Evacuating The Cooling System Of The S37Xx Models - Qlima SC 37 Serie Manuel D'installation

G
TAKE CARE
For models with a capacity < 4.5 kW plug the plug into a wall socket.
For models with a capacity > 4.5 kW connect the power supply cable directly the power source.
Do not use a plug and socket as the high current can damage both the terminals of the plug and
the socket and even cause a fire.
S3725 - S3731 - S3748
to outdoor unit

12. EVACUATING THE COOLING SYSTEM OF THE S37XX MODELS

Air and moisture that remain in the refrigerant system, e.g. after installation, can cause undesirable effects
or damage 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.
• Damage of the compressor.
Therefore, the indoor unit and tubing between the indoor and outdoor unit must always be leak tested
and evacuated with aid of a vacuum pump to remove any noncondensables and moisture from the system.
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TAKE CARE
Evacuating the coolant piping and the interior unit of the air conditioner must in accordance with
the applicable national regulations and laws. Evacuating the coolant piping and the interior unit
may only be carried out by a certified air conditioner fitter.
13. CHECK FOR COOLANT LEAKAGE FOR THE SC37XX AND S37XX MODELS
G
TAKE CARE
Evacuating the coolant piping and the interior unit of the air conditioner must be carried out
in accordance with the applicable national regulations. The test for coolant leakage of the
coolant piping and the interior unit may only be carried out by a certified fitter.
POSSIBILITIES FOR LEAK CHECK AIR CONDITIONER
• 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 the
piping. If bubbles come out, the pipes have leakage.
• Dedicated special leak detector: Use the leak detector to check for leakage.
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60 60
Figure 21