Daikin VRV EMERION RXYQ-AATJA User manual

Service
Manual
Heat Pump 60 Hz
RXYQ-AATJA, 208/230 V
RXYQ-AAYDA, 460 V
SiUS342303E

SiUS342303E
iTable of Contents
Introduction ....................................................................................... 1
1. Safety Cautions...........................................................................................2
1.1 Warnings and Cautions Regarding Safety of Workers................................. 2
1.2 Warnings and Cautions Regarding Safety of Users..................................... 4
2. Icons Used ..................................................................................................7
3. Revision History ..........................................................................................8
Part 1 General Information ............................................................... 9
1. Model Names ............................................................................................10
1.1 Outdoor Unit ............................................................................................... 10
1.2 Indoor Unit.................................................................................................. 11
1.3 Air Treatment Equipment ........................................................................... 11
2. External Appearance.................................................................................12
2.1 Outdoor Unit ............................................................................................... 12
2.2 Indoor Unit.................................................................................................. 14
2.3 Air Treatment Equipment ........................................................................... 15
3. Combination of Outdoor Units...................................................................16
4. Capacity Range.........................................................................................17
4.1 Connection Ratio........................................................................................ 17
4.2 Outdoor Unit Combinations ........................................................................ 18
5. Specifications ............................................................................................19
5.1 RXYQ-AATJA............................................................................................. 19
5.2 RXYQ-AAYDA............................................................................................ 28
Part 2 Refrigerant Circuit................................................................ 37
1. Refrigerant Circuit (Piping Diagrams) .......................................................38
1.1 Outdoor Unit ............................................................................................... 38
1.2 Indoor Unit.................................................................................................. 43
1.3 Indoor Low-Temperature Hydrobox ........................................................... 45
1.4 Outdoor-Air Processing Unit....................................................................... 46
2. Functional Parts Layout ............................................................................47
2.1 RXYQ72AA ................................................................................................ 47
2.2 RXYQ96/120AA ......................................................................................... 49
2.3 RXYQ144/168AA ....................................................................................... 51
2.4 RXYQ192/216/240AA ................................................................................ 53
3. Refrigerant Flow for Each Operation Mode...............................................55
3.1 RXYQ72AA ................................................................................................ 55
3.2 RXYQ96/120/144/168AA ........................................................................... 59
3.3 RXYQ192/216/240AA ................................................................................ 63
Part 3 Remote Controller ................................................................ 67
1. Applicable Models .....................................................................................68
2. Names and Functions ...............................................................................69
2.1 BRC1E73 ................................................................................................... 69
2.2 BRC1H71W................................................................................................ 72

SiUS342303E
Table of Contents ii
2.3 Wireless Remote Controller ....................................................................... 80
3. Main/Sub Setting.......................................................................................81
3.1 BRC1E73 ................................................................................................... 81
3.2 BRC1H71W................................................................................................ 83
3.3 When Wireless Remote Controller is Used Together................................. 85
4. Address Setting for Wireless Remote Controller.......................................86
5. Centralized Control Group No. Setting......................................................88
5.1 BRC1E73 ................................................................................................... 88
5.2 BRC1H71W................................................................................................ 90
5.3 Wireless Remote Controller ....................................................................... 90
5.4 Group No. Setting Example........................................................................ 91
6. Service Settings Menu, Maintenance Menu..............................................92
6.1 BRC1E73 ................................................................................................... 92
7. Administrator Menu, Installer Menu ..........................................................96
7.1 BRC1H71W................................................................................................ 96
Part 4 Functions and Control .......................................................... 97
1. Operation Flowchart..................................................................................99
2. Stop Control ............................................................................................100
2.1 Stop due to Error ...................................................................................... 100
2.2 When System is in Stop Control............................................................... 100
2.3 Sub Unit Stops during Master Unit Control .............................................. 100
3. Standby Control ......................................................................................101
3.1 Restart Standby........................................................................................ 101
3.2 Crankcase Heater Control........................................................................ 101
4. Startup Control ........................................................................................102
4.1 Startup Control in Cooling ........................................................................ 102
4.2 Startup Control in Heating ........................................................................ 102
5. Basic Control...........................................................................................103
5.1 Normal Control ......................................................................................... 103
5.2 Compressor PI Control............................................................................. 104
5.3 Compressor Step Control......................................................................... 105
5.4 Electronic Expansion Valve PI Control..................................................... 109
5.5 Step Control of Outdoor Fans .................................................................. 110
6. Protection Control ...................................................................................111
6.1 High Pressure Protection Control............................................................. 111
6.2 Low Pressure Protection Control.............................................................. 112
6.3 Discharge Pipe Protection Control ........................................................... 112
6.4 Inverter Protection Control ....................................................................... 113
7. Special Control........................................................................................115
7.1 Pump Down Residual Operation .............................................................. 115
7.2 Oil Return Operation ................................................................................ 116
7.3 Defrost Operation ..................................................................................... 118
7.4 Outdoor Unit Rotation............................................................................... 119
8. Other Control...........................................................................................120
8.1 Backup Operation..................................................................................... 120
8.2 Heating Operation Prohibition .................................................................. 120

SiUS342303E
iii Table of Contents
9. Outline of Control (Indoor Unit) ...............................................................121
9.1 Operation Flowchart ................................................................................. 121
9.2 Set Temperature and Control Target Temperature.................................. 125
9.3 Remote Controller Thermistor .................................................................. 127
9.4 Thermostat Control................................................................................... 129
9.5 Drain Pump Control.................................................................................. 132
9.6 Control of Electronic Expansion Valve ..................................................... 134
9.7 Freeze-Up Prevention Control.................................................................. 135
9.8 List of Swing Flap Operations .................................................................. 137
9.9 Hot Start Control (In Heating Operation Only).......................................... 138
9.10 Louver Control for Preventing Ceiling Dirt................................................ 139
9.11 Heater Control (Except FXTQ-TA Models)............................................... 140
9.12 Heater Control (FXTQ-TA Models)........................................................... 141
9.13 Gas Furnace Control (CXTQ-TA Models) ................................................ 144
9.14 3-Step Thermostat Processing (FXTQ-TA Models) ................................. 145
9.15 Fan Control (Heater Residual) (FXTQ-TA Models) .................................. 146
9.16
Interlocked with External Equipment (FXTQ-TA and CXTQ-TA Models) ... 146
Part 5 Field Settings and Test Operation ..................................... 148
1. Field Settings for Indoor Unit...................................................................149
1.1 Field Settings with Remote Controller ...................................................... 149
1.2 List of Field Settings for Indoor Unit ......................................................... 155
1.3 Applicable Field Settings .......................................................................... 157
1.4 Details of Field Settings for Indoor Unit.................................................... 161
1.5 Field Settings of Low-Temperature Hydrobox.......................................... 178
1.6 Gas Furnace Set Up................................................................................. 179
1.7 List of Field Settings for Outdoor-Air Processing Unit .............................. 180
1.8 Setting of Operation Control Mode........................................................... 180
2. Field Setting from Outdoor Unit...............................................................182
2.1 DIP Switch Setting when Mounting a Spare PCB .................................... 182
2.2 Accessing the BS Buttons on the PCB..................................................... 184
2.3 Operating the BS Buttons and DIP Switches on the PCB........................ 185
2.4 Monitoring Function and Field Settings .................................................... 188
2.5 Night-Time Low Noise Operation and Demand Operation....................... 210
2.6 Energy Saving and Optimum Operation................................................... 215
3. Test Operation ........................................................................................218
3.1 Precautions Before Starting Test Operation............................................. 218
3.2 Test Operation Procedure ........................................................................ 220
3.3 Correcting after Abnormal Completion ..................................................... 221
3.4 Error Code................................................................................................ 221
3.5 Low-Temperature Hydrobox Test Operation............................................ 221
3.6 Gas Furnace Test Operation.................................................................... 222
Part 6 Service Diagnosis ............................................................... 223
1. Symptom-based Troubleshooting ...........................................................226
1.1 General Troubleshooting.......................................................................... 226
1.2 Low-Temperature Hydrobox Overall ........................................................ 229

SiUS342303E
Table of Contents iv
1.3 With Gas Furnace .................................................................................... 229
1.4 Gas Furnace Lockout Reset..................................................................... 229
1.5 With Infrared Presence/Floor Sensor ....................................................... 230
2. Troubleshooting with Remote Controller.................................................231
2.1 BRC1E73 ................................................................................................. 231
2.2 BRC1H71W.............................................................................................. 232
2.3 Wireless Remote Controller ..................................................................... 232
3. Troubleshooting by Error Code ...............................................................234
3.1 Error Codes and Descriptions .................................................................. 234
3.2 Error Codes (Sub Codes)......................................................................... 236
3.3 Prediction Codes ...................................................................................... 245
3.4 External Protection Device Abnormality ................................................... 249
3.5 Indoor Unit Control PCB Abnormality....................................................... 251
3.6 Drain Level Control System Abnormality.................................................. 252
3.7 Indoor Fan Motor Lock, Overload............................................................. 254
3.8 Indoor Fan Motor Abnormality.................................................................. 256
3.9 Overload/Overcurrent/Lock of Indoor Fan Motor...................................... 260
3.10 Blower Motor Not Running ....................................................................... 261
3.11 Indoor Fan Motor Status Abnormality....................................................... 262
3.12 Low Indoor Airflow.................................................................................... 263
3.13 Swing Flap Motor Abnormality ................................................................. 264
3.14 Power Supply Voltage Abnormality.......................................................... 266
3.15 Blower Motor Stops for Over/Under Voltage ............................................ 267
3.16 Electronic Expansion Valve Coil Abnormality, Dust Clogging .................. 268
3.17 Gas Furnace Abnormality......................................................................... 269
3.18 Drain Level above Limit............................................................................ 270
3.19 Self-Cleaning Decoration Panel Abnormality ........................................... 271
3.20 Capacity Determination Device Abnormality ............................................ 282
3.21 Transmission Abnormality between Indoor Unit Control PCB and Fan
PCB .......................................................................................................... 283
3.22 Blower Motor Communication Error ......................................................... 285
3.23 Climate Talk Communication Error .......................................................... 286
3.24 Thermistor Abnormality ............................................................................ 287
3.25 Combination Error between Indoor Unit Control PCB and Fan PCB ....... 288
3.26 Blower Motor HP Mismatch...................................................................... 289
3.27 Indoor Blower Does Not Have Required Parameters to Function............ 290
3.28 Remote Sensor Abnormality .................................................................... 291
3.29 Humidity Sensor System Abnormality ...................................................... 292
3.30 Infrared Presence/Floor Sensor Error ...................................................... 293
3.31 Remote Controller Thermistor Abnormality .............................................. 298
3.32 Outdoor Unit Main/Sub PCB Abnormality ................................................ 299
3.33 Detection of Ground Leakage by Leak Detection Circuit ......................... 300
3.34 Missing of Ground Leakage Detection Core ............................................ 301
3.35 Activation of High Pressure Switch .......................................................... 302
3.36 Activation of Low Pressure Sensor .......................................................... 304
3.37 Compressor Motor Lock ........................................................................... 305
3.38 Compressor Damage Alarm..................................................................... 307
3.39 Outdoor Fan Motor Abnormality............................................................... 309

SiUS342303E
vTable of Contents
3.40 Electronic Expansion Valve Coil Abnormality or Sub PCB Momentary
Overcurrent .............................................................................................. 311
3.41 Discharge Pipe Temperature Abnormality ............................................... 312
3.42 Wet Alarm................................................................................................. 314
3.43 Refrigerant Overcharged.......................................................................... 316
3.44 Thermistor Abnormality ............................................................................ 317
3.45 Harness Abnormality (between Outdoor Unit Main PCB and Inverter
PCB)......................................................................................................... 318
3.46 Outdoor Fan PCB Abnormality................................................................. 319
3.47 High Pressure Sensor Abnormality .......................................................... 320
3.48 Low Pressure Sensor Abnormality ........................................................... 321
3.49 Inverter PCB Abnormality......................................................................... 322
3.50 Inverter Radiation Fin Temperature Rise Abnormality ............................. 324
3.51 Compressor Instantaneous Overcurrent .................................................. 327
3.52 Compressor Overcurrent.......................................................................... 329
3.53 Compressor Startup Abnormality ............................................................. 331
3.54
Transmission Error between Inverter PCB and Outdoor Unit Main PCB ... 333
3.55 Power Supply Voltage Imbalance ............................................................ 335
3.56 Inverter Radiation Fin Temperature Abnormality ..................................... 337
3.57 Field Setting Abnormality after Replacing Outdoor Unit Main PCB or
Combination of PCB Abnormality............................................................. 339
3.58 Refrigerant Shortage ................................................................................ 340
3.59 Reverse Phase, Open Phase, Power Supply Frequency Issue ............... 341
3.60 Power Supply Insufficient or Instantaneous Abnormality ......................... 342
3.61 Check Operation Not Executed................................................................ 344
3.62 Transmission Error between Indoor Units and Outdoor Units, Open
Phase in Power Supply Wiring ................................................................. 345
3.63 Transmission Error between Remote Controller and Indoor Unit............. 348
3.64 Transmission Error between Outdoor Units ............................................. 349
3.65 Transmission Error between Main and Sub Remote Controllers ............. 355
3.66 Transmission Error between Indoor Units and Outdoor Units in the
Same System ........................................................................................... 356
3.67 Improper Combination of Indoor Unit and Outdoor Unit........................... 357
3.68 Incorrect Gas Furnace Connecting Number............................................. 360
3.69 Incorrect Electric Heater Capacity Setting................................................ 361
3.70 Address Duplication of Centralized Controller.......................................... 362
3.71 Transmission Error between Centralized Controller and Indoor Unit ....... 363
3.72 System Not Set Yet .................................................................................. 366
3.73 System Abnormality, Refrigerant System Address Undefined ................. 367
3.74 Climate Talk Communication System Combination Error (Before Initial
Setting for Communication Completes).................................................... 369
3.75 Climate Talk Communication System Combination Error (After Initial
Setting for Communication Completes).................................................... 370
4. Check ......................................................................................................371
4.1 High Pressure Check ............................................................................... 371
4.2 Low Pressure Check ................................................................................ 372
4.3 Superheat Operation Check..................................................................... 374
4.4 Power Transistor Check ........................................................................... 376
4.5 Refrigerant Overcharge Check................................................................. 378

SiUS342303E
Table of Contents vi
4.6 Refrigerant Shortage Check..................................................................... 379
4.7 Vacuuming and Dehydration Procedure .................................................. 380
4.8 Thermistor Check ..................................................................................... 381
4.9 Pressure Sensor Check ........................................................................... 384
4.10 Broken Wire Check of the Relay Wires .................................................... 385
4.11 Fan Motor Connector Check (Power Supply Cable) ................................ 386
4.12 Fan Motor Connector Check (Signal Cable) ............................................ 388
4.13 Electronic Expansion Valve Coil Check ................................................... 390
4.14 Fan Motor Connector Check for FXTQ-TA............................................... 392
Part 7 Appendix ............................................................................. 396
1. Wiring Diagrams......................................................................................397
1.1 Outdoor Unit ............................................................................................. 397
1.2 Indoor Unit................................................................................................ 399
1.3 Air Treatment Equipment ......................................................................... 415
2. Electrical Component Box Removal........................................................418

SiUS342303E
1Introduction
1. Safety Cautions...........................................................................................2
1.1 Warnings and Cautions Regarding Safety of Workers................................. 2
1.2 Warnings and Cautions Regarding Safety of Users..................................... 4
2. Icons Used ..................................................................................................7
3. Revision History ..........................................................................................8
Introduction

SiUS342303E Safety Cautions
Introduction 2
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 an item for which caution must be exercised.
The pictogram shows the item to which attention must be paid.
This symbol indicates a prohibited action.
The prohibited item or action is shown in the illustration or near the symbol.
This symbol indicates an action that must be taken, or an 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 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
inspect 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.

Safety Cautions SiUS342303E
3Introduction
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 in 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-410A refrigerant models, be sure to use pipes, flare nuts
and tools intended for the exclusive use with the R-410A refrigerant.
The use of materials for other 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-410A) in
the refrigerant system.
If air enters the refrigerant system, an excessively high pressure results,
causing equipment damage and injury.
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.
Be sure to conduct repair work with appropriate tools.
The use of inappropriate tools may cause injury.
Warning

SiUS342303E Safety Cautions
Introduction 4
1.2 Warnings and Cautions Regarding Safety of Users
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 the 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.
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.

Safety Cautions SiUS342303E
5Introduction
Do not mix air or gas other than the specified refrigerant (R-410A) in
the refrigerant system.
If air enters the refrigerant system, an excessively high pressure results,
causing equipment damage and injury.
If the refrigerant gas leaks, be sure to locate the leaking point and
repair it before charging the refrigerant. After charging the
refrigerant, make sure that there is no leak.
If the leaking point 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 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.
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 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.
Warning

SiUS342303E Safety Cautions
Introduction 6
Be sure to measure insulation resistance after the repair, and make
sure that the resistance is 1 Mor greater.
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.
Caution

Icons Used SiUS342303E
7Introduction
2. Icons Used
The following icons are used to attract the attention of the reader to specific information.
Icon Type of
Information
Description
Warning
Warning Warning is used when there is danger of personal injury.
Caution
Caution Caution is used when there is danger that the reader,
through incorrect manipulation, may damage equipment,
lose data, get an unexpected result or have to restart (part
of) a procedure.
Note
Note Note provides information that is not indispensable, but
may nevertheless be valuable to the reader, such as tips
and tricks.
Reference
Reference 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.

SiUS342303E Revision History
Introduction 8
3. Revision History
Month / Year Version Revised contents
04 / 2023 SiUS342303E First edition

SiUS342303E
9Part 1 General Information
1. Model Names ............................................................................................10
1.1 Outdoor Unit ............................................................................................... 10
1.2 Indoor Unit.................................................................................................. 11
1.3 Air Treatment Equipment ........................................................................... 11
2. External Appearance.................................................................................12
2.1 Outdoor Unit ............................................................................................... 12
2.2 Indoor Unit.................................................................................................. 14
2.3 Air Treatment Equipment ........................................................................... 15
3. Combination of Outdoor Units...................................................................16
4. Capacity Range.........................................................................................17
4.1 Connection Ratio........................................................................................ 17
4.2 Outdoor Unit Combinations ........................................................................ 18
5. Specifications ............................................................................................19
5.1 RXYQ-AATJA............................................................................................. 19
5.2 RXYQ-AAYDA............................................................................................ 28
Part 1
General Information

SiUS342303E Model Names
Part 1 General Information 10
1. Model Names
1.1 Outdoor Unit
TJ: 3 phase, 208/230 V, 60 Hz
A: Minor revision
YD: 3 phase, 460 V, 60 Hz
A: Minor revision
RXYQ-AATJA (208/230 V)
Capacity range (ton) 6 8 10 12 14 16 18 20 22 Power supply,
Revision
Capacity index 72 96 120 144 168 192 216 240 264
Heat pump RXYQ 72AA 96AA 120AA 144AA 168AA 192AA 216AA 240AA 264AA TJA
Capacity range (ton) 24 26 28 30 32 34 36 38 40 Power supply,
Revision
Capacity index 288 312 336 360 384 408 432 456 480
Heat pump RXYQ 288AA 312AA 336AA 360AA 384AA 408AA 432AA 456AA 480AA TJA
RXYQ-AAYDA (460 V)
Capacity range (ton) 6 8 10 12 14 16 18 20 22 Power supply,
Revision
Capacity index 72 96 120 144 168 192 216 240 264
Heat pump RXYQ 72AA 96AA 120AA 144AA 168AA 192AA 216AA 240AA 264AA YDA
Capacity range (ton) 24 26 28 30 32 34 36 38 40 Power supply,
Revision
Capacity index 288 312 336 360 384 408 432 456 480
Heat pump RXYQ 288AA 312AA 336AA 360AA 384AA 408AA 432AA 456AA 480AA YDA

Model Names SiUS342303E
11 Part 1 General Information
Note(s)
1.2 Indoor Unit
VJ: 1 phase, 208/230 V, 60 Hz
SBL: 1 phase, 115 V, 60 Hz
U: Standard symbol
1. Low-temperature hydrobox index for calculating system capacity shows in below table.
Please use the index at system connection ratio calculation.
1.3 Air Treatment Equipment
VJ: 1 phase, 208/230 V, 60 Hz
U: 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*
VISTATM 2'×2'
cassette type FXZQ 05TB 07TB 09TB 12TB 15TB 18TB — — — — — — — — — —
4-way blow ceiling
suspended type FXUQ — — — — — — 18PA 24PA 30PA 36PA — — — — — —
One way blow
cassette type FXEQ — 07P 09P 12P 15P 18P — 24P — — — — — — — —
Slim ceiling mounted
duct type FXDQ — 07M 09M 12M — 18M — 24M — — — — — — — —
MSP concealed
ducted type FXSQ 05TB 07TB 09TB 12TB 15TB 18TB — 24TB 30TB 36TB — 48TB 54TB — — —
Ceiling mounted
duct type (Middle
and high static
pressure)
FXMQ — 07PB 09PB 12PB 15PB 18PB — 24PB 30PB 36PB — 48PB 54PB — — —
Ceiling mounted
duct type (High
static pressure)
FXMQ — — — — 15TB 18TB — 24TB 30TB 36TB — 48TB 54TB — — —
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 — — — — — — — —
Concealed floor
standing type FXNQ — 07M 09M 12M — 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*
Cased Coil Unit CXTQ — — — — — — — 24TA — 36TA — 48TA — 60TA — — SBLU*
Low-temperature
hydrobox (1) HXY ———————————48TA———— VJU*
Target ΔT difference [°F] 5.4 7.2 9 10.8 12.6≤
Index 25.6 34.2 42.7 48 48
Outdoor-Air Processing Unit
Series Model name Power supply,
Standard
FXMQ 48MF 72MF 96MF VJU*
Energy Recovery Ventilator (VAM series)
Series Model name Power supply,
Standard
VAM 300G 470G 600G 1200G VJU*

SiUS342303E External Appearance
Part 1 General Information 12
2. External Appearance
2.1 Outdoor Unit
Single Outdoor Unit
RXYQ72AATJA RXYQ72AAYDA
RXYQ192AATJA RXYQ216AATJA RXYQ240AATJA RXYQ192AAYDA RXYQ216AAYDA RXYQ240AAYDA
RXYQ96AATJA
RXYQ144AATJA
RXYQ120AATJA
RXYQ168AATJA
RXYQ96AAYDA
RXYQ144AAYDA
RXYQ120AAYDA
RXYQ168AAYDA
6 ton
8, 10, 12, 14 ton
16, 18, 20 ton

External Appearance SiUS342303E
13 Part 1 General Information
Double Outdoor Unit
RXYQ360AATJA RXYQ360AAYDA
30 ton
RXYQ384AATJA RXYQ408AATJA RXYQ432AATJA
RXYQ456AATJA RXYQ480AATJA
RXYQ384AAYDA RXYQ408AAYDA RXYQ432AAYDA
RXYQ456AAYDA RXYQ480AAYDA
32, 34, 36, 38, 40 ton
RXYQ264AATJA
RXYQ312AATJA
RXYQ288AATJA
RXYQ336AATJA
RXYQ264AAYDA
RXYQ312AAYDA
RXYQ288AAYDA
RXYQ336AAYDA
22, 24, 26, 28 ton