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Idiomas disponibles
Idiomas disponibles
Table 2-2 Distribution
Type
Indoor
unit
Equivalent HP
Suction tube
Tubing
Discharge tube
size
Liquid tube
Table 2-3 Solenoid valve kit
Type
Indoor
unit
Equivalent HP
Gas tube
Tubing
size
Liquid tube
(*1) Solenoid valve kits (option) and indoor units should be joined by fl are connection. Please refer to the op-
eration manuals.
(7) Check the room limit concentration.
With a multi-type system, the total length of refrigerant tubing is longer, and the almost of additional refrigerant
charge is more. For this reason, there is danger that refrigerant leaking into a small room may cause persons in
the room to be asphyxiated. The room limit concentration is determined as follows according to the "Installation
Standards for Refrigeration and Air Conditioning Equipment (KHK-S0010)" - voluntary standards created by the
High Pressure Gas Safety Institute of Japan.
Total amount of refrigerant charge (kg) for the system
Smallest room volume (m
No special measures are required if the concentration is at or below the limit concentration of 0.3 kg/m
However, special measures are required if the concentration is above 0.3 kg/m
Solenoid valve kit connection tubing (3-tube line)
22
28
36
45
0.8
1
1.3
1.6
Indoor unit connection tubing (2-tube line)
22
28
36
45
0.8
1
1.3
1.6
φ12.7
(*1)
3
) where an indoor unit is installed
GB - 27
56
71
80
90
2
2.5
3
3.2
φ15.88
φ12.7
φ9.52
56
71
80
90
2
2.5
3
3.2
φ12.7
φ15.88
φ9.52
≤ Limit concentration 0.3 kg/m
3
.
112
140
160
4
5
6
112
140
160
4
5
6
3
3
.
Capítulos
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