Evacuating The Cooling System Of The S41Xx & S5Xxx Models; Topping Up Coolant For Piping Lengths Above 05 Metres; Test Running After Installation - Qlima S5025 Manuel D'installation

12. EVACUATING THE COOLING SYSTEM OF THE S41XX & S5XXX 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.
G
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 S41XX, S5XXX, SC41XX & SC5XXX
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
• S oap 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.

14. TOPPING UP COOLANT FOR PIPING LENGTHS ABOVE 05 METRES.

G
TAKE CARE
Connecting the coolant pipes of an air conditioner must be carried out in accordance with the
applicable national regulations and laws. Refilling the coolant may only be carried out by an
authorised fitter.
The air conditioner is filled with sufficient coolant at the factory for a pipe length of a maximum of 5 metres.
If the coolant piping is longer than 5 metres then the air conditioner must be topped up with extra coolant.
The amount of coolant to be added is shown in table 2
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For piping longer
than 5 metres
Model
Extra filling per
meter in grams
2.5 – 2.6 kW 20
3.1 – 3.6 kW 20
4.8 – 5.4 kW 20
Tabel 2
Only use coolant of the same type as stated on the type plate.

15. TEST RUNNING AFTER INSTALLATION

Perform test running after completing electrical safety check and gas leak check.
The test running time should last more than 30 minutes.
Check if all the functions works well during test running. Especially check whether the drainage of indoor
unit is smooth or not.
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