Ways to check the leak tightness of an air conditioner
• Soapy water method: Apply soapy water or a liquid neutral cleaning agent on the fitting of the
indoor unit or the fittings of the outdoor unit with a soft brush and check for leaks at the fittings of
the piping. If air bubbles appear, the pipes are leaking.
• Special leak detector: Use the leak detector to check for leaks.
14. ADDING REFRIGERANT WITH PIPE LENGTHS OVER 5 METER.
G
ATTENTION
Adding refrigerant to an air conditioner has to be done according the applicable national
statutory provisions. Adding refrigerant to an air conditioner may only be performed by an
authorised technician.
The air conditioner is filled with refrigerant in the factory, appropriate for a pipe length of maximum 5
meter.
If the refrigerant piping is longer than 5 meter, extra refrigerant has to be added to the air conditioner.
Refer to table 2 for an overview of the amount of refrigerant that needs to be added
Table 2
Model
With piping length
over 5 meter.
Extra filling per
meter in gram
S3925 20
S3932 20
Use only the refrigerant specified on the nameplate.
15. TEST RUN AFTER INSTALLATION OF THE S 39XX AND SC 39XX MODELS.
Test the installation after confirmation of the save installation of the electrical and gas equipment. The test
run should be longer than 30 minutes.
Check all the functions during the test run. Check in particular if the condensed water drain from the indoor
unit is working properly.
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