Test Running - Electrolux EXO18HEIWE Manuel D'installation

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2. Grounding work After finishing
grounding work, measure the
grounding resistance by visual
detection and grounding resistance
tester. Make sure the grounding
resistance is less than 4.
3. Electrical leakage check (performing
during test running)
During test operation after finishing
installation, the serviceman can use the
electroprobe and multimeter to perform
the electrical leakage check. Turn off
the unit immediately if leakage happens.
Check and find out the solution ways till
the unit operate properly.
Gas leak check
1. Soap water method:
Apply a soap water or a liquid
neutral detergent on the indoor
unit connection or outdoor unit
connections by a soft brush to check
for leakage of the connecting points
of th piping. If bubbles come out, the
pipes have leakage.
2. Leak detector
Use appropriate leak detector to
check for leakage.
Fig.58
Indoor unit
check point
Outdoor unit
check point
E
A
NOTE:
The illustration is for explanation purpose
only. The actual order of A, B, C, D, E on
the machine may be slightly different from
the unit you purchased. The actual shape
shall prevail.

7.3 Test running

Perform test operation after completing
gas leak check at the flare nut connections
and electrical safety check.
• Check that all tubing and wiring have
been properly connected.
• Check that the gas and liquid side
service valves are fully open.
1. Connect the power, press the ON/
OFF button on the remote controller
to turn the unit on.
2.
Use the MODE button to select
COOL, HEAT, AUTO and FAN to
check if all the functions works well.
3. When the amient temperature is
too low (lower than 17°C), the unit
cannot becontrolled by the remote
controller to run at cooling mode,
manual operation can be taken.
Manual operation is used only when
the remote controller is disable or
maintenance necessary.
Hold the panel sides and lift the panel up
to an angle until it remains fixed with a
clicking sound.
Press the Manual control button to select
the AUTO or COOL, the unit will operate
under Forced AUTO or COOL mode (see
User Manual for details).