Daikin Aurora Series User manual

Service
Manual
SiUS341802E
Heat Pump 60 Hz
Aurora Series
RXLQ72-240TATJU
RXLQ72-240TAYDU
RXLQ72-240TAYCU
RXYQ72-384TAYCU

SiUS341802E
iTable of Contents
RXLQ-TA
RXYQ-TA
Heat Pump
R-410A 60 Hz
1. Safety Cautions......................................................................................... vii
1.1 Warnings and Cautions Regarding Safety of Workers................................vii
1.2 Warnings and Cautions Regarding Safety of Users.....................................ix
2. Used Icons ................................................................................................ xii
Part 1 General Information .............................................................. 1
1. Model Names ..............................................................................................2
1.1 Indoor Unit.................................................................................................... 2
1.2 Outdoor Unit ................................................................................................. 2
1.3 Air Treatment Equipment ............................................................................. 3
2. External Appearance...................................................................................4
2.1 Indoor Unit.................................................................................................... 4
2.2 Outdoor Unit ................................................................................................. 5
2.3 Air Treatment Equipment ............................................................................. 6
3. Combination of Outdoor Units.....................................................................7
3.1 RXLQ-TATJU, RXLQ-TAYDU, RXLQ-TAYCU............................................. 7
3.2 RXYQ-TAYCU.............................................................................................. 7
4. Capacity Range...........................................................................................8
4.1 Combination Ratio........................................................................................ 8
4.2 Outdoor Unit Combinations .......................................................................... 9
Part 2 Refrigerant Circuit .............................................................. 10
1. Refrigerant Circuit .....................................................................................11
1.1 Outdoor Unit ............................................................................................... 11
1.2 Indoor Unit.................................................................................................. 14
1.3 Outdoor-Air Processing Unit....................................................................... 16
2. Functional Parts Layout ............................................................................17
2.1 RXLQ72TATJU, RXLQ72TAYDU, RXLQ72TAYCU,
RXYQ72-120TAYCU.................................................................................. 17
2.2 RXLQ96/120TATJU, RXLQ96/120TAYDU,
RXLQ96/120TAYCU, RXYQ144/168TAYCU ............................................. 20
3. Refrigerant Flow for Each Operation Mode...............................................22
3.1 Cooling Operation ...................................................................................... 22
3.2 Heating Operation ...................................................................................... 23
Aurora Series

SiUS341802E
Table of Contents ii
3.3 Cooling Oil Return Operation ..................................................................... 24
3.4 Defrost Heating Oil Return Operation ........................................................ 25
Part 3 Remote Controller ............................................................... 26
1. Applicable Models .....................................................................................27
2. Names and Functions ...............................................................................28
2.1 BRC1E73 ................................................................................................... 28
2.2 Wireless Remote Controller ....................................................................... 31
3. Main/Sub Setting.......................................................................................32
3.1 BRC1E73 ................................................................................................... 32
3.2 Wireless Remote Controller ....................................................................... 33
4. Centralized Control Group No. Setting......................................................34
4.1 BRC1E73 ................................................................................................... 34
4.2 Wireless Remote Controller ....................................................................... 36
4.3 Group No. Setting Example........................................................................ 37
5. Service Mode ............................................................................................38
5.1 BRC1E73 ................................................................................................... 38
Part 4 Functions and Control......................................................... 40
1. Operation Flowchart (Outdoor Unit) ..........................................................42
2. Stop Control ..............................................................................................43
2.1 Stop due to Error........................................................................................ 43
2.2 When System is in Stop Mode ................................................................... 43
2.3 Slave Unit Stops during Master Unit Operation.......................................... 43
3. Standby Control ........................................................................................44
3.1 Restart Standby.......................................................................................... 44
3.2 Crankcase Heater Control.......................................................................... 44
4. Startup Control ..........................................................................................45
4.1 Startup Control in Cooling .......................................................................... 45
4.2 Startup Control in Heating .......................................................................... 46
5. Basic Control.............................................................................................47
5.1 Normal Operation ....................................................................................... 47
5.2 Compressor PI Control............................................................................... 48
5.3 Operating Priority and Rotation of Compressors........................................ 49
5.4 Compressor Step Control........................................................................... 50
5.5 Electronic Expansion Valve PI Control....................................................... 52
5.6 Step Control of Outdoor Fans .................................................................... 53
6. Protection Control .....................................................................................54
6.1 High Pressure Protection Control............................................................... 54
6.2 Low Pressure Protection Control................................................................ 56
6.3 Discharge Pipe Protection Control ............................................................. 57
6.4 Compressor Body Protection Control......................................................... 58
6.5 Inverter Protection Control ......................................................................... 58
7. Special Control..........................................................................................60
7.1 Pump Down Residual Operation ................................................................ 60

SiUS341802E
iii Table of Contents
7.2 Oil Return Operation .................................................................................. 61
7.3 Defrost Operation ....................................................................................... 63
7.4 Outdoor Unit Rotation................................................................................. 64
8. Other Control.............................................................................................65
8.1 Backup Operation....................................................................................... 65
8.2 Demand Operation ..................................................................................... 65
8.3 Heating Operation Prohibition .................................................................... 66
9. Outline of Control (Indoor Unit) .................................................................67
9.1 Operation Flowchart ................................................................................... 67
9.2 Set Temperature and Control Temperature ............................................... 69
9.3 Remote Controller Thermistor .................................................................... 71
9.4 Thermostat Control..................................................................................... 73
9.5 Drain Pump Control.................................................................................... 76
9.6 Control of Electronic Expansion Valve ....................................................... 78
9.7 Freeze-up Prevention................................................................................. 79
9.8 List of Swing Flap Operations .................................................................... 81
9.9 Hot Start Control (In Heating Only) ............................................................ 82
9.10 Louver Control for Preventing Ceiling Dirt.................................................. 83
9.11 Heater Control (Except FXTQ-TA Models)................................................. 84
9.12 Heater Control (FXTQ-TA Models)............................................................. 85
9.13 3 Step Thermostat Processing (FXTQ-TA Models).................................... 88
9.14 Fan Control (Heater Residual) (FXTQ-TA Models) .................................... 89
9.15 Interlocked with External Equipment (FXTQ-TA Models)........................... 89
Part 5 Field Settings and Test Operation...................................... 91
1. Field Settings from Remote Controller ......................................................92
1.1 Wired Remote Controller............................................................................ 92
1.2 Wireless Remote Controller ....................................................................... 94
1.3 Simplified Remote Controller...................................................................... 95
1.4 List of Field Settings for Indoor Unit ........................................................... 96
1.5 Details of Field Settings for Indoor Unit...................................................... 99
1.6 List of Field Settings for Outdoor-Air Processing Unit .............................. 112
1.7 Setting of Operation Control Mode........................................................... 112
2. Field Setting from Outdoor Unit...............................................................114
2.1 DIP Switch Setting.................................................................................... 114
2.2 Accessing the BS Buttons on the Logic Board......................................... 117
2.3 Operating the BS Buttons and DIP Switches on the Logic Board ............ 118
2.4 Connecting of the Optional PC Configurator Cable
to the Outdoor Unit ................................................................................... 120
2.5 Monitoring Function and Field Settings .................................................... 121
2.6 Setting of Night-time Low Noise Operation and Demand Operation........ 136
3. Test Operation ........................................................................................141
3.1 Checks before Test Operation ................................................................. 141
3.2 Checkpoints.............................................................................................. 141

SiUS341802E
Table of Contents iv
Part 6 Service Diagnosis.............................................................. 142
1. Symptom-based Troubleshooting ...........................................................145
1.1 Indoor Unit Overall ................................................................................... 145
1.2 With Optional Infrared Presence/Floor Sensor......................................... 148
1.3 Wired Remote Controller.......................................................................... 149
1.4 Wireless Remote Controller ..................................................................... 150
1.5 Error Codes and Descriptions .................................................................. 152
1.6 Error Codes - Sub Codes ......................................................................... 154
2. Troubleshooting by Error Code ...............................................................167
2.1 External Protection Device Abnormality ................................................... 167
2.2 Indoor Unit PCB Abnormality ................................................................... 169
2.3 Drain Level Control System Abnormality.................................................. 170
2.4 Indoor Fan Motor Lock, Overload............................................................. 172
2.5 Indoor Fan Motor Abnormality.................................................................. 175
2.6 Overload/Overcurrent/Lock of Indoor Fan Motor...................................... 179
2.7 Blower Motor Not Running ....................................................................... 180
2.8 Indoor Fan Motor Status Abnormality....................................................... 181
2.9 Low Indoor Airflow.................................................................................... 182
2.10 Swing Flap Motor Abnormality ................................................................. 183
2.11 Power Supply Voltage Abnormality .......................................................... 185
2.12 Blower Motor Stops for Over/Under Voltage ............................................ 186
2.13 Electronic Expansion Valve Coil Abnormality, Dust Clogging .................. 187
2.14 Drain Level above Limit............................................................................ 188
2.15 Capacity Determination Device Abnormality ............................................ 189
2.16 Transmission Abnormality between Indoor Unit PCB and Fan PCB........ 190
2.17 Blower Motor Communication Error ......................................................... 192
2.18 Thermistor Abnormality ............................................................................ 193
2.19 Combination Error between Indoor Unit PCB and Fan PCB .................... 194
2.20 Blower Motor HP Mismatch...................................................................... 195
2.21 Indoor Blower Does Not Have Required Parameters to Function............ 196
2.22 Remote Sensor Abnormality .................................................................... 197
2.23 Humidity Sensor System Abnormality ...................................................... 198
2.24 Infrared Presence/Floor Sensor Error ...................................................... 199
2.25 Remote Controller Thermistor Abnormality .............................................. 204
2.26 Outdoor Unit PCB Abnormality................................................................. 205
2.27 Detection of Ground Leakage by Leak Detection Circuit ......................... 206
2.28 Missing of Ground Leakage Detection Core ............................................ 207
2.29 Actuation of High Pressure Switch ........................................................... 208
2.30 Actuation of Low Pressure Sensor ........................................................... 210
2.31 Inverter Compressor Motor Lock.............................................................. 211
2.32 Compressor Damage Alarm..................................................................... 213
2.33 Outdoor Fan Motor Abnormality ............................................................... 215
2.34 Electronic Expansion Valve Coil Abnormality........................................... 219
2.35 Discharge Pipe Temperature Abnormality ............................................... 220
2.36 Wet Alarm................................................................................................. 222
2.37 Refrigerant Overcharged.......................................................................... 223

SiUS341802E
vTable of Contents
2.38 Harness Abnormality (between Outdoor Unit Main PCB and
Inverter PCB)............................................................................................ 224
2.39 Outdoor Fan Motor Signal Abnormality .................................................... 225
2.40 Outdoor Fan PCB Abnormality................................................................. 226
2.41 Thermistor Abnormality ............................................................................ 227
2.42 High Pressure Sensor Abnormality .......................................................... 229
2.43 Low Pressure Sensor Abnormality ........................................................... 230
2.44 Inverter PCB Abnormality......................................................................... 231
2.45 Momentary Power Failure during Test Operation .................................... 233
2.46 Reactor Temperature Rise Abnormality ................................................... 234
2.47 Inverter Radiation Fin Temperature Rise Abnormality ............................. 235
2.48 Inverter Compressor Instantaneous Overcurrent ..................................... 239
2.49 Inverter Compressor Overcurrent............................................................. 241
2.50 Inverter Compressor Startup Abnormality ................................................ 243
2.51 Transmission Error between Inverter PCB and
Outdoor Unit Main PCB............................................................................ 245
2.52 Power Supply Voltage Imbalance ............................................................ 247
2.53 Reactor Surface Thermistor Abnormality ................................................. 249
2.54 Inverter Radiation Fin Temperature Abnormality ..................................... 250
2.55 Field Setting after Replacing Outdoor Unit Main PCB Abnormality or
Combination of PCB Abnormality............................................................. 252
2.56 Refrigerant Shortage ................................................................................ 253
2.57 Reverse Phase, Open Phase................................................................... 254
2.58 Power Supply Insufficient or Instantaneous Abnormality ......................... 256
2.59 Check Operation not Executed ................................................................ 258
2.60 Transmission Error between Indoor Units and Outdoor Units.................. 259
2.61 Transmission Error between Remote Controller and Indoor Unit............. 262
2.62 Transmission Error between Outdoor Units ............................................. 263
2.63 Transmission Error between Main and Sub Remote Controllers ............. 269
2.64 Transmission Error between Indoor and
Outdoor Units in the Same System .......................................................... 270
2.65 Improper Combination of Indoor and Outdoor Units,
Indoor Units and Remote Controller......................................................... 271
2.66 Incorrect Electric Heater Capacity Setting................................................ 276
2.67 Address Duplication of Centralized Control Equipment ........................... 277
2.68 Transmission Error between Centralized Control Equipment and
Indoor Unit................................................................................................ 278
2.69 System Not Set Yet .................................................................................. 280
2.70 System Abnormality, Refrigerant System Address Undefined ................. 281
3. Check ......................................................................................................283
3.1 High Pressure Check ............................................................................... 283
3.2 Low Pressure Check ................................................................................ 284
3.3 Superheat Operation Check..................................................................... 285
3.4 Power Transistor Check ........................................................................... 286
3.5 Refrigerant Overcharge Check................................................................. 291
3.6 Refrigerant Shortage Check..................................................................... 292
3.7 Vacuuming and Dehydration Procedure .................................................. 293
3.8 Thermistor Check ..................................................................................... 294

SiUS341802E
Table of Contents vi
3.9 Pressure Sensor Check ........................................................................... 297
3.10 Broken Wire Check of the Relay Wires .................................................... 298
3.11 Fan Motor Connector Check (Power Supply Cable) ................................ 299
3.12 Fan Motor Connector Check (Signal Cable) ............................................ 299
3.13 Electronic Expansion Valve Coil Check ................................................... 300
Part 7 Appendix............................................................................ 302
1. Wiring Diagrams......................................................................................303
1.1 Outdoor Unit ............................................................................................. 303
1.2 Indoor Unit................................................................................................ 308
1.3 Air Treatment Equipment ......................................................................... 316

Safety Cautions SiUS341802E
vii
1. Safety Cautions
Be sure to read the following safety cautions before conducting repair work.
After the repair work is complete, be sure to conduct a test operation to ensure that the equipment
operates normally, and explain the cautions for operating the product to the customer.
Caution Items The caution items are classified into Warning and Caution. The Warning items are
especially important since death or serious injury can result if they are not followed closely. The
Caution items can also lead to serious accidents under some conditions if they are not
followed. Therefore, be sure to observe all the safety caution items described below.
Pictograms This symbol indicates the item for which caution must be exercised.
The pictogram shows the item to which attention must be paid.
This symbol indicates the prohibited action.
The prohibited item or action is shown in the illustration or near the symbol.
This symbol indicates the action that must be taken, or the instruction.
The instruction is shown in the illustration or near the symbol.
1.1 Warnings and Cautions Regarding Safety of Workers
This manual is for the
person in charge of
maintenance and
inspection.
Warning
Do not store the equipment in a room with fire sources (e.g. naked flames,
gas appliances, electric heaters).
Be sure to disconnect the power cable from the socket before
disassembling equipment for repair.
Working on equipment that is connected to the power supply may cause an
electrical shock.
If it is necessary to supply power to the equipment to conduct the repair or
inspecting the circuits, do not touch any electrically charged sections of the
equipment.
If refrigerant gas is discharged during repair work, do not touch the
discharged refrigerant gas.
Refrigerant gas may cause frostbite.
When disconnecting the suction or discharge pipe of the compressor at
the welded section, evacuate the refrigerant gas completely at a well-
ventilated place first.
If there is gas remaining inside the compressor, the refrigerant gas or
refrigerating machine oil discharges when the pipe is disconnected, and it may
cause injury.
If refrigerant gas leaks during repair work, ventilate the area.
Refrigerant gas may generate toxic gases when it contacts flames.

SiUS341802E Safety Cautions
viii
Be sure to discharge the capacitor completely before conducting repair
work.
The step-up capacitor supplies high-voltage electricity to the electrical
components of the outdoor unit.
A charged capacitor may cause an electrical shock.
Do not turn the air conditioner on or off by plugging in or unplugging the
power cable.
Plugging or unplugging the power cable to operate the equipment may cause
an electrical shock or fire.
Be sure to wear a safety helmet, gloves, and a safety belt when working
in a high place (more than 2 m (6.5 ft)).
Insufficient safety measures may cause a fall.
In case of R-32 and R-410A refrigerant models, be sure to use pipes, flare
nuts and tools intended for exclusive use with R-32 and R-410A
refrigerant.
The use of materials for R-22 refrigerant models may cause a serious accident,
such as damage to the refrigerant cycle or equipment failure.
Do not mix air or gas other than the specified refrigerant (R-32, R-410A,
R-22) in the refrigerant system.
If air enters the refrigerating system, excessively high pressure results, causing
equipment damage and injury.
Warning
Caution
Do not repair electrical components with wet hands.
Working on the equipment with wet hands may cause an electrical shock.
Do not clean the air conditioner with water.
Washing the unit with water may cause an electrical shock.
Be sure to provide an earth/grounding when repairing the equipment in a
humid or wet place, to avoid electrical shocks.
Be sure to turn off the power switch and unplug the power cable when
cleaning the equipment.
The internal fan rotates at a high speed, and may cause injury.

Safety Cautions SiUS341802E
ix
1.2 Warnings and Cautions Regarding Safety of Users
Be sure to conduct repair work with appropriate tools.
The use of inappropriate tools may cause injury.
Be sure to check that the refrigerating cycle section has cooled down
enough before conducting repair work.
Working on the unit when the refrigerating cycle section is hot may cause
burns.
Conduct welding work in a well-ventilated place.
Using a welder in an enclosed room may cause oxygen deficiency.
Caution
Warning
Do not store the equipment in a room with fire sources (e.g. naked flames,
gas appliances, electric heaters).
Be sure to use parts listed in the service parts list of the applicable model
and appropriate tools to conduct repair work. Never attempt to modify the
equipment.
The use of inappropriate parts or tools may cause an electrical shock,
excessive heat generation or fire.
If the power cable and lead wires are scratched or have deteriorated, be
sure to replace them.
Damaged cable and wires may cause an electrical shock, excessive heat
generation or fire.
Do not use a joined power cable or extension cable, or share the same
power outlet with other electrical appliances, since it may cause an
electrical shock, excessive heat generation or fire.
Be sure to use an exclusive power circuit for the equipment, and follow
the local technical standards related to the electrical equipment, the
internal wiring regulations, and the instruction manual for installation
when conducting electrical work.
Insufficient power circuit capacity and improper electrical work may cause an
electrical shock or fire.

SiUS341802E Safety Cautions
x
Be sure to use the specified cable for wiring between the indoor and
outdoor units.
Make the connections securely and route the cable properly so that there is no
force pulling the cable at the connection terminals.
Improper connections may cause excessive heat generation or fire.
When wiring between the indoor and outdoor units, make sure that the
terminal cover does not lift off or dismount because of the cable.
If the cover is not mounted properly, the terminal connection section may cause
an electrical shock, excessive heat generation or fire.
Do not damage or modify the power cable.
Damaged or modified power cables may cause an electrical shock or fire.
Placing heavy items on the power cable, or heating or pulling the power cable
may damage it.
Do not mix air or gas other than the specified refrigerant (R-32, R-410A,
R-22) in the refrigerant system.
If air enters the refrigerating system, excessively high pressure results, causing
equipment damage and injury.
If the refrigerant gas leaks, be sure to locate the leakage and repair it
before charging the refrigerant. After charging the refrigerant, make sure
that there is no leakage.
If the leakage cannot be located and the repair work must be stopped, be sure
to pump-down, and close the service valve, to prevent refrigerant gas from
leaking into the room. Refrigerant gas itself is harmless, but it may generate
toxic gases when it contacts flames, such as those from fan type and other
heaters, stoves and ranges.
When relocating the equipment, make sure that the new installation site
has sufficient strength to withstand the weight of the equipment.
If the installation site does not have sufficient strength or if the installation work
is not conducted securely, the equipment may fall and cause injury.
Check to make sure that the power cable plug is not dirty or loose, then
insert the plug into a power outlet securely.
If the plug is dusty or has a loose connection, it may cause an electrical shock
or fire.
When replacing the coin battery in the remote controller, be sure to
dispose of the old battery to prevent children from swallowing it.
If a child swallows the coin battery, see a doctor immediately.
Warning

Safety Cautions SiUS341802E
xi
Caution
Installation of a leakage breaker is necessary in some cases depending
on the conditions of the installation site, to prevent electrical shocks.
Do not install the equipment in a place where there is a possibility of
combustible gas leaks.
If combustible gas leaks and remains around the unit, it may cause a fire.
Check to see if parts and wires are mounted and connected properly, and
if the connections at the soldered or crimped terminals are secure.
Improper installation and connections may cause excessive heat generation,
fire or an electrical shock.
If the installation platform or frame has corroded, replace it.
A corroded installation platform or frame may cause the unit to fall, resulting in
injury.
Check the earth/grounding, and repair it if the equipment is not properly
earthed/grounded.
Improper earth/grounding may cause an electrical shock.
Be sure to measure insulation resistance after the repair, and make sure
that the resistance is 1 MΩor higher.
Faulty insulation may cause an electrical shock.
Be sure to check the drainage of the indoor unit after the repair.
Faulty drainage may cause water to enter the room and wet the furniture and
floor.
Do not tilt the unit when removing it.
The water inside the unit may spill and wet the furniture and floor.

SiUS341802E Used Icons
xii
2. Used Icons
The following icons are used to attract the attention of the reader to specific information.
Icon Type of
Information
Description
Warning
Warning A Warning is used when there is danger of personal injury.
Caution
Caution A Caution is used when there is danger that the reader, through
incorrect manipulation, may damage equipment, lose data, get
an unexpected result or has to restart (part of) a procedure.
Note:
Note A Note provides information that is not indispensable, but may
nevertheless be valuable to the reader, such as tips and tricks.
Reference A Reference guides the reader to other places in this binder or
in this manual, where he/she will find additional information on a
specific topic.

SiUS341802E
1General Information
Part 1
General Information
1. Model Names ..............................................................................................2
1.1 Indoor Unit.................................................................................................... 2
1.2 Outdoor Unit ................................................................................................. 2
1.3 Air Treatment Equipment ............................................................................. 3
2. External Appearance...................................................................................4
2.1 Indoor Unit.................................................................................................... 4
2.2 Outdoor Unit ................................................................................................. 5
2.3 Air Treatment Equipment ............................................................................. 6
3. Combination of Outdoor Units.....................................................................7
3.1 RXLQ-TATJU, RXLQ-TAYDU, RXLQ-TAYCU............................................. 7
3.2 RXYQ-TAYCU.............................................................................................. 7
4. Capacity Range...........................................................................................8
4.1 Combination Ratio........................................................................................ 8
4.2 Outdoor Unit Combinations .......................................................................... 9

SiUS341802E Model Names
General Information 2
1. Model Names
1.1 Indoor Unit
VJ : 1 phase, 208/230 V, 60 Hz
U(VJU) : Standard symbol
1.2 Outdoor Unit
TJ : 3 phase, 208/230 V, 60 Hz
YD : 3 phase, 460 V, 60 Hz
YC : 3 phase, 575 V, 60 Hz
U(YCU): Standard symbol
Capacity Range (ton) 0.5 0.6 0.8 11.25 1.5 22.5 33.5 44.5 5 6 8 Power
Supply,
Standard
Capacity Index 5.8 7.5 9.5 12 15 18 20 24 30 36 42 48 54 60 72 96
Ceiling Mounted Cassette
(Round Flow with Sensing) Type
FXFQ — 07T 09T 12T 15T 18T — 24T 30T 36T — 48T — — — —
VJU
Ceiling Mounted Cassette
(Round Flow) Type FXFQ — — 09P 12P — 18P — 24P 30P 36P — 48P — — — —
4 Way Ceiling Mounted
Cassette (2'×2') Type FXZQ
05TA 07TA 09TA 12TA 15TA 18TA ——————————
—07M09M12M15M18M—————————— VJU9
4-Way Blow Ceiling-Suspended Type FXUQ——————18P24P30P36P——————
VJU
OneWayBlowCassetteTypeFXEQ—07P09P12P15P18P—24P————————
Slim Ceiling Mounted Duct Type FXDQ—07M09M12M—18M—24M————————
Ceiling Mounted Duct Type
(Middle and High Static
Pressure)
FXSQ
05TA 07TA 09TA 12TA 15TA 18TA — 24TA 30TA 36TA — 48TA 54TA ———
FXMQ —
07PB 09PB 12PB 15PB 18PB — 24PB 30PB 36PB — 48PB 54PB ———
Ceiling Mounted Duct Type FXMQ — — ————————————72M96M
Ceiling Suspended Type FXHQ — — — 12M — — — 24M — 36M — — — — — —
Wall Mounted Type FXAQ — 07P 09P 12P — 18P — 24P ————————
Floor Standing Type FXLQ — 07M 09M 12M — 18M — 24M ————————
VJU
Concealed Floor Standing Type FXNQ—07M09M12M—18M—24M————————
Air Handling Unit FXTQ
——
09TA 12TA — 18TA — 24TA 30TA 36TA 42TA 48TA 54TA 60TA —— VJUA
——
09TA 12TA — 18TA — 24TA 30TA 36TA 42TA 48TA 54TA 60TA —— VJUD
Capacity Range (ton) 6 8 10 12 14 16 18 Power Supply,
Standard
Capacity Index 72 96 120 144 168 192 216
Heat Pump Aurora Series RXLQ 72TA 96TA 120TA 144TA — 192TA —
TJU
YDU
YCU
Standard Series RXYQ 72TA 96TA 120TA 144TA 168TA 192TA 216TA YCU
Capacity Range (ton) 20 22 24 26 28 30 32 Power Supply,
Standard
Capacity Index 240 264 288 312 336 360 384
Heat Pump Aurora Series RXLQ 240TA — —————
TJU
YDU
YCU
Standard Series RXYQ 240TA 264TA 288TA 312TA 336TA 360TA 384TA YCU

Model Names SiUS341802E
3General Information
Aurora Series RXLQ-TATJU (208/230 V)
Aurora Series RXLQ-TAYDU (460 V)
Aurora Series RXLQ-TAYCU (575 V)
Standard Series RXYQ-TAYCU (575 V)
1.3 Air Treatment Equipment
Outdoor-Air Processing Unit
Energy Recovery Ventilator (VAM series)
VJ : 1 phase, 208/230 V, 60 Hz
U(VJU) : Standard symbol
Model name RXLQ72TATJU RXLQ96TATJU RXLQ120TATJU
Outdoor unit 1 RXLQ72TATJU RXLQ96TATJU RXLQ120TATJU
Model name RXLQ144TATJU RXLQ192TATJU RXLQ240TATJU
Outdoor unit 1 RXLQ72TATJU RXLQ96TATJU RXLQ120TATJU
Outdoor unit 2 RXLQ72TATJU RXLQ96TATJU RXLQ120TATJU
Model name RXLQ72TAYDU RXLQ96TAYDU RXLQ120TAYDU
Outdoor unit 1 RXLQ72TAYDU RXLQ96TAYDU RXLQ120TAYDU
Model name RXLQ144TAYDU RXLQ192TAYDU RXLQ240TAYDU
Outdoor unit 1 RXLQ72TAYDU RXLQ96TAYDU RXLQ120TAYDU
Outdoor unit 2 RXLQ72TAYDU RXLQ96TAYDU RXLQ120TAYDU
Model name RXLQ72TAYCU RXLQ96TAYCU RXLQ120TAYCU
Outdoor unit 1 RXLQ72TAYCU RXLQ96TAYCU RXLQ120TAYCU
Model name RXLQ144TAYCU RXLQ192TAYCU RXLQ240TAYCU
Outdoor unit 1 RXLQ72TAYCU RXLQ96TAYCU RXLQ120TAYCU
Outdoor unit 2 RXLQ72TAYCU RXLQ96TAYCU RXLQ120TAYCU
Model name RXYQ72TAYCU RXYQ96TAYCU RXYQ120TAYCU RXYQ144TAYCU RXYQ168TAYCU
Outdoor unit 1 RXYQ72TAYCU RXYQ96TAYCU RXYQ120TAYCU RXYQ144TAYCU RXYQ168TAYCU
Model name RXYQ192TAYCU RXYQ216TAYCU RXYQ240TAYCU RXYQ264TAYCU RXYQ288TAYCU
Outdoor unit 1 RXYQ96TAYCU RXYQ96TAYCU RXYQ120TAYCU RXYQ120TAYCU RXYQ144TAYCU
Outdoor unit 2 RXYQ96TAYCU RXYQ120TAYCU RXYQ120TAYCU RXYQ144TAYCU RXYQ144TAYCU
Model name RXYQ312TAYCU RXYQ336TAYCU RXYQ360TAYCU RXYQ384TAYCU
Outdoor unit 1 RXYQ144TAYCU RXYQ168TAYCU RXYQ120TAYCU RXYQ120TAYCU
Outdoor unit 2 RXYQ168TAYCU RXYQ168TAYCU RXYQ120TAYCU RXYQ120TAYCU
Outdoor unit 3 — — RXYQ120TAYCU RXYQ144TAYCU
Series Model Name Power Supply, Standard
FXMQ 48MF 72MF 96MF VJU
Series Model Name Power Supply, Standard
VAM 300G 470G 600G 1200G VJU

SiUS341802E External Appearance
General Information 4
2. External Appearance
2.1 Indoor Unit
Ceiling mounted cassette (Round flow with sensing) type
FXFQ-T
Shown with BYCQ125B-W1
Ceiling mounted duct type (Middle and high static pressure)
FXMQ-PB
Ceiling mounted cassette (Round flow) type
FXFQ-P
Shown with BYCP125K-W1
Ceiling mounted duct type
FXMQ-M
4 way ceiling mounted cassette (2’×2’) type
FXZQ-TA
Shown with BYFQ60C3W1W
Ceiling suspended type
FXHQ-M
4 way ceiling mounted cassette (2’×2’) type
FXZQ-M
Shown with BYFQ60B8W1U
Wall mounted type
FXAQ-P
4-way blow ceiling-suspended type
FXUQ-P
Floor standing type
FXLQ-M
One way blow cassette type
FXEQ-P
Concealed floor standing type
FXNQ-M
Slim ceiling mounted duct type
FXDQ-M
Air handling unit
FXTQ-TA
Ceiling mounted duct type (Middle static pressure)
FXSQ-TA

External Appearance SiUS341802E
5General Information
2.2 Outdoor Unit
Single Outdoor Unit
Double Outdoor Unit
Triple Outdoor Unit
RXLQ72/96/120TATJU
RXLQ72/96/120TAYDU
RXLQ72/96/120TAYCU
RXYQ72/96/120/144/168TAYCU
RXLQ144/192/240TATJU
RXLQ144/192/240TAYDU
RXLQ144/192/240TAYCU
RXYQ192/216/240/264/288/312/336TAYCU
RXYQ360/384TAYCU

SiUS341802E External Appearance
General Information 6
2.3 Air Treatment Equipment
Outdoor-air processing unit
FXMQ-MF
Energy recovery ventilator
(VAM series)
VAM-G

Combination of Outdoor Units SiUS341802E
7General Information
3. Combination of Outdoor Units
3.1 RXLQ-TATJU, RXLQ-TAYDU, RXLQ-TAYCU
Note: 1 For multiple connection, the outdoor unit multi connection piping kit (separately sold) is required.
3.2 RXYQ-TAYCU
Note: 1 For multiple connection, the outdoor unit multi connection piping kit (separately sold) is required.
System capacity Number of
units
Module Outdoor Unit Multi Connection
Piping Kit 1
Ton HP kW 72 96 120
6 7.5 21.1 1 O
—8 10 28.1 1 O
10 12.5 35.2 1 O
12 15 42.2 2 OO
BHFP22P100U16 20 56.3 2 OO
20 25 70.3 2 OO
System capacity Number of
units
Module Outdoor Unit Multi Connection
Piping Kit 1
Ton HP kW 72 96 120 144 168
6 7.5 21.1 1 O
—
8 10 28.1 1 O
10 12.5 35.2 1 O
12 15 42.2 1 O
14 17.5 49.2 1 O
16 20 56.3 2 OO
BHFP22P100U
18 22.5 63.3 2 OO
20 25 70.3 2 OO
22 27.5 77.4 2 OO
24 30 84.4 2 OO
26 32.5 91.4 2 OO
28 35 98.5 2 OO
30 37.5 105.5 3 OOO
BHFP22P151U
32 40 112.5 3 OO O