Compressor - limited warranty for ten years in
residential installations and ve years in non-residential
installations.
All other covered components - ve years in
residential installations and one year in non-residential
installations.
Refer to Lennox Equipment Limited Warranty certicate
included with unit for specic details.
Applications
SEER up to 16.50.
1.5 through 5 ton.
Single-phase power supply.
Vertical air discharge allows concealment behind shrubs
at grade level or out of sight on a roof.
Matching add-on furnace indoor coils or air handlers
provide a wide range of cooling capacities and
applications. See AHRI Ratings table. See Indoor Coils
and Air Handlers sections for data.
Units shipped completely factory assembled, piped and
wired.
Each unit test operated at the factory ensuring proper
operation. Installer must set air conditioner, connect
refrigerant lines and make electrical connections to
complete job.
G
H
B
C
F
A
D
E
I
Approvals
Certied in Accordance with the USE certication
program, which is based on AHRI Standard 210/240-
2008.
Sound rated in Lennox reverberant sound test room
in Accordance with test conditions included in AHRI
Standard 270-2008.
Tested in the Lennox Research Laboratory
environmental test room. Rated According to U.S.
Department of Energy (DOE) test procedures.
Units and components within bonded for grounding to
meet safety standards for servicing required by UL,
NEC and CEC.
Units are UL listed and CSA certied.
ISO 9001 Registered Manufacturing Quality System.
EnErgy Star® certied units are designed to use less
energy, help save money on utility bills, and help protect
the environment.
For expanded ratings, see www.lennoxdavenet.com
XC14 - 1.5 to 5 Ton Air Conditioner / Page 2
REFRIGERATion SYSTEM
R-410A Refrigerant
Non-chlorine, ozone friendly, R-410A.
Unit pre-charged with refrigerant. See
Specication table.
RFCIV METERING SYSTEM
FEATURES
REFRIGERATion SYSTEM (C0NTINUED)
Outdoor Coil Fan
B
Direct drive fan moves large air volumes uniformly
through entire condenser coil for high refrigerant cooling
capacity.
Vertical air discharge minimizes operating sounds and
eliminates damage to lawn and shrubs.
Fan motor has sleeve bearings and is inherently
protected.
Motor totally enclosed for maximum protection from
weather, dust and corrosion.
Fan guard constructed of corrosion-resistant PVC
(polyvinyl chloride) coated steel.
Fan service access accomplished by removal of fan
guard.
Copper Tube/Enhanced Fin Coil
C
Lennox designed and fabricated coil.
Ripple-edged aluminum ns.
Copper tube construction.
Lanced ns provide maximum exposure of n surface to
air stream resulting in excellent heat transfer.
Coil is factory tested under high pressure to ensure
leakproof construction.
Entire coil is accessible for cleaning.
Refrigerant Flow Control
Units applicable to expansion valve systems or RFC
systems when matched with specic evaporator coils.
RFCIV METERING SYSTEM
ORIFICE BODY
(On Coil)
O−RING
LIQUID
LINE SCREEN
SEAL
NUT
RFCIV
ORIFICE
LIQUID
LINE
SWEAT
CONNECTION
High Capacity Liquid Line Drier
D
Furnished with unit for eld installation.
Approved for use with R-410A systems.
Traps any moisture or dirt that could contaminate the
refrigerant system.
High Pressure Switch
E
Shuts off unit if abnormal operating conditions cause the
discharge pressure to rise above setting.
Protects compressor from excessive condensing
pressure.
Manual reset.
OPTIONS
Expansion Valve Kits
Must be ordered extra and eld installed on certain
indoor units.
See TXV/Orice Usage table.
Chatleff-style ttings.
Freezestat
Installs on or near the vapor line of the indoor coil or on
the suction line.
Senses suction line temperature and cycles the
compressor off when suction line temperature falls
below it’s setpoint.
Opens at 29°F and closes at 58°F.
Loss of Charge Switch Kit
Helps protect the compressor from damage due low
refrigerant charge conditions.
SPST, normally-closed switch, automatic reset switch
mounted on suction line.
Refrigerant Line Kits
Refrigerant lines (suction & liquid) are shipped
refrigeration clean.
Lines are cleaned, dried, pressurized and sealed at
factory.
Suction line fully insulated.
Lines are stubbed at both ends.
Not available for -060 models and must be eld
fabricated.
RFCIV:
Accurately meters refrigerant in system.
Refrigerant control is accomplished by exact sizing of
refrigerant metering orice.
The principle involves matching indoor coil with proper
bore size of orice in metering device.
Equalizes pressure shortly after compressor stops, unit
starts unloaded, eliminating need for additional controls.
Furnished with air conditioner.
XC14 - 1.5 to 5 Ton Air Conditioner / Page 3
FEATURES
COMPRESSOR
Scroll Compressor
F
Compressor features high
efciency with uniform suction
ow, constant discharge ow and
high volumetric efciency and
quiet operation.
Compressor consists of two
involute spiral scrolls matched
together to generate a series of
crescent shaped gas pockets
between them.
During compression, one scroll
remains stationary while the other
scroll orbits around it.
Gas is drawn into the outer pocket, the pocket is sealed
as the scroll rotates.
As the spiral movement continues, gas pockets are
pushed to the center of the scrolls. Volume between the
pockets is simultaneously reduced.
When pocket reaches the center, gas is now at high
pressure and is forced out of a port located in the center
of the xed scrolls.
During compression, several pockets are compressed
simultaneously resulting in a smooth continuous
compression cycle.
Continuous ank contact, maintained by centrifugal
force, minimizes gas leakage and maximizes efciency.
Scroll compressor is tolerant to the effects of slugging
and contaminants. If this occurs, scrolls separate,
allowing liquid or contaminants to be worked toward the
center and discharged.
Low gas pulses during compression reduces
operational sound levels.
Compressor motor is internally protected from
excessive current and temperature.
Compressor is installed in the unit on specially
formulated, resilient rubber base for improved sound
dampening and vibration-free operation resulting in
quieter operating sound levels. See Outdoor Sound
Data table for details.
Compressor Crankcase Heater (048 & 060 Models)
Protects against refrigerant migration that can occur
during low ambient operation.
Factory Installed
Compressor Sound Dampening System
A polyethylene compressor cover containing a 2 inch
thick batt of berglass insulation for better sound
dampening.
All open edges are sealed with a one-inch wide hook
and loop fastening tape.
OPTIONS
Compressor Crankcase Heater (018 thru 042
models)
Protects against refrigerant migration that can occur
during low ambient operation.
Compressor Hard Start Kit
Single-phase units are equipped with a PSC
compressor motor. This type of motor normally doesn’t
need a potential relay and start capacitor.
In conditions such as low voltage, this kit may be
required to increase the compressor starting torque.
Compressor Low Ambient Cut-Off
Non-adjustable switch (low ambient cut-out) prevents
compressor operation when outdoor temperature is
below 35°F.
CONTROLS
OPTIONS
Indoor Blower Off Delay Relay
Delays the indoor blower-off time during the cooling
cycle.
See AHRI System Matches for usage.
Low Ambient Kit
Air conditioners operate satisfactorily down to 45°F
outdoor air temperature without any additional controls.
Low Ambient Control Kit can be eld installed, allowing
unit operation down to 30°F.
Freezestat should be installed on compressors
equipped with a low ambient kit.
A compressor lock-out thermostat should be added to
terminate compressor operation below recommended
operation conditions
Thermostat
Thermostat not furnished with unit. See Thermostat
bulletins in Controls Section and Lennox Price Book.
Compressor Timed-Off Control
Kit prevents compressor short-cycling and allows time
for suction and discharge pressure to equalize.
Permits compressor start-up in an unloaded condition.
Automatic reset with 5 minute delay between
compressor shut-off and start-up.
XC14 - 1.5 to 5 Ton Air Conditioner / Page 4
FEATURES
CABINET
Heavy-gauge steel construction
G
Pre-painted cabinet nish.
Painted base section.
Control box is conveniently located with all controls
factory wired.
Corner patch plate allows access to compressor
components.
Drainage holes are provided in base section for
moisture removal.
High density polyethylene unit support feet raise the
unit off of the mounting surface, away from damaging
moisture.
Panels are hinged to allow easy
cleaning and servicing of coils.
Panels may be completely
removed.
Interlocking tabs and slots
assure tight t on cabinet.
Refrigerant Line Connections, Electrical Inlets and
I
Service Valves
Suction and liquid lines are located on corner of unit
cabinet and are made with sweat connections.
See dimension drawing.
Fully serviceable brass service valves prevent corrosion
and provide access to refrigerant system. Suction valve
can be fully shut off, while liquid valve may be front
seated to manage refrigerant charge while servicing
system.
Refrigerant line connections and eld wiring inlets are
located in one central area of the cabinet.
NOTE - the octave sound power data does not include tonal correction.
1
Tested according to AHRI Standard 270-2008 test conditions.
FIELD WIRING
1
Sound
Rating
Number
(dB)
DISCONNECT
SWITCH
(By Others)
THERMOSTAT
(Optional)
DISCONNECT
SWITCH
(By Others)
A
B
D
C
LENNOX
AIR
CONDITIONER
LENNOX
HEATING UNIT
OR
AIR HANDLER
UNIT
INSTALLATION CLEARANCES - INCHES (MM)
See NOTES
NOTES:
Service clearance of 30 in. (762 mm) must be maintained on one
of the sides adjacent to the control box.
A - Two Wire Power (not furnished)
B - Two Power (not furnished). See Electrical Data
C - Four Wire Low Voltage (not furnished). 18 ga. minimum
D - Five Wire Low Voltage (not furnished). 18 ga. minimum
All wiring must conform to NEC or CEC and local electrical
codes.
See
NOTES
See NOTES
XC14 - 1.5 to 5 Ton Air Conditioner / Page 8
See
NOTES
Control
Box
Clearance to one of the other three sides must be 36 in. (914 mm)
Clearance to one of the remaining two sides may be 12 in. (305
mm) and the final side may be 6 in. (152 mm).
A clearance of 24 in. (610 mm) must be maintained between two
units.
48 in. (1219 mm) clearance required on top of unit.
DIMENSIONS - INCHES (MM)
TOP VIEW
DISCHARGE AIR
SUCTION LINE
CONNECTION
LIQUID LINE
CONNECTION
BC
LIQUID LINE
CONNECTION
UNIT SUPPORT
FEET
8−1/2
(216)
8−3/4
(222)
5−1/2
(140)
4−1/4(108)
SIDE VIEW
13−1/2
(343)
XC14-018 BASE SECTION
ELECTRICAL
INLETS
SUCTION LINE
CONNECTION
4−3/4
(121)
9−1/2
(241)
8−1/4
(210)
A
2 (51)
UNIT SUPPORT
FEET
D
E
1 (25)
F
END VIEW
G
H
XC14-024 TO -060 BASE SECTION
K
J
Model No.
ABCDEFGHJK
in. mmin.mmin.mmin.mmin.mm in. mmin.mmin.mmin. mmin.mm
CX34 upow coils and all Lennox air handlers (except CB26UH “R”) are
shipped with a factory installed TXV. In most cases, no change out of the valve
is needed.
If a change out is required it will be listed in the “TXV SUBSTITUTIONS” table.
The correct TXV must be ordered and eld installed. C33 coils and all horizontal and downow coils are shipped without a TXV. The TXV must be ordered
and eld installed. .
Thermal
Expansion
Valve (TXV)
MOST POPULAR MATCHES
Outdoor Unit
Model No.
XC14-018CX34-25
XC14-024CX34-31
XC14-030CX34-31
XC14-036CX34-38
XC14-041CX34-49
XC14-042CX34-49
XC14-047CX34-62C
XC14-048CX34-62C
XC14-060CX34-62C
Indoor Unit
Model No
*tXV SUBSTITUTIONS
Indoor Coils/Air Handlers with factory installed expansion
valves that require eld replacement
Model No.Indoor Coil or Air
Handler
XC14-030CBX27UH-03637L51
XC14-036CX34-3139L72
XC14-036CX34-3639L72
XC14-036CX34-3839L72
XC14-036CX34-4939L72
XC14-036CX34-50/6039L72
XC14-036CBX32M-03039L72
XC14-036CBX32M-03639L72
XC14-036CBX32M-04239L72
XC14-036CBX32M-04839L72
XC14-036CBX32MV-03639L72
XC14-036CBX32MV-04839L72
XC14-036CBX40UHV-03639L72
XC14-036CBX40UHV-04839L72
XC14-042CX34-3639L72
XC14-042CX34-3839L72
XC14-042CBX27UH-04839L72
XC14-042CBX32M-03639L72
XC14-042CBX32M-04239L72
XC14-042CBX32M-04839L72
XC14-042CBX32MV-04839L72
XC14-042CBX40UHV-04839L72
XC14-048CX34-4391M02
XC14-048CX34-44/4891M02
* CX34 coils and all air handlers (except CB26UH “R”) - the factory installed
expansion valve must be replaced with the expansion valve listed (ordered
separately). If the combination is not listed above, the factory installed TXV is
used.
C33 and CH33 coils and CB26UH “R” air handlers - use the RFC shipped with
the outdoor unit or replace the factory installed RFC with the expansion valve
listed in the Thermal Expansion Valves Table.
CR33 and CH23 - use the RFC shipped with the outdoor unit or use the expansion valve listed in the Thermal Expansion Valves Table.
Order No.
XC14 - 1.5 to 5 Ton Air Conditioner / Page 10
AHRI SYSTEM MATCHES
NOTE - For the latest up-to-date system matches please visit the AHRI web site at http://www.ahridirectory.org
TXV = Matched with Thermostatic Expansion Valve.
RFC = Matched with RFC metering device.
Ratings are certied in accordance with USE certication program which is based on AHRI Standard 210/240; 95°F outdoor air temperature, 80°F db / 67°F wb entering
evaporator air with 25 ft. of connecting refrigerant lines.
All ratings include the use of a blower time delay relay (TDR). All Lennox variable-speed furnaces and Air Handlers have time delay capabilities. Other Furnaces and Air
Handlers may require an optional time delay relay (58M81) for eld installation. See furnace or air handler specications to determine if relay is needed.
Also see Expansion Valve Kit Usage Table.
Expansion
Device
Capacity SEEREER
Coil or
Air Handler
Furnace
AHRI
Reference
XC14 - 1.5 to 5 Ton Air Conditioner / Page 11
AHRI SYSTEM MATCHES
NOTE - For the latest up-to-date system matches please visit the AHRI web site at http://www.ahridirectory.org
TXV = Matched with Thermostatic Expansion Valve.
RFC = Matched with RFC metering device.
Ratings are certied in accordance with USE certication program which is based on AHRI Standard 210/240; 95°F outdoor air temperature, 80°F db / 67°F wb entering
evaporator air with 25 ft. of connecting refrigerant lines.
All ratings include the use of a blower time delay relay (TDR). All Lennox variable-speed furnaces and Air Handlers have time delay capabilities. Other Furnaces and Air
Handlers may require an optional time delay relay (58M81) for eld installation. See furnace or air handler specications to determine if relay is needed.
Also see Expansion Valve Kit Usage Table.
Expansion
Device
Capacity SEEREER
Coil or
Air Handler
Furnace
AHRI
Reference
XC14 - 1.5 to 5 Ton Air Conditioner / Page 12
AHRI SYSTEM MATCHES
NOTE - For the latest up-to-date system matches please visit the AHRI web site at http://www.ahridirectory.org
TXV = Matched with Thermostatic Expansion Valve.
RFC = Matched with RFC metering device.
Ratings are certied in accordance with USE certication program which is based on AHRI Standard 210/240; 95°F outdoor air temperature, 80°F db / 67°F wb entering
evaporator air with 25 ft. of connecting refrigerant lines.
All ratings include the use of a blower time delay relay (TDR). All Lennox variable-speed furnaces and Air Handlers have time delay capabilities. Other Furnaces and Air
Handlers may require an optional time delay relay (58M81) for eld installation. See furnace or air handler specications to determine if relay is needed.
Also see Expansion Valve Kit Usage Table.
Expansion
Device
Capacity SEEREER
Coil or
Air Handler
Furnace
AHRI
Reference
XC14 - 1.5 to 5 Ton Air Conditioner / Page 13
AHRI SYSTEM MATCHES
NOTE - For the latest up-to-date system matches please visit the AHRI web site at http://www.ahridirectory.org
TXV = Matched with Thermostatic Expansion Valve.
RFC = Matched with RFC metering device.
Ratings are certied in accordance with USE certication program which is based on AHRI Standard 210/240; 95°F outdoor air temperature, 80°F db / 67°F wb entering
evaporator air with 25 ft. of connecting refrigerant lines.
All ratings include the use of a blower time delay relay (TDR). All Lennox variable-speed furnaces and Air Handlers have time delay capabilities. Other Furnaces and Air
Handlers may require an optional time delay relay (58M81) for eld installation. See furnace or air handler specications to determine if relay is needed.
Also see Expansion Valve Kit Usage Table.
Expansion
Device
Capacity SEEREER
Coil or
Air Handler
Furnace
AHRI
Reference
XC14 - 1.5 to 5 Ton Air Conditioner / Page 14
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