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