Manual

16
09740-09.2013-DGbFITr
D
GB
F
I
TR
5| Commissioning
CAUTION! Wear personal protective clothing such as goggles and
protective gloves!
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.
ATTENTION! Avoidoverllingthesystemwithrefrigerant!
To avoid shifts in concentration, zeotropic refrigerant blends
    (e.g.R407C)mustalwaysbeaddedtotherefrigeratingplant
    inliquidform.
 Donotpourliquidrefrigerantthroughthesuctionlinevalveon
the compressor.
It is not permissible to mix additives with the oil and
refrigerant.
5.5 Refrigerant charge
5.6 Shaft seal
Aschangingthesealinvolvesopeningtherefrigerantcircuit,thisisrecommendedonlyifthesealis
losingrefrigerant.Replacingthesealisdescribedinthesparepartkitconcerned.
ATTENTION! Failure to observe the following instructions can cause loss
of refrigerant and damage to the shaft seal!
INFO! The shaft seal seals and lubricates 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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.
5.6.1 Notes on replacing the shaft seal