Design and Technical Manual

4. INDOOR UNITS
SLIM DUCT TYPE2-2.
Model name ARU7RLF ARU9RLF ARU12RLF ARU18RLF ARU24RLF
Power source 1ø 208/230V 60Hz
Available voltage range 187-264V
Capacity
Cooling Rated
Btu/h 7,000 9,000 12,000 18,000 24,000
kW 2.04 2.64 3.51 5.28 7.02
Heating Rated
Btu/h 8,100 10,200 13,500 20,000 27,000
kW 2.37 3.00 3.96 5.85 7.92
Input Power W 33 49 58 73 111
Running current A 0.30 0.30 0.35 0.44 0.66
Fan
Airow
rate
Cooling
High
CFM
(m
3
/h)
324 (550) 353 (600) 383 (650) 554 (940) 783 (1330)
Med 288 (490) 324 (550) 353 (600) 518 (880) 730 (1240)
Low 277 (470) 294 (500) 324 (550) 483 (820) 648 (1100)
Quiet 259 (440) 265 (450) 283 (480) 442 (750) 607 (1030)
Heating
High 324 (550) 353 (600) 383 (650) 554 (940) 783 (1330)
Med 288 (490) 324 (550) 353 (600) 518 (880) 730 (1240)
Low 277 (470) 294 (500) 324 (550) 483 (820) 648 (1100)
Quiet 259 (440) 265 (450) 283 (480) 442 (750) 607 (1030)
Fan type ×Q'ty Sirocco × 2 Sirocco × 3 Sirocco × 4
Fan motor output W 80 81 81 81 81
Recommended static pressure in.WG (Pa)
0 to 0.36
(0 to 90)
0 to 0.36
(0 to 90)
0 to 0.36
(0 to 90)
0 to 0.36
(0 to 90)
0 to 0.20
(0 to 50)
Sound pressure level
Cooling
High
dB (A)
28 28 29 32 33
Med 26 27 28 31 32
Low 25 26 27 30 30
Quiet 24 25 26 29 29
Heating
High 28 28 29 33 35
Med 26 26 28 32 34
Low 25 25 27 31 32
Quiet 24 24 24 29 29
Heat
exchanger
Dimension(H × W × D) in.(mm)
11-9/16 × 19-
11/16 × 1-1/16
(294 × 500 ×
26.6)
11-9/16 × 19-11/16 × 1-9/16
(294 × 500 × 39.9)
11-9/16 × 27-
9/16 × 1-9/16
(294 × 700 ×
39.9)
11-9/16 × 35-
7/16 × 1-9/16
(294 × 900 ×
39.9)
Fin pitch FPI 20
Rows × Stages 2 × 14 3 × 14
Pipe type Copper tube
Fin Type Aluminum
Enclosure
Material GALVANIZED STEEL SHEET
Color -
Dimensions
( H × W ×D )
Net
in.(mm)
7-13/16 x 27-9/16 x 24-7/16
(198 × 700 × 620)
7-13/16 x 35-
7/16 x 24-7/16
(198 × 900 ×
620)
7-13/16 x 43-
5/16 x 24-7/16
(198 × 1100 ×
620)
Gross
10-13/16 x 37-3/16 x 30-3/8
(274 × 945 × 772)
10-13/16 x 45-
1/16 x 30-3/8
(274 × 1145 ×
772)
10-13/16 x 52-
15/16 x 30-3/8
(274 × 1345 ×
772)
Weight
Net
lbs.(kg)
37 (17) 40 (18) 49 (22) 55 (25)
Gross 49 (22) 51 (23) 60 (27) 68 (31)
Connection
pipe
Size
Liquid
in.(mm)
Ø1/4 (Ø6.35)
Gas Ø3/8 (Ø9.52) Ø1/2 (Ø12.70) Ø5/8 (Ø15.88)
Method Flare
Drain hose
Material HARD PVC
size in.[mm] Ø 1 (I.D.), Ø 1-1/4 (O.D.) [Ø 25 (I.D.), Ø 32 (O.D.)]
Operation range
Cooling
°F (°C) 64 to 90 (18 to 32)
%RH 80 or less
Heating °F (°C) 60 to 88 (16 to 31)
Remote controller type Wired [Wireless (option)]
Note: Specications are based on the following conditions.
Power source of specications: 230V
Cooling: Indoor temperature of 80°F(26.7°C)DB/67°F(19.4°C)WB,and outdoor temperature of 95°F(35°C)DB/75°F(23.9°C)WB.
Heating: Indoor temperature of 70°F(21.1°C)DB/60°F(15.6°C)WB,and outdoor temperature of 47°F(8.3°C)DB/43°F(6.1°C)WB.
Standard static pressure: 0.10in.WG (25Pa)
Pipe length: 16.4ft.(5m) [Outdoor unit - Branch box], 9.8ft. (3m) [Branch box - Indoor unit]
Height difference: 0 ft.(0m) [Outdoor unit - Indoor unit].
The protective function might work when using it out the operation range.
- (04 - 09) -
INDOOR UNITS INDOOR UNITS