9. INSTALLATION INSTRUCTIONS
To prevent abnormal heat gen-
eration and the possibility of
fire, don’t place obstacles,
enclosures and grills in front of
or surrounding the air condi-
tioner in a way that may block
air flow.
AVOID:
●
direct sunlight.
●
nearby heat sources that may affect performance of
the unit.
●
areas where leakage of flammable gas may be expect-
ed.
●
places where large amounts of oil mist exist.
DO:
●
select an appropriate position from which every corner
of the room can be uniformly air-conditioned. (High on
a wall is best)
●
select a location that will hold the weight of the unit.
●
select a location where tubing and drain pipe have the
shortest run to the outside.
●
allow room for operation and maintenance as well as
unrestricted air flow around the unit. (Fig. 2a)
Indoor Unit
Fig. 2b
9-1. Installation Site Selection
Maximum Allowable Tubing Length(L)and Elevation
Difference(H).
The Multi-Split System outdoor unit should be installed as
close to the indoor units as possible. Maximum allowable
length of the refrigerant tubing and elevation difference
between outdoor and indoor units are shown in Table 1.
Table 1
Combination Max allowable Limit of Limit of elevation Required amount
tubing length tubing length(L). difference(H). of additional
Outdoor unit Indoor unit at shipment.(m) (m) (m) refrigerant*(g/m)
MC1827
KM97
7.5 15 7 15
KM97
*
If total tubing length becomes 7.5 to 15 m (max.),charge additional refrigerant (R22) by 15 g/m.
No additional charge of compressor oil is necessary.
17
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