Installing The Indoor Unit - Panasonic CS-E9GFEW Service Manual

• 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.).
11.3.2. Selection of Pipe and Heat Insulation Materials
• When using commercial copper pipes and fittings, observe the following:
1. Insulation material:Polyethylene form
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.
Model
E9GF
E12GF
E18GF
3. Use separate heat insulation pipes for gas and liquid refrigerant pipes.

11.3.3. Installing the Indoor Unit

11.3.3.1. Exposed installation
Refrigerant piping
1. Drill a hole (70mm in diameter) in the spot indicated by the
2. The location of the hole is different depending on which side of the pipe is taken out.
3. For piping, see 5. Connecting the refrigerant piping.
4. Allow space around the pipe for a easier indoor unit pipe connection.
Caution
Min. allowable length
• The suggested shortest pipe length is 2.5m, 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.
Pipe Dimension
Gas side 3/8" (O. D. 9.5mm 10.8mm)
Liquid side 1/4" (O. D. 6.4mm 10.8mm)
Gas side 1/2" (O. D. 12.7mm 10.8mm)
Liquid side 1/4" (O. D. 6.4mm 10.8mm)
Thermal Insulation Dimension
I. D. 12.15mm t10mm Min
I. D. 8.10mm t10mm Min
I. D. 14.16mm t10mm Min
I. D. 8-10mm t10mm Min
symbol in the illustration as below.
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