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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
Ⓐ Manifold Gauge
Ⓑ Low pressure side Handle
Ⓒ High pressure side Handle
!
WARNING
• Pipe to be vacuumed : gas pipe, liquid pipe
• If the refrigerant amount is not exact, it may not operate
properly.
• If additionally bottled refrigerant amount is over 10%, condenser
burst or insufficient indoor unit performance may be caused.
!
Volume of the room at which Indoor Unit of
the least capacity is installed
Total amount of refrigerant in the system
≤0.44kg/m
3
(0.028lbs/ft
3
)
1st
1st
1st
Main pipe
Distribution
2nd
2nd
3rd
3nd
Main pipe
Distribution
1st
3rd
3rd main pipe distribution
2nd
Horizontal Distribution
- Ensure that the branch pipes are attached vertically.
Header
Vertical Distribution
The others
Distribution Method
Refrigerant charging
Liquid pipe
Gas pipe
1,MFL67798024,영영 18. 7. 19. 영영 2:14 Page 15
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