Samsung AR**MXWS Series Installation Manual

Contents

7EnglishInstallationRecovery• When removing refrigerant from the system forservicing or decommissioning, it is recommended toremove the entire refrigerant.• When transferring refrigerant into cylinders, makesure that only the refrigerant recovery cylindersare used.• All cylinders used for the recovered refrigerant shallbe labelled.• Cylinders shall be equipped with pressure reliefvalves and shut-off valves in a proper order.• Empty recovery cylinders shall be evacuated andcooled before recovery.• The recovery system shall operate normallyaccording to the specified instructions and shall besuitable for refrigerant recovery.• In addition, the calibration scales shall operatenormally.• Hoses shall be equipped with leak-free disconnectcouplings.• Before starting the recovery, check for the status ofthe recovery system and sealing state. Consult withthe manufacturer if suspected.• The recovered refrigerant shall be returned to thesupplier in the correct recovery cylinders with theWaste Transfer Note attached.• Do not mix refrigerants in the recovery units orcylinders.• If compressors or compressor oils are to beremoved, make sure that they have been evacuatedto the acceptable level to ensure that flammablerefrigerant does not remain in the lubricant.• The evacuation process shall be performed beforesending the compressor to the suppliers.• Only the electrical heating to the compressor bodyis allowed to accelerate the process.• Oil shall be drained safely from the system.• For installation with handling the refrigerant(R-32), use dedicated tools and piping materials.Because the pressure of the refrigerant, R-32 isapproximately 1.6 times higher than that of R-22,failure to use the dedicated tools and pipingmaterials may cause rupture or injury. Furthermore,it may cause serious accidents such as waterleakage, electric shock, or fire.• Never install a motor-driven equipment to preventignition.Power supply line, fuse, or circuitbreaker• Always make sure that the power supply iscompliant with current safety standards. Alwaysinstall the air conditioner in compliance withcurrent local safety standards.• Always verify that a suitable groundingconnection is available.• Verify that the voltage and frequency of thepower supply comply with the specifications andthat the installed power is sufficient to ensurethe operation of any other domestic applianceconnected to the same electric lines.• Always verify that the cut-off and protectionswitches are suitably dimensioned.• Verify that the air conditioner is connected to thepower supply in accordance with the instructionsprovided in the wiring diagram included in themanual.• Always verify that electric connections (cableentry, section of leads, protections…) arecompliant with the electric specifications andwith the instructions provided in the wiringscheme. Always verify that all connections complywith the standards applicable to the installationof air conditioners.• Be sure not to perform power cable modification,extension wiring, and multiple wire connection.– It may cause electric shock or fire due to poorconnection, poor insulation, or current limitoverride.– When extension wiring is required dueto power line damage, refer to "Step 2.4Optional: Extending the power cable" in theinstallation manual.