Rheem RGPE series User manual

92-24161-77-02
SUPERSE ES 92-24161-77-01
INSTALLATION INSTRUCTIONS
FOR RGPE UPFLOW, HORIZONTAL, RGLE OWNFLOW 2 STAGE,
80+ GAS FURNACES
IF THE INFORMATION IN THESE INSTRUCTIONS IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION
MAY RESULT, CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
RECOGNIZE THIS SYMBOL AS AN INDICATION OF IMPORTANT SAFETY
INFORMATION!
THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED SERVICE PERSONNEL FOR PROPER
INSTALLATION, ADJUSTMENT AND OPERATION OF THIS UNIT. READ THESE INSTRUCTIONS
THOROUGHLY BEFORE ATTEMPTING INSTALLATION OR OPERATION. FAILURE TO FOLLOW THESE
INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION, ADJUSTMENT, SERVICE OR
MAINTENANCE, POSSIBLY RESULTING IN FIRE, ELECTRICAL SHOCK, CARBON MONOXIDE POISON-
ING, EXPLOSION, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
PROPOSITION 65 WARNING: THIS PRODUCT CONTAINS CHEMICALS KNOWN TO THE STATE OF
CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM.
— Do not store or use gasoline or other flammable vapors and liquids, or other combustible materials
in the vicinity of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions
• If you cannot reach your gas supplier, call the fire department.
• Do not return to your home until authorized by the gas supplier or fire department.
— DO NOT RELY ON SMELL ALONE TO DETECT LEAKS. DUE TO VARIOUS FACTORS, YOU MAY NOT
BE ABLE TO SMELL FUEL GASES.
• U.L. recognized fuel gas and CO detectors are recommended in all applications, and their installa-
tion should be in accordance with the manufacturer’s recommendations and/or local laws, rules
regulations, or customs.
— Improper installation, adjustment, alteration, service or maintenance can cause injury, property
damage or death. Refer to this manual. Installation and service must be performed by a qualified
installer, service agency or the gas supplier. In the commonwealth of Massachusetts, installation
must be performed by a licensed plumber or gas fitter for appropriate fuel.
ISO 9001:2008
COMMUNICATING
THERMOSTATS
INSTALLATION
SEE PAGE 84
DO NOT EXCHANGE MEMORY CARDS BETWEEN 2 OR MORE DIFFERENT FURNACES. DOING
SO COULD RESULT IN UNEXPECTED OPERATION – INCLUDING INADEQUATE AIRFLOW DUR-
ING HEATING (AND OTHER MODES) OR A LOSS OF HEAT.
!WARNING
This Memory Card must be removed (broken away) from the
furnace control when the control is replaced. The card must
be inserted into the connector at J15 of the replacement con-
trol. Failure to retain this memory card with the furnace when
replacing the furnace control could result in no operation
when the furnace control is replaced.

2
IMPORTANT: To insure proper installa-
tion and operation of this product, com-
pletely read all instructions prior to
attempting to assemble, install, operate,
maintain or repair this product. Upon
unpacking of the furnace, inspect all
parts for damage prior to installation and
start-up.
TABLE OF CONTENTS
SAFETY INFORMATION ..........................................................................................................................................3
INSTALLATION CHECK LIST...................................................................................................................................5
GENERAL INFORMATION.......................................................................................................................................6
IMPORTANT INFORMATION ABOUT EFFICIENCY AN IN OOR AIR QUALITY...................................6
RECEIVING.....................................................................................................................................................7
LOCATION REQUIREMENTS AN CONSI ERATIONS.......................................................................................7
LOCATION.......................................................................................................................................................7
CLEARANCE-ACCESSIBILITY....................................................................................................................10
SITE SELECTION.........................................................................................................................................10
UCTING ......................................................................................................................................................10
COMBUSTION AN VENTILATION AIR ...............................................................................................................12
COMBUSTION AIR REQUIREMENTS........................................................................................................12
VENTING.................................................................................................................................................................16
GENERAL INFORMATION...........................................................................................................................16
RAFT IN UCER.........................................................................................................................................16
FURNACE CATEGORY INFORMATION.....................................................................................................16
IMPORTANTAPPLICATION NOTES...........................................................................................................16
B-1 VERTICAL VENTING.............................................................................................................................17
SPECIAL VENT SYSTEMS..........................................................................................................................17
POWER VENT SYSTEMS...........................................................................................................................18
EXISTING VENT SYSTEMS........................................................................................................................18
GAS SUPPLY AN PIPING....................................................................................................................................19
GAS SUPPLY................................................................................................................................................19
GAS PIPING..................................................................................................................................................19
GAS PRESSURE..........................................................................................................................................20
LP CONVERSION.........................................................................................................................................20
SETTING GAS PRESSURE.........................................................................................................................21
A JUSTING OR CHECKING FURNACE INPUT.......................................................................................22
ELECTRICAL WIRING............................................................................................................................................23
ELECTRICAL CHECKS........................................................................................................................24
ACCESSORIES.......................................................................................................................................................25
FIEL INSTALLE OPTIONACCESSORIES ............................................................................................25
OTHER ACCESSORIES AVAILABLE..........................................................................................................27
RXGW-B01 CHIMNEYA APTER...............................................................................................................27
TYPICAL WIRING FOR SELECTACCESSORIES FOR COMMUNICATING RESI ENTIAL
SYSTEMS............................................................................................................................................27
80+ HIGH ALTITU E INSTRUCTIONS.......................................................................................................29
LP GAS..........................................................................................................................................................29
ORIFICE OR ERING INFORMATION........................................................................................................29
ALTERNATE METHO FOR CANA IAN HIGH-ALTITU E ERATE......................................................29
AIRFLOW.................................................................................................................................................................31
INTEGRATE FURNACE CONTROL ...................................................................................................................33
24 VAC THERMOSTAT INPUTS..................................................................................................................33
SPECIAL CONFIGURATION–COMMUNICATING THERMOSTAT W/NON-COMM. CON ENSER......34
24 VAC FROM TRANSFORMER CONNECTIONS....................................................................................34
FUSE .............................................................................................................................................................34
115 VAC TERMINALS...................................................................................................................................34
IN UCE RAFT MOTOR OUTPUT .........................................................................................................34
NEUTRAL TERMINALS................................................................................................................................35
ELECTRONICAIR CLEANER OUTPUT.....................................................................................................35
HUMI IFIER OUTPUT.................................................................................................................................35
15-PIN MATE-N-LOK CONNECTOR...........................................................................................................35
COMMUNICATING ECM MOTOR COMMUNICATIONS CONNECTION.................................................36
SPARK IGNITION TRANSFORMER ...........................................................................................................37
R-J11 CONNECTOR.....................................................................................................................................37
COMMUNICATIONS NETWORK CONNECTION......................................................................................37
COMMUNICATIONS L.E. .’S......................................................................................................................37
LEARN BUTTON...........................................................................................................................................38
MEMORY CAR CONNECTOR..................................................................................................................38
MEMORY CAR ...........................................................................................................................................38
REPLACING THE FURNACE CONTROL...................................................................................................41
IPSWITCHES .............................................................................................................................................44
SW1...............................................................................................................................................................44
SW2...............................................................................................................................................................46
FURNACE OPERATION USING NON-COMMUNICATING SIINGLE-STAGEAN TWO-STAGE
THERMOSTATS......................................................................................................................................46
SW3-1 AN SW3-2.......................................................................................................................................47
BIAS / TERMINATION..................................................................................................................................48
UAL SEVEN-SEGMENT IAGNOSTIC ISPLAY...................................................................................48
FAULT CO E BUFFER................................................................................................................................48
CLEARING IAGNOSTIC FAULT CO ES FROM THE BUFFER.............................................................48
COMMUNICATING SYSTEMS....................................................................................................................49
START-UP PROCE URES....................................................................................................................................57
IGNITOR PLACEMENT, ALIGNMENT & LOCATION .................................................................................57
TO START THE FURNACE..........................................................................................................................57
TO SHUT OWN THE FURNACE..............................................................................................................57
SEQUENCE OF OPERATION.....................................................................................................................57
A JUSTING OR CHECKING FURNACE INPUT.......................................................................................59
MAINTENANCE.......................................................................................................................................................60
FILTERS........................................................................................................................................................60
SYSTEM OPERATION INFORMATION......................................................................................................62
ANNUAL INSPECTION ................................................................................................................................62
LUBRICATION...............................................................................................................................................62
REPLACEMENT PARTS..............................................................................................................................62
NOx MO ELS...............................................................................................................................................62
TROUBLESHOOTING ............................................................................................................................62-63
WIRING IAGRAM.......................................................................................................................................79
THERMOSTATS......................................................................................................................................................80
NON-COMMUNICATING THERMOSTATS.................................................................................................80
SEQUENCE OF OPERATION.....................................................................................................................80
COMMUNICATING THERMOSTATS.....................................................................................................................84
Installation Instructions are updated on a
regular basis. This is done as product
changes occur or if new information
becomes available. In this publication,
an arrow ➤denotes changes from the
previous edition or additional new mater-
ial.
IMPORTANT: All Manufacturer products
meet current Federal OSHA Guidelines
for safety. California Proposition 65
warnings are required for certain prod-
ucts, which are not covered by the
OSHA standards.
California's Proposition 65 requires
warnings for products sold in California
that contain, or produce, any of over 600
listed chemicals known to the State of
California to cause cancer or birth
defects such as fiberglass insulation,
lead in brass, and combustion products
from natural gas.
All “new equipment” shipped for sale in
California will have labels stating that the
product contains and/or produces
Proposition 65 chemicals. Although we
have not changed our processes, having
the same label on all our products facili-
tates manufacturing and shipping. We
cannot always know “when, or if” prod-
ucts will be sold in the California market.
You may receive inquiries from cus-
tomers about chemicals found in, or pro-
duced by, some of our heating and air-
conditioning equipment, or found in nat-
ural gas used with some of our products.
Listed below are those chemicals and
substances commonly associated with
similar equipment in our industry and
other manufacturers.
• Glass Wool (Fiberglass) Insulation
• Carbon Monoxide (CO)
• Formaldehyde
• Benzene
More details are available at the
Websites for OSHA (Occupational
Safety and Health Administration), at
www.osha.gov and the State of
California's OEHHA (Office of
Environmental Health Hazard
Assessment), at www.oehha.org.
Consumer education is important since
the chemicals and substances on the list
are found in our daily lives. Most con-
sumers are aware that products present
safety and health risks, when improperly
used, handled and maintained.

COMBUSTION PRO UCTS MUST
BE ISCHARGE OUT OORS.
CONNECT THIS FURNACE TO AN
APPROVE VENT SYSTEM ONLY,
AS SPECIFIE IN VENT PIPE
INSTALLATION SECTION OF
THESE INSTRUCTIONS.
PROVI E A EQUATE COMBUS-
TION AN VENTILATION AIR TO
THE FURNACE SPACE AS SPECI-
FIE IN THE COMBUSTION AN
VENTILATION AIR SECTION OF
THESE INSTRUCTIONS.
USE ONLY WITH TYPE OF GAS
APPROVE FOR THIS FURNACE.
REFER TO THE FURNACE RATING
PLATE.
!WARNING
!WARNING
!WARNING
NEVER TEST FOR GAS LEAKS
WITH AN OPEN FLAME. USE A
COMMERCIALLY AVAILABLE
SOAP SOLUTION MA E SPECIFI-
CALLY FOR THE ETECTION OF
LEAKS TO CHECK ALL CONNEC-
TIONS, AS SPECIFIE IN GAS
SUPPLY AN PIPING SECTION OF
THESE TION INSTRUCTIONS.
!WARNING
THIS FURNACE IS NOT
APPROVE OR RECOMMEN E
FOR INSTALLATION ON ITS BACK,
WITH ACCESS OORS FACING
UPWAR S, OR WITH SUPPLY AIR
ISCHARGING TO THE RIGHT-
HAN SI E WHEN FACING THE
FRONT OFTHE FURNACE. SEE
FIGURES 6 AN 7 FOR PROPER
INSTALLATION OF HORIZONTAL
MO ELS.
!WARNING
!WARNING
3
SAFETY INFORMATION
O NOT INSTALL THIS FURNACE
IN A MOBILE HOME!!THIS FUR-
NACE IS NOT APPROVE FOR
INSTALLATION IN A MOBILE
HOME. OING SO COUL CAUSE
FIRE, PROPERTY AMAGE, PER-
SONAL INJURY OR EATH.
IMPORTANT!
THE COMMONWEALTH OF MASSA-
CHUSETTS REQUIRES COMPLIANCE
WITH REGULATION 248 CMR 4.00
AN 5.00 FOR INSTALLATION OF
THROUGH-THE-WALL VENTE GAS
APPLIANCES AS FOLLOWS:
(a) For all side wall horizontally vented
gas fueled equipment installed in every
dwelling, building or structure used in
whole or in part for residential purposes,
including those owned or operated by
the Commonwealth and where the side
wall exhaust vent termination is less than
seven (7) feet above finished grade in
the area of the venting, including but not
limited to decks and porches, the follow-
ing requirements shall be satisfied:
1. INSTALLATION OF CARBON
MONOXI E ETECTORS. At the time of
installation of the side wall horizontal
vented gas fueled equipment, the
installing plumber or gasfitter shall
observe that a hard wired carbon
monoxide detector with an alarm and
battery back-up is installed on the floor
level where the gas equipment is to be
installed. In addition, the installing
plumber or gasfitter shall observe that a
battery operated or hard wired carbon
monoxide detector with an alarm is
installed on each additional level of the
dwelling, building or structure served by
the side wall horizontal vented gas
fueled equipment. It shall be the respon-
sibility of the property owner to secure
the services of qualified licensed profes-
sionals for the installation of hard wired
carbon monoxide detectors.
a. In the event that the side wall horizon-
tally vented gas fueled equipment is
installed in a crawl space or an attic, the
hard wired carbon monoxide detector
with alarm and battery back-up may be
installed on the next adjacent floor level.
b. In the event that the requirements of
this subdivision can not be met at the
time of completion of installation, the
owner shall have a period of thirty (30)
days to comply with the above require-
ments; provided, however, that during
said thirty (30) day period, a battery
operated carbon monoxide detector with
an alarm shall be installed.
2. APPROVE CARBON MONOXI E
ETECTORS. Each carbon monoxide
detector as required in accordance with
the above provisions shall comply with
NFPA 720 and be ANSI/UL 2034 listed
and IAS certified.
3. SIGNAGE. A metal or plastic identifi-
cation plate shall be permanently mount-
ed to the exterior of the building at a
minimum height of eight (8) feet above
grade directly in line with the exhaust
vent terminal for the horizontally vented
gas fueled heating appliance or equip-
ment. The sign shall read, in print size
no less than one-half (1/2) inch in size,
“GAS VENT IRECTLY BELOW. KEEP
CLEAR OF ALL OBSTRUCTIONS”.
4. INSPECTION. The state or local gas
inspector of the side wall horizontally
vented gas fueled equipment shall not
approve the installation unless, upon
inspection, the inspector observes car-
bon monoxide detectors and signage
installed in accordance with the provi-
sions of 248 CMR 5.08(2)(a) 1 through
4.
(b) EXEMPTIONS: The following equip-
ment is exempt from 248 CMR
5.08(2)(a)1 through 4:
1. The equipment listed in Chapter 10
entitled “Equipment Not Required To Be
Vented” in the most current edition of
NFPA 54 as adopted by the Board; and
2. Product Approved side wall horizon-
tally vented gas fueled equipment
installed in a room or structure sepa-
rate from the dwelling, building or struc-
ture used in whole or in part for resi-
dential purposes.
(c) MANUFACTURER REQUIRE-
MENTS – GAS EQUIPMENT VENT-
ING SYSTEM PROVI E . When the
manufacturer of Product Approved side
wall horizontally vented gas equipment
provides a venting system design or
venting system components with the
equipment, the instructions provided by
the manufacturer for installation of the
equipment and the venting system shall
include:
1. etailed instructions for the installa-
tion of the venting system design or the
venting system components; and
2. A complete parts list for the venting
system design or venting system.
(d) MANUFACTURER REQUIRE-
MENTS – GAS EQUIPMENT VENT-
ING SYSTEM NOT PROVI E . When
the manufacturer of a Product
Approved side wall horizontally vented
gas fueled equipment does not provide
the parts for venting the flue gases, but
identifies “special venting systems”, the
following requirements shall be satis-
fied by the manufacturer:
1. The referenced “special venting sys-
tem” instructions shall be included with
the appliance or equipment installation
instructions; and
2. The “special venting systems” shall
be Product Approved by the Board, and
the instructions for that system shall
include a parts list and detailed installa-
tion instructions.
(e) A copy of all installation instructions
for all Product Approved side wall hori-
zontally vented gas fueled equipment,
all venting instructions, all parts lists for
venting instructions, and/or all venting
design instructions shall remain with
the appliance or equipment at the com-
pletion of the installation.
INSTALL THIS FURNACE ONLY IN
A LOCATION AN POSITION AS
SPECIFIE IN THE LOCATION
REQUIREMENTS AN CONSI ER-
ATIONS SECTION OF THESE
INSTRUCTIONS. PROVI E A E-
QUATE COMBUSTION AN VENTI-
LATION AIR TO THE FURNACE
SPACE AS SPECIFIE INTHE
VENTING SECTION OF THESE
INSTRUCTIONS.
!WARNING

UCT LEAKS CAN CREATE AN
UNBALANCE SYSTEM AN RAW
POLLUTANTS SUCH AS IRT, UST,
FUMES AN O ORS INTO THE
HOME CAUSING PROPERTY AM-
AGE. FUMES AN O ORS FROM
TOXIC, VOLATILE OR FLAMMABLE
CHEMICALS, AS WELL AS AUTOMO-
BILE EXHAUST AN CARBON
MONOXI E (CO), CAN BE RAWN
INTO THE LIVING SPACE THROUGH
LEAKING UCTS AN UNBAL-
ANCE UCT SYSTEMS CAUSING
PERSONAL INJURY OR EATH (SEE
FIGURE 5).
• IF AIR-MOVING EQUIPMENT OR
UCTWORK IS LOCATE IN
GARAGES OR OFF-GARAGE
STORAGE AREAS - ALL JOINTS,
SEAMS, AN OPENINGS IN THE
EQUIPMENT AN UCT MUST BE
SEALE TO LIMIT THE MIGRATION
OF TOXIC FUMES AN O ORS
INCLU ING CARBON MONOXI E
FROM MIGRATING INTO THE LIV-
ING SPACE.
• IF AIR-MOVING EQUIPMENT OR
UCTWORK IS LOCATE IN
SPACES CONTAINING FUEL
BURNING APPLIANCES SUCH AS
WATER HEATERS OR BOILERS -
ALL JOINTS, SEAMS, AN OPEN-
INGS IN THE EQUIPMENT AN
UCT MUST ALSO BE SEALE TO
PREVENT EPRESSURIZATION
OF THE SPACE AN POSSIBLE
MIGRATION OF COMBUSTION
BYPRO UCTS INCLU ING CAR-
BON MONOXI E INTO THE LIVING
SPACE.
IMPROPER INSTALLATION, OR
INSTALLATION NOT MA E IN
ACCOR ANCE WITH THE CSA
INTERNATIONAL (CSA) CERTIFI-
CATION OR THESE INSTRUC-
TIONS, CAN RESULT IN UNSATIS-
FACTORY OPERATION AN /OR
ANGEROUS CON I-TIONS AN
ARE NOT COVERE BY THE UNIT
WARRANTY.
IN COMPLIANCE WITH RECOG-
NIZE CO ES, IT IS RECOM-
MEN E THAT AN AUXILIARY
RAIN PAN BE INSTALLE
UN ER ALL EVAPORATOR COILS
OR UNITS CONTAINING EVAPO-
RATOR COILSTHAT ARE LOCAT-
E IN ANY AREA OF A STRUC-
TURE WHERE AMAGE TO THE
BUIL ING OR BUIL ING CON-
TENTS MAY OCCUR AS A RESULT
OF AN OVERFLOW OFTHE COIL
RAIN PAN OR A STOPPAGE IN
THE PRIMARY CON ENSATE
RAIN PIPING. SEE ACCES-
SORIES SECTION OF THESE
INSTRUCTIONS FOR AUXILIARY
HORIZONTAL OVERFLOW PAN
INFORMATION (MO EL RXBM).
O NOT EXCHANGE MEMORY
CAR S BETWEEN 2 OR MORE
IFFERENT FURNACES. OING
SO COUL RESULT IN UNEX-
PECTE OPERATION – INCLU -
ING INA EQUATE AIRFLOW UR-
ING HEATING (AN OTHER
MO ES OR A LOSS OF HEAT).
!WARNING
!WARNING
NOTICE
NOTICE
WHENTHIS FURNACE IS INSTALLE
IN A RESI ENTIAL GARAGE, IT
MUST BE INSTALLE SO THE BURN-
ERS AN IGNITION SOURCE ARE
LOCATE NO LESSTHAN 18 INCH-
ES ABOVETHE FLOOR.THIS ISTO
RE UCE THE RISK OF IGNITING
FLAMMABLE VAPORS WHICH MAY
BE PRESENT IN A GARAGE.
ALSO,THE FURNACE MUST BE
LOCATE OR PROTECTE TO
AVOI PHYSICAL AMAGE BY VEHI-
CLES. FAILURETO FOLLOW THESE
WARNINGS CAN CAUSE A FIRE OR
EXPLOSION, RESULTING IN PROP-
ERTY AMAGE, PERSONAL INJURY
OR EATH.
USE OF THIS FURNACE IS
ALLOWE URING CONSTRUCTION
IF THE FOLLOWING TEMPORARY
INSTALLATION REQUIREMENTS
ARE MET. INSTALLATION MUST
COMPLY WITH ALL INSTALLATION
INSTRUCTIONS INCLU ING:
• PROPER VENT INSTALLATION;
• FURNACE OPERATING UN ER
THERMOSTATIC CONTROL;
• RETURN AIR UCT SEALE TO
THE FURNACE;
• AIR FILTERS IN PLACE;
• SET FURNACE INPUT RATE AN
TEMPERATURE RISE PER RAT-
ING PLATE MARKING;
• MEANS FOR PROVI ING OUT-
OOR AIR REQUIRE FOR COM-
BUSTION;
• RETURN AIR TEMPERATURE
MAINTAINE BETWEEN 55°F
(13°C) AN 80°F (27°C); AN ;
• CLEAN FURNACE, UCT WORK
AN COMPONENTS UPON SUB-
STANTIAL COMPLETION OF THE
CONSTRUCTION PROCESS, AN
VERIFY FURNACE OPERATING
CON ITIONS INCLU ING IGNI-
TION, INPUT RATE,TEMPERA-
TURE RISE AN VENTING,
ACCOR ING TO THE INSTRUC-
TIONS.
!WARNING
!WARNING
WHEN A FURNACE IS INSTALLE
SO THAT SUPPLY UCTS CARRY
AIR CIRCULATE BY THE FUR-
NACE TO AREAS OUTSI E THE
SPACE CONTAINING THE FUR-
NACE, THE RETURN AIR SHALL
ALSO BE HAN LE BY UCT(S)
SEALE TO THE FURNACE CAS-
ING AN TERMINATING OUTSI E
THE SPACE CONTAINING THE
FURNACE.
!WARNING
ALWAYS INSTALL FURNACE TO
OPERATE WITHIN THE FUR-
NACE'S INTEN E TEMPERA-
TURE-RISE RANGE WITH A UCT
SYSTEM WHICH HAS AN EXTER-
NAL STATIC PRESSURE WITHIN
THE ALLOWABLE RANGE, AS
SPECIFIE IN UCTING SECTION
OF THESE INSTRUCTIONS. SEE
ALSO FURNACE RATING PLATE.
!WARNING !WARNING
O NOT JUMPER OR OTHERWISE
BYPASS OVERTEMPERATURE OR
ANY OTHER LIMITS OR SWITCHES
ONTHE FURNACE. IF ONE OF
THESE LIMITS OR SWITCHES
SHOUL TRIP OR OPEN,THE USER
ISTO BE INSTRUCTE TO CALL A
QUALIFIE INSTALLER, SERVICE
AGENCY ORTHE GAS SUPPLIER.
FOR MANUALLY RESETABLE
SWITCHES,THE USER IS FURTHER
INSTRUCTE TO NEVER RESETTHE
SWITCH, BUTTO CALL A QUALIFIE
TECHNICIAN. MANUAL RESET
SWITCHES MAY REQUIRE FURTHER
CORRECTIVE ACTIONS. FAILURETO
FOLLOW THIS WARNING COUL
RESULT IN CARBON MONOXI E
POISONING, SERIOUS INJURY OR
EATH. IFTHE UNIT IS INSTALLE
IN A CLOSET,THE OOR MUST BE
CLOSE WHEN MAKINGTHIS
CHECK. INSTALLERS AN TECHNI-
CIANS ARE INSTRUCTE TO
REPLACE ANY LIMIT OR SAFETY
SWITCH/ EVICE ONLY WITH I ENTI-
CAL REPLACEMENT PARTS.
4

Before beginning any troubleshooting procedure, complete the following installation checklist. A furnace malfunction is some-
times caused by an improper installation. By completing this checklist, the problem may be found and corrected. Make copies
of the checklist and complete one for every Low Profile Furnace service call for your records.
INSTALLATION CHECKLIST
(Refer to this manual for specifics.)
GAS SUPPLY
Adequate pipe size
No gas leaks
Proper supply and manifold gas pressure (check with an accurate U-tube manometer with the furnace and all other
gas appliances operating.)
ELECTRICAL
Correct thermostat and subbase Thermostat model Subbase model
Correct thermostat mode and setting
Correct line supply voltage
Correct power supply polarity is required with electronic ignition
Correct furnace ground to electrical panel
C microamp (∝A) flame signal (hot surface ignition units)
Correct control voltage
Measure and set heat anticipator amperage
Air conditioning low voltage wires connected to terminals “Y” “C” - not with wire nuts
VENTING
Correct vent pipe diameter and length (according to CSA tables) Vent connection size
Correct venting material (according to CSA tables)
Correct lining for masonry chimneys
Adequate clearance from combustibles
Proper negative pressure reading in the vent
Vent pipe secured to induced draft blower housing
COMBUSTION AIR
Proper source of combustion air Optional attic combustion air pull
Correct combustion air opening size Non-attic combustion air pull
FURNACE INSTALLATION
Adequate clearance from combustibles
Adequate clearance for service
Proper air temperature rise (See furnace rating plate)
External static pressure inches w.c.
Correct filter(s)
Correct cooling coil or accessories (if equipped)
Adequate supply and return air ducting Return Air uct Size Supply Air uct Size
Air ducts sealed to prevent leakage
5

Proper balance and sealing of the
duct system improves the efficiency
of the heating and air conditioning
system and improves the indoor air
quality of the home by reducing the
amount of airborne pollutants that
enter homes from spaces where the
ductwork and / or equipment is
located. The manufacturer and the
U.S. Environmental Protection
Agency’s Energy Star Program rec-
ommend that central duct systems
be checked by a qualified contractor
for proper balance and sealing.
UCT LEAKS CAN CREATE AN
UNBALANCE SYSTEM AN
RAW POLLUTANTS SUCH AS
IRT, UST, FUMES AN O ORS
INTO THE HOME CAUSING PROP-
ERTY AMAGE. FUMES AN
O ORS FROM TOXIC, VOLATILE
OR FLAMMABLE CHEMICALS, AS
WELL AS AUTOMOBILE
EXHAUST AN CARBON MONOX-
I E (CO), CAN BE RAWN INTO
THE LIVING SPACETHROUGH
LEAKING UCTS AN UNBAL-
ANCE UCT SYSTEMS CAUS-
ING PERSONAL INJURY OR
EATH (SEE FIGURE 1).
• IF AIR-MOVING EQUIPMENT OR
UCTWORK IS LOCATE IN
GARAGES OR OFF-GARAGE
STORAGE AREAS - ALL
JOINTS, SEAMS, AN OPEN-
INGS IN THE EQUIPMENT AN
UCT MUST BE SEALE TO
LIMIT THE MIGRATION OF
TOXIC FUMES AN O ORS
INCLU ING CARBON MONOX-
I E FROM MIGRATING INTO
THE LIVING SPACE.
• IF AIR-MOVING EQUIPMENT OR
UCTWORK IS LOCATE IN
SPACES CONTAINING FUEL
BURNING APPLIANCES SUCH
6
GENERAL INFORMATION
FIGURE 1
MIGRATION OF ANGEROUS SUBSTANCES, FUMES, AN O ORS INTO LIVING SPACES
!WARNING
The RGPE/RGLE series furnaces are
design certified by CSAfor use with nat-
ural and propane gases as follows:
As a Category I furnace, it may be
vented vertically with type B-1 vent
pipe and also may be common vent-
ed as described in these instructions.
This furnace should be installed in accor-
dance with the American National
Standard Z223.1 - latest edition booklet
entitled “National Fuel Gas Code” (NFPA
54) (in Canada, CSA B149.1 and .2
Installation Codes for gas burning appli-
ances), and the requirements or codes of
the local utility or other authority having
jurisdiction including local plumbing or
waste water codes.
The National Appliance Energy
ConservationAct (NAECA) of 1987
states that any gas furnace manufac-
tured after January 1, 1992, must have a
minimumAnnual Fuel Utilization
Efficiency (AFUE) of 78%. The higher the
AFUE percentage the more usable heat
energy the consumer gets for every dol-
lar of fuel purchased. This is similar to
the EPA's minimum gas mileage require-
ment for automobiles. It gives the con-
sumer a relatively easy way to make
direct efficiency comparisons between
different furnace brands and styles.
A highAFUE value, which translates into
a low operating cost, is not the only con-
cern that consumers have. They also
want a furnace with a reasonable
installed cost. They want a furnace that
provides them with comfort – their main
concern. And they expect a furnace with
exceptional reliability and longevity.
Gas furnace manufacturers are always
striving to provide consumers with the
best furnace value. The Low Profile
Furnace addresses all those consumer
needs. It gives exceptional efficiency with
a low installation cost. It delivers the
comfort the customer wants along with
the reliability they expect.
The key to all these customer benefits is
the furnace's heat exchanger. The mate-
rials used to construct the furnace in gen-
eral and the heat exchanger in particular
make it a rugged, long lasting unit. The
unique heat exchanger design provides
the customer with a furnace only 34 inch-
es high. This gives the consumer a unit
easily installed in almost every location
that accepts all customary accessories.
With the introduction of higher efficiency
furnaces, special attention must be paid
to the venting system. Only listed venting
systems may be used as stated in the
installation instructions and the National
Fuel Gas Code, ANSI Z223.1 (NFPA 54),
or the Canadian CAN/CGA B149.1 and
B149.2 Installation Codes for Gas
Burning Appliances. Since furnace tech-
nology and venting requirements are
changing, awareness of local, state, and
federal codes and industry changes is
imperative.
NOTE: Always perform a proper heat
loss calculation before specifying the fur-
nace size. This ensures that the furnace
is sized to adequately, economically, heat
the building and provide the correct air-
flow for your application.
IMPORTANT: PROPER APPLICATION,
INSTALLATION AN MAINTENANCE
OF THIS FURNACE IS A MUST IF
CONSUMERSARE TO RECEIVE THE
FULL BENEFITS FOR WHICH THEY
HAVE PAI .
Additional helpful publications available
from the “National Fire Protection
Association” are: NFPA-90A – Installation
ofAir Conditioning and Ventilating
Systems 1985 or latest edition. NFPA-
90B – Warm Air Heating andAir
Conditioning Systems 1984.
These publications are available from:
National Fire Protection Association,
Inc.
Batterymarch Park
Quincy, MA 02269
CSA-INTERNATIONAL
178 Rexdale Blvd.
Etobicoke (Toronto), Ontario
Canada M9W, 1R3
IMPORTANT INFORMATION
ABOUT EFFICIENCY AND
INDOOR AIR
QUALITY
Central cooling and heating equipment
is only as efficient as the duct system
that carries the cooled or heated air. To
maintain efficiency, comfort and good
indoor air quality, it is important to have
the proper balance between the air
being supplied to each room and the air
returning to the cooling and heating
equipment.

GENERAL INFORMATION
1. NOTE: This furnace is shipped with
heat exchanger support brackets
installed under the back of the heat
exchanger. These may be removed
before installation, but it is not
required.
LOCATION
THIS FURNACE IS NOT APPROVE
FOR INSTALLATION IN A MOBILE
HOME. O NOT INSTALL THIS FUR-
NACE IN A MOBILE HOME.
INSTALLATION IN A MOBILE HOME
COUL CAUSE FIRE, PROPERTY
AMAGE, PERSONAL INJURY OR
EATH.
2. IMPORTANT: This furnace is not
approved or recommended for instal-
lation on its back, with access doors
facing upwards.
3. This furnace is suitable for installa-
tion in buildings constructed on-site.
This heating unit should be central-
ized with respect to the heat distribu-
tion system as much as practicable.
4. NOTE: These furnaces are approved
for installation in attics, as well as
alcoves, utility rooms, closets and
crawlspaces.
AS WATER HEATERS OR BOILERS
- ALL JOINTS, SEAMS, AN OPEN-
INGS IN THE EQUIPMENT AN
UCT MUST ALSO BE SEALE TO
PREVENT EPRESSURIZATION OF
THE SPACE AN POSSIBLE
MIGRATION OF COMBUSTION
BYPRO UCTS INCLU ING CAR-
BON MONOXI E INTO THE LIVING
SPACE.
IMPROPER INSTALLATION, OR
INSTALLATION NOT MA E IN
ACCOR ANCE WITH THE CSA
INTERNATIONAL (CSA) CERTIFICA-
TION OR THESE INSTRUCTIONS,
CAN RESULT IN UNSATISFACTORY
OPERATION AN /OR ANGEROUS
CON I-TIONS AN ARE NOT COV-
ERE BY THE UNIT WARRANTY.
IN COMPLIANCE WITH RECOGNIZE
CO ES, IT IS RECOMMEN E THAT
AN AUXILIARY RAIN PAN BE
INSTALLE UN ER ALL EVAPORA-
TOR COILS OR UNITS CONTAINING
EVAPORATOR COILS OR GAS FUR-
NACES USE WITH EVAPORATOR
COILS THAT ARE LOCATE IN ANY
AREA OF A STRUCTURE WHERE
AMAGE TO THE BUIL ING OR
BUIL ING CONTENTS MAY OCCUR
AS A RESULT OF AN OVERFLOW OF
THE COIL RAIN PAN OR A STOP-
PAGE IN THE PRIMARY CON EN-
SATE RAIN PIPING.
7
LOCATION REQUIREMENTS AND CONSIDERATIONS
WARNING
!FIGURE 2
HORIZONTAL FURNACE INSTALLE W/SUPPORT BRACKETS
ST-A0799-01
NOTE: o not block furnace
access with support rods. Maintain
clearances recommended in Figure 3.
Allow enough space for proper service
maintenance or replacement of the heat
exchanger and blower assembly.
EXHAUST
VENT
NOTICE
NOTICE
RECEIVING
Immediately upon receipt, all cartons
and contents should be inspected for
transit damage. Units with damaged
cartons should be opened immediately.
If damage is found, it should be noted
on the delivery papers, and a damage
claim filed with the last carrier.
• After unit has been delivered to job
site, remove carton taking care not to
damage unit.
• Check the unit rating plate for unit
size, electric heat, coil, voltage,
phase, etc. to be sure equipment
matches what is required for the job
specification.
• Read the entire instructions before
starting the installation.
• Some building codes require extra
cabinet insulation and gasketing
when unit is installed in attic applica-
tions.
• If installed in an unconditioned
space, apply caulking around the
power wires, control wires, refrigerant
tubing and condensate line where
they enter the cabinet. Seal the
power wires on the inside where they
exit conduit opening. Caulking is
required to prevent air leakage into
and condensate from forming inside
the unit, control box, and on electrical
controls.
• Install the unit in such a way as to
allow necessary access to the
coil/filter rack and blower/control
compartment.
• Install the unit in a level position
to ensure proper condensate
drainage. Make sure unit is level
in both directions within 1/8”.
• Install the unit in accordance with
any local code which may apply
and the national codes. Latest
editions are available from:
“National Fire Protection
Association, Inc., Batterymarch
Park, Quincy, MA 02269.” These
publications are:
• ANSI/NFPA No. 70-(Latest
Edition) National Electrical Code.
• NFPA90A Installation of Air
Conditioning and Ventilating
Systems.
• NFPA90B Installation of warm air
heating and air conditioning sys-
tems.
• The equipment has been evaluat-
ed in accordance with the Code of
Federal Regulations, Chapter XX,
Part 3280.
5. IMPORTANT:Support this unit when
installed. For attic or crawl space
installation, horizontal furnaces may
be installed on combustible wood
flooring or by using support brackets.
See Figure 2.
6. IMPORTANT:If installing in a util-
ity room, be sure the door is wide
enough to:
a. allow the largest part of the fur-
nace to pass; or
b. allow any other appliance
(such as a water heater) to
pass.

CLEARANCE TO COMBUSTIBLE MATERIAL (INCHES) UPFLOW/HORIZONTAL MO ELS
TOP
LEFT SI E
*Both sides for 1800 CFM or above.
FRONT
RIGHT SI E
ALTERNATE
GAS CONNECTION
BOTTOM
RETURN
AIR
AIRFLOW
SUPPLY
AIR
2613/16
265/8
2411/32
2411/32
19/32
9/16
247/16
281/16
265/8
143/8111/2
34
15/8IA.
23
15
20
7/8IA.
7/8IA.
19/32 19/32
3/4
143/8
111/2
11/4
2317/32
C
F
GAS CONNECTION
ELECTRICAL CONNECTION
OPTIONAL RETURN AIR CUTOUT
(EITHER SI E) FOR USE WITH
EXTERNAL SI E FILTER FRAME*
LOW VOLTAGE
E
SIGHT
GLASS
A
B
FIGURE 3
UPFLOW/HORIZONTAL IMENSIONS
IMPORTANT: This furnace is not approved or recommended for installation on its back, with access doors facing upwards.
REDUCED CLEARANCE (IN.)
Model A B C D E F Left Right Back Top Front Vent Ship.
RGPE Side Side Wgts.
05 171/21611/32 123/8➀15 21/20 3➁0 1 3 6➂105 lbs.
07(A) 171/21611/32 123/8➀15 21/20 3➁0 1 3 6➂115 lbs.
07(B),10 21 1927/32 141/8➀181/221/20 0 0 1 3 6➂120 lbs.
12 241/22311/32 157/8➀22 21/20 0 0 1 3 6➂140 lbs.
➀May require 3”to 4”or 3”or 5”adapter. ➁May be 0”with type B vent.
➂May be 1”with type B vent.
241/2
25.406
OPTIONAL RETURN AIR CUTOUT
(EITHER SI E) FOR USE WITH
EXTERNAL SI E FILTER FRAME*
8

FIGURE 4
OWNFLOW IMENSIONS
REDUCED CLEARANCE (IN.)
Model A B C D E Left Right Back Top Front Vent Ship.
RGLE Side Side Wgts.
07(A) 171/21611/32 121/8➀165/80 3➁0 1 3 6➂105 lbs.
07(B),10 21 1927/32 137/8➀201/80 0 0 1 3 6➂120 lbs.
12 241/22311/32 155/8➀235/80 0 0 1 3 6➂140 lbs.
TOP BOTTOM
241/2
193/4
CA
B
LOW VOLTAGE
GAS CONNECTION
ELECTRIC CONNECTION
ES.A.
R.A.
265/8
2613/16
63/16
203/8
233/8
5/85/8
3/4
5/8
34 233/8
203/8
63/16
247/16
265/8
201/8
281/16
7/8IA.
7/8IA.
15/8IA.
CLEARANCE TO COMBUSTIBLE MATERIAL (INCHES) OWNFLOW MO ELS
NOTE: IN OWNFLOW CONFIGURATION, OPTIONAL AIR CUTOUT IS NOT PERMITTE .
COMBUSTIBLE FLOOR BASE REQUIRE IF FURNACE IS NOT INSTALLE ON COIL BOX.
➀May require 3”to 4”or 3”or 5”adapter. ➁May be 0”with type B vent.
➂May be 1”with type B vent.
SIGHT
GLASS
AIRFLOW
RETURN
AIR SUPPLY
AIR
9

10
CLEARANCE –
ACCESSIBILITY
The design of forced air furnaces with
input ratings as listed in the tables on
the following pages are certified by
CSA for the clearances to combustible
materials shown in inches.
See name/rating plate and clearance
label for specific model number and
clearance information.
Service clearance of at least 24 inches
is recommended in front of all furnaces.
ACCESSIBILITY CLEARANCES,
WHERE GREATER, MUST TAKE
PRECE ENCE OVER FIRE PROTEC-
TION CLEARANCES.
UPFLOW AN HORIZONTAL
FURNACES MUST NOT BE
INSTALLE IRECTLY ON CARPET-
ING, TILE OR OTHER COMBUSTIBLE
MATERIAL OTHER THAN WOO
FLOORING. INSTALLATION ON A
COMBUSTIBLE MATERIAL CAN
RESULT IN FIRE CAUSING PROPER-
TY AMAGE, SEVERE PERSONAL
INJURY OR EATH.
A gas-fired furnace for installation in a
residential garage must be installed so
that the burner(s) and the ignition
source are located not less than 18”
above the floor and the furnace is locat-
ed or protected to avoid physical dam-
age by vehicles.
OWNFLOW UNIT ESIGN IS CERTI-
FIE FOR INSTALLATION ON NON-
COMBUSTIBLE FLOOR. A SPECIAL
COMBUSTIBLE FLOOR SUB-BASE,
FIGURE 5, IS REQUIRE WHEN
INSTALLING ON A COMBUSTIBLE
FLOOR. FAILURE TO INSTALL THE
SUB-BASE MAY RESULT IN FIRE,
PROPERTY AMAGE, PERSONAL
INJURY OR EATH.THIS SPECIAL
BASE IS OFFERE AS AN ACCES-
SORY FROM THE FACTORY. SEETHE
CLEARANCE LABEL LOCATE
INSI E THE FURNACE FORTHE
APPROPRIATE MO EL NUMBER.
THE SPECIAL BASE IS NOT
REQUIRE WHEN THE FURNACE IS
INSTALLE ON TOP OF AN AIR
CON ITIONING PLENUM.
DUCTING
Proper air flow is required for the
correct operation of this furnace. Too
little air flow can cause erratic oper-
ation and can damage the heat
exchanger. The duct system must
carry the correct amount of air for
heating and cooling. Position the
unit to minimize long runs or runs
with many turns and elbows.
Size and install the ducts according
to acceptable industry standards
and methods. The total static pres-
sure drop (including evaporator coil,
if used) of the entire system should
not exceed 0.8” w.c. Be sure to have
adequate space for unit filter. NOTE:
Airflow external static pressure mea-
surements do not include filter or
coil.
IMPORTANT:Some high efficiency
filters have a greater than normal
resistance to air flow.This can
adversely affect furnace operation.
BE SURE TO CHECK AIR FLOW if
using any filter other than the facto-
ry-provided filter.
NOTE: O NOT take return air from
bathrooms, kitchens, furnace rooms,
garages, utility or laundry rooms, or
cold areas.
IMPORTANT:Return air tempera-
ture must be above 55°F during the
heating season.
NEVER ALLOW PRO UCTS OF
COMBUSTION ORTHE FLUE
PRO UCTS TO ENTER THE
RETURN AIR UCTWORK, OR
THE CIRCULATING AIR SUPPLY.
ALL RETURN UCTWORK MUST
BE A EQUATELY SEALE AN
SECURE TO THE FURNACE
WITH SHEET METAL SCREWS,
AN JOINTS TAPE . WHEN A
FURNACE IS MOUNTE ON A
PLATFORM, WITH RETURN
THROUGHTHE BOTTOM, IT MUST
BE SEALE AIRTIGHT BETWEEN
THE FURNACE AN THE RETURN
AIR PLENUM.THE RETURN AIR
PLENUM MUST BE PERMANENT-
LY ENCLOSE . NEVER USE A
OOR AS A PART OF THE
RETURN AIR PLENUM.THE
FLOOR OR PLATFORM MUST
PROVI E SOUN PHYSICAL
SUPPORT OFTHE FURNACE,
WITHOUT SAGGING, CRACKS,
GAPS, ETC., AROUN THE BASE
AS TO PROVI E A SEAL
BETWEEN THE SUPPORT AN
THE BASE.
SITE SELECTION
1. Select a site in the building near the
center of the proposed, or existing,
duct system.
2. Give consideration to the vent sys-
tem piping when selecting the fur-
nace location. Be sure the venting
system can travel from the furnace to
the termination with minimal length
and elbows.
3. Locate the furnace near the existing
gas piping. Or, if running a new gas
line, locate the furnace to minimize
the length and elbows in the gas pip-
ing.
4. Locate the furnace to maintain prop-
er clearance to combustibles as
shown in Figures 3 and 4.
WHEN COILS ARE INSTALLE
ABOVE A FINISHE CEILING OR
LIVING AREA, IT IS RECOMMEN E
THAT AN AUXILIARY SHEET METAL
CON ENSATE RAIN PAN BE FAB-
RICATE AN INSTALLE UN ER
ENTIRE UNIT. FAILURE TO O SO
CAN RESULT IN PROPERTY AM-
AGE. RUN CON ENSATE TO A
LOCATION WHERE IT IS NOTICE-
ABLE.
COMBUSTIBLE MATERIAL MUST
NOT BE PLACE ON OR AGAINST
THE FURNACE JACKET OR WITHIN
THE SPECIFIE CLEARANCES OF
THE VENT PIPE.THE AREA AROUN
THE FURNACE MUST BE KEPT
CLEAR AN FREE OF ALL COM-
BUSTIBLE MATERIALS INCLU ING
GASOLINE AN OTHER FLAMMA-
BLE VAPORS AN LIQUI S.
PLACEMENT OF COMBUSTIBLE
MATERIALS ON, AGAINST OR
AROUN THE FURNACE JACKET
CAN CAUSE AN EXPLOSION OR
FIRE RESULTING IN PROPERTY
AMAGE, PERSONAL INJURY OR
EATH.THE FURNACE OWNER
SHOUL BE CAUTIONE THAT THE
FURNACE AREA MUST NOT BE
USE AS A BROOM CLOSET OR
FOR ANY OTHER STORAGE PUR-
POSES.
CAUTION
!
WARNING
!
WARNING
!
WARNING
!
WARNING
!

FAILURE TO PREVENT PRO UCTS
OF COMBUSTION FROM BEING CIR-
CULATE INTOTHE LIVING SPACE
CAN CREATE POTENTIALLY HAZ-
AR OUS CON ITIONS, INCLU ING
CARBON MONOXI E POISONING
THAT COUL RESULT IN PERSONAL
INJURY OR EATH.
O NOT, UN ER ANY CIRCUM-
STANCES, CONNECT RETURN OR
SUPPLY UCTWORK TO OR FROM
ANY OTHER HEAT PRO UCING
EVICE SUCH AS A FIREPLACE
INSERT, STOVE, ETC. OING SO
MAY RESULT IN FIRE, CARBON
MONOXI E POISONING, EXPLO-
SION, PERSONAL INJURY OR PROP-
ERTY AMAGE.
BLOWER AN BURNERS MUST
NEVER BE OPERATE WITHOUT
THE BLOWER OOR IN PLACE.THIS
IS TO PREVENT RAWING GAS
FUMES (WHICH COUL CONTAIN
HAZAR OUS CARBON MONOXI E)
INTO THE HOME THAT COUL
RESULT IN PERSONAL INJURY OR
EATH.
UPFLOW UNITS
1. Set furnace in place and connect the
return duct or return air cabinet to
unit. Make the connection air-tight to
prevent entraining combustion gases
from any adjacent fuel-burning appli-
ances. Unit return air may be con-
nected on the sides or bottom of the
return air compartment.
a. Openings in the side must be cut
out the full width of the knockouts
on the unit. If using side return air,
THE BOTTOM base plate must be
installed.
NOTE: Where the maximum airflow
is 1800 CFM or more, both sides or
the bottom must be used for return
air.
b. If using bottom return air, place fur-
nace over return air plenum and
seal furnace bottom to return air
plenum.
A SOLI METAL BASE PLATE, (SEE
TABLE 1) MUST BE IN PLACE WHEN
THE FURNACE IS INSTALLE WITH
SI E AIR RETURN UCTS. FAILURE
TO INSTALL A BASE PLATE COUL
CAUSE PRO UCTS OF COMBUS-
TION TO BE CIRCULATE INTO THE
LIVING SPACE AN CREATE POTEN-
TIALLY HAZAR OUS CON ITIONS,
INCLU ING CARBON MONOXI E
POISONING OR EATH.
2. If summer air conditioning is desired,
position the indoor coil on the supply
air side of the furnace. Insure that no
air can bypass this coil.
3. Connect the supply air plenum to the
furnace plenum opening, or indoor
coil.
NOTE: The RGLE has louvers to cool
the inducer motor bearings.
DOWNFLOW UNITS
THE OWNFLOW FURNACE ESIGN
IS CERTIFIE FOR INSTALLATION
ON A NON-COMBUSTIBLE FLOOR.
IF INSTALLE ON A COMBUSTIBLE
FLOOR, USE THE SPECIAL BASE
SPECIFIE ON THE FURNACE
CLEARANCE LABEL. FAILURE TO
INSTALL THE SPECIAL BASE MAY
RESULT IN FIRE, PROPERTY AM-
AGE, PERSONAL INJURY OR
EATH.THIS SPECIAL BASE IS
SHIPPE FROM THE FACTORY AS
AN ACCESSORY.
1. Position the unit over the supply
air plenum and connect.
a. If installing on a combustible
floor and not using an evapo-
rator coil box, install the spe-
cial combustible floor base. See
Figure 5.
b. If summer air conditioning is
desired, position the indoor coil
on the supply air side. Insure
that no air can bypass this coil.
2. Connect the return air ducting to
the return air opening at the top of
the unit. Make the connection air
tight to prevent entraining com-
bustion gases from an adjacent
fuel-burning appliance.
HORIZONTAL UNITS
1. Unit can be mounted left or right
side airflow configuration.
2. Position the unit on adequate
supports or by using support
brackets (see Figure 2) and con-
nect supply plenum and return.
3. If summer air conditioning is
desired, position the indoor coil
on the supply air side of the unit.
Insure that no air can bypass this
coil.
4. Secure the four angle brackets
shipped with the unit to the return
air opening. See Figure 6.
Connect the return air ducting to
the return air opening at the top of
the unit. Make the connection air
tight to prevent entraining com-
bustion gases from an adjacent
fuel-burning appliance.
NOTE: o not block furnace access
with support rods. Maintain clear-
ances recommended in Figure 3.
Allow enough space for proper ser-
vice maintenance or replacement of
the heat exchanger and blower
assembly.
11
WARNING
!
WARNING
!
WARNING
!
FIGURE 5
COMBUSTIBLE FLOOR BASE (RXGC-B17, -B21, -B24)
TABLE 1
FURNACE BASE BASE
WI TH PLATE NO. PLATE SIZE
171/2” RXGB- 17 151/8”x 239/16”
21” RXGB- 21 185/8” x 239/16”
241/2” RXGB- 24 255/8” x 239/16”

THIS FURNACE AN ANY OTHER
FUEL-BURNING APPLIANCE MUST
BE PROVI E WITH ENOUGH
FRESH AIR FOR PROPER COMBUS-
TION AN VENTILATION OF THE
FLUE GASES. MOST HOMES WILL
REQUIRETHAT OUTSI E AIR BE
SUPPLIE INTO THE FURNACE
AREA. FAILURE TO O SO CAN
CAUSE EATH FROM CARBON
MONOXI E POISONING.
Adequate facilities for providing air for
combustion and ventilation must be
provided in accordance with section
5.3, Air for Combustion and Ventilation,
of the National Fuel Gas Code, ANSI,
Z223.1 latest edition or CSA B149.1
and .2 or, applicable provisions for the
local building codes, and not obstructed
so as to prevent the flow of air to the
furnace.
FIGURE 6
HORIZONTAL RETURN AIR UCT
(LEFT-HAN AIRFLOW POSITION SHOWN)
FIGURE 7
AIR FROM HEATE SPACE
COMBUSTION AIR REQUIRE-
MENTS
IMPORTANT:Air for combustion and
ventilation must not come from a corro-
sive atmosphere. Any failure due to cor-
rosive elements in the atmosphere is
excluded from warranty coverage.
The following types of installation may
require OUT OOR AIR for combustion,
due to chemical exposures:
• Commercial buildings
• Buildings with indoor pools
• Furnaces installed in laundry
rooms
• Furnaces in hobby or craft rooms
• Furnaces installed near chemical
storage areas.
Exposure to the following sub-
stances in the combustion air supply
may also require OUT OOR AIR for
combustion:
• Permanent wave solutions
• Chlorinated waxes and cleaners
• Chlorine-based swimming pool
chemicals
• Water softening chemicals
• e-icing salts or chemicals
• Carbon tetrachloride
• Halogen type refrigerants
• Cleaning solvents (such as
perchloroethylene)
• Printing inks, paint removers,
varnishes, etc.
• Hydrochloric acid
• Cements and glues
• Antistatic fabric softeners for
clothes dryers
• Masonry acid washing materials
COMBUSTION AND VENTILATION AIR
WARNING
!
FOUR ANGLE BRACKETS ARE SHIPPE WITH EACH
UNIT THAT CAN BE USE TO SECURE THE RETURN
AIR UCT TO A HORIZONTAL UNIT.
IMPORTANT: This is not a direct vent furnace. Review venting instructions
before installing.
RETURN
AIRFLOW
REAR VIEW
12

Combustion air must be free of acid
forming chemicals; such as sulphur, flu-
orine and chlorine. These elements are
found in aerosol sprays, detergents,
bleaches, cleaning solvents, air fresh-
eners, paint and varnish removers,
refrigerants and many other commercial
and household products. Vapors from
these products when burned in a gas
flame form acid compounds. The acid
compounds increase the dew point
temperature of the flue products and
are highly corrosive after they con-
dense.
ALL FURNACE INSTALLATIONS
MUST COMPLY WITH THE NATIONAL
FUEL GAS CO E AN LOCAL
CO ES TO PROVI E A EQUATE
COMBUSTION AN VENTILATION
AIR FOR THE FURNACE. FAILURE
TO O SO CAN CREATE HAZ-
AR OUS CON ITIONS RESULTING
IN PROPERTY AMAGE, BO ILY
INJURY OR EATH FROM SMOKE,
FIRE OR CARBON MONOXI E.
Combustion air requirements are deter-
mined by whether the furnace is in an
open (unconfined) area or in a confined
space such as a closet or small room.
See Figures 7 and 8.
EXAMPLE 1.
FURNACE LOCATE IN AN UNCON-
FINE SPACE
Using indoor air for combustion.
An unconfined space must have at
least 50 cubic feet for each 1,000
BTUH of the total input for all appli-
ances in the space. Here are a few
examples of the room sizes required for
different inputs. The sizes are based on
8 foot ceilings.
BTUH Minimum Sq. Feet Typical Room Size
Input With 8' Ceiling With 8' Ceiling
50,000 312 14*x24*or 18*x18*
75,000 469 15*x31*or 20*x24*
100,000 625 20*x31*or 25*x25*
125,000 833 23*x34*or 26*x30*
If the open space containing the fur-
nace is in a building with tight construc-
tion (contemporary construction), out-
side air may still be required for the fur-
nace to operate and vent properly.
Outside air openings should be sized
the same as for a confined space.
FIGURE 8
AIR FROM ATTIC/CRAWL SPACE
EXAMPLE 2.
FURNACE LOCATE IN A CONFINE
SPACE
A confined space (any space smaller
than shown above as “unconfined”)
must have openings into the space
which are located in accordance with
the requirements set forth in the follow-
ing subsections A and B. Size the open-
ings by how they are connected to the
heated area or to the outside, and by
the input of all appliances in the space.
If confined space is within a building
with tight construction, combustion air
must be taken from outdoors or area
freely communicating with the outdoors.
A. USING IN OOR AIR FOR COM-
BUSTION, ALL OF THE MO ELS
IMPORTANT:Air should not be taken
from a heated space with a fireplace,
exhaust fan or other device that may
produce a negative pressure.
If combustion air is taken from the heat-
ed area, the openings must each
have at least 100 square inches of
free area. Each opening must have
at least one square inch of free area
for each 1,000 Btuh of total input in
the space. Here are some examples
of typical openings required.
Btuh Free Area
Input Each Opening
100,000 100 Square Inches
AIR INTAKE PIPE CONNECTION
(RGPE UPFLOW/HORIZONTAL
ONLY)
A double-elbow may be installed
to top inlet air opening, BUT IS
NOT REQUIRE .This will help to
prevent accidental blockage of
the intake opening. Reference
Figure 9 for proper elbow diame-
ter.
NOTE: Inlet is specifically designed
to prevent material from being pulled
into furnace. If elbows are not used,
the intake opening must be kept
clean and free of debris.
It is also acceptable to run the
condensate drain (or refrigerant)
line access over the air intake
hole as long as a 1" minimum
clearance is maintained.
B. USING OUT OOR AIR FOR
COMBUSTION, ALL OF THE
MO ELS
IMPORTANT:Never take com-
bustion air from an attic space
that is equipped with power
ventilation.
The confined space must com-
municate with the outdoors
according to Methods 1 and 2.
The minimum air opening dimen-
sion shall not be less than 3 inch-
es. When using ducts, they shall
be of the same cross-sectional
area as the free area of the open-
ings to which they connect.
WARNING
!
13

a. One square inch for each 3000
BTUH of the total input rating of
all equipment located in the
enclosure, AN
b. Not less than the sum of the
areas of all vent connectors in the
confined space.
IMPORTANT: If the furnace is in a
location with an exhaust fan, there
must be sufficient ventilation to pre-
vent the exhaust fan from creating a
negative pressure in the room.
Combustion air openings must NOT
BE RESTRICTE in any manner.
CONSULT LOCAL CO ES FOR
SPECIAL REQUIREMENTS.
B: Method 1
Provide two permanent openings,
one located within 12 inches of the
top and one located within 12 inches
of the bottom of the enclosure. Each
opening shall communicate directly,
or by ducts, with the outdoors or
spaces (crawl or attic) that freely
communicate with the outdoors.
a. Where directly communicating
with the outdoors or where com-
municating to the outdoors
through VERTICAL UCTS, each
opening shall have a minimum
free area of 1 square inch for
each 4000 BTUH of total appli-
ance input rating in the enclosure.
Here are typical duct sizes:
b. Where communicating with out-
doors through HORIZONTAL
UCTS, each opening shall have
a minimum free area of 1 square
inch for each 2000 BTUH of total
input rating for all equipment in
the enclosure. Here are typical
duct sizes:
B: Method 2
One permanent opening, located within
12 inches of the top of the enclosure,
shall be permitted where the equipment
has clearances of at least 1 inch from
the sides and back and 6 inches from
the front of the appliance. The opening
shall directly communicate with the out-
doors or communicate through a verti-
cal or horizontal duct to the outdoors or
spaces (crawl or attic) that freely com-
municate with the outdoors and have a
minimum free area of:
VERTICAL OUT OOR AIR
OPENING IMENSIONS
BTUH Free Area Round
Input Each Opening Pipe Size
50,000 12.50 sq. inches 4”
75,000 18.75 sq. inches 5”
100,000 25.00 sq. inches 6”
125,000 31.25 sq. inches 7”
HORIZONTAL OUT OOR AIR
OPENING IMENSIONS
BTUH Free Area Round
Input Each Opening Pipe Size
50,000 25.00 sq. inches 6”
75,000 37.50 sq. inches 7”
100,000 50.00 sq. inches 8”
125,000 62.50 sq. inches 9”
FIGURE 9
COMBUSTION AIR FITTING – NON-ATTIC COMBUSTION AIR PULL, RGPE ONLY
ATTACH OPTIONAL OUBLE ELBOW TO TOP INLET AIR
OPENING TO PREVENTACCI ENTAL BLOCKAGE OF
INTAKE OPENING. THIS IS NOT A REQUIREMENT. (SEE
PREVIOUS PAGE.) SINGLE ELBOW IS ALLOWE BUT
MAY NOT PREVENT EBRIS FROM BEING ROPPE
INTO THE FURNACE.
GROUN OR
SHELF SURFACE
6" MIN.
6" MININUM
CLEARANCE
PVC
OUBLE
ELBOW
#8 SCREWS
METAL FLUE
PIPE ONLY
EXHAUST
#8 SCREWS
NOTE: PRE RILL HOLES FOR SCREWS TO PREVENT CRACKING.
14

FIGURE 10
OUTSI E AIR USING A HORIZONTAL INLET & OUTLET
FIGURE 11
COMBUSTION AIR FITTING – OPTIONAL ATTIC COMBUSTION AIR PULL, RGPE ONLY
B: Method 3, RGPE only
For the optimum in quiet operation, attic
air may be brought directly to the fur-
nace.
IMPORTANT: In applications using
Method 3 for combustion air, the attic
must be ventilated by gable or soffit
vents. See Figure 8.
It is not required to provide any per-
manent openings as described in
Method 1 or Method 2.
COMBUSTION AIR INTAKES CAN-
NOT BE TERMINATE OUTSI E.
OING SO CAN CAUSE IMPROPER
OPERATION OF THE FURNACE
If attic combustion air is used, the inlet
air opening at the furnace must be pro-
tected from accidental blockage. Install
a 90° elbow pointing horizontally at the
top of inlet air pipe. See Figure 11
(maximum of 2, 221⁄2°, 45° or 90°
elbows, allowed).
INCLU ING
HORIZONTAL IRECTION
ATTACH A 90° ELBOW TO TOP INLET AIR
OPENING TO PREVENT ACCI ENTAL BLOCKAGE
OF INTAKE OPENING.
NOTE: Maximum length of pipe that
may be used for combustion air is
10 feet with two elbows. Lengths of
more than 10 feet can result in nui-
sance pressure switch trips.
CAUTION
!
PVC
ELBOW
#8 SCREWS
#8 SCREW
METAL FLUE PIPE ONLY
10 FT. MAX.
12" MIN. FROM
TOP OF INSULATION
6" MINIMUM
CLEARANCE
PVC
COUPLER
EXHAUST
ATTIC SPACE
IN OOR SPACE
INSULATION
CAUTION
!
USE OF SHEET METAL
AIR INTAKE PIPE
INSTEA OF PVC MAY
RESULT IN NOISE ISSUES.
NOTE: PRE RILL HOLES FOR SCREWS TO PREVENT CRACKING.
15

16
GENERAL INFORMATION
The furnace must be vented in accor-
dance with these instructions, National
Fuel Gas Code, ANSI Z223.1 and/or
the Natural Gas Installation Code, CSA-
B149.1 & .2 and requirements or codes
of the local utility or other authority hav-
ing jurisdiction.
EVICES ATTACHE TO THE FLUE
OR VENT FOR THE PURPOSE OF
RE UCING HEAT LOSS UP THE
CHIMNEY HAVE NOT BEEN TESTE
AN HAVE NOT BEEN INCLU E IN
THE ESIGN CERTIFICATION OF
THIS FURNACE.WE,THE MANUFAC-
TURER, CANNOT AN WILL NOT BE
RESPONSIBLE FOR INJURY OR
AMAGE CAUSE BY THE USE OF
SUCH UNTESTE AN /OR UNCER-
TIFIE EVICES, ACCESSORIES OR
COMPONENTS.
DRAFT INDUCER
VENT PIPE ATTACHING HOLES
MUST BE PRE RILLE IN THE
RAFT IN UCER COLLAR TO PRE-
VENT AMAGING THE IN UCER.
RILL 1/8”IAMETER HOLES
THROUGHTHE VENT PIPE AN
COLLAR AN USE #8 SCREWS TO
ATTACH. SEE FIGURE 12. FAILURE
TO FOLLOW THIS WARNING CAN
CAUSE RECIRCULATION OF FLUE
PRO UCTS CAUSING CARBON
MONOXI E POISONING RESULTING
IN PERSONAL INJURY OR EATH.
IMPORTANT APPLICTION
NOTES
When the furnace is used as a
replacement, the existing vent sys-
tem should be inspected to assure
that there are no obstructions, block-
age, or any signs of corrosion and is
properly sized for use with this fur-
nace.
NOTE: When the vent table permits
more than one diameter of pipe for a
connector or vent, the smallest per-
mitted diameter must be used.
Vent pipe may be type “B-1,” either
rigid or suitable flexible construction
that carries a u.l. listing.
Common venting is allowed with
vertical B-1 vent systems, and lined
masonry chimneys. Follow the
National Fuel Gas Code, ANSI
Z223.1 and/or the Natural Gas
Installation Code, CSA-B149.1 & .2
for proper installation practices.
NOTE: Follow combustion air
instructions as outlined in this manu-
al.
Single wall vent connectors to “B-1
vent or masonry chimneys” may be
used under the guidelines of the
National Fuel Gas Code, ANSI
Z223.1 and/or the Natural Gas
Installation Code, CSA-B149.1 & .2.
The entire length of the vent con-
nector shall be readily accessible
for inspection, cleaning and
replacement.
WARNING
!
WARNING
!
FURNACE CATEGORY
INFORMATION
This furnace is shipped as a Category I
type induced draft furnace. A Category
Ifurnace operates with a nonpositive
vent pressure and has a vent gas tem-
perature at least 140°F above the dew
point of the vent gases. A Category I
type may be a draft hood equipped fur-
nace or have a fan assisted combustion
system (induced draft). The inducer is
used to pull flue products through the
combustion chamber and as they leave
the furnace, most of the energy has
been dissipated. The buoyant effect of
the flue gases provides venting to the
outdoors.
uring the off cycle, the inducer is off
and there is very little flow through the
vent, cooling the vent. uring the on
cycle there is no dilution airflow, as with
a draft hood type furnace. Although the
vent heats up rapidly without dilution
air, the flue products contain more
water vapor, which results in a higher
dew point temperature. It is most
important that you follow the guide-
lines in these instructions to prevent the
possible formation of condensation in
the venting system.
As a Category Ifurnace it may be vent-
ed vertically with type B-1 vent pipe and
also may be common vented, as
described in these instructions.
FIGURE 12
ATTACHING TO RAFT IN UCER COLLAR
VENTING
A0991-01

17
“B-1” VERTICAL VENTING
Type “B-1” vents must be installed in
accordance with the terms of their list-
ings and the vent manufacturer’s
instructions.
“B-1” vents must be supported and
spaced in accordance with their listings
and the manufacturer’s instructions. All
vents must be supported to maintain
their minimum clearances from com-
bustible material.
VERTICAL VENTING
Categorized
Furnace Vent
Input Size Required
50K 3”
75K *4”
100K *4”
125K *5”
*NOTE: All furnaces have a 3” vent connec-
tion as shipped from the factory. A 3” to 4” or
3” to 5” vent transition is required on all but
the 50,000 BTUH models when vertically
vented or common vented with metal vent
pipes. THE VENT TRANSITION CONNEC-
TION MUST BE MA E AT THE FURNACE
VENT EXIT. It must originate with an adapter
if required, at the furnace flue collar and ter-
minate either in a listed cap or roof assem-
bly. When common venting, the vent con-
nector size may differ from the above diame-
ters depending on application. See ANSI
Z21.47-1993/CSA-2.3-M93 or latest edition
tables.
VERTICAL VENT SYSTEMS:
1. A gas vent shall terminate above the
roof surface with a listed cap or listed
roof assembly. Gas vents 12 inches
in size or smaller with listed caps
shall be permitted to be terminated in
accordance with Figure 13, provided
they are at least 8 feet from a vertical
wall or similar obstruction. All other
gas vents shall terminate not less
than 2 feet above the highest point
where they pass through the roof and
at least 2 feet higher than any portion
of a building within 10 feet.
2. A type B-1 gas vent shall terminate
at least 5 feet in vertical height above
the highest connected equipment
draft hood or flue collar.
3. Must rise 1/4” per foot away from the
furnace on horizontal runs and be
supported with straps or hangers so
it has no sags or dips. Supports at 4
foot intervals and at all elbows are
recommended.
4. The vent connector must be mechan-
ically fastened to the outlet collar of
the furnace with at least (2) sheet
metal screws except vent connectors
that are B-1 material. These shall be
assembled in accordance with the
manufacturer’s instructions. See
Figure 12.
O NOT CONNECT THIS FUR-
NACE TO A CHIMNEY USE TO
VENT A SOLI FUEL APPLIANCE
(WOO OR COAL).VENTING
WITH A SOLI FUEL APPLIANCE
CAN LEA TO IMPROPER FUNC-
TIONING OF THE UNIT, AN UE
TO SOOTING,THE POSSIBILITY
OF FIRE RESULTING IN PROPER-
TY AMAGE, PERSONAL INJURY
OR EATH.
SPECIAL VENT SYSTEMS
(SVS)
IMPORTANT: It is THE FURNACE
ANUFACTURER’s position now
that new installations of any HTPV
pipe used in a category III vent
application, including Selkirk’s
Selvent™ II HTPV product, should
cease immediately.
5. Any angle greater than 45 degrees
from the vertical is considered hori-
zontal. The total horizontal distance
of a vent plus the horizontal vent
connector serving draft-hood
equipped appliances shall not be
greater than 75 percent of the verti-
cal height of the vent.
NOTE: Refer to the National Fuel Gas
Code, ANSI Z223.1 and/or the Natural
Gas Installation Code,
CSA-B149.1 & .2.
Single appliance venting of a fan assist-
ed furnace into a tile-lined masonry
chimney is prohibited. The chimney
must be lined with either Type B vent or
with a listed, single wall, metal lining
system. Reference National Fuel Gas
Code, ANSI Z223.1 and/or the Natural
Gas Installation Code, CSA-B149.1 &
.2. See Figure 14 for typical B-1 vent
chase.
FIGURE 13
TYPICAL VENTING WITH “B-1”VENT
WARNING
!

EXISTING VENT SYSTEMS
IMPORTANT RETROFIT
VENTING INSTRUCTIONS
If this furnace is a replacement installa-
tion, ALWAYS INSPECT the existing
vent system to be sure there are no
obstructions, blockages, or signs of cor-
rosion.
When the existing furnace is removed
from a venting system serving other
appliances, the venting is likely to be
too large to properly vent the remaining
attached appliances.
The following steps shall be followed
with each appliance that remains con-
nected to the common venting system,
while the other appliances that remain
connected to the common venting sys-
tems are not in operation.
NOTE:When the vent table permits
more than one diameter of pipe for a
connector or vent, the smallest per-
mitted diameter must be used.
1. Seal any unused openings in the
common venting system.
2. Visually inspect the venting system
for proper size and horizontal pitch
and determine that there is no block-
age, restriction, leakage, corrosion or
other deficiencies which could cause
an unsafe condition.
3. Insofar as is practical, close all build-
ing doors, windows and all doors
between the space where the appli-
ances remaining connected to the
common venting system are located.
FIGURE 14
E ICATE VENTING THROUGH
CHIMNEY WITH “B-1”VENT
Turn on clothes dryers and any
appliance not connected to the
common venting system. Turn on
any exhaust fans, such as range
hoods and bathroom exhausts, so
they will operate at maximum
speed. o not operate a summer
exhaust fan. Close fireplace
dampers.
4. Follow the lighting instructions.
Place the appliance being
inspected into operation. Adjust
the thermostat so the appliance
will operate continuously.
5. Test for spillage at the draft hood
relief opening after 5 minutes of
main burner operation. Use the
flame of a match or candle, or
smoke from a cigarette, cigar, or
pipe.
6. After it has been determined that
each appliance that remains con-
nected to the common venting
system properly vents (when test-
ed as outlined above) return
doors, windows, exhaust fans,
fireplace dampers and any other
gas-burning appliance to their
previous conditions of use.
7. If improper venting is observed
during any of the above tests, the
common venting system must be
resized. Refer to National Fuel
Gas Code, ANSI Z223.1 and/or
the Natural Gas Installation Code,
CSA-B149.1 & .2.
POWER VENT SYSTEMS
When vertical venting is not possible,
the only acceptable method for horizon-
tal venting is with the use of Tjernlund
model GPAK-1TR or Field Controls
models SWG-4R power venter. Type B
vent pipe and fittings must be used.
Common venting is not permitted
All application and installation
instructions supplied with the power
venter must be followed.
Please address all questions regarding
power venter installation, agency list-
ings and furnace model compatibility to:
Tjernlund Products, Inc.
[phone] or [phone]
Field Controls L.L.C.
[phone] or [phone]
RXGW-B01 CHIMNEY
ADAPTER
IMPORTANT: CHI NEY ADAPTER IS
CERTIFIED FOR USE ON UPFLOW
(RGPE) ONLY.
This appliance is CSA certified for use
with RXGW-B01 Chimney Adapter.
Refer to Kit Installation Instructions
92-101682-01.
18

FIGURE 15
GAS PIPING INSTALLATION GAS PIPE INSTALLATION
GAS SUPPLY AND PIPING
GAS SUPPLY
THIS FURNACE IS EQUIPPE AT THE
FACTORY FOR USE ON NATURAL
GAS ONLY. CONVERSIONTO LP GAS
REQUIRES A SPECIAL KIT AVAIL-
ABLE FROM THE ISTRIBUTOR.
FAILURETO USETHE PROPER CON-
VERSION KIT CAN CAUSE FIRE,
CARBON MONOXI E POISONING,
EXPLOSION, PROPERTY AMAGE,
PERSONAL INJURY OR EATH.
See the conversion kit index supplied
with the furnace.This index identifies
the proper LP Gas Conversion Kit
required for each particular furnace.
IMPORTANT:Any additions, changes or
conversions required for the furnace to
satisfactorily meet the application should
be made by a qualified installer, service
agency or the gas supplier, using facto-
ry-specified or approved parts. In the
commonwealth of assachusetts,
installation must be performed by a
licensed plumber or gas fitter for appro-
priate fuel.
IMPORTANT:Connect this furnace only
to gas supplied by a commercial utility.
IMPORTANT:A U.L. recognized
fuel gas and CO detector(s) are recom-
mended in all applications,
and their installation should be in accor-
dance with the detector manufacturer’s
recommendations and/or local laws,
rules, regulations or customs.
GAS PIPING (SEE FIGURE 15)
Install the gas piping according to all
local codes, state codes and regulations
of the utility company, whichever holds
jurisdiction.
If possible, run a separate gas supply
line directly from the meter to the fur-
nace. Consult the local gas company for
the location of the manual main shut-off
valve.The gas line and manual gas
valve must be adequate in size to
prevent undue pressure drop and
never smaller than the pipe size to
the combination gas valve on the fur-
nace. Refer to Table 2 for the recom-
mended pipe size for natural gas and
Table 3 for LP gas pipe sizes.
IMPORTANT:It is permissible to run
flexible gas connector inside the unit to
a piece of black pipe. If local codes
!WARNING
allow the use of a flexible gas appliance
connector, always use a new listed con-
nector. Do not use a connector which
has previously serviced another gas
appliance. assachusetts law limits flex-
ible gas connectors to a maximum of
36”.
Install a ground joint union outside
the cabinet to easily remove the con-
trol valve assembly. Install a manual
shut-off valve in the gas line outside
the cabinet. The valve should be readi-
ly accessible to turn the gas supply on
or off. Install a drip leg in the gas supply
line as close to the furnace as possible.
Always use a pipe compound resistant
to the action of liquefied petroleum
gases on all threaded connections.
IMPORTANT: When making gas
pipe connections, use a back-up
wrench to prevent any twisting of the
control assembly and gas valve. Do
not overtighten the connection.
Any strains on the gas valve can
change the position of the gas ori-
fices in the burners. This can cause
erratic furnace operation.
IMPORTANT:ENSURE that the fur-
nace gas control valve not be sub-
jected to high gas line supply pres-
sures.
ISCONNECT the furnace and its
individual shut-off valve from the gas
supply piping during any pressure
testing that exceeds 1/2 PSIG (14”
W.C.) (3.48 kPa).
GAS VALVE
MANIFOL
MANIFOL
FLAME SENSOR
FLAME
SENSOR
BURNERS
BURNERS
IRECT SPARK
IGNITOR
IRECT SPARK IGNITOR
MANUAL GAS VALVE (IN CLOSE POSITION)
UNION
UCT
UNION
RIP LEG
RIP LEG
4 TO 5 FEET
ABOVE FLOOR
REQ' BY SOME
UTILITIES
4 TO 5 FEET
ABOVE FLOOR
REQ' BY SOME
UTILITIES
UPFLOW & OWNFLOW
HORIZONTAL
MANUAL GAS VALVE
(IN CLOSE POSITION)
GAS VALVE
19

LP CONVERSION
NOTE: For installation, see specific LP
kit installation instructions. Orifice must
be ordered for the correct elevation.
NOTE: Order the correct LP conversion
kit from the local distributor. Furnace
conversion to LP gas must be per-
formed by a qualified technician.
More information found in the high alti-
tude and orifice section.
GAS PRESSURE
IMPORTANT: Natural gas supply pres-
sure should operate between 5" to
10.5”w.c. LP gas supply pressure
should be 11”to 13”w.c. This pressure
must be maintained with all other
gas-fired appliances in operation.
NOTE: o not exceed a gas pressure
of 13” w.c.
ELEVATIONS ABOVE 2000 FT
REQUIRETHAT THE FURNACE INPUT
RATING BE A JUSTE AN THAT
THE SIZE OF THE BURNER ORI-
FICES BE RE-CALCULATE BASE
ON ELEVATION AN GAS HEATING
VALUE.THE BURNER ORIFICES MAY
(OR MAY NOT) NEE TO BE
CHANGE . SEETHE SECTION
TITLE “HIGH ALTITU E INSTALLA-
TIONS” OF THIS BOOK FOR
INSTRUCTIONS.
NEVER PURGE A GAS LINE INTO
THE COMBUSTION CHAMBER.
NEVER USE MATCHES, FLAME OR
ANY IGNITION SOURCE FOR
CHECKING LEAKAGE. FAILURE TO
FOLLOW THIS WARNING CAN
CAUSE AN EXPLOSION OR FIRE
RESULTING IN PROPERTY AMAGE,
PERSONAL INJURY OR EATH.
To check for gas leakage, use an
approved chloride-free soap and water
solution, or other approved method.
NOx MODELS
When converting furnaces equipped
with NOx inserts to LP gas, remove
the NOx insert assemblies. Steps for
removal are listed below:
1. Turn off all electrical power and
the gas supply to the furnace.
2. Remove the burner door from
the furnace.
3. Remove the igniter assembly –
handle with care.
4. Remove the two screws attach-
ing the NOx insert retainer
brackets to the center panel.
Pull the retainer rod.
5. Put the two screws back into the
holes in the center panel.
6. Re-install the igniter and burner
assemblies.
7. Replace burner door.
8. Turn on electrical power and
gas supply to the unit.
NOTE: Some NOx models may have
one less NOx insert.
!WARNING
!WARNING
20