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MULTI V Water IV
1. Cautions for Refrigerant Leaks
Calculate refrigerant concentration level
Calculate the volume of the room where indoor unit is installed as single room or the smallest room.
1. Without partition
2. With partition but opened which serve passage of air to adjoining room
3. With partition and without opening which serve as passage of air to adjoining room
Calculate refrigerant concentration
Total amount of refrigerant sys-
tem(kg)
Volume of smallest room where
indoor unit is installed (m
Heat Pump
Indoor unit
Indoor unit
Opening
Partition
Smallest
room
Refrigerant concentration
=
3
)
(R410A)
Outside unit
Outside unit
In the case of opening
without door , or 0.15
% or more openings
(to floor space) both
above and below door)
Outside unit
Indoor unit
In case the result of calculation
exceeds the limiting concentration,
perform the same calculations by
3
(kg/m
)
shifting to the second smallest, and
the third smallest rooms until at last
the result is below the limiting
concentration.
Special Guide
3
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