Grundig GIN 090, Installation Manual

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38 / 56 EN
Split-type room air conditioner / Installation Manual
3. Place flare nuts on both ends of pipe. Make sure they are facing in the right direction, because you
can’t put them on or change their direction after flaring. See Fig. 7.3.
Flare nut
Copper pipe
Fig. 7.3
4. Remove PVC tape from ends of pipe when ready to perform flaring work.
5. Clamp flare form on the end of the pipe. The end of the pipe must extend beyond the edge of the
flare form in accordance with the dimensions shown in the table below.
Fig. 7.4
Piping extension beyond flare form
Outer diameter of pipe (mm)
A (mm)
Min. Max.
Ø 6.35 (Ø 0.25”) 0.7 (0.0275”) 1.3 (0.05”)
Ø 9.52 ( Ø 0.375”) 1.0 (0.04”) 1.6 (0.063”)
Ø 12.7 ( Ø 0.5”) 1.0 (0.04”) 1.8 (0.07”)
Ø 16 ( Ø 0.63”) 2.0 (0.078”) 2.2 (0.086”)
7 Refrigerant piping connection