Manual

96020-02.2015-DGbFEI

6| Commissioning

6.4 Evacuation

ATTENTION Do not start the compressor if it is under vacuum. Do not apply

anyvoltage-evenfortestpurposes(mustonlybeoperatedwith

refrigerant).

Under vacuum, the spark-over and creepage current distances of the

terminal board connection bolts shorten; this can result in winding and

terminal board damage.

First evacuate the system and then include the compressor in the evacuation process.

Relieve the compressor pressure.

Open the suction and pressure line shut-off valves.

Evacuate the suction and discharge pressure sides using the vacuum pump.

At the end of the evacuation process, the vacuum should be < 1.5 mbar when the pump is switched off.

 Repeatthisprocessasoftenasisrequired.

Make sure that the suction and pressure line shut-off valves are open.

6.5 Kältemittelfüllung

Fillingtheliquidrefrigerant:Itisrecommendedthatthesystemrstbelled

at standstill with gas on the high-pressure side up to a system pressure of at

least5.2bar(ifitislledbelow5.2barwithliquid,thereisariskofdryice

formation).Furtherllingaccordingtosystem.

To eliminate the possibility of dry ice formation when the system is operating

(duringandafter the llingprocess),the shut-off pointof the low-pressure

switch should be set to a value of at least 5.2 bar.

•Arefrigerantsupplement,whichmaybecomenecessaryafterstart-up,canbe

topped up in vapour form on the suction side.

ATTENTION Avoid overfilling the machine with refrigerant!

Donotchargeliquidrefrigerantintothesuction-sideonthe

compressor.

Do not mix additives with the oil and refrigerant.

CAUTION Wear personal protective clothing such as goggles and protective

gloves!

WARNING Never exceed the max. permissible pressures while charging.

Precautionsmustbetakenintime.

INFO Depending upon design of the CO

refrigerantllingbottle

(with/withouttubing)CO

canbelledinliquidafterweightor

gaseously.

Use only high-dried CO

quality!