Allied RGE Series User manual

506941-01 Page 1 of 16Issue 1148
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INSTALLATION INSTRUCTIONS
RGE Series - 3 Phase
Gas Heating/Electric Cooling Package Unit
The installation of the furnace, wiring, warm air ducts, venting, etc. must conform to the requirements of the National Fire
ProtectionAssociation; the National Fuel Gas Code,ANSI Z223.1 (latest edition) and the National Electrical Code,ANSI/
NFPANo. 70 (latest edition) in the United States; the Canadian Installation Codes CAN/CGA-B149.1 & .2 (latest edition)
and the Canadian Electrical Code Part 1, CSA 22.1 (latest edition) in Canada; and any state or provincial laws, local
ordinances, or local gas utility requirements. Local authorities having jurisdiction should be consulted before installation
is made. Such applicable regulations or requirements take precedence over the general instructions in this manual.
CAUTION
If this unit is to be installed in a mobile or manufactured
homeapplication,theductworkmustbesizedtoachieve
static pressures within the manufacturer’s guidelines.
All other installation guidelines must also be followed.
Failure to do so may result in equipment damage,
personal injury, and improper performance of the unit.
WARNING
Never use a flame to check for gas leaks. Explosion
causing injury or death may occur.
WARNING
Do not store combustible materials, including gasoline
andotherflammablevaporsandliquids,nearthefurnace,
vent pipe, or warm air ducts. Such actions could cause
property damage, personal injury, or death.
WARNING
Improper installation, adjustment, alteration, service, or maintenance can cause injury or property
damage. Refer to this manual. For assistance or additional information, consult a qualified installer,
service agency, or the gas supplier.
WARNING
Manufactured By
Allied Air Enterprises, Inc.
A Lennox International Company
215 Metropolitan Drive
West Columbia, SC 29170
TABLE OF CONTENTS
INSTALLATION..........................................................................2
START-UP ................................................................................8
OPERATION............................................................................10
Cooling System ..............................................................10
HeaƟng System..............................................................10
MAINTENANCE ......................................................................11
CONTROL SYSTEM DIAGNOSTICS ..........................................12
WIRING DIAGRAM.................................................................13
WARRANTY ............................................................................15
(P) 506941-01
*P506941-01*

Page 2 of 16 506941-01Issue 1148
INSTALLATION
TheseunitsarecertifiedbyE.T.L.TestingLaboratories,Inc.:
• For use as a forced air furnace with cooling unit.
• For outdoor installation only.
• For installation on combustible material.
• For use with natural gas or LP/propane gas.
(Conversion kit required for propane gas application.)
These units are not suitable for use with conventional
venting systems.
These instructions must be kept with this unit in a
conspicuous place.
These units are single package air conditioners with gas
heatdesignedfor outdoor installation on a rooftop or aslab.
The units are completely assembled. All piping, refrigerant
charge,andelectricalwiringarefactoryinstalledand tested.
Theunitsrequire only electricpower,gaspiping,condensate
drain, and duct connections, plus installation of the vent
cover at the point of installation.
Ifcomponentsareto be added to a unit to meet localcodes,
they are to be installed at the dealer’s and/or customer’s
expense.
Thesizeof unit fortheproposedinstallationshould be based
on heat loss/heat gain calculation made according to the
methodsofAirConditioningContractorsofAmerica(ACCA).
See Table 1 for filter information and application limitations.
Theseinstallationinstructions are intended as ageneral
guide only, for use by an experienced, qualified
contractor.
Exercise care when moving the unit. Do not remove any
packaging until the unit is near the place of installation.
Spreaders whose length exceed the largest dimension
across the unit must be used across the top of the unit.
Units may also be moved or lifted with a forklift while still in
the factory supplied packaging. The lengths of the forks
of the forklift must be a minimum of 42”.
Inspection
As soon as the unit is received, it should be inspected for
possible damage during transit. If damage is evident, the
extentofthedamageshouldbe noted on the carrier’sfreight
bill. Aseparate request for inspection by the carrier’s agent
should be made in writing.
Location
Use the following guidelines to select a suitable location
for these units.
1. Unit is designed for outdoor installation only. Unit must
be installed so all electrical components are protected
from water.
2. Condenser coils must have an unlimited supply of air.
3. For ground level installation, use a level prefabricated
pad or use a level concrete slab. Do not tie the slab to
the building foundation.
4. Maintainlevelwithina toleranceof1/4”maximum across
the entire length or width of the unit.
5. Do not locate the unit where the combustion air supply
will be exposed to any of the following substances:
• Permanent wave solutions
• Chlorinated waxes and cleaners
• Chlorine-based swimming pool chemicals
• Water softening chemicals
• Deicing salts or chemicals
• Carbon tetrachloride
• Halogen-type refrigerants
• Cleaning solvents (such as perchloroethylene)
• Printing inks, paint removers, varnishes, etc.
• Cements and glues
• Antistatic fabric softeners for clothes dryers
• Masonry acid washing materials
• Chlorinated laundry products
• Hydrochloric acid
In the State of Massachusetts:
This product must be installed by a licensed Plumber
or Gas Fitter. When flexible connectors are used, the
maximumlengthshallnotexceed36”. Whenlever-type
gas shutoffs are used, they shall be T-handle type.
WARNING
Before lifting a unit, make sure that the weight is
distributed equally on the cables so that it will lift evenly.
CAUTION

506941-01 Page 3 of 16Issue 1148
Clearances
All units require certain clearances for proper operation
and service.
• Refer to Figure 2 standard installation clearances
for servicing, and proper unit operation.
• Refer to Figure 3 for the clearances required for
combustible contstruction.
Do not permit overhanging structures or shrubs to
obstruct condenser air discharge outlet, combustion
air inlet, or vent outlet.
In the U.S.A., units may be installed on combustible floors
made from wood or classA, B, or C roof covering material.
In Canada, units may be installed on combustible floors.
Units must be installed outdoors.
Service Access
Access to all serviceable components is provided by four
(4) removable panels: blower compartment, evoporator
coil/filter compartment, burner compartment, and main
control box.
Combustion Discharge
The vent outlet must be installed in a location as to prevent
building degradation and must be consistent with the
NationalFuel Gas Code, Z223.1 or CAN/CGA-B149.1 &.2.
Roof Curb Installation
If a roof curb is used, follow the manufacturer’s Installation
Instructions and be sure that all required clearances are
observed (see Clearances section on this page).
This unit is shipped with four (4) corner brackets in place
on the underside of the unit (see Figure 1). All four (4)
brackets must be removed before unit is installed onto
roof curb assembly.
To avoid interference with roof curb remove the outer most
screw attaching the outdoor coil filler panel to the unit base,
and caulk the open hole.
The products of combustion are discharged through
a screened opening on the gas heat side panel. The
horizontalventsystemshall terminate at least 4’(ft.) below,
4’ (ft.) horizontally from, or 1’ (ft.) above any door, window,
or gravity air inlet into the building. The vent system shall
terminate at least 3’ (ft.) above any forced air inlet located
within 10’ (ft.).
The unit shall be installed in a manner such that snow
accumulation will NOT restrict the flow of flue products.
Figure 2
Minimum Installation Clearances
Inches (mm)
Corner Brackets
Figure 1
Coil Close
Off
Bracket Bracket
Bracket Bracket
Remove all four (4) corner brackets before installing on roof curb.
Return Supply
Figure 3
Minimum Clearances to Combustibles
Inches (mm)

Page 4 of 16 506941-01Issue 1148
NOTE: If a gas furnace that’s connected to a common
venting system is being removed when this package unit
is installed, then read and follow the instructions in the
“Removal of Unit from Common Venting System” section
that follows. Otherwise, you may skip this section.
Removal of Unit from Common Venting System
Whenanexistingfurnaceisremovedfromacommonventing
systemservingother appliances,theventingsystemis likely
to be too large to properly vent the remaining attached
appliances. The following test should be conducted with
eachappliancewhiletheotherappliancesconnectedtothe
common venting system are not in operation.
1. Seal any unused openings in the common venting
system.
2. Visually inspect the venting system for proper size and
horizontal pitch and determine there is no blockage or
restriction, leakage, corrosion, or other deficiencies
which could cause an unsafe condition.
3. Insofar as is practical, close all building doors and
windows between the space in which the appliances
remaining connected to the common venting system
are located and other spaces in the building. Turn on
clothes dryers and any appliance not connected to the
common venting system. Turn on exhaust fans, such
as range hoods and bathroom exhausts, so they will
operateatmaximum speed. Do not operate a summer
exhaust fan. Close fireplace dampers.
4. Following the lighting instructions, place the unit being
inspected in operation. Adjust the thermostat so the
appliance will operate continuously.
5. Test for spillage at the draft control relief opening after
5 minutes of main burner operation. Use the flame of
a match or candle.
6. Follow the preceding steps for each appliance
connected to the common venting system.
7. After it has been determined that each appliance
remaining connected to the common venting system
properly vents when tested as outlined above, return
doors, windows, exhaust fans, fireplace dampers,
and any other fuel burning appliance to their previous
condition of use.
8. Ifimproperventingisobservedduringany of the above
tests, the common venting system must be corrected.
See National Fuel Gas Code, ANSI Z223.1 (latest
edition)orCAN/CGAB149.1 & .2 CanadianInstallation
Codestocorrect improperoperationofcommonventing
system.
Minimumhorizontalclearanceof4’(ft.) from electric meters,
gas meters, regulator, and relief equipment is required.
In addition to the above requirements, consideration must
be given to prevent unwanted ice buildup from the vent
condensate. The vent should not be located on the side of
a building where the prevailing winter winds could trap the
moisture, causing it to freeze on the walls or on overhangs
(undereaves). Theventlocationshouldnotdischargeover
a sidewalk, patio, or other walkway where the condensate
could cause the surface to become slippery.
The products of combustion must not be allowed to
accumulate within a confined space and recirculate.
Vent Cover
Forshippingpurposes, theunitisshipped withtheventcover
packaged in the unit supply air compartment. Retrieve the
vent cover from the supply air compartment.
To attach the vent cover to the unit:
1. Locate the vent screen. It is packed in the plastic bag
that contains these Installation Instructions.
2. Remove the two screws that will be used to attach the
screen to the unit (see Figure 4).
3. Centerthescreenoverthehole and re-insert thescrews
removed in Step 2.
4. Remove the 4 screws that will be used to attach the
vent cover (see Figure 4). Install the vent cover using
these screws. A properly installed vent cover will not
extend above the top of the unit.
Installing the Vent Cover
Figure 4
Screen
Screen attachment screws
Vent Cover
Vent Cover
Attachment
Screws
(Plus 2 on
other side)

506941-01 Page 5 of 16Issue 1148
Condensate Drain
This package unit is equipped with a 3/4” (in.) FPT coupling
for condensate line connection. Plumbing must conform to
localcodes. Useasealingcompoundon male pipe threads.
The condensate drain line must be properly trapped
and routed to a suitable drain. See Figure 5 for proper
drain arrangement. The drain line must pitch to an open
drain or pump to prevent clogging of the line. Seal around the
drain connecƟon with suitable material to prevent air leakage
into the return air system.
Gas Piping
Proper sizing of a gas piping depends on the cubic feet per
hour of gas flow required, specific gravity of the gas, and
lengthof run. National Fuel Gas Code Z223.1 latestedition
should be followed in all cases unless superseded by local
codes or gas company requirements. In Canada, refer to
CAN/CGA B.149.1 & .2 (latest edition).
The heating value of the gas may differ with locality. The
value should be checked with the local gas utility. For
temperature rise of unit, see unit rating plate.
Ductwork
Ductwork should be designed and sized according to the
methods in Manual Q of the Air Conditioning Contractors
of America (ACCA).
A closed return duct system shall be used. This shall not
preclude use of economizers or outdoor fresh air intake. It
is recommended that supply and return duct connections
at the unit be made with flexible joints.
The supply and return air duct systems should be designed
fortheCFM and staticrequirementsofthe job. They should
not be sized by matching the dimensions of the duct
connections on the unit.
Filters
Filters are not supplied with the unit. Filters must always
be installed ahead of the evaporator coil and must be kept
clean or replaced. Dirty filters will reduce the airflow of the
unit. Filters should be sized in accordance with Table 1.
This unit is equipped with an internal filter clip which is
located in the indoor coil compartment attached to the side
of the unit drain pan.
Whenfasteningductworktothe side duct flangesonunit,
insert screws through duct flanges only. Do not insert
screws through the casing. Outdoor ductwork must be
insulated and waterproofed.
CAUTION
Typical Condensate Drain Connection
Figure 5
Table 1
Minimum Required Surface Area
for Disposable Filters
Cooling BTU/HR Filter Area
36,000 (3 Ton) 600 Square Inches
48,000 (4 Ton) 800 Square Inches
60,000 (5 Ton) 900 Square Inches
Unit Model Internal Filter Size
36 28” X 25”
48-60 30” X 30”

Page 6 of 16 506941-01Issue 1148
• The furnace and its individual manual shutoff valve
must be disconnected from the gas supply piping
system during any pressure testing of that system at
test pressures in excess of 1/2 PSIG (3.48 kPa).
• A1/8” N.P.T.pluggedtapping,accessible for test gauge
connections, must be installed immediately upstream
of the gas supply connection to the furnace.
Gas Connection
The gas supply line should be routed through the grommet
on the side of the unit.
Gas piping recommendations:
• Adrip leg and a ground joint union must be installed in
the gas piping. A ground joint union is recommended
by the manifold/valve.
• When required by local codes, a manual shutoff valve
may have to be installed outside of the unit.
• Usepipethreadsealingcompoundresistanttopropane
gas sparingly on male threads.
• The gas supply should be a separate line and installed
in accordance with all safety codes listed on page 1.
After the gas connections have been completed, open
themainshutoffvalve admitting normalgaspressureto
themains. Checkalljointsfor leaks with soapy solution
or other material suitable for the purpose.
Never use a flame to check for gas leaks. Explosion
causing injury or death may occur.
WARNING
Thefurnacemustbe isolated from the gas supply piping
system by closing the individual manual shutoff valve
during any pressure testing of gas supply piping system
at test pressures equal to or less than 1/2 psig or 14”
w.c. If the piping system is to be tested at pressures in
excess of 1/2 psig, the furnace and its individual shutoff
valve must be disconnected from the gas supply piping
system.
WARNING
Figure 6
To Unit Power Entry
Weatherproof
Disconnect Switch To
Power
Supply
NEC Class 1 Wiring
Thermostat
NEC Class 2 Wiring
To Low Voltage Entry
NOTE: All outdoor wiring must be weatherproof.
Vent Cover
Power Entry
Low Voltage Entry
Gas Entry
Typical Field Wiring

506941-01 Page 7 of 16Issue 1148
Thermostat
The room thermostat should be located on an inside
wall where it will not be subject to drafts, sun exposure,
or heat from electrical fixtures or appliances. Follow the
manufacturer’s instructions enclosed with thermostat for
generalinstallationprocedure. Color-codedinsulatedwires
(#18AWG)shouldbeused to connect thethermostat to the
unit. For thermostat wire runs up to 60 feet (18 m), use 18
gauge wire. For 60 to 90 feet (18 to 27 m) runs, use 16
gauge wire.
Four wires are required for cooling. The heat anticipator
setting is 0.75 amp.
Compressor
Units are shipped with compressor mountings factory-
adjusted and ready for operation.
LPG/Propane Units, Tanks, and Piping
Units are shipped equipped for natural gas, but can be
converted to LPG/propane in the field by an approved
licensed technician. If conversion is required, use the
approved conversion kit.
When converting a low NOxunit (designated by an L in
the model number) to propane, the NOxinserts must be
removed. After removing the burners, remove the screw
holding each insert and pull the insert from the combustion
chamber. Thescrewsmust be reinstalled inthevestpanel
after the inserts are removed.
AllLPG/propanegas equipment must conform to the safety
standards of the National Fire Protection Association.
Forsatisfactoryoperation,LPG/propanegaspressuremust
be a minimum of 11” w.c. at the unit under full load.
Completeinformationregardingtanksizingforvaporization,
recommendedregulatorsettings, and pipesizingisavailable
from most regulator manufacturers and LPG/propane gas
suppliers.
Check all connections for leaks when piping is completed,
using a soapy solution. Some soaps used for leak
detection are corrosive to certain metals. Carefully
rinse piping thoroughly after completing leak detection.
Electrical Wiring (See Figures 6 & 7)
All wiring should be done in accordance with the National
ElectricalCode,ANSI/NFPANo.70(latestedition);Canadian
Electrical Code Part 1, CSA C22.1 (latest edition); or local
codes where they prevail. Use wiring with a temperature
limitationof75°C minimum. Runthe208or230 volt, 60hertz
electric power supply through a fused disconnect switch to
thecontrolboxof the unitandconnectasshown in thewiring
diagram located on the inside of the control access panel.
Power supply to the unit must be N.E.C. Class 1, and must
complywith all applicable codes.Afused disconnect switch
should be field provided for the unit. The switch must be
separate from all other circuits. If any of the wire supplied
with the unit must be replaced, replacement wire must be
of the type shown on the wiring diagram. Electrical wiring
mustbe sized to carry minimum circuit ampacitymarked on
theunit. Use copper conductors only. Eachunit must be
wired with a separate branch circuit and be properly fused.
Do not loosen compressor mounting bolts.
CAUTION
Power Wiring
If 208 volt is supplied, transformer connecƟons must be made.
Figure 7
Line Voltage 208/230 Volts (- T Models)
460 Volts (- F Models)
FIELD-SUPPLIED
FUSED
DISCONNECT
CONTACTOR
GROUND
LUG
THREE
PHASE
POWER
SUPPLY
When connecting electrical power and control wiring
to the unit, waterproof type connectors must be used
so that water or moisture cannot be drawn into the unit
during normal operation.
CAUTION

Page 8 of 16 506941-01Issue 1148
START-UP
Pre-Start Check List
Complete the following checks before starting the unit:
1. Check the type of gas being supplied. Be sure it is the
same as listed on the unit nameplate.
2. Make sure that the vent cover has been properly
installed.
For Your Safety Read Before LighƟng
Post-Start Check List
After the entire control circuit has been energized and the
heating section is operating, make the following checks:
1. Check for gas leaks, using soapy solution, in the unit
piping as well as the supply piping.
2. Checkforcorrectmanifoldgaspressures(seeManifold
Gas Pressure Adjustment Regulator sections).
3. Check the supply gas pressure. It must be within the
limitsshownontheratingplate.Supply pressure should
bechecked with all gas appliances in the building at full
fire.At no time should the standby gas pressure exceed
13” w.c., nor the operation pressure drop below 5” w.c.
for natural gas units or 11” w.c. for propane gas. If gas
pressureisoutsidetheselimits,contact the gas supplier
for corrective action.
4. Adjusttemperature rise to be within therange specified
on the raƟng plate.
To Light Main Burners:
1. Turn off electrical power to unit.
2. Turn the thermostat to lowest setting.
3. Turnthegasvalveknobtothe “ON” position (see Figure
9).
4. Turn on electrical power to the unit.
5. Set the room thermostat to the desired temperature.
(If the thermostat “set” temperature is above room
temperature after the pre-purge time expires, main
burners will light.)
To Shut Down Main Burners:
1. Turn off electrical power to unit.
2. Turn the gas valve switch to the “OFF” position (see
Figure 9).
Gas Valve
Figure 9
Regulator
Adjustment
(Under Cap)
Gas Control Switch
Typical Wiring Connections
Figure 8
Furnaceisequippedwith a direct ignition control. Do not
attempt to manually light the burners.
CAUTION

506941-01 Page 9 of 16Issue 1148
x3600 x
=Cubic Feet Per RevoluƟonBTU/HR
INPUT # Seconds Per RevoluƟon
HeaƟng
Value
To check this pressure:
1. Turn off gas valve.
2. Removeplugonvalvemarked“OUTLETPRESSURE.”
3. Install a water manometer.
4. Turn on gas valve and initiate a call for heat. If manifold
pressure must be adjusted, remove cap from pressure
regulator and turn adjustment screw clockwise to
increase pressure or counterclockwise to reduce
pressure.
5. Aftercheckingpressure,turngasoff,removemanometer
fitting, and replace pipe plug and regulator cap.
6. Put furnace in operation and check plug for leaks using
soapy solution.
Burner and Burner Orifice Instructions
To check or change burners or burner orifices:
1. Close the main manual gas shutoff valve and turn
off all power to unit.
2. Remove the burner access panel.
3. Disconnect the union in the gas supply line upstream
of the gas valve and downstream of the manual shutoff
valve.
4. Label wires going to the gas valve, then disconnect the
wires.
5. To change orifices:
a. Remove 4 screws that fasten the manifold to the
burner box assembly and remove the manifold.
b. Remove the orifices, then install replacement
orifices.
c. To reassemble: Reverse above steps, making
sure orifices are inserted into the orifice holders on the
back end of the burners, and that burners are level and
centered on each burner opening in the vest panel.
6. To remove or service burners:
a. Label and disconnect the wires to the rollout switch
and disconnect the igniter and flame sensor leads at
the ignition control.
b. Remove the 4 screws that secure the burner box
assembly to the vest panel and remove the assembly
from the unit.
c. Remove the 6 screws that fasten the burner rack
andbottomshieldassembly to the burner box. Burners
are now accessible for removal.
d. To Reassemble: Reverse above steps.
Example: The heating value of the gas is 1053 BTU/cubic
foot. By actual measurement, it takes 38 seconds for the
hand on the 1-cubic foot dial to make a revolution with a
100,000 BTU/HR furnace running. The result is 99,750
BTU/HR, which is close to the 100,000 BTU/HR rating of
the furnace.
Manifold Gas Pressure Adjustment Regulator –
LPG/Propane Gas
LPG/propane units require a regulator, and a regulator on
the LPG/propane tank is also required.
For purpose of input adjustment, the minimum
permissible gas supplypressure (inlet sideof gas valve)
is 11” w.c. for LPG/propane.
If at any time ignition is slow and burner does not seem to
be operating correctly, check manifold pressure (outlet side
of the gas valve). It should be 10” to 10.5” w.c. pressure
for LPG/propane.
The furnace is designed to obtain rated input at 10” w.c.
manifold pressure for propane.
Manifold Gas PressureAdjustment Regulator – Natural
Gas
For purpose of input adjustment, the minimum permissible
gas supply pressure is 5” w.c. for natural gas.
Gas input must never exceed the input capacity shown on
the rating plate. The furnace is equipped for natural gas
rated inputs with manifold pressure of 3.5” w.c.
The manifold pressure can be measured by shutting off
the gas, removing the pipe plug in the downstream side
of the gas valve, and connecting a water manometer
or gauge. Under no circumstances should the final
manifold pressure vary more than 0.3” w.c. from the
above specified pressures. To adjust the regulator, turn
the adjusting screw on the regulator clockwise to increase
pressure and input or counterclockwise to decrease
pressure and input. See Figure 9 to assist in locating the
regulator on the gas valve.
Check the furnace rate by observing the gas meter, making
sure all other gas appliances are turned off. The test hand
on the meter should be timed for at least one revolution,
noting the number of seconds per revolution. The heating
value of the gas can be obtained from the local utility.

Page 10 of 16 506941-01Issue 1148
Continuous Blower
Withtheproper thermostatandsub-base,continuousblower
operation is possible by closing the R to G circuit.
Heating Sequence of Operation
The following sequence describes the operation of the gas
heat section.
1. A call for heat from the room thermostat starts the
combustion air blower and the circulating air blower.
Cooling System Performance
This equipment is a self contained, factory optimized
refrigerant system, and should require no adjustments
when properly installed. If however, unit performance is
questioned, perform the following checks.
Insure unit is installed per manufacturer’s instructions and
that line voltage and air flows are correct. Refer to Table 2
forpropersuperheat or subcoolingvalues. Checksuperheat
settings by measuring presure at the suction line service
port. For TXV systems, measure pressure at the liquid
serviceport. Takelinetemperaturewithin2 inches ofservice
portconnectionto its maintube. Ifunitsuperheat/subcooling
varies by more than table allowance, check internal seals,
service panels and duct work for air leaks, as well as
restrictions and blower speed settings. If unit performance
remains quetionable, remove charge, evacuate to 500
Microns,andweighinrefrigerantto name plate charge. It is
criticalthatthe exact chargeisre-installed. Failureto comply
will compromise system performance. If unit performance
is still questionable, check for refrigerant related problems
such as, blocked coil or circuits, malfunctioning metering
devices or other system components.
7. Afterreassemblyofallparts iscompleteandallwires are
reconnected, open the main manual gas shutoff valve;
check for and correct any gas leaks. Turn electrical
power on, initiate a call for heat, and check for proper
burner operation.
8. Install burner access panel.
Heat Anticipator
The heat anticipator setting is 0.75 amp. It is important
that the anticipator setpoint be correct. Too high of a setting
will result in longer heat cycles and a greater temperature
swing in the conditioned space. Reducing the value below
the correct setpoint will give shorter “ON” cycles and
may result in the lowering of the temperature within the
conditioned space.
OPERATION
Cooling System
The cooling system is a complete factory package utilizing
an air-cooled condenser and is factory-charged with HFC-
R-410A. The compressor is hermetically sealed and base
mounted with rubber-insulated hold-down bolts.
Cooling Sequence of Operation
When the thermostat calls for cooling, R is closed to G and
Y (see the wiring diagram found on page 13). This action
completes the low voltage control circuit, energizing the
compressor, condenser fan motor, and blower motor.
Unitcompressorshaveinternal protection. Intheeventthere
is an abnormal rise in the temperature of the compressor,
the protector will open and cause the compressor to stop.
Blower Delay – Cooling
In cooling mode, the circulating air blower operation is
delayed for five (5) seconds after the compressor starts.
The blower continues to operate for 60 seconds after the
compressor is de-energized. The feature is a function of
the blower motor itself and cannot be changed.
NOTE: There is no blower OFF delay when there is only
a call for G (fan only).
Suction Superheat
Table 2
* This letter will vary according to furnace series.
Outdoor
Unit Model
Suction Superheat
+/- 3° @ ARI
Conditions 82° OD
80° IDDB/67° IDWB
RGE13(*)24 21°
RGE13(*)30 19°
RGE13(*)36 17°
RGE13(*)42 20°
RGE13(*)48 15°
RGE13(*)60 15°

506941-01 Page 11 of 16Issue 1148
Filters
Filters are not supplied with the unit. Inspect once a month.
Replacedisposableor clean permanent type as necessary.
Do not replace permanent type with disposable.
Motors
Indoor and outdoor fan and vent motors are permanently
lubricated and require no maintenance.
Rollout Switch The switch is located on the left side of
burner box. In the event of a sustained main burner rollout,
the rollout switch shuts off the ignition control and closes
the main gas valve. To reset, push the button on top of the
switch.
Auxiliary Limit This control is located in the side of the
circulation air blower housing. The switch opens and shuts
offthe blower/ignition controlandclosesthe main gas valve
should the circulation blower fail to operate. This control
resets automatically.
High Altitude
The input rate shown on the rating plate is for elevations
up to 2000 feet. For elevations from 2001 to 4500 feet, the
inputrateisreducedby5%.Forelevations above 4501 feet,
refer to the National Fuel Gas Code Z223.1 (latest edition)
or the Canadian Installation Codes CAN/CGA-B149.1 &
B149.2 for further details.
Secure Owner’s Approval
Whenthesystemisfunctioning properly,securetheowner’s
approval. Show the owner the location of all disconnect
switches and the thermostat. Instruct the owner on how to
startandstop theunitandhow toadjusttemperaturesettings
within the limitations of the system.
MAINTENANCE
Periodic inspection and maintenance normally consists of
changing or cleaning the filters and cleaning the outdoor coil.
On occasion, other components of the furnace may also require
cleaning.
2. When the speed of the combustion air blower reaches
proper RPM, the pressure switch closes, initiating a
pre-purge period (30 seconds nominal).
3. When the pre-purge period has expired, the ignition
control energizes the main gas valve and spark
electrode for a period of 10 seconds.
4. Iftheflamesensor doesnotsensethata flamehasbeen
established in the 10-second interval, then the ignition
control will de-energize the gas valve, and begins a 30
second interpurge period, then initiates another trial for
ignition.
5. The ignition control is designed to repeat this “trial
for ignition” a total of three times. If, at the end of the
third trial, flame still has not been established, then the
ignition control will try to light again 1 hour later. The
1-hour retry is indefinite. The ignition control can be
reset by interrupting the unit power or the thermostat
circuit.
6. When the thermostat is saƟsfied, the combusƟon air blower
and gas valve are de-energized. The circulation air
blower will continue to run for a short period after the
furnace is shut down.
Blower OFF Delay – Heating
The circulating air blower “OFF” delay is 120 seconds after
shutting down the burners. This delay is not adjustable.
Safety Controls
The control circuit includes the following safety controls:
Limit Control This control is located inside the heating
compartment and is designed to open at abnormally high
circulating air temperatures. It resets automatically. The
limit control operates when a high temperature condition,
causedbyinadequate airflow, occurs. This closes the main
gas valve.
Pressure Switch If the combustion air blower should fail,
the pressure switch prevents the spark electrode and gas
valve from being energized.
Flame Sensor If the ignition control does not receive a
signalfromtheflame sensorindicatingthattheburnershave
establishedflame, the gas valve closes after the 10-second
trial for ignition period.
Shutoffall electrical powertotheunitbefore conducting
any maintenance procedures. Failure to do so could
cause personal injury.
WARNING

Page 12 of 16 506941-01Issue 1148
Outdoor Coil
Dirt and debris should not be allowed to accumulate on the
outdoorcoilsurfaceorotherpartsintheaircircuit. Cleaning
should be as often as necessary to keep coil clean. Use a
brush,vacuumcleanerattachment, or other suitablemeans.
If water is used to clean the coil, be sure the power to unit
is shut off prior to cleaning. Care should be used when
cleaning the coil so that the coil fins are not damaged.
Do not permit the hot condenser air discharge to be
obstructed by overhanging structures or shrubs.
Burners
To clean the burners, first remove them from the furnace as
explained in Burner Instructions on page 9. Vacuum and/
or brush as required.
Vent Outlet
Visually inspect vent outlet periodically to make sure that
there is no buildup of soot or dirt. If necessary, clean to
maintain adequate opening to discharge flue products.
Heat Exchanger
With proper combustion adjustment, the heat exchanger
of a gas-fired furnace will seldom need cleaning. Sooting
of a gas appliance is highly irregular and once cleaned,
the cause of the sooting must be determined. If the heat
exchanger should become sooted, it can be cleaned as
follows:
1. Remove the burner assembly as outlined in Burner
Instructions on page 9.
2. Remove the combustion blower.
3. Atthebottomoftheheatingsection,removethescrews
holdingthefluecollector box. Carefully remove the flue
collector box without ripping the adjacent insulation.
4. Using a wire brush on a flexible wand, brush out the
insideofeach heat exchanger from the burner inletand
flue outlet ends.
5. Runthewirebrushdownthe heat exchanger tubesfrom
the burner end.
6. Brush out the inside of the flue collector box.
7. Clean the combustion air blower wheel and housing.
Runthewirebrushdownthe flue extension at the outlet
of the vent housing.
8. After brushing is complete, blow all brushed areas with
air. Vacuum as needed.
9. Replace parts in the reverse order they were removed
in Steps 1 through 3.
10. When replacing the flue collector box, be careful so as
not to tear the adjoining insulation.
11. Assure that all joints on the vent side of the combustion
systemareairtight. Applya high temperature (+500°F)
sealing compound where needed.
CONTROL SYSTEM DIAGNOSTICS
Fault Codes
Table 3
LED Status Flashing Rate Fault
Description
Slow Flash
Fast Flash
2 Flash
3 Flash
4 Flash
5 Flash
Steady
One flash
per second Normal operaton:
No call for heat
Two flashes
per second Normal operation:
Call for heat
Two flashes
in second with
1-second pause
Internal failure:
Micro-controller
failure; self-check
Five flashes in
2.5 seconds with
1-second pause
Flame sensed
and gas valve
not energized
Four flashes in
2 seconds with
1-second pause
High limit or
rollout switch
open
Three flashes in
1.5 seconds with
1-second pause
Pressure switch
senses incorrect
pressure or auxiliary
limit is open, or gas
valve coil is open.
System lockout:
Failed to detect
or sustain flame
--

506941-01 Page 13 of 16Issue 1148
CONNECTION DIAGRAM SINGLE STAGE HEAT
230 V 3 PHASE
Figure 10

Page 14 of 16 506941-01Issue 1148
CONNECTION DIAGRAM SINGLE STAGE HEAT
460 V 3 PHASE
Figure 11

506941-01 Page 15 of 16Issue 1148
EQUIPMENT LIMITED WARRANTY
APPLIES IN U.S.A. AND CANADA ONLY
FAILURE TO MAINTAIN YOUR EQUIPMENT WILL VOID THIS WARRANTY.
COVERED EQUIPMENT
The following heating and cooling equipment is covered by the Limited
Warranty:
Oil Furnaces: LG14.
Unit/Duct Heaters: LD24 (all units), LF24 and TUA (100,000 to 400,000 btuh units).
Evaporator Coils: C17.
Air Handlers: ACBX32, CB17, CBH17, TAA.
Condensing Units: 4SCU13LC, TSA.
Heat Pumps: 4SHP13LC, TPA.
Packaged Equipment: KCA, KGA, KHA, TCA, TGA, THA, RGE13, RHP13, RCE13.
Electric Heat Sections: AECB29, ECH16, EH17, ECH24.
ONE (1) YEAR COVERAGE −− ALL APPLICATIONS
The covered equipment and covered components are warranted by the
manufacturer for a period of one (1) year from the date of the original unit
installation, when installed and operated in accordance with the manufac-
turer’s recommendations. If, during this period, a covered component fails
because of a manufacturing defect, the manufacturer will provide a free
replacement part to the owner. The owner must pay shipping charges and
all other costs of warranty service.
EXTENDED COVERAGE
This limited warranty provides extended coverage on the components
outlined below. The extended warranty coverage begins with the date of
the original unit installation and represents the total warranty period for the
specific component.
Heat Exchangers:
KGA and TGA (Aluminized −− All applications) −− Ten (10) years.
KGA and TGA (Stainless −− All applications) −− Fifteen (15) years.
RGE13, RHP13 and RCE13 −− Ten (10) years.
LF24 and TUA (Aluminized −− All applications) −− Ten (10) years.
LF24 and TUA (Stainless −− All applications) −− Fifteen (15) years.
LD24 (Aluminized −− All applications) −− Two (2) years.
LD24 (Stainless −− All applications) −− Five (5) years.
LG14 (All applications) −− Five (5) years.
Burners: LG14
−− Three (3) years.
Compressors:
4SCU13LC, 4SHP13LC −− Five (5) years.
TSA, TPA −− Five (5) years.
KCA, KGA, KHA, TCA, TGA, THA −− Five (5) years.
RGE13, RHP13, RCE13 −− Five (5) years.
NOTE − If the date of original installation cannot be verified, the warranty
period will be deemed to begin six (6) months after the date of manufac-
ture.
COMPONENT AVAILABILITY
In the event that a component covered by this warranty is no longer available, the
manufacturer will, at its option, provide a free suitable substitute component or
allow the owner to purchase an equivalent new unit at a reduced price of 20 per-
cent of the list price in effect on the date of the failure. The owner must pay ship-
ping charges and all other costs of warranty service.
EXCLUDED COMPONENTS
The following components are not protected by this warranty: cabinets,
cabinet pieces, air filters, driers, refrigerant, belts, wiring, fuses and unit
accessories.
REPAIRS
All repairs of covered components must be made with authorized service
parts by a licensed professional service contractor (or equivalent).
CARE OF EQUIPMENT
This new unit must be properly installed, operated and maintained by a li-
censed professional installer (or equivalent) or service agency in accordance
with the unit installation, operation and maintenance instructions provided
with each unit. Failure to provide maintenance per the manufacturer’s instruc-
tions will void this warranty. The owner may be asked to provide written docu-
mentation of annual and other periodic preventive maintenance.

Page 16 of 16 506941-01Issue 1148
WARRANTY PROCEDURE
When warranty parts are required:
1 − Be prepared to furnish the following information:
a − Complete model and serial number.
b − Proof of required periodic maintenance, installation date and location
if warranty claim.
c − An accurate description of the problem.
2 − Call your local installing contractor.
3 − If the installing contractor is unable to provide warranty parts, check the
yellow pages for another contractor in your area. If you are unable to se-
cure assistance from a contractor, contact the appropriate manufacturer
listed below:
Lennox Industries Inc. Allied Air Enterprises
P.O. Box 799900 215 Metropolitan Drive
Dallas, TX 75379−9900 West Columbia, SC 29170
1−800−9LENNOX 1−800−448−5872
WARRANTY LIMITATIONS
1 − The manufacturer will not pay labor involved in diagnostic calls, or in re-
moving, repairing, servicing, or replacing parts. Such costs may be cov-
ered by a separate warranty provided by the installing contractor.
2 − This warranty is void if the covered equipment is removed from the origi-
nal installation site.
3 − This warranty does not cover damage or defect resulting from:
a − Flood, wind, fire, lightning, mold, or installation and operation in a cor-
rosive atmosphere, or otherwise in contact with corrosive materials
(chlorine, fluorine, salt, recycled waste water, urine, fertilizers, or oth-
er damaging substances or chemicals).
b − Accident, neglect, or unreasonable use or operation of the equip-
ment, including operation of electrical equipment at voltages other
than the range specified on the unit nameplate (includes damages
caused by brownouts), or reverse rotation of compressors or motors
due to improper phasing.
c − Modification, change or alteration of the equipment, except as di-
rected in writing by the manufacturer.
d − Operation with system components (indoor unit, outdoor unit and re-
frigerant control devices) which do not match or meet the specifica-
tions recommended by the manufacturer.
e − Operation of packaged gas/electric units (equipped with aluminized
heat exchanger) with mixed air temperatures of less than 45°F (7°C).
f − Operation of furnaces with return air temperatures of less than 60°F
(16°C) or operation of a furnace field−installed downstream from a
cooling coil.
g − Use of contaminated or alternate refrigerant.
The installation of replacement parts under terms of this warranty will not ex-
tend the original warranty period.
The manufacturer makes no express warranties other than the warranty
specified above. All implied warranties, including the implied warranty
of merchantability and fitness for a particular purpose, are excluded to
the extent legally permissible. Should such exclusion or limitation of the
warranty be unenforceable, such implied warranties are in any event
limited to to a period of one (1) year. Liability for incidental and conse-
quential damages is excluded. Some states do not allow limitations on
the duration of an implied warranty or the exclusion or limitation of inci-
dental or consequential damages, so the limitations or exclusions may
not apply to you.
The manufacturer will not pay electricity or fuel costs, or increases in
electricity or fuel costs, for any reason whatsoever, including additional
or unusual use of supplemental electric heat. This warranty does not
cover lodging expenses.
The manufacturer shall not be liable for any default or delay in perfor-
mance under this warranty caused by any contingency beyond its con-
trol.
This warranty gives you specific legal rights, and you may also have other
rights which vary from state to state.
NOTE TO CUSTOMER
Please complete information below and retain this warranty for your re-
cords and future reference.
Unit Model Number:
Serial Number: Date:
Installing Contractor: Phone:
FORM W−024−L3 −− 9/1/2011
Supersedes 6/1/2009
Litho U.S.A.E2011
*PW-024-L3*
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