Panasonic CS-E12NKEW, Service Manual, Page: 60 / 189

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11. Installation Instruction
11.1 Select the Best Location
11.1.1 Indoor Unit
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Do not install the unit in excessive oil fume area
such as kitchen, workshop and etc.
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There should not be any heat source or steam
near the unit.
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There should not be any obstacles blocking the air
circulation.
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A place where air circulation in the room is good.
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A place where drainage can be easily done.
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A place where noise prevention is taken into
consideration.
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Do not install the unit near the door way.
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Ensure the spaces indicated by arrows from the
wall, ceiling, fence or other obstacles.
š
Recommended installation height for indoor unit
shall be at least 2.5 m.
11.1.2 Outdoor Unit
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If an awning is built over the unit to prevent direct
sunlight or rain, be careful that heat radiation from
the condenser is not obstructed.
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There should not be any animal or plant which
could be affected by hot air discharged.
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Keep the spaces indicated by arrows from wall,
ceiling, fence or other obstacles.
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Do not place any obstacles which may cause a
short circuit of the discharged air.
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If piping length is over the [piping length for
additional gas], additional refrigerant should be
added as shown in the table.
Piping size
Model
Horse
Power
(HP)
Gas Liquid
Std.
Leng-
th
(m)
Max.
Eleva-
tion
(m)
Min.
Piping
Length
(m)
Max.
Piping
Length
(m)
Addi-
tional
Refri-
gerant
(g/m)
Pi-
ping
Leng-
th for
add.
gas
(m)
E7***,
XE7***
3/4HP 15 15 20 7.5
E9***,
XE9***
1.0HP 15 15 20 7.5
E12***,
XE12***
1.5HP
9.52mm
(3/8”)
15 15 20 7.5
E15***,
XE15***
1.75HP 15 15 20 7.5
E18***,
XE18***
2.0HP 15 20 20 7.5
E21***,
XE21***
2.25HP
12.7mm
(1/2”)
15 20 20 7.5
E24*** 2.5HP 20 30 30 10
E28*** 3.0HP
15.88mm
(5/8”)
6.35mm
(1/4")
5
20
3
30 30 10
Example: For E9***
If the unit is installed at 10 m distance, the quantity of
additional refrigerant should be 50 g .... (10-7.5) m x
20 g/m = 50 g
11.1.3 Indoor/Outdoor Unit Installation
Diagram