Daikin REYQ72/96MTJU, Руководство по установке

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EDUS39-605 Installation
Installation of Outdoor Units 36
Pay special attention to places such as a basements,
where refrigerant can stay because refrigerant is heavier
than air and precautions must be taken.
Procedure for checking maximum concen-
tration:
Check the maximum concentration level in accordance
with steps 1 to 4 below and take whatever action is nec-
essary to comply.
1. Calculate the amount of refrigerant (Ib.) charged to each
system separately.
NOTE
•
Where a single refrigerant facility is divided into 2 entirely
independent refrigerant systems, use the amount of refrig-
erant with which each separate system is charged.
•
Calculate the smallest room volume (ft
3
)
Incase like the following, calculate the volume of (A), (B) as
a single room or as the smallest room.
A. Where there are no smaller room divisions
B. Where there is a room division but there is an opening
between the rooms large enough 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.
2. 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.
3.
Excess of maximum concentration level: If the installa-
tion of a facility results in a concentration in excess of the
maximum concentration level you must revise the system.
Please consult your Daikin supplier.
amount of refriger-
ant in a single unit
system (amount of
refrigerant with
which the system
is charged before
leaving the factory)
+
additional charging
amount (amount of
refrigerant added
locally in accordance
with the length or
diameter of the refrig-
erant piping)
=
total amount
of refriger-
ant (Ib.) in
the system
total volume of refrigerant in the
refrigerant system
≤
maximum concen-
tration level (Ib./ft
3
)
size (ft
3
) of smallest room in which
there is an indoor unit installed
1
2