Air Conditioner Service Manual
36
Insert the pipe connection into the relative slot.
Press to join the pipe connection to the base.
2.6 ODU Installation
●
The outdoor unit should be installed on a solid wall
and fastened securely.
●
The following procedure must be observed before
connecting the pipes and connecting cables :
decide which is the best position on the wall and
leave enough space to be able to carry out
maintenance easily.
●
Fasten the support to the wall using screw anchors
which are particularly suited to the type of wall;
●
Use a larger quantity of screw anchors than
normally required for the weight they have to bear
to avoid vibration during operation and remain
fastened in the same position for years without the
screws becoming loose.
●
The unit must be installed following the national
regulations.
Outdoor unit condensed water drainage
(only for heat pump models)
The condensed water and the ice formed in the outdoor
unit during heating operation can be drained away
through the drain pipe.
1) Fasten the drain port in the 25mm hole placed in the
part of the unit as shown in the picture.
2) Connect the drain port and the drain pipe.
Pay attention that water is drained in a suitable
place.
Electronic connections
1. Take the cover away.
2. Connect the cable wires to the terminal board using
the same numbering as in the indoor unit.
3. For the electrical connections, see the wiring
diagram on the back of the cover
4. Fasten the cables with a cable-clamp.
5. An efficient earth connection must be ensured.
6. Replace the covers.
Wiring diagram on the back of the cover
Screw
Remove the upper cover
Outdoor unit
Connecting the pipe
Screw the flare nuts to the outdoor unit coupling with
the same tightening procedures described for the
indoor unit.
Note: If the tightening torque is not sufficient, there will
probably be some leakage. With excessive tightening
torque there will also be some leakage, as the flange
Capacity
(Btu/h)
Pipe Size (Torque)
Gas
Liquid
7/9/12K
3/8" (4.2kg.m)
1/4" (1.8kg.m)
18K
1/2" (5.5kg.m)
1/4" (1.8kg.m)
24K
5/8" (6.6kg.m)
3/8" (4.2kg.m)
YES
NO
NO
