37
Back
Right
Front
Bottom
Connectable Indoor Unit
Number
Connectable Indoor Unit
Capacity
Connectable Branch Box
Number
Nominal Cooling
BTU/h
Max Cooling
BTU/h
Nominal Heating
BTU/h
Low Temp. Heating 17°F
BTU/h
Max Heating
BTU/h
Clg. Operating Range °F(°C)
Htg. Operating Range °F(°C)
Input Power: Cooling Rated kW*
Input Power: Heating Rated kW*
Voltage/Frequency/Phase
Current: Clg Outdoor Max.
(A)
Current: Htg Outdoor Max.
(A)
Recommended Fuse Size
(A)
Outdoor Fan Speed
RPM
(Clg/Htg)
Fan: Type x Quantity
Fan Motor Output W
Sound Pressure Level Cooling
dB(A)
Sound Pressure Level Heating
dB(A)
Max. Pipe Length Total
Ft (m)
Max. Pipe Length Between Box &
Farthest Indoor Unit
Ft (m)
Max. Pipe Height Difference Between
Outdoor Unit & Branch Box
Ft (m)
Max. Pipe Height Difference
Between Indoor Units
Ft (m)
Max. Pipe Height Difference Between
Outdoor Unit & Farthest Indoor
Ft (m)
Connection Method
Conn. Pipe Diameter
Inch
Net Weight
lbs.
(kg)
Dimensions: Height
Inch
mm
Width
Inch
mm
Depth
Inch
mm
Refrigerant
AOU48RLXFZ1
Heat Pump
2 to 8
80 to 130% Nominal
(39,000 - 62,000 BTU)
1 to 3
48,000
51,100
54,000
40,000
57,000
23-115 (-5-46)
5-75 (-15-24)
5.52 / 5.19 / 5.35
5.02 / 4.89 / 4.96
208-230/60/1
24.5 / 23.0 / 23.7
22.3 / 21.7 / 22.0
40
890/910
Propeller x 1
111
56
58
377 (115)
49 (15)
98 (30)
49 (15)
98 (30)
Flare
3/8 (Liq.) 5/8 (Suc.)
216 (98)
36
914
38-1/4
970
14-5/8
370
R410A
Compact Size
The compact size of outdoor unit AOU48RLXFZ1 allows for
many installation opportunities.
Self Diagnostic Feature
This printed circuit board provides
three modes of diagnostics -
setting, monitoring and function
mode, as well as error codes.
It also provides a pre-
commissioning check function.
Setting mode allows optional
functions to be selected. Monitoring mode provides temperature
for each thermistor, compressor operation and other functions.
Function mode provides cooling test run, heating test run and
pump down operation.
Piping Flexibility
Contractors can choose the
best direction for piping from
the outdoor unit.
DC Twin Rotary Compressor
A high performance, low noise,
large capacity DC twin rotary
compressor is used. Includes
Quiet Mode for night operation.
Connect 2 to 8 indoor units
80 to 130% connectable capacity
Connect 39,000 to 62,000 BTU
SEER
HSPF
EER**
Ducted
14.7
9.3
8.7
Non-Ducted
17.0
9.8
9.25
Mixed
15.8
9.5
8.97
**Cooling
*Ducted / Non-Ducted / Mixed
40” minimum
clearance
required
2 Indoor Units
18k BTU/h + 24 k BTU/h = 42k BTU/h ··OK
12k BTU/h + 24 k BTU/h = 36k BTU/h ··Not
Allowed (below 80%)
8 Indoor Units
7k BTU/h × 8 units = 56k BTU ··OK
9k BTU/h × 8 units = 72k BTU ··Not Allowed
(over 130%)
Flex Zone Outdoor Unit
48,000 BTUs
AOU48RLXFZ1
f
lex
48,000 BTUs
Summary of Contents for 12RL2
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