5. CAPACITIES AND SELECTION DATA
Indoor unit
Pipe length L
Height difference H
Outdoor unit
The correction factor is based on the equivalent piping length in meters (EL) and the height
between outdoor and indoor units in meters (H).
H:
Height between indoor unit and outdoor unit (m).
• H>0: Position of outdoor unit is higher than position of indoor unit (m).
• H<0: Position of outdoor unit is lower than position of indoor unit (m).
L:
Actual one-way piping length between indoor unit and outdoor unit (m).
EL:
Equivalent one-way piping length between indoor unit and outdoor unit (m).
Gas Diameter
(mm/inch)
9.52 (3/8')
12.7 (1/2')
15.88 (5/8')
19.05 (3/4')
90° Elbow
0.15
0.2
0.25
0.35
Cooling
5.2 Piping length correction factor
Heating
Model
10
15
20
25
30
40
45
50
60
70
80
12K/14K/18K
1.00
0.96
0.92
0.88
0.85
--
--
--
--
--
--
21K/24K
1.00
1.00
0.98
0.96
0.94
0.92
0.90
--
--
--
--
27K/36K
1.00
1.00
1.00
0.98
0.95
0.93
0.90
0.88
0.85
--
--
42K
1.00
1.00
1.00
1.00
0.98
0.94
0.93
0.90
0.85
0.75
0.72
Model
10
15
20
25
30
40
45
50
60
70
80
12K/14K/18K
1.00
0.96
0.92
0.88
0.85
--
--
--
--
--
--
21K/24K
1.00
1.00
0.98
0.95
0.92
0.88
0.85
--
--
--
--
27K/36K
1.00
1.00
1.00
0.98
0.95
0.92
0.88
0.86
0.84
--
--
42K
1.00
1.00
1.00
1.00
0.97
0.93
0.90
0.88
0.83
0.73
0.68
EL
EL
20
Summary of Contents for 2AMW-42U4RRA
Page 10: ...1 GENERAL Type Capacity Btu h View 1 to 5 indoor units 42K 6 ...
Page 15: ...3 OUTLINES AND DIMENSIONS 21K AMW3 24U4RFA Unit mm 11 ...
Page 16: ...3 OUTLINES AND DIMENSIONS AMW3 24U4RAA Unit mm 414 380 12 ...
Page 17: ...3 OUTLINES AND DIMENSIONS 27K Unit mm 414 380 13 ...
Page 18: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON NS S Unit mm 42K 14 ...
Page 29: ...7 REFRIGERANT CYCLE 7 Refrigerant cycle 12K 14K 18K 21K 24K 25 ...
Page 32: ...8 WIRING DIAGRAM Electric wiring diagram 1982504 D 21K AMW3 24U4RFA 28 ...
Page 33: ...8 WIRING DIAGRAM AMW3 24U4RAA Electric wiring diagram 1957327 B 29 ...
Page 34: ...8 WIRING DIAGRAM 27K 36K 30 ...