Choice Of Position For Wall Split Unit; Installation Of Fastening Plate; Drilling Pipe Passage Holes; Installation Of Unit - Olimpia splendid Unico Twin Instructions For Installation, Use And Maintenance Manual

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2.2.2

Choice of position for WALL SPLIT unit

The position for installation of the inside unit, to obtain the best performance and prevent breakdowns or hazards, must have the
following requisites:
- The wall on which the inside unit is installed must be sturdy and able to withstand its weight.
- It must be possible to leave room around the unit for any maintenance operations that may be necessary.
- There should be no obstacles to the free circulation of air on the intake side and, especially, on the air outlet side; on this
side, in particular, there should be no obstacles closer than 2 m. This could cause turbulence that would interfere with correct
operation of the unit.
- If possible, it should be installed on an external wall so as to convey the condensation drain outside.
- If possible, it should be installed on an external wall so as to convey the condensation drain outside.
- It should not be installed in a position where the air flow can strike the people underneath directly (fig. 26).
- It should not be directly over another appliance (television set, radio, refrigerator, etc.), or over a source of heat (fig. 27).
- There should be no obstacles for reception of signals emitted by the remote control (fig. 27).
2.2.3

Installation of fastening plate

After ascertaining the conditions described in par. 2.2.2, proceed to install the fastening plate, taking into consideration the dimen-
sions shown in figure 28.
- The plate should be fastened to the wall in the position selected by means of four screw anchors (supplied) (fig. 28).
Other types of screw anchors can be used (with a diameter of 8 mm) as long as the fastening screws are flathead type.
When fastening to a wall in wood, use suitable 5.5 mm screws, also flathead type.
- Drill the holes and fasten the plate without tightening the screws all the way.
- Position the plate accurately with a bubble level (fig. 29).
- Tighten the four fastening screws.
- Check the stability of the plate by trying to move it sideways, upward and downward (fig. 29).
2.2.4

Drilling pipe passage holes

If the service lines for connection come from the right rear side of the inside unit it will be necessary to drill a hole in the wall for
passage of the pipes.
- Drill the hole at the centre of the site of installation using an 8-10 mm bit and tilting it downward towards the outside by 5% (to
facilitate the flow of condensation) (fig. 30). Finish the hole with a 60 mm auger.
- Insert the drain line and the cooling fluid line in the hole, as well as the cable for electric connection.
If the service lines for connection come from the left rear side of the inside unit it will be necessary to drill a hole ø 60 in the wall
for the cooling pipes.
2.2.5

Installation of unit

- Hook the unit to the top of the plate so that the bottom is free and can be raised.
- Make sure the cable is disconnected from the power mains.
- Insert a shim between the unit and the fastening plate so as to create a space between them and fasten the two cooling pipes
and the condensation drain pipe.
Make the pipe connections as described in par. 2.2.7.
- Pull the unit downward and sideways to make sure it is perfectly fastened and check the level. It should tilt towards the
condensation drain outlet by about 2 mm (fig. 31).
2.2.6

Connecting the indoor unit condensation discharge line

Connect the condensation drain pipe on the inside unit to a drain pipe of appropriate length and fasten with a hose clamp.
Run the pipe inside the raceway parallel to the other system pipes and fastening it to them with hose clamps, not too tight so as
not to damage the insulation on the pipes or kink the drain pipe.
The condensation liquid should drain directly into a rainwater runoff gutter if possible.
If the drain pipe discharges directly into the sewer system, it should be bent so as to create a trap (fig. 30), thus preventing
any return of odour into the house.
The trap bend should never be less than 1.5 m below the bottom of the appliance (fig. 30).
If the drainage is discharged into a container (fig. 32), this should never be closed, so as to prevent any counterpressure
that would interfere with discharge, and the pipe should never reach the level of the fluid in the container.
IMPORTANT: check that the condensation liquid flows properly out of the pipe by pouring about 1/2 litre of water very
slowly into the collection tank on the inside unit (fig. 32).
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