Owner manual

16
09704-09.2013-DGbFITrCn
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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.
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),
 itisrecommendedthattheoillevelischeckedinbothsightglasses.Theoillevelmustbevisible
 inatleastonesightglass.
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 Oil level check
5.7 Shaft seal
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).
Totrapandcollectleakedoil,theFK50isttedwithan
integrated leak oil trapping device with oil reservoir (P.6, Fig. 1).
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).