Klarstein 10031434 Mode D'emploi page 49

Caution on Piping Handling
• Protect the open end of the pipe against dust and
moisture.
• All pipe bends should be as gentle as possible.
Use a pipe bender for bending. (Bending radius
should be 30 to 40mm or larger.)
Selection of copper and heat insulation materials
When using commercial copper pipes and fittings,
observe the following:
• Insulation material: Polyethylene foam
• Heat transfer rate: 0.041 to 0.052W/mK(0.035
to 0.045kca/mh
• Refrigerant gas pipe' s surface temperature
reaches max. 110°C. Choose heat insulation ma-
terials that will withstand this temperature.
Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below.
Gas side
9K/12K
9.5 mm
Thickness 0.8 mm
Use separate thermal insulation pipes for gas and liquid refrigerant pipes.
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Liquid side
18K
12.7 mm 6.4mm
Be sure to
place a cap
If no flare cap is
available,cover the
flare mouth with
tape to keep dirt or
water out.
Inter-unit wiring
Gas pipe
Gas pipe
insulstion
Finising tape
Gas pipe insulation
9K/12K 18K
12-15 mm 14-16 mm
Thickness 10 mm Min.
Liquid pipe
Liquid pipe
insulation
Liquid pipe
insulation
8-10 mm