Sanyo CHX03652 - Manual (Page 24)

2-16
Design of Mini ECO-i SYSTEM
1
2
3
4
5
6
7
8
Minimum indoor volume & floor area as against
the amount of refrigerant is roughly as given in the
following table.
57
114
170
227
284
341
398
454
511
568
625
682
738
795
852
909
966
1022
1079
1136
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
9000
9500
10000
1000 500 1500 2000 2500 3000
Total amount of refrigerant
Min.
indoor v
o
lume
Min.
indoor floor area
(when the ceiling is 8.8 ft.
high)
ft. 3 ft. 2
oz
Range above
the density limit of
0.3 oz/ft.
3
(countermeasures
needed)
Range below
the density limit of
0.3 oz/ft.
3
(countermeasures
not needed)
0 0
CAUTION
Pay special attention to any
location, such as a base-
ment, etc., where leaking
refrigerant can accumulate,
since refrigerant gas is
heavier than air.
Table 2-11 Ranges that Apply to Refrigerant Tubing Lengths and to Differences in Installation Heights
Items Marks Contents Length (ft.)
L1 Max. tubing length
Actual length 492
Equivalent length 574
L (L2 – L3)
Difference between max. length and min.
131
length from the No.1 distribution joint
1
,
2
...
n
Max. length of each distribution tube 98
1
+
2
+...
n-1
Total max. tubing length including length of
656
each distribution tube (only narrow tubing)
H1
When outdoor unit is installed higher than indoor unit 164
When outdoor unit is installed lower than indoor unit 131
H2 Max. difference between indoor units 49
L = Length, H = Height
Allowable tubing
length
>
>
Allowable elevation
difference
>
>
>
>
>
>
+L1
WARNING
Always check the gas den-
sity limit for the room in
which the unit is installed.
2-10. Check of Limit Density
When installing an air conditioner in a room, it is
necessary to ensure that even 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
necessary 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. 3 )
≤ Limit density 0.3 (oz/ft. 3 )
The limit density of refrigerant which is used in this
unit is 0.3 oz/ft.
3 (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
refrigerant charge amount at shipment, refer to the
unit’s nameplate.)
2. System Design