injury.
Not observing this warning will result
in an electric shock, heat generation,
or a fire.
The insufficient strength of the
location or improper installation of the
air conditioner will cause the unit to
drop, thus resulting in injury.
Not observing this warning will result
in an electric shock, heat generation,
or a fire.

Introduction SiBE811001EB
7CONVENI-PACK
WARNING
(16) Conduct electrical works
according to information in
the "Electrical Equipment
Technical Standards",
"Internal Wiring
Regulations", and Installation
Manual, and further be sure
to use dedicated circuits.
Insufficient capacity of the
power supply circuit and
faulty electrical works will
result in an electric shock or
a fire.
(19) Do not cause damage to or
process the power supply cord.
Doing so will result in an
electric shock or a fire.
Putting heavy things on,
heating, or pulling the power
supply cord will result in
damage to it.
(17) To make wirings between
indoor and outdoor units, use
specified wires to securely
connect them, and fix them so
that the external force of cables
will not be transmitted to
terminal connections.
Imperfect connections or fixing will
result in heat generation or a fire.
(18) To make wirings between
indoor and outdoor units or
for power supply, form wires
so that structures such as the
service lid will not be lifted,
and properly mount the lid.
Improperly mounting the lid will result
in heat generation of the terminal part,
an electric shock, or a fire.
Doing so will result in an
electric shock or a fire.
Putting heavy things on,
heating, or pulling the power
supply cord will result in
damage to it.
(20) Do not cause anything other
than the specified refrigerant
(e.g. air) to get mixed in the
refrigerant system.
Doing so will cause the refrigerant
system to have abnormally high
internal pressure, thus resulting in
damage to the equipment or bodily
injury.
Doing so will cause the refrigerant
system to have abnormally high
internal pressure, thus resulting in
damage to the equipment or bodily
injury.
(21) Should the equipment have
leakage of refrigerant gas,
locate leaking points, and then
repair them without fail.
Subsequently, refill the
equipment with a specified
quantity of refrigerant.
If no leaking points are located and
thereby repair work is to be
discontinued, perform pump down
operation, and then close the service
valve. Not doing so will result in
refrigerant gas leakage.
The refrigerant gas itself is
harmless, but if it comes
into contact with a flame
from a fan heater, stove, or
stove burner, toxic gas will
be generated.
CAUTION
(22) A ground leakage circuit
breaker needs to be mounted.
Mounting no ground leakage circuit
breaker may result in an electric shock
or a fire.
(23) Do not install the equipment
in places with the potential
for leakage of flammable gas.
Should a flammable gas
leak to accumulate
around the equipment,
the gas may catch fire.

SiBE811001EB Introduction
CONVENI-PACK 8
<III. Precautions after Construction and Repair>
WARNING
(24) Check power supply terminals
for deposition of dust or for
any loose terminals.
Deposition of dust on or
imperfect connections of
the terminals will result in
an electric shock or a fire.
(26) Do not connect the power
supply cord halfway or with
many loads of other electrical
fittings on one electric outlet.
Doing so will result in
an electric shock, heat
generation, or a fire.
(25) Be sure to replace flawed or
deteriorated power supply
cord or lead wires.
Not doing so will result in an
electric shock, heat generation,
or a fire.
CAUTION
(27) Check to be sure that the
mounting positions and
wiring conditions of parts as
well as the connections of
soldered parts and crimp
style terminals are all normal.
(30) After the completion of repair,
be sure to make measurement
of insulation resistance to
prove that it is not less than
1MΩ.
Insulation failures may result in an
electric shock.
If any of these items is abnormal, an
electric shock, heat generation, or a
fire may result.
(28) If the installation base or
mounting frames are reduced
in strength due to corrosion,
replace them.
Not doing so may cause the equipment
to drop, thus resulting in injury.
(29) Check for the grounding
state. If the ground is in
an imperfect state,
rectify it.
Imperfect ground may
result in an electric shock.
(31) After the completion of repair,
be sure to check the indoor
unit for drainage.
Insufficient draining from the indoor
unit may result in the entry of water
into a room, thus wetting furniture
and household goods.

Introduction SiBE811001EB
9CONVENI-PACK
CONVENI-PACK
Nomenclature
Outdoor unit
Booster unit
LR EQ A
Y1
Anti-corrosion type
Power supply symbol
Y1: 3φ380-415V, 50Hz
Indicates major design category
Capacity indication
16: 16HP
Refrigerant
Q: R-410A
Compressor type
E: Intermediate INJ type
Y: Refrigeration / Heat Pump
Product category
L: Low temperature air conditioner
R: Outdoor unit
E16Y
LCB KQ3AV1
Anti-corrosion type
Power supply symbol
V1: 1φ220-240V, 50Hz
Indicates major design category
Capacity indication
3: 3HP
Refrigerant
Q: R-410A
Compressor type
K: KHK type∗
CB: Booster unit
Product category
L: Low temperature air-conditioner
∗KHK: Japan’s pressure
vessel standard
E

SiBE811001EB System Configuration
CONVENI-PACK 10
2. System Configuration
2.1 System Overview
2.2 System with AIRNET
Defrost control panel
(field supply)
Defrost signal
DIII net
Abnormal contact
Freezer showcase
Instruction for refrigeration
Abnormal contact
Main contribution to abnormal stop /
Back-up output (200V voltage existing)
Instruction
for freezer
Remote
controller
Buzzer unit
(field supply)
Refrigeration
showcase
Blower
coil
Freezer
reach-in
Outdoor unit
(LRYEQ16AY1)
Booster unit
(LCBKQ3AV1)
Modem
Defrost signal
Inside temperature
[AIRNET]
DIII net
ELB for defrost heater
ELB for refrigerator 200V
ELB for freezer 200V
Abnormal contact
Monitoring center
Public line
Instruction for refrigeration
Freezer showcase
∗A single showcase interface makes it possible to monitor a
maximum of 3 units of showcases.
Wiring for
adaptor of a
unified remote
controller
Instruction
for freezer
Blower
coil
Freezer
reach-in
Remote
controller
Buzzer unit
(option)
Monitoring
of ELBs
∗
Showcase interface
(BRP5A1V1)
ST controller
(DTC601D51)
Refrigeration
showcase
Defrost control panel
(field supply)
Outdoor unit
(LRYEQ16AY1)
Booster unit
(LCBKQ3AV1)

System Configuration SiBE811001EB
11 CONVENI-PACK
2.3 Features of Refrigerant System
Feature-1: Energy saving operation by controlling [3 evaporating temperatures] and [3 liquid refrigerant temperatures].
Feature-2: Energy saving operation by heat recovery of refrigeration system during heating operation.
Liquid temperature 35˚C
Pre-heat exchanger
Liquid temperature 0˚C
Liquid temperature 40˚C
Refrigeration showcase: 5˚C
Refrigeration showcase: 5˚C
Freezer showcase: -30˚C
Indoor unit for air conditioning
Evaporating
temperature 5˚C
Evaporating
temperature -10˚C
Liquid
temperature 20˚C
Evaporating
temperature -35˚C Double pipe
heat exchanger
Plate type
heat exchanger
(Intermediate
pressure)
(a)
0˚C 20˚C 35˚C
(b)
(d)
(f)
(e)
(g)
(c)
Pressure (MPa)
Enthalpy (kcal/kg)
Condensing temperature: 40˚C
Compressor for freezer
Performs cooling of liquid
refrigerant from 35˚C (c) to 20˚C
(b) with this evaporating heat.
Performs cooling of liquid
refrigerant from 20˚C (b) to 0˚C
(a) with this evaporating heat.
<Plate type heat exchanger> <Double pipe heat exchanger>
Saturation temperature equivalent of
intermediate pressure: 10˚C
Compressor for air conditioning
(with economizer)
Compressor for refrigeration
(with economizer)
Evaporating temperature at
air conditioning side: 0˚C
Evaporating temperature
at refrigeration side: -10˚C
Evaporating temperature
at freezer side: -35˚C

SiBE811001EB System Configuration
CONVENI-PACK 12
2.4 Economizer
[Mollier chart]
[Indoor side]
zThe economizer cycle has been adopted as the improvement plan of the performance coefficient of the screw
chiller or centrifugal water chiller. In adopting the high pressure liquid refrigerant called R-410A, an economizer
cycle is adopted to improve efficiency while lowering the discharge gas temperature.
[Single Stage Refrigerating Cycle]
zThis is adopted with temperature control in mind
with the latent heat of evaporation by expanding
part of the high pressure refrigerant in order to
reduce the refrigerant discharge gas temperature.
The performance coefficient decreases with the
decline in refrigerant capacity due to the reduction
of circulated refrigerant volume to the evaporator.
[Economizer Cycle]
zThis performs subcooling of the liquid refrigerant
going to the evaporator by expanding part of the
high pressure refrigerant from the condenser in the
intercooler with auxiliary electronic expansion valve.
zThe refrigerant capacity increases by the
subcooling action. As a result, the performance
coefficient is improved with respect to the existing
machine.
(The performance coefficient is improved by
injecting refrigerant at intermediate pressure during
the compression process and converting to the
refrigerant effect at a lower pressure ratio.)
Compressor
Evaporator Condenser
Intercooler
Compressor
Evaporator
Condenser
Intermediate
suction port
Inhaler/suction
port

System Configuration SiBE811001EB
13 CONVENI-PACK
2.5 Regarding R-410A Selection
The freezing region is realized by an industry first R-410A as a heat-source unit.
The GWP of the R-410A liquid refrigerant becomes about half R-404A.
The refrigerant effect from the economizer and R-410A expands with respect to R-404A, R-22 refrigerant, the
circulating volume of the liquid refrigerant can be reduced with equivalent performance, the pipe size can be reduced
with respect to R-404A and R-22, since there is little pressure loss, and consequently the usage volume of the piping
and refrigerant can also be reduced.
2.6 Indoor Units to be Connected
Indoor unit models to be connected are listed in the table below.
• Indoor unit for air conditioning that can be connected
_Mark····· Indoor unit to which support is scheduled by R-410A CONVENI-PACK
(Individual driving control/For individual remote control)
¡_Mark ····· Indoor unit for air conditioning to which support is scheduled by R-410A CONVENI-PACK
(The same driving control/ For one remote control)
<Restriction matter>
The minimum air conditioning total capacity ··· 8HP
The maximum air conditioning total capacity ···12HP
The maximum indoor unit connection number: 6 or less
Caution The indoor unit for air conditioning does not operate until its cooling capacity exceeds 4 HP.
For this reason, do not connect remote controllers individually to the indoor unit for less than
4 HP when using heating/cooling operations. The indoor unit for air conditioning does not
operate until the capacity of the indoor unit for air conditioning of CONVENI-PACK exceeds 3
HP on heating. For this reason, do not connect the remote controller individually to the indoor
unit for less than 3 HP when operating the heating only machine.
Set up the indoor unit for the air conditioning driven simultaneously in the same space.
Item R-410A R-404A R-22
Ozone Depletion Potentials (ODP) 0 0 0.05
Global Warming Potentials (GWP) 1975 3920 1810
Theoretical COP Ratio (∗1) 91% 85% 100%
Theoretical Cooling Capacity Ratio (per unit
area) (∗1) 145% 93% 100%
Pressure Loss Ratio (Same performance,
same pipe size) 68% 167% 100%
Refrigerant Efficiency Ratio with or without
Economizer (∗2)
Yes No No
125% 65% 100%
(∗1) Evaporating temperature:-40°C, Condensing temperature: 45°C
(∗2) Evaporating temperature:-40°C, Condensing temperature: 45°C
R-22, R-404A: Subcooling 5°C/
Superheated 8°C
Economizer + R-410A: Subcooling 20°C/
Superheated 8°C
R-22
1810
R-404A
3920
R-410A is adopted
R-410A
1975
Ozone Depletion
Potentials
A zero Ozone Depletion
Potentials
Global
Warming
Potentials
Global
Warming
Potentials
Global
Warming
Potentials
Typical Model 50 63 80 100 125 200 250
Capacity Range 2.0HP 2.5HP 3.2HP 4.0HP 5.0HP 8.0HP 10.0HP
Round-flow cassette type (FXFQ) ¡¡¡
Double-flow cassette type (FXCQ) ¡¡¡ 
Ceiling mounted corner cassette type (FXKQ) ¡
Ceiling built-in type (FXSQ) ¡¡¡
Ceiling mounted duct type (FXMQ) ¡¡¡
Ceiling suspended type (FXHQ) ¡
Ceiling suspended cassette type (FXUQ) 
Concealed floor standing type (FXNQ) ¡¡
Floor standing type (FXLQ) ¡¡

SiBE811001EB Standard Specification
CONVENI-PACK 14
3. Standard Specification
3.1 Standard Specification
3.1.1 Outdoor Unit
Note
+1 Operating conditions of outdoor unit
(Air conditioning side)
Indoor temperature: 27°CDB/19°CWB, Outdoor temperature: 32°CDB, Piping length: 7.5m, Level difference: 0m (In cooling priority mode)
(Refrigeration side)
Evaporating temperature: -10°C, Outdoor temperature: 32°CDB, Suction SH: 10°C (In cooling priority mode)
(Heating conditions)
Indoor temperature: 20°CDB, Outdoor temperature: 7°CDB/6°CWB, Refrigeration load: 18kW, Piping length: 7.5m, Level difference: 0m
Saturated temperature equivalent to suction pressure (Refrigeration side): -10°C (Under chilled condition), Connection capacity for indoor air-conditioner: 10HP, When
heat recovery is 100%
Model LRYEQ16AY1
[LRYEQ16AY1E]
Power Supply 3 phase 50Hz 380-415V
Outdoor operating
temperature range
Cooling -5°C~43°CDB
Heating -15°C~15.5°CWB, -15°C~21°CDB
1
Capacity
(kW)
Cooling Air conditioning 14.0 (In cooling priority mode)
Refrigeration 21.8 (In cooling priority mode)
Heating Air conditioning 27.0 (In heat recovery 100% mode)
Refrigeration 21.8 (In heat recovery 100% mode)
Casing Color Ivory white (5Y7.5/1) [Light camel (2.5Y6.5/1.5)]
Dimensions: (H×W×D) mm 1680×1240×765
Heat Exchanger Cross fin coil
Compressor
Type Hermetically sealed scroll type
Piston Displacement m3/h 13.34+10.53+10.53
Number of Revolutions r.p.m 6300, 2900, 2900
Motor Output × Number of Units kW (2.5+3.6+4.5)×1
Starting Method Direct-on-line (Inverter system)
Fan
Type Propeller fan
Motor Output kW 0.75×2
Airflow Rate
m
3
/min
230
Drive Direct drive
Connecting
Pipes
Liquid pipe
Air
conditioning
50m
or
less
φ9.5 C1220T (Brazing connection)
50 ~
130m φ12.7 C1220T (Brazing connection)
Refrigeration
50m
or
less
φ9.5 C1220T (Brazing connection)
50 ~
130m φ12.7 C1220T (Brazing connection)
Gas pipe
Air
conditioning
50m
or
less
φ25.4 C1220T (Brazing connection)
50 ~
130m φ28.6 C1220T (Brazing connection)
Refrigeration
50m
or
less
φ25.4 C1220T (Brazing connection)
50 ~
130m φ28.6 C1220T (Brazing connection)
Receiver Volume 13.5
Mass kg 370
Safety Devices High Pressure Switch, Fan Driver Overload Protector, Overcurrent Relay,
Inverter Overload Protector, Fusible Plug, Earth Leakage Detector
Refrigerant
Refrigerant Name R-410A
Charge Volume kg 11.5
Control Electronic Expansion Valve
Refrigerant
Oil
Refrigerant Oil Name DAPHNE FVC68D
Charge Volume L 1.7+2.1+2.1+4.0
Operating Sound dB(A) 62
Standard Accessories Installation Manual, Operation Manual, Connection Pipes, Clamping Materials,
Declaration of Conformity, Refr. Label for F-gas Regulation

Standard Specification SiBE811001EB
15 CONVENI-PACK
3.1.2 Booster Unit
Note
+1 Operating conditions of booster unit: Evaporating temperature -35°C,
outdoor temperature 32°C, Suction SH 10K,
Saturated temperature to discharge pressure of booster unit -10°C
Model LCBKQ3AV1
LCBKQ3AV1(E)
Power Supply 1 phase 220-240V 50Hz
Capacity 1kW 3.35
Range of Outdoor Temperature °C -15~+43
Casing Color Ivory white (5Y7.5/1) [Light camel (2.5Y6.5/1.5)]
Dimensions: (H×W×D) mm 480×680×310
Compressor
Type Hermetically sealed swing type
Piston Displacement m3/h 10.16
Number of Revolutions r.p.m 6540
Motor Output × Number of Units kW 1.3
Starting Method Direct-on-line (Inverter system)
Fan
Type Propeller fan
Airflow Rate
m
3
/min 1.6
Drive Direct drive
Connecting
Pipes
Liquid pipe For outdoor unit φ6.4 C1220T (Brazing connection)
To indoor unit φ6.4 C1220T (Brazing connection)
Gas pipe For indoor unit φ15.9 C1220T (Brazing connection)
To outdoor unit φ9.5 C1220T (Brazing connection)
Mass kg 47
Safety Devices High Pressure Switch, Inverter Overload Protector
Refrigerant Refrigerant Name R-410A
Control Electronic Expansion Valve
Refrigerant
Oil
Refrigerant Oil Name DAPHNE FVC50K+FVC68D
Charge Volume L 0.85+0.5
Operating Sound dB(A) 49
Standard Accessories Installation Manual, Clamping Materials, Hole Cap, Drain Socket, Drain Receiver

SiBE811001EB Standard Specification
CONVENI-PACK 16
3.2 Set Values for Functional Components and Protection
Devices
3.2.1 Outdoor Unit
Component Electric symbol
LRYEQ16AY1(E)
Compressor
Inverter Type M1C JT1GKDKTNYR@SB (Scroll compressor)
Overcurrent protection device 14.7A
STD1 Type M2C JT17GKKTNYE@SB (Scroll compressor)
Overcurrent protection device 13A
STD2 Type M3C JT17GKKTNYE@SB (Scroll compressor)
Overcurrent protection device 13A
Fan motor
Output M1F 750W
Overcurrent protection device 3A
Output M2F 750W
Overcurrent protection device 3A
PCB
Main PCB A1P Standard: EB09052 Anti-corrosion: EB09053
Sub PCB A2P Standard: EB09052 Anti-corrosion: EB09053
PCB for noise filter A3P FN354-H-1
PCB for compressor INV, A4P PC0509-2
PCB for fan INV. A5P Standard: PC0511-2 Anti-corrosion: PC0511-12
A9P Standard: PC0511-2 Anti-corrosion: PC0511-12
PCB for operation input A6P Standard: EB0568(A) Anti-corrosion: EB0569(A)
PCB for current sensor A7P, A8P Standard: EB0292 Anti-corrosion: EB0923
PCB for earth leakage detection A10P Standard: EC0726-29 Anti-corrosion: EC0726-32
Function
components
Electronic
expansion
valve
Coil
Y1E
(Main)
UKV-A024
DC12V, 0.26A
Body UKV-32D49
0~480 pls
Coil
Y2E
(Injection)
UKV-A024
DC12V, 0.26A
Body UKV-18D20
0~480 pls
Coil Y3E
(Intermediate INJ
(INV.))
UKV-A024
DC12V, 0.26A
Body UKV-32D49
0~480 pls
Coil Y4E
(Intermediate INJ
(STD1))
UKV-A024
DC12V, 0.26A
Body UKV-32D49
0~480 pls
Coil Y5E
(Intermediate INJ
(STD2))
UKV-A024
DC12V, 0.26A
Body UKV-32D49
0~480 pls
Four way
valve
Coil Y1R
(Main)
STF-01AQ532A1
Body STF-0713G
Coil Y2R
(Sub)
STF-01AQ539A1
Body STF-0404G
Coil Y3R
(Suction)
STF-01AQ532A1
Body STF-0404G
Solenoid
valve
Coil Y1S
(Liquid line)
NEV-MOAJ609C1
Body VPV-1204DQ50
Coil Y6S
(Receiver gas vent)
NEV-MOAJ609C1
Body VPV-202DQ53

Standard Specification SiBE811001EB
17 CONVENI-PACK
3.2.2 Booster Unit
Pressure
protection
device
High
pressure
switch
Type S1PH ACB-1TB27W
Set value AC250V OFF: 3.8 MPa ON: 2.85±0.15MPa
Type S2PH ACB-1TB27W
Set value AC250V OFF: 3.8 MPa ON: 2.85±0.15MPa
Type S3PH ACB-1TB27W
Set value AC250V OFF: 3.8 MPa ON: 2.85±0.15MPa
Low
pressure
switch
Type
S1PL
LCB-JA197
Set value DC5~30V OFF: 0.0±0.02MPa ON: 0.06±0.03MPa
Low pressure sensor
S1NPL1
(for refrigeration) 200NH-L2
S1NPL2
(for air conditioning) 150NH-L2
High pressure sensor S1NPH1 200NH-H4
Intermediate pressure sensor S1NPH2 150NH-H4
Fusible plug —Open: 70~75°C
Thermistor
Outdoor air thermistor R1T ST0603 φ5 20kΩ
Suction pipe thermistor (for refrigeration) R21T ST0602 φ8 6.86kΩ
Suction pipe thermistor (for air conditioning) R22T ST0602 φ8 6.86kΩ
Discharge pipe thermistor
R31T
ST0901 φ6 7.13kΩR32T
R33T
Plate type heat exchanger outlet thermistor R4T ST0601 φ7 65.84kΩ
Outdoor unit heat exchanger outlet
thermistor R6T ST8602A φ6 67.77kΩ
Fuse (A1P, A2P) F1U, F2U 250V 3.15A Class T
Fuse F3U, F4U 250V 1.0A Class T
Component Electric symbol
LRYEQ16AY1(E)
+0
-0.1
+0
-0.1
+0
-0.1
Component Electric symbol LCBKQ3AV1(E)
Compressor M1C 2YC63KXD#D
Swing compressor
Fan motor Output M1F —
Overcurrent protection device Impedance protect
PCB
Control/Inverter A1P Standard: EC08008
Heavy anti-corrosion: EC08009
For operation A2P Standard: EC08010
Heavy anti-corrosion: EC08011
Operation input A3P Standard: EC0263-1
Anti-corrosion: EC0263-2
Function
components Electronic expansion valve
Coil Y1E
(Injection)
UKV-A019
Body UKV-18D20
Coil Y2E
(Subcooling)
UKV-A019
Body UKV-18D20
Pressure
protection
device
High pressure switch Type S1PH ACB-4UB89W
Set value OFF 2.5 MPa ON 2.0±0.15MPa
Low pressure sensor S1NPL 150NH4-L2
Thermistor
Thermistor (Discharge pipe) R2T PTM-312-D1-3
Thermistor (Heat exchanger inlet) R3T PXM-36I-D2-2
Thermistor (Heat exchanger outlet) R5T PXM-36I-D2-2
Thermistor (Power module) R10T Control/Inverter PCB(A1P)
DTN-C193H3T-DKK130B
Fuse F1U 250V 6.3A Class T
F2U, F3U 250V 1.0A Class T
+0
-0.1

SiBE811001EB Standard Specification
CONVENI-PACK 18
3.3 Functional Parts Layout
3.3.1 LRYEQ16AY1
Plan
Front View
THERMISTOR
(SUCTION)
RECEIVER
OIL SEPARATOR HEAT EXCHANGER
THERMISTOR
(DISCHARGE)
ELECTRONIC EXPANSION
VALVE (FOR OIL RETURN)
SOLENOID VALVE
PLATE HEAT EXCHANGER
PRESSURE CONTROL VALVE
PRESSURE SENSOR
(MIDDLE PRESS.)
THERMISTOR
(DEICER)
FAN
FAN MOTOR
EL. COMPO. BOX (SUB)
FOUR WAY VALVE
FOUR WAY VALVE
SERVICE PORT
(HIGH PRESS.)
GAGE PORT
(LOW PRESS.)
ELECTRONIC EXPANSION VALVE
(FOR INJECTION)
ELECTRONIC EXPANSION VALVE
(FOR HEATING)
STOP VALVE (FOR MAINTENANCE)
(GAS INJECTION LINE)
STOP VALVE (LIQUID)
(FOR REFRIGERATION)
STOP VALVE (LIQUID)
(FOR AIR-CONDITIONER)
THERMISTOR
(INTERMEDIATE)
COMPRESSOR
(STD2)
COMPRESSOR
(STD1)
COMPRESSOR
(INV.)
THERMISTOR
(OUTDOOR AIR)
SERVICE PORT
(LOW PRESS.)
PRESSURE SENSOR
(LOW PRESS.)
PRESSURE SENSOR
(HIGH PRESS.)
FOUR WAY VALVE
FAN MOTOR
FAN
EL. COMPO. BOX
(MAIN)
STOP VALVE (FOR MAINTENANCE)
(HEAT EXCH. ON PRIMARY SIDE)
SERVICE PORT
(LOW PRESS.)
PRESSURE SWITCH
(HIGH PRESSURE PROTECTION)
PRESSURE SWITCH
(LOW PRESSURE PROTECTION)
STOP VALVE (GAS)
(FOR AIR-CONDITIONER)
STOP VALVE (GAS)
(FOR REFRIGERATION)
GAGE PORT
(HIGH PRESS.)

Standard Specification SiBE811001EB
19 CONVENI-PACK
3.3.2 LCBKQ3AV1
Plan
Front View
ELECTRONIC EXPANSION VALVE
(FOR LIQUID INJECTION)
PRESSURE CONTROL VALVE
ELECTRONIC EXPANSION VALVE
(FOR SUB COOLING)
PRESSURE SENSOR
(LOW)
COMPRESSOR
(INV.)
HIGH PRESSURE SWITCH
OIL SEPARATOR SERVICE PORT
STOP VALVE
(LIQUID INLET SIDE)
STOP VALVE
(DISCHARGE GAS SIDE)
EL. COMPO BOX
DOUBLE TUBE HEAT EXCH.
FAN
(FOR INVERTER COOLING)