Daikin RELQ-TATJA Series Guide

EDUS371705C-D
202002
Engineering Data
Heat Recovery 60 Hz
Design Manual
RELQ-TATJA, 208 / 230 V
RELQ-TAYDA, 460 V
RELQ-TAYCA, 575 V
EDUS371705C-D ENGINEERING DATA VRV Aurora Series RELQ-TATJA / TAYDA / TAYCA HEAT RECOVERY 60 Hz DESIGN MANUAL

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RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D
Table of Contents
1. FeaturesandBenets ................................................................................3
2. Compatibility...............................................................................................4
3. Nomenclature .............................................................................................5
4. Model Names .............................................................................................9
4.1 Outdoor Units....................................................................................9
4.2 Indoor Units.....................................................................................10
4.3 Branch Selector Unit .......................................................................10
4.4 Air Treatment Equipment ................................................................11
5. External Appearance................................................................................12
5.1 Outdoor Units..................................................................................12
5.2 Indoor Units.....................................................................................13
5.3 Branch Selector Unit .......................................................................14
5.4 Air Treatment Equipment ................................................................14
6. Outdoor Unit Combination........................................................................15
7. Interchangeability .....................................................................................16
8. Capacity Range........................................................................................17
8.1 Connection Ratio ............................................................................17
8.2 Capacity Range of Connectable Indoor Units.................................18
8.3 Limitation of Capacity Index for Heat Recovery..............................19
9. Specications ...........................................................................................20
9.1 RELQ-TATJA ..................................................................................20
9.2 RELQ-TAYDA .................................................................................22
9.3 RELQ-TAYCA .................................................................................24
10.Dimensions...............................................................................................26
11.Service Space ..........................................................................................28
12.Center of Gravity ......................................................................................30
13.Foundation Drawing .................................................................................32
14.Piping Diagrams .......................................................................................33
15.Wiring Diagrams.......................................................................................35
16.Field Wiring ..............................................................................................45
17.Electrical Characteristics ..........................................................................47
17.1 RELQ72-120TATJA ........................................................................47
17.2 RELQ72-120TAYDA .......................................................................48
17.3 RELQ72-120TAYCA .......................................................................49
18.Operation Limits .......................................................................................50
19.Low Ambient Cooling Enhancement ........................................................51
20.Sound Levels (Reference Data)...............................................................52

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21.Accessories ..............................................................................................55
21.1 Optional Accessories ......................................................................55
22.Selection Procedure .................................................................................56
22.1 Selection Procedure........................................................................56
23.Caution Label ...........................................................................................62
23.1 RELQ72-240TATJA / TAYDA / TAYCA ..........................................62
24.Caution for Refrigerant Leaks ..................................................................71
24.1 Introduction .....................................................................................71
24.2 Procedure for Checking Maximum Concentration ..........................72
25.Safety Devices Setting .............................................................................74
25.1 FXFQ-T ...........................................................................................74
25.2 FXZQ-TA.........................................................................................74
25.3 FXUQ-P ..........................................................................................74
25.4 FXEQ-P...........................................................................................74
25.5 FXDQ-M..........................................................................................75
25.6 FXSQ-TA ........................................................................................75
25.7 FXMQ-PB........................................................................................75
25.8 FXMQ-M .........................................................................................75
25.9 FXHQ-M..........................................................................................76
25.10 FXAQ-P .........................................................................................76
25.11 FXLQ-M, FXNQ-M.........................................................................76
25.12 FXTQ-TA .......................................................................................76
25.13 CXTQ-TA.......................................................................................76
Appendix........................................................................................................77
1. Introduction...............................................................................................78
1.1 ED Book List ...................................................................................78
1.2 Publication List of Engineering Data for VRV Products ..................79

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1. Features and Benets
The new VRV Aurora Series heat recovery unit demonstrates Daikin's technological leadership by
offeringtherstVRVaircooledsystemthatdeliverseffectiveandefcientheatingdownto
−22°FWB(−30°CWB).
• Available in 6, 8, 10 ton single modules and 12, 16, 20 ton multi-module systems
• First Air Cooled VRVsystemtodeliverheatingdownto−22°F(−30°C)asstandard
• Daikin’s patented inverted based vapor injection compressor delivers high heating capacity of up
to100%at0°F(−18°C),upto85%at−13°F(−25°C)andupto60%at−22°F(−30°C)
•Refrigerantcooledefcientandstableinverterboardoperation,independentofambient
conditions
• Hot gas base pan circuit allows installation without additional drain pan heater
• Added peace of mind with ability of Auto changeover to back up (auxiliary) heat
•YearroundcomfortandenergyefciencydeliveredbycombingVRV and Variable Refrigerant
Temperature (VRT) technologies
• Designed and optimized for Total Cost of Construction (TCC) and reduced Life Cycle Cost (LCC)
•Corrosionresistant,1000hrsaltspraytestedDaikinPEbluenheatexchanger
• Ships factory standard with coil guards
• Compatible with the full suite of VRV-IV T-series Branch Selector Boxes
• Seamless connection to all VRV M, P and T series indoor units
•Easecommissioningwithabilitytoprogramsettingsoffsiteusingnewconguratortool
•3-digit7-segmentdigitaldisplayontheunitforimprovedandfasterconguration,commissioning,
and troubleshooting
• Backed by 10 year parts limited warranty and 10 years replacement compressor limited warranty*
* Complete warranty details available from local distributor or manufacturer's representative

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2. Compatibility
208/230 V model 460 V model 575 V model
New model Current model New model Current model New model Current model
RELQ72TATJA RELQ72TATJU RELQ72TAYDA RELQ72TAYDU RELQ72TAYCA RELQ72TAYCU
RELQ96TATJA RELQ96TATJU RELQ96TAYDA RELQ96TAYDU RELQ96TAYCA RELQ96TAYCU
RELQ120TATJA RELQ120TATJU RELQ120TAYDA RELQ120TAYDU RELQ120TAYCA RELQ120TAYCU
RELQ144TATJA RELQ144TATJU RELQ144TAYDA RELQ144TAYDU RELQ144TAYCA RELQ144TAYCU
RELQ192TATJA RELQ192TATJU RELQ192TAYDA RELQ192TAYDU RELQ192TAYCA RELQ192TAYCU
RELQ240TATJA RELQ240TATJU RELQ240TAYDA RELQ240TAYDU RELQ240TAYCA RELQ240TAYCU

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3. Nomenclature
Outdoor Unit
Minor revision
Power supply symbol
TJ: 3 phase, 208 / 230 V, 60 Hz
YD: 3 phase, 460 V, 60 Hz
YC: 3 phase, 575 V, 60 Hz
Indicates minor change category
Indicates major design category
T: VRV IV
Capacity indication in cooling
Refrigerant
Q: R410A
Indicates that this is a
REL: Heat recovery air cooled (Cold Climate)
Q TJ AT A240
REL

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Indoor Unit
M 54 VJPB UX QF
Standard symbol
U: United States of America
Power supply symbol
VJ: 1 phase, 208/230 V, 60 Hz
SBL: 1 phase, 120 V, 60 Hz
Indicates major design category
Capacity indication in cooling
05: 5,800 Btu/h 18: 18,000 Btu/h 48: 48,000 Btu/h
07: 7,500 Btu/h 24: 24,000 Btu/h 54: 54,000 Btu/h
09: 9,500 Btu/h 30: 30,000 Btu/h 60: 60,000 Btu/h
12: 12,000 Btu/h 36: 36,000 Btu/h 72: 72,000 Btu/h
15: 15,000 Btu/h 42: 42,000 Btu/h 96: 96,000 Btu/h
Refrigerant
Q: R410A
Shape
F: Ceiling mounted cassette (Round flow with sensing)
Z: VISTA™ 2 × 2 cassette unit
U: 4-way blow ceiling-suspended
E: One way blow cassette
D: Slim ceiling mounted duct
S: MSP concealed ducted unit
M: Ceiling mounted duct
H: Ceiling suspended
A: Wall mounted
L: Floor standing
N: Concealed floor standing
T: Air handling unit (FXTQ)
Upflow/Downflow (CXTQ)
Series category
X: Inverter
Unit category
F: Indoor unit for air cooled type
C: Cased coil unit

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Branch Selector Unit
Power supply symbol
VJ: 1 phase, 208 / 230 V, 60 Hz
Indicates major design category
T: VRV IV (Heat Recovery)
Capacity indication
36: 36,000 Btu/h
60: 60,000 Btu/h
96: 96,000 Btu/h
Refrigerant: R410A
Unit category
BS: Branch selector unit
BS T VJQ 36
Single Branch Selector Unit (only necessary for Heat Recovery System)
Power supply symbol
VJ: 1 phase, 208 / 230 V, 60 Hz
Indicates major design category
T: VRV IV (Heat Recovery)
Capacity indication of connectable indoor units per branch
Refrigerant: R410A
Number of branches
4: 4 branches
6: 6 branches
8: 8 branches
10: 10 branches
12: 12 branches
Unit category
BS: Branch selector unit
BS T VJQ12 54
Multi Branch Selector Unit (only necessary for Heat Recovery System)

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Air Treatment Equipment
M 48 VJ UM FX QF
Standard symbol
U: United States of America
Power supply symbol
VJ: 1 phase, 208 / 230 V, 60 Hz
Outdoor air processing unit
Indicates major design category
Capacity indication in cooling
48: 48,000 Btu/h
72: 72,000 Btu/h
96: 96,000 Btu/h
Refrigerant
Q: R410A
Shape
M: Ceiling mounted duct
Series category
X: Inverter
Unit category
F: Indoor unit for air cooled type
Outdoor Air Processing Unit
U
G300V A M VJ
Standard symbol
U: United States of America
Power supply symbol
VJ: 1 phase, 208 / 230 V, 60 Hz
Indicates major design category
Airflow rate (H)
300: 300 cfm
470: 470 cfm
600: 600 cfm
1200: 1,200 cfm
Mounted type
Air
Ventilation
Energy Recovery Ventilator (VAM series)

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4. Model Names
4.1 Outdoor Units
Capacity range 6 ton 8 ton 10 ton 12 ton 14 ton 16 ton 18 ton 20 ton Power supply,
Standard
Capacity index 72 96 120 144 168 192 216 240
Heat recovery 208 / 230 V RELQ 72TA 96TA 120TA 144TA 168TA 192TA 216TA 240TA TJA
Heat recovery 460 V RELQ 72TA 96TA 120TA 144TA 168TA 192TA 216TA 240TA YDA
Heat recovery 575 V RELQ 72TA 96TA 120TA 144TA 168TA 192TA 216TA 240TA YCA
TJ: 3 phase, 208 / 230 V, 60 Hz
YD: 3 phase, 460 V, 60 Hz
YC: 3 phase, 575 V, 60 Hz
A: Minor revision
Heat Recovery 208 / 230 V
Model name RELQ72TATJA RELQ96TATJA RELQ120TATJA
Outdoor unit 1 RELQ72TATJA RELQ96TATJA RELQ120TATJA
Model name RELQ144TATJA RELQ192TATJA RELQ240TATJA
Outdoor unit 1 RELQ72TATJA RELQ96TATJA RELQ120TATJA
Outdoor unit 2 RELQ72TATJA RELQ96TATJA RELQ120TATJA
Heat Recovery 460 V
Model name RELQ72TAYDA RELQ96TAYDA RELQ120TAYDA
Outdoor unit 1 RELQ72TAYDA RELQ96TAYDA RELQ120TAYDA
Model name RELQ144TAYDA RELQ192TAYDA RELQ240TAYDA
Outdoor unit 1 RELQ72TAYDA RELQ96TAYDA RELQ120TAYDA
Outdoor unit 2 RELQ72TAYDA RELQ96TAYDA RELQ120TAYDA
Heat Recovery 575 V
Model name RELQ72TAYCA RELQ96TAYCA RELQ120TAYCA
Outdoor unit 1 RELQ72TAYCA RELQ96TAYCA RELQ120TAYCA
Model name RELQ144TAYCA RELQ192TAYCA RELQ240TAYCA
Outdoor unit 1 RELQ72TAYCA RELQ96TAYCA RELQ120TAYCA
Outdoor unit 2 RELQ72TAYCA RELQ96TAYCA RELQ120TAYCA

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4.2 Indoor Units
Capacity Range 0.5 ton 0.6 ton 0.8 ton 1 ton 1.25 ton 1.5 ton 2 ton 2.5 ton 3 ton 3.5 ton 4 ton 4.5 ton 5 ton 6 ton 8 ton
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owwithsensing)
type
FXFQ — 07T 09T 12T 15T 18T — 24T 30T 36T — 48T — — — —
VJU
VISTA™ 2 × 2 cassette unit FXZQ
05TA 07TA 09TA 12TA 15TA 18TA ——————————
4-way blow ceiling-
suspended type FXUQ — — — — — — 18P 24P 30P 36P — — — — — —
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 unit 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oor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
4.3 Branch Selector Unit
Single Branch Selector Unit for Heat Recovery
Series Model name Power supply, Standard
Heat recovery BSQ 36T 60T 96T VJ
Note:
No interchangeability between BSVQ-PVJU and BSQ-TVJ.
VJ: 1 phase, 208 / 230 V, 60 Hz
Multi Branch Selector Unit for Heat Recovery
Series Model name Power supply, Standard
Heat recovery BS 4Q54T 6Q54T 8Q54T 10Q54T 12Q54T VJ
Note:
No interchangeability between BSV-Q36PVJU and BS-Q54TVJ.
VJ: 1 phase, 208 / 230 V, 60 Hz

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4.4 Air Treatment Equipment
Outdoor Air Processing Unit
Series Model name Power supply, Standard
FXMQ 48MF 72MF 96MF VJU
VJ : 1 phase, 208 / 230 V, 60 Hz
U(VJU): Standard symbol
Energy Recovery Ventilator (VAM series)
Series Model name Power supply, Standard
VAM 300G 470G 600G 1200G VJU
VJ : 1 phase, 208 / 230 V, 60 Hz
U(VJU): Standard symbol

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5. External Appearance
5.1 Outdoor Units
Single Outdoor Units
RELQ72TATJA
RELQ96TATJA
RELQ120TATJA
RELQ72TAYDA
RELQ96TAYDA
RELQ120TAYDA
RELQ72TAYCA
RELQ96TAYCA
RELQ120TAYCA
6, 8, 10 ton
Double Outdoor Units
RELQ144TATJA
RELQ192TATJA
RELQ240TATJA
RELQ144TAYCA
RELQ192TAYCA
RELQ240TAYCA
RELQ144TAYDA
RELQ192TAYDA
RELQ240TAYDA
12, 16, 20 ton

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5.2 Indoor Units
Ceilingmountedcassette(Roundowwithsensing)type
FXFQ-T
Shown with BYCQ125B-W1
Ceiling mounted duct type
FXMQ-M
VISTA™ 2 × 2 cassette unit
FXZQ-TA
Shown with BYFQ60C3W1W Shown with BYFQ60C3W1S
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oorstandingtype
FXNQ-M
MSP concealed ducted unit
FXSQ-TA
Air handling unit
FXTQ-TA
Ceiling mounted duct type (Middle and high static pressure)
FXMQ-PB
Cased coil unit
CXTQ-TA

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5.3 Branch Selector Unit
Single branch selector unit
BSQ-T
Multi branch selector unit
BS-Q54TVJ
5.4 Air Treatment Equipment
Outdoor air processing unit
FXMQ-MF
Energy recovery ventilator
(VAM series)
VAM-G

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6. Outdoor Unit Combination
Model name System capacity Number of
units
Module Outdoor unit multi connection
piping kit *1
Ton HP kW 72 96 120
RELQ72TATJA
RELQ72TAYDA
RELQ72TAYCA
6 7.5 21.1 1 l
—
RELQ96TATJA
RELQ96TAYDA
RELQ96TAYCA
8 10.0 28.1 1 l
RELQ120TATJA
RELQ120TAYDA
RELQ120TAYCA
10 12.5 35.2 1 l
RELQ144TATJA
RELQ144TAYDA
RELQ144TAYCA
12 15.0 42.2 2 ll
BHFP26P100U
BHFP26P100UA
RELQ192TATJA
RELQ192TAYDA
RELQ192TAYCA
16 20.0 56.3 2 ll
RELQ240TATJA
RELQ240TAYDA
RELQ240TAYCA
20 25.0 70.3 2 ll
Notes:
*1. For multiple connection, the outdoor unit multi connection piping kit (separately sold) is required.

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7. Interchangeability
Branch selector unit
Outdoor unit
T-series branch selector unit (Reference)
P-series branch selector unit
Single branch
selector unit
Multi branch selector
unit
Single branch
selector unit
Multi branch selector
unit
BSQ36TVJ
BSQ60TVJ
BSQ96TVJ
BS4Q54TVJ
BS6Q54TVJ
BS8Q54TVJ
BS10Q54TVJ
BS12Q54TVJ
BSVQ36PVJU
BSVQ60PVJU
BSVQ96PVJU
BSV4Q36PVJU
BSV6Q36PVJU
Heat recovery RELQ-TA
RELQ-TATJA Connectable *1 Connectable *1 Not connectable Not connectable
RELQ-TAYDA Connectable *1 Connectable *1 Not connectable Not connectable
RELQ-TAYCA Connectable *1 Connectable *1 Not connectable Not connectable
Note:
*1. Combination of P-series and T-series of Branch selector units in a single system is not permitted.
Combining the two series may cause malfunction.

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8. Capacity Range
8.1 Connection Ratio
Connection ratio = Total capacity index of the indoor units
Capacity index of the outdoor units
Type
Min.
connection
ratio
Max. connection ratio
Types of connected indoor units Type of connected air treatment
equipment
When using only
FXDQ, FXMQ-PB,
FXAQ, FXSQ07-54TA
When using at least one
FXZQ05TA, FXSQ05TA,
FXFQ07/09
When using other
indoor unit models
FXMQ-MF
When FXMQ-MF is
only connected
When FXMQ-MF
and indoor units
are connected
Single outdoor units 70% 200% *1 180% *1 200% *1 100% 100% *2 *3
Double outdoor units 160% *1 160% *1
Notes:
*1. Iftheoperationalcapacityofindoorunitsismorethan130%,lowairowoperationisenforcedinalltheindoorunits.Fieldsettingnowexiststo
congurethissituation.Forcoolingandheatingmode–seebelow.
*2. When outdoor-air processing units (FXMQ-MF) and standard indoor units are connected, the total connection capacity of the outdoor-air
processing units (FXMQ-MF) must not exceed 30% of the capacity index of the outdoor units. And the connection ratio must not exceed 100%.
*3. Itispermittedtouseamaximumconnectionratioof130%insomecircumstances–pleasecontactyourlocalDaikinrepresentativeforfurther
details.
*4. For indoor units used for cooling only (do not connect to Branch Selector unit when using for heat recovery), total capacity index must be 70%
or less than the capacity index of the outdoor units.
Indoor unit fan tap setting
Indoor units fan speed limitation related to connection capacity and outdoor air temperature for energy saving.
Default value = 0
Value Indoor unit fan tap setting
0Fan speed is limited to L tap when indoor units capacity ≥130%.
1In heating mode, fan speed is limited to L tap when indoor units capacity ≥130%.
2 Fan speed follows the setting of remote controllers (not limited by indoor units connection capacity).
3
FanspeedislimitedtoLtapwhenoutdoorairtemperaturegoesdowntobelow85.1°F(29.5°C)andindoorairtemperatureisin
conditionA(*).Itreturnstoremotecontrollersettingwhenoutdoorairtemperaturegoesuptoover90.5°F(32.5°C)orindoorair
temperature is in condition B (**).
4
FanspeedislimitedtoLtapwhenoutdoorairtemperaturegoesdowntobelow74.3°F(23.5°C)andindoorairtemperatureisin
conditionA(*).Itreturnstoremotecontrollersettingwhenoutdoorairtemperaturegoesuptoover79.7°F(26.5°C)orindoorair
temperature is in condition B (**).
5
FanspeedislimitedtoLtapwhenoutdoorairtemperaturegoesdowntobelow66.7°F(19.3°C)andindoorairtemperatureisin
conditionA(*).Itreturnstoremotecontrollersettingwhenoutdoorairtemperaturegoesuptoover72.1°F(22.3°C)orindoorair
temperature is in condition B (**).
6FanspeedislimitedtoLtapwhenoutdoorairtemperaturegoesdowntobelow85.1°F(29.5°C).Itreturnstoremotecontroller
settingwhenoutdoorairtemperaturegoesuptoover90.5°F(32.5°C).
7FanspeedislimitedtoLtapwhenoutdoorairtemperaturegoesdowntobelow74.3°F(23.5°C).Itreturnstoremotecontroller
settingwhenoutdoorairtemperaturegoesuptoover79.7°F(26.5°C).
8FanspeedislimitedtoLtapwhenoutdoorairtemperaturegoesdowntobelow66.7°F(19.3°C).Itreturnstoremotecontroller
settingwhenoutdoorairtemperaturegoesuptoover72.1°F(22.3°C).
*IndoorconditionA:Temperaturedifference(indoorairtemperature-settemperature)ismorethan−2.7°F(−1.5°C)andlessthan5.4°F(3°C).
**IndoorconditionB:Temperaturedifference(indoorairtemperature-settemperature)is−2.7°F(−1.5°C)orless,or5.4°F(3°C)ormore.

18
RELQ-TATJA / TAYDA / TAYCA EDUS371705C-D
8.2 Capacity Range of Connectable Indoor Units
Type Ton Capacity index Model name Total capacity index of
connectable indoor units *1
Maximum number of
connectable indoor units
Single outdoor units
6 72
RELQ72TATJA
RELQ72TAYDA
RELQ72TAYCA
51 to 93 (144) 12
8 96
RELQ96TATJA
RELQ96TAYDA
RELQ96TAYCA
68 to 124 (192) 16
10 120
RELQ120TATJA
RELQ120TAYDA
RELQ120TAYCA
84 to 156 (240) 20
Double outdoor units
12 144
RELQ144TATJA
RELQ144TAYDA
RELQ144TAYCA
101 to 187 (230) 25
16 192
RELQ192TATJA
RELQ192TAYDA
RELQ192TAYCA
135 to 249 (307) 33
20 240
RELQ240TATJA
RELQ240TAYDA
RELQ240TAYCA
168 to 312 (384) 41
Notes:
*1. Values inside brackets are based on connection of indoor units rated at maximum capacity, 200% for single outdoor units, 160% for double
outdoor units, and 130% for triple outdoor units.