Daikin REYQ-XA User manual

Service
Manual
SiUS371901E
REYQ72-456XATJU
REYQ72-456XAYDU
REYQ72-432XAYCU
Heat Recovery 60 Hz

SiUS371901E
iTable of Contents
REYQ-XA
Heat Recovery
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 ................................................................................................. 3
1.3 Air Treatment Equipment ............................................................................. 4
1.4 Branch Selector Unit .................................................................................... 4
2. External Appearance...................................................................................5
2.1 Indoor Unit.................................................................................................... 5
2.2 Outdoor Unit ................................................................................................. 6
2.3 Air Treatment Equipment ............................................................................. 7
2.4 Branch Selector Unit .................................................................................... 7
3. Combination of Outdoor Units.....................................................................8
3.1 REYQ-XATJU, REYQ-XAYDU, REYQ-XAYCU ........................................... 8
4. Capacity Range...........................................................................................9
4.1 Connection Ratio.......................................................................................... 9
4.2 Outdoor Unit Combinations .......................................................................... 9
4.3 Limitation of Capacity Index for Heat Recovery ......................................... 10
5. Specifications ............................................................................................11
5.1 REYQ-XATJU............................................................................................. 11
5.2 REYQ-XAYDU............................................................................................ 28
5.3 REYQ-XAYCU............................................................................................ 45
Part 2 Refrigerant Circuit .............................................................. 61
1. Refrigerant Circuit .....................................................................................62
1.1 Outdoor Unit ............................................................................................... 62
1.2 Indoor Unit.................................................................................................. 65
1.3 Outdoor-Air Processing Unit....................................................................... 67
1.4 Branch Selector Unit .................................................................................. 68
2. Functional Parts Layout ............................................................................74

SiUS371901E
Table of Contents ii
2.1 REYQ72/96/120XATJU, REYQ72/96/120XAYDU,
REYQ72/96/120XAYCU............................................................................. 74
2.2 REYQ144/168XATJU, REYQ144/168XAYDU,
REYQ144/168XAYCU................................................................................ 76
3. Refrigerant Flow for Each Operation Mode...............................................78
3.1 Cooling Operation ...................................................................................... 78
3.2 Heating Operation ...................................................................................... 79
3.3 Simultaneous Cooling and Heating Operation ........................................... 80
3.4 Cooling Oil Return Operation ..................................................................... 81
3.5 Defrost Heating Oil Return Operation ........................................................ 82
3.6 Oil Return Operation at Simultaneous Cooling and Heating Operation ..... 83
Part 3 Remote Controller ............................................................... 84
1. Applicable Models .....................................................................................85
2. Names and Functions ...............................................................................86
2.1 BRC1E73 ................................................................................................... 86
2.2 Wireless Remote Controller ....................................................................... 89
3. Main/Sub Setting.......................................................................................90
3.1 BRC1E73 ................................................................................................... 90
3.2 When Wireless Remote Controller is Used Together................................. 91
4. Address Setting for Wireless Remote Controller.......................................92
5. Centralized Control Group No. Setting......................................................94
5.1 BRC1E73 ................................................................................................... 94
5.2 Wireless Remote Controller ....................................................................... 96
5.3 Group No. Setting Example........................................................................ 97
6. Service Settings Menu, Maintenance Menu..............................................98
6.1 BRC1E73 ................................................................................................... 98
Part 4 Functions and Control....................................................... 102
1. Function General.....................................................................................104
1.1 Outdoor Unit ............................................................................................. 104
1.2 Branch Selector Unit & Indoor Unit Operation Mode Detail ..................... 105
2. Stop Control ............................................................................................106
2.1 Stop due to Error...................................................................................... 106
2.2 When System is in Stop Control............................................................... 106
2.3 Slave Unit Stops during Master Unit Control............................................ 106
3. Standby Control ......................................................................................107
3.1 Restart Standby........................................................................................ 107
3.2 Crankcase Heater Control........................................................................ 107
4. Startup Control ........................................................................................108
4.1 Startup Control in Cooling ........................................................................ 108
4.2 Startup Control in Heating ........................................................................ 109
5. Basic Control...........................................................................................110
5.1 Normal Control ......................................................................................... 110
5.2 Compressor PI Control............................................................................. 111

SiUS371901E
iii Table of Contents
5.3 Compressor Step Control......................................................................... 112
5.4 Electronic Expansion Valve PI Control..................................................... 114
5.5 Step Control of Outdoor Fans .................................................................. 115
5.6 Heat Exchanger Control ........................................................................... 116
6. Protection Control ...................................................................................117
6.1 High Pressure Protection Control............................................................. 117
6.2 Low Pressure Protection Control.............................................................. 119
6.3 Discharge Pipe Protection Control ........................................................... 120
6.4 Compressor Body Protection Control....................................................... 121
6.5 Inverter Protection Control ....................................................................... 121
7. Special Control........................................................................................123
7.1 Pump Down Residual Control .................................................................. 123
7.2 Oil Return Control..................................................................................... 124
7.3 Defrost Control ......................................................................................... 127
7.4 Outdoor Unit Rotation............................................................................... 128
7.5 Cooling/Heating Mode Switching ............................................................. 129
8. Other Control...........................................................................................133
8.1 Backup Operation..................................................................................... 133
8.2 Demand Operation ................................................................................... 133
8.3 Heating Operation Prohibition .................................................................. 133
9. Outline of Control (Indoor Unit) ...............................................................134
9.1 Operation Flowchart ................................................................................. 134
9.2 Set Temperature and Control Temperature ............................................. 138
9.3 Remote Controller Thermistor .................................................................. 140
9.4 Thermostat Control................................................................................... 142
9.5 Drain Pump Control.................................................................................. 145
9.6 Control of Electronic Expansion Valve ..................................................... 147
9.7 Freeze-Up Prevention .............................................................................. 148
9.8 List of Swing Flap Operations .................................................................. 150
9.9 Hot Start Control (In Heating Only) .......................................................... 151
9.10 Louver Control for Preventing Ceiling Dirt................................................ 152
9.11 Heater Control (Except FXTQ-TA Models)............................................... 153
9.12 Heater Control (FXTQ-TA Models)........................................................... 154
9.13 Gas Furnace Control (CXTQ-TA Models) ................................................ 157
9.14 3-Step Thermostat Processing (FXTQ-TA Models) ................................. 158
9.15 Fan Control (Heater Residual) (FXTQ-TA Models) .................................. 159
9.16 Interlocked with External Equipment
(FXTQ-TA and CXTQ-TA Models) ........................................................... 159
Part 5 Field Settings and Test Operation.................................... 161
1. Field Settings for Indoor Unit...................................................................162
1.1 Field Settings with Remote Controller ...................................................... 162
1.2 List of Field Settings for Indoor Unit ......................................................... 166
1.3 Details of Field Settings for Indoor Unit.................................................... 170
1.4 Gas Furnace Set Up................................................................................. 185
1.5 List of Field Settings for Outdoor-Air Processing Unit .............................. 186
1.6 Setting of Operation Control Mode........................................................... 186

SiUS371901E
Table of Contents iv
2. Field Settings for Outdoor Unit................................................................188
2.1 DIP Switch Setting Mounting a Spare PCB.............................................. 188
2.2 Accessing the BS Buttons on the PCB..................................................... 190
2.3 Operating the BS Buttons and DIP Switches on the PCB........................ 191
2.4 Connecting the PC Configurator to the Outdoor Unit ............................... 194
2.5 Monitoring Function and Field Settings .................................................... 195
2.6 Cool/Heat Mode Changeover................................................................... 217
2.7 Night-Time Low Noise Operation and Demand Operation....................... 218
3. Test Operation ........................................................................................223
3.1 Checks before Test Operation ................................................................. 223
3.2 Checkpoints.............................................................................................. 223
3.3 Gas Furnace Test Operation.................................................................... 224
Part 6 Service Diagnosis.............................................................. 225
1. Symptom-based Troubleshooting ...........................................................228
1.1 Indoor Unit Overall ................................................................................... 228
1.2 With Gas Furnace .................................................................................... 231
1.3 Gas Furnace Lockout Reset..................................................................... 231
1.4 With Optional Infrared Presence/Floor Sensor......................................... 232
2. Troubleshooting with Remote Controller.................................................233
2.1 Wired Remote Controller.......................................................................... 233
2.2 Wireless Remote Controller ..................................................................... 234
3. Troubleshooting by Error Code ...............................................................236
3.1 Error Codes and Descriptions .................................................................. 236
3.2 Error Codes (Sub Codes)......................................................................... 238
3.3 External Protection Device Abnormality ................................................... 251
3.4 Indoor Unit Control PCB Abnormality....................................................... 253
3.5 Drain Level Control System Abnormality.................................................. 254
3.6 Indoor Fan Motor Lock, Overload............................................................. 256
3.7 Indoor Fan Motor Abnormality.................................................................. 258
3.8 Overload/Overcurrent/Lock of Indoor Fan Motor...................................... 262
3.9 Blower Motor Not Running ....................................................................... 263
3.10 Indoor Fan Motor Status Abnormality....................................................... 264
3.11 Low Indoor Airflow.................................................................................... 265
3.12 Swing Flap Motor Abnormality ................................................................. 266
3.13 Power Supply Voltage Abnormality .......................................................... 268
3.14 Blower Motor Stops for Over/Under Voltage ............................................ 269
3.15 Electronic Expansion Valve Coil Abnormality, Dust Clogging .................. 270
3.16 Gas Furnace Abnormality......................................................................... 271
3.17 Drain Level above Limit............................................................................ 272
3.18 Capacity Determination Device Abnormality ............................................ 273
3.19 Transmission Abnormality between Indoor Unit Control PCB and
Fan PCB................................................................................................... 274
3.20 Blower Motor Communication Error ......................................................... 276
3.21 Climate Talk Communication Error .......................................................... 277
3.22 Thermistor Abnormality ............................................................................ 278
3.23 Combination Error between Indoor Unit Control PCB and Fan PCB ....... 279

SiUS371901E
vTable of Contents
3.24 Blower Motor HP Mismatch...................................................................... 280
3.25 Indoor Blower Does Not Have Required Parameters to Function............ 281
3.26 Remote Sensor Abnormality .................................................................... 282
3.27 Humidity Sensor System Abnormality ...................................................... 283
3.28 Infrared Presence/Floor Sensor Error ...................................................... 284
3.29 Remote Controller Thermistor Abnormality .............................................. 289
3.30 Outdoor Unit Main PCB Abnormality........................................................ 290
3.31 Detection of Ground Leakage by Leak Detection Circuit ......................... 291
3.32 Missing of Ground Leakage Detection Core ............................................ 292
3.33 Activation of High Pressure Switch .......................................................... 293
3.34 Activation of Low Pressure Sensor .......................................................... 295
3.35 Compressor Motor Lock ........................................................................... 296
3.36 Compressor Damage Alarm..................................................................... 298
3.37 Outdoor Fan Motor Abnormality ............................................................... 300
3.38 Electronic Expansion Valve Coil Abnormality........................................... 304
3.39 Discharge Pipe Temperature Abnormality ............................................... 305
3.40 Wet Alarm................................................................................................. 307
3.41 Refrigerant Overcharged.......................................................................... 309
3.42 Branch Selector Unit Electronic Expansion Valve Abnormality................ 310
3.43 Harness Abnormality
(between Outdoor Unit Main PCB and Inverter PCB) .............................. 311
3.44 Outdoor Fan Motor Signal Abnormality .................................................... 312
3.45 Outdoor Fan PCB Abnormality................................................................. 313
3.46 Thermistor Abnormality ............................................................................ 314
3.47 High Pressure Sensor Abnormality .......................................................... 316
3.48 Low Pressure Sensor Abnormality ........................................................... 317
3.49 Inverter PCB Abnormality......................................................................... 318
3.50 Momentary Power Failure during Test Operation .................................... 320
3.51 Reactor Temperature Rise Abnormality ................................................... 321
3.52 Inverter Radiation Fin Temperature Rise Abnormality ............................. 322
3.53 Compressor Instantaneous Overcurrent .................................................. 325
3.54 Compressor Overcurrent.......................................................................... 327
3.55 Compressor Startup Abnormality ............................................................. 329
3.56 Transmission Error between Inverter PCB and
Outdoor Unit Main PCB............................................................................ 331
3.57 Power Supply Voltage Imbalance ............................................................ 333
3.58 Reactor Surface Thermistor Abnormality ................................................. 335
3.59 Inverter Radiation Fin Temperature Abnormality ..................................... 336
3.60 Field Setting after Replacing Outdoor Unit Main PCB Abnormality or
Combination of PCB Abnormality............................................................. 338
3.61 Refrigerant Shortage ................................................................................ 339
3.62 Reverse Phase, Open Phase................................................................... 340
3.63 Power Supply Insufficient or Instantaneous Abnormality ......................... 342
3.64 Check Operation Not Executed................................................................ 344
3.65 Transmission Error between Indoor Units and Outdoor Units,
Open Phase in Power Supply Wiring ....................................................... 345
3.66 Transmission Error between Remote Controller and Indoor Unit............. 348
3.67 Transmission Error between Outdoor Units ............................................. 349

SiUS371901E
Table of Contents vi
3.68 Transmission Error between Main and Sub Remote Controllers ............. 355
3.69 Transmission Error between Indoor Units and
Outdoor Units in the Same System .......................................................... 356
3.70 Improper Combination of Indoor, Branch Selector and Outdoor Units..... 357
3.71 Incorrect Gas Furnace Connecting Number............................................. 364
3.72 Incorrect Electric Heater Capacity Setting................................................ 365
3.73 Address Duplication of Centralized Controller.......................................... 366
3.74 Transmission Error between Centralized Controller and Indoor Unit ....... 367
3.75 System Not Set Yet .................................................................................. 369
3.76 System Abnormality, Refrigerant System Address Undefined ................. 370
3.77 Climate Talk Communication System Combination Error
(Before Initial Setting for Communication Completes) ............................. 372
3.78 Climate Talk Communication System Combination Error
(After Initial Setting for Communication Completes) ................................ 373
4. Check ......................................................................................................374
4.1 High Pressure Check ............................................................................... 374
4.2 Low Pressure Check ................................................................................ 375
4.3 Superheat Operation Check..................................................................... 376
4.4 Power Transistor Check ........................................................................... 377
4.5 Refrigerant Overcharge Check................................................................. 382
4.6 Refrigerant Shortage Check..................................................................... 383
4.7 Vacuuming and Dehydration Procedure .................................................. 384
4.8 Thermistor Check ..................................................................................... 385
4.9 Pressure Sensor Check ........................................................................... 388
4.10 Broken Wire Check of the Relay Wires .................................................... 389
4.11 Fan Motor Connector Check (Power Supply Cable) ................................ 390
4.12 Fan Motor Connector Check (Signal Cable) ............................................ 391
4.13 Electronic Expansion Valve Coil Check ................................................... 393
4.14 Fan Motor Connector Check for FXTQ-TA............................................... 396
Part 7 Appendix............................................................................ 400
1. Wiring Diagrams......................................................................................401
1.1 Outdoor Unit ............................................................................................. 401
1.2 Indoor Unit................................................................................................ 406
1.3 Air Treatment Equipment ......................................................................... 420
1.4 Branch Selector Unit ................................................................................ 423

Safety Cautions SiUS371901E
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.

SiUS371901E 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-410A refrigerant models, be sure to use pipes, flare nuts and
tools intended for 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 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 SiUS371901E
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.

SiUS371901E 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-410A) 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 SiUS371901E
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 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.

SiUS371901E 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.

SiUS371901E
1General Information
Part 1
General Information
1. Model Names ..............................................................................................2
1.1 Indoor Unit.................................................................................................... 2
1.2 Outdoor Unit ................................................................................................. 3
1.3 Air Treatment Equipment ............................................................................. 4
1.4 Branch Selector Unit .................................................................................... 4
2. External Appearance...................................................................................5
2.1 Indoor Unit.................................................................................................... 5
2.2 Outdoor Unit ................................................................................................. 6
2.3 Air Treatment Equipment ............................................................................. 7
2.4 Branch Selector Unit .................................................................................... 7
3. Combination of Outdoor Units.....................................................................8
3.1 REYQ-XATJU, REYQ-XAYDU, REYQ-XAYCU ........................................... 8
4. Capacity Range...........................................................................................9
4.1 Connection Ratio.......................................................................................... 9
4.2 Outdoor Unit Combinations .......................................................................... 9
4.3 Limitation of Capacity Index for Heat Recovery ......................................... 10
5. Specifications ............................................................................................11
5.1 REYQ-XATJU............................................................................................. 11
5.2 REYQ-XAYDU............................................................................................ 28
5.3 REYQ-XAYCU............................................................................................ 45

SiUS371901E Model Names
General Information 2
1. Model Names
1.1 Indoor Unit
VJ : 1 phase, 208/230 V, 60 Hz
SBL : 1 phase, 115 V, 60 Hz
U(VJU) : 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
VISTA™ 2'×2' cassette type FXZQ 05TA 07TA 09TA 12TA 15TA 18TA ——————————
4 way blow ceiling suspended type FXUQ——————18P24P30P36P——————
OnewayblowcassettetypeFXEQ—07P09P12P15P18P—24P————————
Slim ceiling mounted duct type FXDQ—07M09M12M—18M—24M————————
MSP concealed ducted type FXSQ 05TA 07TA 09TA 12TA 15TA 18TA — 24TA 30TA 36TA — 48TA 54TA ———
Ceiling mounted duct type
(Middle and high static pressure)
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 ————————
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
CasedCoilUnit CXTQ——————— 24TA — 36TA — 48TA — 60TA —— SBLU

Model Names SiUS371901E
3General Information
1.2 Outdoor Unit
REYQ-XATJU (208/230 V)
TJ : 3 phase, 208/230 V, 60 Hz
U(TJU) : Standard symbol
REYQ-XAYDU (460 V)
YD : 3 phase, 460 V, 60 Hz
U(YDU): Standard symbol
REYQ-XAYCU (575 V)
YC : 3 phase, 575 V, 60 Hz
U(YCU): Standard symbol
Capacity range (ton) 6 8 10 12 14 16 Power supply,
Standard
Capacity index 72 96 120 144 168 192
Heat recovery REYQ 72XA 96XA 120XA 144XA 168XA 192XA TJU
Capacity range (ton) 18 20 22 24 26 28 Power supply,
Standard
Capacity index 216 240 264 288 312 336
Heat recovery REYQ 216XA 240XA 264XA 288XA 312XA 336XA TJU
Capacity range (ton) 30 32 34 36 38 Power supply,
Standard
Capacity index 360 384 408 432 456
Heat recovery REYQ 360XA 384XA 408XA 432XA 456XA TJU
Capacity range (ton) 6 8 10 12 14 16 Power supply,
Standard
Capacity index 72 96 120 144 168 192
Heat recovery REYQ 72XA 96XA 120XA 144XA 168XA 192XA YDU
Capacity range (ton) 18 20 22 24 26 28 Power supply,
Standard
Capacity index 216 240 264 288 312 336
Heat recovery REYQ 216XA 240XA 264XA 288XA 312XA 336XA YDU
Capacity range (ton) 30 32 34 36 38 Power supply,
Standard
Capacity index 360 384 408 432 456
Heat recovery REYQ 360XA 384XA 408XA 432XA 456XA YDU
Capacity range (ton) 6 8 10 12 14 16 Power supply,
Standard
Capacity index 72 96 120 144 168 192
Heat recovery REYQ 72XA 96XA 120XA 144XA 168XA 192XA YCU
Capacity range (ton) 18 20 22 24 26 28 Power supply,
Standard
Capacity index 216 240 264 288 312 336
Heat recovery REYQ 216XA 240XA 264XA 288XA 312XA 336XA YCU
Capacity range (ton) 30 32 34 36 Power supply,
Standard
Capacity index 360 384 408 432
Heat recovery REYQ 360XA 384XA 408XA 432XA YCU

SiUS371901E Model Names
General Information 4
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
1.4 Branch Selector Unit
Single Branch Selector Unit
Note: No interchangeability with BSVQ36/60/96PVJU.
VJ: 1 phase, 208/230 V, 60 Hz
Multi Branch Selector Unit
Note: No interchangeability with BSV4/6Q36PVJU.
VJ: 1 phase, 208/230 V, 60 Hz
Series Model name Power supply, Standard
FXMQ 48MF 72MF 96MF VJU
Series Model name Power supply, Standard
VAM 300G 470G 600G 1200G VJU
Series Model name Power supply, Standard
Heat recovery BSQ 36T 60T 96T VJ
Series Model name Power supply, Standard
Heat recovery BS 4Q54T 6Q54T 8Q54T 10Q54T 12Q54T VJ

External Appearance SiUS371901E
5General Information
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
FXMQ-M
VISTA™ 2’×2’ cassette type
FXZQ-TA
Shown with BYFQ60C3W1W
Ceiling suspended type
FXHQ-M
4 way blow ceiling suspended type
FXUQ-P
Wall mounted type
FXAQ-P
One way blow cassette type
FXEQ-P
Floor standing type
FXLQ-M
Slim ceiling mounted duct type
FXDQ-M
Concealed floor standing type
FXNQ-M
MSP concealed ducted type
FXSQ-TA
Air handling unit
FXTQ-TA
Ceiling mounted duct type (Middle and high static pressure)
FXMQ-PB
Cased coil unit
CXTQ-TA

SiUS371901E External Appearance
General Information 6
2.2 Outdoor Unit
Single Outdoor Unit
Double Outdoor Unit
Triple Outdoor Unit
REYQ72/96/120/144/168XATJU
REYQ72/96/120/144/168XAYDU
REYQ72/96/120/144/168XAYCU
REYQ192/216/240/264/288/312/336XATJU
REYQ192/216/240/264/288/312/336XAYDU
REYQ192/216/240/264/288/312/336XAYCU
REYQ360/384/408/432/456XATJU
REYQ360/384/408/432/456XAYDU
REYQ360/384/408/432XAYCU

External Appearance SiUS371901E
7General Information
2.3 Air Treatment Equipment
2.4 Branch Selector Unit
Outdoor-air processing unit
FXMQ-MF
Energy recovery ventilator
(VAM series)
VAM-G
Single branch selector unit
BSQ-T
Multi branch selector unit
BS-Q54T