Daikin RXYQ72 Instruction manual

SiUS39 - 601
RXYQ72, 96, 144, 168, 192MTJU
R-410A Heat Pump 60Hz
RXYQ72MTJU RXYQ96MTJU RXYQ144MTJU RXYQ168MTJU RXYQ192MTJU

SiUS39-601
Table of Contents i
R-410A Heat Pump
60Hz
1. Introduction ................................................................................................ vi
1.1 Safety Cautions ............................................................................................vi
1.2 PREFACE .................................................................................................... x
Part 1 General Information .............................................................. 1
1. Model Names of Indoor/Outdoor Units........................................................2
2. External Appearance...................................................................................3
2.1 Indoor Units .................................................................................................. 3
2.2 Outdoor Units ............................................................................................... 3
3. Model Selection...........................................................................................4
Part 2 Specifications ....................................................................... 5
1. Specifications ..............................................................................................6
1.1 Outdoor Units ............................................................................................... 6
1.2 Indoor Units ................................................................................................ 11
Part 3 Refrigerant Circuit .............................................................. 23
1. Refrigerant Circuit .....................................................................................24
1.1 RXYQ72M, 96M ......................................................................................... 24
2. Functional Parts Layout ............................................................................26
2.1 RXYQ72M, 96M ......................................................................................... 26
3. Refrigerant Flow for Each Operation Mode...............................................27
Part 4 Function............................................................................... 31
1. Operation Mode ........................................................................................32
2. Basic Control.............................................................................................33
2.1 Normal Operation ....................................................................................... 33
2.2 Compressor PI Control............................................................................... 34
2.3 Electronic Expansion Valve PI Control....................................................... 38
2.4 Cooling Operation Fan Control................................................................... 39
3. Special Control..........................................................................................40
3.1 Startup Control ........................................................................................... 40
3.2 Oil Return Operation .................................................................................. 41
3.3 Defrosting Operation .................................................................................. 43
3.4 Pump-down Residual Operation ................................................................ 44
3.5 Restart Standby.......................................................................................... 45
3.6 Stopping Operation .................................................................................... 46

SiUS39-601
ii Table of Contents
3.7 Pressure Equalization prior to Startup........................................................ 48
4. Protection Control .....................................................................................49
4.1 High Pressure Protection Control............................................................... 49
4.2 Low Pressure Protection Control................................................................ 50
4.3 Discharge Pipe Protection Control ............................................................. 51
4.4 Inverter Protection Control ......................................................................... 52
4.5 STD Compressor Overload Protection....................................................... 53
5. Other Control.............................................................................................54
5.1 Outdoor Unit Rotation................................................................................. 54
5.2 Emergency Operation ................................................................................ 55
5.3 Demand Operation ..................................................................................... 57
5.4 Heating Operation Prohibition .................................................................... 57
6. Outline of Control (Indoor Unit) .................................................................58
6.1 Drain Pump Control.................................................................................... 58
6.2 Thermostat Sensor in Remote Controller................................................... 60
6.3 Freeze Prevention ...................................................................................... 62
Part 5 Test Operation .................................................................... 63
1. Test Operation ..........................................................................................64
1.1 Procedure and Outline ............................................................................... 64
1.2 Operation When Power is Turned On ........................................................ 67
2. Outdoor Unit PC Board Layout .................................................................68
3. Field Setting ..............................................................................................69
3.1 Field Setting from Remote Controller ......................................................... 69
3.2 Field Setting from Outdoor Unit.................................................................. 81
Part 6 Troubleshooting ................................................................ 105
1. Troubleshooting by Remote Controller ...................................................108
1.1 The INSPECTION / TEST Button............................................................. 108
1.2 Self-diagnosis by Wired Remote Controller ............................................. 109
1.3 Self-diagnosis by Wireless Remote Controller ......................................... 110
1.4 Operation of The Remote Controller’s Inspection /
Test Operation Button .............................................................................. 112
1.5 Remote Controller Service Mode ............................................................. 113
1.6 Remote Controller Self-Diagnosis Function ............................................. 115
2. Troubleshooting by Indication on the Remote Controller ........................120
2.1 “A0” Indoor Unit: Error of External Protection Device ............................... 120
2.2 “A1” Indoor Unit: PC Board Defect............................................................. 121
2.3 “A3” Indoor Unit: Malfunction of Drain Level Control System (S1L) .......... 122
2.4 “A6” Indoor Unit: Fan Motor (M1F) Lock, Overload................................... 124
2.5 “A7” Indoor Unit: Malfunction of Swing Flap Motor (MA) ........................... 125
2.6 “A9” Indoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (20E) ............................................................ 127
2.7 “AF” Indoor Unit: Drain Level above Limit.................................................. 129
2.8 “AJ” Indoor Unit: Malfunction of Capacity Determination Device .............. 130
2.9 “C4” Indoor Unit: Malfunction of Thermistor (R2T) for Heat Exchanger .... 131

SiUS39-601
Table of Contents iii
2.10 “C5” Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes.............. 132
2.11 “C9” Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air............. 133
2.12 “CJ” Indoor Unit: Malfunction of Thermostat Sensor
in Remote Controller ................................................................................ 134
2.13 “E1” Outdoor Unit: PC Board Defect .......................................................... 135
2.14 “E3” Outdoor Unit: Actuation of High Pressure Switch .............................. 136
2.15 “E4” Outdoor Unit: Actuation of Low Pressure Sensor .............................. 137
2.16 “E5”Compressor Motor Lock .................................................................... 139
2.17 “E6”Compressor Motor Overcurrent/Lock ................................................ 141
2.18 “E7”Malfunction of Outdoor Unit Fan Motor.............................................. 142
2.19 “E9” Outdoor Unit: Malfunction of Moving Part
of Electronic Expansion Valve (Y1E, Y2E)............................................... 144
2.20 “F3” Outdoor Unit: Abnormal Discharge Pipe Temperature ...................... 146
2.21 “F6”Refrigerant Overcharged ................................................................... 147
2.22 “H7”Abnormal Outdoor Fan Motor Signal ................................................. 148
2.23 “H9” Outdoor Unit: Malfunction of Thermistor (R1T) for Outdoor Air......... 150
2.24 “J2”Current Sensor Malfunction............................................................... 151
2.25 “J3” Outdoor Unit: Malfunction of Discharge
Pipe Thermistor (R31~33T)...................................................................... 152
2.26 “J5” Outdoor Unit: Malfunction of Thermistor (R2T) for Suction Pipe ....... 153
2.27 “J6” Outdoor Unit: Malfunction of Thermistor (R4T)
for Outdoor Unit Heat Exchanger Deicer.................................................. 154
2.28 “J7” Malfunction of Receiver Outlet Liquid Pipe
Thermistor (R6T) ...................................................................................... 155
2.29 “J8”Malfunction of Oil Equalizing Pipe Thermistor (R7T).......................... 156
2.30 “J9” Malfunction of Sub-Cooling Gas Pipe Thermistor (R5T) ................... 157
2.31 “JA” Outdoor Unit: Malfunction of Discharge Pipe Pressure Sensor......... 158
2.32 “JC” Outdoor Unit: Malfunction of Suction Pipe Pressure Sensor ............. 160
2.33 “L4” Outdoor Unit: Malfunction of Inverter Radiating
Fin Temperature Rise............................................................................... 161
2.34 “L5” Outdoor Unit: Inverter Compressor Abnormal ................................... 162
2.35 “L8” Outdoor Unit: Inverter Current Abnormal........................................... 163
2.36 “L9” Outdoor Unit: Inverter Start up Error.................................................. 165
2.37 “LC” Outdoor Unit: Malfunction of Transmission Between Inverter
and Control PC Board .............................................................................. 166
2.38 “P1” Outdoor Unit: Inverter Over-Ripple Protection ................................... 168
2.39 “P4” Outdoor Unit: Malfunction of Inverter Radiating
Fin Temperature Rise Sensor .................................................................. 170
2.40 “PJ” Outdoor Unit: Faulty Field Setting after Replacing Main
PC Board or Faulty Combination of PC Board ......................................... 171
2.41 “UO” Outdoor Unit: Low Pressure Drop Due to Refrigerant Shortage
or Electronic Expansion Valve Failure...................................................... 172
2.42 “U1” Outdoor Unit: Reverse Phase, Open Phase ...................................... 174
2.43 “U2” Outdoor Unit: Power Supply Insufficient
or Instantaneous Failure........................................................................... 175
2.44 “U3” Outdoor Unit: Check Operation not executed.................................... 177
2.45 “U4”Malfunction of Transmission Between Indoor Units
and Outdoor Units .................................................................................... 178

SiUS39-601
iv Table of Contents
2.46 “U5” Indoor Unit: Malfunction of Transmission Between
Remote Controller and Indoor Unit........................................................... 180
2.47 “U7” Indoor Unit: Malfunction of Transmission
Between Outdoor Units ............................................................................ 181
2.48 “U8” Indoor Unit: Malfunction of Transmission Between Main
and Sub Remote Controllers .................................................................... 183
2.49 “U9” Indoor Unit: Malfunction of Transmission Between Indoor Units
and Outdoor Units in the Same System ................................................... 184
2.50 “UA” Improper Combination of Indoor Units
and Outdoor Units/Indoor Units and Remote Controller........................... 186
2.51 “UC” Address Duplication of Central Remote Controller............................ 188
2.52 “UE”Malfunction of Transmission Between Centralized Controller
and Indoor Unit......................................................................................... 189
2.53 “UF” System is not Set yet......................................................................... 191
2.54 “UH” Malfunction of System, Refrigerant System Address Undefined....... 192
3. Troubleshooting (OP: Central Remote Controller) ..................................194
3.1 “M1”PC Board Defect ................................................................................ 194
3.2 “M8” Malfunction of Transmission Between Optional Controllers
for Centralized Control ............................................................................. 195
3.3 “MA” Improper Combination of Optional Controllers
for Centralized Control ............................................................................. 197
3.4 “MC” Address Duplication, Improper Setting .............................................. 199
4. Troubleshooting (OP: Schedule Timer)...................................................200
4.1 “UE” Malfunction of Transmission Between Central Remote Controller
and Indoor Unit......................................................................................... 200
4.2 “M1” PC Board Defect ................................................................................ 202
4.3 “M8” Malfunction of Transmission Between Optional Controllers
for Centralized Control ............................................................................. 203
4.4 “MA” Improper Combination of Optional Controllers
for Centralized Control ............................................................................. 205
4.5 “MC”Address Duplication, Improper Setting .............................................. 207
5. Troubleshooting (OP: Unified ON/OFF Controller) .................................208
5.1 Operation Lamp Blinks ............................................................................. 208
5.2 Display “Under Centralized Control” Blinks (Repeats Single Blink) ......... 210
5.3 Display “Under Centralized Control” Blinks (Repeats Double Blink) ........ 213
Part 7 Replacement Procedure for INV Compressor, VRV .........217
1. Replacement Procedure for INV Compressor,
VRV (RXYQ72M, 96M) ...........................................................................218
1.1 Replacement Procedure........................................................................... 218
Part 8 Appendix............................................................................ 219
1. Piping Diagrams......................................................................................220
1.1 Outdoor Unit ............................................................................................. 220
1.2 Indoor Unit................................................................................................ 221

SiUS39-601
Table of Contents v
2. Wiring Diagrams for Reference...............................................................223
2.1 Outdoor Unit ............................................................................................. 223
2.2 Field Wiring .............................................................................................. 224
2.3 Indoor Unit................................................................................................ 226
3. List of Electrical and Functional Parts .....................................................230
3.1 Outdoor Unit ............................................................................................. 230
3.2 Indoor Side ............................................................................................... 231
4. Option List ...............................................................................................235
4.1 Option List of Controllers.......................................................................... 235
4.2 Option Lists (Outdoor Unit)....................................................................... 236
5. Example of Connection ...........................................................................237
6. Thermistor Resistance / Temperature Characteristics............................239
7. Pressure Sensor .....................................................................................241
8. Method of Replacing The Inverter’s Power Transistors
and Diode Modules .................................................................................242
8.1 Method of Replacing The Inverter’s Power Transistors
and Diode Modules .................................................................................. 242
Part 9 Precautions for New Refrigerant (R-410A) ....................... 245
1. Precautions for New Refrigerant (R-410A) .............................................246
1.1 Outline ...................................................................................................... 246
1.2 Service Tools............................................................................................ 248
Index ................................................................................................ i
Drawings & Flow Charts ................................................................... v

Introduction SiUS39-601
vi
1. Introduction
1.1 Safety Cautions
Cautions and
Warnings
Be sure to read the following safety cautions before conducting repair work.
The caution items are classified into “ Warning” and “ Caution”. The “ Warning”
items are especially important since they can lead to death or serious injury 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.
About the 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 inside or near the symbol.
This symbol indicates an action that must be taken, or an instruction.
The instruction is shown inside or near the symbol.
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
1.1.1 Caution in Repair
Warning
Be sure to disconnect the power cable plug from the plug socket before
disassembling the equipment for a repair.
Working on the equipment that is connected to a power supply can cause an
electrical shook.
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 the refrigerant gas discharges during the repair work, do not touch the
discharging refrigerant gas.
The refrigerant gas can cause frostbite.
When disconnecting the suction or discharge pipe of the compressor at the
welded section, release the refrigerant gas completely at a well-ventilated place
first.
If there is a gas remaining inside the compressor, the refrigerant gas or
refrigerating machine oil discharges when the pipe is disconnected, and it can
cause injury.
If the refrigerant gas leaks during the repair work, ventilate the area. The
refrigerant gas can generate toxic gases when it contacts flames.
The step-up capacitor supplies high-voltage electricity to the electrical
components of the outdoor unit.
Be sure to discharge the capacitor completely before conducting repair work.
A charged capacitor can cause an electrical shock.
Do not start or stop the air conditioner operation by plugging or unplugging the
power cable plug.
Plugging or unplugging the power cable plug to operate the equipment can cause
an electrical shock or fire.

SiUS39-601 Introduction
vii
1.1.2 Cautions Regarding Products after Repair
Caution
Do not repair the electrical components with wet hands.
Working on the equipment with wet hands can cause an electrical shock.
Do not clean the air conditioner by splashing water.
Washing the unit with water can cause an electrical shock.
Be sure to provide the 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 cause injury.
Do not tilt the unit when removing it.
The water inside the unit can spill and wet the furniture and floor.
Be sure to check that the refrigerating cycle section has cooled down sufficiently
before conducting repair work.
Working on the unit when the refrigerating cycle section is hot can cause burns.
Use the welder in a well-ventilated place.
Using the welder in an enclosed room can cause oxygen deficiency.
Warning
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 can cause an electrical shock, excessive
heat generation or fire.
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 and if the installation work
is not conducted securely, the equipment can fall and cause injury.
Be sure to install the product correctly by using the provided standard installation
frame.
Incorrect use of the installation frame and improper installation can cause the
equipment to fall, resulting in injury.
For integral units
only
Be sure to install the product securely in the installation frame mounted on a
window frame.
If the unit is not securely mounted, it can fall and cause injury.
For integral units
only

Introduction SiUS39-601
viii
1.1.3 Inspection after Repair
Be sure to use an exclusive power circuit for the equipment, and follow the
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 can cause an
electrical shock or fire.
Be sure to use the specified cable to connect 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 can cause excessive heat generation or fire.
When connecting the cable 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 can cause an
electrical shock, excessive heat generation or fire.
Do not damage or modify the power cable.
Damaged or modified power cable can cause an electrical shock or fire.
Placing heavy items on the power cable, and heating or pulling the power cable
can damage the cable.
Do not mix air or gas other than the specified refrigerant (R-410A) in the refrigerant
system.
If air enters the refrigerating system, an excessively high pressure results, causing
equipment damage and injury.
If the refrigerant gas leaks, be sure to locate the leak and repair it before charging
the refrigerant. After charging refrigerant, make sure that there is no refrigerant
leak.
If the leak cannot be located and the repair work must be stopped, be sure to
perform pump-down and close the service valve, to prevent the refrigerant gas
from leaking into the room. The refrigerant gas itself is harmless, but it can
generate toxic gases when it contacts flames, such as fan and other heaters,
stoves and ranges.
When replacing the coin battery in the remote controller, be sure to disposed of
the old battery to prevent children from swallowing it.
If a child swallows the coin battery, see a doctor immediately.
Warning
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 a combustible gas leaks and remains around the unit, it can cause a fire.
Be sure to install the packing and seal on the installation frame properly.
If the packing and seal are not installed properly, water can enter the room and
wet the furniture and floor.
For integral units
only
Warning
Check to make sure that the power cable plug is not dirty or loose, then insert the
plug into a power outlet all the way.
If the plug has dust or loose connection, it can cause an electrical shock or fire.

SiUS39-601 Introduction
ix
1.1.4 Using Icons
Icons are used to attract the attention of the reader to specific information. The meaning of each
icon is described in the table below:
1.1.5 Using Icons List
If the power cable and lead wires have scratches or deteriorated, be sure to
replace them.
Damaged cable and wires can 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 can cause an electrical shock,
excessive heat generation or fire.
Warning
Caution
Check to see if the parts and wires are mounted and connected properly, and if
the connections at the soldered or crimped terminals are secure.
Improper installation and connections can cause excessive heat generation, fire
or an electrical shock.
If the installation platform or frame has corroded, replace it.
Corroded installation platform or frame can cause the unit to fall, resulting in injury.
Check the grounding, and repair it if the equipment is not properly grounded.
Improper grounding can cause an electrical shock.
Be sure to measure the insulation resistance after the repair, and make sure that
the resistance is 1 Mohm or higher.
Faulty insulation can cause an electrical shock.
Be sure to check the drainage of the indoor unit after the repair.
Faulty drainage can cause the water to enter the room and wet the furniture and
floor.
Icon Type of
Information
Description
Note:
Note A “note” provides information that is not indispensable, but may
nevertheless be valuable to the reader, such as tips and tricks.
Caution
Caution A “caution” is used when there is danger that the reader, through
incorrect manipulation, may damage equipment, loose data, get an
unexpected result or has to restart (part of) a procedure.
Warning
Warning A “warning” is used when there is danger of personal injury.
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.

Introduction SiUS39-601
x
1.2 PREFACE
Thank you for your continued patronage of Daikin products.
Thisisthe new servicemanual for Daikin'sYear 2006 VRVseries Heat Pump System.
Daikin offers a wide range of models to respond to building and office air conditioning needs.
We are confident that customers will be able to find the models that best suit their needs.
Thisservice manual contains information regarding the servicing of VRVseries Heat Pump
System.
Oct., 2006
After Sales Service Division

SiUS39-601
General Information 1
Part 1
General Information
1. Model Names of Indoor/Outdoor Units........................................................2
2. External Appearance...................................................................................3
2.1 Indoor Units .................................................................................................. 3
2.2 Outdoor Units ............................................................................................... 3
3. Model Selection...........................................................................................4

Model Names of Indoor/Outdoor Units SiUS39-601
2General Information
1. Model Names of Indoor/Outdoor Units
Indoor Units
Outdoor Units (Inverter Series)
This time we publish SiUS39-601 (New information: RXYQ 72, 144, 168MTJU) Wall Mounted Type FXAQ07,
09MVJU) as shown by .
Type Model Name Power Supply
Ceiling Mounted Cassette
Type (Multi Flow) FXFQ — — 12M 18M 24M 30M 36M —
VJU
Slim Ceiling Mounted
Duct Type FXDQ 07M 09M 12M 18M 24M — — —
Ceiling Mounted Built-In
Type FXSQ — — 12M 18M 24M 30M 36M 48M
Ceiling Mounted Duct
Type FXMQ — — — — — 30M 36M 48M
Ceiling Suspended Type FXHQ — — 12M — 24M — 36M —
Wall Mounted Type FXAQ 07M 09M 12M 18M 24M — — —
Floor Standing Type FXLQ — — 12M 18M 24M — — —
Concealed Floor
Standing Type FXNQ — — 12M 18M 24M — — —
Series Model Name Power Supply
Inverter Heat Pump RXYQ 72M 96M 144M 168M 192M TJU
VJU:1
φ, 208~230V, 60Hz
TJU:3
φ, 208~230V, 60Hz

SiUS39-601 External Appearance
General Information 3
2. External Appearance
2.1 Indoor Units
2.2 Outdoor Units
Ceiling mounted cassette type (Multi flow)
FXFQ12MVJU
FXFQ18MVJU
FXFQ24MVJU
FXFQ30MVJU
FXFQ36MVJU
Wall mounted type
FXAQ07MVJU
FXAQ09MVJU
FXAQ12MVJU
FXAQ18MVJU
FXAQ24MVJU
Slim ceiling mounted duct type
FXDQ07MVJU
FXDQ09MVJU
FXDQ12MVJU
FXDQ18MVJU
FXDQ24MVJU
Floor standing type
FXLQ12MVJU
FXLQ18MVJU
FXLQ24MVJU
Ceiling mounted built-in type
FXSQ12MVJU
FXSQ18MVJU
FXSQ24MVJU
FXSQ30MVJU
FXSQ36MVJU
FXSQ48MVJU
Concealed floor standing type
FXNQ12MVJU
FXNQ18MVJU
FXNQ24MVJU
Ceiling mounted duct type
FXMQ30MVJU
FXMQ36MVJU
FXMQ48MVJU
BS Units
BSVQ36MVJU
BSVQ60MVJU
Ceiling suspended type
FXHQ12MVJU
FXHQ24MVJU
FXHQ36MVJU
RXYQ72MTJU RXYQ96MTJU RXYQ144MTJU RXYQ168MTJU RXYQ192MTJU

Model Selection SiUS39-601
4General Information
3. Model Selection
VRV Heat Pump Series
Connectable Indoor Units Number and Capacity
Connectable Indoor Unit
Indoor Unit Capacity
Use the above tables to determine the capacities of indoor units to be connected. Make sure the
total capacity of indoor units connected to each outdoor unit is within the specified value (Btu/h).
The total capacity of connected indoor units must be within a range of 70 to 130% of the rated
capacity of the outdoor unit.
In some models, it is not possible to connect the maximum number of connectable indoor units.
Select models so the total capacity of connected indoor units conforms to the specification.
Ton 6 ton 8 ton 12 ton 14 ton 16 ton
System name RXYQ72M RXYQ96M RXYQ144M RXYQ168M RXYQ192M
Outdoor unit 1 RXYQ72M RXYQ96M RXYQ72M RXYQ72M RXYQ96M
Outdoor unit 2 —— RXYQ72M RXYQ96M RXYQ96M
Total number of connectable indoor units 12 16 20 20 20
Total Capacity Index of Indoor Units to be Connected 50.5~93.5 67.5~124.5 101~187 118~218 134.5~249.5
Type Model Name Power Supply
Capacity Range 0.6ton 0.8ton 1ton 1.5ton 2ton 2.5ton 3ton 4ton
VJU
Capacity Index 7.5 9.5 12 18 24 30 36 48
Ceiling Mounted Cassette
Type (Multi Flow) FXFQ — — 12M 18M 24M 30M 36M —
Slim Ceiling Mounted
Duct Type FXDQ 07M 09M 12M 18M 24M — — —
Ceiling Mounted Built-In
Type FXSQ — — 12M 18M 24M 30M 36M 48M
Ceiling Mounted Duct
Type FXMQ —————30M36M48M
Ceiling Suspended Type FXHQ — — 12M — 24M — 36M —
Wall Mounted Type FXAQ 07M 09M 12M 18M 24M — — —
Floor Standing Type FXLQ — — 12M 18M 24M — — —
Concealed Floor
Standing Type FXNQ — — 12M 18M 24M — — —
New refrigerant model code 07 type 09 type 12 type 18 type 24 type 30 type 36 type 48 type
Selecting model capacity 7,500
Btu/h
9,500
Btu/h
12,000
Btu/h
18,000
Btu/h
24,000
Btu/h
30,000
Btu/h
36,000
Btu/h
48,000
Btu/h
Equivalent output 0.6 ton 0.8 ton 1 ton 1.5 ton 2 ton 2.5 ton 3 ton 4 ton

SiUS39-601
Specifications 5
Part 2
Specifications
1. Specifications ..............................................................................................6
1.1 Outdoor Units ............................................................................................... 6
1.2 Indoor Units ................................................................................................ 11

Specifications SiUS39-601
6Specifications
1. Specifications
1.1 Outdoor Units
Notes: ★1 Indoor temp. : 80°FDB or 67°FWB / outdoor temp. : 95°FDB / Equivalent piping length : 25 ft, level difference: 0.
★2 Indoor temp. : 70°FDB / outdoor temp. : 47°FDB or 43°FWB / Equivalent piping length : 25 ft, level difference: 0.
★3 Anechoic chamber conversion value, measured under JISB8616 conditions. During actual operation,
these values are normally somewhat higher as a result of ambient conditions.
Model Name RXYQ72MTJU
★1 Cooling Capacity Btu / h 72,000
★2 Heating Capacity Btu / h 81,000
Casing Color Ivory White (5Y7.5/1)
Dimensions: (H×W×D) in 64 × 48-7/8 × 30-1/8
Heat Exchanger Cross Fin Coil
Comp.
Type Hermetically Sealed Scroll Type
Piston Displacement m3/h 13.72+10.47
Number of Revolutions r.p.m 6480, 2900
Motor Output × Number
of Units kW (2.7+4.5) × 1
Starting Method Direct on line
Fan
Type Propeller Fan
Motor Output kW 0.75 × 1
Air Flow Rate cfm 7,400
Drive Direct Drive
Connecting
Pipes
Liquid Pipe in 3/8 in C1220T (Flare Connection)
Gas Pipe in 3/4 in C1220T (Brazing Connection)
Discharge Gas Pipe in —
Machine Weight (Mass) Lbs 666
★3 Sound Level (Reference Value) dBA 60
Safety Devices High Pressure Switch, Fan Driver Overload Protector, Over Current Relay, Inverter Overload Protector, Fusible Plugs,
Ground fault circuit interrupter
Defrost Method Deicer
Capacity Control % 14~100
Refrigerant
Refrigerant Name R-410A
Charge Lbs 25.1
Control Electronic Expansion Valve
Refrigerator
Oil
Synthetic (ether) oil
Charge Volume L 1.9+1.6
Standard Accessories Installation Manual, Operation Manual, Connection Pipes, Clamps
Drawing No. 4D053300A

SiUS39-601 Specifications
Specifications 7
Notes: ★1 Indoor temp. : 80°FDB or 67°FWB / outdoor temp. : 95°FDB / Equivalent piping length : 25 ft, level difference: 0.
★2 Indoor temp. : 70°FDB / outdoor temp. : 47°FDB or 43°FWB / Equivalent piping length : 25 ft, level difference: 0.
★3 Anechoic chamber conversion value, measured under JISB8616 conditions. During actual operation,
these values are normally somewhat higher as a result of ambient conditions.
Model Name RXYQ96MTJU
★1 Cooling Capacity Btu / h 96,000
★2 Heating Capacity Btu / h 108,000
Casing Color Ivory White (5Y7.5/1)
Dimensions: (H×W×D) in 64 × 48-7/8 × 30-1/8
Heat Exchanger Cross Fin Coil
Comp.
Type Hermetically Sealed Scroll Type
Piston Displacement m3/h 13.72+10.47
Number of Revolutions r.p.m 6480, 2900
Motor Output × Number
of Units kW (2.7+4.5) × 1
Starting Method Direct on line
Fan
Type Propeller Fan
Motor Output kW 0.75 × 1
Air Flow Rate cfm 7,400
Drive Direct Drive
Connecting
Pipes
Liquid Pipe in 3/8 in C1220T (Flare Connection)
Gas Pipe in 7/8 in C1220T (Brazing Connection)
Discharge Gas Pipe in —
Machine Weight (Mass) Lbs 666
★3 Sound Level (Reference Value) dBA 60
Safety Devices High Pressure Switch, Fan Driver Overload Protector, Over Current Relay, Inverter Overload Protector, Fusible Plugs
Defrost Method Deicer
Capacity Control % 14~100
Refrigerant
Refrigerant Name R-410A
Charge Lbs 25.1
Control Electronic Expansion Valve
Refrigerator
Oil
Synthetic (ether) oil
Charge Volume L 1.9+1.6
Standard Accessories Installation Manual, Operation Manual, Connection Pipes, Clamps
Drawing No. 4D042657B

Specifications SiUS39-601
8Specifications
Notes: ★1 Indoor temp. : 80°FDB or 67°FWB / outdoor temp. : 95°FDB / Equivalent piping length : 25 ft, level difference: 0.
★2 Indoor temp. : 70°FDB / outdoor temp. : 47°FDB or 43°FWB / Equivalent piping length : 25 ft, level difference: 0.
★3 BHFP22M90V is necessary for the connection.
Concerning about the piping connection for each outdoor unit to the main line as shown above, use REFNET.
Model Name (Combination Unit) RXYQ144MTJU
Model Name (Independent Unit) RXYQ72MTJU+RXYQ72MTJU
★1 Cooling Capacity Btu / h 144,000
★2 Heating Capacity Btu / h 162,000
Casing Color Ivory White (5Y7.5/1)
Dimensions: (H×W×D) in (64 × 48-7/8 × 30-1/8) + (64 × 48-7/8 × 30-1/8)
Heat Exchanger Cross Fin Coil
Comp.
Type Hermetically Sealed Scroll Type
Piston Displacement m3/h (13.72+10.47) × 2
Number of Revolutions r.p.m (6480, 2900) × 2
Motor Output × Number
of Units kW (2.7+4.5) × 2
Starting Method Direct on line
Fan
Type Propeller Fan
Motor Output kW 0.75 × 2
Air Flow Rate cfm 7,400+7,400
Drive Direct Drive
Connecting
Pipes
Liquid Pipe ★3 in 5/8 in C1220T (Brazing Connection) — Main line —
Gas Pipe ★3 in 1-1/8 in C1220T (Brazing Connection) — Main line —
Oil Equalizing Pipe in φ1/4 in C1220T (Flare Connection)
Machine Weight (Mass) Lbs 666+666
Safety Devices High Pressure Switch, Fan Driver Overload Protector, Over Current Relay, Inverter Overload Protector, Fusible Plugs,
Ground fault circuit interrupter
Defrost Method Deicer
Capacity Control % 10~100
Refrigerant
Refrigerant Name R-410A
Charge Lbs 25.1+25.1
Control Electronic Expansion Valve
Refrigerator
Oil
Synthetic (ether) oil
Charge Volume L (1.9+1.6) + (1.9+1.6)
Standard Accessories Installation Manual, Operation Manual, Connection Pipes, Clamps
Drawing No. 4D053301

SiUS39-601 Specifications
Specifications 9
Notes: ★1 Indoor temp. : 80°FDB or 67°FWB / outdoor temp. : 95°FDB / Equivalent piping length : 25 ft, level difference: 0.
★2 Indoor temp. : 70°FDB / outdoor temp. : 47°FDB or 43°FWB / Equivalent piping length : 25 ft, level difference: 0.
★3 BHFP22M90V is necessary for the connection.
Concerning about the piping connection for each outdoor unit to the main line as shown above, use REFNET.
Model Name (Combination Unit) RXYQ168MTJU
Model Name (Independent Unit) RXYQ72MTJU+RXYQ96MTJU
★1 Cooling Capacity Btu / h 168,000
★2 Heating Capacity Btu / h 189,000
Casing Color Ivory White (5Y7.5/1)
Dimensions: (H×W×D) in (64 × 48-7/8 × 30-1/8) + (64 × 48-7/8 × 30-1/8)
Heat Exchanger Cross Fin Coil
Comp.
Type Hermetically Sealed Scroll Type
Piston Displacement m3/h (13.72+10.47) × 2
Number of Revolutions r.p.m (6480, 2900) × 2
Motor Output × Number
of Units kW (2.7+4.5) × 2
Starting Method Direct on line
Fan
Type Propeller Fan
Motor Output kW 0.75 × 2
Air Flow Rate cfm 7,400+7,400
Drive Direct Drive
Connecting
Pipes
Liquid Pipe ★3 in 5/8 in C1220T (Brazing Connection) — Main line —
Gas Pipe ★3 in 1-1/8 in C1220T (Brazing Connection) — Main line —
Oil Equalizing Pipe in φ1/4 in C1220T (Flare Connection)
Machine Weight (Mass) Lbs 666+666
Safety Devices High Pressure Switch, Fan Driver Overload Protector, Over Current Relay, Inverter Overload Protector, Fusible Plugs,
Ground fault circuit interrupter
Defrost Method Deicer
Capacity Control % 7~100
Refrigerant
Refrigerant Name R-410A
Charge Lbs 25.1+25.1
Control Electronic Expansion Valve
Refrigerator
Oil
Synthetic (ether) oil
Charge Volume L (1.9+1.6) + (1.9+1.6)
Standard Accessories Installation Manual, Operation Manual, Connection Pipes, Clamps
Drawing No. 4D053302