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Multi-Zone Outdoor Units 18, 24 and 36,000 BTUs
AOU18RLXFZ, AOU24RLXFZ, AOU36RLXFZ
AOU
18RLXFZ
Heat Pump
ASU9+ASU9
AOU
24RLXFZ
Heat Pump
ASU9+ASU7+ASU7
AOU
36RLXFZ
Heat Pump
ASU9 x 4
AOU
36RLXFZ
18+18 Combo
1
ASU18+ASU18
2 2 to 3 3 to 4 2
1
14 to 21,000
2
14 to 27,000
2
27 to 39,000
2
36,000
1
18,000/22,000 22,000/24,000 35,200/36,400 31,600/35,800
14 to 115
(-10 to 46)
14 to 115
(-10 to 46)
32 to 115
(0 to 46)
50 to 115
(10 to 46)
5 to 75
(-15 to 24)
5 to 75
(-15 to 24)
14 to 75
(-10 to 24)
14 to 75
(-10 to 24)
1.44/1.87 1.76/1.73 4.00/3.00 3.98/3.66
208-230/60/1 208-230/60/1 208-230/60/1 208-230/60/1
10.0 13.7 20.1 20.1
13 17 25 25
25 25 30 30
1,795/1,619 1,942/1,942 2,119/2,237 2,119/2,237
Propeller x 1 Propeller x 1 Propeller x 1 Propeller x 1
49 51 53 53
49 52 55 55
98 (30) 98 (30) 164 (50) 66 (20)
164 (50) 164 (50) 230 (70) 131 (40)
82 (25) 82 (25) 82 (25) 82 (25)
49 (15) 49 (15) 66 (20) 49 (15)
16 (5) 16 (5) 16 (5) 25 (7.5)
49 (15) 49 (15) 49 (15) 49 (15)
33 (10) 33 (10) 33 (10) 33 (10)
Flare Flare Flare Flare
Liq. 1/4 x 2
Suc. 3/8 x 2
Liq. 1/4 x 3
Suc. 1/2 x 1,
3/8 x 2
Liq. 1/4 x 4
Suc. 1/2 x 1,
3/8 x 3
Liq. 3/8 x 2
Suc. 1/2 x 2
1
119 (54) 124 (56) 149 (68) 149 (68)
27-9/16 27-9/16 32-11/16 32-11/16
700 700 830 830
35-7/16 35-7/16 35-7/16 35-7/16
900 900 900 900
13 13 13 13
330 330 330 330
R410A R410A R410A R410A
Compact Size
The compact size of the outdoor
units allows for many installation
opportunities.
DC Twin Rotary
Compressor
A high perform-
ance, low noise,
large capacity
DC twin rotary
compressor is
used.
1
18+18 is the only 2 indoor unit (ASU, ARU or AUU) combination and requires K9FZ1818.
2
See Design & Technical Manual for allowed combinations within this connectable capacity range.
Model
Indoor Unit
Cooling
Capacity
Btu/h
EER SEER
Heating Capacity
Btu/h
COP
HSPF
Type Combination
95
◦
F 47
◦
F 17
◦
F 47
◦
F
AOU18RLXFZ
Non-Ducted ASU9+ASU9 18,000 12.50 18.0 22,000 13,900 3.44 9.3
Ducted - 18,000 12.10 16.0 22,000 13,900 3.52 9.0
Mixed - 18,000 12.30 17.0 22,000 13,900 3.48 9.2
Specific
ASU7+ASU12 and
ASU9+ASU12
18,000 12.50 18.0 22,000 13,900 3.67 9.0
AOU24RLXFZ
Non-Ducted ASU9+ASU7+ASU7 22,000 12.50 18.0 24,000 14,100 4.04 9.5
Ducted - 22,000 10.60 15.5 24,000 14,100 3.42 9.0
Mixed - 22,000 11.55 16.8 24,000 14,100 3.74 9.3
AOU36RLXFZ
Non-Ducted - 35,200 8.80 16.0 36,400 22,000 3.56 9.4
Ducted - 33,800 8.10 14.5 36,400 21,200 3.08 8.7
Mixed - 34,400 8.45 15.3 36,400 21,600 3.32 9.1
Nominal Capacities, SEER and HSPF Ratings
Data below is based on AHRI 210/240 non-ducted wall mounted models.
Yellow rows represent models that are ENERGY STAR
®
Qualified.
AOU18, 24RLXFZ
Connectable Indoor Unit Number
Connectable Unit Capacity Class BTU/h
Rated Capacity Cooling/Heating BTU/h
Clg. Operating Range °F(°C)
Htg. Operating Range °F(°C)
Input Power: Clg/Htg Rated kW*
Voltage/Frequency/Phase
Current: Total Max.
(A)
Minimum Circuit Ampacity (A)
Recommended Fuse Size (A)
Outdoor Fan Airflow CFM (Clg/Htg)
Fan: Type x Quantity
Sound Pressure Level Cooling
dB(A)
Sound Pressure Level Heating dB(A)
Pre-Charge Length Total Ft (m)
Max. Length Total Ft (m)
Max. Length Each Ft (m)
Min. Length Total Ft (m)
Min. Length Each Ft (m)
Max. Pipe Height Difference Between
Outdoor Unit & Farthest Indoor Ft (m)
Max. Pipe Height Difference
Between Indoor Units Ft (m)
Connection Method
Conn. Pipe Diameter
Inch
Net Weight lbs. (kg)
Dimensions: Height Inch
mm
Width Inch
mm
Depth Inch
mm
Refrigerant
AOU36RLXFZ
24” minimum
clearance
required