Electrolux E23CS75DSS0 - Equipment Needed; Evacuating System

75
Section E - Refrigeration System
Equipment Needed for Evacuation &
Recharging:
•  Heatedchargingcylinder
•  Standard3-portmanifoldgaugeset:
 -4charginghoses
 -Teettingwithvalvecorestemremoved
(RobinairNo.40396)
 -Handshut-offvalve(RobinairNo.40380)
•  Twostagevacuumpump
•  Processtubeadapterkit(RobinairNo.
12458)
•  Tubingcutter
•  Pinch-offtoolcapableofmakingleakproof
seal
•  Completebrazingtorchset
•  Small3-cornerle
•  GritclothorScotch-Brite
•  45%silversolderandux
•  HeatGun
Installing Evacuation and Recharging
Equipment
1.  Disconnectrefrigeratorfromelectricalsupply.
2.  Ifcompressorwasreplaced,installcorrect
sizedprocesstubeadaptoronprocesstube.
Ifcompressorwasnotreplaced,cutprocess
tubewithtubingcutterleavingasmuchtube
aspossibleandinstallcorrectsizeprocess
tubeadaptor.
3.  Installcorrectsizedprocesstubeadaptoron
high-sideprocesstube.
4.  Attachrefrigerationservicegaugemanifold
tosysteminfollowingorder:
 • Low-side(compoundgauge)hosetosuction
sideprocesstubeadaptor.
 • High-side(pressuregauge)hosetohigh-side
processtubeadaptor.
 • Centerportmanifoldhosebeforehandshut-
offvalvetochargingcylinder.
 • Centerportmanifoldhoseafterhandshut-off
valvetovacuumpump.
Evacuating System
WARNING
R-134a systems are particularly susceptible
to moisture contamination which can only
be prevented by evacuating the system for a
minimum of 30 minutes to attain a minimum
29.9 inch (500 micron or lower) vacuum.
Toachievetherequiredlevelsofevacuation,a
properlymaintainedtwostagevacuumpumpin
goodconditionisrequired.Itisabsolutelyessential
tomaintainyourvacuumpumpaccordingtothe
manufacturer’sinstructionsincludingrequired
oilchangesattherecommendedintervals.
Vacuumpumpoilshouldalwaysbechangedafter
evacuatingacontaminatedsystem.
Vacuumpumpperformanceshouldbechecked
periodicallywithamicrongauge.
1.  Makecertainthatchargingcylindervalve,
handshut-offvalve,andmanifoldgauge
valvesareclosed.
2.  Startvacuumpump.
3.  Openhandshut-offvalveandslowly
openbothmanifoldvalves,turning
counterclockwise,fortwofullrotations.
NOTE
OnproductswithLowsideleaksyoumustheat
thecrankcaseareaofthecompressorthough
outthe30minutesyouarerunningyourvacuum
pumptopullavacuumonthesystem.Every4
to5minuteswhileyouarerunningyourvacuum
pumpandheatingthecrankcaseareashake
thecompressor.Byheatingthecrank-caseyou
areheatingtheoilinthecompressor.Thiswill
drivethemoistureoutoftheoil.Byshakingthe
compressorthiswillallowthemoisturetocometo
thetopoftheoilfastersothevacuumpumpcan
removethemoisturefromthesystem.
CAUTION
If high vacuum equipment is used, just
crack both manifold valves for a few minutes
and then open slowly for the two full turns
counterclockwise. This will prevent the
compressor oil from foaming and being drawn
into the vacuum pump.
4.  Operatethevacuumpumpforaminimum
of30minutestoaminimumof29.9”(500
micron)vacuum.