INS-39
DUAL, TRIPLE, POKER DC Inverter : 4. Installation
Multi Liberty
DC Inverter
3. Connection of refrigerant pipings
Please check if splitting distance (also considering the number of bends on pipings) and splitting level distance
between Indoor Units and the Outdoor Unit respect limitations indicated by the Manufacturer.
3.1 Access to refrigerant connections of HFIU (266, 356, 536) X Indoor Units
1) Slide the two switches of frontal grille toward the middle, as it is shown in Figure 3.1.1.
2) Open frontal grille to 90°, after removing the string (see Figure 3.1.2). Remove the grid from Indoor Unit, by
detaching the bottom hinges. Unscrew the 4 screws of Indoor Unit’s frontal panel (see Figure 3.1.2).
3) Lift frontal panel by about 30° (see Figure 3.1.3); now it is possible to remove it from back side of Indoor
Unit.
4) The position of Indoor Unit’s refrigerant piping connections is shown in Figure 3.1.3.
5) Concerning the part of refrigerant pipings inside Unit, the allowed position is downwards only. Outside Unit,
refrigerant pipings can be set downwards, or on the back and/or sideways of Indoor Unit.
Figure 3.1.1
Figure 3.1.2
Figure 3.1.3
Refrigerant connections
