Haier GE NS16AS Installation Instructions Manual

Also see for GE NS16AS: Service manual

507043-04G / 31-5000666Page 7 of 18Issue 2112Before brazing, ensure the system is fullyrecovered of all refrigerant. Application of abrazing torch to a pressurized system mayresult in ignition of the refrigerant and oilmixture. Check the high and low pressuresbefore applying heat.WARNINGBrazing alloys and flux contain materials which arehazardous to your health.Avoid breathing vapors or fumes from brazingoperations. Perform operations only in well-ventilatedareas.Wear gloves and protective goggles or face shield toprotect against burns.Wash hands with soap and water after handling brazingalloys and flux.WARNINGUse a manifold gauge set designed for use on R-410Arefrigerant systems.NOTEATTACH THE MANIFOLD GAUGE SET FOR BRAZING LIQUID AND VAPOR LINE SERVICE VALVESOUTDOORUNITLIQUID LINEVAPOR LINELIQUID LINE SERVICEVALVEVAPOR LINESERVICEVALVEATTACHGAUGESINDOORUNITVAPOR SERVICE PORT MUST BE OPENTO ALLOW EXIT POINT FOR NITROGENA - Connect gauge set low pressure side toliquid line service valve (service port).B - Connect gauge set center port to bottle ofnitrogen with regulator.C - Remove core from valve in vapor lineservice port to allow nitrogen to escape.NITROGENHIGHLOW USE REGULATOR TO FLOWNITROGEN AT 1 TO 2 PSIG.BACWHEN BRAZING LINE SET TOSERVICE VALVES, POINT FLAMEAWAY FROM SERVICE VALVE.Flow regulated nitrogen (at 1 to 2 psig) through the low-side refrigeration gauge set into the liquid line service port valve, and out of thevapor line service port valve.CUT AND DEBUR CAP AND CORE REMOVALCut ends of the refrigerant lines square (free from nicks or dents)and debur the ends. The pipe must remain round. Do not crimp endof the line.Remove service cap and core fromboth the vapor and liquid line serviceports.1 2LIQUID LINE SERVICEVALVESERVICEPORTCORESERVICE PORTCAPSERVICEPORTCORESERVICEPORT CAPCUT AND DEBURLINE SET SIZE MATCHESSERVICE VALVE CONNECTIONDO NOT CRIMP SERVICE VALVECONNECTOR WHEN PIPE ISSMALLER THAN CONNECTION3VAPOR LINE SERVICEVALVECOPPER TUBESTUBREFRIGERANT LINEREDUCERSERVICE VALVECONNECTIONLINE SET SIZE IS SMALLERTHAN CONNECTIONRefrigerant Piping - Brazing Procedures