15
ENGLISH
WARNING
• Regulation for refrigerant leakage
: the amount of refrigerant leakage should satisfy the following
equation for human safety.
If the above equation can not be satisfied, then follow the follow-
ing steps.
• Selection of air conditioning system: select one of the next
- Installation of effective opening part
- Reconfirmation of Outdoor Unit capacity and piping length
- Reduction of the amount of refrigerant
- Installation of 2 or more security device (alarm for gas leakage)
• Change Indoor Unit type
: installation position should be over 2m from the floor (Wall
mounted type
→
Cassette type)
• Adoption of ventilation system
: choose ordinary ventilation system or building ventilation sys-
tem
• Limitation in piping work
: Prepare for earthquake and thermal stress
!
Volume of the room at which Indoor Unit of
the least capacity is installed
Total amount of refrigerant in the system
≤
0.44 (kg / m
3
)
CAUTION
If a negative result is obtained from the calculation, no refrigerant
needs to be added.
!
WARNING
Refer to model information since the CF Value of correction factor
differs depending on model.
!
- Ensure that the branch pipes are attached vertically.
Header
1st
1st
1st
Main pipe
Distribution
2nd
2nd
3rd
3nd
Main pipe
Distribution
1st
3rd
3rd main pipe distribution
2nd
Line Distribution
Vertical Distribution
The others
Distribution Method
Summary of Contents for ARUN40GS2A
Page 35: ......
