GEA FK40 Series Assembly Instructions Manual

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GEA FK40 Series Assembly Instructions Manual Manual pdf 16 page image

1609716-06.2016-DGbFEITrCnRuDGBFEITRCNRu5| CommissioningMake sure that the suction and discharge line valves are open.With the compressor switched off, add the liquid refrigerant directly to the condenser or receiver,breaking the vacuum.If the refrigerant needs topping up after starting the compressor, it can be topped up in vapourform on the suction side, or, taking suitable precautions, also in liquid form at the inlet to theevaporator.After starting, check the compressor's oil level.Drive motor in operating condition "High idle".Compressor run time min. 10 minutes.The system should have reached operating points.Check oil level. As the installation location of the compressor can differ in practice (inclinations), itis recommended that the oil level is checked in both sight glasses. The oil level must be visible inat least one sight glass.5.5 Refrigerant charge5.6 Oil level check5.7 Shaft sealCAUTION Wear personal protective clothing such as goggles and protectivegloves!ATTENTION Avoid overfilling the system with refrigerant!To avoid shifts in concentration, zeotropic refrigerant blendsmust always be added to the refrigerating plant in liquid form.Do not pour liquid refrigerant through the suction line valve on thecompressor.It is not permissible to mix additives with the oil and refrigerant.ATTENTION After a compressor is replaced, the oil level must be checked again.If the level is too high, oil must be drained off (risk of oil impact,reduced performance of the air-conditioning system).ATTENTION Failure to observe the following instructions can cause loss ofrefrigerant and damage to the shaft seal!INFO The shaft seal seals and lubricates with oil. An oil leakage of0.05 ml per operating hour is therefore normal. This appliesparticularly during the run-in phase (200 - 300 h).To trap and collect leaked oil, the FK40 is fitted with an inte-grated leak oil trapping device with oil reservoir (P.6, Fig. 1).