Mitsubishi Electric CITY MULTI PMFY-P06NBMU-E Manual De Instalación página 6

3. Installing the refrigerant piping
Fig. 3-4
6
·
Gas piping
Liquid piping
Band (long)
Pipe cover
Turn the seam upward.
Press the pipe cover against
the sheet metal.
Refrigerant piping heat insulating
material
Wrap tightly
Cut off excess length of band.
3.3. Refrigerant piping
1) Indoor unit
Installing procedures (Fig. 3-4)
1. Remove the fl are nuts and caps from the indoor unit.
2. Flare-cut the liquid and gas pipes then apply refrigerating machine oil (to be lo-
cally procured) over the fl are-cut seat surface.
3. Quickly connect the refrigerant piping.
* Remember to tighten the fl are nuts with a double spanner.
4. Slide the supplied pipe cover over the gas piping until it is pressed against the
3
sheet metal inside the unit.
5. Slide the provided pipe cover over the liquid piping until it is pressed against
3
the sheet metal inside the unit.
6. Tighten the pipe cover at the both ends 5/8 - 13/16 in. (15 - 20 mm) with the
3
supplied bands 4.