Installation Instructions

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.
 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.
 allow room for operation and maintenance as well as unre-
stricted air flow around the unit. (Fig. 1)
 install the unit within the maximum elevation difference (H)
above or below the outdoor unit and within a total tubing length
(L) from the outdoor unit as detailed in Table 3 and Fig. 2.
 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.
Fig. 1
3.3 ft.
(1m)
(1m)
(1m)
3.3 ft.
(1m)
3.3 ft.
3.3 ft.
3.3 ft.
(1m)
Fig. 2
Tubing length (L)
Elevation difference (H)
Outdoor unit
Indoor unit
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.
CAUTION
Air delivery will be degraded if the distance
from the floor to the ceiling is greater than
10 ft. (3 m).
* If total tubing length becomes 25 to 65 ft. (Max.) or 25 to 100 ft. (Max.), charge additional refrigerant (R410A) by 0.16 or 0.27 oz./ft.
No additional charge of compressor oil is necessary. For more detailed charging information, refer to the Technical & Service Manual.
Max. Allowable Tubing Limit of Tubing Limit of Elevation Required Amount of
Model Length at Shipment Length (L) Difference (H) Additional Refrigerant
(ft.) (ft.) (ft.) (oz./ft.)*
CS-KS12NB41 25 65 23 0.16
CS-KS18NB4UW 25 100 50 0.27
Table 3