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7. INSTALLATION INSTRUCTIONS
7-1. Installation Site Selection
7-1-1. Indoor Unit
AVOID:
●
direct sunlight.
●
nearby heat sources that may affect performance of
the unit.
●
areas where leakage of flammable gas may be
expected.
●
places where large amounts of oil mist exist.
DO:
●
select an appropriate position from which every cor-
ner of the room can be uniformly cooled. (High on a
wall is best.)
●
select a location that will hold the weight of the unit.
●
select a location where tubing and drain hose have
the shortest run to the outside. (Fig. 1)
●
allow room for operation and maintenance as well as
unrestricted air flow around the unit. (Fig. 2)
●
install the unit within the maximum elevation differ-
ence (H) above or below the outdoor unit and within
a total tubing length (L) from the outdoor unit as
detailed in Table 1 and Fig. 3.
Table 1
To prevent abnormal heat
generation and the possibility
of fire, do not place obstacles,
enclosures and grilles in front
of or surrounding the air con-
ditioner in a way that may
block air flow.
Fig. 3
For stable operation of
the air conditioner, do not
install wall-mounted type
indoor units under 1.5 m
from floor level.
Max. Allowable Tubing Limit of Tubing Limit of Elevation Required Amount of
Model Length at Shipment Length (L) Difference (H) Additional Refrigerant
(m) (m) (m) (g/m)
*
KRV91 7.5 15 7 15
*
If total tubing length becomes 7.5 to 15 m (max.), charge additional refrigerant (R410A) by 15 g/m.
No additional compressor oil is necessary.
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