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Emmeti X-Evo - XX 17X3E R32 Outdoor unit Manual

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6. EXTERNAL UNIT INSTALLATION
Connecting the pipes to the fittings
- Connect the pipes to the fittings on the unit.
-Secure by tightening the nuts to a torque of:
diameter Surface thickness
(mm)
Tightening torque
(N·m)
1/4’’ ≥ 0.5 15-30 (N·m)
3/8’’ ≥ 0.71 30-40 (N·m)
6.3.2 Insulating the pipelines
- Before carrying out the flaring of the pipe, it is essential to insulate the
pipe and then fit the nuts on the pipe (Fig. B).
Fig. B
Fig. C
Insulating
Fig. D
Flaring tool
Fig. E
Example of incorrect flarings
Use an insulating tube in vapour-proof closed-cell polyurethane foam at
least 9 mm in thickness. (Fig. C).
Wrap any uncovered areas with adhesive tape which has similar cha-
racteristics to the insulating material used for the pipeline.
6.3.3 Esecution Flaring
Carrying out the flaring properly is essential for the union to seal, it must
therefore be carried out with particular care and the appropriate flaring
tool. (Fig. D/E).
It is important to apply refrigerating oil to the mating surfaces of the
flared end and the fitting before they are joined.
This precaution prevents possible gas leakage.
Attention!
Use only synthetic oil in air conditioners which are charged with R 32
refrigerant.
Inclined profile
Cracking
Damaged
surface
Uneven
thickness
Connect earthing wire.
Earthing wire should not be con- nected to the gas pipe,
water pipe, lightning rod or phone line, incorrect earthing
may cause shock.
6.4 Electrical supply
Electrical connections have to be done by qualified personnel, by observing
the current rules in the place where the air conditioner unit has to be
installed.
Electrical connection has to be preceded by a careful control about com-
patibility between the electrical supply line and the features of the unit
you want to connect.
In the electrical supply line of the unit it is mandatory to foresee a bipolar
switch (a differential one) with a contact separation of at least 3mm in
every pole.
Attention!
Before doing any work on the units, make sure that the main electrical
supply has been disconnected.
Before interrupting the power supply by means of the switch, turn the air
conditioner off with the remote control.
Refrigerant oil
Flare-nut
Open-ended
spanner
Torque wrench
… 15 …


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