07/11 506636−01*2P0711* *P506636-01*Page 1201 Lennox Industries Inc.Dallas, Texas, USARETAIN THESE INSTRUCTIONSFOR FUTURE REFERENCEThese instructions
Page 10506636−01New or Replacement Line SetREFRIGERANT LINE SETThis section provides information on installation orreplacement of existing line set. I
Page 11XC14 SERIESANCHORED HEAVY NYLONWIRE TIE OR AUTOMOTIVEMUFFLER-TYPE HANGERSTRAP LIQUID LINE TOVAPOR LINEWALLSTUDLIQUID LINENON−CORROSIVEMETAL SLE
Page 12506636−01Brazing ConnectionsUse the procedures outline in figures 8 and 9 for brazingline set connections to service valves.WARNINGPolyol Ester
Page 13XC14 SERIESATTACH THE MANIFOLD GAUGE SET FOR BRAZING LIQUID AND SUCTION / VAPOR LINE SERVICEVALVESOUTDOORUNITLIQUID LINEVAPOR LINELIQUID LINE S
Page 14506636−01WHEN BRAZING LINE SET TOSERVICE VALVES, POINT FLAMEAWAY FROM SERVICE VALVE.LIQUID LINE SERVICE VALVELIQUID LINEBRAZE LINE SETWrap both
Page 15XC14 SERIESFlushing Line Set and Indoor CoilSENSINGLINETEFLON® RINGFIXED ORIFICEBRASS NUTLIQUID LINE ASSEMBLY(INCLUDES STRAINER)LIQUID LINE ORI
Page 16506636−01Installing Indoor Metering Device This outdoor unit is designed for use in systems that useeither fixed orifice or expansion valve met
Page 17XC14 SERIESIMPORTANTThe Environmental Protection Agency (EPA) prohibitsthe intentional venting of HFC refrigerants duringmaintenance, service,
Page 18506636−01Evacuating Line Set and Indoor Coil A Open both manifold valves and start the vacuum pump.B Evacuate the line set and indoor unit to a
Page 19XC14 SERIESIMPORTANTUse a thermocouple or thermistor electronic vacuumgauge that is calibrated in microns. Use an instrumentcapable of accurate
Page 2506636−01Unit Dimensions − Inches (mm) ELECTRICAL INLETSSIDE VIEWSUCTION LINECONNECTIONLIQUID LINECONNECTION4−1/2"(108)4−3/4"(121)TOP
Page 20506636−01NOTE − Refer to furnace, blower coil and accessory instructions for additional wiring configurations with otheroptional controls.XC13X
Page 21XC14 SERIESTHERMAL PROTECTION SWITCH (S5 OR S173)HIGH PRESSURESWITCH (S4)CRANKCASE THERMOSTAT (S40)CRANKCASE HEATER (HR1)DUAL RUNCAPACITOR (C12
Page 22506636−01Figure 17. Typical Unit Wiring Diagram
Page 23XC14 SERIESServicing Units Delivered Void of ChargeIf the outdoor unit is void of refrigerant, clean the systemusing the procedure described be
Page 24506636−01WHEN TO CHARGE? Warm weather best Can charge in colder weatherCHARGE METHOD? Determine by: Metering device type Outdoor ambient te
Page 25XC14 SERIESCHECKING AIR FLOW AT INDOOR COILCheck airflow using the Delta−T (DT) process using the illustration in figure 20.1. Determine the de
Page 26506636−01DO NOT CHARGE UNIT(Results of charging at lowtemperatures not reliable)START: Measure outdoor ambient temperatureUSE WEIGH-IN METHODWe
Page 27XC14 SERIESSTART: Measure outdoor ambient temperatureNOTE − Do not attempt to charge system where adash appears, system could be overcharged.Su
Page 28506636−01Table 4. Normal Operating Pressures (Liquid +10 and Suction +5 psig)IMPORTANTUse this table to perform maintenance checks; it is not a
Page 29XC14 SERIESWhen liquid line temperature drops below 50°F thethermostat closes energizing HR1. The thermostat willopen, de−energizing HR1 once l
Page 3XC14 SERIESTypical Unit Parts ArrangementLIQUID LINE FILTERDRIER (SINGLE−FLOW)FIELD CONNECTIONFOR LIQUID LINE SETLIQUID LINE SERVICEVALVESUCTION
Page 30506636−01at the indoor unit (installed internal or external to thecabinet) or behind a return air grille in the wall orceiling. Check the filte
Page 4506636−01WARNINGElectric Shock Hazard. Can cause injuryor death. Unit must be grounded inaccordance with national and localcodes.Line voltage is
Page 5XC14 SERIES(VALVE STEM SHOWNCLOSED) INSERT HEXWRENCH HERESERVICE PORT CORESERVICE PORT CAPANGLE−TYPE SERVICE VALVE(FRONT−SEATED CLOSED)SERVICE P
Page 6506636−01Recovering Refrigerant from Existing SystemMAIN FUSE BOX/BREAKER PANELDisconnect all power to the existing outdoor unit at the disconne
Page 7XC14 SERIESCONTROL PANELACCESSLOCATION6 (152)36 (914)12 (305)30 (762)LINE SETCONNECTIONS24 (610)48 (1219)MINIMUM CLEARANCE BETWEENTWO UNITSCLEAR
Page 8506636−01LEG DETAILBASE2" (50.8MM) SCH 40FEMALE THREADEDADAPTERConcrete slab use two plastic anchors (holedrill 1/4")Wood or plastic
Page 9XC14 SERIESROOF MOUNTINGInstall the unit a minimum of 6 inches (152 mm) above theroof surface to avoid ice build−up around the unit. Locatethe u
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