Friedrich Kuhl+ KEQ08A11A User Manual

42 PB
R-410A SEALED SYSTEM REPAIR
WARNING
Refrigeration system under high pressure
O
service this equipment.
R410A systems operate at higher pressures than
R22 equipment. Appropriate safe service and
handling practicces must be used.
Only use gauge sets designed for use with R410A.
Do not use standard R22 gauge sets.
The following is a list of important considerations when
working with R-410A equipment
1.R-410A pressure is approximately 60% higher than R-22
pressure.
2.R-410Acylindersmustnotbeallowedtoexceed125F,theymay
leakorrupture.
3.R-410Amustneverbepressurizedwithamixtureofair,itmay
become
ammable.
4.Servicingequipmentandcomponentsmustbespecically
designedforusewithR-410Aanddedicatedtoprevent
contamination.
5.Manifoldsetsmustbeequippedwithgaugescapableofreading750psig(highside)and200psig(lowside),witha500-psig
low-sideretard.
6.Gaugehosesmusthaveaminimum750-psigservicepressurerating
7.Recoverycylindersmusthaveaminimumservicepressureratingof400psig,(DOT4BA400andDOTBW400approved
cylinders).
8.POE(Polyol-Ester)lubricantsmustbeusedwithR-410Aequipment.
9.Topreventmoistureabsorptionandlubricantcontamination,donotleavetherefrigerationsystemopentotheatmosphere
longerthan1hour.
10.Weigh-intherefrigerantchargeintothehighsideofthesystem.
11.Introduceliquidrefrigerantchargeintothehighsideofthesystem.
12.ForlowsidepressurechargingofR-410A,useachargingadaptor.
13.UseFriedrichapprovedR-410Alterdryersonly.
IMPORTANT
SEALEDSYSTEMREPAIRSTOCOOL-ONLYMODELSREQUIRETHEINSTALLATIONOFALIQUIDLINEDRIER.
EQUIPMENT REQUIRED:
1. Voltmeter
2. Ammeter
3. Ohmmeter
4. E.P.A.ApprovedRefrigerantRecoverySystem
5. VacuumPump(capableof200micronsorlessvacuum.)
6. AcetyleneWelder
7. ElectronicHalogenLeakDetectorcapableofdetectingHFC(Hydrouorocarbon)refrigerants.
8. Accuraterefrigerantchargemeasuringdevicesuchas:
a. BalanceScales-1/2oz.accuracy
b. ChargingBoard-1/2oz.accuracy
9. HighPressureGauge-(0to750lbs.)
10. LowPressureGauge-(-30to200lbs.)
11. VacuumGauge-(0-1000microns)
12. Facilitiesforowingnitrogenthroughrefrigerationtubingduringallbrazingprocesses.
EQUIPMENT MUST BE CAPABLE OF:
1. RecoveringrefrigeranttoEPArequiredlevels.
2. Evacuationfromboththehighsideandlowsideofthesystemsimultaneously.
3. Introducingrefrigerantchargeintohighsideofthesystem.
4. Accuratelyweighingtherefrigerantchargeintroducedintothesystem.

Friedrich Kuhl+ KEQ08A11A Specifications

General

Brand	Friedrich
Model	Kuhl+ KEQ08A11A
Category	Air Conditioner
Language	English