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5
1-5. Additional Materials Required for Installation
1. Refrigeration (armored) tape
2. Insulated staples or clamps for connecting wire
(See local codes.)
3. Putty
4. Refrigeration lubricant
5. Clamps or saddles to secure refrigerant tubing
2. Installation Site Selection
2-1. 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 corner 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 unre-
stricted air flow around the unit. (Fig. 2)
install the unit within the maximum elevation difference (H)
above or below the outdoor unit and within the maximum tub-
ing length (L) from the outdoor unit as detailed in Table 3 and
Fig. 3a.
install the indoor unit more than 3.3' (1 m) away from any
antenna or power lines or connecting wires used for television,
radio, telephone, security system, or intercom. Electrical noise
from any of these sources may affect operation.
Drain hose
Indoor unit
Outside drainage
Fig. 1
*3
304
*3
304
Front View
*3
304
Fig. 2
INDOOR
UNIT
Tubing length (L)
OUTDOOR
UNIT
Elevation
difference (H)
Fig. 3a
WARNING
To prevent abnormal heat genera-
tion and the possibility of fire, do
not place obstacles, enclosures
and grilles in front of or surround-
ing the air conditioner in a way
that may block air flow.
Indoor unit
Floor level
Wall
Minimum height
from floor level
5' (1.5 m)
Fig. 3b
For stable operation of the
air conditioner, do not
install wall-mounted type
indoor units less than 5'
(1.5 m) from floor level.
CAUTION
Table 3
* If total tubing length becomes 100 to 164 ft. (Max.), charge additional refr igerant (R410A) b y 0.43 oz./ft.
No additional char
g
e of compressor oil is necessar y. F or more detailed char
g
in
g
inf ormation, ref er to the T echnical & Ser vice Ma nual.
Model
16410 to 100 0.43
Charge-less Tubing
Length (Actual Length)
(ft.)
Maximum Tubing
Length (L)
(ft.)
Maximum Elevation Difference (H)
(ft.)
CS-KE30NKU
CS-KE36NKU
Required Amount
of Additional Refrigerant
(oz./ft.)*
If the outdoor unit is higher
If the outdoor unit is lower
100
50