
ENERGY-INTELLIGENT
™
HEATING AND COOLING SYSTEMS
VRV IV Air-Cooled Heat Recovery
Daikin’s VRV IV systems integrate advanced technology to
provide comfort control with maximum energy efficiency and
reliability. VRV IV provides a heating and cooling solution
for multi-family residential to large commercial applications.
Daikin VRV IV is the first variable refrigerant flow (VRF) system
to be assembled in North America.
Main Features and Benefits:
Total comfort solution for heating, cooling, ventilation and controls
All inverter compressors and inverter fan motors optimize
part load efficiency.
Redesigned and optimized for low total Life Cycle Cost (LCC)
New single/multiple port branch selector boxes provide
compact dimensions and a wide range of product offerings
(single, 4, 6, 8, 10 and 12 port options)
Reduced install cost and increased flexibility as compared to
VRV III with larger capacity single modules up to 14 Tons and
system capacity up to 38 Tons
Efficiency improved over VRV III by an average of 21% with
IEER Values now up to 29.3
Improved seasonal efficiency as compared to VRV III with
automatic and customizable Variable Refrigerant Temperature (VRT)
climate tuning
Best-In-class warranty* with 10 year compressor and parts limited
warranty as standard
Reduced commissioning time vs. VRV III with VRV configurator
software and Graphical User Interface (GUI)
Design flexibility with long piping lengths up to 3,280 ft. total
and up to 100 ft. vertical separation between indoor units
Take advantage of Daikin’s unique zone and centralized controls that
are optimized for the specific needs of North America
Additional information
Before purchasing this appliance, read important information
about its estimated annual energy consumption, yearly
operating cost, or energy efficiency rating that is available
from your retailer.
FIND OUT MORE
ABOUT DAIKIN VRV.
* Complete warranty details available
from your local distributor or
manufacturer’s representative.
COMMERCIAL RENOVATION NEW CONSTRUCTION

VRV IV
|
AIR COOLED HEAT RECOVERY
VRV IV Operation
Lower capacity is required to cool and heat a building during mid season
Adapting to required heat load by variable re frigerant volume
A VRV system adapts to the required changes in capacit y by var ying the
refrigerant volume. This results in an increase in ef ficiency at part load operation
The ef ficiency of VRV IV is f urther increased by adjusting the refrigerant
temperature dependant on the space load and wea ther conditions
Up to 28% Improved Seasonal
Cooling Efficiency vs. VRV III
n
PIPING FLEXIBILITY:
The VRV IV provides very flexible piping possibilities.
These generous allowances outlined in the figure facilitate
an extensive variety of system designs.
n
100 ft maximum vertical difference between indoor units
provides greater flexibility for riser type piping layouts.
n
Allows for up to 12 floors to be served from a
single VRV System
n
Ideal for mid to high rise chiller or WSHP
replacement projects
Variable Rt*
Fixed R t*
*Refrigerant
Temperature (Rt)
Load
Variable Rt*
Fixed R t*
Efficiency
The abo ve grap hs are intended only to depict how advan tages of the ne w Daikin VRV IV sys tem
combine to achieve the stated increase in seasonal ef ficiency. The graphs do not reflec t test r esults,
are not to scale and therefore do not quan tify the ef fect of any such advantage.
A
B
C
D
E
Design
Condition
Ambient
Temperature
Cooling
Requirement
Ambient
Temperature
Ambient
Temperature
Daikin VRV IV Piping
Maximum total one-way piping length 3282 ft.
Maximum piping length between outdoor unit and indoor unit - A 541 ft.
Maximum piping length between 1st branch connection and indoor unit
(with application rules)
- B
Maximum piping length between indoor unit and
closest branch connection
Maximum vertical difference
OU above IUs - C 164 ft.
between outdoor unit and indoor
unit
(with application rules)
OU below IUs - E
Maximum vertical difference between indoor units - D 100 ft.
131 ft.
(295 ft.)
131 ft.
(295 ft.)
(195 ft.)
131 ft.

DAIKIN VRV IV BRANCH SELECTOR BOXES:
Providing flexibility and minimizing mechanical and electrical
installation costs, Daikin's branch selector boxes are ideal for
spaces that require individual heating and cooling control.
n Extended range of product offerings with 4, 6,
n No drain or condensate
BSQ36TVJ, BSQ60TVJ, &
BSQ96TVJ Single Port
BS4Q54TVJ
BS6Q54TVJ
n Unlimited number of unused ports per
n Reduced electrical and mechanical
n Ultimate flexibility – Choose multi-port or
n Up to 72% reduction in footprint, as compared
n Up to 17% lower sound levels compared to
8, 10 and 12 port options
consideration required
box or system
installation costs
single-port styles to customize your design
to previous generation models
current VRV III models
n Up to 65% reduction in weight, as compared
BS10Q54TVJ
to previous generation models
Technical data for single-port branch selector boxes
Model BSQ36TVJ BSQ60TVJ BSQ96TVJ
Power supply 1 phase, 208/230V, 60Hz
Number of branches 1 1 1
Maximum capacity index 36 60 96
Maximum connectable indoor units 4 8 8
Mass (Weight) lbs. 27 27 33
Dimensions (HxWxD) in. 8-1/8 x 15-1/4 x 12-13/16
Technical data for multi-port branch selector boxes
Model BS4Q54TVJ BS6Q54TVJ BS8Q54TVJ BS10Q54TVJ BS12Q54TVJ
Power supply 1 phase, 208/230V, 60Hz
Number of branches 4 6 8 10 12
Maximum capacity index per branch 54
Maximum total capacity index 144 216 290
Maximum connectable indoor units per branch 5
Mass (Weight) lbs. 49 68 73 101 106
Dimensions (HxWxD) in.
11-3/4
x 14-9/16
x 18-15/16
11-3/4
x 2 2-13/16
x 18-15/16
11-3/4
x 32-5/16
x 18-15/16

Technical Data for VRV IV Heat Recovery Outdoor Units
6 Ton 8 Ton 10 Ton 12 Ton 14 To n
Model
Performance
Unit
Model
Performance
Unit
Model
Performance
Unit
Model
Performance
Unit
208-230V/3Ph/60Hz REYQ72TTJU REYQ96TTJU REYQ120TTJU REYQ144TTJU REYQ168TTJU
460V/3Ph/60Hz REYQ72TYDN REYQ96TYDN REYQ120TYDN REYQ144TYDN REYQ168TYDN
Rated Cooling Capacity BTU/h 69,000 92,000 114,000 138,000 160,000
Rated Heating Capacity BTU/h 77,000 103,000 129,000 154,000 180,000
Sound Pressure dB(A) 58 61 65
IEER (Ducted / Non-Ducted) 20.8 / 26.2 21.0 / 29.3 20.7 / 25.4 20.7 / 24.2 19.5 / 22.0
Airflow CFM 5,544 5,827 6,286 8,228 8,228
Weight (REYQ_TT /
REYQ_TY)
Dimensions (H x W x D) in.
208-230V/3Ph/60Hz REYQ192TTJU REYQ216TTJU REYQ240TTJU REYQ264TTJU REYQ288TTJU
460V/3Ph/60Hz REYQ192TYDN REYQ216TYDN REYQ240TYDN REYQ264TYDN REYQ288TYDN
Combination
Rated Cooling Capacity BTU/h 184,000 206,000 228,000 251,000 274,000
Rated Heating Capacity BTU/h 206,000 231,000 257,000 283,000 308,000
Sound Pressure dB(A) 63 64 66 68
IEER (Ducted / Non-Ducted) 20.4 / 22.9 20.2 / 22.9 19.2 / 21.9 18.1 / 21.6 18.2 / 21.4
Airflow CFM 5,544 + 6,286 5,827 + 6,286 5,827 + 8,228 6,286 + 8,228 8,228 + 8,228
Weight (REYQ_TT /
REYQ_TY)
Dimensions (H x W x D) in.
208-230V/3Ph/60Hz REYQ312TTJU REYQ336TTJU REYQ360TTJU REYQ384TTJU REYQ408TTJU
460V/3Ph/60Hz REYQ312TYDN REYQ336TYDN REYQ360TYDN REYQ384TYDN REYQ408TYDN
Combination
Rated Cooling Capacity BTU/h 297,000 320,000 342,000 365,000 388,000
Rated Heating Capacity BTU/h 334,000 360,000 385,000 411,000 427,000
Sound Pressure dB(A) 68 66 68 69
IEER (Ducted / Non-Ducted) 17.8 / 20.2 17.0 / 19.0 17.9 / 19.6 16.6 / 18.3 16.5 / 17.2
Airflow CFM 8,228 + 8,228 6,286 + 6,286 + 6,286 5,827 + 6,286 + 8,228 5,827 + 8,228 + 8,228
Weight (REYQ_TT /
REYQ_TY)
Dimensions (H x W x D) in.
208-230V/3Ph/60Hz
460V/3Ph/60Hz
Combination 3 x REYQ144T
Rated Cooling Capacity BTU/h 411,000 424,000
Rated Heating Capacity BTU/h 434,000 447,000
Sound Pressure dB(A) 70
IEER (Ducted / Non-Ducted) 16.5 / 16.2 15.9 / 16.2
Airflow CFM 8,228 + 8,228 + 8,228
Weight (REYQ_TT /
REYQ_TY)
Dimensions (H x W x D) in.
lbs 507 / 527 703 / 717 780 / 717 780 / 794
66-11/16 x 36-11/16 x
30-3/16
16 Ton 18 Ton 20 To n 22 Ton 24 Ton
1 x REYQ120T
1 x REYQ72T
lbs 507 + 703 / 527 + 717 703+ 703 / 717 + 717 703+ 780 / 717 + 794 780+780 / 79 4+79 4
(66-11/16 x 48-7/8 x
30-3/16) + (66-11/16
36-11/16
x
30-3/16)
26 Ton 28 Ton 30 Ton 32 Ton 3 4 Ton
1 x REYQ168T
1 x REYQ144T
lbs 780 + 780 / 794 + 794
(66-11/16 X 48-7/8 X 30-3/16) +
(66-11/16 X 48-7/8 X 30-3/16)
36 Ton 38 Ton
REYQ432TTJU REYQ456TTJU
REYQ432TYDN REYQ456TYDN
lbs 780 + 780 + 780 / 794 + 794+794
(66-11/16 x 48-7/8 x 30-3/16) + (66-11/16 x 48-
7/8 x 30-3/16) + (66-11/16 x 48-7/8 x 30-3/16)
1 x REYQ120T
1 x REYQ96T
x
2 x REYQ168T 3 x REYQ120T
1 x REYQ168T
2 x REYQ144T
(66-11/16 x 48 - 7/8 x 30-3/16) + (66-11/16 x 48-7/8 x 30-3/16)
66-11/16 x 48-7/8 x 30-3/16
1 x REYQ144T
1 x REYQ96T
703 + 703 + 703 / 717
+ 717 + 717
(66-11/16 x 48-7/8 x 30-3/16) + (66-11/16 x 48-7/8 x
30-3/16) + (66-11/16 x 48-7/8 x 30-3/16)
Operation range for all VRV IV Heat Recovery
Outdoor Units
Cooling °F DB 23 - 122
Heating °F WB -13 - 60
For additional technical information and all equipment installation
and application limitations please refer to the specific Engineering
Data Books.
1 x REYQ144T
1 x REYQ120T
1 x REYQ168T
1 x REYQ120T
1 x REYQ96T
703 + 703 + 780 / 717
+ 717 + 794
2 x REYQ144T
1 x REYQ168T
1 x REYQ144T
1 x REYQ96T
780 + 780 + 780 / 717 +
794 + 794
Our continuing commitment to quality products may mean a change in specifications without notice.
© 2015 · Houston, Texas · USA.
CB-VRV4-ACHR 01-15