E/0204/39/49
H
max.
= 3 m
H
max.
= 3 m
1. Refrigerant lines must be made of hard or soft copper. In case of R407c, diameter of pipes
must be those indicated in Table 1.
2. Routing must be over the shortest routes.
3. Limit the number of pre-shaped bends; if this is not possible every bend must have a radius of
at least 100 mm.
4. The gas line must be insulated.
5. The liquid line must be kept far from heat sources; if this is not possible, it has to be insulated.
6. If the condensing unit is placed above the evaporating unit, the last segment of the intake pipe
(insulated pipe) must lean towards the condensing unit.
If, on the other hand, the condensing unit is placed under the conditioner, it is advisable to
create a trap on the intake pipe.
7. Maximum distance* allowed between evaporating unit and motor-condensing unit is 30 m.
maximum height difference covered by connecting pipes must not exceed 3 m (either if
condensing unit is over or under evaporating unit). See drawing below.
