Lenox Air Conditioner Elite Series User Manual

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07/11 506636−01
*2P0711* *P506636-01*
Page 1
201 Lennox Industries Inc.
Dallas, Texas, USA
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
These instructions are intended as a general guide and do
not supersede local codes in any way. Consult authorities
having jurisdiction before installation.
WARNING
Improper installation, adjustment, alteration, service or
maintenance can cause personal injury, loss of life, or
damage to property.
Installation and service must be performed by a licensed
professional installer (or equivalent) or a service agency.
IMPORTANT
The Clean Air Act of 1990 bans the intentional venting of
refrigerant (CFCs, HCFCs and HFCs) as of July 1, 1992.
Approved methods of recovery, recycling or reclaiming
must be followed. Fines and/or incarceration may be
levied for noncompliance.
IMPORTANT
This unit must be matched with an indoor coil as speci-
fied in Lennox XC14 Engineering Handbook. Coils pre-
viously charged with HCFC−22 must be flushed.
NOTICE TO INSTALLER
UNIT PLACEMENT
It is critical for proper unit operation to place outdoor unit on an
elevated surface as described in Unit Placement section on page 7.
BRAZING LINE SET TO SERVICE VALVES
It is imperative to follow the brazing technique illustrated starting on
page 12 to avoid damaging the service valve’s internal seals.
INSTALLATION
INSTRUCTIONS
Elite
®
Series XC14 Units
AIR CONDITIONER
506636−01
07/11
Supersedes 11/10
TABLE OF CONTENTS
General 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping and Packing List 1. . . . . . . . . . . . . . . . . . . . . .
Unit Dimensions 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model Number Identification 2. . . . . . . . . . . . . . . . . . . .
Unit Parts Arrangement 3. . . . . . . . . . . . . . . . . . . . . . . .
Operating Gauge Set and Service Valves 4. . . . . . . . .
Recovering Refrigerant from Existing System 6. . . . .
Unit Placement 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Installing Panels 9. . . . . . . . . . . . . . . . .
New or Replacement Line Set 10. . . . . . . . . . . . . . . . . . .
Brazing Connections 12. . . . . . . . . . . . . . . . . . . . . . . . . . .
Flushing Line Set and Indoor Coil 15. . . . . . . . . . . . . . . .
Installing Indoor Metering Device 16. . . . . . . . . . . . . . . .
Leak Test Line Set and Indoor Coil 17. . . . . . . . . . . . . . .
Evacuating Line Set and Indoor Coil 18. . . . . . . . . . . . .
Electrical 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing Units Delivered Void of Charge 23. . . . . . . . .
Unit Start−Up 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Refrigerant 23. . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Operation 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Start−Up and Performance Checklist 30. . . . . . . . . . . . .
General
The XC14 Air Conditioners, which will also be referred to in
this instruction as the outdoor unit, uses HFC−410A
refrigerant. This outdoor unit must be installed with a
matching indoor unit and line set as outlined in the Lennox
XC14 Engineering Handbook.
Shipping and Packing List
Check the unit for shipping damage and listed times below
are intact. If damaged, or if parts are missing, immediately
contact the last shipping carrier.
1  Assembled outdoor unit.
1  Refrigerant flow control (RFC) kit (Fixed Orifice)
Litho U.S.A.
Page view 0
1 2 3 4 5 6 ... 29 30

Summary of Contents

Page 1 - INSTRUCTIONS

07/11 506636−01*2P0711* *P506636-01*Page 1201 Lennox Industries Inc.Dallas, Texas, USARETAIN THESE INSTRUCTIONSFOR FUTURE REFERENCEThese instructions

Page 2

Page 10506636−01New or Replacement Line SetREFRIGERANT LINE SETThis section provides information on installation orreplacement of existing line set. I

Page 3 - CONTROL PANEL

Page 11XC14 SERIESANCHORED HEAVY NYLONWIRE TIE OR AUTOMOTIVEMUFFLER-TYPE HANGERSTRAP LIQUID LINE TOVAPOR LINEWALLSTUDLIQUID LINENON−CORROSIVEMETAL SLE

Page 4

Page 12506636−01Brazing ConnectionsUse the procedures outline in figures 8 and 9 for brazingline set connections to service valves.WARNINGPolyol Ester

Page 5 - THE LINE SET AND INDOOR UNIT

Page 13XC14 SERIESATTACH THE MANIFOLD GAUGE SET FOR BRAZING LIQUID AND SUCTION / VAPOR LINE SERVICEVALVESOUTDOORUNITLIQUID LINEVAPOR LINELIQUID LINE S

Page 6

Page 14506636−01WHEN BRAZING LINE SET TOSERVICE VALVES, POINT FLAMEAWAY FROM SERVICE VALVE.LIQUID LINE SERVICE VALVELIQUID LINEBRAZE LINE SETWrap both

Page 7 - Unit Placement

Page 15XC14 SERIESFlushing Line Set and Indoor CoilSENSINGLINETEFLON® RINGFIXED ORIFICEBRASS NUTLIQUID LINE ASSEMBLY(INCLUDES STRAINER)LIQUID LINE ORI

Page 8 - DETAIL E

Page 16506636−01Installing Indoor Metering Device This outdoor unit is designed for use in systems that useeither fixed orifice or expansion valve met

Page 9

Page 17XC14 SERIESIMPORTANTThe Environmental Protection Agency (EPA) prohibitsthe intentional venting of HFC refrigerants duringmaintenance, service,

Page 10 - IMPORTANT

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 11

Page 19XC14 SERIESIMPORTANTUse a thermocouple or thermistor electronic vacuumgauge that is calibrated in microns. Use an instrumentcapable of accurate

Page 12 - Brazing Connections

Page 2506636−01Unit Dimensions − Inches (mm) ELECTRICAL INLETSSIDE VIEWSUCTION LINECONNECTIONLIQUID LINECONNECTION4−1/2"(108)4−3/4"(121)TOP

Page 13

Page 20506636−01NOTE − Refer to furnace, blower coil and accessory instructions for additional wiring configurations with otheroptional controls.XC13X

Page 14 - 506636−01

Page 21XC14 SERIESTHERMAL PROTECTION SWITCH (S5 OR S173)HIGH PRESSURESWITCH (S4)CRANKCASE THERMOSTAT (S40)CRANKCASE HEATER (HR1)DUAL RUNCAPACITOR (C12

Page 15

Page 22506636−01Figure 17. Typical Unit Wiring Diagram

Page 16 - ASSEMBLY

Page 23XC14 SERIESServicing Units Delivered Void of ChargeIf the outdoor unit is void of refrigerant, clean the systemusing the procedure described be

Page 17

Page 24506636−01WHEN TO CHARGE? Warm weather best Can charge in colder weatherCHARGE METHOD? Determine by: Metering device type Outdoor ambient te

Page 18 - Figure 13. Evacuating System

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 19

Page 26506636−01DO NOT CHARGE UNIT(Results of charging at lowtemperatures not reliable)START: Measure outdoor ambient temperatureUSE WEIGH-IN METHODWe

Page 20

Page 27XC14 SERIESSTART: Measure outdoor ambient temperatureNOTE − Do not attempt to charge system where adash appears, system could be overcharged.Su

Page 21 - XC14 SERIES

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 22

Page 29XC14 SERIESWhen liquid line temperature drops below 50°F thethermostat closes energizing HR1. The thermostat willopen, de−energizing HR1 once l

Page 23 - GAUGE SET

Page 3XC14 SERIESTypical Unit Parts ArrangementLIQUID LINE FILTERDRIER (SINGLE−FLOW)FIELD CONNECTIONFOR LIQUID LINE SETLIQUID LINE SERVICEVALVESUCTION

Page 24

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 25 - WEIGH IN

Page 4506636−01WARNINGElectric Shock Hazard. Can cause injuryor death. Unit must be grounded inaccordance with national and localcodes.Line voltage is

Page 26 - SUBCOOLING TXV

Page 5XC14 SERIES(VALVE STEM SHOWNCLOSED) INSERT HEXWRENCH HERESERVICE PORT CORESERVICE PORT CAPANGLE−TYPE SERVICE VALVE(FRONT−SEATED CLOSED)SERVICE P

Page 27 - USE WEIGH-IN METHOD

Page 6506636−01Recovering Refrigerant from Existing SystemMAIN FUSE BOX/BREAKER PANELDisconnect all power to the existing outdoor unit at the disconne

Page 28

Page 7XC14 SERIESCONTROL PANELACCESSLOCATION6 (152)36 (914)12 (305)30 (762)LINE SETCONNECTIONS24 (610)48 (1219)MINIMUM CLEARANCE BETWEENTWO UNITSCLEAR

Page 29

Page 8506636−01LEG DETAILBASE2" (50.8MM) SCH 40FEMALE THREADEDADAPTERConcrete slab  use two plastic anchors (holedrill 1/4")Wood or plastic

Page 30

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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