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13.3. Procedure for checking maximum
concentration
Check the maximum concentration level in accordance with steps 1
to 4 below and take whatever action is necessary to comply.
1
Calculate the amount of refrigerant (kg) charged to each system
separately.
+
amount of refrigerant
in a single unit
system (amount of
refrigerant with
which the system is
charged before
leaving the factory)
NOTE
Where a single refrigerant facility is divided into
2 entirely independent refrigerant systems, use
the amount of refrigerant with which each
separate system is charged.
2
Calculate the smallest room volume (m
In a case such as the following, calculate the volume of (A), (B)
as a single room or as the smallest room.
For Sky Air or room air conditioner indoor units only:
A.
Where there are no smaller room divisions
1
BP unit
B.
Where there is a room division but there is an
opening between the rooms sufficiently large to
permit a free flow of air back and forth.
1
opening between rooms
2
partition
(Where there is an opening without a door or where there
are openings above and below the door which are each
equivalent in size to 0.15% or more of the floor area.)
3
BP unit
RXYSQ6TAV1B
VRV IV-S System air conditioner
4P482260-1 – 2017.03
=
additional charging
total amount of
amount (amount of
refrigerant (kg)
refrigerant added
in the system
locally in accordance
with the length or
diameter of the
refrigerant piping)
3
)
1
3
1
2
For VRV indoor units only:
A.
Where there are no smaller room divisions
B.
Where there is a room division but there is an
opening between the rooms sufficiently large to
permit a free flow of air back and forth.
1
opening between rooms
2
partition
(Where there is an opening without a door or where there
are openings above and below the door which are each
equivalent in size to 0.15% or more of the floor area.)
3
Calculating the refrigerant density using the results of the
calculations in steps 1 and 2 above.
total volume of
refrigerant in the
refrigerant system
3
size (m
) of smallest
room in which there is
an indoor unit installed
If the result of the above calculation exceeds the maximum
concentration level then make similar calculations for the second
then third smallest room and so until the result falls short of the
maximum concentration.
4
Dealing with the situations where the result exceeds the
maximum concentration level.
Where the installation of a facility results in a concentration in
excess of the maximum concentration level then it will be
necessary to revise the system.
Please consult your supplier.
14. D
ISPOSAL REQUIREMENTS
Dismantling of the unit, treatment of the refrigerant, of oil and of other
parts must be done in accordance with relevant local and national
legislation.
1
2
≤
maximum concentration level (kg/m
Installation manual
3
)
25
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