4 _ Ceiling Concealed Duct(High Static)
Indoor Units
Notes:
1. Capacities are based on the following conditions:
    Cooling    • Indoor temp. 27°C[80.6°F]DB/ 19°C[66.2°F]WB
                    • Outdoor temp. 35°C[95°F]DB/ 24°C[75.2°F]WB
                    • Interconnecting Piping Length 7.5m
                    • Level Difference of Zero
    Heating   • Indoor temp. 20°C[68°F]DB/ 15°C[59°F]WB
                    • Outdoor temp. 7°C[44.6°F]DB/ 6°C[42.8°F]WB
                    • Interconnecting Piping Length 7.5m
                    • Level Difference of Zero
2. Capacities are net capacities
3. Due to our policy of innovation some specifications may be changed without prior notification
4. Wiring cable size must comply with the applicable local and national codes. And “Electric characteristics” chapter should be con-
sidered for electrical work and design. Especially the power cable and circuit breaker should be selected in accordance with that.
5. EEV : Electronic Expansion Valve
6. Sound pressure levels are measured at External Static Pressure condition like below.
- ARNU54GBRA4 : 50Pa
- ARNU76GB8A4 / ARNU96GB8A4 (H/M/L) : 220Pa / 150Pa / 120Pa
7. Anechoic chamber conversion value is measured at 1.5 m downward from unit centre. 
The values depends on the ambient conditions and values are normally higher in actual operation.
Conversion Formula
kcal/h= kW x 860
Btu/h = kW x 3412
cfm = m
3
/min x 35.3
l/s = CMM x 1000/60 
 Type
 Model                               Unit
                                                                       kW
 Cooling Capacity                                         kcal/h
                                                                      Btu/h
                                                                       kW
 Heating Capacity                                         kcal/h
                                                                      Btu/h
 Casing  
 
Dimensions(WxHxD)
 
Body
                                 mm
                                                                       inch
 
Coil
 
Rows x Columns x FPI
 
                             Face Area                          m
2
                             Type  
 
Motor Output x Number           
W
                             Running Current                 A
 
Air Flow Rate(H / M / L)
       CMM
 
(High Mode-factory set)
        cfm
 Fan  
External Static Pressure
 mmAq(Pa)
 
Air Flow Rate(H / M / L)
       CMM
                             (Standard Mode)               cfm
 
External Static Pressure
 mmAq(Pa)
                             Drive  
                             Motor type  
 Temperature Control  
 Sound Absorbing Thermal Insulation Material
 Air Filter
 Safety Device  
 
 
Liquid Side                    mm(inch)
 
Pipe Connections
  Gas Side                       mm(inch)
 
Drain Pipe(Internal Dia.)
     mm(inch)
 Net Weight                                                  kg(lbs)
 
Noise Level
(Sound Pressure, 1.5m, H / M / L)
       dB(A)
 Power Supply                                            Ø, V, Hz
 Refrigerant Control 
 Transmission cable                                      mm
2
Ceiling Concealed Duct(High Static)
ARNU54GBRA4
15.8 
13,600 
54,000 
18.0 
15,500 
61,400 
Galvanized Steel Plate
1,230 x 380 x 590
48-7/16 x 14-31/32 x 23-7/32 
3 x 13 x 19
0.38
Sirocco Fan
185 x 2
3.5
51.0 / 44.8 / 40.6
1,801 / 1,582 / 1,434
14(137)
51.5 / 47.5 / 39.5
1,819 / 1,678 / 1,395
10(98)
Direct
BLDC
Microprocessor, Thermostat for cooling and heating
Foamed polystrene
-
Fuse
Ø9.52(3/8)
Ø15.88(5/8)
25(1)
53(117)
39 / 37 / 35
1, 220-240, 50
1, 220, 60
EEV
CVV-SB 1.0 ~ 1.5 × 2C
ARNU76GB8A4
22.4
19,300
76,400
25.2
21,700
86,000
Galvanized Steel Plate
1,562 x 460 x 688 
61-1/2 x 18-1/8 x 27-3/32 
3 x 21 x 19
0.59
Sirocco Fan
375 x 2
5.2
60.0 / 50.0 / 50.0
2,119 / 1,766 / 1,766
22(216)
64.0 / 50.0 / 50.0
2,260 / 1,766 / 1,766
15(147)
Direct
BLDC
Microprocessor, Thermostat for cooling and heating
Foamed polystrene
-
Fuse
Ø9.52(3/8)
Ø19.05(3/4)
25(1)
87(192)
45 / 41 / 40
1, 220-240, 50
1, 220, 60
EEV
CVV-SB 1.0~1.5 x 2C
ARNU96GB8A4
28.0
24,100
95,900
31.5
27,100
107,500
Galvanized Steel Plate
1,562 x 460 x 688 
61-1/2 x 18-1/8 x 27-3/32 
3 x 21 x 19
0.59
Sirocco Fan
375 x 2
5.2
72.0 / 64.0 / 64.0
2542 / 2,260 / 2,260
22(216)
76.0 / 64.0 / 64.0
2,684 / 2,260 / 2,260
15(147)
Direct
BLDC
Microprocessor, Thermostat for cooling and heating
Foamed polystrene
-
Fuse
Ø9.52(3/8)
Ø22.2(7/8)
25(1)
87(192)
47 / 42 / 41
1, 220-240, 50
1, 220, 60
EEV
CVV-SB 1.0~1.5 x 2C