Sanyo SPW-C0705DZH8 - Check of Limit Density; Total Amount of Refrigerant

WARNING
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-
ant charge amount at shipment, refer to the unit’s
nameplate.)
40.5
54.0
20 30 40 50 60 70 80 kg
67.5
81.0
94.5
108.0
121.5
135.0
148.5
162.0
175.5
189.0
202.5
216.0
229.5
243.0
256.5
270.0
m
2
m
3
Total amount of refrigerant
Min. indoor volume
Range below the
density limit of
0.3 kg/m
3
(Countermeasures
not needed)
Range above the
density limit of
0.3 kg/m
3
(Countermeasures
needed)
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
CAUTION
Check of limit density
Always check the gas den-
sity limit for the room in
which the unit is installed.
Minimum indoor volume and floor area as against the
amount of refrigerant is roughly as given in the follow-
ing table.
1-4. Check of Limit Density
When installing an air conditioner in a room, it is neces-
sary to ensure that even if the refrigerant gas accident-
ally 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 charge amount : kg )
( Minimum Indoor volume where indoor unit is installed : m
3
)
Limit density 0.3 (kg/m
3
)
The limit density of refrigerant which is used in this unit
is 0.3 kg/m
3
(ISO 5149).
Pay special attention to any
location, such as a basement,
etc., where leaking refrigerant
can accumulate, since refrig-
erant gas is heavier than air.
Min. indoor floor area (when the ceiling is 2.7 m high)
40
35
30
25
20
15
10
5
0
10 20 30
m
2
kg
Range above
the density limit
of 0.3 kg/m
3
(countermeasures
needed)
Range below
the density limit
of 0.3 kg/m
3
(countermeasures
not needed)
Min. indoor floor space
Total amount of refrigerant
XM, US Types
2-10
Design of 3-WAY ECO-i SYSTEM
1
2
3
4
5
6
7
8
1. Model Selecting and Capacity Calculator
TD831143-00W-3WAY.indb10TD831143-00W-3WAY.indb10 2008/12/0116:15:422008/12/0116:15:42