Air Purging - Electrolux EXO18HEIWE Manuel D'installation

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After the confirmation of the above
conditions, prepare the wiring as follows:
1. Never fail to have an individual
power circuit specifically for the
air conditioner. As for the method
of wiring, be guided by the circuit
diagram posted on the inside of
control cover.
2. The screw which fasten the wiring
in the casing of electrical fittings are
liable to come loose from vibrations to
which the unit is subjected during the
course of transportation. Check them
and make sure that they are all tightly
fastened. (If they are loose, it could
cause burn-out of the wires.)
CAUTION
Screws must be tightly fasten.

7. AIR PURGING

Air and moisture in the refrigerant system
have undesirable effects as indicated
below:
• Pressure in the system rises.
• Operating current rises.
• Cooling or heating efficiency drops.
• Moisture in the refrigerant circuit may
freeze and block capillary tubing.
• Water may lead to corrosion of parts in
the refrigeration system.
Therefore, the indoor unit and tubing
between the indoor and outdoor unit must
be leak tested and evacuated to remove
any noncondensables and moisture from
the system.
7.1 Air purging with vacuum
pump
Preparation:
Check that each tube(both liquid and
gas side tubes) between the indoor
and outdoor units have been properly
3. Specification of power source.
4. Confirm that electrical capacity is
sufficient.
5. See to that the starting voltage
ismaintained at more than 90 percent
of the rated voltage marked on the
name plate.
6.
Confirm that the cable thickness is
as specified in the power source
specification.
7. Always install an earth leakage circuit
breaker in a wet or moist area.
8.
The means for disconnection from a
power supply shall be incorporated in
the fixed wiring and have an air gap
contact separation of at least 3mm in
each active(phase) conductors.
9. Before obtaining access to
terminals, all supply circuits must be
disconnected.
connected and all wiring for the test run
has been completed. Remove the service
valve caps from both the gas and the
liquid side on the outdoor unit. Note that
both the liquid and the gas side service
valves on the outdoor unit are kept closed
at this stage.
• When the connecting pipe length is
longer than 5m, additional refrigerant
should be added into the unit
accordingly to the table below:
Liquid Additional amount of
side refrigerant to be
charged
Ø 6.35mm R410A:
(Total pipe length - 5xN)
x15g/m, N=2,3,4or 5.
Ø 9.52mm R410A:
(Total pipe length - 5xN)
x30g/m, N=2,3,4or 5.
• When relocate the unit to another
place, perform evacuation using
vacuum pump.