Sanyo ECO-i AHX0752 Technical Data Manual page 20

1. Model Selecting and Capacity Calculator
Check of limit density
WARNING
1-7. Check of limit density
When installing an air conditioner in a room, it is neces-
sary to ensure that if the refrigerant gas accidentally
leaks out, its density does not exceed the limit level for
that room.
If the density could exceed the limit level, it is neces-
sary to provide an opening between the unit and the
adjacent room, or to install mechanical ventilation
which is interlocked with the leak detector.
(Total refrigerant charged amount: oz)
(Min. indoor volume where the indoor unit is installed: ft.
Limit density 0.3 (oz/ft.
1
The limit density of refrigerant which is used in this unit
3
is 0.3 oz/ft. (ISO 5149).
The shipped outdoor unit comes charged with the
amount of refrigerant fixed for each type, so add it to
the amount that is charged in the field. (For the refriger-
2
ant charge amount at shipment, refer to the unit's
nameplate.)
CAUTION
3
4
5
6
7
8
Always check the gas den-
sity limit for the room in
which the unit is installed.
3
)
Pay special attention to any
location, such as a basement,
etc., where leaking refrigerant
can accumulate, since refrig-
erant gas is heavier than air.
Design of W-3WAY ECO-i SYSTEM Unit Specifi cations
Minimum indoor volume and floor area as against the
amount of refrigerant is roughly as given in the follow-
ing table.
3
ft.
10000
9500
9000
Range below
8500
the density limit of
8000
0.3 oz/ft.
7500
(countermeasures
7000
6500
not needed)
6000
5500
5000
3
)
4500
4000
3500
3000
2500
2000
1500
1000
500
0
0 500
Total amount of refrigerant
2-10
ft.
1136
1079
1022
966
909
3
852
795
738
682
625
568
511
454
398
341
Range above
284
the density limit of
227
3
0.3 oz/ft.
170
(countermeasures
114
57
needed)
0
1000 1500 2000 2500 3000
oz
2