Mitsubishi Electric PAAA18AA1 Installation Manual page 25

PAA-series (Cased A-Coil) Connection
Maximum total piping with PAA connection depends on the number of PAA indoor units connected. Please
refer to the table below for the appropriate total maximum piping length the system can be designed to.
Model
MXZ-8C48NA2
MXZ-4C36/42/48NAHZ2
MXZ-SM36/48NAM
MXZ-SM36/42/48NAMHZ
MXZ-8C60NA2
MXZ-SM60NAM
NOTE
For extended piping lengths, please refer to Diamond System Builder (DSB).
The above chart is for M-Series. For P-Series follow guidelines in the P-Series installation manual.
PAA unit airflow restriction table
Airflow
CMM
Maximum
CFM
CMM
Minimum
CFM
Specifications are subject to change without notice.
PAA-A18, 24, 30, 36, 42AA1/BA1/CA1
Total No PAA
<27 492 ft
(150 m) (150 m)
28-54 492 ft
(150 m) (104 m)
>55 492 ft
(150 m)
<27 492 ft
(150 m) (150 m)
28-54 492 ft
(150 m) (124 m)
>55 492 ft
(150 m) (117 m)
PAA- PAA-
A18AA1 A24AA1
PAA- PAA-
A18BA1 A24BA1
23.0 23.5
812 830
12.0 15.6
424 551
25
Number of PAA units connected
1 2
492 ft (N/A, above 27
Btu/h)
341 ft 276 ft
(84 m)
308 ft 243 ft
(94 m) (74 m)
492 ft (N/A, above 27
Btu/h)
408 ft 361 ft
(110 m)
384 ft 337 ft
(103 m)
IDU
PAA- PAA-
A30AA1 A36BA1
PAA- PAA-
A30BA1 A36CA1
29.0 34.0
1024 1201
19.8 22.7
700 800
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3 or more
(N/A, above
27 Btu/h)
276 ft
(84 m)
243 ft
(74 m)
(N/A, above
27 Btu/h)
337 ft
(103 m)
314 ft
(96 m)
PAA-
A42BA1
PAA-
A42CA1
47.0
1660
26.5
936