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Table 2-2 : Values of indoor unit
Type
22
28
36
D1
–
L1
0.129
U1
0.175
Y2
0.130
K1
–
–
–
K2
0.097
T2
–
–
F2
0.154
M1
0.098
P1
0.122
R1
0.122
Z1
0.073
E1
–
–
–
E2
–
–
–
Table 2-3 : Liquid tube size-up condition of main tube (LM)
Main tube (LM)
Liquid tubing size
1-6. Tubing Size
■
Table 3 : Main Tubing Size (LA)
kW
Outdoor unit horsepower
Gas tube
Liquid tube
* If future extension is planned, select the tubing diameter based on the total horsepower
after extension.
* The refrigerant tubing should be used with R410A refrigerant.
* If the length of the longest tube (L1) exceeds 90 m (equivalent length), increase the main tubing (LM) size by 1 rank for the
gas and liquid tubes. Select from Table 3 and Table 7. Use field-supply reducers.
* If the longest main tubing length (LM) exceeds 50 m, increase the main tubing size at the portion before 50 m by 1 rank for the
gas tubes.
For the portion that exceeds 50 m, set based on the main tubing size (LA) listed in the table above.
■
Table 4 : Main Tubing Size After Distribution (LB, LC...)
Below kW
Total capacity
after distribution
Over kW
Gas tube
Tubing size
Liquid tube
Note: In case the total capacity of indoor units connected after distribution exceeds the capacity of the outdoor unit, select the main
tubing size for the capacity of the outdoor unit.
■
Table 5 : Indoor Unit Tubing Connection Size
Indoor unit type
22
Gas tube (mm)
Liquid tube (mm)
Rated Capacity
45
56
60
71/73
0.117
–
0.145
–
0.193
0.197
0.134
–
0.153
–
0.216
–
–
–
0.161
–
0.231
0.205
–
0.195 0.197
–
0.197
0.195 0.197
–
0.197
0.110
0.133
–
–
–
0.275
–
–
–
0.197
Total value of indoor unit
≤ 1.200
No need to rank up.
22.4
8 HP
ø19.05
Flare connection
Flare connection
7.1
16.0
(2.5 HP)
(6 HP)
7.1
–
(2.5 HP)
ø12.7
ø15.88
ø9.52
ø9.52
28
36
45
ø12.7
ø6.35
90
106
140
–
–
–
–
–
–
0.263
–
–
–
–
–
0.216
–
–
–
–
–
–
0.301
0.308
–
–
–
–
–
–
–
–
–
–
–
–
–
–
0.430 0.435
–
–
–
1.200 <
Need to increase by 1 rank.
Unit: mm
28.0
10 HP
ø22.22
Brazing connection
ø9.52
Unit: mm
22.5
–
(8.1 HP)
16.0
22.5
(6 HP)
(8.1 HP)
ø19.05
ø22.22
ø9.52
ø9.52
56
60
73
90
ø15.88
11
160
180
224
280
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
0.646 0.784
–
0.478
0.637
Liquid tube
106
140
160
180
ø9.52
Gas tube
224
280
ø19.05
ø22.22
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