Compressor − limited warranty for ten years in
residential installations and five years in non-residential
installations.
All other covered components − five years in
residential installations and one year in non-residential
installations.
Refer to Lennox Equipment Limited Warranty certificate
included with unit for specific details.
Approvals
Certified in accordance with USE certification program
which is based on ARI Standard 210/240−2005.
Sound rated in Lennox reverberant sound test room in
accordance with test conditions included in ARI Standard
270−95.
Tested in the Lennox Research Laboratory environmental
test room.
Rated according to U.S. Department of Energy (DOE) test
procedures.
Heat pumps and components within bonded for
grounding to meet safety standards for servicing required
by UL and CEC.
Units are UL and ULC listed.
ISO 9001 Registered Manufacturing Quality System.
NERGY STAR® certified units are designed to use less
E
energy, help save money on utility bills, and help protect
the environment.
ApplicationS
SEER up to 17.0.
Heating COP up to 3.82.
HSPF (region IV) up to 8.70.
2 through 5 ton.
Single phase power supply.
Sound levels as low as 74 dB.
Vertical air discharge allows concealment behind shrubs
at grade level or out of sight on a roof.
Designed for applications with remotely located indoor air
handlers or add−on indoor coils with FM21
furnace control. See FM21
Also see Indoor Coils and Air Handlers sections for indoor
unit data.
Units shipped completely factory assembled, piped, and
wired. Each unit is test operated at the factory insuring
proper operation.
Installer must set heat pump, connect refrigerant lines,
and make electrical connections to complete job.
For expanded ratings, see www.lennoxdavenet.com.
®
bulletin, Controls section.
®
dual fuel
B
J
C
I
D
H
G
F
E
L
M
REFRIGERATION SYSTEM
Refrigerant
Non−chlorine, ozone friendly, R−410A.
Unit is factory pre−charged. See
Specification table.
Total system refrigerant charge is dependant on outdoor
unit size, indoor unit size and refrigerant line length. Refer
to charging procedures in the Installation Instructions to
determine correct amount of charge required.
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.
K
XP16 − 2 to 5 Ton Heat Pump / Page 2
Page 3
FEATURES
REFRIGERATION SYSTEM (CONTINUED)
Copper Tube/Enhanced Fin Coil
C
Lennox designed and fabricated coil.
Ripple−edged aluminum fins.
Copper tube construction.
Lanced fins provide maximum exposure of fin surface to
air stream resulting in excellent heat transfer.
Fin collars grip tubing for maximum contact area.
Inverted coil circuiting prevents ice buildup at coil base in
low ambients. Discharge gas enters bottom of coil during
defrost and heat of refrigerant flows counter to water
drainage resulting in extremely clean and unobstructed
fins and tubes.
Fin spacing allows rapid and complete water drainage.
Flared shoulder tubing connections/silver soldering
construction.
Coil is factory tested under high pressure to insure
leakproof construction.
Entire coil is accessible for cleaning.
Expansion Valve − Outdoor Unit
D
Designed and sized specifically for use in heat pump
system.
Sensing bulb is located on the line between reversing valve
and the coil thus sensing suction temperature in any cycle.
Factory installed and piped.
Discharge Temperature Switch
Shuts off unit if operating conditions cause the
compressor discharge line temperature to rise above
setpoint.
Protects compressor from excessive pressure /
temperature.
Automatic reset when temperature drops below setpoint.
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.
Low Pressure Switch
F
Shuts off unit if suction pressure falls below setting.
Provides loss of charge and freeze-up protection.
Automatic reset.
Hi-Capacity Liquid Line Drier
G
Factory installed in the liquid line, the drier traps moisture
or dirt that could contaminate the refrigerant system.
100% molecular−sieve bead type drier.
Reversing Valve
H
4-way interchange reversing valve effects a rapid change
in direction of refrigerant flow resulting in quick
changeover from cooling to heating and vice versa.
Valve operates on pressure differential between outdoor
unit and indoor unit of the system. Factory installed.
OPTIONS
Expansion Valve Kits
Must be ordered extra and field installed on certain indoor
units. See ARI Ratings tables.
Chatleff style fitting.
Freezestat
Installs on or near the discharge line of the evaporator 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.
Refrigerant Line Kits
Refrigerant lines (suction & liquid) are shipped
refrigeration clean. Lines are cleaned, dried, pressurized,
and sealed at factory.
Suction line fully insulated.
L15 lines are stubbed at both ends.
See Specifications table for selection.
Not available for −060 model and must be field fabricated.
COMPRESSOR
Copeland Scroll Ultra Techt Two−Stage Compressor
I
Compressor features high
efficiency with uniform
suction flow, constant
discharge flow and high
volumetric efficiency 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
Slider Ring
Fixed scroll
efficiency.
Scroll compressor is tolerant to the effects of slugging
and contaminants. If this occurs, scrolls separate,
allowing liquid or contaminants to to be worked toward
the center and discharged.
On the fixed scroll there are two bypass ports in the first
suction pocket. On the outside of the fixed scroll there is a
slider ring" that is controlled by an internal solenoid that
will rotate and cover the bypass ports. When the
thermostat calls for first−stage cooling, the bypass ports
are open and the compressor operates at 67% capacity,
creating more cost−effective and efficient compressor
operation. The bypassed refrigerant is returned to the
compressor housing through the bypass ports. When
the thermostat calls for second−stage cooling, the
internal solenoid is energized, the slider ring rotates and
covers the bypass ports, and the compressor operates
at full capacity.
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 mounts for better sound
dampening and vibration free operation.
Internal solenoid
XP16 − 2 to 5 Ton Heat Pump / Page 3
Slider
Ring
Internal
solenoid
of the fixed scrolls. During
compression, several
pockets are compressed
simultaneously resulting in
a smooth continuous
compression cycle.
Continuous flank contact,
maintained by centrifugal
force, minimizes gas
leakage and maximizes
Page 4
FEATURES
COMPRESSOR (CONTINUED)
Crankcase Heater
Crankcase heater prevents migration of liquid refrigerant
into compressor and ensures proper compressor
lubrication.
CONTROLS
Defrost Control
J
Solid-state control furnished as standard.
Gives a demand defrost cycle whenever system heating
performance falls below optimum levels. The sensing
element on coil determines when defrost cycle is required
and when to terminate cycle.
Anti−short cycle (5 minutes) incorporated into the board.
Diagnostic LED’s furnished as an aid in troubleshooting.
Conveniently located in control box.
OPTIONS
ComfortSenset 7000 Touchscreen Thermostat
Electronic 7−day, universal,
multi−stage, programmable,
touchscreen thermostat.
4 Heat/2 Cool.
Auto−changeover.
Controls humidity during
cooling mode.
Offers enhanced
capabilities including
humidification / dehumidification / dewpoint measurement
and control, Humiditrol
maintenance reminders.
Easy−to−use, menu driven thermostat with a back−lit, LCD
touchscreen.
Remote outdoor temperature sensor (optional) allows the
thermostat to display outdoor temperature. Required in
dual fuel and Humiditrol
See the ComfortSenset 7000 Engineering Handbook
bulletin in the Controls section for more information.
Compressor Hard Start Kit
Single−phase units are equipped with a PSC compressor
motor.
This type of motor normally does not need a potential
relay and start capacitor.
In conditions such as low voltage, kit may be required to
increase the compressor starting torque.
Hard start kit is required in applications where the supply
voltage is less than 230V.
Indoor Blower Off Delay Relay
Delays the indoor blower−off time during the cooling cycle.
See ARI Rating Tables for usage.
Indoor Blower Speed Relay Kit
Relay kit provides optimum humidity control conditions by
automatically reducing indoor blower speed during
continuous fan or first−stage compressor operation.
Low Ambient Kit
Heat pump will operate in the cooling mode satisfactorily
down to 45_F outdoor air temperature without any additional
controls.
Kit can be added in the field enabling unit to operate
properly down to 30_F.
A Freezestat should be installed on compressors
equipped with a low ambient kit.
A Compressor Low Ambient Cut−Off should be added to
terminate compressor operation below recommended
operation conditions (on/off operation, 30°F or modulating
operation, 0°F.
®
control, and equipment
®
applications.
Mild Weather Kit
Heat pump units operate satisfactorily in the heating
mode at outdoor air temperatures up to 75_F.
Mild Weather Kit can be field installed, allowing heating
operation above 75_F.
Monitor Kit − Service Light
Contains ambient compensating thermistor and service
light thermostat.
For use with thermostats requiring input for indicator
lights.
Outdoor Thermostat Kit
An outdoor thermostat can be used to lock out some of the
electric heating elements on indoor units where two−stage
control is applicable.
Outdoor thermostat maintains the heating load on the low
power input as long as possible before allowing the full
power load to come on the line.
Thermostat kit and mounting box must be ordered extra.
Cabinet
K
Heavy−gauge steel construction
Pre−painted cabinet finish.
Pre−painted base section.
Control box is conveniently located with all controls
factory wired.
Large removable panel provides service access.
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.
SmartHinget Louvered Coil Protection
L
Steel louvered panels
provides complete coil
protection.
Panels are hinged to
allow easy cleaning
and servicing of coils.
Panels may be
completely removed.
Interlocking tabs and
slots assure tight fit on
cabinet.
Refrigerant Line Connections, Electrical Inlets and
Service Valves
Vapor 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
M
and provide access to refrigerant system. Vapor valve can
be fully shut off, while liquid valve may be front seated to
manage refrigerant charge while servicing system.
Refrigerant line connections and field wiring inlets are
located in one central area of the cabinet. See dimension
drawing.
Service clearance of 30 in. (762 mm) must be maintained on one
of the sides adjacent to the control box.
Clearance to one of the other three sides must be 36 in. (914 mm).
See
NOTES
See
NOTES
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.
See NOTES
Control
Box
48 in. (1219 mm) clearance required on top of unit.
OUTDOOR SOUND DATA
1
Unit
Octave Band Sound Power Levels dBA, re 10
.
63
1252505001000200040008000
Center Frequency − HZ
−12
Watts
XP16-02479.072.070.069.568.563.558.056.574
XP16-03680.570.571.571.068.563.558.553.576
XP16-04881.072.571.573.070.566.060.558.576
XP16-06080.572.573.577.572.567.062.558.578
NOTE − the octave sound power data does not include tonal correction.
1
Tested according to ARI Standard 270-95 test conditions.
1
Sound
Rating
(dB)
FIELD WIRING
DISCONNECT
SWITCH
(By Others)
A
OPTIONAL
OUTDOOR
THERMOSTAT
LENNOX
OUTDOOR
UNIT
OPTIONAL
ELECTRIC
HEAT
LENNOX
INDOOR UNIT
B
DISCONNECT
SWITCH
(By Others)
THERMOSTAT
(Optional)
CD
A Two Wire Power (see Electrical Data)
B Two or Three Wire Power (size to heater capacity)
C Twelve Wire Low Voltage 18 ga. minimum
Fourteen Wire Low Voltage with Optional Outdoor Thermostat
D Eight Wire Low Voltage 18 ga. minimum
Ten Wire Low Voltage with Optional Outdoor Thermostat
Field Wiring Not Furnished
All wiring must conform to NEC or CEC and local electrical codes.
XP16 − 2 to 5 Ton Heat Pump / Page 7
Page 8
ARI RATINGS − INDOOR COIL / AIR HANDLER SUBSTITUTION
Substituting Coils in the ARI Tables
Most R−22 and R−410A indoor coils and air handlers are
the same except for the factory installed expansion
device. C33 coils can be used in place of the CX34 coils,
CB26UH−R, CB27UH, and CB30M air handlers can be
used in place of the CBX26UH, CBX27UH, CBX32M and
CBX32MV, respectively.
UP−FLOW COILS
R−410AR−22
CX34−18/24A−6F
CX34−18/24B−6F=
CX34−18/24C−6F=
CX34−19A−6F
CX34−25A−6F
CX34−25B−6F
CX34−30A−6F
CX34−30B−6F
CX34−30C−6F
CX34−31A−6F
CX34−31B−6F
CX34−36A−6F
CX34−36B−6F
CX34−36C−6F
CX34−38A−6F
CX34−38B−6F
CX34−42B−6F=C33−42B−2
CX34−43B−6F=C33−43B−2
CX34−43C−6F=C33−43C−2
no equivalent
CX34−44/48B−6F
CX34−44/48C−6F
CX34−49C−6F
CX34−50/60C−6F
CX34−60D−6F
CX34−62C−6F
CX34−62D−6F
=
C33−24A−2
C33−24B−2
C33−24C−2
=
C33−19A−2
=
C33−25A−2
=
C33−25B−2
=
C33−30A−2
=
C33−30B−2
=
C33−30C−2
=
C33−31A−2
=
C33−31B−2
=
C33−36A−2
=
C33−36B−2
=
C33−36C−2
=
C33−38A−2
=
C33−38B−2
C33−44C−2
=
C33−48B−2
=
C33−48C−2
=
C33−49C−2
=
C33−50/60C−2
=
C33−60D−2
=
C33−62C−2
=
C33−62D−2
The expansion device is based on the size of the outdoor
unit. The factory installed RFC or TXV on the
C33/CB26UH−R/CB27UH/CB30M must be replaced to
correspond to the outdoor unit. The correct TXV’s are:
2−3 ton heat pumps49L24
4−5 ton heat pumps91M02
Example:
A four−ton heat pump is being installed. The ARI table
shows that CBX32M−048 is a matching air handler. A
CB30M−51 with a 91M02 TXV can be used in its place.
NOTE − When used with gas furnaces, a dual−fuel control (i.e. FM21) or a control system with dual−fuel capabilities (i.e. Harmony III, LZP−2 or LZP−4) must be used (ordered extra).
1
Certified in accordance with USE certification program which is based on ARI Standard 210/240 with 25 ft. of connecting refrigerant lines;
Cooling Ratings − 95_F outdoor air temperature and 80_F db/67_F wb entering indoor coil air.
High Temperature Heating Ratings − 47_F db/43_F wb outdoor air temperature and 70_F db entering indoor coil air.
Low Temperature Heating Ratings − 17_F db/15_F wb outdoor air temperature and 70_F db entering indoor coil air.
2
Factory installed expansion valve or RFC on indoor unit MUST be replaced with valve specified (if equipped).
3
Blower must be capable of time−off blower delay. Indoor Blower Off Delay Relay (58M81) is recommend for field installation.
4
Blower control must be set for a time−off blower delay.
NOTE − When used with gas furnaces, a dual−fuel control (i.e. FM21) or a control system with dual−fuel capabilities (i.e. Harmony III, LZP−2 or LZP−4) must be used (ordered extra).
1
Certified in accordance with USE certification program which is based on ARI Standard 210/240 with 25 ft. of connecting refrigerant lines;
Cooling Ratings − 95_F outdoor air temperature and 80_F db/67_F wb entering indoor coil air.
High Temperature Heating Ratings − 47_F db/43_F wb outdoor air temperature and 70_F db entering indoor coil air.
Low Temperature Heating Ratings − 17_F db/15_F wb outdoor air temperature and 70_F db entering indoor coil air.
2
Factory installed expansion valve or RFC on indoor unit MUST be replaced with valve specified (if equipped).
3
Blower must be capable of time−off blower delay. Indoor Blower Off Delay Relay (58M81) is recommend for field installation.
4
Blower control must be set for a time−off blower delay.
NOTE − When used with gas furnaces, a dual−fuel control (i.e. FM21) or a control system with dual−fuel capabilities (i.e. Harmony III, LZP−2 or LZP−4) must be used (ordered extra).
1
Certified in accordance with USE certification program which is based on ARI Standard 210/240 with 25 ft. of connecting refrigerant lines;
Cooling Ratings − 95_F outdoor air temperature and 80_F db/67_F wb entering indoor coil air.
High Temperature Heating Ratings − 47_F db/43_F wb outdoor air temperature and 70_F db entering indoor coil air.
Low Temperature Heating Ratings − 17_F db/15_F wb outdoor air temperature and 70_F db entering indoor coil air.
2
Factory installed expansion valve or RFC on indoor unit MUST be replaced with valve specified (if equipped).
3
Blower must be capable of time−off blower delay. Indoor Blower Off Delay Relay (58M81) is recommend for field installation.
4
Blower control must be set for a time−off blower delay.
Up−Flow Indoor Coils + FurnacesContinued on Next Page
NOTE − When used with gas furnaces, a dual−fuel control (i.e. FM21) or a control system with dual−fuel capabilities (i.e. Harmony III, LZP−2 or LZP−4) must be used (ordered extra).
1
Certified in accordance with USE certification program which is based on ARI Standard 210/240 with 25 ft. of connecting refrigerant lines;
Cooling Ratings − 95_F outdoor air temperature and 80_F db/67_F wb entering indoor coil air.
High Temperature Heating Ratings − 47_F db/43_F wb outdoor air temperature and 70_F db entering indoor coil air.
Low Temperature Heating Ratings − 17_F db/15_F wb outdoor air temperature and 70_F db entering indoor coil air.
2
Factory installed expansion valve or RFC on indoor unit MUST be replaced with valve specified (if equipped).
3
Blower must be capable of time−off blower delay. Indoor Blower Off Delay Relay (58M81) is recommend for field installation.
4
Blower control must be set for a time−off blower delay.
NOTE − When used with gas furnaces, a dual−fuel control (i.e. FM21) or a control system with dual−fuel capabilities (i.e. Harmony III, LZP−2 or LZP−4) must be used (ordered extra).
1
Certified in accordance with USE certification program which is based on ARI Standard 210/240 with 25 ft. of connecting refrigerant lines;
Cooling Ratings − 95_F outdoor air temperature and 80_F db/67_F wb entering indoor coil air.
High Temperature Heating Ratings − 47_F db/43_F wb outdoor air temperature and 70_F db entering indoor coil air.
Low Temperature Heating Ratings − 17_F db/15_F wb outdoor air temperature and 70_F db entering indoor coil air.
2
Factory installed expansion valve or RFC on indoor unit MUST be replaced with valve specified (if equipped).
3
Blower must be capable of time−off blower delay. Indoor Blower Off Delay Relay (58M81) is recommend for field installation.
4
Blower control must be set for a time−off blower delay.
5
Most popular air handler combination.
Indoor Unit Model No.
3
CH33−60D−2F
3
CH33−62D−2F
3
CH23−68
Device
4
G60UHV−60D−135Factory TXV
4
G61MPV−60D−135 Factory TXV
4
G71MPP−60D−135 Factory TXV
4
G61MPV−60C−090 Factory TXV
4
G71MPP−60C−090 Factory TXV
4
G60UHV−60C−110Factory TXV
4
G60UHV−60C−090Factory TXV
4
G61MPV−60C−110Factory TXV
4
G71MPP−60C−110Factory TXV
4
G60UHV−60D−135Factory TXV
4
G61MPV−60C−090 Factory TXV
4
G71MPP−60C−090 Factory TXV
2
91M02
2
91M02
4
G61MPV−60D−135
4
G71MPP−60D−135
4
G61MPV−60C−110
4
G71MPP−60C−110
4
G61MPV−60C−090
4
G71MPP−60C−090
4
G60DFV−60D−135
4
G60DFV−60C−110
4
G60DFV−60C−090
4
G61MPV−60D−135
4
G71MPP−60D−135
4
G61MPV−60D−135
4
G71MPP−60D−135
4
G60UHV−60D−135
4
G60UHV−60D−135
2
91M02
2
91M02
2
91M02
2
91M02
2
91M02
2
91M02
2
91M02
2
91M02
2
91M02
2
91M02
2
91M02
2
91M02
2
91M02
2
91M02
2
91M02
2
91M02
2
91M02
2
91M02
XP16 − 2 to 5 Ton Heat Pump / Page 13
Page 14
REVISIONS
SectionsDescription of Change
ARI RatingsNew rating for XP16−048 with CX34−62D coil and CX34−62D coils with furnaces.
ARI RatingsRemoved CB30U ratings
ARI RatingsAdd ratings with G71MPP furnaces.
Page 15
Page 16
Visit us at www.lennox.com
For the latest technical information, www.lennoxdavenet.com
Contact us at 1−800−4−LENNOX
NOTE − Due to Lennox’ ongoing committment to quality, Specifications, Ratings and Dimensions subject to change without notice and without incurring liability.
Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury.
Installation and service must be performed by a qualified installer and servicing agency.