Lennox SLP98UHV SERIES User manual

GAS FURNACES
SLP98UHV
DAVE LENNOX SIGNATURE®COLLECTION
Upow / Horizontal - Variable Capacity - Variable Speed Blower
Bulletin No. 210577
July 2012
Supersedes February 2012
AFUE - Up To 98.2%
Input - 66,000 to 132,000 Btuh
Nominal Add-on Cooling - 2 to 5 Tons
MODEL NUMBER IDENTIFICATION
SL P 98 UH 070 x V 36 B
Unit Type
SL = Dave Lennox Signature®Collection
Stages
P = Precise Comfort Technology™
Nominal Gas Heat Input
070 = 66,000 Btuh
090 = 88,000 Btuh
110 = 110,000 Btuh
135 = 132,000 Btuh
Blower
V = Variable Speed Blower Motor
Nominal Add-On Cooling Capacity
36 = 2-3.5 tons
48 = 4 tons
60 = 4-5 tons
Conguration
UH = Upow/Horizontal
1Indoor coils with the same letter designation will physically match the furnace.
1 Cabinet Width
B = 17-1/2 in.
C = 21 in.
D = 24-1/2 in.
AFUE
98 = 98%
Low NOx = Units meet California
Nitrogen Oxides standards
PRODUCT SPECIFICATIONS

SLP98UHV / Page 2
FEATURES
WARRANTY
Duralok Plus™ Aluminized Steel Heat Exchanger -
Limited lifetime warranty in residential applications
(twenty year transferable), ten years in non-residential
applications.
All Other Covered Components - Limited ten year
warranty in residential applications, one year in non-
residential applications.
Refer to Lennox Equipment Limited Warranty certicate
included with equipment for details.
APPROVALS
Units are certied by AHRI.
Units tested and rated according to US DOE test
procedures and FTC labeling regulations.
Blower data from unit tests conducted in Lennox
Laboratory air test chamber.
All models are approved by the California Energy
Commission and meet California Seasonal Efciency
requirements and California Nitrogen Oxides (NOx)
Standards.
EnErgy Star® certied units are designed to use less
energy, help save money on utility bills, and help protect
the environment.
ISO 9001 Registered Manufacturing Quality System
APPLICATIONS
Input capacities of 66,000, 88,000, 110,000 and
132,000 Btuh.
Variable heat capacity in increments as small as 1%
or as large as needed within minimum/maximum input
range.
Energy efciency up to (AFUE) 98.2%.
Compact cabinet for upow, horizontal-right or
horizontal-left applications without any internal
modications to the unit.
Variable speed blower ideal for zoning applications.
Lennox add-on indoor coils, high-efciency air cleaners
and humidiers can easily be added to furnace.
Shipped factory assembled with controls installed and wired.
Each unit factory test operated to ensure proper
operation.
NOTE - FURNACES CANNOT BE TWINNED!
Zoning Applications
The SLP98UHV furnace is designed to work with the
Lennox Harmony III™ zoning system with conventional
thermostats. Zoning system provides direct feedback to
the SLP98UHV, controlling both airow and heat output
to precisely match the comfort requirements for up to
four zones.
HEATING SYSTEM
SilentComfort™ Technology
Patented burner sound enclosure and extra cabinet
insulation reduces operating sound levels.
Lennox Duralok Plus™ Heat Exchanger Assembly
Lennox developed heat
exchanger assembly
consists of primary heat
exchanger and
secondary condenser
coil assembly.
Main multi-pass crimped
seam design clamshell
type heat exchanger.
Constructed of heavy-gauge, aluminized steel.
Designed for normal expansion and contraction with
maximum efciency and minimum resistance to air ow.
Secondary heat exchanger condenser coil constructed
of aluminum ns tted to stainless steel tubes.
Coil is factory tested for leaks.
Condensate drain header box assembly located on front
of coil.
Compact size of complete heat exchanger assembly
permits low overall design of furnace cabinet.
A
B
C
D
Contents
Blower Data ................................................................21
Dimensions - Horizontal Position................................15
Dimensions - Upow Position.....................................14
Features........................................................................2
Gas Heat Accessories ................................................11
Installation Clearances ................................................9
Model Number Identication.........................................1
Optional Accessories ..................................................11
Optional Accessory Dimensions .................................16
Specications..............................................................10
Vent Lengths...............................................................13
B
C
D
E
F
G
H
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SLP98UHV / Page 3
HEATING SYSTEM (CONTINUED)
Heat exchanger assembly has been laboratory life cycle
tested in excess of industry standards.
Lennox Designed Header Box
Header box on end of condenser coil collects ue
condensate for disposal through condensate drains.
The drains are located on each side of the cabinet for
easy eld installation of condensate drain trap.
Only one drain is used, the other drain is sealed.
Condensate drain trap is included with the unit for eld
installation.
Lennox Designed Flue Condensate Trap Assembly
Condensate trap assembly is mounted outside the
conditioned air stream.
Assembly can be mounted on either side of cabinet
in upow applications. Assembly is mounted below
the cabinet in horizontal applications. See Dimension
Drawing and Installation Instructions. Can also be
mounted remotely (up to 5 ft. away) from unit.
90° street elbow furnished for ease of drain trap
installation.
Drain connection can be made with eld provided PVC
pipe or PVC coupling.
Drain cap on trap allows easy cleaning and winterizing.
Inshot Burners
Aluminized steel inshot burners provide efcient,
trouble-free operation.
Burner venturi mixes air and gas in correct proportion
for proper combustion.
Burner assembly is removable from the unit as a single
component for ease of service.
Variable Capacity Gas Control Valve
Variable capacity gas control valve adjusts capacity
output in increments as small as 1% or as large as
needed. 24 volt redundant combination valve combines
manual shut off switch (On-Off), automatic electric
valve (dual) and gas pressure regulation into a compact
combination control.
Flame Rollout Switch
Manual reset switches are factory installed on burner box.
Switch provides protection from abnormal operating
conditions.
SureLight® Hot Surface Ignitor
Tough, reliable, long-life, trouble-free performance.
Silicon nitride ignitor.
Cemented to steatite block for protection against current
leakage.
Ignition leads are constructed of nickel plated copper
and are enclosed in high temperature Teon®insulation
for dependable operation.
E
F
FEATURES
Variable Speed Combustion Air Inducer
Three-phase variable speed inducer motor is controlled
by the SureLight Control.
Overload protected (auto-reset).
Heavy-duty blower prepurges heat exchanger and
safely vents ue products.
Operates only during heating cycle.
Pressure Switches (Two-Stage)
Prove Combustion Air Inducer operation before allowing
gas valve to open.
Limit Control
Automatic reset, primary limit is accurately located on
vestibule panel on all units.
OPTIONS
High Altitude Pressure Switch Kit
Required for proper unit operation on installations above
7500 ft.
Natural Gas to LPG/Propane Conversion Kit
Required for eld changeover from natural gas to LPG/
Propane. Includes gas valve and orices.
LPG/Propane to Natural Gas Conversion Kit
Required for eld changeover from LPG/Propane to
natural gas.
DIRECT VENT SEALED COMBUSTION
SYSTEM
Furnace features a “sealed combustion” system
and can only be installed in Direct Vent (two pipe)
applications.
In Direct Vent applications, combustion air is supplied
from outdoors and ue gases are discharged outdoors.
OPTIONS
Termination Kits
Facilitates installation of combustion air intake pipe and
ue exhaust pipe.
Refer to venting table in this bulletin to determine pipe
size needed and proper termination kit required.
See Optional Accessories table and dimension
drawings.
Termination Kit - Concentric
2 or 3 inch kit contains concentric termination
assembly, reducer bushing and 45° elbow.
2 inch kit for -070 model contains an outdoor exhaust
accelerator.
Kit requires single hole penetration of roof or wall for
installation.
Roof Termination Flashing Kit is available for use with
2 inch Kits.
CSA certied.
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SLP98UHV / Page 4
DIRECT VENT SEALED COMBUSTION
SYSTEM (CONTINUED)
options
Termination Kit - Flush-Mount
Kit contains ush-mount termination, accelerator,
mounting template and hardware.
Kit may be used with 2, 2-1/2 or 3 in. pipe.
Termination Kits - Wall Assembly
Close Couple (US Only)
2 or 3 inch kit consists of close-couple, side-by-side
PVC piping with galvanized steel wall cover plate for
sealing and isolating piping penetration of the wall.
Piping spacing and length is sized for proper wall
installations.
CSA certied.
Close Couple WTK (Canada Only)
2 or 3 inch kit contains one insulated faceplate, one
insulated exhaust pipe, elbow and ttings.
Wall Ring
2 inch kit contains 2 stainless steel outside seal caps,
2 galvanized steel inside seal caps, 4 seal rings for
the caps and 18 inch insulation sleeve for sealing and
isolating intake and exhaust piping penetration of wall.
Maintain a maximum of 6 inches between the inlet and
outlet openings in the installation of the pipes.
Roof Termination Flashing Kit
2 or 3 inch kit contains two neoprene rubber roof
ashings for vertical venting through a roof.
Vent pipe and insulation not furnished.
Also available for use with 2 inch (use 3 inch ashing)
Concentric Vent Termination Kits used in vertical
venting rooftop applications.
BLOWER
Variable Speed Direct Drive Blower
Each blower assembly statically and dynamically
balanced.
Change in blower speeds is easily accomplished by
simple DIP switch changes on the SureLight control.
See Blower Performance tables.
Blower assembly easily removed for servicing.
Variable Speed Blower Motor
Variable speed motor maintains specied air volume
from 0 though 0.8 in. w.g. (heating) and 0 through 1.0 in.
w.g. (Cooling) static range.
Variable speed operation is achieved by the use of an
ECM (Electronically Commutated Motor) motor.
Motor is controlled by the SureLight®Control.
Motor is equipped with ball bearings and is resiliently
mounted.
I
J
When furnaces are used with the Harmony III™ Zoning
System with conventional thermostats, blower motor
operates from predetermined minimum - maximum air
volumes to satisfy zone requirements.
CONTROLS
Surelight® Control (icomfort™ Compatible)
Advanced control communicates
information about various
operating parameters in the
furnace to the optional icomfort
Wi-Fi™ Thermostat to constantly
maintain the highest level of
comfort, performance and
efciency available.
Auto Conguration - On start-up
the control automatically sends
a description of the unit to the
optional icomfort™ Thermostat to automatically
congure the number of stages and features available.
Connections for connecting a conventional heating/
cooling thermostat are also provided on the control.
Control also features:
Innovative AirFlex™ technology allows custom blower
settings based on the application.
Precise Comfort Technology™ automatically adjusts
blower speed and heat input in increments as small
as 1% or as large as needed for greater temperature
control.
Variable-speed combustion air inducer is controlled by
the Surelight Control. Prior to ignition, a pre-purge cycle
for 15 seconds is initiated. After the main burners are
turned off, a post-purge cycle for 20 seconds is run.
Thermostat Control - Designed to operate in a variable
capacity mode. The unit will automatically adjust ring
rate based on demand and changing conditions. For
optimal performance, the use of a high-quality, digital
two-stage thermostat with adjustable settings for rst
stage/second stage, on/off differentials and adjustable
stage timers is recommended.
Furnace Input Staging Options
Thermostat Type Input Staging Available
icomfort™
Thermostats
Variable Capacity
(increments as small as 1%)
Four Stage (35, 60, 80, 100%)
Two-Stage
(Conventional)
Variable Capacity
(increments as small as 1%)
Two-stage (70% and 100%)
Single-Stage
(Conventional)
Three-Stage (35%, 70% and 100%)
SureLight® Ignition Control - Ignition control
continuously monitors line voltage and maintains the
igniter power at a constant level to provide consistent
lighting and maximum igniter life.
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FEATURES

SLP98UHV / Page 5
CONTROLS (CONTINUED)
Safety Controls - Flame sensor utilizes ame
rectication for safe and reliable operation.
Should ame fail to ignite, control will initiate 4 re-
attempts at ignition before locking out unit operation for
60 minutes.
Watchguard type circuit automatically resets ignition
controls after one hour of continuous thermostat demand
after unit lockout, eliminating nuisance calls for service.
Display LED - Seven segment LED displays alpha-
numeric information related to diagnostics as well
as system operation and status. Diagnostic codes
are held in non-volatile memory, immune from power
interruptions. Holds up to ten diagnostic codes in order
of occurrence for recall on demand. Port on blower door
allows for easy viewing.
DIP Switch Settings
(Note - DIP switches settings are not used with
icomfort™ thermostats)
Select Thermostat used - Single-Stage or Two-Stage.
Select Operation Mode - Two-Stage, Three-Stage or
Variable Capacity.
Two selectable second stage recognition times (7 and
12 minutes) are available on the control when the
furnace is used with a single-stage thermostat. When
used with a two-stage thermostat, furnace will only
initiate second stage operation with a second stage
thermostat demand.
Heating Speeds - A combination of DIP swtich settings
allow Normal, 7.5% increase, 15% increase, 7.5%
decrease or 15% decrease motor speed selection within
heating speed selected for ne tuning air volume. See
Blower Performance tables.
Cooling Speeds - A combination of DIP switch settings
allow Normal, 10% increase or 10% decrease motor
speed selection within cooling speed selected for ne
tuning air volume. See Blower Performance tables.
Blower Speed Ramping (Cooling Mode) - DIP switch
settings allow one of four blower speed proles during
cooling operation.
Prole A (factory setting) - Motor runs at 50% for 30
seconds, then at 82% for 7-1/2 minutes, then at 100%
(if needed) until demand is satised. Once demand is
met, motor runs at 50% for 30 seconds, then ramps
down to stop.
Prole B - Motor runs at 82% for 7-1/2 minutes and
then at 100% (if needed) until demand is satised. Once
demand is met,motor ramps down to stop.
Prole C - Motor runs at 100% until demand is
satised. Once demand is met, motor runs at 100% for
60 seconds, then ramps down to stop.
Prole D - Motor runs at 100% until demand is satised.
Once demand is met, motor ramps down to stop.
Dehumidication (Active or Humiditrol® Option) - A
jumper on the control control must be clipped to
enable active dehumidication and/or operation with
a Humiditrol® Whole-Home Dehumidication System.
A humidity controlling thermostat or device is also
required. During a call for cooling, air volume is
automatically reduced, forcing humidity removal by the
air conditioner or heat pump system. After the humidity
has reached the desired set-point the cooling air volume
returns to its designed rate. A dehumidication signal
from the thermostat reduces the cooling cfm to 70% of
the requested cooling cfm.
Dual-Fuel Operation - A jumper on the control must be
clipped to enable operation with a single or two-stage
heat pump. The indoor blower is started without delay
when a call for heat is received.
Two-Stage Compressor Operation - A jumper on the
control must be clipped to enable operation with a
two-stage compressor. The cooling blower speeds for
rst and second stage cooling will be dictated by the
applicable DIP switch settings.
Lennox System Operations Monitor Connection -
Monitors outdoor unit operation (communicating mode).
Blower On Time (Heating) - Blower on time is xed at
30 seconds, blower off time is adjustable from 60, 90,
120 and 180 seconds (factory setting - 90 seconds).
Blower Off Time (Cooling) - For air-conditioning
applications, blower on time is 2 seconds following
thermostat demand for cooling.
Blower off delay is 30 seconds at 50% of high cool cfm
(factory default).
Controls evaporator humidity by controlling blower and
compressor speed on two-stage outdoor units when
used with icomfort Wi-Fi™ or ComfortSense® 7000
thermostats.
Continuous Blower Speed - Adjustable continuous
blower speed is a percentage of the high cooling speed
selection. There are four selectable options (via DIP
switch settings) of 28%, 38% (default setting), 70% and
100%.
Accessory Terminals - Two accessory terminals
furnished for additional power supply requirements
for 120 volt (less than 1 amp) power humidiers and
powered air cleaners.
One 24 volt humidier output furnished for non-powered
humidiers.
Control is factory installed in the unit control box.
24 Volt Transformer
Furnished and factory installed in control box.
40VA transformer has circuit breaker wired in series.
Field Wiring Make-up Box
Furnished for line voltage wiring.
Factory installed internally on left side of furnace.
Box may be installed internally or externally on either
side of furnace.
FEATURES

SLP98UHV / Page 6
CONTROLS (CONTINUED)
OPTIONS
icomfort Wi-Fi™ Thermostat (part of the icomfort™
Residential Communicating Control System)
The icomfort Wi-Fi™ Thermostat recognizes
and connects to
all icomfort™-
enabled products
to automatically
congure and control
the heating/cooling
system (based
on user-specied
settings) for the
highest level of comfort, performance and efciency.
Also recognizes model and serial number information
for icomfort™-enabled products to simplify system
installation.
Wi-Fi remote temperature monitoring and adjustment
through a home wireless network for desktop PCs,
laptops and apps for smartphones or tablets. Service
alerts and reminders sent via text message or e-mail.
Dealer Dashboard features online real-time monitoring
of installed icomfort systems.
A simple easy-to-use touchscreen allows complete
system conguration. Scheduled maintenance alerts,
system warnings and troubleshooting are also displayed
on thermostat screen.
Easy to read 7 inch color screen (measured diagonally).
Conventional outdoor units (not icomfort™-enabled) can
easily be added and controlled by the icomfort Wi-Fi™
Thermostat.
Installer setup screens allow quick and simple system
conguration without a manual, Installer can also run
tests on complete system or individual components for
easy maintenance and troubleshooting.
Serial communications bus (RSBus), with less wiring
than a conventional heating/cooling system, allows
system communication. Uses 4-wire, 18-gauge
standard thermostat wiring.
See the icomfort Wi-Fi™ Thermostat Product
Specications bulletin in the Controls section for more
information.
FEATURES
ComfortSense® 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 humidication /
dehumidication / dewpoint
measurement and control,
Humiditrol®control, and
equipment 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®applications.
See the ComfortSense® 7000 Product Specications
bulletin in the Controls section for more information.
Outdoor Temperature Sensor
Used with icomfort™ thermostats
and ComfortSense®7000 thermostat.
When installed outdoors, sensor
allows thermostat to display outdoor
temperature. Sensor is auto-detected
when connected to thermostat.
NOTE - Sensor is required for
Humiditrol®applications.
Thermostat
Thermostat (icomfort™ thermostats or programmable/
non-programmable) is not furnished with unit.
See Thermostat bulletins in Controls Section and
Lennox Price Book for selection.
OPTIONS
Night Service Kit
Contains most commonly used service parts:
• Furnace control
• Ignitor
• Flame sensor
• Gas valve
• Transformer
• Service Manual
Universal Service Kit - Switches
Kit contains:
• Primary limits (for each model)
• Pressure switches (for each model)
• Flame rollout switches (for each model)
INDOOR RH 26%
WED AN 21 12:35AM
MODE
ON
AUTO
HOME SCHEDULE OPTIONS
SET AT
SET AT
HEAT
COOL
SCHED

SLP98UHV / Page 7
CABINET
Low-prole, narrow width cabinet allows easy
installation in upow or horizontal applications.
Heavy-gauge, cold rolled steel construction.
Pre-painted cabinet nish.
Flanges provided on supply air opening for ease of
plenum connection or alignment with indoor coil.
Fully insulated cabinet with foil faced insulation on sides
and back of heating compartment and sealed mat faced
insulation in blower compartment.
Sealed blower compartment. Inner blower compartment
access panel seals blower compartment from air leakage.
Complete service access.
Safety interlock switch automatically shuts off power to
unit when inner blower compartment access panel is
removed.
Gas piping and electrical inlets are provided in both
sides of cabinet.
Return Air Entry:
For bottom/end return-air entry, remove furnished
bottom seal panel from cabinet.
For side return-air entry (upow applications only),
corners are marked on either side of cabinet for return
air cut-outs.
On furnaces with side return air and condensate trap on
the same side of the cabinet, a eld fabricated transition
or optional Return Air Base is required when using an
IAQ product higher than 14-3/16 in. installed next to the
unit and serviced from the front. IAQ products higher
than 20 in. require a eld fabricated transition. See
dimension drawings.
NOTE - 60C and 60D size units that require air
volumes over 1800 cfm must have one of the
following:
1. Single side return air with transition, to
accommodate 20 x 25 x 1 in. cleanable air lter,
required to maintain proper air velocity.
2. Single side return air with optional Return Air Base.
3. Bottom return air.
4. Return air from both sides.
5. Bottom and one side return air.
See Blower Performance Tables for additional
information.
Coil Match-up
All furnaces exactly match C33 and CX34 cased upow
indoor coils and CH33 horizontal indoor coils with same
letter designation in model number. No adaptor required.
Engaging holes furnished on cabinet for alignment.
C33 uncased coils match furnaces without any
overhang but require an optional adaptor base or eld
fabricated transition to match furnace opening. See C33
coil bulletin for additional information.
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FEATURES
OPTIONS
Condensate Drain Heat Cable Kits
Self-limiting wattage heat cable prevents condensate
drain from freezing in unconditioned areas.
Available in 6, 24 or 50 ft. lengths.
Heat Cable Tape:
66 ft. length, 1/2 in. wide berglass.
60 ft. length, 2 in. wide aluminum foil.
Crawl Space Vent Drain Kit
Allows venting through a crawl space for upow and
horizontal applications.
Includes 2 or 3 in. sanitary tee, 2 in. PVC assembly,
PVC boot and clamp.
Horizontal Suspension Kit
Provides suspension of unit and indoor coil in horizontal
applications.
Allows complete service access.
Consists of corner mounted hanging brackets with
vibration isolators, return air end support rail and
hardware for assembly.
Metal hanging straps must be eld provided.
Return Air Base
On furnaces with side return air and condensate trap on
the same side of the cabinet, a eld fabricated transition
or Return Air Base is required when using an IAQ
product higher than 14-3/16 in. installed next to the unit
and serviced from the front.
IAQ products higher than 20 in. require a eld fabricated
transition.
Must be used for 60C and 60D models with air volumes
over 1800 cfm in upow applications when only one
side return is required.
Cabinet is shipped at for easy eld assembly and is
pre-painted steel to match the furnace.
Gasketed for tight seal.
See Dimension Drawing.

SLP98UHV / Page 8
FEATURES
FILTER (NOT FURNISHED)
Filter and provisions for external mounting must be eld
provided.
OPTIONS
Air Filter and Rack Kit for Horizontal Return Air
(End) Applications
Washable or vacuum cleanable polyurethane frame
type lter and external end return air rack available for
eld installation.
Rack has lter door for easy lter servicing.
Flanges on rack allow easy duct connection.
See dimension drawing.
Air Filter and Rack Kit for Upow Side Return Air
Applications - Not for use with Return Air Base
Washable or vacuum cleanable polyurethane frame
type lter and external side return air rack available for
eld installation.
Available in single and ten pack kits.
Rack has lter door for easy lter servicing.
Flanges on rack allow easy duct connection.
Field installs on either side of unit cabinet. See
dimension drawing.
INDOOR AIR QUALITY
See Indoor Air Quality section and Lennox Price Book
for a complete list of indoor air quality products (air
purication systems, high efciency air lters and lter
cabinets, UV lights, humidiers, fresh air ventilation
system and heat/energy recovery systems).
INSTALLATION CLEARANCES
Sides 10 inches (0 mm)
Rear 0 inches (0 mm)
Top/Plenum 1 inch (25 mm)
Front 0 inches (0 mm)
Front (service/alcove) 24 inches (610 mm)
Floor 2Combustible
NOTE - Air for combustion must conform to the methods outlined in the National Fuel Gas Code (NFPA 54/ANSI-
Z223.1) or the National Standard of Canada CAN/CSA-B149.1 “Natural Gas and Propane Installation
Code”.
NOTE - In the U.S. ue sizing must conform to the methods outlined in the current National Fuel Gas Code (NFPA
54/ANSI-Z223.1) or applicable provisions of local building codes. In Canada ue sizing must conform to
the methods outlined in National Standard of Canada CAN/CSA-B149.1.
1 Allow proper clearances to accommodate condensate trap and vent pipe installation.
2 Do not install the furnace directly on carpeting, tile, or other combustible materials other than wood ooring.

SLP98UHV / Page 9
SPECIFICATIONS
Gas
Heating
Performance
Model No. SLP98UH070XV36B SLP98UH090XV36C SLP98UH090XV48C
1 AFUE 97.0% 98.0% 97.5%
Maximum Input - Btuh 66,000 88,000 88,000
Output - Btuh 64,000 85,000 85,000
Temperature rise range - °F 50 - 80 60 - 90 50 - 80
Gas Manifold Pressure (in. w.g.)
Nat. Gas / LPG/Propane
3.5 / 10.0 3.5 / 10.0 3.5 / 10.0
Minimum Input - Btuh 23,000 31,000 31,000
Output - Btuh 22,000 30,000 30,000
Temperature rise range - °F 35 - 65 35 - 65 35 - 65
Gas Manifold Pressure (in. w.g.)
Nat. Gas / LPG/Propane
0.5 / 1.5 0.5 / 1.5 0.5 / 1.5
High static - in. w.g. 0.8 0.8 0.8
Connections
in.
Intake / Exhaust Pipe (PVC) 2 / 2 2 / 2 2 / 2
Gas pipe size IPS 1/2 1/2 1/2
Condensate Drain Trap (PVC pipe) - i.d. 3/4 3/4 3/4
with furnished 90° street elbow 3/4 slip x 3/4 Mipt 3/4 slip x 3/4 Mipt 3/4 slip x 3/4 Mipt
with eld supplied (PVC coupling) - o.d. 3/4 slip x 3/4 MPT 3/4 slip x 3/4 MPT 3/4 slip x 3/4 MPT
Indoor
Blower
Wheel nominal diameter x width - in. 10 x 9 10 x 9 11 x 11
Motor output - hp 1/2 1/2 3/4
Tons of add-on cooling 2 - 3 2 - 3.5 2.5 - 4
Air Volume Range - cfm 339 - 1365 520 - 1360 528 - 1770
Electrical Data Voltage (Maximum Amps) 120 volts - 60 hertz - 1 phase
Blower motor full load amps 7.7 7.7 10.1
Maximum overcurrent protection 15 15 15
Shipping Data lbs. - 1 package 138 155 165
NOTE - Filters and provisions for mounting are not furnished and must be eld provided.
1 Annual Fuel Utilization Efciency based on DOE test procedures and according to FTC labeling regulations. Isolated combustion system rating for non-weatherized
furnaces.
SPECIFICATIONS
Gas
Heating
Performance
Model No. SLP98UH090XV60C SLP98UH110XV60C SLP98UH135XV60D
1 AFUE 98.2% 97.5% 97.5%
Maximum Input - Btuh 88,000 110,000 132,000
Output - Btuh 85,000 106,000 128,000
Temperature rise range - °F 50 - 80 50 - 80 55 - 85
Gas Manifold Pressure (in. w.g.)
Nat. Gas / LPG/Propane
3.5 / 10.0 3.5 / 10.0 3.5 / 10.0
Minimum Input - Btuh 31,000 39,000 46,000
Output - Btuh 30,000 38,000 45,000
Temperature rise range - °F 35 - 65 35 - 65 35 - 65
Gas Manifold Pressure (in. w.g.)
Nat. Gas / LPG/Propane
0.5 / 1.5 0.5 / 1.5 0.5 / 1.5
High static - in. w.g. 0.8 0.8 0.8
Connections
in.
Intake / Exhaust Pipe (PVC) 2 / 2 2 / 2 2 / 2
Gas pipe size IPS 1/2 1/2 1/2
Condensate Drain Trap (PVC pipe) - i.d. 3/4 3/4 3/4
with furnished 90° street elbow 3/4 slip x 3/4 Mipt 3/4 slip x 3/4 Mipt 3/4 slip x 3/4 Mipt
with eld supplied (PVC coupling) - o.d. 3/4 slip x 3/4 MPT 3/4 slip x 3/4 MPT 3/4 slip x 3/4 MPT
Indoor
Blower
Wheel nominal diameter x width - in. 11 x 11 11 x 11 11 x 11
Motor output - hp 1 1 1
Tons of add-on cooling 3 - 5 3 - 5 3.5 - 5
Air Volume Range - cfm 375 - 2195 554 - 2125 634 - 2190
Electrical Data Voltage (Maximum Amps) 120 volts - 60 hertz - 1 phase
Blower motor full load amps 12.8 12.8 12.8
Maximum overcurrent protection 20 20 20
Shipping Data lbs. - 1 package 165 175 190
NOTE - Filters and provisions for mounting are not furnished and must be eld provided.
1 Annual Fuel Utilization Efciency based on DOE test procedures and according to FTC labeling regulations. Isolated combustion system rating for non-weatherized
furnaces.

SLP98UHV / Page 10
OPTIONAL ACCESSORIES - order separately
NOTE - FURNACES CANNOT BE TWINNED!
“B” Width
Models
“C” Width
Models
“D” Width
Models
CABINET ACCESSORIES
Horizontal Suspension Kit - Horizontal only 51W10 51W10 51W10
Return Air Base - Upow only 50W98 50W99 51W00
CONDENSATE DRAIN KITS
Condensate Drain Heat Cable 6 ft. 26K68 26K68 26K68
24 ft. 26K69 26K69 26K69
50 ft. 26K70 26K70 26K70
Heat Cable Tape Fiberglass - 1/2 in. x 66 ft. 36G53 36G53 36G53
Aluminum foil - 2 in. x 60 ft. 16P89 16P89 16P89
Crawl Space Vent Drain Kit 51W18 51W18 51W18
CONTROLS
icomfort Wi-Fi™ Thermostat 88W58 88W58 88W58
1 Remote Outdoor Temperature Sensor
(for dual fuel and Humiditrol®)
X2658 X2658 X2658
2 Discharge Temperature Sensor 88K38 88K38 88K38
ComfortSense® 7000 Thermostat Y2081 Y2081 Y2081
3 Remote Outdoor Temperature Sensor
(for dual fuel and Humiditrol)
X2658 X2658 X2658
FILTER KITS
4 Air Filter and
Rack Kit
Horizontal (end) Size of lter - in. 87L96 - 18 x 25 x 1 87L97 - 20 x 25 x 1 87L98 - 25 x 25 x 1
Side Return Single 44J22 44J22 44J22
Ten Pack 66K63 66K63 66K63
Size of lter - in. 16 x 25 x 1 16 x 25 x 1 16 x 25 x 1
NIGHT SERVICE KITS
Night Service Kit 65W78 65W78 65W78
Universal Service Kit - Switches 89W20 89W20 89W20
TERMINATION KITS
Direct Vent Applications Only. See Installation Instructions for specic venting information.
Termination Kits Concentric US - 2 in. 71M80 69M29 - - -
3 in. - - - 60L46 60L46
Canada - 2 in. 44W92 44W92 - - -
3 in. - - - 44W93 44W93
Flush-Mount 2, 2-1/2 or 3 in. 51W11 51W11 51W11
Wall - Close
Couple
US - 2 in. 22G44 - - - - - -
3 in. 44J40 44J40 44J40
Wall - Close
Couple WTK
Canada - 2 in. 30G28 - - - - - -
3 in. 81J20 81J20 81J20
Roof 2 in. 15F75 15F75 - - -
Wall Ring Kit 2 in. 15F74 15F74 - - -
Roof Termination Flashing Kit (2 ashings) 2 in. 44J41 44J41 44J41
1Remote Outdoor Sensor may be used with an icomfort™-enabled outdoor unit for a secondary (alternate) sensor reading. Sensor may also be used with a conven-
tional outdoor unit.
2Optional for service diagnostics.
3Remote Outdoor Temperature Sensor for ComfortSense 7000 Thermostat must be connected directly to the thermostat, Do not connect it to the icomfort™ control.
4 Cleanable polyurethane frame type lter.
NOTE - Termination Kits 44W92, 44W93, 30G28, 81J20 are certied to ULC S636 standard for use in Canada only.
GAS HEAT ACCESSORIES
Input High Altitude
Pressure Switch Kit
Natural Gas to
LPG/Propane Kit
LPG/Propane to
Natural Gas Kit
7501 - 10,000 ft. 0 - 10,000 ft. 0 - 10,000 ft.
All models 80W68 65W77 70W87

SLP98UHV / Page 11
OUTDOOR TERMINATION KIT USAGE
Input
Size
Vent
Pipe
Diameter
(in.)
Standard Terminations Concentric Terminations
Flush
Mount
Kit
Wall Kit Wall Ring
Kit
Field
Fabricated
Exhaust
Accelerator
Size
Required
Concentric Kit
1-1/2 inch 2 inch 3 inch
2 inch 3 inch 2 inch
51W11 22G44 (US)
4 30G28 (CA)
44J40 (US)
4 81J20 (CA) 15F74 71M80 (US) 4 44W92 (CA)
69M29 (US)
4 44W92 (CA)
60L46 (US)
4 44W93 (CA)
070
23YES YES 1YES YES 1-1/2 in. 2YES - - - - - -
2-1/2 3YES YES 1YES YES 1-1/2 in. 2YES - - - - - -
33YES YES 1YES YES 1-1/2 in. 2YES - - - - - -
090
23YES - - - YES 1YES 2 in. - - - YES YES
2-1/2 3YES - - - YES 1YES 2 in. - - - YES YES
33YES - - - YES 1YES 2 in. - - - YES YES
110
2 YES - - - YES YES 2 in. - - - YES YES
2-1/2 YES - - - YES - - - 2 in. - - - YES YES
3 YES - - - YES - - - 2 in. - - - YES YES
135 3 YES - - - YES - - - 2 in. - - - - - - YES
NOTE - Standard Terminations do not include any vent pipe or elbows external to the structure.
Any vent pipe or elbows external to the structure must be included in total vent length calculations. See Vent Length Tables.
1 Requires eld provided 1-1/2 in. outdoor exhaust accelerator.
2Concentric Kits 71M80 and 44W92 include 1-1/2 in. outdoor exhaust accelerator, required when used with 045 and 070 input models. Accelerator is not used with 090,
110, 135 input models.
3Flush Mount Kit 51W11 includes 1-1/2 in. outdoor exhaust accelerator, required when used with 045, 070 and 090 input models. Accelerator is not used with 110 or 135
input models.
4Termination Kits 30G28, 44W92, 44W93 and 81J20 are certied to ULC S636 standard for use in Canada only.

SLP98UHV / Page 12
VENT LENGTHS - FEET
STANDARD TERMINATION AT ELEVATION 0 - 7500 ft.
Pipe Size 2 in. 2-1/2 in. 3 in.
Input 070 090 110 135 070 090 110 135 070 090 110 135
No. of
90 ELL
191 69 N/A N/A 140 93 43 N/A 162 143 118 114
286 64 N/A N/A 135 88 38 N/A 157 138 113 109
381 59 N/A N/A 130 83 33 N/A 152 133 108 104
476 54 N/A N/A 125 78 28 N/A 147 128 103 99
571 49 N/A N/A 120 73 23 N/A 142 123 98 94
666 44 N/A N/A 115 68 18 N/A 137 118 93 89
761 39 N/A N/A 110 63 13 N/A 132 113 88 84
856 34 N/A N/A 105 58 N/A N/A 127 108 83 79
951 29 N/A N/A 100 53 N/A N/A 122 103 78 74
10 46 24 N/A N/A 95 48 N/A N/A 117 98 73 69
STANDARD TERMINATION AT ELEVATION 7501 - 10,000 ft.
Pipe Size 2 in. 2-1/2 in. 3 in.
Input 070 090 110 135 070 090 110 135 070 090 110 135
No. of
90 ELL
166 44 N/A N/A 115 68 N/A N/A 137 118 93 89
261 39 N/A N/A 110 63 N/A N/A 132 113 88 84
356 34 N/A N/A 105 58 N/A N/A 127 108 83 79
451 29 N/A N/A 100 53 N/A N/A 122 103 78 74
546 24 N/A N/A 95 48 N/A N/A 117 98 73 69
641 19 N/A N/A 90 43 N/A N/A 112 93 68 64
736 14 N/A N/A 85 38 N/A N/A 107 88 63 59
831 N/A N/A N/A 80 33 N/A N/A 102 83 58 54
926 N/A N/A N/A 75 28 N/A N/A 97 78 53 49
10 21 N/A N/A N/A 70 23 N/A N/A 92 73 48 44
CONCENTRIC TERMINATION ELEVATION 0 - 7500 ft.
Pipe Size 2 in. 2-1/2 in. 3 in.
Input 070 090 110 135 070 090 110 135 070 090 110 135
No. of
90 ELL
183 67 N/A N/A 130 89 39 N/A 146 139 114 105
278 62 N/A N/A 125 84 34 N/A 141 134 109 100
373 57 N/A N/A 120 79 29 N/A 136 129 104 95
468 52 N/A N/A 115 74 24 N/A 131 124 99 90
563 47 N/A N/A 110 69 19 N/A 126 119 94 85
658 42 N/A N/A 105 64 14 N/A 121 114 89 80
753 37 N/A N/A 100 59 N/A N/A 116 109 84 75
848 32 N/A N/A 95 54 N/A N/A 111 104 79 70
943 27 N/A N/A 90 49 N/A N/A 106 99 74 65
10 38 22 N/A N/A 85 44 N/A N/A 101 94 69 60
CONCENTRIC TERMINATION ELEVATION 7501 - 10,000 ft.
Pipe Size 2 in. 2-1/2 in. 3 in.
Input 070 090 110 135 070 090 110 135 070 090 110 135
No. of
90 ELL
158 42 N/A N/A 105 64 N/A N/A 121 114 89 80
253 37 N/A N/A 100 59 N/A N/A 116 109 84 75
348 32 N/A N/A 95 54 N/A N/A 111 104 79 70
443 27 N/A N/A 90 49 N/A N/A 106 99 74 65
538 22 N/A N/A 85 44 N/A N/A 101 94 69 60
633 17 N/A N/A 80 39 N/A N/A 96 89 64 55
728 12 N/A N/A 75 34 N/A N/A 91 84 59 50
823 N/A N/A N/A 70 29 N/A N/A 86 79 54 45
918 N/A N/A N/A 65 24 N/A N/A 81 74 49 40
10 13 N/A N/A N/A 60 19 N/A N/A 76 69 44 35

SLP98UHV / Page 13
DIMENSIONS - INCHES (MM) - UPFLOW POSITION
Model No.
ABC D
in. mm in. mm in. mm in. mm
SLP98UH070XV36B 17-1/2 446 16-3/8 416 16 406 7-5/8 194
SLP98UH090XV36C
SLP98UH090XV48C
SLP98UH090XV60C
SLP98UH110XV60C
21 533 19-7/8 505 19-1/2 495 9-3/8 238
SLP98UH135XV60D 24-1/2 622 23-3/8 594 23 584 11-1/8 283
AIR FLOW
6-9/16 (167)
Left
9 (229)
Right
23
(584)
(19)
3/4
(19)
1Bottom Return
Air Opening
GAS PIPING INLET
(Either Side)
Side Return
Air Opening
(Either Side)
1
Bottom Return
Air Opening
EXHAUST AIR
OUTLET
ELECTRICAL
INLET
(Either Side)
SUPPLY AIR
OPENING
FRONT VIEW SIDE VIEW
TOP VIEW
A
B9/16 (14)
C
3/4
27-3/4
(705)
19-7/16
(494)
23-1/2
(597)
1-1/2
(38)
6-1/2 (165)
(Either Side)
33
(838)
3-1/4
(83)
1-15/16 (49)
14
(356)
9/16
(14)
12-5/8 (321)
(Either Side)
2OPTIONAL
SIDE RETURN
AIR FILTER KIT
(Either Side)
16
(406)
14-3/4
(375)
2OPTIONAL
SIDE RETURN
AIR FILTER KIT
(Either Side)
5/8
(16)
1
3-1/4
(83)
23-3/4
(603)
25
(635)
D
1-1/2 (38)
Front Panel
COMBUSTION
AIR INTAKE
2 (51)
(Either Side)
1-7/8 (48)
CONDENSATE
TRAP CONNECTION
(Either Side)
2
Optional Side Return Air Filter Kit is not for use
with the Optional Return Air Base.
1
NOTE - 60C and 60D size units that require second stage
air volumes over 1800 cfm must have one
of the following:
1. Single side return air with transition, to accommodate
20 x 25 x 1 in. cleanable air filter.
Required to maintain proper air velocity.
2. Single side return air with Optional Return Air Base
3. Bottom return air.
4. Return air from both sides.
5. Bottom and one side return air.
See Blower Performance Tables for additional information.
Flue Condensate Trap Assembly
Furnished for external
field installation
on either side of unit.
(See installation instructions
for additional
information.)
7
(178)

SLP98UHV / Page 14
DIMENSIONS - INCHES (MM) - HORIZONTAL POSITION
D
A
TOP VIEW
27-3/4
(705)
33
(838)
27-3/4
(705)
27-3/4
(705)
A
GAS PIPING INLET
(Top or Bottom)
RETURN
AIR
OPENING
ELECTRICAL INLET
(Top or Bottom)
SUPPLY
AIR
OPENING
FRONT VIEW
TOP VIEW
CA
END VIEW
END VIEW
33
(838)
27-3/4
(705)
19-7/16
(494)
9/16
(14)
B
23-1/2
(591)
3-1/4
(95)
(19)
2 (51)
Top or Bottom
6-1/2 (165)
Bottom
3-1/4 (83)
EXHAUST AIR
OUTLET
LEFT-HAND AIR DISCHARGE
FRONT VIEW
END VIEW END VIEW
AIR
FLOW
ELECTRICAL INLET
(Top or Bottom)
RIGHT-HAND AIR DISCHARGE
9/16
(14)
3/4
AIR
FLOW
AIR
FLOW
19-7/16
(494)
9/16
(14)
B
9/16
(14)
D
A
(83)
3-1/4
SUPPLY
AIR
OPENING
RETURN
AIR
OPENING
C
23-1/2
(591)
3-1/4
(95)
(19)
3/4
AIR
FLOW
COMBUSTION
AIR INTAKE
EXHAUST AIR
OUTLET
COMBUSTION
AIR INTAKE
1-7/8 (48)
1-7/8
(48)
6-9/16 (167) Top
9 (229) Bottom
12-5/8 (321)
Bottom
CONDENSATE
TRAP CONNECTION
6-9/16 (167) Bottom
9 (229) Top
12-5/8 (321)
Bottom
2 (51)
Top or Bottom
6-1/2 (165)
Bottom
(Bottom)
GAS PIPING INLET
(Top or Bottom)
CONDENSATE
TRAP CONNECTION
(Bottom)
1-1/2 (38)
Front Panel
1-1/2 (38)
Front Panel
Model No.
ABC D
in. mm in. mm in. mm in. mm
SLP98UH070XV36B 17-1/2 446 16-3/8 416 16 406 7-5/8 194
SLP98UH090XV36C
SLP98UH090XV48C
SLP98UH090XV60C
SLP98UH110XV60C
21 533 19-7/8 505 19-1/2 495 9-3/8 238
SLP98UH135XV60D 24-1/2 622 23-3/8 594 23 584 11-1/8 283

SLP98UHV / Page 15
OPTIONAL ACCESSORY DIMENSIONS - INCHES (MM)
1-1/4
HORIZONTAL (END) FILTER KIT
FRONT VIEW
24−3/4
(629)
AB
23−1/2
(597)
5/8
(16)
RETURN
AIR
OPENING
SIDE VIEW
AIR FLOW
AIR FILTER
(Furnished)
(32)
5/8
(16)
5/8
(16)
5/8
(16)
Optional Return Air Base
(Upflow Applications Only - For use with B, C and D cabinets)
NOTE- Optional Side Return Air Filter Ki
ts are not for use with Optional Return Air Base.
1
Both the unit return air opening and the base return air opening must be covered by a single plenum or IAQ cabinet.
Minimum unit side return air opening dimensions for units requiring 1800 cfm or more of air (W x H): 23 x 11 in. (584 x 279 mm).
The opening can be cut as needed to accommodate plenum or IAQ cabinet while maintaining dimensions shown.
Side return air openings must be cut in the field. There are cutting guides stenciled on the cabinet for the side return air
opening. The size of the opening must not extend beyond the markings on the furnace cabinet.
2To minimize pressure drop, the largest opening height possible, up to 14 in. (356 mm), is preferred.
FURNACE
FRONT
AIR FLOW
1Unit side return air
Opening
SIDE VIEW
3-1/4
(83)
123 (584)
Overall
(Maximum)
(584)
23
3/4
(19)
122-7/16
(570)
Overall
(Maximum)
SIDE RETURN
AIR OPENINGS
(Either Side)
5-5/8
(143)
1Minimum
11 (279)
2Maximum
14 (356)
(683)
26-7/8
7-1/4
(184)
IF BASE
IS USED
WITHOUT
IAQ CABINET,
A SINGLE
RETURN AIR
PLENUM
MUST
COVER BOTH
UNIT AND
RETURN
AIR BASE
OPENINGS
INDOOR AIR
QUALITY
CABINET
(PCO, Filter
Cabinet, etc.)
AIR BASE
OPTIONAL
RETURN
CONDENSATE
TRAP
(Furnished)
17-1/2 (446) B Width (50W98)
21 (533) C Width (50W99)
24-1/2 (622) D Width (51W00)
Furnace
Cabinet
Width
Catalog
Number
AB
in. mm in. mm
B 87L96 18 457 16-3/4 425
C87L97 21 533 18-3/4 476
D87L98 25 635 23-3/4 603

SLP98UHV / Page 16
DIMENSIONS - INCHES (MM) - FURNACE/COIL COMBINED DIMENSIONS
33
(838)
A
B
33
(838)
A
B
UPFLOW POSITION
Model No Cased Uncased
(CX34 - cased only)
ABAB
CX34 C33 in. mm in. mm in. mm in. mm
- - - C33-18A 12-1/2 318 45-1/2 1156 9-3/4 248 42-3/4 1086
CX34-19A-6F C33-19A 16-1/2 419 49-1/2 1257 9-3/4 248 42-3/4 1086
- - - C33-24A 16-1/2 419 49-1/2 1257 14 356 47 1194
CX34-18/24A-6F
CX34-18/24B-6F
CX34-18/24C-6F
C33-24B
C33-24C
16-1/2 419 49-1/2 1257 13-7/8 352 46-7/8 1191
CX34-25A-6F C33-25A 18-1/2 470 51-1/2 1308 16-1/4 413 49-1/4 1251
CX34-25B-6F C33-25B 18-1/2 470 51-1/2 1308 15-7/8 403 48-7/8 1241
CX34-30B-6F
CX34-30C-6F
C33-30B
C33-30C 20-1/2 521 53-1/2 1359 17-3/4 451 50-3/4 1289
CX34-30A-6F C33-30A 20-1/2 521 53-1/2 1359 18 457 51 1295
CX34-31A-6F C33-31A 22-1/2 572 55-1/2 1410 21-1/4 540 54-1/4 1378
CX34-31B-6F C33-31B 22-1/2 572 55-1/2 1410 20-1/4 514 53-1/4 1353
CX34-36A-6F C33-36A 24-1/2 622 57-1/2 1461 22-1/8 562 55-1/8 1400
CX34-36B-6F C33-36B 24-1/2 622 57-1/2 1461 21-7/8 556 54-7/8 1394
CX34-36C-6F C33-36C 24-1/2 622 57-1/2 1461 21-1/4 540 54-1/4 1378
CX34-38A-6F C33-38A 24-1/2 622 57-1/2 1461 22-1/4 565 55-1/4 1403
CX34-38B-6F C33-38B 24-1/2 622 57-1/2 1461 22 559 55 1397
CX34-42B-6F C33-42B 24-1/2 622 57-1/2 1461 21-7/8 556 54-7/8 1394
CX34-43B-6F C33-43B 27-1/2 699 60-1/2 1537 26-1/4 667 59-1/4 1505
CX34-43C-6F C33-43C 27-1/2 699 60-1/2 1537 25-3/4 654 58-3/4 1492
- - - C33-44C 24-1/2 622 57-1/2 1461 21-1/2 546 54-1/2 1384
CX34-44/48B-6F C33-48B 24-1/2 622 57-1/2 1461 22-1/8 562 55-1/8 1400
CX34-44/48C-6F C33-48C 24-1/2 622 57-1/2 1461 21-1/2 546 54-1/2 1384
CX34-49C-6F C33-49C 29-1/2 749 62-1/2 1588 28-1/2 724 61-1/2 1562
CX34-50/60C-6F C33-50/60C 27-1/2 699 60-1/2 1537 24-3/4 629 57-3/4 1467
CX34-60D-6F C33-60D 25-1/2 648 58-1/2 1486 24-3/4 629 57-3/4 1467
CX34-62C-6F C33-62C 31-1/2 800 64-1/2 1638 30-5/8 778 63-5/8 1616
CX34-62D-6F C33-62D 29-1/2 749 62-1/2 1588 28-3/4 730 61-3/4 1568
HORIZONTAL POSITION
Model
Number
AB
in. mm in. mm
CH33-18A-2F 21-1/2 546 54-1/2 1384
CH33-24/30A-2F
CH33-36A-2F
CH33-36B-2F
CH33-36C-2F
CH33-42B-2F
CH33-48C-2F
CH33-60D-2F
26-1/2 673 59-1/2 1511
CH33-44/48B-2F
CH33-50/60C-2F
CH33-62D-2F 31-1/2 800 64-1/2 1638

SLP98UHV / Page 17
OPTIONAL ACCESSORY DIMENSIONS - INCHES (MM)
FLUSH-MOUNT VENT TERMINATION KIT (51W11)
With 2 or 2-1/2 in. (51 or 64 mm) PVC pipe With 3 in. (76 mm) PVC pipe
3 (76) PVC pipe
2 (51) PVC pipe
2-1/2 (64) PVC pipe
When required Use
Field Provided
2-1/2 to 2 in. (64 to 51 mm)
Coupling
Seal all openings
(typical)
2-3/8 (60)
12 (305) minimum
(recommended)
Intake
(Behind Plate)
Exhaust Intake
(Behind Plate)
Exhaust
NOTE - PVC pipe and fittings are not furnished
and must be field furnished.

SLP98UHV / Page 18
OPTIONAL ACCESSORY DIMENSIONS - INCHES (MM)
CONCENTRIC WALL
TERMINATION APPLICATIONS
INTAKE
AIR EXHAUST
AIR
INTAKE
AIR
INTAKE
AIR
EXHAUST
AIR
OUTSIDE
WALL
12 (305)
Minimum
Above Grade
or Average Snow
Accumulation
12 (305)
Minimum
Above Average
Snow
Accumulation
SHEET METAL STRAP
(Clamp and sheet metal strap
must be field installed to support
the weight of the termination kit.)
FLASHING
(Not Furnished)
CLAMP
GRADE
6−1/2
(165)
(Field Supplied)
ELBOW
INTAKE AIR
EXHAUST
AIR
TERMINATION
ASSEMBLY
(Furnished)
71M80 / 69M29 / 44W92 − 2 inch kits
60L46 / 44W93 − 3 inch kits
See Installation Instructions for additional information.
CONCENTRIC ROOF
TERMINATION APPLICATIONS
CLAMP
(Not Furnished)
6
(152)
A
3−1/2 (89) − 2 in. kits
4−1/2 (114) − 3 in. kits
Outdoor Exhaust Accelerator
included with 71M80/44W92
NOTE − Typical illustration for dimensions only. Design may vary depending on kit ordered.
Cat. No. AB
in. mm in. mm
71M80
69M29 33−3/8 848 16−3/4 425
44W92
(Canada) 29 737 15−1/2 394
60L46 38−7/8 987 21−3/16 538
44W93
(Canada) 36−1/8 918 19−1/2 495
Note - Field provided reducer may be
required to adapt larger vent pipe size to termination.
8 in. (203 mm)
minimum
6 in. (152 mm)
maximum
DIRECT VENT APPLICATION
WALL ASSEMBLY TERMINATION KIT − RING KIT 15F74 − 2 inch (51 mm)
See Installation Instructions for additional information.
12 in. (305 mm) - 2 in. (51 mm) dia. exhaust pipe
20 in. (508 mm) - 3 in. (76 mm) dia. exhaust pipe
maximum length without support
NOTE − 12 in. (305 mm) minimum height above
average snow accumulation
(from bottom of vent pipe).
Note - Field provided reducer may be required to adapt larger vent pipe size to termination.

SLP98UHV / Page 19
OPTIONAL ACCESSORY DIMENSIONS - INCHES (MM)
12 (305) Minimum
Above Grade or Average
Snow Accumulation
1/2 (13)
FOAM INSULATION
(Field Furnished)
5
(127)
5-1/2
(140)
EXHAUST
AIR
INTAKE
AIR
GRADE
12
(305)
INTAKE
AIR
EXHAUST
AIR
GRADE
8 (203) MIN. Between Ends of Exhaust and Intake Pipe
12 (305) MAX. for 2 (51) Dia. Exhaust
20 (508) MAX. for 3 (76) Dia. Exhaust
WALL SUPPORT
12 (305) MAX. for 2 (51) Dia. Exhaust
20 (508) MAX. for 3 (76) Dia. Exhaust
12 (305) Minimum
Above Grade or Average
Snow Accumulation
WALL TERMINATION KITS (CLOSE-COUPLE)
EXTENDED VENT FOR GRADE CLEARANCE
2 inch (51 mm) 22G44 (US)
3 inch (76 mm) 44J40 (US)
See Installation Instructions for additional information.
6 (152)
Maximum
If Intake and Exhaust Pipe is less than12 in. (305 mm)
above snow accumulation or other obstructions,
field fabricated piping must be installed.
8 (203) MIN.
Note - Field provided reducer may be required to adapt larger vent pipe size to termination.
12 (305) Minimum
Above Grade or Average
Snow Accumulation
1/2 (13)
FOAM INSULATION
(Field Furnished)
5
(127)
5-1/2
(140)
EXHAUST
AIR
INTAKE
AIR
GRADE
12
(305)
INTAKE
AIR
EXHAUST
AIR
GRADE
WALL SUPPORT
12 (305) Minimum
Above Grade or Average
Snow Accumulation
WALL TERMINATION KITS (CLOSE-COUPLE)
EXTENDED VENT FOR GRADE CLEARANCE
2 inch (51 mm) 30G28 (WTK Canada)
3 inch (76 mm) 81J20 (WTK Canada)
See Installation Instructions for additional information.
6 (152)
Maximum
If Intake and Exhaust Pipe is less than12 in. (305 mm)
above snow accumulation or other obstructions,
field fabricated piping must be installed.
12 (305) MAX. for 2 (51) Dia. Exhaust
20 (508) MAX. for 3 (76) Dia. Exhaust
12 (305) MAX. for 2 (51) Dia. Exhaust
20 (508) MAX. for 3 (76) Dia. Exhaust
Note - Field provided reducer may be required to adapt larger vent pipe size to termination.
6 (152) MIN.
6 (152)
MIN.

SLP98UHV / Page 20
BLOWER DATA
SLP98UH070XV36B BLOWER PERFORMANCE (less lter)
BOTTOM RETURN AIR
HEATING BLOWER PERFORMANCE - 0 through 0.8 in. w.g. External Static Pressure Range
Heating Adjust CFM Selections Heating Input Range and Blower Volume - CFM
35% 40% 50% 60% 70% 80% 90% 100%
Increase (+15%) Heat CFM 489 538 636 735 833 931 1030 1128
Increase (+7.5%) Heat CFM 450 496 588 680 772 864 956 1048
Default Heat CFM 410 453 539 624 710 796 881 967
Decrease (-7.5% ) Heat CFM 380 419 498 578 657 736 815 895
Decrease (-15% ) Heat CFM 349 385 458 531 604 676 749 822
SLP98UH070XV36B BLOWER MOTOR WATTS - COOLING
Blower Speed
Options
Motor Watts @ Various External Static Pressures - in. wg.
First Stage Second Stage
00.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 00.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Increase (+10%) Cool CFM
Low 22 36 51 60 80 95 101 117 138 68 88 105 129 152 169 198 214 231 244 274
Medium-Low 37 57 75 89 106 127 148 168 182 121 144 168 192 211 243 262 287 305 329 358
Medium-High 62 85 97 122 144 164 180 203 220 213 231 259 285 311 328 357 374 397 419 445
High 88 115 132 155 176 203 233 240 274 304 322 359 379 411 442 458 486 502 527 554
Default Cool CFM
Low 16 29 42 55 71 82 98 112 120 52 69 86 107 122 146 165 183 199 212 229
Medium-Low 26 41 63 79 88 112 128 145 159 89 108 135 151 174 198 223 247 268 288 298
Medium-High 39 62 77 96 117 140 156 180 196 151 173 201 225 243 266 289 313 339 368 383
High 65 84 104 125 148 166 178 206 225 237 256 284 303 328 343 374 395 421 435 454
Decrease (-10%) Cool CFM
Low 11 21 35 53 64 75 82 95 113 34 50 67 86 106 121 141 159 174 186 201
Medium-Low 21 36 51 66 81 92 107 127 141 64 85 100 114 145 160 182 206 219 237 251
Medium-High 35 48 66 82 104 118 137 146 159 101 125 143 171 193 211 242 258 282 304 330
High 43 60 82 100 123 144 159 174 197 161 188 211 229 258 277 307 327 354 379 404
COOLING BLOWER PERFORMANCE - 0 through 1.0 in. w.g. External Static Pressure Range
Cooling Adjust CFM
Selections
Blower Speed Selections
First Stage Cool Speed - cfm Second Stage Cool Speed - cfm
Low Medium-
Low
Medium
High
High
(Default)
Low Medium-
Low
Medium
High
High
(Default)
Increase (+10%) Cool CFM 600 740 840 970 860 1060 1215 1365
Default Cool CFM 555 665 770 855 810 960 1130 1265
Decrease (-10%) Cool CFM 500 600 680 790 705 840 1005 1140
The effect of static pressure is included in air volumes shown.
The following control congurations are available. See Installation Instructions for details and DIP switch settings.
Heat Modes Available (Heating Blower Performance Table):
Single stage thermostat:
- 35%, 70%, 100% input (three-stage) with time delays in-between
Two-stage thermostat:
- Variable Rate Capacity Mode - furnace automatically adjusts ring rate based on rst- and second-stage cycle times
- W1 demand at 70% input, W2 demand at 100% input. No delay between stages
Cool Mode Available (Cooling Blower Performance table):
First stage COOL (two-stage air conditioning units only) is approximately 70% of the same second stage COOL speed position.
Continuous Fan speeds are approximately 28%, 38%, 70% and 100% (DIP switch selectable) of the same second-stage COOL speed position
minimum 300 cfm.
Lennox Harmony III™ Zoning System Applications - Minimum blower speed is 250 cfm.