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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.
●
Install the indoor unit more than 1 meter away from any
antenna or power lines or connecting wires used for
television, radio, telephone, security system, or inter-
com. Electrical noise from any of these sources may
affect operation.
Table 1
5 cm
min.
5 cm
min.
15 cm min.
Front View
Fig. 1
INDOOR
UNIT
Tubing length (L)
OUTDOOR
UNIT
Elevation
difference (H)
Fig. 2
WARNING
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.
Indoor unit
Floor level
Wall
Minimum height
from floor level
1.5 m
Fig. 3
For stable operation of
the air conditioner, do not
install wall-mounted type
indoor units less than
1.5 m from floor level.
CAUTION
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)
*
KRV93 / 123
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.
