Instruction Manual

D
GB
F
E
17
96246-07.2014-DGbRu
5| Commissioning
5.5 Refrigerant charge
5.6 Shaft seal
CAUTION Riskofinjury!
Contactwithrefrigerantcancausesevereburnsandskindamage.
Avoid contact with refrigerant and wear personal protective
clothingsuchasgogglesandprotectivegloves!
ATTENTION Avoidoverllingthesystemwithrefrigerant!
Toavoidshiftsinconcentration,zeotropicrefrigerantblendsmust
alwaysonlybelledintotherefrigeratingplantinliquidform.
Donotpourliquidcoolantthroughthesuctionlinevalveon
the compressor.
It is not permissible to mix additives with the oil and
refrigerant.
ATTENTION Failure to observe the following instructions can cause loss of
refrigerantanddamagetotheshaftseal!
INFO The shaft seal lubricates and seals with oil. An oil leakage of
0.05 ml per operating hour is therefore normal. This applies
particularly during the run-in phase (200 - 300 h).
The compressor is equipped with an integrated leak oil drain
hose.Throughadrainhoseleakoilcanbedrained.
Disposeoftheleakoilinaccordancewiththevalidnationalre-
gulations.
Make 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 vapour
formonthesuctionside,or,takingsuitableprecautions,alsoinliquidformattheinlettothe
evaporator.
The compressor shaft is sealed to outside using a shaft seal. The sealing element rotates with the
shaft.
Thefollowingisespeciallyimportanttoensuringfault-freeoperation:
The complete refrigerant circuit must be correctly executed and clean inside.
Heavy shocks and vibrations to the shaft as well as continuous cyclic operation are to be avoided.
 Thesealingsurfacescansticktogetherduringprolongeddowntimes(e.g.winter).Therefore,run
the system every 4 weeks for 10 minutes.