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11. Installation
7 Adjust the unit to the appropriate position, taking
into account the installation area for the front panel.
• Place the pattern sheet on the indoor unit.
• Adjust the space between the ceiling and the
indoor unit by using a dimension gauge.
• Fix the indoor unit securely after adjusting the
level of the unit by using a leveller.
• Remove the pattern sheet and install the front
panel.
Slim 1way cassette (Small, Wind-Free)
Indoor unit
Indoor unit
Indoor unit
Slim 1way cassette (Medium, Wind-Free)
Slim 1way cassette (Large, Wind-Free)
Air outlet side
Jig
6.0
8.0
Ceiling
Air inlet side
Air outlet side Air inlet side
Air outlet side Air inlet side
Jig
10
10
Ceiling
Jig
10
10
Ceiling
Step 2 Performing the gas leak test
To identify potential gas leaks on the indoor unit,
inspect the connection area of each refrigerant pipe
using a leak detector for R-410A.
Before recreating the vacuum and recirculating the
refrigerant gas, pressurize the whole system with
nitrogen (using a cylinder with a pressure reducer) at a
pressure above 4.1 MPa in order to immediately detect
leaks on the refrigerant fittings.
Made vacuum for 15 minutes and pressurizing system
with nitrogen.
Liquid side
Gas side
Insulator
Step 3 Insulating the refrigerant pipes
Once you have checked that there are no leaks in the
system, you can insulate the piping and hose.
1 To avoid condensation problems, place Acrylonitrile
Butadien Rubber separately around each refrigerant
pipe.
No gap
NBR (T13.0 or thicker)
NOTE
• Always make the seam of pipes face upwards.
2 Wind insulating tape around the pipes and drain
hose avoiding compressing the insulation too much.
3 Finish wrapping insulating tape around the rest of
the pipes leading to the outdoor unit.
4 The pipes and electrical cables connecting the indoor
unit with the outdoor unit must be fixed to the wall
with suitable ducts.
Insulation cover pipe
Insulation pipe
Be sure to overlap the insulation.
Indoor unit
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