ERX125~250A7W1B
Inverter condensing unit
4PW30064-1D
Installation manual
19
2
Calculate the smallest room volume (m
3
)
In a case such as the following, calculate the volume of (A), (B)
as a single room or as the smallest room.
3
Calculating the refrigerant density using the results of the
calculations in steps 1 and 2 above.
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.
15. 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.
N
OTES
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.)
total volume of
refrigerant in the
refrigerant system
size (m
3
) of smallest
room in which there is
an air handling unit
installed
≤
maximum concentration level (kg/m
3
)
1
2
