41
12.1.1.2 Remote
Controller
Signals may not be transmitted and received
correctly when the remote controller is operated
while in the holder. Take the remote controller in
your hand to operate the unit.
Mount the holder in a location that is not subject to
the effects of heat (direct sunlight and stoves,
etc.).
12.1.2 Selection of Pipe and Heat Insulation Materials
When using commercial copper pipes and fittings, observe the following:
1 Insulation material: Polyethylene foam
Heat transfer rate: 0.041 to 0.052 W/mk (0.035 to 0.045kal/mh°C)
Refrigerant gas pipe’s surface temperature reaches 110°C max.
Choose heat insulation materials that will withstand this temperature.
2 Be sure to insulate both the gas and liquid piping and to provide insulation dimension as below.
Pipe Dimension
Heat Insulation Dimension
Gas side
3/8”(O.D. 9.5mm t0.8mm)
I.D.12-15mm t10mm Min
Liquid side
1/4”(O.D. 6.4mm t0.8mm)
I.D. 8-10mm t10mm Min
3 Use separate heat insulation pipes for gas and liquid refrigerant pipes.
Required
material
o
Pipe size reducer (CZ-MA1P) for CS-Z50*** when connect to multi.
12.1.3 Installing the Indoor Unit
12.1.3.1 Exposed
Installation
12.1.3.1.1 Refrigerant
piping
1 Drill a hole (70mm in diameter) in the spot indicated by the symbol in the illustration as below.
2 The location of the hole is different depending on which side of the pipe is taken out.
3 For piping, see
12.1.4
.
Connecting the refrigerant piping
.
4 Allow space around the pipe for a easier indoor unit pipe connection.
Remote control holder fixing screws
7
Remote control holder
6
Remote
control
4
Attaching the remote control holder to the wall
45
35
Left/right side piping
350
Wall
Refrigerant pipe
70
45
Floor
45
60
70
80
g
n
i
p
i
p
m
o
t
t
o
b
t
h
g
i
R
g
n
i
p
i
p
m
o
t
t
o
b
t
f
e
L
W
all
(Unit : mm)
45
45
70
80
Left back piping
Right back piping
CAUTION
Min. allowable length
•
The suggested shortest pipe length is 3.0m, in order to avoid noise from the outdoor unit and vibration.
(Mechanical noise and vibration may occur depending on how the unit is installed and the environment in which it is used.)
•
See the installation manual for the outdoor unit for the maximum pipe length.
•
For multi-connections, see the installation manual for the multi-outdoor unit.
