Fujitsu AIRSTAGE J-IIIL Design & Technical Manual page 540

¢ Limitation
Allowable pipe length (Actual pipe length)
Total pipe length
Between outdoor unit and the farthest indoor unit
Between the first separation tube and farthest indoor unit
(The farthest indoor unit to the farthest separation tube) - (The
nearest indoor unit to the first separation tube)
Between outdoor unit and nearest indoor unit
Between outdoor unit and the first separation tube
Allowable height difference
Between outdoor
unit and indoor unit
Between indoor unit
*1: Total pipe length is limited by the condition that total refrigerant amount should not exceed the
following value.
• 6/8 ton: 44.1 lb (20.0 kg), 10 ton: 56.4 lb (25.6 kg)
*2: O.T.: Outdoor temperature
*3: 6/8 ton only (For operation range of outdoor unit, refer to
DOOR UNITS on page 03-18.)
2-2. Piping limitation
a
c
The nearest indoor unit to the first separation tube.
The farthest indoor unit to the first separation tube.
Limitation
Outdoor unit is higher than indoor unit
O.T.*
Outdoor unit is lower
than indoor unit
O.T.*
Outdoor unit is higher than indoor unit
Outdoor unit is lower than indoor unit
b
1,312 ft (400 m) or
393 ft (120 m) or
295 ft (90 m) or less
196 ft (60 m) or less
17 ft (5 m) or more
10 ft (3 m) or more
164 ft (50 m) or less
2
131 ft (40 m) or less
≥ 23°F (-5°C)
2 3
16 ft (5 m) or less
< 23°F (-5°C)*
164 ft (50 m) or less
131 ft (40 m) or less
"Operation range"
- (06-18) -
H
H
Diagram
Total
1
less*
a + b
less
b
b - c
a + c
a
H1
H2
in Chapter 3. OUT-
2. Piping design