HITACHI SELF-CONTAINED

AIR CONDITIONERS

Nominal Cooling Capacity Technical Catalog Ⅰ (50Hz)

10,100 kcal/h to 78,100 kcal/h ─Design Information─
11,700 W to 90,800 W Models : RUA-4AT3S
40,100 Btu/h to 310,100 Btu/h RUA-5AT3S
RUA-6AT3S
RUA-8AT3S
RUA-9AT3S
RUA-10AT3S
RUA-13AT3S
RUA-15AT3S
RUA-20AT3S
RUA-25AT3S
RUA-30AT3S

These HITACHI self-contained air condi- These RUA units are provided with excellent
tioners are composed of compressors, air- performances that can be operated up to 52°C
cooled condensers, and an evaporator fan, (125°F) of maximum ambient temperature,
condenser fans and control equipment, and the light weight, compact, weather proof
completely packaged in a weather proof design techniques make these air conditioners
cabinet, and are completely assembled, wired ideal for either on-the-ground or rooftop
and tested at the factory. installation.

TU-TCⅠ-10G (X4)
 FEATURES

EFFICIENT, RELIABLE AND DURABLE NEW SERIES‧‧‧

Baked Paint Galvanized Steel Panels Energy-Saving Design
★ ★

Corrosion Resistant Cabinet ─ The weather proof Highly-Efficient Compressor ─ Low power input is
characteristics of the panels have been significantly achieved by specially developed compressors and heat
reinforced by the adoption of galvanized steel panel which exchanger and their suitable combinations.
have been coated with synthetic resin paint through our Condenser ─ The adoption of a highly efficient super-slit
unique baking process. The resistant panels ensure long- fin heat exchanger provides low operation cost.
lasting fine appearance, and maintenance work has been Evaporator ─ Highly efficient super-slit fin coils and inner
minimized. grooved tube have been applied, to provide a large cooling
★
Reliable Protection System capacity with low noise.
Compressor Protection ─ Each compressor is protected Insulated Indoor Compartment ─ This insulation
with the following components: reverse phase protection, compartment effectively eliminates heat loss.
overcurrent protector, internal thermostat, high pressure Capacity Control (Dual circuit units) ─ Each unit is
switch, delay timer. This wide variety of protection devices equipped with two or three compressors and two or three
provides perfect compressor guarding functions, assuring independent refrigeration cycles so that one compressor
fewer service calls from customers. operation can reduce the operation cost against a half load
Fan Motor ─ The evaporator fan motors are protected with of one large compressor (60% load operation is available
thermal overcurrent relay, internal thermostat (RUA-4AT3S, for RUA-13AT3S and RUA-15AT3S, 66% load operation is
RUA-5AT3S only) and the condenser fan motors are available for RUA-30AT3S)
protected with an internal thermostat.

Overcurrent Transformer Transformer

Evaporator Fan

Evaporator

Evaporator Motor

Model RUA-30AT3S Condenser Compressor Model RUA-15AT3S

EFFECTIVELY MATCHED SELECTION FOR INDIVIDUAL APPLICATIONS‧‧‧

Optimum Matched Choice Quiet Operation
★ ★

High Temperature Operation ─ Designed for high Compressor ─ Noise and vibration have been effectively
outdoor temperatures, these units guarantee reliable reduced by the adoption of new hermetic compressor.
operation even under condition up to an ambient
Condenser Fan ─ This direct driven propeller fan is
temperature of 52°C(125°F).
dynamically balanced to ensure smooth airflow.
Attractive Fan Performance ─ Adequate external static
Evaporator Fan ─ The centrifugal fan and fan casing are
pressure by the evaporator fan can be obtained for
optimum shaped for efficient and low noise operation.
individual ducting applications.
★
Reduced Maintenance Work
Minimum Installation Arrangement
★

Easy Maintenance ─ Large service spaces and rapidly

Easy Installation ─ This easy-to-install and ready-to-
removable service panels have been provided for easy
operate unit ensure rapid and low cost installation work.
maintenance work.
Pre-Drilled Duct Flange ─ Flanges are prepared at the
supply and return duct connections so that they can reduce
duct connection work at the site.
Factory-Completed ─ Only system connection work is
required, excluding the installation work for auxiliary
equipment.
2
 GENERAL DATA

Unit General Data

Models RUA-4AT3S RUA-5AT3S RUA-6AT3S RUA-8AT3S RUA-9AT3S RUA-10AT3S
kcal/h 10,100 12,500 15,500 18,600 23,200 26,300
Nominal Cooling Capacity
W 11,700 14,600 18,000 21,700 27,000 30,600
at 35°C outdoor temperature*
Btu/h 40,100 49,700 61,500 73,900 92,300 104,500
kcal/h 8,900 11,300 14,000 16,700 20,900 23,700
Nominal Cooling Capacity
W 10,400 13,200 16,300 19,400 24,300 27,600
at 46°C outdoor temperature**
Btu/h 35,300 44,900 55,600 66,300 83,000 94,100
Capacity Control % 100,0 100,0 100,0 100,0 100,0 100,0
Cabinet Synthetic Resin Paint Baked on Galvanized Steel Plates
Color (MUNSELL CODE) Beige (2.5Y 8/2)
mm 673 673 773 773 983 983
Height
(in.) (26-1/2) (26-1/2) (30-7/16) (30-7/16) (38-11/16) (38-11/16)
Outer mm 1,020 1,020 1,020 1,020 1,020 1,020
Width
Dimensions (in.) (40-3/16) (40-3/16) (40-3/16) (40-3/16) (40-3/16) (40-3/16)
mm 1,460 1,460 1,460 1,660 1,660 1,660
Depth
(in.) (57-1/2) (57-1/2) (57-1/2) (65-3/8) (65-3/8) (65-3/8)
kg 195 195 220 275 290 305
Net Weight
(lbs.) (430) (430) (485) (606) (638) (672)
Refrigerant R-22
Flow Control Capillary Tube
Number of Circuits 1
Compressor Hermetic Scroll
Model 400DH 500DH 600DH 750EL 900EL 1000EL
Motor kW 3.0 3.75 4.4 5.5 6.8 7.5
(hp) (4) (5) (6) ( 7.5 ) ( 9.0 ) ( 10 )
Quantity 1 1 1 1 1 1
Condenser Multi-Pass Cross-Finned Tube
Fan Propeller Fan
3
Air Flow m /min 120 120 135 135 160 160
Motor kW 0.3 0.3 0.45 0.45 0.4 0.4
(hp) ( 2/5 ) ( 2/5 ) ( 3/5 ) ( 3/5 ) ( 1/2 ) ( 1/2 )
Quantity 1 1 1 1 1 1
Evaporator Multi-Pass Cross-Finned Tube
Fan Multi-Blade Centrifugal Fan (Double Suction)
3
Nominal Air Flow m /min 37 46 65 69 82 90
3
m /s 0.62 0.77 1.08 1.15 1.37 1.5
L/s 620 770 1,080 1,150 1,370 1,500
Motor kW 0.35 0.55 0.75 0.75 1.5 1.5
(hp) ( 1/2 ) ( 3/4 ) (1) (1) (2) (2)
Quantity 1 1 1 1 1 1
Connections
Condensate Drain Female Piping Thread Screw
Size FTP 3/4 3/4 3/4 3/4 3/4 3/4
Quantity 1 1 1 1 1 1
Wiring Hole Knockout Hole
Main mm ¯52 ¯52 ¯52 ¯52 ¯52 ¯52
(in.) (2-1/16) (2-1/16) (2-1/16) (2-1/16) (2-1/16) (2-1/16)
Control mm ¯26.1 ¯26.1 ¯26.1 ¯26.1 ¯26.1 ¯26.1
(in.) (1-1/32) (1-1/32) (1-1/32) (1-1/32) (1-1/32) (1-1/32)
kg 215 215 250 305 320 335
Shipping Weight
(lbs.) (473) (473) (551) (672) (704) (738)
mm 805 805 925 925 1,135 1,135
Height
(in.) (31-11/16) (31-11/16) (36-7/16) (36-7/16) (44-11/16) (44-11/16)
Approximate mm 1,100 1,100 1,080 1,080 1,080 1,080
Width
Packing List (in.) (43-5/16) (43-5/16) (42-1/2) (42-1/2) (42-1/2) (42-1/2)
mm 1,550 1,550 1,550 1,730 1,730 1,730
Depth
(in.) (61-1/16) (61-1/16) (61-1/16) (68-1/8) (68-1/8) (68-1/8)
3
Measurements m 1.37 1.37 1.55 1.73 2.12 2.12

3
 GENERAL DATA

Unit General Data (Continued)

Models RUA-13AT3S RUA-15AT3S RUA-20AT3S RUA-25AT3S RUA-30AT3S
kcal/h 31,300 38,800 52,700 61,000 78,100
Nominal Cooling Capacity
W 36,400 45,100 61,300 70,930 90,800
at 35°C outdoor temperature*
Btu/h 124,300 154,100 209,300 242,050 310,100
kcal/h 28,300 35,000 47,500 53,800 70,400
Nominal Cooling Capacity
W 32,900 40,700 55,200 62,560 81,900
at 46°C outdoor temperature**
Btu/h 112,300 139,000 188,600 213,480 279,500
Capacity Control % 100,60,0 100,60,0 100,50,0 100,50,0 100,66,0
Cabinet Synthetic Resin Paint Baked on Galvanized Steel Plates
Color (MUNSELL CODE) Beige (2.5Y 8/2)
mm 980 980 1,500 1,500 1,500
Height
(in.) (38-19/32) (38-19/32) (59-1/16) (59-1/16) (59-1/16)
Outer mm 1,400 1,400 1,900 1,900 1,900
Width
Dimensions (in.) (55-1/8) (55-1/8) (74-13/16) (74-13/16) (74-13/16)
mm 2,135 2,135 1,945 2,425 2,425
Depth
(in.) (84) (84) (76-9/16) (95-1/2) (95-1/2)
kg 495 520 785 935 1,000
Net Weight
(lbs.) (1,089) (1,146) (1,730) (2,061) (2,205)
Refrigerant R-22 R-22
Flow Control Capillary Tube Capillary Tube
Number of Circuits 2 3
Compressor Hermetic Scroll
Model 750EL / 500DH 1000EL / 600DH 1000EL 1200EL 1000EL
Motor kW 5.5 / 3.75 7.5 / 4.4 7.5 9.0 7.5
(hp) ( 7.5 ) / ( 5 ) ( 10 ) / ( 6 ) ( 10 ) ( 12 ) ( 10 )
Quantity 1/1 1/1 2 2 3
Condenser Multi-Pass Cross-Finned Tube
Fan Direct Driven Propeller Fan
3
Air Flow m /min 255 270 320 480 480
Motor kW 0.4/0.3 0.3 0.3 0.3 0.3
(hp) ( 1/2 ) / ( 2/5 ) ( 2/5 ) ( 2/5 ) ( 2/5 ) ( 2/5 )
Quantity 1/1 2 2 3 3
Evaporator Multi-Pass Cross-Finned Tube
Fan Multi-Blade Centrifugal Fan (Double Suction)
3
Nominal Air Flow m /min 110 130 180 234 260
3
m /s 1.83 2.17 3.0 3.9 4.33
L/s 1,830 2,170 3,000 3,900 4,330
Motor kW 2.2 2.2 3.7 5.5 5.5
(hp) (3) (3) (5) ( 7.5 ) ( 7.5 )
Quantity 1 1 1 1 1
Connections
Condensate Drain Female Piping Thread Screw
Size FTP 3/4 3/4 1 1 1
Quantity 2 2 2 2 2
Wiring Hole Knockout Hole
Main mm ¯52 ¯52 ¯52 ¯52 ¯52
(in.) (2-1/16) (2-1/16) (2-1/16) (2-1/16) (2-1/16)
Control mm ¯26.1 ¯26.1 ¯32.5 ¯32.5 ¯32.5
(in.) (1-1/32) (1-1/32) (1-1/4) (1-1/4) (1-1/4)
kg 550 570 945 1,125 1,180
Shipping Weight
(lbs.) (1,211) (1,256) (2,083) (2,480) (2,601)
mm 1,150 1,150 1,680 1,680 1,680
Height
(in.) (45-5/16) (45-5/16) (66-1/8) (66-1/8) (66-1/8)
Approximate mm 1,460 1,460 2,100 2,100 2,100
Width
Packing List (in.) (57-1/2) (57-1/2) (82-11/16) (82-11/16) (82-11/16)
mm 2,220 2,220 2,045 2,525 2,525
Depth
(in.) (87-3/8) (87-3/8) (80-1/2) (99-7/16) (99-7/16)
3
Measurements m 3.73 3.73 7.21 8.91 8.91
Notes：
1.The capacities are gross capacities, which include the effect of evaporator fan motor heat.
2. The nominal cooling capacity is according to JIS standard B8616–1999, and based on the following conditions.
Evaporator Air Inlet Temperature Condenser Air Inlet Temperature:
27°C DB (80°F DB) *35°C DB (95°F DB)
19°C WB (66°F WB) **46°C DB (115°F DB)