Fujitsu AOU18RLXFZH, AOU24RLXFZH User Manual
XLTH Outdoor Units 18, 24,000 BTUs
AOU18RLXFZH, AOU24RLXFZH
18, 24,000 BTUs
Ambient Heating Temperature of -15°F
Other models may go as low as -5°F, however they
do not include a base heater and other advancements
found in XLTH models.
The base of Fujitsu’s XLTH
outdoor condensing units.
Base Heater
When temperatures reach
36°F, a built-in heater warms
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
Minimum Circuit Ampacity (A)
Outdoor Fan Airflow CFM (Clg/Htg)
the base of the outdoor unit
so that condensation doesn’t
freeze. Without a heater,
freezing condensate can
cause noise, damage to the
fan blade, condenser, and
system performance.
Base Drainage Holes
The cultivated base
design discharges
melted water through
many holes located at
the bottom of the unit.
Improved Heating Capacity
Heating capacity at
100
Sound Pressure Level Cooling
Sound Pressure Level Heating dB(A)
Pre-Charge Length Total Ft (m)
Max. Length Total Ft (m)
Max. Length Each 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)
low outdoor temperatures
was improved by adopting
a large heat exchanger
and a high capacity
50
RLXFZ
(Standard
Multi-Zone)
RLXFZH
Conn. Pipe Diameter
compressor.
% of Heating Capacity
47 5 -15
Ambient Temperature (F°)
Nominal Capacities, SEER and HSPF Ratings
Data below is based on AHRI 210/240 non-ducted wall mounted models.
Model
Non-Ducted 9+9 18,000 13.5 21.5 22,000 14,200 23,600 22,000 3.79 10.3
AOU18RLXFZH
Non-Ducted 9+7+7 22,000 13.3 20.0 25,000 15,400 26,400 25,000 4.04 10.3
AOU24RLXFZH
Yellow rows represent models that are ENERGY STAR®qualified.
Indoor Unit
Typ e Combination 95◦F 47◦F 17◦F 17◦F 5◦F 47◦F
Ducted 9+9 18,000 12.4 19.0 22,000 14,200 23,600 22,000 3.60 9.0
Mixed 9+9 18,000 13.0 20.3 22,000 14,200 23,600 22,000 3.70 9.7
Ducted 9+7+7 22,000 12.1 18.0 25,000 15,400 26,400 25,000 3.87 9.0
Mixed 9+7+7 22,000 12.7 19.0 25,000 15,400 26,400 25,000 3.96 9.7
Cooling
Capacity
Btu/h
EER SEER
Current: Total Max.
MAX.CRT.BKR (A)
Fan: Type x Quantity
Min. Length Total Ft (m)
Connection Method
Net Weight lbs. (kg)
Dimensions: Height Inch
Heating Rated
Capacity
Btu/h
(A)
dB(A)
Inch
mm
Width Inch
mm
Depth Inch
mm
Refrigerant
Heating Maximum
AOU
18RLXFZH
Heat Pump
2 2 to 3
14,000 to 21,000 14,000 to 27,000
18,000/22,000 22,000/25,000
14 to 115
(-10 to 46)
-15 to 75
(-26 to 24)
1.33/1.70 1.65/1.81
208-230/60/1 208-230/60/1
16.4 20.8
19.7 25.1
20 30
1,648/1,648 1,942/1,942
Propeller x 1 Propeller x 1
48 50
50 52
98 (30) 98 (30)
164 (50) 230 (70)
82 (25) 82 (25)
49 (15) 49 (15)
16 (5) 16 (5)
49 (15) 49 (15)
33 (10) 33 (10)
Flare Flare
Liq. 1/4 x 2
Suc. 3/8 x 2
134 (61) 146 (66)
32-11/16 32-11/16
830 830
35-7/16 35-7/16
900 900
13 13
330 330
R410A R410A
Capacity
Btu/h
AOU
24RLXFZH
Heat Pump
14 to 115
(-10 to 46)
-15 to 75
(-26 to 24)
Liq. 1/4 x 3
Suc. 1/2 x 1,
3/8 x 2
COP
HSPF
343
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