L SERIES® ROOFTOP UNITS − 60HZ

L SERIES® ROOFTOP UNITS − 60HZ
PACKAGED GAS / ELECTRIC
LG
L
ENGINEERING DATA
SERIES®
ROOFTOP UNITS − 60HZ
7.5 to 12.5 Tons
Bulletin No. 210317
April 2004
Supersedes August 2003
Humiditrol®
Heavy Gauge
Galvanized Steel
Panels with
Two−layer
Enamel Paint Finish
MERV 7 Filters Furnished
(Optional MERV 11
Available)
Hot Gas
Reheat Option
Available (Not Shown)
(R−22 Models)
Copper Tube
Coil with
Enhanced Fins
Circuit Breaker,
Disconnect
and GFI Service Outlets
Available
ASHRAE 90.1
COMPLIANT
Thermally Protected
Outdoor Coil Fan Motor with
PVC Coated Fan Guard
Independent Fan
Motor Mount
(Separate from fan guard)
Insulated Panels in all
Conditioned Areas
Belt Drive Blower
Thermal Expansion
Valves with Filter Drier
Intelligent Unit Controller
Solid−State Microprocessor
Provides Flexible Control of
all Unit Functions and
Diagnostics
Combustion Air
Inducer
Aluminized
Steel Inshot
Burners
Copeland Scroll
Compressors
with Crankcase Heater
Dual Stage
Gas Valve with
Manual Shut−Off
R−410A Refrigerant Available
(10 Ton Standard Efficiency
Model Only)
Fully
Insulated Base
Full Perimeter
Base Rail with
Rigging Holes and
Fork Lift Slots
Refrigerant
Service Valves
Available
Power/Gas Entry
Through Base
or Side of Unit
High and Low
Pressure Switches
Hinged Access
Panels with Quarter
Turn latches
Aluminized Steel
Heat Exchanger
(Optional Stainless
Steel Available)
LGA120
Shown With Optional Economizer
MODEL NUMBER IDENTIFICATION
L G A 090 H 2 B S 2 Y
Brand/Family
L = L Series Product Line
Voltage
Y = 208/230V-3 phase-60hz
G = 460V-3 phase-60hz
J = 575V-3 phase-60hz
Unit Type
G = Packaged Gas Heat w/ Electric Cooling
Major Design Sequence
A = 1st Generation
B = 2nd Generation
C = 3rd Generation
E = 4th Generation
Nominal Cooling Capacity − Tons
090 = 7.5 Tons
102 = 8.5 Tons
120 = 10 Tons
150 = 12.5 Tons
Cooling Efficiency
S = Standard Efficiency
H = High Efficiency
Minor Design Sequence
1 = 1st Revision
2 = 2nd Revision
3 = 3rd Revision
Heating Type
S = Standard Gas Heat, 2 Stage
M = Medium Gas Heat, 2 Stage
H = High Gas Heat, 2 Stage
Blower Type
B = Belt Drive
Refrigerant Type
2 = R−22
4 = R−410A
Visit us at www.lennox.com
For the latest technical information, www.davenet.com
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.
©2004 Lennox Industries Inc.
FEATURES AND BENEFITS
COOLING SYSTEM
CONTENTS
Accessory Air Resistance . . . . . . . . . . . . . . . . . . . . . Page 20
Blower Performance . . . . . . . . . . . . . . . . . . . . . . Pages 19−21
Cooling Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . Pages 13−16
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pages 31−34
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . Pages 22−23
Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . Pages 2−4
Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 24
Guide Specifications . . . . . . . . . . . . . . . . . . . . . . Pages 35−42
High Altitude Information . . . . . . . . . . . . . . . . . . . . . . Page 21
Humiditrol® Condenser Reheat Option . . . . . . . . . . . Page 5
Humiditrol® Condenser Reheat Ratings . . . . . Pages 17−18
Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . Page 23
Model Number Identification . . . . . . . . . . . . . . . . . . . . Page 1
Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . Pages 6−8
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pages 9−12
Sound Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 21
System Controller / Unit Controllers . . . . . . . . . Pages 25−30
Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 31
APPROVALS
ETL and CSA listed.
Efficiency rating verified by CSA.
Components bonded for grounding to meet safety standards for
servicing required by UL, CSA and National and Canadian
Electrical Codes.
Certified in accordance with the ULE certification program,
which is based on ARI Standard 340/360−2000.
ISO 9001 Registered Manufacturing Quality System.
ENERGY STAR® certified units are designed to use less energy,
help save money on utility bills, and help protect the
environment.
CABINET
Construction
Heavy−gauge steel panels and full perimeter heavy−gauge
galvanized steel base rail provides structural integrity for
transportation, handling, and installation.
Base rails have rigging holes. Three sides of the base rail have
fork slots.
Raised edges around duct and power entry openings in the
bottom of the unit provide additional protection against water
entering the building.
Air−Flow Choice
Units are available in down−flow (vertical) or horizontal air flow
configuration.
Duct Flanges
Horizontal supply duct flange is standard on all units.
Power/Gas Entry
Electrical and gas lines can be brought through the unit base or
through horizontal access knock−outs.
Exterior Panels
Constructed of heavy−gauge, galvanized steel with a two−layer
enamel paint finish.
Insulation
All panels adjacent to conditioned air are fully insulated with
non−hygroscopic fiberglass insulation.
Unit base is fully insulated. The insulation also serves as an air
seal to the roof curb, eliminating the need to add a seal during
installation.
Access Panels
Hinged access panels are provided for the economizer/filter
section, blower/heating section and the compressor/controls
section.
All panels have seals and quarter−turn latching handles to
provide a tight air and water seal.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 2
Designed to maximize sensible and latent cooling performance
at design conditions.
Two efficiency levels provide flexibility.
System can operate from 0°F (−18°C) to 125°F (52°C) without
any additional controls.
Compressors
Resiliently mounted on rubber grommets for quiet operation.
Copeland Scroll
compressors on all models for high
performance, reliability and quiet operation.
Compressor Crankcase Heaters
Protects against refrigerant migration that can occur during low
ambient operation.
Thermal Expansion Valves
Assures optimal performance throughout the application range.
Removable element head.
Filter/Driers
High capacity filter/drier protects the system from dirt and
moisture.
High Pressure Switches
Protects the compressor from overload conditions such as dirty
condenser coils, blocked refrigerant flow, or loss of outdoor fan
operation.
Low Pressure Switches
Protects the compressor from low pressure conditions such as
low refrigerant charge, or low/no air flow.
Freezestats
Protects the evaporator coil from damaging ice build−up due to
conditions such as low/no air flow, or low/no refrigerant charge.
Coil Construction
Copper tube construction, enhanced rippled−edge aluminum
fins, flared shoulder tubing connections, silver soldered
construction for improved heat transfer. Factory leak tested.
Evaporator Coil
Face split with separate circuits.
Cross row circuiting optimizes both sensible and latent cooling
capacity.
Condenser Coil
Slab type on all models.
Condensate Drain Pan
Painted, galvanized pan with positive slope.
Drain connection extends outside unit.
Outdoor Coil Fan Motors
Thermal overload protected, totally enclosed, permanently
lubricated ball bearings, shaft up, wire basket mount.
Outdoor Coil Fans
PVC coated fan guard furnished.
Refrigerant Choice
LGC120S models can be ordered with R−22 or R−410A
refrigerant systems.
HEATING SYSTEM
Aluminized steel inshot burners, direct spark ignition, electronic
flame sensor, combustion air inducer, redundant automatic dual
stage gas valve with manual shut-off.
Fan & Limit Controls
Factory installed, limit controls with fixed temperature setting.
Heat limit controls protect against overheating.
Safety Switches
Flame roll−out switches, flame sensor switches and combustion
air inducer proving switches protect system operation.
All safety switches are monitored by the IMC unit controller and
diagnostic errors are reported and recorded.
Heat Exchanger
Tubular construction, aluminized steel, life cycle tested.
Stainless Steel Heat Exchanger is required if mixed air
temperature is below 45°F ( 7°C).
FEATURES AND BENEFITS
AIR FILTERS
Disposable 2 inch (51 mm) pleated MERV 7 filters (Minimum
Efficiency Reporting Value based on ASHRAE 52.2).
Optional MERV 11 filters are available for factory or field
installation − See Optional Accessories section.
BLOWER
A wide selection of supply air blower options are available to
meet a variety of air flow requirements.
Motor
Overload protected, equipped with ball bearings.
Belt drive motors are offered on all models and are available in
several different sizes to maximize air performance.
Motor Efficiency
Specify standard or high efficiency.
Supply Air Blower
Overload protected, belt drive motors.
Forward curved blades, double inlet, blower wheel is statically
and dynamically balanced, ball bearings, adjustable pulley
(allows speed change), blower assembly slides out of unit for
servicing.
Ordering Information
Specify motor horsepower and drive kit number when base unit
is ordered.
See Blower Data table for specifications.
SERVICEABILITY
Designed to streamline general maintenance and decrease
troubleshooting time.
Diagnostics
IMC diagnostic codes pinpoint problems, minimizing
troubleshooting time.
Marked & Color−Coded Wiring
All electrical wiring is color−coded and marked to identify which
components it is connecting.
Electrical Plugs
Positive connection electrical plugs are used to connect
common accessories or maintenance parts for easy removal or
installation.
Toolless, Hinged Access Panels
Large access panels are hinged and have quarter−turn, latching
handles for quick and easy access to maintenance areas.
Blower Access
Blower assembly slides out of the unit for easy access.
Thermal Expansion Valves
Thermal expansion valves are located near the perimeter of the
unit for easier access.
Removable element head allows change out of element and
bulb without removing the TXV.
Coil Cleaning
Slab coils allow for easy cleaning. Doors at each end of the coil
compartment allow access to clean coils from the inside.
Standard Components
A large number of common maintenance parts are standard
throughout the entire range of sizes (3−30 tons), reducing the
need to carry a lot of different parts to the job or in inventory.
Compressor Compartment
Compressors are located near the perimeter of the unit for easier
access.
Compressors are isolated from the condenser air flow allowing
system operation checks to be done without changing the air
flow across the outdoor coils.
Service Valves (optional)
Optional factory installed liquid and discharge service valves
allow refrigerant to be isolated to the high side for service work
on the low side of the refrigeration system.
WARRANTY
Limited ten years aluminized heat exchanger, limited fifteen
years optional stainless steel heat exchanger.
Limited five years on compressors.
Limited three years on Integrated Modular Control.
Limited one year all other covered components.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 3
FEATURES AND BENEFITS
Intelligent Unit Controller
The Integrated Modular Control (IMC) is a solid−state
microprocessor−based control board that provides flexible
control of all unit functions.
All control voltage is provided via a 24V (secondary) transformer
with built−in circuit breaker protection.
Built-in functions include:
Blower On/Off Delay − Adjustable time delay between blower
on and off.
Built-in Control Parameter Defaults − no programming
required.
Compressor Time−Off Delay − Adjustable time delay between
compressor shutoff and start up.
DDC Compatible − Various third party DDC controllers can be
factory or field installed. Refer to the Unit Controllers section for
details.
Dirty Filter Switch Input − When a Dirty Filter Switch is installed,
the IMC will signal when the indoor blower static pressure
increases, indicating a dirty filter condition. Switch is optional
and can be factory or field installed.
Display/Sensor Readout − Displays control parameters,
diagnostic codes, and sensor readings. The IMC unit controller
displays temperature readings from return air, supply air, and
outdoor air sensors that are furnished as standard on all L Series
units. IMC will also display readings from optional sensors such
as zone sensors, CO2 sensors or relative humidity sensors.
Economizer Control Choice − the economizer is controlled by
an add−on board to the IMC. The economizer control board has
four choices (DIP switch selectable) for controlling the
economizer.
1 − Sensible Control − Uses the outdoor air and return air
sensors that are furnished with the unit. The IMC compares the
two temperatures and enables the economizer when the
outdoor air is cooler than return air.
2 − Global Enthalpy Control − the IMC communicates with a
DDC system that uses one global sensor (enthalpy or sensible),
to determine whether outside air is suitable for free cooling on all
units connected to the control system. Sensor must be field
provided.
3 − Outdoor Enthalpy Control − Senses outdoor air enthalpy
and enables economizer if the enthalpy is less than the setpoint
of the board. Can be ordered factory or field installed.
4 − Differential Enthalpy Control − Two solid-state enthalpy
sensors allow the control board to select between outdoor air or
return air, whichever has lower enthalpy. Can be ordered factory
or field installed.
Fresh Air Tempering − The IMC energizes the first stage heat as
needed to maintain a minimum supply air temperature for comfort,
regardless of the thermostat demand. For factory option, sensor
ships with unit but must be field installed in the supply air duct.
Extensive Unit Diagnostics − The IMC monitors all sensors
and functions related to unit operation to provide critical
information. The IMC will display detailed diagnostic information
with over 80 diagnostic codes to pinpoint any problems and
reduce troubleshooting time. All diagnostic codes are listed
inside control access panel for easy reference.
Permanent Diagnostic Code Storage − Maintains diagnostic
codes through a power failure.
Field Changeable Control Parameters − Over 100 different
control parameters allow customization of the unit operation by
changing delays, cooling stages, deadbands, and setpoints.
Indoor Air Quality Input − The IMC is Demand Control
Ventilation ready from the factory (optional field installed CO2
sensor required). Two modes of operation are available: setpoint
and proportional.
1 − Setpoint − Opens the economizer dampers to full position
when CO2 setpoint level is reached.
2 − Proportional − Opens the dampers at the first set point and
gradually increases it as the CO2 level increases until the
second setpoint is reached.
Low Ambient Controls − Allows unit cooling operation down to
0°F (−18°C).
Gas Valve Time Delay Between First and Second Stage −
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 4
Allows gradual increase of input rate.
Minimum Compressor Run Time − Ensures proper oil return to
the compressor.
Network Capable − The IMC can be daisy chained to other L
Series units or L Connection® Network controllers using twisted
pair wire.
Night Setback Mode − Adjusts setpoints, closes outdoor air
dampers and operates the blower on demand, may be
customized for special requirements.
Return Air Temperature Limit Control − Allows the user to
override the demands based upon the return air temperature
during either heating or cooling operation. Helps protect
against abnormal operating conditions in the event of a room
sensor or thermostat failure.
Safety Switch Input − Normally−closed digital input allows the
IMC to respond to a external safety switch trip (phase protector,
low voltage, etc.) shutting down unit operation.
Service Relay Output − Digital output can indicate a critical error
has occurred to an external control device.
Smoke Alarm Mode − Control board has four choices for
responding to a smoke alarm.
1 − Unit Off − unit will turn off.
2 − Positive Pressure − blower is energized, exhaust fan is
de−energized, and the outdoor air dampers are opened.
3 − Negative Pressure − blower is energized, exhaust fan is
energized, and the outdoor air dampers are closed.
4 − Purge − blower is energized, exhaust fan is energized, and
the outdoor air dampers are opened.
Staging − Capable of up to 2 heat/3 cool staging with a third party
DDC control system or thermostat and up to 2 heat /4 cool
staging with room sensor and L Connection® network controller.
Strike Three" Protection − Ends cooling or heating operation
when any of the following occurs three times (adjustable) within
a thermostat cycle: low pressure trip, high pressure trip, heat
limit trip, or freeze−stat trip.
Gas Reheat − Control parameter option that allows simultaneous
heating and cooling operation on gas units for controlling humidity
for process air applications such as supermarkets. Field installed
relative humidity sensor or humidity thermostat required.
Thermostat Bounce Delay − Protects compressor from short
cycling when mechanical thermostat is used.
Warm-up Mode Delay − Adjustable time that the economizer
dampers are kept in the closed position during morning
warm−up.
On−Board User Interface − Push−button, DIP switches used with
three−digit display readout for field adjusting of control
parameters.
PC Interface − PC with optional Unit Controller software may be
used to field or remotely adjust parameters, read alarms, or
display unit status.
Humiditrol® HOT GAS Reheat Option − 090H, 102H, 120H, 150S MODELS (R−22)
Factory installed option designed to control humidity (R−22
models only).
Provides dehumidification on demand using ASHRAE 90.1
recommended method for reheat with comfort conditioning
humidity control.
In addition to a thermostat or room sensor used for conventional
operation, a humidity sensor is required and must be located in
the occupied space. Remote Mounted Humidity Sensor Kit
(17M50) is required for field installation.
The humidity sensor provides input to the Integrated Modular
Control which is used to control activation of the
dehumidification
operation.
Reheat controls are located in the compressor control section of
the unit for easy access.
Benefits
Improves indoor air quality.
Helps prevents damage due to high humidity levels.
Improves comfort levels by reducing space humidity levels.
OPERATION
No Dehumidification Demand − The unit will operate
conventionally whenever there is a demand for cooling or
heating and no dehumidification demand.
Free cooling is only permitted when there is no demand for
dehumidification.
Dehumidification Demand Only − The IMC is factory set at
60% relative humidity setpoint and can be adjusted at the IMC or
with optional Unit Controller Software.
For L Connection® Network Control Panel (NCP) applications,
the humidity setpoint can be adjusted at the NCP.
The unit will operate in the dehumidification mode until the
relative humidity of the conditioned space is 3% below the
setpoint.
Reheat operation will initiate on a dehumidification demand and
does not require a cooling demand.
The reheat coil is sized to offset most of the 1st stage sensible
cooling effect during reheat only operation. This reduces
sensible cooling capacity and extends compressor run time to
control humidity when the cooling load is low.
A solenoid valve diverts hot gas from the compressor to the
reheat coil.
The cooled and dehumidified air from the evaporator is reheated
as it passes through the reheat coil.
The de−superheated and partially condensed refrigerant
continues to the outdoor condenser coil where condensing is
completed. The unit will continue to operate in this mode until the
dehumidification demand is satisfied.
A heating demand will terminate reheat operation.
Dehumidification and Cooling Demand (Thermostat/Room
Sensor Application) − If both a dehumidification and a first
stage cooling demand occur, the system will operate
compressor 1 in reheat and compressor 2 in cooling. A demand
for 2nd stage cooling will terminate compressor 1 reheat
operation and will then operate compressor 1 and compressor 2
in cooling until 2nd stage cooling demand is satisfied.
HUMIDITROL REFRIGERANT SCHEMATIC
EVAPORATOR
COIL
CONDENSER COIL
REHEAT
COIL
REFRIGERANT
CIRCUIT 1
REFRIGERANT
CIRCUIT 2
REHEAT
VALVE
CHECK
VALVE
EXPANSION
VALVES
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 5
REQUIRED SELECTIONS − Items MUST be specified when the unit is ordered
Cooling Capacity − Specify the nominal cooling capacity of the
unit.
Cooling Efficiency − Specify either standard or high efficiency.
Voltage Choice − Specify when ordering base unit.
Air Flow Configuration − Specify horizontal or down−flow.
Gas Input − Order one:
84,500/130,000 Btuh (24.7/38.1 kW) Standard Heat Gas Input
117,000/180,000 Btuh (34.3/52.7 kW) Medium Heat Gas Input
156,000/240,000 Btuh (45.7/70.3 kW) High Heat Gas Input
Refrigerant Choice (LGC120S 10 Ton Only)
Specify R−22 or R410A refrigerant (this size unit only).
Supply Air Blower
Order Standard or High Efficiency Blower motor (See Blower
Data Table for specifications).
Order one drive kit, see Drive Kit Specifications Table.
OPTIONAL ACCESSORIES
FACTORY INSTALLED ONLY − Items must be ordered with the unit for factory installation
ELECTRICAL
Circuit Breakers − HACR circuit breaker without power
distribution lugs. Accessible from outside of unit, spring−loaded
weatherproof cover furnished. Main power to the unit is field
connected to the circuit breaker which allows all power to be
shutoff for service. Circuit breaker is sized to the unit maximum
overcurrent protection (MOCP) size.
CABINET
Corrosion Protection − Phenolic epoxy coating, applied to
condenser coils (with painted base section) and evaporator coils
(with painted base and painted blower housings), factory applied
to either section or both sections.
COOLING
Service Valves − Fully serviceable brass valves installed in
discharge and liquid lines.
GAS HEAT
Stainless Steel Heat Exchanger − Required if mixed air
temperature is below 45 °F (7 °C).
HUMIDITROL®
Humiditrol® Condenser Reheat Option (R−22 Model Only) −
Factory installed option designed to control humidity. Provides
dehumidification on demand using ASHRAE 90.1
recommended method for comfort conditioning humidity control.
Available for LGA090H, LGA102H, LGA120H and LGC150S
only.
FACTORY or FIELD INSTALLED
These items can either be ordered with the unit for factory installation or ordered at any time and field installed
CONTROLS
Blower Proving Switch − Monitors blower operation, shuts
down unit if blower fails.
Commercial Controls − Unit controllers and system controllers,
see pages 23−28 for complete listing.
Dirty Filter Switch − Senses static pressure increase indicating
dirty filter condition.
Smoke Detector − Photoelectric type, installed in supply air
section or return air section or both sections.
COOLING
Condensate Drain Trap − field installed only, may be factory
enclosed to ship with unit. Available in copper or PVC.
ELECTRICAL
Disconnect Switch − Accessible from outside of unit, spring
loaded weatherproof cover furnished.
GFI Service Outlets (2) − 115v ground fault circuit interrupter
(GFCI) type, field wired.
FILTERS
MERV 11 Filters − Disposable 2 inch (51 mm) pleated MERV 11
filters (Minimum Efficiency Reporting Value based on ASHRAE
52.2).
GAS HEAT
Fresh Air Tempering − Used in applications with high outside air
requirements. The IMC energizes the first stage heat as needed
to maintain a minimum supply air temperature for comfort,
regardless of the thermostat demand. When ordered as a
factory option, the sensor ships with the unit but must be field
installed.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 6
ECONOMIZER/OUTDOOR AIR/EXHAUST
OPTIONS
Economizer − Parallel gear driven action recirculated air and
outdoor air dampers, plug-in connections to unit, nylon bearings,
neoprene seals, 24 volt fully modulating spring return motor,
adjustable minimum damper position, damper assembly slides
in unit, outdoor air hood must be ordered separately, optional
down-flow barometric relief dampers available, choice of
economizer controls, the IMC add−on board for economizer
control is included with the economizer.
Enthalpy Control Kit − Differential − Two solid-state enthalpy
sensors that allow the economizer control board to select between
outdoor air or return air, whichever has lowest enthalpy.
Enthalpy Control Kit − Outdoor − Outdoor air enthalpy sensor
that allows the economizer control board to open the dampers if
the outdoor enthalpy is less than the setpoint of the board.
Down−Flow Barometric Relief Dampers − Allows relief of
excess air, aluminum blade dampers prevent blow back and
outdoor air infiltration during off cycle, bird screen furnished, see
Field Installed section (below) for damper hood
Outdoor Air Damper Section − Linked mechanical dampers, 0 to
25% (fixed) outdoor air adjustable, installs in unit, outdoor air hood
must be ordered separately. Automatic model features fully
modulating spring return damper motor with plug−in connection.
Manual model features a slide damper.
Minimum mixed air temperature in heating mode 30°F (−1°C)
Maximum mixed air temperature in cooling mode: 90°F (32°C)
Outdoor Air Hood − Required with LAREMD Economizer,
LAOAD and LAOADM Outdoor Air Damper Sections, two
cleanable aluminum mesh fresh air filter furnished.
Power Exhaust Fan − Installs external to unit for down-flow
applications only with economizer option, provides exhaust air
pressure relief, interlocked to run when supply air blower is
operating, fan runs when outdoor air dampers are 50% open
(adjustable), motor is overload protected, steel cabinet and hood
painted to match unit. Fan is 20 in. (508 mm) in diameter with 5
fan blades. Total air volume is 4200 cfm (1980 L/s) at 0 in. wg. (0
Pa). 1/3 hp (249 W) motor. 300 Watts total input.
OPTIONAL ACCESSORIES
FIELD INSTALLED ONLY − Not available for factory installation, must be ordered separately and field installed.
CABINET
Coil Guards − Painted, galvanized steel wire guards to protect
outdoor coil. Not used with Hail Guards.
Grille Guards − Protects space between outdoor coils and main
cabinet.
Hail Guards − Constructed of heavy gauge steel, painted to
match cabinet, helps protect outdoor coils from hail damage. Not
used with Coil Guards.
Horizontal Conversion Kit − Two piece duct cover in kit blocks
off unit down flow supply air opening, horizontal return air
opening panel (on unit) is moved to block off down flow return air
opening for horizontal applications.
CEILING DIFFUSERS
Ceiling Diffusers − Aluminum grilles, large center grille,
insulated diffuser box with flanges, hanging rings furnished,
interior transition (even air flow), internally sealed (prevents
recirculation), adapts to T-bar ceiling grids or plaster ceilings.
Transitions (Supply and Return) − Used with diffusers, installs
in roof curb, galvanized steel construction, flanges furnished for
duct connection to diffusers, fully insulated.
CONTROLS
Thermostat Control Systems − See page 29.
OUTDOOR AIR/EXHAUST OPTIONS
Down−Flow Barometric Relief Damper Hood − Field installed
only.
Horizontal Barometric Relief Dampers − Allows relief of
excess air, aluminum blade dampers prevent blow back and
outdoor air infiltration during off cycle, field installed in return air
duct, bird screen and hood furnished, two dampers per order
number.
GAS HEAT
Combustion Air Intake Extensions − recommended for use
with existing flue extension kits in areas where high snow drifts
can block intake air
LPG/Propane Kit − conversion kit to field changeover units from
Natural Gas to LPG/Propane.
Vertical Vent Extension Kit − for high snow areas or when vent
is too close to fresh air intake.
HUMIDITROL®
Humidity Sensor Kit, Remote Mounted − Humidity sensor
required with factory installed Humiditrol Option or
Supermarket reheat field selectable option.
INDOOR AIR QUALITY
Indoor Air Quality (CO2) Sensor − Monitors CO2 levels, reports to
IMC board which adjusts economizer dampers as needed.
ROOF CURB
Roof Curb, Down−Flow − Nailer strip furnished, mates to unit,
US National Roofing Contractors Approved, shipped knocked
down. Available in 14 inch (356 mm) and 24 inch (610 m) heights.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 7
OPTIONAL ACCESSORIES − See PAGE 6−7 FOR DETAILED DESCRIPTIONS
Cabinet
A
Accessories
i
Ceiling
Diffusers
The catalog and part numbers that appear here are for ordering field installed accessories only.
7.5 ton
8.5 ton
10 ton
Item
Factory Field
090
102
120
Coil Guards
%
88K51
Grille Guards
%
86K29
Hail Guards
%
88K24
Horizontal Conversion Kit
%
LTHSDKGC10/15
Step−Down − Net Weight
%
RTD11-95
RTD11-135
88 lbs. (40 kg)
205 lbs. (93 kg)
%
FD11-95
75 lbs. (34 kg)
FD11-135
174 lbs. (79 kg)
FD11-185
289 lbs. (131 kg)
Transitions (Supply and Return) − Net Weight
%
LASRT08/10
30 lbs (14 kg)
LASRT10/12
32 lbs (15 kg)
LASRT15
36 lbs. (16 kg)
S
S
S
S
S
S
S
S
S
S
S
%
%
%
%
%
%
%
Economizer Enthalpy Control − Differential
Economizer Enthalpy Control − Outdoor
Economizer Control − Global
(sensor must be field provided)
S
S
S
%
%
Economizer Control − Sensible
Down−Flow Barometric Relief Dampers − Net Weight
Hood for Down−Flow LAGED
Horizontal Barometric Relief Dampers − Net Weight
Damper Section (down−flow) − Automatic − Net Weight
Damper Section (down−flow) − Manual − Net Weight
Outdoor Air Hood (down−flow) Net Weight
Number and Size of Filters
S
S
Blower Proving Switch
Commercial Controls
Dirty Filter Switch
Smoke Detector − Supply
Smoke Detector − Return
PVC Condensate Drain Trap
Copper Condensate Drain Trap
Service Valves
Cooling
g
A
Accessories
i
Barometric
R li f
Relief
Outdoor
Ai
Air
Dampers
Power Exhaust
Electrical
A
Accessories
i
Filters
Gas
H ti
Heating
Accessories
Economizer − Net Weight
Economizer Outdoor Air Hood − Net Weight
Number and Size of Filters
Down−Flow
R f Curbs
Roof
C b
S
S
S
Power Exhaust Fan − Net Weight
HACR Circuit Breaker
Disconnect Switch
GFI Service Outlets
MERV 11 High Efficiency
Combustion Air Intake Extensions
Fresh Air Tempering Kit
LPG/Propane Kits
S
S
S
S
S
Stainless Steel Heat Exchanger
Vertical Vent Extension Kit
S
Humiditrol ® Hot Gas Reheat Option
090H, 102H, 120H and 150S
Indoor Air
Q lit (CO2)
Quality
Sensors
RTD11-185
392 lbs. (178 kg)
Flush − Net Weight
Controls
Corrosion Protection
Economizer
12.5 ton
150
Humidity Sensor Kit, Remote Mounted (required)
CO2 Sensor Duct Mounting Kit
Sensor − white case CO2 display
Sensor − white case no display
Sensor − black case CO2 display
Sensor − duct mount, black, no display
Aspiration Box for duct mounting
Handheld CO2 Monitor
14 in. (356 mm) height − Net Weight
24 in. (610 m) height − Net Weight
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 8
S
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
LTABPSK
See pages 23 − 29
LTADFSK
LTASASDK10/36
LTRASDK−10/30
LTACDKP03/36
LTACDKC03/36
Factory installed option
Factory installed option
LAREMD10/15 − 47 lbs. (21 kg)
LAOAH10/15 − 11 lbs. (5 kg)
(2) 16 x 25 x 1 in. (406 x 635 x 25 mm)
LTADEK03/36
LTASEK03/36
See Intelligent Unit Controller Features, Page 4
See Intelligent Unit Controller Features, Page 4
LAGED10/15 − 8 lbs. (4 kg)
LAGEH09/15
LAGEDH03/15 − 8 lbs. (4 kg)
LAOADM10/15 − 31 lbs. (14 kg)
LAOAD10/15 − 26 lbs. (12 kg)
LAOAH10/15 − 11 lbs. (5 kg)
(2) 16 x 25 x 1 in. (406 x 635 x 25 mm)
LAPEF10/15 − 28 lbs. (13 kg)
Factory installed option
30M38
LTAGFIK10/15
AFK−11 (18 x 24 x 2 order four per unit)
LTACAIK10/15
45L78
LTALPGK−130 − Standard Heat, LTALPGK−180 − Medium Heat
LTALPGK−240 − High Heat
%
Factory installed option
LTAWEK10/15
Factory installed option
%
%
%
%
%
%
%
%
%
%
17M50
LTIAQSDMK03/36
LTAIAQSWDK03/36
LTAIAQSWN03/36
LTAIAQSND03/36
LTAIAQSDMBN03/36
LTIAQABD03/36
LTAIAQSHM03/36
LARMF10/15-14 − 126 lbs. (57 kg)
LARMF10/15-24 − 174 lbs. (79 kg)
S
SPECIFICATIONS − STANDARD EFFICIENCY COOLING
General
D t
Data
Nominal Tonnage
7.5 Ton
7.5 − 8.5 TON
8.5 Ton
LGC102S2B
Model No.
LGC090S2B
Efficiency Type
Standard
Standard
Gross Cooling Capacity − Btuh (kW)
96,000 (28.1)
106,000 (31.1)
Cooling
g
1 Net Cooling Capacity − Btuh (kW)
P f
Performance
93,000 (27.3)
102,000 (29.9)
ARI Rated Air Flow − cfm (L/s)
3000 (1415)
3400 (1605)
3 Sound Rating Number (dB)
88
88
Total Unit Power (kW)
9.0
9.9
1 EER (Btuh/Watt)
10.3
10.3
2 Integrated Part Load Value (Btuh/Watt)
10.8
10.4
Circuit 1
6 lbs. 0 oz. (2.72 kg)
6 lbs. 0 oz. (2.72 kg)
Refrigerant
g
Charge
g Furnished R−22
Circuit 2
6 lbs. 0 oz. (2.72 kg)
6 lbs. 0 oz. (2.72 kg)
Circuit 1
Not Available
Not Available
Refrigerant
g
Charge
g Furnished R−410A
Circuit 2
Not Available
Not Available
Circuit 1
Not Available
Not Available
Refrigerant
g
Charge
g Furnished R−22
w// H
Humiditrol
idit l O
Option
ti
Circuit 2
Not Available
Not Available
Two−Stage Heat Input Type
Standard
Medium
High
Standard
Medium
High
Gas Heating
g
P f
Performance
First Stage 84,500 (24.8) 117,000 (34.3) 156,000 (45.7) 84,500 (24.8) 117,000 (34.3) 156,000 (45.7)
Input
p − Btuh ((kW))
Second Stage 130,000 (38.1) 180,000 (52.7) 240,000 (70.3) 130,000 (38.1) 180,000 (52.7) 240,000 (70.3)
Output − Btuh (kW) Second Stage 104,000 (30.5) 144,000 (42.2) 192,000 (56.3) 104,000 (30.5) 144,000 (42.2) 192,000 (56.3)
CSA Thermal Efficiency
80.0%
80.0%
Gas Supply Connections
3/4 in. npt
3/4 in. npt
Recommended Gas Supply Pressure − Natural
7 in. w.c. (1.7 kPa)
7 in. w.c. (1.7 kPa)
LPG/Propane
11 in. w.c. (2.7 kPa)
11 in. w.c. (2.7 kPa)
Compressor Type (No.)
Scroll (2)
Scroll (2)
Net face area − sq. ft. (m2)
29.3 (2.72) total
29.3 (2.72) total
Condenser
C il
Coil
Tube diameter − in. (mm)
3/8 (9.5)
3/8 (9.5)
Number of rows
1
1
Fins per inch (m)
20 (787)
20 (787)
Motor horsepower (W)
(2) 1/3 (249)
(2) 1/3 (249)
Condenser
F
Fans
Motor rpm
1075
1075
Total Motor watts
700
700
Diameter − in. (mm) − no. of blades
(2) − 24 (610) − 3
(2) 24 (610) − 3
Total air volume − cfm (L/s)
8,000 (3775)
8,000 (3775)
Net face area − sq. ft. (m2)
10.5 (0.98) total
10.5 (0.98) total
Evaporator
p
C il
Coil
Tube diameter − in. (mm) − No. of rows
3/8 (9.5) − 3
3/8 (9.5) − 3
Fins per inch (m)
14 (551)
14 (551)
Drain connection − no. & size
(1) 1 in. NPT coupling
(1) 1 in. NPT coupling
Expansion device type
Balanced Port Thermostatic Expansion Valve, removeable power head
4 Indoor
Nominal motor output
2 hp (1.5 kW), 3 hp (2.2 kW), 5 hp (3.7 kW)
Bl
Blower
and
d
Maximum usable motor output
2.3 hp (1.7 kW), 3.45 hp (2.6 kW), 5.75 hp (4.3 kW)
Drive
Motor − Drive kit
2 hp
2 hp
Selection
kit #1 − 680 − 925 rpm
kit #1 − 680 − 925 rpm
kit #3 − 895 − 1120 rpm
kit #3 − 895 − 1120 rpm
Wheelnominaldiameterxwidth−in.(mm)
Type of filter
Number and size − in. (mm)
Electrical characteristics
Filters
3 hp
kit #1 − 680 − 925 rpm
kit #2 − 680 − 925 rpm
kit #3 − 895 − 1120 rpm
kit #4 − 895 − 1120 rpm
kit #5 − 1110 − 1395 rpm
kit #6 − 1110 − 1395 rpm
3 hp
kit #1 − 680 − 925 rpm
kit #2 − 680 − 925 rpm
kit #3 − 895 − 1120 rpm
kit #4 − 895 − 1120 rpm
kit #5 − 1110 − 1395 rpm
kit #6 − 1110 − 1395 rpm
5 hp
kit #4 − 895 − 1120 rpm
kit #6 − 1110 − 1395 rpm
5 hp
kit #4 − 895 − 1120 rpm
kit #6 − 1110 − 1395 rpm
(1) 15 x 15 (381 x 381)
(1) 15 x 15 (381 x 381)
Disposable, pleated MERV 7 (standard) or MERV 11 (optional)
(4) 18 x 24 x 2 (457 x 610 x 51)
208/230V, 460V or 575V − 60 hertz − 3 phase
NOTE − Net capacity includes evaporator blower motor heat deduction. Gross capacity does not include evaporator blower motor heat deduction.
1 Certified in accordance with the ULE certification program, which is based on ARI Standard 340/360, 95F (35C) outdoor air temperature and 80F (27C) db/67F
(19C) wb entering evaporator air; minimum external duct static pressure.
2 Integrated Part Load Value rated at 80F (27C) outdoor air temperature.
3 Sound Rating Number rated in accordance with test conditions included in ARI Standard 270.
4 Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor output required. Maximum usable output of
motors furnished by Lennox are shown. In Canada, nominal motor output is also maximum usable motor output. If motors of comparable output are used, be sure to keep
within the service factor limitations outlined on the motor nameplate.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 9
SPECIFICATIONS − STANDARD EFFICIENCY COOLING
General
D t
Data
Cooling
Performance
Nominal Tonnage
Model No.
Efficiency Type
Gross Cooling Capacity − Btuh (kW)
1 Net
Cooling Capacity − Btuh (kW)
ARI Rated Air Flow − cfm (L/s)
3 Sound
Rating Number (dB)
Total Unit Power (kW)
1 EER
2 Integrated
(Btuh/Watt)
Part Load Value (Btuh/Watt)
Refrigerant
g
Charge
g Furnished R−22
Circuit 1
Circuit 2
Refrigerant
g
Charge
g Furnished R−410A
Circuit 1
Circuit 2
Refrigerant
g
Charge
g Furnished R−22
Circuit 1
w// H
Humiditrol
idit l O
Option
ti
Circuit 2
Gas Heating
g
Two−Stage Heat Input Type
P f
Performance
Input
p − Btuh ((kW))
First Stage
Second Stage
Output − Btuh (kW) Second Stage
CSA Thermal Efficiency
Gas Supply Connections
Recommended Gas Supply Pressure − Natural
LPG/Propane
Compressor Type (No.)
Condenser
Net face area − sq. ft. (m2)
C il
Coil
Tube diameter − in. (mm)
Number of rows
Fins per inch (m)
Condenser
Motor horsepower (W)
F
Fans
Motor rpm
Total Motor watts
Diameter − in. (mm) − no. of blades
Total air volume − cfm (L/s)
Evaporator
p
Net face area − sq. ft. (m2)
C il
Coil
Tube diameter − in. (mm) − No. of rows
Fins per inch (m)
Drain connection − no. & size
Expansion device type
4 Indoor
Nominal motor output
Bl
Blower
and
d
Maximum usable motor output
Drive
Motor − Drive kit
Selection
10 Ton
10 − 12.5 TON
12.5 ton
LGC120S2B (R−22)
LGC150S2B
LGC120S4B (R−410A)
Standard
Standard
126,000 (36.6) (R−22)
145,000 (42.5)
128,000 (37.5) (R−410A)
120,000 (35.2) (R−22)
138,000 (40.4)
122,000 (35.7) (R−410A)
3800 (1795) (R−22)
4250 (2005)
3600 (1700) (R−410A)
88
88
11.6 (R−22)
14.5
11.8 (R−410A)
10.3
9.5
10.5 (R−22)
9.2
11.3 (R−410A)
10 lbs. 0 oz. (4.53 kg)
14 lbs. 0 oz. (6.35 kg)
10 lbs. 0 oz. (4.53 kg)
14 lbs. 0 oz. (6.35 kg)
11 lbs. 8 oz. (5.22 kg)
Not Available
11 lbs. 8 oz. (5.22 kg)
Not Available
Not Available
14 lbs. 8 oz. (6.58 kg)
Not Available
14 lbs. 0 oz. (6.35 kg)
Standard
Medium
High
Standard
Medium
High
84,500 (24.8) 117,000 (34.3) 156,000 (45.7) 84,500 (24.8) 117,000 (34.3) 156,000 (45.7)
130,000 (38.1) 180,000 (52.7) 240,000 (70.3) 130,000 (38.1) 180,000 (52.7) 240,000 (70.3)
104,000 (30.5) 144,000 (42.2) 192,000 (56.3) 104,000 (30.5) 144,000 (42.2) 192,000 (56.3)
80.0%
80.0%
3/4 in. NPT
3/4 in. NPT
7 in. w.c. (1.7 kPa)
7 in. w.c. (1.7 kPa)
11 in. w.c. (2.7 kPa)
11 in. w.c. (2.7 kPa)
Scroll (2)
Scroll (2)
29.3 (2.72) total
26.6 (2.47) total
3/8 (9.5)
3/8 (9.5)
2
3
20 (787)
20 (787)
(2) 1/3 (249)
(2) 1/2 (372)
1075
1075
700
1150
(2) − 24 (610) − 3
(2) 24 (610) − 3
8,000 (3775)
9,000 (4245)
10.5 (0.98) total
10.5 (0.98) total
3/8 (9.5) − 4
3/8 (9.5) − 4
14 (551)
14 (551)
(1) 1 in. NPT coupling
(1) 1 in. NPT coupling
Balanced Port Thermostatic Expansion Valve, removeable power head
2 hp (1.5 kW), 3 hp (2.2 kW), 5 hp (3.7 kW)
2.3 hp (1.7 kW), 3.45 hp (2.6 kW), 5.75 hp (4.3 kW)
2 hp
2 hp
kit #1 − 680 − 925 rpm
kit #1 − 680 − 925 rpm
kit #3 − 895 − 1120 rpm
kit #3 − 895 − 1120 rpm
3 hp
kit #1 − 680 − 925 rpm
kit #2 − 680 − 925 rpm
kit #3 − 895 − 1120 rpm
kit #4 − 895 − 1120 rpm
kit #5 − 1110 − 1395 rpm
kit #6 − 1110 − 1395 rpm
Wheelnominaldiameterxwidth−in.(mm)
Type of filter
Number and size − in. (mm)
Electrical characteristics
Filters
3 hp
kit #1 − 680 − 925 rpm
kit #2 − 680 − 925 rpm
kit #3 − 895 − 1120 rpm
kit #4 − 895 − 1120 rpm
kit #5 − 1110 − 1395 rpm
kit #6 − 1110 − 1395 rpm
5 hp
5 hp
kit #4 − 895 − 1120 rpm
kit #4 − 895 − 1120 rpm
kit #6 − 1110 − 1395 rpm
kit #6 − 1110 − 1395 rpm
(1) 15 x 15 (381 x 381)
(1) 15 x 15 (381 x 381)
Disposable, pleated MERV 7 (standard) or MERV 11 (optional)
(4) 18 x 24 x 2 (457 x 610 x 51)
(4) 18 x 24 x 2 (457 x 610 x 51)
208/230V, 460V or 575V − 60 hertz − 3 phase
NOTE − Net capacity includes evaporator blower motor heat deduction. Gross capacity does not include evaporator blower motor heat deduction.
1 Certified in accordance with the ULE certification program, which is based on ARI Standard 340/360, 95F (35C) outdoor air temperature and 80F (27C) db/67F
(19C) wb entering evaporator air; minimum external duct static pressure.
2 Integrated Part Load Value rated at 80F (27C) outdoor air temperature.
3 Sound Rating Number rated in accordance with test conditions included in ARI Standard 270.
4 Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor output required. Maximum usable output of
motors furnished by Lennox are shown. In Canada, nominal motor output is also maximum usable motor output. If motors of comparable output are used, be sure to keep
within the service factor limitations outlined on the motor nameplate.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 10
SPECIFICATIONS − HIGH EFFICIENCY COOLING
7.5 − 8.5 TON
General
Data
Nominal Tonnage
7.5 Ton
8.5 Ton
Model No.
LGA090H2B
LGA102H2B
Cooling Efficiency Type
High
High
Cooling
g
Gross Cooling Capacity − Btuh (kW)
93,800 (27.5)
105,000 (30.8)
1 Net Cooling Capacity − Btuh (kW)
P f
Performance
90,000 (26.4)
101,000 (29.6)
ARI Rated Air Flow − cfm (L/s)
2900 (1370)
3200 (1510)
3 Sound Rating Number (dB)
88
88
Total Unit Power (kW)
8.0
9.0
1 EER (Btuh/Watt)
11.3
11.2
2 Integrated Part Load Value (Btuh/Watt)
12.0
11.7
Refrigerant
g
Charge
g FurCircuit 1
10 lbs. 0 oz. (4.54 kg)
10 lbs. 8 oz. (4.76 kg)
nished (R-22)
(R 22)
Circuit 2
10 lbs. 0 oz. (4.54 kg)
10 lbs. 8 oz. (4.76 kg)
Refrigerant
g
Charge
g Furnished
Circuit 1
12 lbs. 0 oz. (5.44 kg)
12 lbs. 0 oz. (5.44 kg)
w/ Humiditrol Option (R-22)
(R 22)
Circuit 2
10 lbs. 0 oz. (4.54 kg)
10 lbs. 8 oz. (4.76 kg)
Gas Heating
g
Two Stage Gas Heat Input Type
Standard
Medium
High
Standard
Medium
High
Performance
Input
p − Btuh ((kW))
First Stage 84,500 (24.8) 117,000 (34.3) 156,000 (45.7) 84,500 (24.8) 117,000 (34.3) 156,000 (45.7)
Second Stage 130,000 (38.1) 180,000 (52.7) 240,000 (70.3) 130,000 (38.1) 180,000 (52.7) 240,000 (70.3)
Output − Btuh (kW) Second Stage 104,000 (30.5) 144,000 (42.2) 192,000 (56.3) 104,000 (30.5) 144,000 (42.2) 192,000 (56.3)
CSA Thermal Efficiency
80.0%
80.0%
Gas Supply Connections
3/4 in. npt
3/4 in. npt
Recommended Gas Supply Pressure Natural
7 in. w.c. (1.7 kPa)
7 in. w.c. (1.7 kPa)
LPG/Propane
11 in. w.c. (2.7 kPa)
11 in. w.c. (2.7 kPa)
Compressor Type (No.)
Scroll (2)
Scroll (2)
Condenser
Net face area − sq. ft. (m2)
29.3 (2.72) total
29.3 (2.72) total
C il
Coil
Tube diameter − in. (mm)
3/8 (9.5)
3/8 (9.5)
Number of rows
2
2
Fins per inch (m)
20 (787)
20 (787)
Condenser
Motor horsepower (W)
(2) 1/3 (249)
(2) 1/3 (249)
F
Fans
Motor rpm
1075
1075
Total Motor watts
700
700
Diameter − in. (mm) − number of blades
(2) 24 (610) − 3
(2) 24 (610) − 3
Total Air volume − cfm (L/s)
8,000 (3775)
8,000 (3775)
Evaporator
p
Net face area − sq. ft. (m2)
10.5 (0.98) total
10.5 (0.98) total
C il
Coil
Tube diameter − in. (mm)
3/8 (9.5)
3/8 (9.5)
Number of rows
3
3
Fins per inch (m)
14 (551)
14 (551)
Condensate Drain − number and size
(1) 1 in. NPT coupling
(1) 1 in. NPT coupling
Expansion device type
Balanced Port Thermostatic Expansion Valve, removeable power head
4 Indoor
Belt Drive − Nominal motor output
2 hp (1.5 kW)
2 hp (1.5 kW)
3 hp (2.2 kW)
3 hp (2.2 kW)
Blower and
5 hp (3.7 kW)
5 hp (3.7 kW)
Drive
Maximum usable output
2.3 hp (1.7 kW)
2.3 hp (1.7 kW)
Selection
(US Only)
3.45 hp (2.6 kW)
3.45 hp (2.6 kW)
5.75 hp (4.3 kW)
5.75 hp (4.3 kW)
Motor − Drive kit
2 hp
2 hp
kit #1 − 680 − 925 rpm
kit #1 − 680 − 925 rpm
kit #3 − 895 − 1120 rpm
kit #3 − 895 − 1120 rpm
3 hp
kit #1 − 680 − 925 rpm
kit #2 − 680 − 925 rpm
kit #3 − 895 − 1120 rpm
kit #4 − 895 − 1120 rpm
kit #5 − 1110− 1395 rpm
kit #6 − 1110− 1395 rpm
Wheelnominaldiameterxwidth−in.(mm)
Type of filter
Number and size − in. (mm)
Electrical characteristics
Filters
3 hp
kit #1 − 680 − 925 rpm
kit #2 − 680 − 925 rpm
kit #3 − 895 − 1120 rpm
kit #4 − 895 − 1120 rpm
kit #5 − 1110 − 1395 rpm
kit #6 − 1110 − 1395 rpm
5 hp
5 hp
kit #4 − 895 − 1120 rpm
kit #4 − 895 − 1120 rpm
kit #6 − 1110 − 1395 rpm
kit #6 − 1110 − 1395 rpm
(1) 15 x 15 (381 x 381)
(1) 15 x 15 (381 x 381)
Disposable, pleated MERV 7 (standard) or MERV 11 (optional)
(4) 18 x 24 x 2 (457 x 610 x 51)
208/230V, 460V or 575V − 60 hertz − 3 phase
NOTE − Net capacity includes evaporator blower motor heat deduction. Gross capacity does not include evaporator blower motor heat deduction.
1 Certified in accordance with the ULE certification program, which is based on ARI Standard 340/360, 95F (35C) outdoor air temperature and 80F (27C) db/67F
(19C) wb entering evaporator air; minimum external duct static pressure.
2 Integrated Part Load Value rated at 80F (27C) outdoor air temperature.
3 Sound Rating Number rated in accordance with test conditions included in ARI Standard 270.
4 Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor output required. Maximum usable output of
motors furnished by Lennox are shown. In Canada, nominal motor output is also maximum usable motor output. If motors of comparable output are used, be sure to keep
within the service factor limitations outlined on the motor nameplate.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 11
SPECIFICATIONS − HIGH EFFICIENCY COOLING
General
Data
Nominal Tonnage
Model No.
Cooling Efficiency Type
Cooling
g
Gross Cooling Capacity − Btuh (kW)
1 Net Cooling Capacity − Btuh (kW)
P f
Performance
ARI Rated Air Flow − cfm (L/s)
3 Sound Rating Number (dB)
Total Unit Power (kW)
1 EER (Btuh/Watt)
2 Integrated Part Load Value (Btuh/Watt)
Refrigerant
g
Charge
g FurCircuit 1
nished (R-22)
(R 22)
Circuit 2
Refrigerant
g
Charge
g Furnished
Circuit 1
w/ Humiditrol Option (R-22)
(R 22)
Circuit 2
Gas Heating
g
Two−Stage Gas Heat Input Type
Performance
Input − Btuh (kW)
First Stage
Second Stage
Output − Btuh (kW) Second Stage
CSA Thermal Efficiency
Gas Supply Connections
Recommended Gas Supply Pressure Natural
LPG/Propane
Compressor Type (No.)
Condenser
Net face area − sq. ft. (m2)
C il
Coil
Tube diameter − in. (mm)
Number of rows
Fins per inch (m)
Condenser
Motor horsepower (W)
F
Fans
Motor rpm
Total Motor watts
Diameter − in. (mm) − number of blades
Total Air volume − cfm (L/s)
Evaporator
p
Net face area − sq. ft. (m2)
C il
Coil
Tube diameter − in. (mm)
Number of rows
Fins per inch (m)
Condensate Drain − number and size
Expansion device type
4 Indoor
Belt Drive − Nominal motor output
Blower and
Drive
Maximum usable output
Selection
(US Only)
Motor − Drive kit
Standard
84,500 (24.8)
130,000 (38.1)
104,000 (30.5)
Balanced Port
10 TON
10 Ton
LGA120H2B
High
125,000 (36.6)
120,000 (35.2)
3600 (1700)
88
10.9
11.0
11.8
11 lbs. 8 oz. (5.22 kg)
11 lbs. 8 oz. (5.22 kg)
13 lbs. 8 oz. (6.12 kg)
11 lbs. 8 oz. (5.23 kg)
Medium
High
117,000 (34.3)
156,000 (45.7)
180,000 (52.7)
240,000 (70.3)
144,000 (42.2)
192,000 (56.3)
80.0%
3/4 in. NPT
7 in. w.c. (1.7 kPa)
11 in. w.c. (2.7 kPa)
Scroll (2)
29.3 (2.72) total
3/8 (9.5)
2
20 (787)
(2) 1/3 (249)
1075
700
(2) 24 (610) − 3
8,000 (3775)
10.5 (0.98) total
3/8 (9.5)
4
14 (551)
(1) 1 in. NPT coupling
Thermostatic Expansion Valve, removeable power head
2 hp (1.5 kW)
3 hp (2.2 kW)
5 hp (3.7 kW)
2.3 hp (1.7 kW)
3.45 hp (2.6 kW)
5.75 hp (4.3 kW)
2 hp
kit #1 − 680 − 925 rpm
kit #3 − 895 − 1120 rpm
3 hp
kit #1 − 680 − 925 rpm
kit #2 − 680 − 925 rpm
kit #3 − 895 − 1120 rpm
kit #4 − 895 − 1120 rpm
kit #5 − 1110 − 1395 rpm
kit #6 − 1110 − 1395 rpm
Wheelnominaldiameterxwidth−in.(mm)
Type of filter
Number and size − in. (mm)
Electrical characteristics
Filters
5 hp
kit #4 − 895 − 1120 rpm
kit #6 − 1110 − 1395 rpm
(1) 15 x 15 (381 x 381)
Disposable, pleated MERV 7 (standard) or MERV 11 (optional)
(4) 18 x 24 x 2 (457 x 610 x 51)
208/230V, 460V or 575V − 60 hertz − 3 phase
NOTE − Net capacity includes evaporator blower motor heat deduction. Gross capacity does not include evaporator blower motor heat deduction.
1 Certified in accordance with the ULE certification program, which is based on ARI Standard 340/360, 95F (35C) outdoor air temperature and 80F (27C) db/67F
(19C) wb entering evaporator air; minimum external duct static pressure.
2 Integrated Part Load Value rated at 80F (27C) outdoor air temperature.
3 Sound Rating Number rated in accordance with test conditions included in ARI Standard 270.
4 Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor output required. Maximum usable output of
motors furnished by Lennox are shown. In Canada, nominal motor output is also maximum usable motor output. If motors of comparable output are used, be sure to keep
within the service factor limitations outlined on the motor nameplate.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 12
COOLING RATINGS
NOTE − For Temperatures and Capacities not shown in tables, see bulletin − Cooling Unit Rating Table Correction Factor Data in Miscellaneous Engineering Data section.
7.5 TON STANDARD EFFICIENCY − LGC090S − ONE COMPRESSOR OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
T
Temperature
Total
Ai
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
2400
3000
3600
2400
3000
3600
2400
3000
3600
65_F (18_C)
Total
Cooling
Capacity
L/s kBtuh kW
1135
1415
1700
1135
1415
1700
1135
1415
1700
50.9
52.8
54.4
54.1
55.9
57.1
57.5
59.3
60.5
14.9
15.5
15.9
15.9
16.4
16.7
16.9
17.4
17.7
75_F (24_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
2.54
.59
2.58
.64
2.61
.70
2.60
.47
2.64
.49
2.66
.52
2.67
.36
2.71
.37
2.74
.38
80_F
27_C
.74
.83
.91
.57
.61
.67
.46
.48
.51
Total
Cooling
Capacity
85_F (29_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
85_F
75_F
kBtuh kW Input
29_C
24_C
.90
49.3 14.4 2.83
.60
.99
51.2 15.0 2.87
.65
1.00 52.8 15.5 2.90
.71
.70
52.4 15.4 2.89
.48
.79
54.1 15.9 2.93
.50
.87
55.3 16.2 2.96
.52
.55
55.7 16.3 2.96
.36
.59
57.4 16.8 3.00
.37
.64
58.5 17.1 3.03
.38
80_F
27_C
.76
.85
.93
.58
.62
.69
.46
.49
.51
Total
Cooling
Capacity
85_F
kBtuh kW
29_C
.92
47.7 14.0
1.00 49.5 14.5
1.00 51.0 14.9
.71
50.7 14.9
.81
52.2 15.3
.89
53.4 15.6
.56
53.9 15.8
.60
55.4 16.2
.66
56.5 16.6
95_F (35_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
3.16
.61
3.20
.66
3.23
.73
3.22
.48
3.26
.50
3.29
.53
3.30
.36
3.34
.37
3.36
.38
80_F
27_C
.77
.87
.95
.59
.64
.70
.46
.49
.52
Total
Cooling
Capacity
85_F
kBtuh kW
29_C
.94
46.0 13.5
1.00 47.8 14.0
1.00 49.2 14.4
.73
48.8 14.3
.83
50.3 14.7
.92
51.4 15.1
.56
51.9 15.2
.61
53.3 15.6
.68
54.3 15.9
Sensible To Total
Comp
Ratio (S/T)
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
3.54
.62
.79
.97
3.58
.68
.89
1.00
3.61
.75
.97
1.00
3.61
.48
.59
.75
3.64
.51
.65
.85
3.67
.54
.73
.94
3.69
.36
.47
.57
3.72
.37
.50
.62
3.75
.38
.53
.70
7.5 TON STANDARD EFFICIENCY − LGC090S − ALL COMPRESSORS OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
T
Temperature
Total
Ai
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
2400
3000
3600
2400
3000
3600
2400
3000
3600
85_F (29_C)
Total
Cooling
Capacity
L/s kBtuh kW
1135
1415
1700
1135
1415
1700
1135
1415
1700
91.3
94.7
97.6
96.9
99.9
102.1
103.0
106.0
108.0
26.8
27.8
28.6
28.4
29.3
29.9
30.2
31.1
31.7
95_F (35_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
6.35
.67
6.43
.72
6.49
.78
6.47
.53
6.55
.55
6.60
.58
6.62
.40
6.70
.41
6.75
.42
80_F
27_C
.81
.89
.96
.64
.69
.75
.51
.54
.57
Total
Cooling
Capacity
105_F (41_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
85_F
75_F
kBtuh kW Input
29_C
24_C
.95
88.1 25.8 7.11
.68
1.00 91.4 26.8 7.19
.73
1.00 94.1 27.6 7.25
.79
.77
93.4 27.4 7.24
.53
.86
96.2 28.2 7.31
.56
.93
98.2 28.8 7.36
.59
.62
99.3 29.1 7.40
.40
.67 102.0 29.9 7.47
.41
.73 103.9 30.5 7.53
.42
80_F
27_C
.83
.91
.98
.66
.71
.77
.51
.55
.58
Total
Cooling
Capacity
85_F
kBtuh kW
29_C
.97
84.6 24.8
1.00 87.7 25.7
1.00 90.6 26.6
.79
89.5 26.2
.88
92.3 27.1
.95
94.2 27.6
.63
95.3 27.9
.69
97.8 28.7
.75
99.5 29.2
115_F (46_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
7.99
.69
8.07
.75
8.14
.81
8.13
.54
8.20
.57
8.26
.60
8.29
.40
8.36
.41
8.42
.43
80_F
27_C
.85
.94
.99
.67
.72
.79
.52
.56
.59
Total
Cooling
Capacity
85_F
kBtuh kW
29_C
.99
80.9 23.7
1.00 83.9 24.6
1.00 86.9 25.5
.81
85.7 25.1
.90
88.1 25.8
.97
89.9 26.3
.64
91.1 26.7
.70
93.3 27.3
.77
94.8 27.8
Sensible To Total
Comp
Ratio (S/T)
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
9.01
.70
.87
1.00
9.09
.77
.96
1.00
9.18
.84
1.00
1.00
9.15
.55
.68
.83
9.23
.58
.74
.93
9.30
.61
.82
.99
9.32
.40
.53
.66
9.40
.42
.57
.72
9.46
.43
.61
.79
7.5 TON HIGH EFFICIENCY − LGA090H − ONE COMPRESSOR OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
Temperature
Total
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
2400
3000
3600
2400
3000
3600
2400
3000
3600
65_F (18_C)
Total
Cooling
Capacity
L/s kBtuh kW
1135
1415
1700
1135
1415
1700
1135
1415
1700
48.6
50.5
52.1
51.8
53.5
54.7
55.2
56.9
58.0
14.2
14.8
15.3
15.2
15.7
16.0
16.2
16.7
17.0
Sensible To Total
Ratio (S/T)
75_F (24_C)
Sensible To Total
Ratio (S/T)
85_F (29_C)
Total
Cooling
Capacity
Sensible To Total
Ratio (S/T)
95_F (35_C)
Sensible To Total
Ratio (S/T)
Comp
Comp
Comp
Comp
Motor
Motor
Motor
Motor
Dry Bulb
Dry Bulb
Dry Bulb
Dry Bulb
kW
kW
kW
kW
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
kBtuh kW
kBtuh kW
kBtuh kW
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
2.09
.63
.78
.94
47.2 13.8 2.36
.63
.80
.96
45.7 13.4 2.67
.64
.81
.98
44.1 12.9 3.02
.65
.83
.99
2.10
.68
.87
1.00 49.0 14.4 2.37
.69
.89
1.00 47.5 13.9 2.68
.70
.91
1.00 45.8 13.4 3.02
.72
.93
1.00
2.10
.74
.95
1.00 50.6 14.8 2.38
.75
.96
1.00 49.0 14.4 2.68
.77
.98
1.00 47.4 13.9 3.03
.79
1.00
1.00
2.10
.49
.61
.74
50.2 14.7 2.38
.50
.61
.75
48.6 14.2 2.68
.50
.62
.77
46.9 13.7 3.03
.51
.63
.79
2.12
.52
.65
.83
51.8 15.2 2.39
.52
.66
.85
50.1 14.7 2.69
.53
.67
.87
48.3 14.2 3.04
.54
.69
.89
2.12
.55
.71
.91
53.0 15.5 2.39
.55
.73
.93
51.2 15.0 2.70
.56
.75
.95
49.3 14.4 3.04
.57
.77
.97
2.12
.37
.48
.58
53.6 15.7 2.39
.37
.48
.59
51.9 15.2 2.70
.38
.49
.60
50.0 14.7 3.05
.38
.49
.61
2.13
.38
.50
.63
55.2 16.2 2.40
.38
.51
.64
53.4 15.6 2.71
.38
.52
.65
51.4 15.1 3.05
.39
.53
.66
2.14
.39
.53
.68
56.3 16.5 2.41
.39
.54
.70
54.4 15.9 2.71
.40
.55
.72
52.4 15.4 3.06
.40
.56
.74
Total
Cooling
Capacity
Total
Cooling
Capacity
7.5 TON HIGH EFFICIENCY − LGA090H − ALL COMPRESSORS OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
Temperature
63F
(17C)
67F
(19C)
71F
(22C)
Total
Air
Volume
85_F (29_C)
Total
Cooling
Capacity
cfm
L/s kBtuh kW
2400
3000
3600
2400
3000
3600
2400
3000
3600
1135 88.6 26.0
1415 92.1 27.0
1700 94.9 27.8
1135 94.3 27.6
1415 97.3 28.5
1700 99.4 29.1
1135 100.6 29.5
1415 103.6 30.4
1700 105.6 30.9
Sensible To Total
Ratio (S/T)
95_F (35_C)
Sensible To Total
Ratio (S/T)
105_F (41_C)
Total
Cooling
Capacity
Sensible To Total
Ratio (S/T)
115_F (46_C)
Sensible To Total
Ratio (S/T)
Comp
Comp
Comp
Comp
Motor
Motor
Motor
Motor
Dry Bulb
Dry Bulb
Dry Bulb
Dry Bulb
kW
kW
kW
kW
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
kBtuh kW
kBtuh kW
kBtuh kW
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
5.41
.68
.83
.97
85.5 25.1 6.12
.69
.84
.98
82.2 24.1 6.91
.70
.86
1.00 78.7 23.1 7.80
.71
.89
1.00
5.43
.73
.91
1.00 88.8 26.0 6.13
.74
.93
1.00 85.5 25.1 6.93
.76
.95
1.00 81.8 24.0 7.83
.78
.97
1.00
5.44
.79
.98
1.00 91.8 26.9 6.15
.81
.99
1.00 88.5 25.9 6.94
.83
1.00
1.00 85.0 24.9 7.85
.85
1.00
1.00
5.44
.53
.65
.79
91.0 26.7 6.14
.54
.66
.80
87.3 25.6 6.94
.54
.68
.82
83.6 24.5 7.85
.55
.69
.85
5.46
.56
.70
.87
93.8 27.5 6.17
.57
.72
.89
90.1 26.4 6.96
.57
.74
.92
86.1 25.2 7.87
.59
.76
.94
5.48
.59
.77
.95
95.8 28.1 6.17
.60
.78
.96
92.0 27.0 6.98
.61
.80
.98
88.0 25.8 7.89
.62
.83
.99
5.48
.40
.51
.63
97.0 28.4 6.18
.40
.52
.64
93.3 27.3 6.98
.40
.53
.65
89.3 26.2 7.88
.41
.54
.66
5.50
.41
.55
.68
99.8 29.2 6.20
.41
.55
.70
95.9 28.1 7.00
.42
.56
.71
91.7 26.9 7.91
.42
.57
.73
5.51
.42
.58
.74 101.8 29.8 6.21
.42
.59
.76
97.6 28.6 7.02
.43
.60
.78
93.4 27.4 7.92
.43
.61
.80
Total
Cooling
Capacity
Total
Cooling
Capacity
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 13
COOLING RATINGS
NOTE − For Temperatures and Capacities not shown in tables, see bulletin − Cooling Unit Rating Table Correction Factor Data in Miscellaneous Engineering Data section.
8.5 TON STANDARD EFFICIENCY − LGC102S − ONE COMPRESSOR OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
T
Temperature
Total
Ai
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
2720
3400
4080
2720
3400
4080
2720
3400
4080
65_F (18_C)
Total
Cooling
Capacity
L/s kBtuh kW
1285
1605
1925
1285
1605
1925
1285
1605
1925
52.9
54.8
56.4
56.1
57.8
59.0
59.7
61.4
62.5
15.5
16.1
16.5
16.4
16.9
17.3
17.5
18.0
18.3
75_F (24_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
2.72
.64
2.76
.69
2.78
.75
2.78
.51
2.81
.53
2.84
.56
2.85
.38
2.89
.39
2.91
.40
80_F
27_C
.79
.88
.95
.62
.67
.73
.49
.52
.55
Total
Cooling
Capacity
85_F (29_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
85_F
75_F
kBtuh kW Input
29_C
24_C
.95
51.2 15.0 3.01
.65
1.00 53.1 15.6 3.05
.70
1.00 54.6 16.0 3.09
.77
.76
54.3 15.9 3.08
.51
.84
55.9 16.4 3.12
.54
.92
57.1 16.7 3.14
.57
.60
57.8 16.9 3.15
.38
.65
59.4 17.4 3.19
.39
.70
60.4 17.7 3.22
.41
80_F
27_C
.81
.90
.97
.63
.68
.74
.50
.53
.56
Total
Cooling
Capacity
85_F
kBtuh kW
29_C
.96
49.4 14.5
1.00 51.2 15.0
1.00 52.8 15.5
.77
52.4 15.4
.86
53.9 15.8
.94
55.1 16.1
.61
55.8 16.4
.66
57.2 16.8
.72
58.3 17.1
95_F (35_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
3.36
.66
3.39
.72
3.43
.79
3.42
.52
3.46
.55
3.48
.58
3.50
.39
3.53
.40
3.56
.41
80_F
27_C
.83
.92
.99
.64
.70
.76
.50
.53
.57
Total
Cooling
Capacity
85_F
kBtuh kW
29_C
.98
47.5 13.9
1.00 49.3 14.4
1.00 50.9 14.9
.79
50.4 14.8
.88
51.8 15.2
.96
52.9 15.5
.62
53.6 15.7
.67
55.0 16.1
.74
56.0 16.4
Sensible To Total
Comp
Ratio (S/T)
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
3.74
.67
.85
1.00
3.78
.74
.94
1.00
3.82
.81
1.00
1.00
3.81
.52
.65
.81
3.84
.55
.71
.91
3.87
.59
.78
.98
3.89
.39
.51
.63
3.92
.40
.54
.69
3.95
.41
.58
.76
8.5 TON STANDARD EFFICIENCY − LGC102S − ALL COMPRESSORS OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
T
Temperat
t
ure
Total
Ai
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
2720
3400
4080
2720
3400
4080
2720
3400
4080
85_F (29_C)
Total
Cooling
Capacity
L/s kBtuh kW
1285
1605
1925
1285
1605
1925
1285
1605
1925
97.2
100.8
103.8
103.1
106.2
108.5
109.8
112.7
114.8
28.5
29.5
30.4
30.2
31.1
31.8
32.2
33.0
33.6
95_F (35_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
7.01
.67
7.09
.72
7.16
.78
7.14
.53
7.23
.56
7.28
.59
7.31
.39
7.38
.41
7.44
.42
80_F
27_C
.83
.91
.98
.65
.70
.76
.51
.54
.58
85_F
29_C
.97
1.00
1.00
.79
.87
.95
.63
.68
.74
Total
Cooling
Capacity
kBtuh
93.5
97.0
100.0
99.2
102.0
104.2
105.5
108.3
110.3
105_F (41_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
75_F
kW Input
24_C
27.4 7.82
.68
28.4 7.90
.74
29.3 7.98
.81
29.1 7.96
.53
29.9 8.03
.56
30.5 8.09
.60
30.9 8.13
.40
31.7 8.21
.41
32.3 8.26
.42
80_F
27_C
.84
.93
.99
.66
.71
.78
.52
.55
.59
85_F
29_C
.99
1.00
1.00
.81
.90
.97
.64
.69
.76
Total
Cooling
Capacity
kBtuh kW
89.6
93.0
96.2
94.8
97.6
99.6
100.9
103.6
105.4
26.3
27.3
28.2
27.8
28.6
29.2
29.6
30.4
30.9
115_F (46_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
8.74
.70
8.82
.76
8.92
.83
8.89
.54
8.97
.57
9.03
.61
9.07
.40
9.14
.41
9.19
.43
80_F
27_C
.87
.95
1.00
.67
.73
.81
.53
.56
.60
Total
Cooling
Capacity
85_F
kBtuh kW
29_C
1.00 85.3 25.0
1.00 88.6 26.0
1.00 92.0 27.0
.83
90.3 26.5
.92
92.7 27.2
.99
94.6 27.7
.65
96.2 28.2
.71
98.4 28.8
.78 100.0 29.3
Sensible To Total
Comp
Ratio (S/T)
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
9.79
.71
.89
1.00
9.89
.79
.98
1.00
9.98
.86
1.00
1.00
9.94
.55
.69
.86
10.02 .58
.76
.95
10.09 .62
.84
1.00
10.13 .40
.53
.67
10.21 .42
.57
.73
10.26 .43
.61
.81
8.5 TON HIGH EFFICIENCY − LGA102H − ONE COMPRESSOR OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
T
Temperature
Total
Ai
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
2720
3400
4080
2720
3400
4080
2720
3400
4080
65_F (18_C)
Total
Cooling
Capacity
L/s kBtuh kW
1285
1605
1925
1285
1605
1925
1285
1605
1925
52.9
55.0
56.7
56.4
58.3
59.7
60.3
62.2
63.5
15.5
16.1
16.6
16.5
17.1
17.5
17.7
18.2
18.6
75_F (24_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
2.40
.67
2.41
.71
2.42
.77
2.42
.52
2.43
.55
2.45
.58
2.45
.39
2.46
.40
2.47
.41
80_F
27_C
.81
.89
.95
.64
.69
.74
.51
.53
.56
Total
Cooling
Capacity
85_F (29_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
85_F
75_F
kBtuh kW Input
29_C
24_C
.95
51.6 15.1 2.71
.67
1.00 53.6 15.7 2.73
.72
1.00 55.3 16.2 2.73
.78
.77
54.9 16.1 2.73
.53
.85
56.7 16.6 2.74
.55
.92
58.0 17.0 2.76
.58
.62
58.7 17.2 2.76
.39
.66
60.4 17.7 2.77
.40
.72
61.6 18.1 2.78
.42
80_F
27_C
.82
.90
.97
.65
.70
.76
.51
.54
.57
Total
Cooling
Capacity
85_F
kBtuh kW
29_C
.96
50.0 14.7
1.00 51.9 15.2
1.00 53.6 15.7
.78
53.2 15.6
.86
54.8 16.1
.94
56.1 16.4
.62
56.8 16.6
.67
58.4 17.1
.73
59.6 17.5
95_F (35_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
3.06
.68
3.07
.74
3.08
.80
3.08
.53
3.10
.56
3.10
.59
3.11
.40
3.12
.41
3.13
.42
80_F
27_C
.84
.92
.98
.66
.71
.77
.51
.55
.58
Total
Cooling
Capacity
85_F
kBtuh kW
29_C
.98
48.3 14.2
1.00 50.1 14.7
1.00 51.8 15.2
.80
51.3 15.0
.88
52.9 15.5
.95
54.0 15.8
.63
54.8 16.1
.69
56.3 16.5
.75
57.4 16.8
Sensible To Total
Comp
Ratio (S/T)
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
3.46
.69
.85
.99
3.47
.75
.94
1.00
3.48
.81
.99
1.00
3.48
.54
.67
.82
3.49
.57
.72
.90
3.50
.60
.79
.97
3.50
.40
.52
.64
3.52
.41
.56
.70
3.52
.42
.59
.77
8.5 TON HIGH EFFICIENCY − LGA102H − ALL COMPRESSORS OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
T
Temperature
Total
Ai
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
2720
3400
4080
2720
3400
4080
2720
3400
4080
85_F (29_C)
Total
Cooling
Capacity
L/s kBtuh kW
1285
1605
1925
1285
1605
1925
1285
1605
1925
100.1
103.9
107.2
106.5
109.8
112.3
113.7
117.0
119.4
29.3
30.5
31.4
31.2
32.2
32.9
33.3
34.3
35.0
95_F (35_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
6.29
.68
6.32
.73
6.34
.79
6.34
.53
6.37
.56
6.39
.59
6.40
.40
6.42
.41
6.44
.42
80_F
27_C
.83
.91
.97
.66
.71
.77
.52
.55
.58
85_F
29_C
.97
1.00
1.00
.79
.87
.94
.63
.69
.74
Total
Cooling
Capacity
kBtuh
96.6
100.2
103.5
102.7
105.9
108.1
109.6
112.7
114.9
Comp
Motor
kW
75_F
kW Input
24_C
28.3 7.11
.69
29.4 7.14
.75
30.3 7.16
.81
30.1 7.16
.54
31.0 7.18
.57
31.7 7.20
.60
32.1 7.20
.40
33.0 7.24
.41
33.7 7.25
.43
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 14
105_F (41_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
80_F
27_C
.85
.93
.99
.67
.72
.78
.52
.56
.59
85_F
29_C
.98
1.00
1.00
.81
.89
.96
.64
.70
.76
Total
Cooling
Capacity
kBtuh kW
92.7
96.4
99.6
98.5
101.5
103.7
105.2
108.0
110.1
27.2
28.3
29.2
28.9
29.7
30.4
30.8
31.7
32.3
115_F (46_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
8.02
.70
8.05
.77
8.07
.83
8.07
.55
8.09
.58
8.11
.61
8.13
.41
8.15
.42
8.17
.43
80_F
27_C
.87
.95
1.00
.68
.74
.80
.53
.57
.60
85_F
29_C
.99
1.00
1.00
.83
.91
.98
.66
.71
.78
Total
Cooling
Capacity
kBtuh kW
88.6
92.1
95.6
94.0
96.8
98.8
100.4
103.1
104.9
26.0
27.0
28.0
27.5
28.4
29.0
29.4
30.2
30.7
Sensible To Total
Comp
Ratio (S/T)
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
9.05
.72
.89
1.00
9.07
.79
.97
1.00
9.11
.85
1.00
1.00
9.10
.56
.69
.85
9.12
.59
.76
.94
9.16
.63
.83
.99
9.16
.41
.54
.67
9.18
.42
.58
.74
9.20
.44
.62
.81
COOLING RATINGS
NOTE − For Temperatures and Capacities not shown in tables, see bulletin − Cooling Unit Rating Table Correction Factor Data in Miscellaneous Engineering Data section.
10 TON STANDARD EFFICIENCY − LGC120S (R−22) − ONE COMPRESSOR OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
T
Temperature
Total
Ai
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
3200
4000
4800
3200
4000
4800
3200
4000
4800
65_F (18_C)
Total
Cooling
Capacity
L/s kBtuh kW
1510
1890
2265
1510
1890
2265
1510
1890
2265
64.5
66.8
68.8
68.2
70.3
71.8
72.4
74.4
75.8
18.9
19.6
20.2
20.0
20.6
21.0
21.2
21.8
22.2
75_F (24_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
3.37
.70
3.41
.75
3.45
.80
3.44
.55
3.48
.58
3.51
.61
3.52
.41
3.56
.42
3.59
.44
80_F
27_C
.83
.91
.97
.67
.73
.78
.53
.56
.60
Total
Cooling
Capacity
85_F (29_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
85_F
75_F
kBtuh kW Input
29_C
24_C
.96
62.9 18.4 3.68
.70
1.00 65.3 19.1 3.72
.76
1.00 67.3 19.7 3.76
.81
.80
66.7 19.5 3.75
.55
.88
68.7 20.1 3.79
.58
.95
70.2 20.6 3.82
.61
.65
70.9 20.8 3.83
.41
.70
72.8 21.3 3.87
.42
.76
74.1 21.7 3.90
.44
80_F
27_C
.84
.92
.98
.68
.73
.79
.53
.57
.60
Total
Cooling
Capacity
85_F
kBtuh kW
29_C
.97
61.1 17.9
1.00 63.4 18.6
1.00 65.5 19.2
.81
64.7 19.0
.89
66.7 19.5
.96
68.1 20.0
.65
68.8 20.2
.71
70.7 20.7
.77
72.0 21.1
95_F (35_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
4.05
.71
4.10
.77
4.13
.83
4.12
.55
4.16
.59
4.19
.62
4.20
.42
4.23
.43
4.26
.44
80_F
27_C
.86
.93
.99
.69
.74
.81
.54
.58
.61
Total
Cooling
Capacity
85_F
kBtuh kW
29_C
.98
58.9 17.3
1.00 61.2 17.9
1.00 63.3 18.6
.82
62.5 18.3
.90
64.4 18.9
.97
65.7 19.3
.66
66.5 19.5
.72
68.3 20.0
.78
69.5 20.4
Sensible To Total
Comp
Ratio (S/T)
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
4.48
.72
.87
.99
4.52
.78
.95
1.00
4.56
.84
1.00
1.00
4.54
.56
.70
.84
4.59
.60
.76
.92
4.62
.63
.82
.98
4.63
.42
.55
.67
4.66
.43
.58
.74
4.69
.45
.62
.80
10 TON STANDARD EFFICIENCY − LGC120S (R−22) − ALL COMPRESSORS OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
T
Temperature
Total
Ai
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
3200
4000
4800
3200
4000
4800
3200
4000
4800
85_F (29_C)
Total
Cooling
Capacity
L/s kBtuh kW
1510
1890
2265
1510
1890
2265
1510
1890
2265
120.2
124.8
128.8
127.4
131.4
134.2
135.5
139.3
141.9
35.2
36.6
37.7
37.3
38.5
39.3
39.7
40.8
41.6
95_F (35_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
8.27
.71
8.36
.77
8.43
.82
8.41
.56
8.49
.59
8.55
.63
8.57
.42
8.65
.43
8.70
.44
80_F
27_C
.85
.93
.98
.69
.75
.80
.54
.58
.62
85_F
29_C
.98
1.00
1.00
.82
.90
.96
.67
.72
.78
Total
Cooling
Capacity
kBtuh
115.9
120.4
124.4
123.0
126.8
129.4
130.9
134.5
136.9
105_F (41_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
75_F
kW Input
24_C
34.0 9.15
.72
35.3 9.23
.78
36.5 9.31
.84
36.0 9.28
.57
37.2 9.37
.60
37.9 9.44
.64
38.4 9.46
.42
39.4 9.52
.43
40.1 9.59
.45
80_F
27_C
.87
.94
.99
.70
.76
.82
.55
.59
.63
85_F
29_C
.99
1.00
1.00
.83
.91
.98
.68
.74
.80
Total
Cooling
Capacity
kBtuh kW
111.5
115.8
120.0
118.2
121.7
124.3
125.9
129.2
131.5
32.7
33.9
35.2
34.6
35.7
36.4
36.9
37.9
38.5
115_F (46_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
10.13 .74
10.24 .80
10.33 .86
10.30 .57
10.38 .61
10.45 .65
10.47 .42
10.55 .44
10.60 .45
80_F
27_C
.89
.96
1.00
.71
.78
.84
.56
.60
.64
85_F
29_C
1.00
1.00
1.00
.85
.93
.99
.69
.75
.82
Total
Cooling
Capacity
kBtuh kW
106.8
111.2
115.5
113.1
116.5
118.9
120.6
123.6
125.8
31.3
32.6
33.8
33.1
34.1
34.8
35.3
36.2
36.9
Sensible To Total
Comp
Ratio (S/T)
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
11.27 .75
.91
1.00
11.38 .82
.98
1.00
11.48 .88
1.00
1.00
11.44 .58
.73
.87
11.53 .62
.79
.95
11.60 .66
.86
1.00
11.62 .43
.56
.70
11.72 .44
.61
.77
11.76 .46
.65
.84
10 TON STANDARD EFFICIENCY − LGC120S (R−410A) − ONE COMPRESSOR OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
T
Temperature
Total
Ai
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
3200
4000
4800
3200
4000
4800
3200
4000
4800
65_F (18_C)
Total
Cooling
Capacity
L/s kBtuh kW
1510
1890
2265
1510
1890
2265
1510
1890
2265
66.6
69.3
71.4
70.8
73.2
74.9
75.4
77.8
79.4
19.5
20.3
20.9
20.7
21.5
22.0
22.1
22.8
23.3
75_F (24_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
3.17
.58
3.19
.62
3.21
.69
3.20
.46
3.22
.48
3.24
.50
3.24
.35
3.26
.35
3.28
.36
80_F
27_C
.73
.83
.92
.56
.60
.66
.44
.47
.49
Total
Cooling
Capacity
85_F (29_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
85_F
75_F
kBtuh kW Input
29_C
24_C
.91
64.2 18.8 3.62
.59
1.00 66.7 19.5 3.64
.64
1.00 68.7 20.1 3.66
.71
.69
68.1 20.0 3.66
.46
.78
70.4 20.6 3.68
.48
.87
72.0 21.1 3.70
.51
.54
72.6 21.3 3.70
.35
.58
74.7 21.9 3.73
.36
.63
76.2 22.3 3.74
.37
80_F
27_C
.75
.85
.95
.56
.61
.68
.45
.47
.50
Total
Cooling
Capacity
85_F
kBtuh kW
29_C
.93
61.5 18.0
1.00 63.9 18.7
1.00 66.0 19.3
.70
65.3 19.1
.81
67.4 19.8
.90
68.9 20.2
.54
69.5 20.4
.59
71.6 21.0
.65
72.9 21.4
95_F (35_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
4.13
.59
4.15
.66
4.17
.73
4.17
.46
4.19
.49
4.21
.52
4.22
.35
4.24
.36
4.26
.37
80_F
27_C
.77
.88
.97
.57
.63
.70
.45
.48
.51
Total
Cooling
Capacity
85_F
kBtuh kW
29_C
.96
58.7 17.2
1.00 61.0 17.9
1.00 63.1 18.5
.73
62.3 18.3
.84
64.2 18.8
.94
65.6 19.2
.55
66.3 19.4
.60
68.2 20.0
.67
69.3 20.3
Sensible To Total
Comp
Ratio (S/T)
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
4.70
.61
.80
.99
4.73
.68
.92
1.00
4.75
.77
.99
1.00
4.74
.47
.58
.75
4.77
.50
.65
.87
4.79
.53
.73
.97
4.80
.35
.46
.57
4.82
.36
.49
.62
4.84
.37
.52
.70
10 TON STANDARD EFFICIENCY − LGC120S (R−410A) − ALL COMPRESSORS OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
T
Temperature
Total
Ai
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
3200
4000
4800
3200
4000
4800
3200
4000
4800
85_F (29_C)
Total
Cooling
Capacity
L/s kBtuh kW
1510
1890
2265
1510
1890
2265
1510
1890
2265
124.2
129.1
133.1
131.8
136.0
139.1
140.4
144.6
147.3
36.4
37.8
39.0
38.6
39.9
40.8
41.1
42.4
43.2
95_F (35_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
8.42
.64
8.47
.69
8.52
.75
8.51
.50
8.56
.53
8.60
.56
8.61
.38
8.67
.39
8.71
.40
80_F
27_C
.79
.89
.97
.62
.67
.73
.49
.52
.55
85_F
29_C
.95
1.00
1.00
.75
.85
.93
.59
.64
.70
Total
Cooling
Capacity
kBtuh
118.4
123.1
127.2
125.6
129.6
132.4
133.8
137.6
140.1
105_F (41_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
75_F
kW Input
24_C
34.7 9.59
.65
36.1 9.64
.71
37.3 9.69
.78
36.8 9.68
.51
38.0 9.73
.54
38.8 9.78
.57
39.2 9.78
.38
40.3 9.84
.39
41.1 9.88
.40
80_F
27_C
.82
.92
.99
.63
.68
.76
.49
.53
.56
85_F
29_C
.98
1.00
1.00
.77
.88
.96
.61
.66
.73
Total
Cooling
Capacity
kBtuh kW
112.2
116.6
121.0
119.0
122.5
125.2
126.8
130.1
132.4
32.9
34.2
35.5
34.9
35.9
36.7
37.2
38.1
38.8
115_F (46_C)
Sensible To Total
Ratio (S/T)
Dry Bulb
Comp
Motor
kW
Input 75_F
24_C
10.89 .67
10.95 .74
11.00 .81
10.99 .52
11.05 .55
11.08 .58
11.10 .38
11.15 .40
11.18 .41
80_F
27_C
.85
.95
1.00
.64
.71
.79
.50
.54
.58
85_F
29_C
1.00
1.00
1.00
.80
.91
.99
.62
.68
.76
Total
Cooling
Capacity
kBtuh kW
105.5
109.8
114.3
111.7
114.9
117.3
119.1
121.9
124.0
30.9
32.2
33.5
32.7
33.7
34.4
34.9
35.7
36.3
Sensible To Total
Comp
Ratio (S/T)
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
12.37 .69
.89
1.00
12.42 .77
.98
1.00
12.47 .85
1.00
1.00
12.45 .53
.66
.84
12.51 .57
.74
.95
12.53 .60
.83
1.00
12.54 .39
.51
.64
12.60 .40
.56
.72
12.63 .42
.60
.80
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 15
COOLING RATINGS
NOTE − For Temperatures and Capacities not shown in tables, see bulletin − Cooling Unit Rating Table Correction Factor Data in Miscellaneous Engineering Data section.
10 TON HIGH EFFICIENCY − LGA120H − ONE COMPRESSOR OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
Temperature
Total
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
3200
4000
4800
3200
4000
4800
3200
4000
4800
65_F (18_C)
Total
Cooling
Capacity
L/s kBtuh kW
1510
1890
2265
1510
1890
2265
1510
1890
2265
65.6
68.2
70.3
69.6
71.9
73.5
74.2
76.4
77.9
19.2
20.0
20.6
20.4
21.1
21.5
21.7
22.4
22.8
75_F (24_C)
Sensible To Total
Ratio (S/T)
85_F (29_C)
Sensible To Total
Ratio (S/T)
95_F (35_C)
Sensible To Total
Ratio (S/T)
Sensible To Total
Total
Total
Total
Ratio (S/T)
Comp
Comp
Comp
Comp
Cooling
Cooling
Cooling
Motor
Capacity Motor
Capacity Motor
Capacity Motor
Dry Bulb
Dry Bulb
Dry Bulb
Dry Bulb
kW
kW
kW
kW
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
kBtuh kW
kBtuh kW
kBtuh kW
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
3.05
.64
.79
.95
63.7 18.7 3.42
.65
.81
.96
61.6 18.1 3.85
.66
.82
.98
59.5 17.4 4.35
.67
.84
.99
3.07
.69
.88
1.00 66.1 19.4 3.44
.71
.90
1.00 64.0 18.8 3.88
.72
.92
1.00 61.8 18.1 4.38
.74
.94
1.00
3.09
.76
.96
1.00 68.2 20.0 3.46
.77
.97
1.00 66.1 19.4 3.90
.79
.99
1.00 63.9 18.7 4.41
.81
1.00
1.00
3.08
.51
.62
.75
67.5 19.8 3.46
.51
.63
.77
65.4 19.2 3.89
.52
.64
.78
63.1 18.5 4.40
.52
.65
.80
3.11
.53
.67
.84
69.7 20.4 3.48
.54
.68
.86
67.4 19.8 3.92
.55
.69
.88
65.0 19.0 4.42
.55
.71
.90
3.12
.56
.73
.92
71.2 20.9 3.50
.57
.75
.94
68.9 20.2 3.94
.58
.76
.96
66.4 19.5 4.44
.59
.78
.98
3.13
.38
.49
.60
72.0 21.1 3.50
.38
.49
.61
69.6 20.4 3.94
.39
.50
.61
67.1 19.7 4.45
.39
.51
.62
3.15
.39
.52
.65
74.1 21.7 3.52
.39
.53
.66
71.6 21.0 3.96
.40
.53
.67
69.0 20.2 4.48
.40
.54
.68
3.16
.40
.55
.70
75.4 22.1 3.54
.41
.56
.72
72.9 21.4 3.98
.41
.57
.74
70.2 20.6 4.49
.41
.58
.76
10 TON HIGH EFFICIENCY − LGA120H − ALL COMPRESSORS OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
Temperature
Total
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
3200
4000
4800
3200
4000
4800
3200
4000
4800
85_F (29_C)
Total
Cooling
Capacity
L/s kBtuh kW
1510
1890
2265
1510
1890
2265
1510
1890
2265
121.1
125.9
129.9
128.6
132.7
135.7
136.9
141.0
143.6
35.5
36.9
38.1
37.7
38.9
39.8
40.1
41.3
42.1
Sensible To Total
Ratio (S/T)
Comp
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
7.75
.67
.82
.97
7.81
.73
.91
1.00
7.85
.79
.97
1.00
7.83
.53
.65
.78
7.90
.56
.70
.87
7.93
.59
.76
.95
7.94
.40
.51
.63
7.99
.41
.54
.68
8.02
.42
.58
.74
95_F (35_C)
Total
Cooling
Capacity
kBtuh kW
117.0
121.6
125.5
124.1
128.0
130.8
132.1
135.9
138.4
34.3
35.6
36.8
36.4
37.5
38.3
38.7
39.8
40.6
Sensible To Total
Ratio (S/T)
Comp
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
8.77
.68
.84
.98
8.82
.74
.93
1.00
8.88
.81
.99
1.00
8.87
.53
.66
.80
8.91
.56
.71
.89
8.95
.60
.78
.97
8.97
.40
.52
.64
9.02
.41
.55
.69
9.06
.42
.59
.76
105_F (41_C)
Total
Cooling
Capacity
kBtuh kW
112.6
116.9
121.1
119.3
123.0
125.6
127.1
130.6
133.0
33.0
34.3
35.5
35.0
36.0
36.8
37.2
38.3
39.0
Sensible To Total
Ratio (S/T)
Comp
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
9.93
.69
.86
.99
9.99
.76
.95
1.00
10.04 .83
1.00
1.00
10.02 .54
.67
.82
10.09 .57
.73
.91
10.14 .61
.80
.98
10.14 .40
.52
.65
10.20 .41
.56
.71
10.24 .43
.60
.78
115_F (46_C)
Total
Cooling
Capacity
kBtuh kW
107.9
112.2
116.4
114.3
117.6
120.2
121.8
124.9
127.0
31.6
32.9
34.1
33.5
34.5
35.2
35.7
36.6
37.2
Sensible To Total
Ratio (S/T)
Comp
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
11.25 .71
.88
1.00
11.31 .78
.97
1.00
11.37 .85
1.00
1.00
11.36 .55
.68
.84
11.41 .58
.75
.94
11.46 .62
.83
.99
11.46 .40
.53
.66
11.53 .42
.57
.73
11.56 .43
.61
.80
12.5 TON STANDARD EFFICIENCY − LGC150S − ONE COMPRESSOR OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
T
Temperature
Total
Ai
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
3800
4400
5000
3800
4400
5000
3800
4400
5000
65_F (18_C)
Total
Cooling
Capacity
L/s kBtuh kW
1795
2075
2360
1795
2075
2360
1795
2075
2360
71.4
73.2
74.7
75.7
77.3
78.6
80.5
82.1
83.3
20.9
21.5
21.9
22.2
22.7
23.0
23.6
24.1
24.4
75_F (24_C)
85_F (29_C)
95_F (35_C)
Sensible To Total
Total
Sensible To Total
Total
Sensible To Total
Total
Sensible To Total
Comp
Comp
Comp
Comp
Ratio (S/T)
Cooling
Ratio (S/T)
Cooling
Ratio (S/T)
Cooling
Ratio (S/T)
Motor
Motor
Motor
Motor
Dry Bulb
Capacity
Dry Bulb
Capacity
Dry Bulb
Capacity
Dry Bulb
kW
kW
kW
kW
Input 75_F 80_F 85_F kBtuh kW Input 75_F 80_F 85_F kBtuh kW Input 75_F 80_F 85_F kBtuh kW Input 75_F 80_F 85_F
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
3.93
.60
.76
.93
69.4 20.3 4.38
.61
.78
.94
67.3 19.7 4.89
.62
.79
.96
65.0 19.0 5.47
.63
.81
.98
3.97
.64
.82
.98
71.1 20.8 4.41
.65
.84
.99
68.9 20.2 4.92
.66
.86
1.00 66.6 19.5 5.50
.67
.88
1.00
4.00
.67
.88
1.00 72.6 21.3 4.45
.69
.89
1.00 70.4 20.6 4.95
.70
.91
1.00 68.1 20.0 5.53
.72
.94
1.00
4.02
.48
.58
.72
73.5 21.5 4.46
.48
.59
.74
71.3 20.9 4.97
.48
.59
.75
68.8 20.2 5.55
.49
.60
.77
4.05
.49
.61
.78
75.1 22.0 4.50
.50
.62
.79
72.7 21.3 5.01
.50
.63
.81
70.2 20.6 5.59
.51
.65
.83
4.08
.51
.65
.84
76.3 22.4 4.53
.51
.66
.85
73.8 21.6 5.04
.52
.67
.88
71.3 20.9 5.61
.52
.69
.90
4.13
.36
.46
.56
78.2 22.9 4.57
.36
.46
.57
75.8 22.2 5.08
.36
.47
.57
73.2 21.5 5.66
.36
.47
.58
4.16
.36
.48
.59
79.7 23.4 4.60
.37
.48
.60
77.2 22.6 5.11
.37
.49
.61
74.5 21.8 5.69
.37
.49
.62
4.19
.37
.49
.62
80.9 23.7 4.63
.37
.50
.63
78.2 22.9 5.14
.38
.51
.65
75.5 22.1 5.72
.38
.51
.67
12.5 TON STANDARD EFFICIENCY − LGC150S − ALL COMPRESSORS OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
T
Temperature
Total
Ai
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
3800
4400
5000
3800
4400
5000
3800
4400
5000
85_F (29_C)
Total
Cooling
Capacity
L/s kBtuh kW
1795
2075
2360
1795
2075
2360
1795
2075
2360
139.5
142.9
145.9
147.8
150.8
153.2
157.2
160.2
162.4
40.9
41.9
42.8
43.3
44.2
44.9
46.1
46.9
47.6
Sensible To Total
Comp
Ratio (S/T)
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
10.03 .67
.82
.96
10.10 .70
.87
1.00
10.16 .74
.92
1.00
10.20 .52
.64
.78
10.27 .54
.67
.83
10.33 .56
.71
.88
10.41 .39
.51
.62
10.49 .40
.53
.65
10.55 .41
.55
.69
95_F (35_C)
Total
Cooling
Capacity
kBtuh
134.7
138.1
141.1
142.7
145.6
148.0
151.9
154.6
156.8
Sensible To Total
Comp
Ratio (S/T)
Motor
Dry Bulb
kW
75_F 80_F 85_F
kW Input
24_C 27_C 29_C
39.5 11.22 .67
.83
.97
40.5 11.29 .71
.89
1.00
41.4 11.36 .75
.94
1.00
41.8 11.39 .53
.65
.79
42.7 11.47 .55
.68
.85
43.4 11.52 .57
.73
.90
44.5 11.62 .40
.51
.63
45.3 11.68 .40
.53
.66
46.0 11.74 .41
.56
.70
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 16
105_F (41_C)
Total
Cooling
Capacity
kBtuh kW
129.7
132.9
135.8
137.3
140.1
142.3
146.1
148.8
150.8
38.0
38.9
39.8
40.2
41.1
41.7
42.8
43.6
44.2
Sensible To Total
Comp
Ratio (S/T)
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
12.59 .69
.85
.99
12.66 .73
.91
1.00
12.73 .77
.96
1.00
12.77 .53
.66
.81
12.84 .55
.70
.87
12.89 .57
.74
.92
12.98 .40
.52
.64
13.06 .41
.54
.68
13.11 .41
.56
.72
115_F (46_C)
Total
Cooling
Capacity
kBtuh kW
124.3
127.5
130.4
131.6
134.2
136.2
140.1
142.4
144.3
36.4
37.4
38.2
38.6
39.3
39.9
41.1
41.7
42.3
Sensible To Total
Comp
Ratio (S/T)
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
24_C 27_C 29_C
14.13 .70
.87
1.00
14.20 .75
.93
1.00
14.27 .79
.98
1.00
14.32 .54
.67
.83
14.39 .56
.72
.89
14.45 .59
.77
.95
14.55 .40
.53
.65
14.62 .41
.55
.69
14.67 .42
.57
.74
HUMIDITROL® REHEAT OPTION RATINGS
NOTE − For Temperatures and Capacities not shown in tables, see bulletin − Cooling Unit Rating Table Correction Factor Data in Miscellaneous Engineering Data section.
7.5 TON HIGH EFFICIENCY − LGA090H − COOLING CAPACITY WITH HUMIDITROL ON − ONE COMPRESSOR OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
Temperature
Total
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
2400
3000
3600
2400
3000
3600
2400
3000
3600
65_F (18_C)
Total
Cooling
Capacity
L/s kBtuh kW
1100
1400
1700
1100
1400
1700
1100
1400
1700
25.6
27.5
29.1
35.8
37.5
38.7
51.2
52.9
54.0
7.5
8.1
8.5
10.5
11.0
11.4
15.0
15.5
15.8
Sensible To Total
Ratio (S/T)
75_F (24_C)
Sensible To Total
Ratio (S/T)
85_F (29_C)
Total
Cooling
Capacity
Sensible To Total
Ratio (S/T)
95_F (35_C)
Sensible To Total
Ratio (S/T)
Comp
Comp
Comp
Comp
Motor
Motor
Motor
Motor
Dry Bulb
Dry Bulb
Dry Bulb
Dry Bulb
kW
kW
kW
kW
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
kBtuh kW
kBtuh kW
kBtuh kW
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
2.09 0.30
0.58
0.89 20.2 5.9 2.30 0.14
0.53
0.91 15.7 4.6
2.53 −0.05 0.45
0.94
11.1 3.3
2.79 −0.39 0.32
0.96
2.10 0.41
0.76
1.00 22.0 6.5 2.31 0.31
0.76
1.00 17.5 5.1
2.54 0.19
0.76
1.00 12.8 3.8
2.79 0.00
0.75
1.00
2.10 0.53
0.91
1.00 23.6 6.9 2.32 0.46
0.91
1.00 19.0 5.6
2.54 0.41
0.95
1.00 14.4 4.2
2.80 0.31
1.00
1.00
2.10 0.26
0.44
0.62 30.2 8.9 2.32 0.17
0.35
0.58 26.6 7.8
2.54 0.09
0.31
0.58 20.9 6.1
2.80 −0.10 0.17
0.53
2.12 0.32
0.50
0.76 31.8 9.3 2.33 0.22
0.45
0.76 28.1 8.2
2.55 0.16
0.41
0.77 22.3 6.5
2.82 0.00
0.33
0.76
2.12 0.36
0.59
0.87 33.0 9.7 2.33 0.28
0.57
0.89 29.2 8.6
2.56 0.23
0.56
0.91 23.3 6.8
2.82 0.09
0.51
0.94
2.12 0.32
0.44
0.55 45.6 13.4 2.33 0.26
0.39
0.52 40.9 12.0 2.56 0.21
0.35
0.49 36.0 10.6 2.83 0.14
0.29
0.46
2.13 0.33
0.46
0.60 47.2 13.8 2.34 0.27
0.43
0.58 42.4 12.4 2.57 0.22
0.40
0.56 37.4 11.0 2.83 0.16
0.35
0.53
2.14 0.34
0.50
0.66 48.3 14.2 2.35 0.29
0.46
0.65 43.4 12.7 2.57 0.25
0.44
0.65 38.4 11.3 2.84 0.18
0.40
0.65
Total
Cooling
Capacity
Total
Cooling
Capacity
7.5 TON HIGH EFFICIENCY − LGA090H − COOLING CAPACITY WITH HUMIDITROL ON − ALL COMPRESSORS OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
Temperature
Total
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
2400
3000
3600
2400
3000
3600
2400
3000
3600
65_F (18_C)
Total
Cooling
Capacity
L/s kBtuh kW
1100
1400
1700
1100
1400
1700
1100
1400
1700
71.2
74.9
78.0
84.4
87.8
90.1
103.0
106.4
108.7
20.9
22.0
22.9
24.7
25.7
26.4
30.2
31.2
31.9
Sensible To Total
Ratio (S/T)
75_F (24_C)
Total
Cooling
Capacity
Comp
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
kBtuh
24_C 27_C 29_C
4.23 0.55
0.74
0.92 64.5
4.26 0.62
0.84
1.00 68.0
4.27 0.69
0.94
1.00 71.0
4.26 0.43
0.57
0.71 77.4
4.29 0.47
0.62
0.81 80.6
4.30 0.51
0.69
0.89 82.9
4.30 0.38
0.49
0.59 95.9
4.32 0.38
0.51
0.65 99.1
4.34 0.39
0.54
0.70 101.3
kW
18.9
19.9
20.8
22.7
23.6
24.3
28.1
29.0
29.7
Sensible To Total
Ratio (S/T)
85_F (29_C)
Sensible To Total
Ratio (S/T)
95_F (35_C)
Sensible To Total
Ratio (S/T)
Comp
Comp
Comp
Motor
Motor
Motor
Dry Bulb
Dry Bulb
Dry Bulb
kW
kW
kW
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
kBtuh kW
kBtuh kW
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
4.73 0.53
0.74
0.94 58.6 17.2 5.27 0.52
0.74
0.95 52.5 15.4 5.91 0.50
0.74
0.97
4.76 0.61
0.85
1.00 62.1 18.2 5.29 0.60
0.87
1.00 55.8 16.4 5.92 0.59
0.89
1.00
4.77 0.70
0.94
1.00 64.9 19.0 5.30 0.69
0.97
1.00 58.8 17.2 5.94 0.70
0.98
1.00
4.77 0.41
0.56
0.72 72.3 21.2 5.30 0.39
0.54
0.73 65.0 19.1 5.93 0.36
0.52
0.72
4.79 0.44
0.61
0.83 75.3 22.1 5.32 0.43
0.61
0.83 67.8 19.9 5.96 0.41
0.61
0.85
4.80 0.48
0.69
0.91 77.4 22.7 5.34 0.47
0.70
0.94 69.8 20.5 5.96 0.45
0.70
0.95
4.80 0.35
0.47
0.59 89.6 26.3 5.34 0.33
0.45
0.58 83.0 24.3 5.97 0.30
0.44
0.58
4.82 0.36
0.50
0.64 92.6 27.1 5.36 0.34
0.50
0.64 85.8 25.2 5.99 0.31
0.48
0.65
4.84 0.37
0.54
0.71 94.6 27.7 5.37 0.35
0.53
0.71 87.8 25.7 6.00 0.33
0.52
0.72
Total
Cooling
Capacity
Total
Cooling
Capacity
8.5 TON HIGH EFFICIENCY − LGA102H − COOLING CAPACITY WITH HUMIDITROL ON − ONE COMPRESSOR OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
Temperature
Total
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
2720
3400
4080
2720
3400
4080
2720
3400
4080
65_F (18_C)
Total
Cooling
Capacity
L/s kBtuh kW
1300
1600
1900
1300
1600
1900
1300
1600
1900
32.4
34.4
36.1
43.8
45.6
46.9
55.6
57.4
58.7
9.5
10.1
10.6
12.8
13.4
13.7
16.3
16.8
17.2
Sensible To Total
Ratio (S/T)
75_F (24_C)
Sensible To Total
Ratio (S/T)
85_F (29_C)
Total
Cooling
Capacity
Sensible To Total
Ratio (S/T)
95_F (35_C)
Sensible To Total
Ratio (S/T)
Comp
Comp
Comp
Comp
Motor
Motor
Motor
Motor
Dry Bulb
Dry Bulb
Dry Bulb
Dry Bulb
kW
kW
kW
kW
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
kBtuh kW
kBtuh kW
kBtuh kW
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
2.41 0.42
0.67
0.92 27.8 8.2 2.59 0.35
0.65
0.93 22.2 6.5
2.81 0.23
0.62
0.95 16.4 4.8
3.09 0.03
0.56
0.97
2.41 0.50
0.81
1.00 29.8 8.7 2.60 0.48
0.82
1.00 24.1 7.1
2.81 0.39
0.81
1.00 18.3 5.4
3.10 0.29
0.81
1.00
2.42 0.60
0.92
1.00 31.4 9.2 2.60 0.59
0.95
1.00 25.7 7.5
2.82 0.56
0.96
1.00 20.0 5.9
3.10 0.48
0.97
1.00
2.41 0.36
0.51
0.68 37.1 10.9 2.60 0.27
0.45
0.66 31.3 9.2
2.82 0.18
0.39
0.64 26.4 7.7
3.11
0.07
0.32
0.61
2.42 0.40
0.58
0.79 38.8 11.4 2.60 0.33
0.53
0.80 32.9 9.6
2.83 0.25
0.48
0.80 28.0 8.2
3.11
0.15
0.45
0.81
2.42 0.44
0.66
0.89 40.1 11.8 2.61 0.38
0.62
0.90 34.1 10.0 2.83 0.31
0.61
0.92 29.1 8.5
3.11
0.24
0.59
0.94
2.42 0.32
0.44
0.56 50.8 14.9 2.60 0.28
0.42
0.55 46.9 13.7 2.83 0.26
0.39
0.54 39.9 11.7 3.12 0.16
0.33
0.49
2.42 0.34
0.48
0.62 52.5 15.4 2.61 0.30
0.46
0.61 48.4 14.2 2.83 0.28
0.43
0.60 41.4 12.1 3.12 0.18
0.37
0.56
2.43 0.35
0.51
0.67 53.6 15.7 2.61 0.32
0.49
0.68 49.6 14.5 2.84 0.29
0.48
0.68 42.4 12.4 3.13 0.20
0.43
0.66
Total
Cooling
Capacity
Total
Cooling
Capacity
8.5 TON HIGH EFFICIENCY − LGA102H − COOLING CAPACITY WITH HUMIDITROL ON − ALL COMPRESSORS OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
Temperature
Total
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
2720
3400
4080
2720
3400
4080
2720
3400
4080
65_F (18_C)
Total
Cooling
Capacity
L/s kBtuh kW
1300
1600
1900
1300
1600
1900
1300
1600
1900
84.7
88.7
92.0
99.5
103.1
105.8
115.0
118.7
121.3
24.8
26.0
27.0
29.2
30.2
31.0
33.7
34.8
35.6
Sensible To Total
Ratio (S/T)
75_F (24_C)
Total
Cooling
Capacity
Comp
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
kBtuh
24_C 27_C 29_C
4.87 0.58
0.75
0.93 78.6
4.88 0.63
0.85
1.00 82.5
4.90 0.71
0.93
1.00 85.7
4.88 0.46
0.58
0.73 91.1
4.90 0.48
0.64
0.82 94.6
4.90 0.52
0.70
0.90 97.1
4.91 0.36
0.48
0.59 108.4
4.91 0.37
0.51
0.64 111.9
4.92 0.39
0.54
0.69 114.2
kW
23.0
24.2
25.1
26.7
27.7
28.5
31.8
32.8
33.5
Sensible To Total
Ratio (S/T)
85_F (29_C)
Sensible To Total
Ratio (S/T)
95_F (35_C)
Sensible To Total
Ratio (S/T)
Comp
Comp
Comp
Motor
Motor
Motor
Dry Bulb
Dry Bulb
Dry Bulb
kW
kW
kW
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
kBtuh kW
kBtuh kW
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
5.34 0.56
0.75
0.93 71.4 20.9 5.66 0.54
0.75
0.96 63.9 18.7 6.60 0.52
0.76
0.97
5.36 0.63
0.86
1.00 75.1 22.0 5.68 0.62
0.88
1.00 67.6 19.8 6.62 0.62
0.88
1.00
5.37 0.71
0.95
1.00 78.3 23.0 5.70 0.70
0.96
1.00 70.8 20.6 6.63 0.71
0.99
1.00
5.36 0.43
0.57
0.72 83.6 24.5 5.69 0.41
0.56
0.72 76.9 22.5 6.64 0.38
0.55
0.73
5.37 0.46
0.63
0.82 86.8 25.4 5.71 0.44
0.62
0.84 80.0 23.5 6.65 0.42
0.62
0.86
5.39 0.49
0.69
0.91 89.2 26.1 5.72 0.48
0.70
0.93 82.3 24.1 6.65 0.47
0.71
0.95
5.38 0.34
0.46
0.58 102.7 30.1 5.72 0.33
0.46
0.58 93.7 27.5 6.66 0.30
0.43
0.57
5.39 0.36
0.50
0.64 105.8 31.0 5.72 0.34
0.50
0.65 96.8 28.4 6.68 0.32
0.48
0.64
5.39 0.37
0.53
0.70 108.1 31.7 5.73 0.36
0.53
0.71 98.8 29.0 6.69 0.33
0.52
0.71
Total
Cooling
Capacity
Total
Cooling
Capacity
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 17
HUMIDITROL REHEAT OPTION RATINGS
NOTE − For Temperatures and Capacities not shown in tables, see bulletin − Cooling Unit Rating Table Correction Factor Data in Miscellaneous Engineering Data section.
10 TON HIGH EFFICIENCY − LGA120H − COOLING CAPACITY WITH HUMIDITROL ON − ONE COMPRESSOR OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
Temperature
63F
(17C)
67F
(19C)
71F
(22C)
Total
Air
Volume
cfm
L/s
3200
4000
4800
3200
4000
4800
3200
4000
4800
1500
1900
2300
1500
1900
2300
1500
1900
2300
65_F (18_C)
Total
Cooling
Capacity
kBtuh kW
26.6
29.2
31.3
48.6
50.9
52.5
67.2
69.4
70.9
7.8
8.6
9.2
14.2
14.9
15.4
19.7
20.3
20.8
Sensible To Total
Ratio (S/T)
75_F (24_C)
Sensible To Total
Ratio (S/T)
85_F (29_C)
Total
Cooling
Capacity
Sensible To Total
Ratio (S/T)
95_F (35_C)
Sensible To Total
Ratio (S/T)
Comp
Comp
Comp
Comp
Motor
Motor
Motor
Motor
Dry Bulb
Dry Bulb
Dry Bulb
Dry Bulb
kW
kW
kW
kW
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
kBtuh kW
kBtuh kW
kBtuh kW
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
2.93 0.11
0.48
0.88 22.7 6.7
3.27 0.02
0.47
0.89 17.6 5.2
3.59 −0.19 0.37
0.93 12.5 3.7
3.99 −0.57 0.24
0.95
2.95 0.28
0.72
1.00 25.1 7.4
3.29 0.24
0.74
1.00 20.0 5.9
3.62 0.10
0.74
1.00 14.8 4.3
4.01 −0.09 0.75
1.00
2.97 0.46
0.91
1.00 27.2 8.0
3.31 0.42
0.92
1.00 22.1 6.5
3.64 0.37
0.97
1.00 16.9 5.0
4.04 0.28
1.00
1.00
2.96 0.30
0.46
0.64 36.5 10.7 3.31 0.09
0.32
0.57 32.4 9.5
3.63 0.03
0.27
0.56 26.1 7.7
4.03 −0.16 0.15
0.52
2.99 0.34
0.53
0.77 38.7 11.4 3.33 0.17
0.42
0.75 34.4 10.1 3.66 0.12
0.39
0.76 28.0 8.2
4.05 −0.04 0.33
0.77
3.00 0.38
0.62
0.89 40.2 11.8 3.35 0.24
0.56
0.89 35.9 10.5 3.68 0.19
0.54
0.92 29.4 8.6
4.07 0.07
0.50
0.95
3.01 0.32
0.44
0.56 58.0 17.0 3.35 0.23
0.37
0.52 52.6 15.4 3.68 0.19
0.34
0.48 47.1 13.8 4.08 0.13
0.30
0.46
3.03 0.33
0.47
0.61 60.1 17.6 3.37 0.25
0.42
0.58 54.6 16.0 3.70 0.21
0.38
0.57 49.0 14.4 4.11 0.16
0.35
0.55
3.04 0.34
0.51
0.67 61.4 18.0 3.39 0.28
0.46
0.66 55.9 16.4 3.72 0.23
0.44
0.66 50.2 14.7 4.11 0.17
0.41
0.66
Total
Cooling
Capacity
Total
Cooling
Capacity
10 TON HIGH EFFICIENCY − LGA120H − COOLING CAPACITY WITH HUMIDITROL ON − ALL COMPRESSORS OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
Temperature
Total
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
3200
4000
4800
3200
4000
4800
3200
4000
4800
65_F (18_C)
Total
Cooling
Capacity
L/s kBtuh kW
1500
1900
2300
1500
1900
2300
1500
1900
2300
89.8
94.9
99.1
115.9
120.4
123.8
138.8
143.4
146.5
26.3
27.8
29.0
34.0
35.3
36.3
40.7
42.0
42.9
Sensible To Total
Ratio (S/T)
75_F (24_C)
Total
Cooling
Capacity
Comp
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
kBtuh
24_C 27_C 29_C
6.01 0.51
0.71
0.91 84.2
6.06 0.59
0.83
1.00 89.1
6.09 0.67
0.93
1.00 93.2
6.09 0.43
0.56
0.72 101.9
6.13 0.46
0.62
0.81 106.3
6.17 0.50
0.70
0.89 109.4
6.18 0.36
0.47
0.59 127.6
6.23 0.37
0.51
0.64 131.8
6.26 0.38
0.54
0.70 134.7
kW
24.7
26.1
27.3
29.9
31.2
32.1
37.4
38.6
39.5
Sensible To Total
Ratio (S/T)
85_F (29_C)
Sensible To Total
Ratio (S/T)
95_F (35_C)
Sensible To Total
Ratio (S/T)
Comp
Comp
Comp
Motor
Motor
Motor
Dry Bulb
Dry Bulb
Dry Bulb
kW
kW
kW
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
kBtuh kW
kBtuh kW
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
6.73 0.51
0.72
0.93 77.1 22.6 7.50 0.48
0.72
0.95 70.0 20.5 8.41 0.47
0.73
0.97
6.79 0.59
0.84
1.00 81.9 24.0 7.55 0.58
0.86
1.00 74.6 21.9 8.45 0.58
0.89
1.00
6.83 0.68
0.94
1.00 85.9 25.2 7.59 0.68
0.95
1.00 78.5 23.0 8.51 0.70
0.98
1.00
6.81 0.37
0.53
0.70 95.6 28.0 7.57 0.37
0.53
0.70 87.1 25.5 8.50 0.33
0.52
0.72
6.86 0.42
0.60
0.81 99.7 29.2 7.64 0.41
0.60
0.83 91.0 26.7 8.54 0.38
0.59
0.85
6.90 0.46
0.68
0.91 102.7 30.1 7.70 0.46
0.68
0.93 93.8 27.5 8.58 0.44
0.69
0.96
6.91 0.33
0.46
0.58 119.9 35.1 7.68 0.31
0.44
0.58 112.1 32.9 8.60 0.29
0.43
0.58
6.96 0.35
0.49
0.63 124.0 36.3 7.72 0.33
0.48
0.64 115.9 34.0 8.65 0.31
0.47
0.64
7.00 0.36
0.53
0.70 126.6 37.1 7.76 0.34
0.52
0.71 118.4 34.7 8.68 0.32
0.52
0.72
Total
Cooling
Capacity
Total
Cooling
Capacity
12.5 TON STANDARD EFFICIENCY − LGC150S − COOLING CAPACITY WITH HUMIDITROL ON − ONE COMPRESSOR OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
Temperature
Total
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
3800
4400
5000
3800
4400
5000
3800
4400
5000
65_F (18_C)
Total
Cooling
Capacity
L/s kBtuh kW
1800
2100
2400
1800
2100
2400
1800
2100
2400
25.4
27.2
28.7
43.7
45.3
46.6
61.5
63.1
64.3
7.4
8.0
8.4
12.8
13.3
13.6
18.0
18.5
18.8
Sensible To Total
Ratio (S/T)
75_F (24_C)
Sensible To Total
Ratio (S/T)
85_F (29_C)
Total
Cooling
Capacity
Sensible To Total
Ratio (S/T)
95_F (35_C)
Sensible To Total
Ratio (S/T)
Comp
Comp
Comp
Comp
Motor
Motor
Motor
Motor
Dry Bulb
Dry Bulb
Dry Bulb
Dry Bulb
kW
kW
kW
kW
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
kBtuh kW
kBtuh kW
kBtuh kW
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
3.79
−.12
.33
.80
23.4 6.9 4.13
−.16
.35
.82
21.3 6.2
4.37
−.20
.34
.87
19.0 5.6
4.88
−.27
.35
.93
3.83
.03
.52
.95
25.1 7.3 4.16
.01
.55
.97
22.9 6.7
4.40
−.02
.58
1.00 20.6 6.0
4.91
−.07
.61
1.00
3.86
.14
.69
1.00 26.6 7.8 4.19
.15
.70
1.00 24.4 7.1
4.43
.13
.74
1.00 22.1 6.5
4.94
.14
.82
1.00
3.88
.10
.27
.51
41.5 12.2 4.20
.08
.27
.54
39.3 11.5 4.44
.06
.26
.55
36.8 10.8 4.95
.05
.25
.57
3.91
.13
.33
.62
43.1 12.6 4.24
.13
.34
.63
40.7 11.9 4.50
.11
.34
.66
38.2 11.2 4.99
.10
.36
.69
3.94
.17
.41
.73
44.3 13.0 4.27
.16
.41
.74
41.8 12.2 4.51
.15
.42
.79
39.3 11.5 5.01
.13
.44
.82
3.99
.16
.29
.42
59.2 17.3 4.31
.15
.29
.43
56.8 16.6 4.54
.15
.29
.43
54.2 15.9 5.02
.14
.28
.43
4.02
.17
.32
.47
60.7 17.8 4.33
.17
.32
.47
58.2 17.0 4.57
.16
.32
.48
55.5 16.3 5.08
.15
.32
.49
4.05
.18
.34
.51
61.9 18.1 4.36
.18
.35
.52
59.2 17.3 4.60
.18
.35
.54
56.5 16.5 5.12
.17
.35
.56
Total
Cooling
Capacity
Total
Cooling
Capacity
12.5 TON STANDARD EFFICIENCY − LGC150S − COOLING CAPACITY WITH HUMIDITROL ON − ALL COMPRESSORS OPERATING
Outdoor Air Temperature Entering Outdoor Coil
Entering
Wet Bulb
Temperature
Total
Air
Volume
cfm
63F
(17C)
67F
(19C)
71F
(22C)
3800
4400
5000
3800
4400
5000
3800
4400
5000
65_F (18_C)
Total
Cooling
Capacity
L/s kBtuh kW
1800
2100
2400
1800
2100
2400
1800
2100
2400
102.0
105.7
108.9
125.0
128.4
131.1
147.9
151.3
153.9
29.9
31.1
31.9
36.6
37.6
38.4
43.3
44.3
45.1
Sensible To Total
Ratio (S/T)
75_F (24_C)
Total
Cooling
Capacity
Comp
Motor
Dry Bulb
kW
Input 75_F 80_F 85_F
kBtuh
24_C 27_C 29_C
7.90
.49
.70
.90
97.8
7.98
.54
.77
.97 101.4
8.05
.60
.84
1.00 104.5
8.09
.40
.54
.70 120.5
8.15
.41
.58
.75 123.8
8.21
.44
.61
.81 126.4
8.31
.31
.44
.55 143.2
8.38
.32
.46
.58 146.4
8.43
.33
.47
.62 148.9
kW
28.6
29.7
30.6
35.3
36.2
37.0
41.9
42.9
43.6
85_F (29_C)
Total
Cooling
Capacity
Sensible To Total
Ratio (S/T)
95_F (35_C)
Sensible To Total
Ratio (S/T)
Comp
Comp
Comp
Motor
Motor
Motor
Dry Bulb
Dry Bulb
Dry Bulb
kW
kW
kW
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
Input 75_F 80_F 85_F
kBtuh kW
kBtuh kW
24_C 27_C 29_C
24_C 27_C 29_C
24_C 27_C 29_C
8.72
.50
.72
.91
93.5 27.4 9.51
.51
.73
.94
88.7 26.0 10.63 .51
.74
.95
8.79
.55
.78
.99
96.9 28.4 9.58
.56
.81
1.00 92.1 27.0 10.70 .58
.84
1.00
8.86
.61
.86
1.00 99.9 29.3 9.64
.62
.88
1.00 95.1 27.8 10.77 .64
.91
1.00
8.88
.39
.53
.71
115.8 33.9 9.67
.39
.54
.72
110.7 32.4 10.79 .39
.55
.74
8.60
.42
.57
.77
118.8 34.8 9.74
.42
.59
.78
113.6 33.3 10.87 .42
.60
.81
9.02
.44
.62
.84 121.2 35.5 9.80
.44
.65
.86
116.0 34.0 10.92 .45
.66
.87
9.10
.31
.43
.56 138.2 40.5 9.87
.31
.44
.57 132.9 38.9 11.01
.31
.44
.58
9.17
.32
.46
.59 141.2 41.3 9.95
.32
.47
.60 135.6 39.7 11.07
.32
.46
.61
9.22
.32
.48
.64 143.4 42.0 10.01 .33
.49
.65 137.8 40.3 11.13
.33
.50
.67
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 18
Sensible To Total
Ratio (S/T)
Total
Cooling
Capacity
BLOWER DATA
BELT DRIVE BLOWER − BASE UNIT
BLOWER TABLE INCLUDES RESISTANCE FOR BASE UNIT ONLY (NO HEAT SECTION) WITH DRY INDOOR COIL AND
AIR FILTERS IN PLACE. FOR ALL UNITS ADD:
1 − Wet indoor coil air resistance of selected unit.
2 − Any factory installed options air resistance (heat section, economizer, etc.)
3 − Any field installed accessories air resistance (duct resistance, diffuser, etc.)
Then determine from blower table blower motor output and drive required.
See below for blower motors and drives. See page 18 for wet coil and option/accessory air resistance data.
BOLD INDICATES FIELD FURNISHED DRIVE.
Air
Volume
cfm
f
(L/s)
Total Static Pressure − in. w.g. (Pa)
.20 (50)
.40 (100)
.60 (150)
.80 (200) 1.00 (250) 1.20 (300) 1.40 (350) 1.60 (400) 1.80 (450) 2.00 (495) 2.20 (545) 2.40 (595) 2.60 (645)
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
(kW)
(kW)
(kW)
(kW)
(kW)
(kW)
(kW)
(kW)
(kW)
(kW)
(kW)
(kW)
(kW)
2250
(1060)
455
0.30 555 0.45 640 0.60 720 0.80 790 1.00 855 1.20 915 1.40 975 1.60 1030 1.85 1080 2.05 1130 2.30 1175 2.55 1220 2.80
(0.22)
(0.34)
(0.45)
(0.60)
(0.75)
(0.90)
(1.04)
(1.19)
(1.38)
(1.53)
(1.72)
(1.90)
(2.09)
2500
(1180)
475
0.40 575 0.55 660 0.70 735 0.90 805 1.10 870 1.30 930 1.55 985 1.75 1040 2.00 1090 2.25 1140 2.50 1185 2.75 1230 3.00
(0.30)
(0.41)
(0.52)
(0.67)
(0.82)
(0.97)
(1.16)
(1.31)
(1.49)
(1.68)
(1.87)
(2.05)
(2.24)
2750
(1300)
495
0.45 595 0.65 675 0.85 750 1.05 820 1.25 885 1.45 940 1.70 995 1.90 1050 2.20 1100 2.45 1145 2.65 1195 2.95 1240 3.25
(0.34)
(0.48)
(0.63)
(0.78)
(0.93)
(1.08)
(1.27)
(1.42)
(1.64)
(1.83)
(1.98)
(2.20)
(2.42)
3000
(1415)
525
0.55 615 0.75 695 0.95 770 1.20 835 1.40 895 1.60 955 1.85 1010 2.10 1060 2.35 1110 2.65 1160 2.90 1205 3.20 1250 3.45
(0.41)
(0.56)
(0.71)
(0.90)
(1.04)
(1.19)
(1.38)
(1.57)
(1.75)
(1.98)
(2.16)
(2.39)
(2.57)
3250
(1535)
550
0.65 640 0.90 715 1.10 790 1.35 855 1.60 915 1.80 970 2.05 1025 2.35 1075 2.60 1125 2.85 1170 3.15 1215 3.40 1260 3.70
(0.48)
(0.67)
(0.82)
(1.01)
(1.19)
(1.34)
(1.53)
(1.75)
(1.94)
(2.13)
(2.35)
(2.54)
(2.76)
3500
(1650)
580
0.80 665 1.05 740 1.25 810 1.50 870 1.75 930 2.00 985 2.25 1040 2.55 1090 2.85 1135 3.10 1185 3.40 1230 3.70 1270 4.00
(0.60)
(0.78)
(0.93)
(1.12)
(1.31)
(1.49)
(1.68)
(1.90)
(2.13)
(2.31)
(2.54)
(2.76)
(2.98)
3750
(1770)
605
0.95 690 1.20 760 1.45 830 1.70 890 1.95 950 2.25 1005 2.50 1055 2.80 1105 3.10 1150 3.35 1195 3.65 1240 3.95 1285 4.30
(0.71)
(0.90)
(1.08)
(1.27)
(1.45)
(1.68)
(1.87)
(2.09)
(2.31)
(2.50)
(2.72)
(2.95)
(3.21)
4000
(1890)
635
1.10 715 1.40 785 1.65 850 1.90 910 2.20 965 2.45 1020 2.75 1070 3.05 1120 3.35 1165 3.65 1210 3.95 1255 4.30 1295 4.60
(0.82)
(1.04)
(1.23)
(1.42)
(1.64)
(1.83)
(2.05)
(2.28)
(2.50)
(2.72)
(2.95)
(3.21)
(3.43)
4250
(2005)
665
1.30 740 1.60 810 1.85 870 2.15 930 2.45 985 2.75 1040 3.05 1090 3.35 1135 3.65 1185 4.00 1225 4.30 1270 4.65 1310 4.95
(0.97)
(1.19)
(1.38)
(1.60)
(1.83)
(2.05)
(2.28)
(2.50)
(2.72)
(2.98)
(3.21)
(3.47)
(3.69)
4500
(2125)
695
1.50 770 1.80 835 2.10 895 2.40 955 2.70 1005 3.00 1060 3.35 1105 3.65 1155 4.00 1200 4.30 1245 4.65 1285 5.00 1325 5.30
(1.12)
(1.34)
(1.57)
(1.79)
(2.01)
(2.24)
(2.50)
(2.72)
(2.98)
(3.21)
(3.47)
(3.73)
(3.95)
4750
(2240)
725
1.75 795 2.05 860 2.40 920 2.70 975 3.00 1030 3.35 1080 3.65 1125 3.95 1175 4.35 1215 4.65 1260 5.00 1300 5.35 1340 5.70
(1.31)
(1.53)
(1.79)
(2.01)
(2.24)
(2.50)
(2.72)
(2.95)
(3.25)
(3.47)
(3.73)
(3.99)
(4.25)
5000
(2360)
760
2.05 825 2.35 885 2.65 945 3.00 1000 3.35 1050 3.65 1100 4.00 1145 4.35 1190 4.70 1235 5.05 1280 5.45
(1.53)
(1.75)
(1.98)
(2.24)
(2.50)
(2.72)
(2.98)
(3.25)
(3.51)
(3.77)
(4.07)
−−−
−−−
5250
(2475)
790
2.30 855 2.65 910 2.95 970 3.35 1020 3.65 1070 4.00 1120 4.35 1165 4.70 1210 5.10 1255 5.45
(1.72)
(1.98)
(2.20)
(2.50)
(2.72)
(2.98)
(3.25)
(3.51)
(3.80)
(4.07)
−−−
−−−
−−−
5500
(2595)
820
2.60 880 2.95 940 3.30 995 3.70 1045 4.05 1095 4.40 1145 4.80 1190 5.15 1230 5.50
(1.94)
(2.20)
(2.46)
(2.76)
(3.02)
(3.28)
(3.58)
(3.84)
(4.10)
−−−
−−−
−−−
−−−
5750
(2715)
850
2.95 910 3.30 965 3.70 1020 4.05 1070 4.45 1120 4.80 1165 5.20 1210 5.60
(2.20)
(2.46)
(2.76)
(3.02)
(3.32)
(3.58)
(3.88)
(4.18)
−−−
−−−
−−−
−−−
−−−
6000
(2830)
885
3.35 940 3.70 995 4.10 1045 4.45 1095 4.85 1145 5.25 1190 5.65
(2.50)
(2.76)
(3.06)
(3.32)
(3.62)
(3.92)
(4.21)
−−−
−−−
−−−
−−−
−−−
−−−
FACTORY INSTALLED BELT DRIVE KIT SPECIFICATIONS
Model
No.
090
102
120
150
Motor Efficiency
Standard or High
Motor Outputs
Nominal Maximum Nominal Maximum Drive 1
hp
hp
kW
kW
2
2.3
1.5
1.7
680 − 925
RPM Range
Drive 2
Drive 3
Drive 4
Drive 5
Drive 6
−−−
−−−
895 − 1120
−−−
−−−
Standard
3
3.45
2.2
2.6
680 − 925
−−−
895 − 1120
−−−
1110 − 1395
−−−
High
3
3.45
2.2
2.6
−−−
680 − 925
−−−
895 − 1120
−−−
1110 − 1395
Standard or High
5
5.75
3.7
4.3
−−−
−−−
−−−
895 − 1120
−−−
1110 − 1395
NOTE − Using total air volume and system static pressure requirements determine from blower performance tables rpm and motor output required. Maximum usable output
of motors furnished by Lennox are shown. In Canada, nominal motor output is also maximum usable motor output. If motors of comparable output are used, be sure to keep
within the service factor limitations outlined on the motor nameplate.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 19
BLOWER DATA
FACTORY INSTALLED OPTIONS/FIELD INSTALLED ACCESSORY AIR RESISTANCE
Wet Indoor Coil
Air Volume
120S,
120H,150S
090, 102
Humiditrol
Condenser Reheat
Coil − 090H, 102H
120H, 150S
in.
Pa
w.g.
cfm
L/s
in.
w.g.
Pa
in.
w.g.
Pa
2250
1060
.06
15
.10
25
.02
2500
1180
.08
20
.12
30
.03
2750
1325
.09
22
.14
35
3000
1420
.10
25
.16
3250
1535
.11
27
3500
1650
.13
3750
1770
4000
4250
Gas Heat Exchanger
Standard
Heat
Medium
Heat
Economizer
High Heat
090,
102, 120, 150
in.
w.g.
Pa
in.
w.g.
Pa
in.
w.g.
Pa
in.
w.g.
5
.05
12
.07
17
.09
22
7
.05
12
.09
22
.11
27
.03
7
.06
15
.10
25
.13
40
.03
7
.07
17
.12
30
.19
47
.04
10
.08
20
.15
32
.21
52
.04
10
.09
22
.14
35
.23
57
.05
12
.10
1890
.16
40
.26
65
.05
12
2005
.17
42
.28
70
.06
15
4500
2125
.18
45
.31
77
.07
17
4750
2240
.20
50
.33
82
.07
5000
2360
.22
55
.36
90
5250
2475
.24
60
.39
5500
2595
.26
65
5750
2715
.28
6000
2830
.30
MERV 11
Filter
Pa
in.
w.g.
Pa
.035
9
.01
2
.04
10
.01
2
32
.045
11
.02
5
.16
40
.05
12
.02
5
37
.19
47
.06
15
.02
5
.17
42
.22
55
.07
17
.03
7
25
.20
50
.26
65
.075
19
.03
7
.11
27
.22
55
.30
75
.08
20
.04
10
.12
30
.25
62
.34
85
.09
22
.04
10
.13
32
.28
70
.38
94
.10
25
.04
10
17
.14
35
.31
77
.42
104
.11
27
.05
12
.08
20
.16
40
.35
87
.47
117
.12
30
.06
15
97
.08
20
.18
45
.38
94
.52
129
.13
32
.06
15
.42
104
.09
22
.20
50
.42
104
.57
142
.14
35
.07
17
70
.45
112
.10
25
.22
55
.46
114
.62
154
.15
37
.07
17
75
.48
119
.10
25
.24
60
.50
124
.68
169
.16
40
.08
20
AIR RESISTANCE − CEILING DIFFUSERS
Unit
Size
090
Models
102 & 120
Models
150 Models
Air Volume
RTD11 Step-Down Diffuser
2 Ends Open
1 Side, 2 Ends Open
All Ends & Sides Open
FD11 Flush
Diffuser
cfm
L/s
in. w.g.
Pa
in. w.g.
Pa
in. w.g.
Pa
in. w.g.
Pa
2400
1135
0.21
52
0.18
45
0.15
37
0.14
35
2600
1225
0.24
60
0.21
52
0.18
45
0.17
42
2800
1320
0.27
67
0.24
60
0.21
52
0.20
50
3000
1415
0.32
80
0.29
72
0.25
62
0.25
62
3200
1510
0.41
102
0.37
92
0.32
80
0.31
77
3400
1605
0.50
124
0.45
112
0.39
97
0.37
92
3600
1700
0.61
152
0.54
134
0.48
119
0.44
109
3800
1795
0.73
182
0.63
157
0.57
142
0.51
127
3600
1700
0.36
90
0.28
70
0.23
57
0.15
37
3800
1795
0.40
99
0.32
80
0.26
65
0.18
45
4000
1890
0.44
109
0.36
90
0.29
72
0.21
52
4200
1980
0.49
122
0.40
99
0.33
82
0.24
60
4400
2075
0.54
134
0.44
109
0.37
92
0.27
67
4600
2170
0.60
149
0.49
122
0.42
104
0.31
77
4800
2265
0.65
162
0.53
132
0.46
114
0.35
87
5000
2360
0.69
172
0.58
144
0.50
124
0.39
97
5200
2455
0.75
186
0.62
154
0.54
134
0.43
107
4200
1980
0.22
55
0.19
47
0.16
40
0.10
25
4400
2075
0.28
70
0.24
60
0.20
50
0.12
30
4600
2170
0.34
85
0.29
72
0.24
60
0.15
37
4800
2265
0.40
99
0.34
85
0.29
72
0.19
47
5000
2360
0.46
114
0.39
97
0.34
85
0.23
57
5200
2455
0.52
129
0.44
109
0.39
97
0.27
67
5400
2550
0.58
144
0.49
122
0.43
107
0.31
77
5600
2645
0.64
159
0.54
134
0.47
117
0.35
87
5800
2735
0.70
174
0.59
147
0.51
127
0.39
97
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 20
BLOWER DATA
CEILING DIFFUSER AIR THROW DATA
090
102
120
150
1
Throw Range
RTD11 Step-Down
FD11 Flush
ft.
m
ft.
m
Air Volume
Model No.
POWER EXHAUST FANS PERFORMANCE
1Effective
Return Air System
Static Pressure
in. w.g.
Pa
Air Volume Exhausted
cfm
L/s
0
4200
1980
0.05
12
3970
1875
0.10
25
3750
1770
7−9
0.15
37
3520
1660
7−9
0.20
50
3300
1560
0.25
62
3080
1455
8 − 11
0.30
75
2860
1350
28 − 37
9 − 11
0.35
87
2640
1245
28 − 37
9 − 11
cfm
L/s
2600
1225
24 − 29
7−9
19 − 24
6−7
0
2800
1320
25 − 30
8−9
20 − 28
6−9
3000
1415
27 − 33
8 − 10
21 − 29
6−9
3200
1510
28 − 35
9 − 11
22 − 29
7−9
3400
1605
30 − 37
9 − 11
22 − 30
3600
1700
25 − 33
8 − 10
22 − 29
3800
1795
27 − 35
8 − 11
22 − 30
7−9
4000
1885
29− 37
9 − 11
24 − 33
7 − 10
4200
1980
32 − 40
10 − 12
26 − 35
4400
2075
34 − 42
10 − 13
5600
2645
39 − 49
12 − 15
5800
2740
42 − 51
13 − 16
29 − 38
9 − 12
6000
2830
44 − 54
13 − 17
40 − 50
12 − 15
6200
2925
45 − 55
14 − 17
42 − 51
13 − 16
6400
3020
46 − 55
14 − 17
43 − 52
13 − 16
6600
3115
47 − 56
14 − 17
45 − 56
14 − 17
Throw is the horizontal or vertical distance an air stream travels on leaving the
outletor diffuser before the maximum velocity is reduced to 50 ft. (15 m) per minute.
Four sides open.
HIGH ALTITUDE DERATE
Units may be installed at altitudes up to 2000 feet (610 m) above sea level without any modification.
At altitudes above 2000 feet (610 m), units must be derated to match gas manifold pressures shown
in table below. NOTE − This is the only permissible derate for these units.
Gas Manifold Pressure
Altitude
Natural Gas
LPG/Propane
ft.
m
in. w.g.
kPa
in. w.g.
kPa
2001 − 3000
610 − 915
3.6
0.90
10.2
2.54
3001 − 4000
915 − 1220
3.5
0.87
9.9
2.46
4001 − 5000
1220 − 1525
3.4
0.85
9.6
2.39
5001 − 6000
1525 − 1830
3.3
0.82
9.4
2.34
6001 − 7000
1830 − 2135
3.2
0.80
9.1
2.26
7001 − 8000
2135 − 2440
3.1
0.77
8.8
2.19
8001 − 10,000
2440 − 3048
Contact Technical Support
OUTDOOR SOUND DATA
Octave Band Sound Power Levels dB, re 10−12 Watts
Unit
U
it
Model No.
1
1Sound
125
250
500
1000
2000
4000
8000
R ti
Rating
Number
(dB)
090, 102, and 120
92
88
87
83
78
72
67
88
150
93
89
88
84
78
73
67
88
Center Frequency − HZ
Tested according to ARI Standard 270-95 test conditions and ANSI Standard S1.32-1981.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 21
electrical data
7.5 TON STANDARD / HIGH EFFICIENCY
ModelNo.
Linevoltagedata−60Hz−3phase
208/230V
Rated load amps − each (total)
12.8 (25.6)
Compressors
p
(2)
Locked rotor amps − each (total)
91 (182)
Number of motors
2
Condenser
F M t
FanMotor
Full load amps − each (total)
2.4 (4.8)
Locked rotor amps − each (total)
4.7 (9.4)
Motor Output − hp 2
3
5
Evaporator
p
Bl
Blower
kW 1.5 2.2 3.7
Motor
Fullloadamps 7.5 10.6 16.7
Lockedrotoramps 46.9 66 105
1 Maximum Overcurrent
With Exhaust Fan 50 50 70
P t ti
Protection
((amps))
Less Exhaust Fan 50 50 60
2 Minimum Circuit
With Exhaust Fan 44 47 53
A
Ampacity
it
Less Exhaust Fan 42 45 51
(Number)Horsepower (W) (1) 1/3 (249)
Optional
p
Power
E h
Exhaust
t Fan
F
Fullloadamps
2.4
Lockedrotoramps
4.7
Service Outlet (2) 115 volt GFCI (amp rating)
15
LGC090S
460V
6.4 (12.8)
46 (92)
2
1.3 (2.6)
2.4 (4.8)
2
3
5
1.5 2.2 3.7
3.4 4.8 7.6
20.4 26.8 45.6
25 25 30
25 25 30
22 24 26
21 22 25
(1) 1/3 (249)
1.3
2.4
15
575V
5.1 (10.2)
37 (74)
2
1.0 (2.0)
1.9 (3.8)
2
3
5
1.5 2.2 3.7
2.7 3.9 6.1
16.2 23.4 36.6
20 20 25
20 20 25
18 19 21
17 18 20
(1) 1/3 (249)
1.0
1.9
15
208/230V
12.4 (24.9)
88 (176)
2
2.4 (4.8)
4.7 (9.4)
2
3
5
1.5 2.2 3.7
7.5 10.6 16.7
46.9 66 105
50 50 60
50 50 60
43 46 52
41 44 50
(1) 1/3 (249)
2.4
4.7
15
LGA090H
460V
6.4 (12.8)
44 (88)
2
1.3 (2.6)
2.4 (4.8)
2
3
5
1.5 2.2 3.7
3.4 4.8 7.6
20.4 26.8 45.6
25 25 30
25 25 30
22 24 26
21 22 25
(1) 1/3 (249)
1.3
2.4
15
575V
4.8 (9.6)
34 (68)
2
1.0 (2.0)
1.9 (3.8)
2
3
5
1.5 2.2 3.7
2.7 3.9 6.1
16.2 23.4 36.6
20 20 25
20 20 25
17 18 20
16 17 19
(1) 1/3 (249)
1.0
1.9
15
LGC102S
460V
7.1 (14.2)
50 (100)
1.3 (2.6)
2.4 (4.8)
2
3
5
1.5 2.2 3.7
3.4 4.8 7.6
20.4 26.8 45.6
30 30 35
25 30 30
24 25 28
22 27 27
(1) 1/3 (249)
1.3
2.4
15
575V
5.8 (11.6)
37 (74)
1.0 (2.0)
1.9 (3.8)
2
3
5
1.5 2.2 3.7
2.7 3.9 6.1
16.2 23.4 36.6
20 25 25
20 20 25
19 20 23
18 19 22
(1) 1/3 (249)
1.0
1.9
15
208/230V
14.7 (29.4)
91 (182)
2.4 (4.8)
4.7 (9.4)
2
3
5
1.5 2.2 3.7
7.5 10.6 16.7
46.9 66 105
60 60 70
60 60 70
48 51 57
46 49 55
(1) 1/3 (249)
2.4
4.7
15
LGA102H
460V
7.1 (14.2)
46 (92)
1.3 (2.6)
2.4 (4.8)
2
3
5
1.5 2.2 3.7
3.4 4.8 7.6
20.4 26.8 45.6
30 30 35
25 30 30
24 25 28
22 24 27
(1) 1/3 (249)
1.3
2.4
15
575V
5.1 (10.2)
37 (74)
1.0 (2.0)
1.9 (3.8)
2
3
5
1.5 2.2 3.7
2.7 3.9 6.1
16.2 23.4 36.6
20 20 25
20 20 25
18 19 21
17 18 20
(1) 1/3 (249)
1.0
1.9
15
8.5 TON STANDARD / HIGH EFFICIENCY
ModelNo.
Linevoltagedata−60Hz−3phase
208/230V
14.7 (29.4)
Rated load amps − each (total)
Compressors
p
(2)
91 (182)
Locked rotor amps − each (total)
2.4 (4.8)
Full load amps − each (total)
Condenser
F M t
FanMotors
(2)
4.7 (9.4)
Locked rotor amps − each (total)
3
5
Motor Output − hp 2
Evaporator
p
Bl
Blower
kW 1.5 2.2 3.7
Motor
Fullloadamps 7.5 10.6 16.7
Lockedrotoramps 46.9 66 105
1 Maximum Overcurrent
With Exhaust Fan 60 60 70
P t ti
Protection
((amps))
Less Exhaust Fan 60 60 70
2 Minimum Circuit
With Exhaust Fan 48 51 57
A
Ampacity
it
Less Exhaust Fan 46 49 55
(Number)Horsepower (W) (1) 1/3 (249)
Optional
p
Power
E h
Exhaust
t Fan
F
2.4
Fullloadamps
4.7
Lockedrotoramps
Service Outlet (2) 115 volt GFCI (amp rating)
15
10 TON STANDARD EFFICIENCY
ModelNo.
LGC120S (R−22)
Linevoltagedata−60Hz−3phase
208/230V
460V
575V
Rated load amps − each (total)
15.4 (30.8)
7.4 (14.8)
5.9 (11.8)
Compressors
p
(2)
Locked rotor amps − each (total)
124 (248)
59.6 (119.2)
49.4 (98.8)
Full load amps − each (total)
2.4 (4.8)
1.3 (2.6)
1.0 (2.0)
Condenser
F M t
FanMotors
(2)
Locked rotor amps − each (total)
2.4 (4.8)
1.9 (3.8)
4.7 (9.4)
Motor Output − hp 2
3
5
2
3
5
2
3
5
Evaporator
p
Bl
Blower
kW 1.5 2.2 3.7 1.5 2.2 3.7 1.5 2.2 3.7
Motor
Fullloadamps 7.5 10.6 16.7 3.4 4.8 7.6 2.7 3.9 6.1
Lockedrotoramps 46.9 66 105 20.4 26.8 45.6 16.2 23.4 36.6
1 Maximum Overcurrent
With Exhaust Fan 60 60 70 30 30 35 20 25 25
P t ti
Protection
((amps))
Less Exhaust Fan 60 60 70 30 30 30 20 25 25
2 Minimum Circuit
With Exhaust Fan 50 53 59 24 26 29 19 21 23
A
Ampacity
it
Less Exhaust Fan 47 51 57 23 25 27 18 20 22
(Number)Horsepower (W) (1) 1/3 (249)
(1) 1/3 (249)
(1) 1/3 (249)
Optional
p
Power
E h
Exhaust
t Fan
F
Fullloadamps
2.4
1.3
1.0
Lockedrotoramps
4.7
2.4
1.9
Service Outlet (2) 115 volt GFCI (amp rating)
15
15
15
NOTE−Extremesofoperatingrangeareplusandminus10%oflinevoltage.
1 HACR type breaker or fuse.
2 RefertoNational or CanadianElectricalCodemanualtodeterminewire,fuseanddisconnectsizerequirements.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 22
LGC120S (R−410A)
208/230V
460V
575V
20.5 (41)
9.6 (19.2)
7.6 (15.2)
155 (310)
75 (150)
54 (108)
2.4 (4.8)
1.3 (2.6)
1.0 (2.0)
4.9 (9.4)
2.4 (4.8)
1.9 (3.8)
2
3
5
2
3
5
2
3
5
1.5 2.2 3.7 1.5 2.2 3.7 1.5 2.2 3.7
7.5 10.6 16.7 3.4 4.8 7.6 2.7 3.9 6.1
46.9 66 105 20.4 26.8 45.6 16.2 23.4 36.6
80 80 90 35 35 40 30 30 30
70 80 80 35 35 40 25 30 30
61 64 71 29 31 34 23 24 27
59 62 68 28 29 32 22 23 26
(1) 1/3 (249)
(1) 1/3 (249)
(1) 1/3 (249)
2.4
1.3
1.0
4.7
2.4
1.9
15
15
15
electrical data
10 TON HIGH EFFICIENCY / 12.5 TON STANDARD EFFICIENCY
ModelNo.
Linevoltagedata−60Hz−3phase
Rated load amps − each (total)
Compressors
p
(2)
Locked rotor amps − each (total)
Full load amps − each (total)
Condenser
F M t
FanMotors
(2)
Locked rotor amps − each (total)
Motor Output − hp
Evaporator
p
Bl
Blower
kW
Motor
Fullloadamps
Lockedrotoramps
1 Maximum Overcurrent
With Exhaust Fan
P t ti
Protection
((amps))
Less Exhaust Fan
2 Minimum Circuit
With Exhaust Fan
A
Ampacity
it
Less Exhaust Fan
(Number)Horsepower (W)
Optional
p
Power
E h
Exhaust
tF
Fan
Fullloadamps
Lockedrotoramps
Service Outlet (2) 115 volt GFI (amp rating)
208/230V
17.3 (34.6)
123 (246)
2.4 (4.8)
4.9 (9.4)
2
3
5
1.5 2.2 3.7
7.5 10.6 16.7
46.9 66 105
70 70 80
60 70 70
54 57 63
52 55 61
(1) 1/3 (249)
2.4
4.7
15
LGA120H
460V
9.0 (18.0)
62 (124)
1.3 (2.6)
2.4 (4.8)
2
3
5
1.5 2.2 3.7
3.4 4.8 7.6
20.4 26.8 45.6
35 35 40
35 35 35
28 29 32
27 28 31
(1) 1/3 (249)
1.3
2.4
15
575V
7.1 (14.2)
50 (100)
1.0 (2.0)
1.9 (3.8)
2
3
5
1.5 2.2 3.7
2.7 3.9 6.1
16.2 23.4 36.6
25 30 30
25 25 30
22 23 26
21 22 25
(1) 1/3 (249)
1.0
1.9
15
208/230V
18.6 (37.2)
156 (312)
3.0 (6.0)
6.0 (12.0)
2
3
5
1.5 2.2 3.7
7.5 10.6 16.7
46.9 66 105
70 70 80
70 70 80
58 61 67
56 59 65
(1) 1/3 (249)
2.4
4.7
15
LGC150S
460V
9 (18)
75 (150)
1.5 (3.0)
3.0 (6.0)
2
3
5
1.5 2.2 3.7
3.4 4.8 7.6
20.4 26.8 45.6
35 35 40
35 35 35
28 30 33
27 29 31
(1) 1/3 (249)
1.3
2.4
15
575V
7.4 (14.8)
54 (108)
1.2 (2.4)
2.9 (5.8)
2
3
5
1.5 2.2 3.7
2.7 3.9 6.1
16.2 23.4 36.6
30 30 30
25 30 30
23 24 27
22 23 26
(1) 1/3 (249)
1.0
1.9
15
NOTE−Extremesofoperatingrangeareplusandminus10%oflinevoltage.
1 HACR type breaker or fuse.
2 RefertoNational or CanadianElectricalCodemanualtodeterminewire,fuseanddisconnectsizerequirements.
INSTALLATION CLEARANCES − INCHES (MM)
36
(914)
OPTIONAL
OUTDOOR
AIR HOOD
36
(914)
BLOWER
36
(914)
NOTE − Top Clearance 60 in. (1524 mm).
NOTE − Entire perimeter of unit base requires support when elevated above mounting surface.
1
60 in. (1524 mm) recommended service clearance
for blower deck removal
1 36
(914)
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 23
FIELD WIRING
L CONNECTION® SYSTEM CONTROLLER
NETWORK
CONTROL
PANEL
OPTIONAL
INDOOR RELATIVE
HUMIDITY SENSOR
OPTIONAL
DISCONNECT
SWITCH
1
F
C
B
A − Three wire power (See unit Electrical Data Table)
B − Two wire low voltage 20 AWG minimum
C − One twisted pair with shield. Lennox #27M19 (Belden type 88761)
or equivalent (Must be daisy chained to each unit if more than one
unit is connected to Network Control Panel).
D − Four wire low voltage 20 AWG minimum
E − Two wire power (115 volt)
F − Three conductor twisted with shield. Two single twisted pair cables
(Lennox #27M19), one double twisted pair cable (Belden type
88723) or equivalent.
A
SINGLE
PACKAGE
UNIT
To other units in network (up to 31). C
D
C
Field wiring not furnished NOTE All wiring must conform to NEC or CEC and local electrical codes.
1 Optional wall−mount transformer (18M13) may be used to power the NCP
instead of using the unit’s 24vac.
B
OPTIONAL
INDOOR AIR
QUALITY CO2
SENSOR
WALL
MOUNTED ZONE
SENSOR
2 OPTIONAL
AFTER HOURS
PUSHBUTTON
115 VOLT
SERVICE
OUTLET
2 For
use with
duct mounted
zone sensor
E
ALL UNIT CONTROLLER SYSTEMS
A
B
C
D
−
−
−
−
Three wire power (See Electrical Data Table)
Shielded twisted pair cable
Four wire low voltage
Two wire low voltage (CPC 810-3062)
Three wire low voltage (CSI MR88R)
Four wire low voltage (Johnson Metasys UNT)
Four wire low voltage (Novar Custom Controller) + 2 wire low voltage (Novar
Custom Controller)
Seven wire low voltage (Honeywell Excel 10 W7750B)
E − Two wire power (115 volt)
F − Three conductor twisted with shield. Two single twisted pair cables
(Lennox #27M19), one double twisted pair cable (Belden type
88723) or equivalent.
− Field wiring not furnished −
NOTE − All wiring must conform to NEC or CEC and local electrical codes.
FIELD FURNISHED
GLOBAL
CONTROLLER
OPTIONAL
DISCONNECT
SWITCH
B
A
SINGLE
PACKAGE
UNIT
F
C
OPTIONAL
INDOOR
RELATIVE
HUMIDITY SENSOR
OPTIONAL
INDOOR AIR
QUALITY CO2
SENSOR
OPTIONAL
ROOM
SENSOR
115 VOLT
SERVICE
OUTLET
D
E
ELECTRO-MECHANICAL, ELECTRONIC OR HONEYWELL T7300 THERMOSTAT CONTROL SYSTEM
OPTIONAL
NITE
THERMOSTAT
OPTIONAL
THERMOSTAT
OPTIONAL
DISCONNECT
SWITCH
C
B
A
SINGLE
PACKAGE
UNIT
G
OPTIONAL
REMOTE
TEMPERATURE
SENSOR
H
OPTIONAL
INDOOR RELATIVE
HUMIDITY
SENSOR
D
OPTIONAL
INDOOR AIR
QUALITY CO2
SENSOR
E
OPTIONAL
TIME
CLOCK
115 VOLT
SERVICE
OUTLET
F
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 24
A − Three wire power (See Electrical Data Table)
B − Six wire low voltage (Electro-Mechanical)
Seven wire low voltage (Electronic)
Nine wire low voltage (Honeywell T7300)
Ten wire low voltage (Honeywell T7300 with Service LED)
C − Two wire low voltage (Electro-Mechanical Only)
D − Four wire low voltage (All Systems)
E − Two wire power
F − Two wire power (115 volt)
G − Two wire low voltage
− Seven wire low voltage (T7300 Room Sensor with override)
H − Three conductor twisted with shield. Two single twisted pair cables
(Lennox #27M19), one double twisted pair cable (Belden type
88723) or equivalent.
Field wiring not furnished NOTE All wiring must conform to NEC or CEC and local electrical codes.
L CONNECTION® BUILDING AUTOMATION SYSTEM
Network Control Up To 31 Units − Large LCD Display Screen − 7 Day Programming plus Holidays − Six Different Time/Temperature Schedules per Day − Storage of Last 75 Alarms With Time/Date − Remote Access (with NCP PC Software)
NCP1 Network Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
59L21
ZONE TEMPERATURE SENSORS (One sensor required per unit)
Order
No.
Description
Wall−Mount After Hours Override Button − Terminal Block Connection − Network Jack for L Connection PC
Software
Wall Mounted Zone Sensor − With warmer/cooler adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
56L80
Wall Mounted Zone Sensor − Without warmer/cooler adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
94L60
Miniature Wall−Mount − Terminal Block Connection
Miniature Wall Mounted Zone Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
94L61
Wall−Mount − Terminal Block Connection
Wall Mounted Zone Sensor − use with Building Controller (BC1) for monitoring critical areas . . . . . . . . .
59M04
Wall−Mount − Leaded Connection
Flush Mount Zone Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
76M32
Temperature Averaging Kit
Two zone sensors for temperature averaging in one room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23M20
Duct−Mount (For return air duct)
Duct Mounted Zone Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
56L81
Wall Mounted Zone Humidity Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17M50
Duct Mounted Relative Humidity Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
76M31
ZONE HUMIDITY SENSOR
OUTDOOR TEMPERATURE SENSOR
Mounted in watertight enclosure with a sun shield. Use with Building Controller (BC1) to monitor outdoor temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
59M05
CO2 SENSORS
Sensor − white case, CO2 display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sensor − white case, no display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sensor − black case, CO2 display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sensor − duct mounted, black, no display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AFTER HOURS REMOTE OVERRIDE BUTTON
After Hours Remote Override Button − Wall Plate furnished (Use with Duct Mounted Zone Sensor if
required) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
77N39
87N53
87N52
87N54
56L16
Continued on next page "
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 25
L CONNECTION® BUILDING AUTOMATION SYSTEM
Description
Order
No.
NETWORK THERMOSTAT CONTROL (REQUIRED) − DDC that allows network control of T−Class Packaged Units or Splits over L Connectiont Network
1
Description
Order
No.
NTC1 − 2 Htg.−3 Clg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17M10
PC SOFTWARE
FOR SETUP, CONFIGURATION AND SCHEDULE ADJUSTMENT OF THE NETWORK CONTROL PANEL (NCP)
Network Control Panel (NCP) Software
For Remote/Local NCP access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
96L82
NOTE − Requires PC Converter Kit (96L78) for local access and Network Modem Kit (94L62) for remote access
FOR SETUP, CONFIGURATION AND SERVICING OF NETWORK THERMOSTAT CONTROL (NTC)
Unit Controller Software
For Remote/Local network control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
96L80
NOTE − Requires PC Converter Kit (96L78) for local access and Network Modem Kit (94L62) for remote access
NETWORK MODEM KIT − Provides direct digital communication between a single rooftop unit (or network of rooftop units) and the Network Control Panel
Connects phone line directly to L Connection network − Includes modem, PC Converter, cables . . . . . .
94L62
NOTE − Requires either NCP software and/or Unit Controller Software
BUILDING CONTROLLER
BC1−1 − Use to control lights, vent hoods, exhaust fans, sprinklers and other devices based upon unit
occupied operation or time schedule.
17M12
Use with the Building Controller, the monitor sends a 24VAC output to a building control device to load
shed when electrical demand is high. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
76M33
kWH DEMAND CONTROLLER
NOTE − Requires kWH meter with KYZ output.
1
Computer system requirements: IBM compatible PC with Pentium or higher processor, Microsoft® Windows® 95, 98, Me, 2000, XP, or NT®. (Windows® 95, Windows® 98,
Windows® Me, Windows® 2000, Windows® XP, and Windows® NT® are registered trademarks of Microsoft Corp.), 256 MB RAM (more memory may be required to run additional
applications simultaneously), requires at least 20 MB of free hard drive space, VGA or higher resolution monitor (screen resolution must be 800 X 600 or higher and 256 colors),
CD−ROM drive, mouse or compatible pointing device, serial COM port, PC modem (model no. USR5699B, USR5610B, USR5686E, 005686−03, 3CP5610A, 3CP5699A,
005687−03, or USR3686D is recommended) for remote connections.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 26
L CONNECTION® BUILDING AUTOMATION SYSTEM
Description
Order
No.
Use with the Building Controller and Network Control Panel for automatic lighting control . . . . . . . . . . .
34M67
NEMA Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17M11
For Network Modem Kit or Building Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34M23
For Network Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34M24
AMBIENT LIGHT SENSOR
NEMA 1 ENCLOSURES
NETWORK PHONE LINE AUTO−ROUTER
(Allows modem, fax and phone to share one line − routes signal to connect to device automatically)
Network Phone Line Auto−Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34M22
NETWORK BUS TO PC CONVERTER KIT
Allows PC connection to L Connection network − Required for any L Connection PC software when
used on a local network
96L78
500 ft. Roll − RS−485 twisted pair communication wire − plenum rated . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27M19
1000 ft. Roll − RS−485 twisted pair communication wire − plenum rated . . . . . . . . . . . . . . . . . . . . . . . . . . .
94L63
2500 ft. Roll − RS−485 twisted pair communication wire − plenum rated . . . . . . . . . . . . . . . . . . . . . . . . . . .
68M25
COMMUNICATION CABLE
NETWORK CONTROL PANEL WALL TRANSFORMER − Separate power supply for NCP (if desired)
Screw terminals
Transformer − 20VA, Class 2, Primary 120V, 60Hz, Secondary 24V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18M13
MISCELLANEOUS COMPONENTS
Air Flow Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18L89
Dirty Filter Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31L11
Outdoor Air Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14K92
Discharge Air Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
99K64
Return Air Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
99K64
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 27
OPTIONAL UNIT CONTROLLERS − FACTORY OR Field Installed
Field Installed
Catalog No.
System and Component Description
CPC 810−3062
Control Module/Blower Proving Switch/Return Air Sensor/Discharge Air Sensor/Wiring Harness − Network communications (RS−485, shielded pair twisted wire), 8 analog/digital inputs, 8 form−C relay outputs, 2 analog outputs, 24 VAC, output
connections (2 stage heat/2 stage cool, 2 auxiliary outputs (user defined), economizer, fan), input connections (space temperature, discharge and return air temperature, 2 compressor monitoring, 2 aux. inputs (user defined), local override (1 to 240 minutes), Blower Proving Switch monitors blower operation and locks out unit in case of blower failure, Return Air Sensor provides
input to module to determine heating or cooling operation and number of stages required, Discharge Air Sensor monitors leaving air temperature during unit operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
71M57
Sensor − Room temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
48J43
Dirty Filter Switch − Senses static pressure increase indicating a dirty filter condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30K48
NO
START
CPC 810-3062 2 Heat/2 Cool
Includes: Control Module, Blower Proving
Switch, Return Air Sensor, Discharge Air
Sensor, Room Sensor (in kits 61J80 and
61J81 Only) and Wiring Harness
NO
DIRTY
FILTER
SWITCH
ROOM
SENSOR
(48J43)
(30K48)
STOP
Field Installed
Catalog No.
System and Component Description
CSI MR88R
Control Module/Blower Proving Switch/Return Air Sensor/Discharge Air Sensor/Wiring Harness − Small point count controller, supports free-form modular DDC programming, intelligent I/STAT for independent local analog or digital control, local
override and setpoint adjustment, 4 local or global points, integral start/stop schedule, standalone operation, universal inputs
(thermistor, voltage, current, contact), 8 relay or low voltage triac outputs, analog outputs, 7 signal inputs plus power, ISTAT
port, MR LAN port (RS−485, shielded pair twisted wire), self test diagnostics with LED readout, input point parameters (normal
and narrow range, indoor and outdoor temperature range, individual calibration) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
71M56
Sensor − Room temperature sensor with microprocessor data communications and power, alphanumeric LCD display for modes
selected, mode selection push buttons for (Function, Call, Service, Change and Select), password protection for Service mode,
up to 4 global point assignment with red LED’s to indicate (Set Temp., Fan Speed, Room and Outside) . . . . . . . . . . . . . . . . . . . .
I/STAT
(Field Furnished)
Dirty Filter Switch − Senses static pressure increase indicating a dirty filter condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30K48
NO
START
CSI MR88R 2 Heat/2 Cool
Includes: Control Module, Blower Proving
Switch, Return Air Sensor, Discharge Air
Sensor and Wiring Harness
DIRTY
FILTER
SWITCH
(30K48)
STOP
HONEYWELL EXCEL 10 (W7750B)
Control Module (W7750B)/Blower Proving Switch/Discharge Air Sensor/Return Air Sensor/Wiring Harness − Standalone
control (staged or modulating) of all heating, cooling, mixed air, system fan and economizer functions, up to four stages of heating/cooling combinations, for single zone applications, 6 relay outputs, 2 digital inputs, 1 resistive analog input, network communications, LonMark compliant, configuration options include: supply fan type of air handler, occupancy sensor, window sensor, wall module option, dirty filter monitor, indoor air quality override and smoke control. modes of operation include: occupied,
standby, unoccupied, bypass occupied, override modes, start−up and wait, cooling, heating, emergency heat, off mode, disabled mode, smoke emergency, freeze protect, manual position, fan only and disabled. Blower Proving Switch monitors blower
operation and locks out unit in case of blower failure, Return Air Sensor provides input to module to determine heating or cooling operation and number of stages required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..
71M59
Sensor − Room temperature, with setpoint knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19L21
Dirty Filter Switch − Senses static pressure increase indicating a dirty filter condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30K48
NO
NO
START
HONEYWELL EXCEL 10 (W7750B)
4 Heat/4 Cool
Includes: Control Module, Blower Proving
Switch, Discharge Air Sensor, Return Air Sensor
and Wiring Harness
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 28
T7770
ROOM
SENSOR
DIRTY
FILTER
SWITCH
(19L21)
(30K48)
STOP
OPTIONAL UNIT CONTROLLERS − Factory or Field Installed
JOHNSON METASYS UNT
Control Module/Blower Proving Switch/Wiring Harness −Standalone control of all heating, cooling and economizer functions, various operation modes (including: occupied, unoccupied, warm-up, standby), network communications, 6 analog
inputs, 4 binary inputs, momentary override, zone lighting control, advanced unit diagnostics, indoor air quality control, outdoor air temperature and humidity monitoring, alarm monitoring of: sensors, airflow, economizer, dirty filter, heating /cooling
operation, cooling limit, Blower Proving Switch monitors blower operation and locks out unit in case of blower failure, Control
module may be used in multi−zone applications (i.e. L−Zone). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
71M62
(208/230V−3ph)
71M63
(460V−3ph)
71M64
(575V−3ph)
Commissioning Tool − Hand−held interface tool, monitor & adjust 36 analog/binary points, carrying case. . . . . . . . . . . . . . . . .
60K37
Sensor − Room temperature, phone jack style wiring, quick−mount design, latching door mechanism, setpoint adjustment
(warmer/cooler), optional override button, nickel sensors, options for choosing setpoint, indication, mounting and wiring
type, plug for handheld commissioning tool (60K36). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
42N44
Dirty Filter Switch − Senses static pressure increase indicating a dirty filter condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30K48
NO
NO
START
JOHNSON METASYS UNT 2 Heat/2 Cool
Includes: Control Module, Discharge Air Sensor,
Return Air Sensor, Blower Proving Switch and
Wiring Harness
TE-6411
ROOM
SENSOR
DIRTY
FILTER
SWITCH
(42N44)
(30K48)
STOP
NOVAR ETM−2051
Electronic Thermostat Module (ETM)/Blower Proving Switch/Return Air Sensor/Discharge Air Sensor/Wiring Harness −
Module monitors unit operation from different sensors installed in unit and monitors unit diagnostic codes of the IMC. The ETM
has outputs for 2 stage heat/2 stage cool, 7 relay outputs: fan Cool 1, Cool 2. Heat 1, Heat 2, Economizer, Night Mode, automatic
or continuous blower operation, economizer damper operation and night setback, features: day/occupied mode with low enthalpy (outdoor air damper open), high enthalpy (outdoor air damper closed) or night/unoccupied mode (outdoor air damper closed),
network communication (RS−485, shielded pair twisted wire), local override (1 to 255 minutes), watchdog function, fail−safe operation, ETM allows units to be daisy chained" together (up to 31 units) to be operated from one central location with an executive" type control processor (on−site or off−site), built-in time delays, built-in unit operating defaults, diagnostic LED’s indicate
various operating functions, surge suppression protects ETM against lightning or voltage spikes, Blower Proving Switch monitors blower operation and locks out unit in case of blower failure, Return Air Sensor provides input to ETM module to determine
heating or cooling operation and number of stages required, Discharge Air Sensor monitors leaving air temperature during unit
operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
71M58
Dirty Filter Switch − Senses static pressure increase indicating a dirty filter condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30K48
Room Temperature Sensor with Built−in Night Setback Override Button − Provides input to ETM module to determine heating
or cooling operation and number of stages required (ordered separately). Override button allows momentary override of night
setback during unoccupied mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
67K61
Sensor − Remote switch over . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18L36
NO
NO
NO
START
NOVAR ETM-2051 2 Heat/2 Cool
Includes: Control Module, Blower Proving
Switch, Return Air Sensor, Discharge Air
Sensor and Wiring Harness
ROOM SENSOR W/
NIGHT SETBACK
OVERRIDE BUTTON
REMOTE
SWITCH OVER
SENSOR
DIRTY
FILTER
SWITCH
(67K61)
(18L36)
(30K48)
STOP
NOVAR CUSTOM CONTROLLER
Control Module/Blower Proving Switch/Discharge Air Sensor/Room Air Sensor/Wiring Harness − User definable comfort
setpoint, on/off and time of day control, cycle II ventilation control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
71M65
Dirty Filter Switch − Senses static pressure increase indicating a dirty filter condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30K48
NO
START
NOVAR CUSTOM CONTROLLER
2 Heat/2 Cool (48K89)
Includes: Control Module, Blower Proving
DIRTY
FILTER
SWITCH
Switch, Discharge Air Sensor, Room Air
Sensor and Wiring Harness
(30K48)
STOP
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 29
OPTIONAL CONVENTIONAL TEMPERATURE CONTROL SYSTEMS − Field Installed
Field Installed
Catalog No.
System and Component Description
ELECTRO-MECHANICAL THERMOSTAT
Thermostat − Two stage heat & two stage cool with dual temperature levers, subbase choice . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Subbase − Manual system switch (Off-Heat-Auto-Cool), fan switch (Auto-On) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Subbase − Non-switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Night Setback Operation − Order components below
Heating Thermostat − Single stage heat / Single stage cool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Subbase − Non-switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time Clock − 7 day operation, indicates day and night periods, 2 hour increments, battery back-up . . . . . . . . . . . . . . . . . . . . . . .
Time Clock − 24 hour night setback operation, 15 minute increments, battery back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Proving Switch − Monitors blower operation, locks out unit in case of blower failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dirty Filter Switch − Senses static pressure increase indicating a dirty filter condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13F06
13F17
13F16
12F99
13F16
See Price Book
See Price Book
30K49
30K48
NO
NON
SWITCHING
SUBBASE
7 DAY
TIME
CLOCK
(13F16)
START
ELECTRO
MECHANICAL
THERMOSTAT
(13F06)
2 Heat−2 Cool
NIGHT
THERMOSTAT
1 Heat/1 Cool
NON
SWITCHING
SUBBASE
(12F99)
(13F16)
NO
24 HOUR
TIME
CLOCK
SWITCHING
SUBBASE
(13F17)
NO
BLOWER
PROVE
SWITCH
DIRTY
FILTER
SWITCH
(30K49)
(30K48)
ELECTRONIC THERMOSTAT
Electronic Thermostat − Any two stage heat/ two stage cool electronic thermostat may be used. . . . . . . . . . . . . . . . . . . . . . . . . . .
Time Clock − 7 day operation, indicates day and night periods, 2 hour increments, battery back-up . . . . . . . . . . . . . . . . . . . . . . .
Time Clock − 24 hour night setback operation, 15 minute increments, battery back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Proving Switch − Monitors blower operation, locks out unit in case of blower failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dirty Filter Switch − Senses static pressure increase indicating a dirty filter condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STOP
See Price Book
See Price Book
See Price Book
30K49
30K48
LESS ECONOMIZER
NO
NO
START
7 DAY
TIME
CLOCK
*ELECTRONIC
ROOM
THERMOSTAT
2 Heat−2 Cool
WITH ECONOMIZER
* Any 2 stage heat/ 2 stage cool electronic
thermostat may be used.
See Lennox Price Book, Thermostats and Controls, Tab
for selection.
24 HOUR
TIME
CLOCK
BLOWER
PROVE
SWITCH
DIRTY
FILTER
SWITCH
(30K49)
(30K48)
STOP
NO
HONEYWELL T7300 THERMOSTAT
Thermostat − Programmable, internal or optional remote temperature sensing (sensor required), touch sensitive keyboard, automatic switching, F or C readout, no anticipator, droop/no droop selection, indicator LED’s, hour/day programming, override capabilities, time and operational mode readout, stage status indicators, battery back-up, subbase choice, manual system switch (Heat-OffAuto-Cool), fan switch (Auto-On) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Subbase − Selectable staging, indicator LED’s, auxiliary relay output for economizer operation
2 Heat / 2 Cool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Heat / 3 Cool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sensor − Room temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sensor − Room temperature with 3 hour override and setpoint adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sensor − Return air temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blower Proving Switch − Monitors blower operation, locks out unit in case of blower failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dirty Filter Switch − Senses static pressure increase indicating a dirty filter condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
37L54
37L55
37L53
58C92
86G67
27C40
30K49
30K48
NO
SWITCHING
SUBBASE
(37L55)
2 Heat−2 Cool
START
ROOM
TEMPERATURE
SENSOR
(37L54)
(86G67)
SWITCHING
SUBBASE
(37L53)
RETURN AIR
TEMPERATURE
SENSOR
3 Heat−3 Cool
(27C40)
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 30
NO
(58C92)
ROOM
TEMPERATURE
SENSOR
W/OVERRIDE
T7300
THERMOSTAT
NO
BLOWER
PROVE
SWITCH
DIRTY
FILTER
SWITCH
(30K49)
(30K48)
STOP
DIMENSIONS AND WEIGHTS − INCHES (MM)
Shown With Optional Economizer Dampers, Power Exhaust Fans, Convenience Outlet, Unit Disconnect
WEIGHTS
Net
lbs.
kg
Model
M
d l
Number
090/102 Base Unit
090/102 Max. Unit
120 Base Unit
120 Max. Unit
150 Base Unit
150 Max. Unit
1300
1525
1355
1580
1390
1615
590
692
615
717
630
733
Shipping
lbs.
kg
CORNER WEIGHTS
AA
BB
lbs.
kg
lbs.
kg
CC
lbs.
kg
DD
lbs.
kg
1385
1610
1440
1665
1475
1700
314
381
328
394
336
403
329
374
343
387
353
398
368
431
384
447
389
450
628
730
653
755
669
771
142
173
149
179
152
183
289
339
300
352
312
364
131
154
136
160
152
165
149
170
156
176
160
181
CENTER OF GRAVITY
EE
FF
inch
mm
inch
47
1194
21-1/2
46
1168
23-1/2
47
1194
21-1/2
46
1168
23-1/2
47−1/2 1207
22
46−1/2 1181
24
167
195
174
203
176
204
mm
546
597
546
597
559
610
ACCESSORY SHIPPING WEIGHTS (add to base unit weight)
Economizer + Hood
Outdoor Air Damper + Hood
58 lbs.
42 lbs.
26 kg
19 kg
Power Exhaust
LTL Packaging (less than truck load)
28 lbs.
105 lbs.
13 kg
48 kg
Base Unit − The unit with NO OPTIONS.
Max. Unit − The unit with ALL OPTIONS Installed. (Economizer, Power Exhaust Fans, and Controls)
OPTIONAL
OUTDOOR
AIR HOOD
(Factory or
Field Installed)
CONDENSER COIL
INTAKE AIR
CONDENSER
COIL FAN (2)
4 (102)
AA
4 (102)
28
(711)
CONDENSER
COIL
INTAKE
AIR
EVAPORATOR COIL
28
(711)
20
(508)
5-1/2
(140)
EE
CENTER
OF
GRAVITY
BOTTOM
POWER/GAS ENTRY
5 x 8 inches
(127 x 203 mm)
FF
DD
OPTIONAL
115 VOLT OUTLET
(Factory Installed)
(Inside Unit)
BLOWER
MOTOR
BOTTOM
SUPPLY AIR
OPENING
6-1/4 20
(159) (508)
BOTTOM
RETURN AIR
OPENING
BLOWER
COMPRESSORS
BB
CC
3-1/2 (89)
31-1/4
(794)
CONDENSER
COILS
TOP VIEW
TOP VIEW BASE SECTION
CONDENSER COIL
EXHAUST AIR
CONDENSER COIL
EXHAUST AIR
99-1/4
(2521)
99-1/4
(2521)
OPTIONAL DISCONNECT
(Factory Installed)
CONTROL
BOX
CONDENSER
COIL FAN
BLOWER
BLOWER
CONDENSER
COIL
INTAKE
AIR
15 (381)
1/2
(13)
ELECTRIC INLETS
35
(889)
GAS
INLET
HEAT
EXCHANGER
FORKLIFT
SLOTS
(Both Sides)
LIFTING HOLES
(For Rigging)
28
(711)
HORIZONTAL
RETURN AIR
OPENING
HORIZONTAL
SUPPLY AIR
OPENING
21-3/4
(552)
OPTIONAL OUTDOOR AIR
HOOD
(Factory or Field Installed)
Required with Economizer or
Outdoor Air Damper
EVAPORATOR
COIL
58
(1473)
FILTERS
EVAPORATOR
COIL
CONTROL
BOX
FILTER
OUTDOOR
50 1 OPTIONAL BAROMETRIC AIR
(1270)
RELIEF DAMPERS
(Factory or Field Installed)
FILTER
OUTDOOR
AIR
46-3/4
(1187)
OPTIONAL OUTDOOR
AIR HOOD
(Factory or Field
Installed)
OPTIONAL OUTDOOR
AIR DAMPERS
(Manual or Automatic)
(Factory or Field
Installed)
5-1/2
(140)
SIDE VIEW (Horizontal Openings)
58
(1473)
FILTERS
20
(508)
5
(127)
FLUE
OUTLET
SIDE VIEW
21-3/4
(552)
6-1/4
(159)
28
(711)
END VIEW
(Outdoor Air Dampers)
3-1/4
(83)
CONDENSATE
DRAIN
1
OPTIONAL EXHAUST
HOOD (Field Installed)
EXHAUST
AIR
OPTIONAL POWER
EXHAUST FANS
(Factory or Field Installed)
Down-flow Applications Only
OPTIONAL ECONOMIZER
DAMPERS
(Factory or Field Installed)
5
(127)
21-1/4
(540)
END VIEW
(Economizer/Barometric Relief/Power Exhaust)
1
NOTE Field Installed in Return Air Duct for Horizontal Applications.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 31
ACCESSORY DIMENSIONS − INCHES (MM)
LARMF10/15−14 and LARMF10/15−24 STANDARD ROOF CURBS − DOUBLE DUCT OPENING
95-3/8
(2423)
1-13/16
(46)
1-13/16
(46)
Opening
Frame
31-1/8
(791)
21-1/2
(546)
3-3/4 (95)
1-13/16
(46)
91-3/4 Opening
(2330) Frame
A
30-1/2
(775)
1-13/16 (46)
CURB
SUPPLY AIR
OPENINGS
CURB
RETURN AIR
OPENINGS
NAILER STRIP
(Furnished)
A
1
(25)
14
(356)
or
24
(610)
50-5/8
(1286)
54-1/4
(1378)
14 (356) LARMF10/15-14
24 (610) LARMF10/15-24
NAILER
STRIP
(Furnished)
NOTE Roof deck may be omitted within confines of curb.
95-3/4
(2432)
2
(51)
SIDE VIEW
SECTION A-A
1-13/16
(46)
TOP VIEW
LARMF10/15S−14, LARMF10/15S−18 and LARMF10/15S−24 CLIPLOCK 1000 ROOF CURBS − DOUBLE DUCT OPENING
2"
(50.8)
95−3/8"
(2422.525)
91−3/4"
(2330.45)
3−3/4"
(95.25)
54−1/4"
(1377.95)
30−1/2"
(774.7)
SUPPLY AIR
OPENING
31−3/8"
(796.925)
14 (356)
18 (457)
24 (635)
RETURN AIR
OPENING
1−13/16"
(46.0375)
CORNER DETAIL
21−1/2"
(546.1)
TOP EDGE
WOOD NAILER STRIP
2"
(50.8)
FACTORY INSTALLED
PERIMETER WOOD
NAILER STRIP
2" MIN.
(50.8)
BOTTOM FLANGE
TYPICAL SLOT
TYPICAL LOCKING TAB
TYPICAL FLASHING DETAIL FOR ROOF CURB
ROOF CURB SPECIFICATIONS
UNIT BASE
BOTTOM
Roof Curb is rigid enough to be spanned over its entire
length or cantilevered if supported on both sides of center of gravity.
UNIT BASE RAIL
Roof Curb
1 Moment
FIBERGLASS
INSULATION
(Furnished)
1Section
COUNTER FLASHING
(Field Supplied)
NAILER STRIP
(Furnished)
ROOF CURB
(Extends around entire
perimeter of unit)
of inertia (I)
modulus
(in.4)
LARMF10/15-14 LARMF10/15-24
(cm4)
I
(in.3) (cm3)
C
Curb weight. (lb/ft.) (kg/m) of length
CANT STRIP
(Field Supplied)
ROOFING
MATERIAL
RIGID INSULATION
(Field Supplied)
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 32
Design strength (psi) (kPa)
1
Includes both sides of curb.
39 (1634)
160 (6639)
5.5 (90)
13.1 (512)
5.5 (8.2)
8.5 (12.7)
20,000 (137,900) 20,000 (137,900)
ACCESSORY DIMENSIONS − INCHES (MM)
LARMF10/15−14 and LARMF10/15−24 ROOF CURBS
WITH LASRT SUPPLY & RETURN AIR TRANSITIONS FOR FD11 & RTD11 CEILING DIFFUSERS
95-3/8
(2423)
1-13/16
(46)
1-13/16
(46)
Opening
Frame
(for 090 models with FD11−95, RTD11−95 Diffusers)
Typ.
11
(279)
50-5/8
(1286)
LASRT08/10 ROUND TRANSITIONS
1-13/16
(46)
91-3/4 Opening
(2330) Frame
30
(762)
11
(279)
RETURN
AIR
OPENING
SUPPLY
AIR
OPENING
31-1/2 (800)
LASRT08/10
1−1/2
(38)
31 (787)
8
(203)
LASRT10/12
39-1/2 (1003)
LASRT15
54-1/4
(1378)
20 in. (508 mm) Diameter
31-1/8
(791)
3-3/4 (95)
30-1/2
(775)
LASRT10/12 & LASRT15 RECTANGULAR TRANSITIONS
(for 102 thru 150 models with FD11−135−185, RTD11−135−185 Diffusers)
1-13/16
(46)
TOP VIEW
Typ.
30
(762)
NAILER STRIP
(Furnished)
INSULATION
(Furnished)
1-1/2
(38)
31 (787)
LASRT10/12
39 (991)
LASRT15
8 (203)
14 (356) LARMF10/15-14
24 (610) LARMF10/15-24
2
(51)
8
(203)
2 (51)
28 (711)
95-3/4
(2432)
LASRT10/12
NOTE Roof deck may be omitted within confines of curb.
SIDE VIEW
36 (914)
LASRT15
18
(457)
LAGEDH03/15 HORIZONTAL BAROMETRIC RELIEF DAMPERS − Field installed in horizontal return air duct adjacent to unit
31−5/8 (803)
14−1/2
(368)
1 29−1/2 (749)
6−1/2
(165)
FRONT VIEW
SIDE VIEW
113
(330)
1 NOTE
− Opening size required in return air duct.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 33
ACCESSORY DIMENSIONS − INCHES (MM)
COMBINATION CEILING SUPPLY AND RETURN DIFFUSERS
RTD11−95 STEP−DOWN
45−5/8
(1159)
23−3/4
(603)
FD11−95 FLUSH
27−5/8
(702)
11−7/16
(291)
2 (51)
27−5/8
(702)
45−5/8
(1159)
13−13/16
(351)
11−7/16
(291)
23−3/4
(603)
16−1/8 (410)
19−1/2
(495)
11−3/8
(289)
20 (508)
DUCT SIZE
20 (508)
DUCT SIZE
8−1/8
(206)
47−5/8
(1210)
29−5/8
(752)
13−13/16
(351)
2 (51)
47−5/8
(1210)
29−5/8
(752)
RTD11−135−185 STEP−DOWN
FD11−135−185 FLUSH
E
J
4-5/8 (117)
F
H
H
C
G
2
(50)
G
4-5/8 (117)
B
D
F
F
2
(50)
E
A
A
C
K
H
B
D
A
Model
Number
inch
RTD11-135
RTD11-185
Model
Number
B
C
D
E
A
B
C
D
mm
inch
mm
mm
Model
Number
inch
mm
inch
mm
inch
mm
inch
28
711 18-7/8 479
9-1/8
232 35-5/8 905 33-5/8 854
FD11-135
24-1/8
613
35-5/8
905
33-5/8
854
28
711
34
864 23-7/8 606 10-1/8 257 47-5/8 1210 45-5/8 1159
FD11-185
30-1/8
613
47-5/8
1210
45-5/8
1159
36
914
inch mm
Model
Number
inch
mm
inch
mm
inch
mm
inch
mm
mm
F
inch
G
inch mm
inch
inch
H
mm
inch
J
mm inch mm
inch
K
mm
E
F
G
mm
H
RTD11-135
28
711 2-13/16
71
18
457 45-5/8 1159 47-5/8 1210
FD11-135
2-13/16
71
18
457
45-5/8
1159
47-5/8
1210
RTD11-185
36
914 4-13/16 122
18
457 45-5/8 1159 47-5/8 1210
FD11-185
4-13/16
122
18
457
45-5/8
1159
47-5/8
1210
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 34
GUIDE SPECIFICATIONS
Specifying Engineer Please Note − These Guide Specifications cover all L Series units (3 thru 30 tons).
Please edit to accurately identify the options selected for the job.
SECTION 15730
UNITARY AIR CONDITIONING EQUIPMENT
Q. EPACT: US Energy Policy Act of 1992. (US Only)
R.
PART 1 GENERAL
1.3
1.1
A.
SUMMARY
1.
B.
1.2
Related Sections:
1. Division I – General Requirements
2. Section 05580 – Formed Metal Fabrications: Custom
enclosures for the rooftop unit.
3. Section 15080 – Mechanical Insulation: Duct and pipe
insulation for the rooftop unit.
4. Section 15800 – Air Distribution: Ducts, duct
accessories, fans, air terminal units, air outlets & inlets,
and air cleaning devices associated with the rooftop unit.
5. Section 15900 – HVAC Instrumentation and Controls:
Controls for the rooftop unit.
6. Section 15950 – Testing, Adjusting and Balancing:
Procedures for testing, adjusting and balancing the
rooftop unit.
7. Division 7 – Fire Alarm Section
REFERENCES
ASNI/ASHRAE Standard 15 – 2001: Safety Standard for
Refrigeration Systems
B.
ASHRAE Standard 62.1 – 2001: Ventilation Standard for
Acceptable Indoor Air Quality.
C. ANSI/ASHRAE/IESNA Standard 90.1−2001: Energy
Standard for Buildings Except Low−Rise Residential
Buildings
D.
ASHRAE Standard 52.2−1999: Method of Testing General
Ventilation Air−Cleaning Devices for Removal Efficiency by
Particle Size.
E.
ARI Standard 210/240−2003: Unitary Air Conditioning
Equipment (capacities from 0 to 65 kbtuh)
F.
ARI Standard 340/360−2000: Commercial & Industrial Air
Conditioning Equipment (capacities from 65 kbtuh to 250
kbtuh)
G.
ARI Standard 270−95: Sound Rating of Outdoor Unitary
Equipment
H.
ARI Standard 370−2001: Sound Rating of Large Outdoor
Refrigerating and Air Conditioning Equipment.
I.
NFPA−90A−2002: Standard for Installation of Air Conditioning
and Ventilation Systems > 25,000FT3
J.
UL 1995 & CAN/CSA−C22.2 No. 236−M95: Standard for
Heating and Cooling Equipment
K.
ANSI Z21.47−2000 & CSA−2.3a−M99: Standard for Gas Fired
Central Furnaces. (US & Canada)
L.
ISO 9002:1994 Quality Systems – Model for Quality
Assurance in Production, Installation, and Servicing.
M. CAN/CGA 2.17−M91: Gas Fired Appliances for Use at High
altitudes. (Canada only)
P.
B.
NAECA: US National Appliance Energy Conservation Act of
1988. (US Only)
Design Requirements:
Unit construction shall be in compliance with the
following standards:
a. UL 1995 & CAN/CSA−C22.2 No. 236−M95:
Standard for Heating and Cooling Equipment
b. ANSI Z21.47−2000 & CSA−2.3a−M99: Standard for
Gas Fired Central Furnaces. (US & Canada)
c. CAN/CGA 2.17−M91: Gas Fired Appliances for Use
at High altitudes. (Canada only)
d. CSA C22.2 No. 3−M91: Electrical Features of Fuel
Burning Equipment (Canada only).
e. ANSI/ASHRAE/IESNA
Standard
90.1−2001:
Energy Standard for Buildings Except Low−Rise
Residential Buildings
Performance Requirements:
1. ARI Rated Net Cooling Efficiency shall meet or exceed
ASHRAE Standard 90.1−2001 at a rated air flow not less
than 350 CFM/ton.
2. Rated Heating Thermal Efficiency shall meet or exceed
ASHRAE Standard 90.1−2001.
1.4 SUBMITTALS
A. Product Data
1. Model Number
2. ARI Gross and Net Cooling Capacity
3. ARI Full and Part Load Cooling Efficiency
4. Gross Cooling Capacity at design conditions
5. Gross Sensible Cooling Capacity at design conditions
6. Leaving dry and wet bulb air temperature for cooling
7. Heating Capacity Input (Low & High Stage)
8. Heating Thermal Efficiency
9. Gas Type
10. Gas Supply Pressure
11. Gas Supply Fitting Connection Size
12. Supply Fan Nominal Horsepower
13. Supply Air Flow
14. External Static Pressure
15. Supply Air Filter Type
16. Supply Air Filter Size
17. Equipment Sound Rating
18. Condensate Drain Fitting Size
19. Shipping Weight
20. Net Installed Unit weight
21. Unit Voltage
22. Maximum Over Current Protection
23. Minimum Circuit Ampacity
24. Refrigerant Type
25. Factory Installed Options List
26. Field Accessory List
27. Equipment Feature List
B.
Shop Drawings
1. Plan View with dimensions
2. Front View with dimensions
3. End View with dimensions
4. Back View with dimensions
5. Curb detail with dimensions
C.
Quality Assurance/Control
1. ARI Directory Listing (for units = 248kbtuh)
2. UL, ETL or CSA Listing
3. ISO 9002 Registration
D.
Closeout Submittals
1. Equipment inspection report.
2. Equipment operation test report.
3. Operation and Maintenance manuals.
4. Warranty Cards.
CAN/CSA C22.2 No. 0−M91: General Requirements –
Canadian Electrical Code Part II. (Canada only)
O. CSA C22.2 No. 3−M91: Electrical Features of Fuel Burning
Equipment (Canada only).
SYSTEM DESCRIPTION
1.
Unitary Outdoor Packaged Rooftop Unit with gas fired
heating systems and direct expansion, air to air
mechanical electric cooling.
A.
N.
A.
Section Includes:
South Coast Air Quality Management District Rule 1111: NOx
Emissions for Fan Type Central Furnaces. (California Only)
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 35
GUIDE SPECIFICATIONS
1.5
A.
B.
C.
1.6
A.
B.
C.
1.7
QUALITY ASSURANCE
C.
Qualifications
1. Manufacturer’s factory shall be ISO 9002:1994
registered.
2. Installing contractors shall be manufacturer trained.
3. Manufacturer shall have parts and service available
throughout the U.S.A. and Canada.
Regulatory Requirements
1. Local Energy and Mechanical Codes.
2. NAECA: US National Appliance Energy Conservation
Act of 1988. (US Only)
3. EPACT: US Energy Policy Act of 1992. (US Only)
4. South Coast Air Quality Management District Rule 1111:
NOx Emissions for Fan Type Central Furnaces
(California only).
A.
Extra Materials:
1. One set of supply air filters shall be provided to the
owner if required by the owner.
B.
Replacement parts:
1. A list of common replacement parts shall be provided to
the owner if required by the owner.
C.
Maintenance Service
1. Air filters shall be changed every three months
2. Gas heat exchanger shall be serviced annually before
the heating season.
3. Evaporator and condenser coils shall be cleaned
annually before the cooling season.
4. Refrigeration system operations shall be checked
annually for proper operation.
5. Supply fan belts shall be inspected bi−annually for
proper tension and signs of wear.
PART 2 PRODUCTS
Packing, Shipping, Handling, and Unloading
1. Units shall be shipped, handled, and unloaded
according to manufacturer’s instructions.
2.1
MANUFACTURERS
A.
Lennox L Series Units
Acceptance at Site
1. For Owner provided product, Contractor shall be
responsible for acceptance of equipment at site.
2.2
EQUIPMENT
A.
Packaged Gas Heat, Electric Cool Rooftop Unit:
1. Direct expansion, air to air mechanical electric cooling
and induced draft gas fired heating system complete
with microprocessor based electronic controls that are
DDC capable. Unit airflow shall be convertible for
downward (vertical) or horizontal airflow. All factory
installed wiring, piping, controls, and options shall be
provided within the unit enclosure.
2.3
COMPONENTS
A.
Cabinet
1. All exterior panels shall be constructed of G90
galvanized steel with a 0.20 – 0.30 mils urethane primer
and 0.70 − 0.80 mils polyester coat on the top side and a
0.15 – 0.25 mils urethane primer and 0.20 to 0.30 mils.
polyester coat on the back side. Coating shall be
resistant to 1000 hours of salt spray per ASTM B−117;
500 hours of humidity exposure per ASTM D2247; and
168 hours of heat resistance per ASTM D3454. Coating
shall be impact resistant per ASTM D2794; Abrasion
resistant per ASTM D4060; and Solvent resistant per
NCCA No. II−18. Coating shall have a H minimum pencil
hardness per ASTM D3363. Coating shall have a 3T no
tape pick off Flexibility per NCCAII−19. Coating shall
have a no tape pick off" cross hatch adhesion
resistance per ASTM D3359.
2. All interior panels shall be constructed of G90
galvanized steel.
3. Cabinet panels where conditioned air is handled shall
be fully insulated with a minimum of ½" (1.3 cm) thick,
1.5 lb/ft3 density, non−hygroscopic fiberglass insulation
with a minimum R" value of 1.9°F −FT2−h/BTU.
Insulation in the gas heat section shall be foil face.
4. Cabinet base shall be one piece on units less than or
equal to 12.5 Tons to prevent water entry into building.
5. Cabinet top panel shall be one piece on units less than
or equal to 12.5 Tons
6. Cabinet top panel edge shall be broken 30° away from
cabinet to prevent water entry into cabinet.
Storage and Protection
1. Contractor shall be responsible for storage and
protection of equipment from damage until it is installed.
2. Factory shipping covers shall remain in place until
installation.
WARRANTY
A.
Gas heat exchangers
1. Aluminized steel type shall have a limited warranty for
ten years.
2. Stainless steel type shall have a limited warranty for
fifteen years.
B.
Compressors
1. Shall have a limited warranty for five years.
C.
Microprocessor based unit controller
1. Shall have a limited warranty for three years.
D.
All other parts
1. Shall have a limited warranty for one year.
1.8
1.11 MAINTENANCE
Certifications
1. ARI Standard 210/240−2003: Unitary Air Conditioning
Equipment (capacities from 0 to 65 kbtuh)
2. ARI Standard 340/360−2000: Commercial & Industrial
Air Conditioning Equipment (capacities from 65 kbtuh to
250 kbtuh)
3. ISO 9002:1994 Quality Systems – Model for Quality
Assurance in Production, Installation, and Servicing.
DELIVERY, STORAGE AND HANDLING
Commissioning
1. Manufacturer trained contractor shall statically and
dynamically test the operation of the rooftop unit to verify
its conformance to design criteria if required by the
engineer.
SYSTEM START
COMMISSIONING
UP,
OWNERS
INSTRUCTIONS,
A.
System Start Up
1. The rooftop unit shall be started up per manufacturer’s
instructions.
B.
Owner’s Instructions
1. Manufacturer representative shall instruct owner’s
representative on start up and operation of the
equipment if required by the owner.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 36
GUIDE SPECIFICATIONS
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
Cabinet top panel shall be water tight to interior
compartment.
Cabinet base shall be insulated a minimum of ½" (1.3
cm) thick, 1.5 lb/ft3 density, non−hygroscopic fiberglass
insulation with a minimum R" value of 1.9°F
−FT2−h/BTU.
Openings shall be provided for both bottom and side
electrical connections.
Openings shall be provided for both bottom and side
gas supply connections on units 7.5 – 30 tons.
Bottom utility entry opening shall have 7/8" (2.2 cm)
minimum raised edge to prevent water entry into
building.
Evaporator coil condensate drain pan shall be sloped
¼" per foot and constructed of corrosion resistant
material.
Drain pan coupling shall be accessible without the
removal of panels.
Service access doors shall have corrosion resistant
hinges and factory installed, re−sealing handles that
provide tool−less access to the compressor, controls
and filter sections of the unit. Access doors shall have a
full perimeter seal around them to prevent air leakage or
water entry.
Service access doors shall have corrosion resistant
hinges and factory installed, re−sealing handles that
provide tool−less access to the heat and blower
sections of 7.5 –30 ton units. Access doors shall have a
full perimeter seal around them to prevent air leakage or
water entry.
Full perimeter base rails shall be provided and
constructed with a minimum of 14ga, G90 galvanized
steel.
Fork lift slots shall be available on three sides of the unit
and shall not be positioned directly below the
condenser coil
Rigging holes shall be provided on all four corners of the
base rail of the unit.
Supply and return air base openings shall have a 1"
(2.54 cm) minimum raised edge to prevent water entry
into the duct work.
Horizontal supply and return air openings shall have a
1" (2.54 cm) minimum raised edge for duct connections.
B.
Wiring
1. Shall be color coded and continuously marked to
identify point to point component connections.
2. Shall not touch any hot−gas refrigerant lines
3. Shall not touch any sharp metal edges.
C.
Cooling System
1. Shall be capable of operating from 0 ºF (−18 ºC) to 125
ºF (52 ºC) without the installation of additional controls.
2. Shall have one independent compressor circuit on units
3 through 6 nominal tons.
3. Shall have two independent compressor circuits on
units 7.5 through 12 nominal tons.
4. Shall have three independent compressor circuits on
units 13, 15 and 30 nominal tons.
5. Shall have four independent compressor circuits on
17.5, 20 and 25 nominal ton units.
6. Each compressor circuit shall have a self sealing,
discharge line access port for reading refrigerant
pressures.
7. Each compressor circuit shall have a self sealing
suction line access port for reading refrigerant
pressures.
8. Each compressor circuit shall have a self sealing liquid
line access port for reading refrigerant pressures.
9. Refrigerant access ports shall be isolated from the
condenser fan air stream.
10. Each compressor circuit shall have an automatic reset,
high pressure switch to protect the compressor from
extreme refrigerant pressures
11. Each compressor circuit shall have an automatic reset
low pressure switch to protect the compressor from the
loss of refrigerant charge.
12. Each compressor circuit shall have a liquid line
filter−drier to protect the compressor and thermostatic
expansion valve from moisture and dirt.
13. Each compressor circuit shall be leak tested to 0.3
oz/year for circuits with = 10lbs of refrigerant or 0.50
oz/year for circuits with >10lbs of refrigerant at a
minimum of 150 psig (1034 kPa).
14. Each compressor circuit shall have a full R−22
refrigerant charge.
15. Copper tubing shall not touch sharp metal surfaces.
16. The compressor circuits on the 5, 15, 20, 21, and 30 ton
high efficiency models and 10 ton standard efficiency
models shall have available as a factory option a full
R−410A refrigerant charge.
17. Each compressor circuit shall have available as a
factory installed option, discharge and liquid line service
valves for isolating a compressor circuit’s refrigerant in
the outdoor coil. This option shall not be available on 13
–25 ton units with enhanced dehumidification system
(Humiditrol).
D.
Evaporator Coils
1. Shall be constructed with enhanced aluminum fins
mechanically bonded to internally grooved, copper
tubes.
2. Shall have balanced port thermal expansion valves to
provide optimal performance over the application
range.
3. Shall have freeze protection on each compressor
circuit.
4. Shall be pressure and leak tested to 500 psig (3447
kPa).
5. Shall not exceed 15 fins per inch so they can be easily
cleaned
6. Each compressor circuit on the coil shall be divided
across the face of the coil and be active through the full
depth of the coil to ensure optimal latent performance.
7. A four layer, epoxy−modified, phenolic dip coating
(Technicoat 10−1) shall be available as a factory option
for enhanced corrosion protection.
E.
Condenser coils
1. Shall be constructed with enhanced aluminum fins
mechanically bonded to copper tubes and be pressure
leak tested to 500 psig (3477 kPa).
2. Slab construction and a maximum fin per inch count of
20 shall be used for cleanability on units above 6 tons.
3. Formed coils shall allow separation and not exceed 20
fins per inch for cleanability on units 6 tons and below.
4. A four layer, epoxy−modified phenolic dip coating
(Technicoat 10−1) shall be available as an option for
enhanced corrosion protection.
F.
Compressors
1. Shall be hermetic, scroll type with sweat connections
for the suction and discharge lines.
2. Shall be resiliently mounted
3. Shall have thermal overload protection for all windings
with automatic reset.
4. Shall have crankcase heaters.
5. Shall have a voltage application range of + 10% of unit
nameplate voltage.
6. Shall be isolated from the condenser fan air stream to
allow system operation check without disrupting air
flow.
7. Shall be mounted off the base on units 13−30 tons to
reduce sound transmission through the base.
8. Shall be refrigerant cooled.
9. Shall have reverse rotation protection
G.
Cooling Controls
1. Shall support up to two stages of cooling from a
thermostat or an external DDC controller without the
need for any additional controls.
2. Shall support up to three stages of cooling when used
with a relay and a three stage thermostat or DDC
controller.
3. Shall support up to four stages of cooling when used
with Lennox’ L Connection Network Building
Automation System.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 37
GUIDE SPECIFICATIONS
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
Shall allow a blower on delay of up to 60 seconds after a
cooling demand is received. The default value is zero.
Shall allow a blower off delay of up to 240 seconds after
a cooling demand has ended. The default value is zero.
On three phase units, shall have a minimum
compressor on time of 240 seconds that can be
adjusted between 60 and 510 seconds.
On single phase units, shall have a minimum
compressor off time of 300 seconds that can be
adjusted between 60 and 510 seconds.
Shall have a default maximum high pressure switch trip
occurrence during a cooling or dehumidification cycle of
3. This trip occurrence limit shall be adjustable between
1 and 8 occurrences. If this maximum limit is reached,
the compressor shall be locked out and the digital
output for service shall be activated.
Shall have a default maximum low pressure switch trip
occurrence during a cooling or dehumidification cycle of
3. This trip occurrence limit shall be adjustable between
1 and 8 occurrences. If this maximum limit is reached,
the compressor shall be locked out and the digital
output for service shall be activated.
Shall have a low pressure trip read delay of 5 minutes if
the compressor off time has been less than 4 hours and
the outdoor temperature is less than 70°F (21°C). This
delay shall be adjustable from 0 to 34 minutes. The
temperature set point shall be adjustable from 10°F
(−12°C) to 100°F (38°C). The compressor off time shall
be adjustable from 1 to 6 hours.
Shall have a low pressure trip read delay of 15 minutes if
the compressor off time has been 4 hours or greater and
the outdoor temperature is less than 70°F (21°C). This
delay shall be adjustable from 0 to 34 minutes. The
temperature set point shall be adjustable from 10°F
(−12°C) to 100°F (38°C). The compressor off time shall
be adjustable from 1 to 6 hours.
Shall have a low pressure trip read delay of 2 minutes if
the compressor off time has been less than 4 hours and
the outdoor temperature is 70°F (21°C) or greater. This
delay shall be adjustable from 0 to 34 minutes. The
temperature set point shall be adjustable from 10°F
(−12°C) to 100°F (38°C). The compressor off time shall
be adjustable from 1 to 6 hours.
Shall have a low pressure trip read delay of 8 minutes if
the compressor off time has been 4 hours or greater and
the outdoor temperature is 70°F (21°C) or greater. This
delay shall be adjustable from 0 to 34 minutes. The
temperature set point shall be adjustable from 10°F
(−12°C) to 100°F (38°C). The compressor off time shall
be adjustable from 1 to 6 hours.
Shall record an error in non−volatile memory with each
pressure switch trip occurrence (either high or low) and
identify the compressor circuit.
Shall have a low outdoor air temperature compressor
lock out set point of 0°F (−18°C) for each compressor
circuit. This low outdoor temperature limit set point shall
be individually adjustable for each compressor circuit
from 80°F (−27°C) to −30°F (−34°C).
Shall have a maximum allowable evaporator freezestat
trip occurrence of 3 during a cooling demand and this
limit shall be adjustable from 1 to 4 occurrences. The
control shall shut off the compressor each time a
freezestat trip occurs and record an error code in
non−volatile memory. If the maximum limit is reached,
the compressor shall be locked out and the digital
output for service shall be activated.
On units with multiple condenser fans, shall have a 6
second time delay between condenser fan shut off and
re−start to prevent reverse rotation of the fan. This time
delay shall be adjustable between 0 and 16 seconds.
On units with 4 condenser fans, shall have a first stage
low outdoor temperature set point of 55°F (13°C) that
shall reduce the air flow through the condenser by
turning off some of the fans. This set point shall be
adjustable between 60°F (16°C) and 10°F (−12°C).
On units with 6 condenser fans, shall have a second
stage low outdoor temperature set point of 40°F (4°C)
that shall reduce the air flow through the condenser by
turning off all the fans. This set point shall be adjustable
between 60°F (16°C) and 10°F (−12°C).
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 38
20. On units with 6 condenser fans, shall have a condenser
fan on delay of 2 seconds. This shall be adjustable
between 0 and 240 seconds.
H.
Gas Heating System
1. Shall be an induced draft, natural gas fired system with
direct spark ignition, electronic flame sensors, flame
roll−out switches, high heat limit switches, induced draft
failure switch, and capable of operating to an altitude of
4500 ft (1370 m) without a de−rate to the manifold
pressure.
2. Shall have the ability to be converted for use with
LPG/propane using a field installed accessory.
3. Complete service access shall be provided for controls,
burners and heat exchanger.
4. Low NOx emission (40 ng/Joule or less) inserts
compliant with California Emission requirements shall
be available as a factory installed option on 3−6 ton
units.
5. The gas piping system shall be completely tight and free
of leaks when pressurized to the maximum supply
pressure.
I.
Gas Valve
1. Shall be two stage, redundant type gas heat valve
2. Shall accept natural gas standard.
3. Shall accept LPG/ propane with a field installed
accessory.
J.
Heat exchanger
1. Shall be a tubular design constructed of aluminized
steel for applications with mixed air temperatures of 45
ºF (7.2 ºC) or above. For applications with mixed air
temperatures below 45 ºF (7.2 ºC), stainless steel
construction shall be provided as a factory installed
option.
K.
Gas Burners
1. Shall be inshot type gas burners constructed of
aluminized steel.
L.
Heating Controls
1. Shall support two stages of heating control from a
thermostat or DDC.
2. Shall turn the supply fan on 40 seconds after a heating
demand is received. This time delay shall be adjustable
from 8 to 60 seconds.
3. Shall turn the supply fan off 120 seconds after a heating
demand has ended. This time delay shall be adjustable
from 80 to 300 seconds.
4. Shall have a delay time of 30 seconds between low and
high fire of a two−stage gas valve system. This time
delay shall be adjustable from 30 to 160 seconds.
5. Shall have a heat off delay of 100 seconds after the
thermostat heating demand has ended. This heat off
delay shall be adjustable from 30 to 300 seconds.
6. Shall turn off the heat and keep the supply air fan
running if an over heat limit occurs
7. Shall have an adjustable maximum over heat limit trip
count during a heating cycle of 3 and indicate reaching
this limit by activating the digital output for service. This
maximum count limit shall be adjustable from 1 to 15
counts.
8. Shall report an error with each occurrence of an over
heat limit trip and identify the limit that tripped. Error
code shall be stored in non−volatile memory.
9. Shall shut off gas heat if a flame roll−out occurs and
report an error identifying the roll−out switch
10. Shall have a maximum flame roll−out switch trip count
during a heating cycle of 3 and indicate reaching this
limit by activating the digital output for service. This
maximum count limit shall be adjustable from 1 to 6
counts.
GUIDE SPECIFICATIONS
M.
N.
O.
P.
Q.
R.
S.
11. Shall turn off the heat if the induced air flow is too low
and report an error identifying the pressure switch.
12. Shall have a maximum induced air flow pressure switch
trip count during a heating cycle of 3 and indicate
reaching this limit by activating the digital output for
service. This maximum count limit shall be adjustable
from 1 to 6 counts.
13. Shall report an error if the gas valve is not energized two
minutes after a heating demand and identify the gas
valve
14. Shall have a maximum ignition failure count of 3 and
indicate reaching this limit by activating the digital
output for service. This maximum count limit shall be
adjustable from 1 to 6 counts.
15. Shall shut off the gas valve if a flame is not sensed. An
error shall be reported and stored in non−volatile
memory.
16. Shall have a delay between stages on the gas valve.
17. Shall shut the unit off if the gas valve is energized but
there is not demand for heat. An error shall be reported
and stored in non−volatile memory.
Supply Air Fan Motor and Drives
1. Shall have permanently lubricated ball bearings for belt
drive motors and permanently lubricated sleeve
bearings for direct drive motors.
2. Motors shall have thermal overload protection with
automatic reset.
3. Belt drive blowers shall have adjustable sheaves for
blower speed adjustment.
4. Low and high static fan motors and drives shall be
available as a factory installed option.
Supply Air Fan
1. Shall be double inlet type constructed of G90
galvanized steel with forward curved blades.
2. Shall be statically and dynamically balanced.
3. Shall slide out or provide accessibility from two adjacent
sides of the unit for servicing and belt tension
adjustment.
Supply Air Fan Control
1. Shall have continuous or automatic control for occupied
periods.
2. Shall have adjustable on/off delay for both cooling and
heating operation
Supply Air Filters
1. Unit shall be furnished with standard, disposable 2 inch
(51 mm) pleated, MERV 7 (Minimum Efficiency
Reporting Value based on ASHRAE standard 52.2)
filters.
2. Disposable, 2 inch (51 mm) pleated, MERV 11
(Minimum Efficiency Reporting Value based on
ASHRAE standard 52.2) filters shall be available as a
factory installed option.
3. Permanent, 2 inch poly metal frame filters with
replaceable media shall be available as a factory
installed option or field installed accessory.
4. Unit Controls shall support the addition of an optional
dirty filter switch and report an error when it is tripped.
Condenser Fan Motor
1. Shall be direct drive type with permanently lubricated
ball bearings.
2. Shall have thermal overload protection with automatic
reset and be water tight.
3. Motor mount shall be isolated from the fan safety guard.
Condenser Fans
1. Shall be propeller type constructed of corrosion
resistant material and discharge vertically with a finger
safety guard.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
Shall have yellow LEDs to indicate a thermostat
demand mode.
Shall have a push button to reset the board. Push button
shall also allow user to select pre−programmed
functions or view sensor input values or diagnostic fault
codes or view the firmware version.
Shall have a yellow LED to indicate data transmission
along the network.
Shall have a four position dip switch to select the
operating mode of the unit.
Shall have a test mode to allow quick operation checks
with shorter delays for mode changes.
Shall have a four position dip switch to set unit type and
voltage phase.
Shall have a five position dip switch to set unit network
address.
Shall have RS−485 communication port for connection
with a PC to use the optional interface software.
Shall have a 3 wire network bus connection terminal.
Shall report and error if a power failure occurs on the
main control board or any of the daughter control
boards. The digital output for service shall also be
activated.
Shall report an error if a communication failure occurs
on the main control board or any of the daughter control
boards. The digital output for service shall also be
activated.
Shall report an error if the outdoor air sensor fails and
shall default control operation to the high outdoor air
limits.
Shall allow for zone sensor calibration.
Thermostat Operation
a. Shall be 2 stage heat/2 stage cool thermostat or
DDC capable
b. Shall be 2 stage heat/3 stage cool capable when
used with a relay and a 2 stage heat/3 stage cool
thermostat or DDC.
c. Shall be 2 stage heat/4 stage cool zone sensor
capable when used with Lennox’ L Connection
Network Building Automation System.
d. Shall have a night set back (unoccupied) mode
e. Shall have thermostat bounce delay of 3 seconds.
f. Shall have return air limit control for either heating
or cooling operation.
g. Shall have an automatic change over time delay of
5 minutes between heating and cooling operation
or visa versa. This time delay shall be adjustable
from 1 to 15 minutes.
Diagnostics
a. Shall have 81 diagnostic fault codes. See cooling,
heating, fan and unit control sections for detailed
error codes.
b. Shall store up to 80 of the most recent diagnostic
fault codes in non−volatile memory
Microprocessor Based Unit Controller
1. Integrated DDC type, solid state, microprocessor
based control board shall be provided to control all
operations of the unit.
2. Shall have a green blinking LED to indicate normal
operation.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 39
GUIDE SPECIFICATIONS
18. Shall have 32 Digital Inputs for the following:
a. Occupied mode
b. Low cool demand
c. High cool demand
d. Low heat demand
e. High heat demand
f. Supply fan demand
g. Smoke detector demand
h. Phase monitor or loss of phase switch
i.
Dirty filter indicator
j.
Supply air proving indicator
k. Primary heat limit 1
l.
Primary heat limit 2
m. Secondary heat limit 1
n. Secondary heat limit 2
o. Flame roll out switch 1
p. Flame roll out switch 2
q. Induced draft motor switch 1
r. Induced draft motor switch 2
s. Gas valve sense switch 1
t. Gas valve sense switch 2
u. Low pressure switch 1
v. Low pressure switch 2
w. Low pressure switch 3
x. Low pressure switch 4
y. High pressure switch 1
z. High pressure switch 2
aa. High pressure switch 3
ab. High pressure switch 4
ac. Freeze protection switch 1
ad. Freeze protection switch 2
ae. Freeze protection switch 3
af. Freeze protection switch 4
19. Shall have 6 Analog Inputs for the following:
a. Return air temperature sensor
b. Supply air temperature sensor
c. Outdoor air temperature sensor
d. Optional L Connection Network Zone Temperature
Sensor
e. Optional relative humidity sensor
f. Optional CO2 sensor
20. Shall have 18 Digital Outputs for the following:
a. Supply air fan motor
b. Compressor 1
c. Compressor 2
d. Compressor 3
e. Compressor 4
f. Condenser Fan 1
g. Condenser Fan 2
h. Condenser Fan 3
i.
Condenser Fan 4
j.
Condenser Fan 5
k. Condenser Fan 6
l.
Inducer fan motor 1
m. Inducer fan motor 2
n. Heat 1
o. Heat 2
p. Heat 3
q. Heat 4
r. Critical diagnostic fault code occurrence
21. Smoke Evacuation
a. Shall have selectable programs for smoke
evacuation using either a positive pressure;
negative pressure with supply fan and exhaust fan;
negative pressure with exhaust fan only; or purge
control sequence.
22. Display
a. Shall have three digit display for diagnostic codes
and sensor readings
b. Shall display return air, supply air and outdoor air
temperatures.
c. Shall display return air, supply air and outdoor air
temperature in °F or °C
d. Shall display RH if optional sensor installed.
e. Shall display CO2 ppm level if optional sensor
installed.
f. Shall display zone temperature if optional zone
sensor is installed.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 40
g.
23.
24.
25.
26.
Shall display damper position if optional
economizer or motorized outdoor air damper is
installed.
Fresh air temperature control
a. Shall have selectable program for warming cold
fresh ventilation air using first stage heat
b. Shall activate first stage of heating if supply air
temperature falls below the selected temperature
set point. The temperature set point range shall be
from 40°F (4°C) to 70°F (21°C).
c. The temperature at which first stage heating is
turned off shall be 20°F (11°C) above the set point.
This deadband shall be adjustable from 10°F
(5.5°C) to 20°F (11°C).
d. The minimum cycle time for this heating operation
shall be 8 minutes. This run time shall be
adjustable from 2 to 30 minutes.
Natural or Propane Gas Heat Reheat Control
a. A selectable program to simultaneously allow first
stage cooling to operate from either a dehumidistat
or humidity sensor and heating to operate from a
thermostat or DDC shall be available. The relative
humidity setpoint associated with this operation
shall have a default value of 60%. This set point
shall be adjustable from 0 – 100%.
Loss of Power Protection (1 ph units only)
a. Upon 2 consecutive power interrupts occur, the
unit controller shall keep the compressors off for a
period of 5 minutes to allow the refrigerant
pressures to equalize.
Loss of Phase or Brown Out Protection
a. A 24V digital input shall be available to initiate unit
shut down upon activation.
2.4
ACCESSORIES
A.
Dehumidification System (Humiditrol)
1. Shall be available as a factory installed option on 3, 4, 5,
7.5, 8.5, 10, 13, 15, 17.5 and 20 ton high efficiency R−22
models and 6, 12 and 25 ton standard efficiency R−22
models.
2. Shall be capable of activating the cooling system along
with the hot−gas reheat coil when the sensed humidity
level exceeds the desired set point.
3. Shall be capable of simultaneously operating both the
non hot−gas reheat compressor circuits and hot−gas
reheat compressor circuits of multiple compressor units
when both the humidity level and the first stage cooling
temperature level exceed their set points.
4. Shall be capable of prioritizing a cooling demand over a
dehumidification demand and shut off the hot−gas
reheat coil circuit(s) to meet the temperature
requirements. Shall be able of turning the hot−gas
reheat coil back on if the dehumidification demand still
exists after the cooling demand has been met.
5. Shall consist of a reheat coil, three−way solenoid valve,
a check valve and associated copper piping.
6. Reheat coil shall be constructed with enhanced
aluminum fins mechanically bonded to copper tubes.
Fin count shall not exceed 14 fins per inch.
7. Reheat coil shall be located on the leaving air side of the
evaporator coil.
8. Reheat coil shall cover 40% of evaporator coil face area
on 3−6 ton units; shall cover 67% of evaporator coil face
area of compressor circuit #1 on 7.5 –12.5 ton units;
shall cover 50% of evaporator coil face area of
compressor circuits 1 and 2 on 13 and 15 ton units and
67% of evaporator coil face area of compressor circuits
1 and 2 on 17.5, 20 and 25 ton units.
9. Three way solenoid valve shall be non−modulating type
and normally closed for the reheat coil.
10. Check valve shall be provided to prevent reverse flow of
refrigerant during cooling operation.
GUIDE SPECIFICATIONS
B.
Economizer
1. Shall be available for factory or field installation in the
unit with or without barometric or power exhaust relief.
2. Shall have a microprocessor based control board that is
attached to the main unit control board via a direct pin
connection to the main control board. This board shall
be located in the main control compartment and not the
economizer section of the unit.
3. Construction
a. Shall be fully modulating (0−100%) complete with
recirculating air dampers, low leakage outside air
dampers and controls.
b. Damper motor shall be direct coupled, gear driven,
24 volt, fully modulating (0−100%) design.
c. Outdoor air hood with filters shall be provided and
constructed of G90 galvanized steel with a 0.20 –
0.30 mils urethane primer and 0.70 − 0.80 mils
polyester coat on the top side and a 0.15 – 0.25
mils urethane primer and 0.20 to 0.30 mils.
polyester coat on the back side. Coating shall be
resistant to 1000 hours of salt spray per ASTM
B−117; 500 hours of humidity exposure per ASTM
D2247; and 168 hours of heat resistance per
ASTM D3454. Coating shall be impact resistant
per ASTM D2794; Abrasion resistant per ASTM
D4060; and Solvent resistant per NCCA No. II−18.
Coating shall have a H minimum pencil hardness
per ASTM D3363. Coating shall have a 3T no tape
pick off Flexibility per NCCAII−19. Coating shall
have a no tape pick off" cross hatch adhesion
resistance per ASTM D3359.
4. Free Cooling Control
a. Shall have sensible, global, single or dual enthalpy
economizer control
b. Shall have a maximum open damper position for
free cooling of 100%. This maximum position shall
be adjustable from 0 to 100%.
c. Shall have the ability to lock out free cooling if the
outdoor temperature falls below a set point. The set
point range shall be from 30°F (−1°C) to 60°F
(16°C).
d. Control shall allow compressors to cycle for
additional cooling as needed.
e. Control shall allow compressors to be delayed
from 0 to 136 minutes if a second stage cooling
demand is received after a night set back period
and outdoor air is suitable for cooling.
f. Shall control the supply air temperature to 55°F
(13°C) by modulating the dampers. This set point
shall be adjustable from 45°F (7°C) to 65°F (18°C).
5. Ventilation Control
a. Shall have the ability to manually set the minimum
damper position via a potentiometer on the
economizer control board.
b. Dampers shall be kept closed for the first 60
minutes of occupied operation after an unoccupied
period if there is a heating demand. This warm up
time delay shall be adjustable from 0 to 136
minutes.
6. Demand Control Ventilation (DCV)
a. Shall have selectable programs for demand
control ventilation when optional CO2 sensor is
installed using either a set point or proportional
control sequence.
b. Shall have a default maximum percent travel of
100% for DCV operation. This position shall be
adjustable from 0 to 100%.
c. Shall start to open the damper if the CO2 level is
502 ppm or greater. This set point shall be
adjustable from 0 to 2000 ppm.
d. Shall put the damper at 100% of travel if the CO2
level is 1004 ppm or greater. This set point shall be
adjustable from 0 to 2000 ppm.
e. Shall put the damper at minimum position if the
outdoor temperature is 10°F (−12°C) or lower. This
low temperature set point shall be adjustable from
−31°F (−35°C) to 132°F (56°C).
f.
C.
Shall start closing the damper if the outdoor
temperature is 40°F (4°C) or lower. This low
temperature set point shall be adjustable from
−31°F (−35°C) to 132°F (56°C).
g. Shall put the damper at minimum position if the
outdoor temperature is 105°F (41°C) or higher.
This high temperature set point shall be adjustable
from −31°F (−35°C) to 132°F (56°C).
h. Shall start closing the damper if the outdoor
temperature is 75°F (24°C) or higher. This high
temperature set point shall be adjustable from
−31°F (−35°C) to 132°F (56°C).
Motorized Outdoor Air Damper
1. Shall be available factory or field installed internal to the
unit to provide 0−25%, motorized operation of outdoor
air requirements.
2. Shall have a microprocessor based control board that is
attached to the main unit control board via a direct pin
connection to the main control board. This board shall
be located in the main control compartment and not the
outdoor section of the unit.
3. Construction
a. Shall be fully modulating (0−100%) complete with
low leakage outside air dampers and controls.
b. Damper motor shall be direct coupled, gear driven,
24 volt, fully modulating (0−100%) design.
c. Outdoor air hood with filters shall be provided and
constructed of G90 galvanized steel with a 0.20 –
0.30 mils urethane primer and 0.70 − 0.80 mils
polyester coat on the top side and a 0.15 – 0.25
mils urethane primer and 0.20 to 0.30 mils.
polyester coat on the back side. Coating shall be
resistant to 1000 hours of salt spray per ASTM
B−117; 500 hours of humidity exposure per ASTM
D2247; and 168 hours of heat resistance per
ASTM D3454. Coating shall be impact resistant
per ASTM D2794; Abrasion resistant per ASTM
D4060; and Solvent resistant per NCCA No. II−18.
Coating shall have a H minimum pencil hardness
per ASTM D3363. Coating shall have a 3T no tape
pick off Flexibility per NCCAII−19. Coating shall
have a no tape pick off" cross hatch adhesion
resistance per ASTM D3359.
4. Ventilation Control
a. Shall have the ability to manually set the opening
damper position via a potentiometer on the control
board.
5. Demand Control Ventilation (DCV)
a. Shall have selectable programs for demand
control ventilation when optional CO2 sensor is
installed using either a set point or proportional
control sequence.
b. Shall have a default maximum percent travel of
100% for DCV operation. This position shall be
adjustable from 0 to 100%.
c. Shall start to open the damper if the CO2 level is
502 ppm or greater. This set point shall be
adjustable from 0 to 2000 ppm.
d. Shall put the damper at 100% of travel if the CO2
level is 1004 ppm or greater. This set point shall be
adjustable from 0 to 2000 ppm.
e. Shall put the damper at minimum position if the
outdoor temperature is 10°F (−12°C) or lower. This
low temperature set point shall be adjustable from
−31°F (−35°C) to 132°F (56°C).
f. Shall start closing the damper if the outdoor
temperature is 40°F (4°C) or lower. This low
temperature set point shall be adjustable from
−31°F (−35°C) to 132°F (56°C).
g. Shall put the damper at minimum position if the
outdoor temperature is 105°F (41°C) or higher.
This high temperature set point shall be adjustable
from −31°F (−35°C) to 132°F (56°C).
h. Shall start closing the damper if the outdoor
temperature is 75°F (24°C) or higher. This high
temperature set point shall be adjustable from
−31°F (−35°C) to 132°F (56°C).
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 41
GUIDE SPECIFICATIONS
D.
E.
F.
G.
H.
I.
Manual Outdoor Air Damper
1. Shall be available factory or field installed internal to the
unit to provide fixed outdoor air requirements up to 25%.
2. Outdoor air hood with filters shall be provided and
constructed of G90 galvanized steel with a 0.20 – 0.30
mils urethane primer and 0.70 − 0.80 mils polyester coat
on the top side and a 0.15 – 0.25 mils urethane primer
and 0.20 to 0.30 mils. polyester coat on the back side.
Coating shall be resistant to 1000 hours of salt spray per
ASTM B−117; 500 hours of humidity exposure per
ASTM D2247; and 168 hours of heat resistance per
ASTM D3454. Coating shall be impact resistant per
ASTM D2794; Abrasion resistant per ASTM D4060;
and Solvent resistant per NCCA No. II−18. Coating shall
have a H minimum pencil hardness per ASTM D3363.
Coating shall have a 3T no tape pick off Flexibility per
NCCAII−19. Coating shall have a no tape pick off" cross
hatch adhesion resistance per ASTM D3359.
Gravity Exhaust Dampers (Barometric Relief Dampers)
1. Shall be available factory or field installed
2. Pressure operated dampers shall be available for
factory or field installation for either horizontal or
down−flow (vertical) applications.
3. Extruded aluminum dampers shall prevent blow–back
and outdoor air infiltration during off cycle.
Power Exhaust Fan
1. Shall be available factory (7.5 tons or larger) or field
installed for downflow (vertical) units with economizers.
2. Direct drive, propeller type fan shall exhaust air through
exhaust damper.
3. Motor shall be overload protected with permanently
lubricated ball bearings.
4. Exhaust fan control shall turn on when damper travel
reaches 50%. This set point shall be adjustable from 0
to 100%.
Outdoor Coil Guards
1. Shall be available for field installation.
2. Coil guards constructed of galvanized steel, ¾" bird
screen with enamel paint finished metal salt spray
tested for 1000 hours per ASTM B−117 shall be
available for protection from perimeter damage.
Outdoor Coil Hail Guards
1. Shall be available for field installation.
2. Hail guards constructed of galvanized steel, ¾" bird
screen with enamel paint finish metal salt spray tested
for 1000 hours per ASTM B−117 and angled downward
for protection from hail shall be available for field
installation.
Disconnects
1. A unit disconnect switch shall be available as a factory
option or field installed accessory.
J.
Circuit Breakers
1. A unit circuit breaker shall be available as a factory
option.
K.
Service Outlet
1. Dual 115 volt, 15 amp GFCI type service outlets shall be
factory installed. Wiring shall be either field provided (all
sizes) or unit powered (13 – 30 ton only).
L.
Service Valves
1. Service valves for isolating each compressor circuit’s
refrigerant in the outdoor coil to allow servicing of the
low side of the system shall be available as a factory
installed option on all units except 13− 30 ton units with
enhanced dehumidification option (Humiditrol).
M.
Dirty Filter Switch
1. An air pressure switch that indicates a dirty filter shall be
available either factory or field installed.
N.
Air Proving Switch
1. An air pressure switch that indicates no supply air shall
be available either factory or field installed.
L Series Packaged Gas/Electric − 7.5 to 12.5 Ton / Page 42
O.
Smoke Detectors
1. Supply and/or return air smoke detectors shall be
available either factory or field installed.
P.
LP/Propane Kit
1. A field installed fuel kit that allows the unit to be
converted from natural gas to propane shall be
available.
Q.
Roof Curb
1. A galvanized steel roof curb with wood nailer strip for
flashing shall mate to the bottom perimeter of the
equipment for either horizontal or downflow (vertical)
discharge applications.
2. For downflow applications, supports for attaching
supply and return air ductwork shall be provided.
3. Flashing shall be the responsibility of the roofing
contractor.
4. Frame shall be approved by U.S. National Roofing
Contractors Association.
5. Roof curb frames shall be available in either 14" (35.6
cm) or 24" (61 cm) heights.
2.5
SOURCE QUALITY CONTROL
A.
Tests, Inspections
1. Unit shall be run tested at the factory
B.
Verification of Performance
1. Factory run test record shall be available for review if
requested.
PART 3 EXECUTION
3.1
A.
INSTALLERS
Installers shall be manufacturer trained
3.2
A.
EXAMINATION
Site shall be examined and deemed acceptable to receive
the rooftop units prior to installation.
3.3
A.
INSTALLATION
Rooftop unit shall be installed per manufacturer’s
instructions
3.4
A.
CONSTRUCTION
Interface with Other Work
1. Unit shall be compatible with building automation
system described in Section 15900.
B.
Sequences of Operation
1. Unit shall have two stages of cooling
2. Unit shall have two stages of heating
3. Refrigeration system and supply fan shall operate when
a demand for cooling is received from the building
automation system.
4. Gas heating system and supply fan shall operate when
a demand for heating is received from the building
automation system.
5. Supply fan shall operate continuously when an
occupied demand is received from the building
automation system.
3.5
A.
FIELD QUALITY CONTROL
Site Tests, Inspection
1. Equipment Operation Test shall be conducted by
manufacturer trained contractor to verify proper
operation.
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Contact us at 1−800−4−LENNOX
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