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2. When there is an effective opening with the adjacent room for ventilation of leaking refrigerant gas (opening without a door, or an
opening 0.15 % or larger than the respective floor spaces at the top or bottom of the door).
3. If an indoor unit is installed in each partitioned room and the refrigerant piping is interconnected, the smallest room of course
becomes the object. But when a mechanical ventilation is installed interlocked with a gas leakage detector in the smallest room
where the density limit is exceeded, the volume of the next smallest room becomes the object.
▼ NOTE 3
The minimum indoor floor area compared with the amount of refrigerant is roughly as follows: (When the ceiling is 2.7 m high)
IMPORTANT
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