Rheem 95P series User manual

ISO 9001:2008
INSTALLATION INSTRUCTIONS
FOR 4 POSITION CONDENSING SINGLE STAGE
SINGLE-STAGE GAS FURNACES
(-)95P SERIES
& (-)(-)95MSP SERIES
U.L. and/or C.S.A. recognized fuel gas and CO (carbon monoxide) detectors are rec-
ommended in all applications, and their installation should be in accordance with the
manufacturer’s recommendations and/or local laws, rules, regulations, or customs.
92-24161-111-14
SUPERSEDES 92-24161-111-13

2
Contents
TABLE OF CONTENTS
1 TABLE OF CONTENTS. . . . . . . . . . . . . . . . . . . . . . . 2
2 GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . 3
Receiving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
California Proposition 65 Note . . . . . . . . . . . . . . . . . . 4
Efficiency Testing Notice. . . . . . . . . . . . . . . . . . . . . . . 4
Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 SAFETY INFORMATION. . . . . . . . . . . . . . . . . . . . . . 6
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Important Information About Efficiency and Quality. . 7
Commonwealth of Massachusetts Note . . . . . . . . . . 8
4 LOCATION REQUIREMENTS . . . . . . . . . . . . . . . . . 9
Freeze Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Site Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Clearance Accessibility. . . . . . . . . . . . . . . . . . . . . . . 10
Clearance Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5 FIELD CONVERSION . . . . . . . . . . . . . . . . . . . . . . . 12
General Conversion Instructions and Tips. . . . . . . . 12
Lists of Materials for Parts Bag and
Conversion Kits. . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Conversion Table of Contents . . . . . . . . . . . . . . . . . 14
Upflow with Vertical Vent. . . . . . . . . . . . . . . . . . . 15-16
Upflow with Left Side Vent . . . . . . . . . . . . . . . . . 17-18
Downflow with Right Vent (Non Zero Clearance) 19-22
Downflow Zero-Clearance . . . . . . . . . . . . . . . . . 23-27
Horizontal Right with Right Vent . . . . . . . . . . . . . 29-30
Horizontal Right with Vertical Vent . . . . . . . . . . . 31-33
Horizontal Left with Right Vent . . . . . . . . . . . . . . 34-38
Horizontal Left with Left Vent . . . . . . . . . . . . . . . 39-41
6 DUCTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
7 VENTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
General Venting Requirements and Guidelines
(All Instructions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Venting and Combustion Air Piping
Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Piping Requirements . . . . . . . . . . . . . . . . . . . . . . 48
Vent Pipe Sizing and Maximum Lengths . . . . . . . 48
Equivalent Vent Length. . . . . . . . . . . . . . . . . . . . . 49
Polypropylene Vent Products . . . . . . . . . . . . . . . . 50
Termination Requirements . . . . . . . . . . . . . . . . . . 51
Non-Direct Venting . . . . . . . . . . . . . . . . . . . . . . . . . 52
Non-Direct Venting in an Unconfined Space . . . . 52
Non-Direct Venting in a Confined Space . . . . . . . 52
Non-Direct Venting Termination . . . . . . . . . . . . . . 55
Non-Direct Venting Termination Clearances . . . . 57
Direct Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Option 1: Standard Vertical Direct Vent
Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Option 2: Standard Horizontal Direct Vent
Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Option 3: Variant of Standard Horizontal
Direct Vent Termination . . . . . . . . . . . . . . . . . . . 60
Option 4: Alternate Horizontal Direct Vent
Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Option 5: Variant of Alternate Horizontal
Direct Vent Termination . . . . . . . . . . . . . . . . . . . 61
Optional Termination Angles for Alt.
Horizontal and Variant of Alt. Horizontal
Direct-Vent Terminations (Options 4 and 5) . . . 62
Option 6 & 7: Vertical and Horizontal
Concentric Vent Termination (RXGY-E02A and
RXGY-E03A) . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Options 8 & 9: Sidewall Vent Kit for Direct Vent
Termination (RXGY-G02 & RXGY-G01) . . . . . . 64
Direct Venting Termination Clearances . . . . . . . . 65
Multiventing of Direct Vent Furnaces . . . . . . . . . . 66
8 CONDENSATE DRAIN AND DRAIN
NEUTRALIZER . . . . . . . . . . . . . . . . . . . . . . . . . . 67
9 GAS SUPPLY AND PIPING
Gas Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
10 LP CONVERSION . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Setting the Gas Pressure . . . . . . . . . . . . . . . . . . . . . 75
11 ELECTRICAL WIRING . . . . . . . . . . . . . . . . . . . . . . 76
Reversing the Electrical Connection . . . . . . . . . . . . 76
Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
12 ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Electronic Air Cleaner . . . . . . . . . . . . . . . . . . . . . . . . 78
Humidifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
13 TWINNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
14 HIGH ALTITUDE . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Natural Gas at High Altitudes . . . . . . . . . . . . . . . . . . 83
LP Gas at High Altitudes. . . . . . . . . . . . . . . . . . . . . . 85
15 STARTUP PROCEDURE . . . . . . . . . . . . . . . . . . . . 86
Sequence of Operations. . . . . . . . . . . . . . . . . . . . . . 86
16 DIAGNOSTICS AND FAULT CODES . . . . . . . . . . . 87
17 LOCKOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
18 FIELD SELECTIONS – DIPSWITCHES . . . . . . . . . 89
19 FAULT CLEAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
20 FAULT RECALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
21 FLAME STATUS L.E.D. . . . . . . . . . . . . . . . . . . . . . . 90
22 TIMING DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . 90
23 ADJUSTING OR CHECKING FURNACE INPUT . 91
24 SETTING INPUT RATE . . . . . . . . . . . . . . . . . . . . . . 92
25 AIRFLOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Blower Speed Selection . . . . . . . . . . . . . . . . . . . . . . 94
26 MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
27 SYSTEM OPERATION INFO . . . . . . . . . . . . . . . . . 96
28 ANNUAL INSPECTION . . . . . . . . . . . . . . . . . . . . . . 96
29 REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . 96
30 TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . 96
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . 97
31 WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . 98

3
General Information
GENERAL INFORMATION
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3
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15
17
5
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19
2
1
5
6
9
8
7
11
10
12
14
24
ITEM
NO. DESCRIPTION
1 CONDENSATE TRAP
2 DOOR SWITCH
3 JUNCTION BOX
4 TRANSFORMER
5 WATER SENSOR (2)
6 MAIN PRESSURE SWITCH
7 EXHAUST TRANSITION
8 COUPLING (ELBOW TO TRANSITION)
9 EXHAUST
10 SHIPPING PLUG
11 FLAME SENSOR
12 OVER TEMPERATURE SWITCH
13 TOP PLATE
14 BURNER
15 IGNITER
16 COMBUSTION AIR INLET
17 GAS VALVE
18 INDUCED DRAFT BLOWER (IDB)
19 CAPACITOR
20 CONTROL MOUNTING PLATE
21 BLOWER
22 LOW VOLTAGE TERMINAL
23 COUPLING (IDB TO ELBOW)
24 FURNACE CONTROL
ST-A1194-02-XO
FIGURE 1
FURNACE COMPONENTS
NOTE: A heat loss calculation should be performed to
properly determine the required furnace BTU size for the
structure. Also, the duct must be properly designed and in-
stalled for proper airflow. Existing ductwork must be in-
spected for proper size and to make sure that it is properly
sealed. Proper airflow is necessary for both user comfort
and equipment performance.
Before opening the furnace carton, verify that the data
tags on the carton specify the furnace model number
that was ordered from the distributor and are correct for
the installation. If not, return the unit without opening the
carton. If the model number is correct, open the carton
and verify that the furnace rating label specifies the
same furnace model number that is specified on the car-
ton label. If the model numbers do not match, return the
furnace to the distributor.
IMPORTANT: Proper application, installation and mainte-
nance of this furnace and system is a must if consumers are
to receive the full benefits for which they have paid.
The (-)95P and (-)(-)95MSP series furnaces are design-
certified by CSA for use with natural and propane gases as
follows:
1. As non-direct vent central forced air furnaces taking
combustion air from the installation area or using air
ducted from the outside.
2. As direct vent central forced air furnaces with all com-
bustion air supplied directly to the furnace burners
through a special air intake system outlined in these in-
structions.Install this furnace in accordance with the
American National Standard Z223.1 – latest edition enti-
tled “National Fuel Gas Code” (NFPA54) or, for Canada,
CSA B149.1; Canadian Natural Gas and Propane In-
stallation Code and requirements or codes of the local
utilities or other authorities having jurisdiction. This is
available from the following:
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
CSA-INTERNATIONAL
5060 Spectrum Way
Mississauga, Ontario
Canada L4W5N6
Online: www.csa.ca

4
In Canada installations must comply with CSA B149.1.
Install units in Canada in accordance with CSA-B149, local
installation codes and authorities having jurisdiction. CSA-
B149.1 is available from:
CSA INTERNATIONAL
5060 Spectrum Way
Mississauga, Ontario
Canada L4W 5N6
online: www.csa.ca
NOTICE: Any equipment immersed in water (including by
flooding) must be replaced. Equipment and products im-
mersed in water will have operation adversely affected
thereby voiding the warranty.
RECEIVING
Immediately upon receipt, all cartons and contents should
be inspected for transit damage. Units with damaged car-
tons 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 to be sure equipment
matches job specifications.
• Read the entire instructions before starting the installa-
tion.
• Install the unit in such a way as to allow necessary ac-
cess for service.
• Always remove the solid metal base pan from the top of
the furnace. The base pan is installed in this location for
shipping purposes only and should never remain in the
as-shipped location after installation.
• Install the unit with a 1/4” to 1/2” forward slope (toward
front) to ensure proper drainage.
• 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 pub-
lications are:
• ANSI/NFPA No. 70-(Latest Edition) National Electrical
Code.
• NFPA90A Installation of Air Conditioning and Ventilat-
ing Systems.
• NFPA90B Installation of warm air heating and air con-
ditioning systems.
• In Canada CSA 22.2 Canadian Electrical Code.
• In Canada CSA B149.1; Canadian Natural Gas and
Propane Installation Code.
CALIFORNIA RESIDENTS ONLY
IMPORTANT: All manufacturer products meet current Fed-
eral OSHA Guidelines for safety. California Proposition 65
warnings are required for certain products, 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
facilitates manufacturing and shipping. We cannot always
know “when, or if” products will be sold in the California
market.
You may receive inquiries from customers about chemicals
found in, or produced by, some of our heating and air-con-
ditioning equipment, or found in natural gas used with some
of our products. Listed below are those chemicals and sub-
stances 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 (Occu-
pational 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 consumers are aware that products present
safety and health risks, when improperly used, handled and
maintained.
EFFICIENCY TESTING NOTICE
For purposes of verifying or testing efficiency ratings, the
test procedure in Title 10 APPENDIX N to Subpart B of
Part 430 (Uniform Test Method for Measuring the Energy
Consumption of Furnaces and Boilers) and the clarifying
provisions provided in the AHRI Operations Manual for
Residential Furnaces that were applicable at the date of
manufacture should be used for test set up and perform-
ance.
General Information
GENERAL INFORMATION (cont.)

5
Installation Checklist
REFER TO INSTALLATION INSTRUCTIONS
GAS SUPPLY
______ Correct pipe size (record size)
______ Correct supply pressure (during furnace operation)
______ (record pressure)
______ Manifold pressure (record upstream pressure)
______ No gas leaks
______ L.P. Kit Number (if applicable) (record kit number)
ELECTRICAL
______ 115 V.A.C. supply (Dedicated Circuit)
(record voltage)
______ Polarity observed
______ Furnace properly grounded
______ Correct wire size (record type and gauge)
FURNACE INSTALLATION
______ Correct clearance to combustibles (record
______ clearance)
______ Correct clearance for service (at front) (record
______ clearance)
DUCT STATIC PRESSURE
______ in. w.c. on heating speed (record static pressure)
______ in. w.c. on cooling speed (record static pressure)
______ Air temperature rise in heat (record air temperature
______ rise)
______ Air temperature rise in cool (record air temperature
______ rise)
CONDENSATE LINE
______ Trap filled with water
______ Vented
______ Sloped toward drain
______ Condensate drain line hoses connected and
______ clamped
______ Freeze protection (if necessary)
VENTING – DIRECT VENT
______ in. diameter – intake pipe (record diameter)
______ in. diameter – exhaust pipe (record diameter)
______ ft. of pipe – intake air (record length)
______ no. of elbows – intake air (record number of
______ elbows)
______ ft. of pipe – exhaust pipe (record length)
______ no. of elbows – exhaust pipe (record number of
______ elbows)
______ Exhaust Vent Temperature (record temperature)
TERMINATIONS – DIRECT VENT
VERTICAL
______ Intake – 12" [305mm] min. above roof/snow level
(record height above anticipated snow level)
or, in Canada, intake and exhaust vents conform
with CSA B149.1; Canadian Natural Gas and
Propane Installation Code
______ Correct relationship – exhaust to intake
HORIZONTAL/VERTICAL – CONCENTRIC (RXGY-E03A)
______ Intake – 12" [305mm] min. above roof/snow level
(record height above anticipated snow level)
or, in Canada, intake and exhaust vents conform
with CSA B149.1; Canadian Natural Gas and
Propane Installation Code
______ Exhaust sloped down toward furnace
______ Correct distances (horizontal and vertical) –
exhaust to intake
______ 12" [305mm] min. above grade/snow level (record
height above anticipated snow level) or, in
Canada, intake and exhaust vents conform
with CSA B149.1; Canadian Natural Gas and
Propane Installation Code
______ Above anticipated snow level (record maximum
______ anticipated snow level)
VENTING – NON-DIRECT VENT
______ in. diameter – exhaust pipe (record diameter)
______ ft. of pipe – exhaust (record length)
______ no. of elbows (record number of elbows)
TERMINATION – NON-DIRECT VENT
VERTICAL
______ 12" [305mm] min. above roof/snow level (record
height above anticipated snow level) or, in
Canada, intake and exhaust vents conform
with CSA B149.1; Canadian Natural Gas and
Propane Installation Code
HORIZONTAL – STANDARD
______ 12" [305mm] min. above grade/snow level (record
height above anticipated snow level) or, in
Canada, intake and exhaust vents conform
with CSA B149.1; Canadian Natural Gas and
Propane Installation Code
General Information
Installation Instructions remain with the furnace as a reference guide to the servicing contractor. We recommend
that performance and installation data be recorded for future reference on this sheet to meet service and warranty
obligations so that job site information is available when required.

6
Safety Information
!WARNING
DO NOT INSTALL THIS FURNACE IN A MOBILE HOME!!
THIS FURNACE IS NOT APPROVED FOR INSTALLATION
IN A MOBILE HOME. DOING SO COULD CAUSE FIRE,
PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
!WARNING
INSTALL THIS FURNACE ONLY IN A LOCATION AND PO-
SITION AS SPECIFIED IN THE LOCATION REQUIRE-
MENTS AND CONSIDERATIONS SECTION OF THESE
INSTRUCTIONS.
!WARNING
IMPROPER INSTALLATION, OR INSTALLATION NOT
MADE IN ACCORDANCE WITH THE CSA INTERNATIONAL
(CSA) CERTIFICATION OR THESE INSTRUCTIONS, CAN
RESULT IN UNSATISFACTORY OPERATION AND/OR DAN-
GEROUS CONDITIONS AND ARE NOT COVERED BY THE
MANUFACTURER’S WARRANTY.
SAFETY INFORMATION
!WARNING
DO NOT BYPASS, JUMPER, OR REMOVE ANY SAFETY
SWITCH FROM THE FURNACE CONTROL CIRCUIT. IF A
SAFETY SWITCH CAUSES THE FURNACE TO SHUT
DOWN OR OPERATE INTERMITTENTLY, IT IS AN INDICA-
TION OF A POTENTIAL SAFETY HAZARD THAT MUST BE
ADDRESSED BY A QUALIFIED TECHNICIAN, SERVICE
AGENCY OR THE GAS SUPPLIER. DO NOT RESET
SAFETY CONTROLS WITHOUT CORRECTIVE ACTION
AND/OR VERIFICATION OF PROPER SAFE OPERATION
BY A QUALIFIED INSTALLER, SERVICE AGENCY OR THE
GAS SUPPLIER.
REPLACE ANY SAFETY CONTROL COMPONENT ONLY
WITH IDENTICAL OEM REPLACEMENT PARTS. WHEN A
NEW SAFETY SWITCH IS INSTALLED, IT MUST BE
TESTED FOR A MINIMUM OF 15 MINUTES WITH THE
FURNACE OPERATING AT MAXIMUM INPUT RATE AND
WITH BOTH BLOWER AND BURNER DOOR INSTALLED.
IF THE FURNACE IS INSTALLED IN A CLOSET, THE
CLOSET DOOR MUST ALSO BE CLOSED FOR THIS
TEST. REPEAT THE TEST AT THE MINIMUM INPUT RATE
IF THE FURNACE IS A MULTI-STAGE FURNACE.
!WARNING
USE ONLY WITH THE TYPE OF GAS APPROVED FOR
THIS FURNACE. REFER TO THE FURNACE RATING
PLATE.
!WARNING
NEVER TEST FOR GAS LEAKS WITH AN OPEN FLAME.
USE A COMMERCIALLY AVAILABLE SOAP SOLUTION
MADE SPECIFICALLY FOR THE DETECTION OF LEAKS
TO CHECK ALL CONNECTIONS, AS SPECIFIED IN GAS
SUPPLY AND PIPING SECTION OF THESE INSTRUC-
TIONS.
!WARNING
COMBUSTION AND VENTILATION AIR MUST BE PRO-
VIDED TO THE FURNACE AS REQUIRED BY THE NA-
TIONAL FUEL-GAS CODE (U.S.) AND CSA B149.1
(CANADA) AND THE COMBUSTION AND VENTILATION
AIR SECTION OF THESE INSTRUCTIONS.
!
WARNING
COMBUSTION PRODUCTS MUST BE DISCHARGED OUT-
DOORS. CONNECT THIS FURNACE TO AN APPROVED
VENT SYSTEM ONLY, AS SPECIFIED IN THE VENT PIPE
INSTALLATION SECTION OF THESE INSTRUCTIONS.
!WARNING
WHEN A FURNACE IS INSTALLED SO THAT SUPPLY
DUCTS CARRY AIR CIRCULATED BY THE FURNACE TO
AREAS OUTSIDE THE SPACE CONTAINING THE FUR-
NACE, THE RETURN AIR SHALL ALSO BE HANDLED BY
DUCT(S) SEALED TO THE FURNACE CASING AND TERMI-
NATING OUTSIDE THE SPACE CONTAINING THE FUR-
NACE.
!WARNING
WHENEVER THE FACTORY RETURN-AIR CONNECTION
IS NOT USED IT MUST BE SEALED. A SOLID METAL
BASE PLATE MUST BE INSTALLED AND SEALED. FAC-
TORY BASE PLATES ARE AVAILABLE AS ACCESSORY
ITEMS. (PART NUMBERS ARE LISTED IN THE SPEC
SHEET FOR THE FURNACE.) FAILURE TO INSTALL AND
SEAL THE BASE PLATE AND RETURN AIR DUCT CON-
NECTIONS MAY ALLOW CARBON MONOXIDE AND
OTHER CONTAMINANTS TO BE DRAWN INTO THE CON-
DITIONED AIR SPACE AND DISTRIBUTED THROUGHOUT
THE HEATED SPACE.
!WARNING
DO NOT OPERATE THE SYSTEM WITHOUT FILTERS. A
PORTION OF THE DUST ENTRAINED IN THE AIR MAY
TEMPORARILY LODGE IN THE AIR DUCT RUNS AND AT
THE SUPPLY REGISTERS. ANY CIRCULATED DUST PAR-
TICLES WILL BE HEATED AND CHARRED BY CONTACT
WITH THE FURNACE HEAT EXCHANGER. THIS SOOTY
RESIDUE WILL SOIL CEILINGS, WALLS, DRAPES, CAR-
PETS AND OTHER HOUSEHOLD ARTICLES. SOOT DAM-
AGE MAY ALSO RESULT WITH, OR WITHOUT, FILTERS IN
PLACE, WHEN CERTAIN TYPES OF CANDLES ARE
BURNED, OR CANDLEWICKS ARE LEFT UNTRIMMED.
!WARNING
IN COMPLIANCE WITH RECOGNIZED CODES, IT IS REC-
OMMENDED THAT AN AUXILIARY DRAIN PAN BE IN-
STALLED UNDER THIS FURNACE AND ANY INSTALLED
EVAPORATOR COIL THAT IS LOCATED IN ANY AREA OF
A STRUCTURE WHERE DAMAGE TO THE BUILDING OR
BUILDING CONTENTS MAY OCCUR AS A RESULT OF AN
OVERFLOW OF THE FURNACE CONDENSATE DISPOSAL
SYSTEM OR THE COIL DRAIN PAN OR A STOPPAGE IN
THE PRIMARY CONDENSATE DRAIN PIPING.

7
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
supplied to each room and the air returning to the cooling
and heating equipment.
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 reduc-
ing the amount of airborne pollutants that enter homes
from spaces where the ductwork and / or equipment is lo-
cated. The manufacturer and the U.S. Environmental Pro-
tection Agency’s Energy Star Program recommend that
central duct systems be checked by a qualified contractor
for proper balance and sealing.
Safety Information
SAFETY
!WARNING
ALWAYS INSTALL THE FURNACE TO OPERATE WITHIN
THE FURNACE’S INTENDED TEMPERATURE-RISE
RANGE WITH A DUCT SYSTEM WHICH HAS AN EXTER-
NAL STATIC PRESSURE WITHIN THE ALLOWABLE
RANGE, AS SPECIFIED IN THE DUCTING SECTION OF
THESE INSTRUCTIONS. SEE ALSO FURNACE RATING
PLATE.
THE FURNACE MAY BE USED FOR HEATING OF BUILD-
INGS OR STRUCTURES UNDER CONSTRUCTION.
INSTALLATION MUST COMPLY WITH ALL INSTALLATION
INSTRUCTIONS INCLUDING:
PROPER VENT INSTALLATION;
‐
FURNACE OPERATING UNDER THERMOSTAT‐
CONTROL;
RETURN AIR DUCT SEALED TO THE FURNACE;
‐
AIR FILTERS IN PLACE;‐
SET FURNACE INPUT RATE AND TEMPERATURE‐
RISE PER RATING PLATE MARKINGS;
MEANS FOR PROVIDING OUTDOOR AIR RE-
‐
QUIRED FOR COMBUSTION;
RETURN AIR TEMPERATURE MAINTAINED BE-
‐
TWEEN 55°F (13°C) AND 80°F (27°C); AND
CLEAN FURNACE, DUCT WORK AND COMPO-
‐
NENTS UPON SUBSTANTIAL COMPLETION OF
THE CONSTRUCTION PROCESS, AND VERIFY
THAT THE FURNACE OPERATING CONDITIONS
INCLUDING IGNITION, INPUT RATE, TEMPERA-
TURE RISE AND VENTING, ACCORDING TO THE
INSTRUCTIONS AND CODES.
!WARNING
DUCT LEAKS CAN CREATE AN UNBALANCED SYSTEM
AND DRAW POLLUTANTS SUCH AS DIRT, DUST, FUMES
AND ODORS INTO THE HOME CAUSING PROPERTY
DAMAGE. FUMES AND ODORS FROM TOXIC, VOLATILE
OR FLAMMABLE CHEMICALS, AS WELL AS AUTOMO-
BILE EXHAUST AND CARBON MONOXIDE (CO), CAN BE
DRAWN INTO THE LIVING SPACE THROUGH LEAKING
DUCTS AND UNBALANCED DUCT SYSTEMS CAUSING
PERSONAL INJURY OR DEATH (SEE FIGURE 2).
• IF AIR-MOVING EQUIPMENT OR DUCTWORK IS LO-
CATED IN GARAGES OR OFF-GARAGE STORAGE
AREAS - ALL JOINTS, SEAMS, AND OPENINGS IN THE
EQUIPMENT AND DUCT MUST BE SEALED TO LIMIT
THE MIGRATION OF TOXIC FUMES AND ODORS IN-
CLUDING CARBON MONOXIDE FROM MIGRATING
INTO THE LIVING SPACE.
• IF AIR-MOVING EQUIPMENT OR DUCTWORK IS LO-
CATED IN SPACES CONTAINING FUEL BURNING AP-
PLIANCES SUCH AS WATER HEATERS OR BOILERS -
ALL JOINTS, SEAMS, AND OPENINGS IN THE EQUIP-
MENT AND DUCT MUST ALSO BE SEALED TO PRE-
VENT DEPRESSURIZATION OF THE SPACE AND
POSSIBLE MIGRATION OF COMBUSTION BYPROD-
UCTS INCLUDING CARBON MONOXIDE INTO THE LIV-
ING SPACE.
FIGURE 2
MIGRATION OF DANGEROUS SUBSTANCES, FUMES, AND ODORS INTO
LIVING SPACES
Adapted from Residential Duct Diagnostics and Repair , with permission of Air Conditioning
Contractors of America (ACCA).
!WARNING
BLOWER AND BURNERS MUST NEVER BE OPERATED
WITHOUT THE BLOWER DOOR IN PLACE. THIS IS TO
PREVENT DRAWING GAS FUMES (WHICH COULD CON-
TAIN HAZARDOUS CARBON MONOXIDE) INTO THE
HOME THAT COULD RESULT IN PERSONAL INJURY OR
DEATH.

8
COMMONWEALTH OF MASSACHUSETTS NOTE
IMPORTANT! THE COMMONWEALTH OF MASSACHU-
SETTS REQUIRES COMPLIANCE WITH REGULATION
248 CMR 4.00 AND 5.00 FOR INSTALLATION OF
THROUGH-THE-WALL VENTED GAS APPLIANCES AS
FOLLOWS:
(a) For all side wall horizontally vented gas fueled equip-
ment 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, includ-
ing but not limited to decks and porches, the following re-
quirements shall be satisfied:
1. INSTALLATION OF CARBON MONOXIDE DETEC-
TORS. 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 de-
tector 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 re-
sponsibility of the property owner to secure the services of
qualified licensed professionals for the installation of hard
wired carbon monoxide detectors.
a. In the event that the side wall horizontally vented gas fu-
eled equipment is installed in a crawl space or an attic, the
hard wired carbon monoxide detector with alarm and bat-
tery 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 requirements; provided, however, that during
said thirty (30) day period, a battery operated carbon
monoxide detector with an alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS.
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 identification plate shall be
permanently mounted 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 equipment. The
sign shall read, in print size no less than one-half (1/2) inch
in size, “GAS VENT DIRECTLY 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 in-
spector observes carbon monoxide detectors and signage
installed in accordance with the provisions of 248 CMR
5.08(2)(a) 1 through 4.
(b) EXEMPTIONS: The following equipment 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 horizontally vented gas fu-
eled equipment installed in a room or structure separate
from the dwelling, building or structure used in whole or in
part for residential purposes.
(c) MANUFACTURER REQUIREMENTS – GAS EQUIP-
MENT VENTING SYSTEM PROVIDED. When the manu-
facturer of Product Approved side wall horizontally vented
gas equipment provides a venting system design or vent-
ing system components with the equipment, the instruc-
tions provided by the manufacturer for installation of the
equipment and the venting system shall include:
1. Detailed instructions for the installation 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 REQUIREMENTS – GAS EQUIP-
MENT VENTING SYSTEM NOT PROVIDED. 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 sys-
tems”, the following requirements shall be satisfied by the
manufacturer:
1. The referenced “special venting system” instructions
shall be included with the appliance or equipment installa-
tion instructions; and
2. The “special venting systems” shall be Product Ap-
proved by the Board, and the instructions for that system
shall include a parts list and detailed installation instruc-
tions.
(e) A copy of all installation instructions for all Product Ap-
proved side wall horizontally vented gas fueled equipment,
all venting instructions, all parts lists for venting instruc-
tions, and/or all venting design instructions shall remain
with the appliance or equipment at the completion of the
installation.
Safety Information

9
1. IMPORTANT: If installing the unit over a finished ceiling
or living area, be certain to install an auxiliary conden-
sate drain pan under the entire unit. This auxiliary drain
pan should extend under any evaporator coil installed
with the furnace and the open portion of the conden-
sate drain assembly. See “Condensate Drain/Neutral-
izer” section for more details.
2. IMPORTANT: If using a cooling evaporator coil with this
furnace, be sure the air passes over the heat ex-
changer before passing over the cooling coil. The
cooled air passing over the warm ambient air inside the
heat exchanger tubes can cause condensation inside
the tubes resulting in corrosion and eventual failure.
If these are manual dampers, they must be equipped to
prevent heating or cooling operation unless the damper is
in the full heat or cool position.
3. IMPORTANT: Furnace must be installed level from
front-to-back or with a slight tilt such that the back of
the furnace is up to 1/2” higher than the front of the fur-
nace as shown in Figure 3.
NOTE: These furnaces are approved for installation in at-
tics, as well as alcoves, utility rooms, closets and crawl-
spaces. Provisions must be made to prevent freezing of
condensate.
FREEZE PROTECTION
For installations where the furnace may reach temperatures
below 32°F (0°C) (such as an alcove or attic installation),
the installer must take precautions to ensure that the drain
trap and connected drain pipe do not freeze. Local codes
and practices should be followed in order to prevent freez-
ing.
If the drain trap is installed within the furnace cabinet, no
freeze protection is required. When the trap is mounted out-
side or partially outside the cabinet, it must be protected
from freezing. Regardless of the location of the drain trap,
any exposed drain piping must be protected from freezing
as required by local practices or codes. A UL or CSA listed
heat tape or UL or CSA approved heating cable with a rat-
ing of 3-6 watts per foot is acceptable protection when in-
stalled and maintained in accordance with the
manufacturer’s instructions. Good installation practices ne-
cessitate that the installer verify heat tape operation in ac-
cordance with the manufacturer’s instructions at the time of
installation.
IMPORTANT: Support this unit when installed. Since this
furnace is suitable for attic or crawl space installation, it
may be installed on combustible wood flooring or by using
support brackets.
FIGURE 3
1/4" MIN. TO 1/2" MAX. TILT
TOWARD THE FRONT
OF THE CABINET IN ALL
INSTALLATIONS AND
ORIENTATIONS
1/4" MIN. TO 1/2" MAX. TILT
TOWARD THE FRONT
OF THE CABINET IN ALL
INSTALLATIONS AND
ORIENTATIONS
UPFLOW / DOWNFLOW
HORIZONTAL (LEFT OR RIGHT)
ST-A1194-13-X0
LOCATION REQUIREMENTS
GENERAL INFORMATION
Location
!WARNING
WHEN THIS FURNACE IS INSTALLED IN A RESI-
DENTIAL GARAGE, IT MUST BE INSTALLED SO THE
BURNERS AND IGNITION SOURCE ARE LOCATED
NO LESS THAN 18 INCHES [450MM] ABOVE THE
FLOOR. THIS IS TO PREVENT THE RISK OF IGNIT-
ING FLAMMABLE VAPORS WHICH MAY BE PRES-
ENT IN A GARAGE. ALSO,THE FURNACE MUST BE
LOCATED OR PROTECTED TO AVOID PHYSICAL
DAMAGE BY VEHICLES. FAILURE TO FOLLOW
THESE WARNINGS CAN CAUSE A FIRE OR EXPLO-
SION, RESULTING IN PROPERTY DAMAGE, PER-
SONAL INJURY OR DEATH.
0-1/2HIGHER
THAN THE FRONT
OF FURNACE
0-1/2HIGHER
THAN THE FRONT
OF FURNACE
BACK FRONT
BACK FRONT

10
Location
SITE SELECTION
1. Select a site in the building near the center of the pro-
posed, or existing, duct system.
2. Give consideration to the vent system piping when se-
lecting the furnace location. Be sure the venting system
can get 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 piping. See Figure 5.
4. Locate the furnace to maintain proper clearance to
combustibles as shown in following Figure 6.
CLEARANCE – ACCESSIBILITY
The design of forced air furnaces with input ratings as
listed in the tables under Figure 6 are certified by CSA-In-
ternational 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 (61 cm) is recom-
mended in front of all furnaces.
NOTE: Use recommended 24” (61 cm) clearance if accessi-
bility clearances are greater than fire protection clearances.
For downflow non-zero clearance furnace installations, the
minimum clearance required on the right side of the fur-
nace is shown in Figure 4. If this clearance cannot be
maintained, a downflow zero-clearance kit; RXGY-ZK will
need to be installed.
GENERAL INFORMATION (cont.)
FIGURE 5
AIR FLOW
NOTE:
HORIZONTAL LEFT ORIENTATION DEPICTED IN ILLUSTRATION.
HORIZONTAL RIGHT ORIENTATION IS SIMILAR IN INSTALLATION.
ST-A1194-05-X0
FIGURE 4
OPTION - B
2” - 3” PIPE
OPTION - A
2” PIPE
8”
6”
ST-A1194-40-X0
CLEARANCE FLUE VENT TO WALL
!WARNING
THIS FURNACE IS NOT APPROVED OR RECOM-
MENDED FOR INSTALLATION ON ITS BACK, WITH
ACCESS DOORS FACING UPWARDS.
!WARNING
DO NOT LIFT THE UNIT BY THE HEAT EXCHANGER
TUBES. DOING SO CAN DAMAGE THE HEAT EX-
CHANGER ASSEMBLY.
!WARNING
COMBUSTIBLE MATERIAL MUST NOT BE PLACED
ON OR AGAINST THE FURNACE JACKET. THE
AREA AROUND THE FURNACE MUST BE KEPT
CLEAR AND FREE OF ALL COMBUSTIBLE MATERI-
ALS INCLUDING GASOLINE AND OTHER FLAMMA-
BLE VAPORS AND LIQUIDS. PLACEMENT OF
COMBUSTIBLE MATERIALS ON, AGAINST OR
AROUND THE FURNACE JACKET CAN CAUSE AN
EXPLOSION OR FIRE RESULTING IN PROPERTY
DAMAGE, PERSONAL INJURY OR DEATH. THE
HOMEOWNER SHOULD BE CAUTIONED THAT THE
FURNACE AREA MUST NOT BE USED AS A
BROOM CLOSET OR FOR ANY OTHER STORAGE
PURPOSES.
!WARNING
UPFLOW FURNACES ARE DESIGN- CERTIFIED FOR
INSTALLATION ON COMBUSTIBLE FLOORS. NOTE,
HOWEVER, THAT FURNACES MUST NOT BE IN-
STALLED DIRECTLY ON CARPETING, TILE OR
OTHER COMBUSTIBLE MATERIAL OTHER THAN
WOOD FLOORING. INSTALLATION ON A COM-
BUSTIBLE MATERIAL CAN RESULT IN FIRE, CAUS-
ING PROPERTY DAMAGE, PERSONAL INJURY OR
DEATH.
LOCATION REQUIREMENTS
6” 8”
NOTE: These
dimensions refer
to furnace
clearance only.
For required
vent clearances
and supports,
refer to vent
manufacturer’s
instructions.
NOTE: THESE ILLUSTRATIONS ARE INTENTIONALLY GENERIC.
NOTE: SOME PARTS OF YOUR FURNACE MAY APPEAR DIFFERENT.

11
FIGURE 6
UNIT DIMENSIONS (CLEARANCE TO COMBUSTIBLES)
TOPBOTTOM
FRONTLEFT SIDE RIGHT SIDE
RIGHT BACK TOP FRONT VENT
(-)95PA040
& (-)(-)95MSP040
(-)95PA060
& (-)(-)95MSP060
(-)95PA070
& (-)(-)95MSP070
(-)95PA085
& (-)(-)95MSP085
(-)95PA100
&(-)(-)95MSP100
(-)95PA115
& (-)(-)95MSP115
000120 000120 000120 000120 000120 000120
SHIPPING
WEIGHTS
MINIMUM CLEARANCE (IN.)
MODEL LEFT
SIDE
UNIT DIMENSIONS
(CLEARANCE TO COMBUSTIBLES)
A
I
R
F
L
O
W
A B
.62 .62
34.00
23.33
25.44
26.19
22.63
25.81
26.31
8.00
11.03
17.50 18.13
26.11
29.05
32.65
24.19
22.31
OPTIONAL TRAP
LOCATION
(HORIZONTAL)
OPTIONAL CONDENSATE
DRAIN (DOWNFLOW)
GAS
CONNECTION
OPTIONAL COMBUSTION
VENT LOCATION
OPTIONAL TRAP
LOCATION
(HORIZONTAL)
OPTIONAL VENT
AIR INLET
CONDENSATE DRAIN
(UPFLOW)
ELECTRICAL CONNECTION
LINE VOLTAGE
ELECTRICAL CONNECTION
LOW VOLTAGE
22.96
23.80
8.00
11.00
17.44
29.05
26.17
32.88
23.00
14.00
28.06
1.12
29.62
.62
19.83
OPTIONAL LINE VOLTAGE WIRING
OPTIONAL LOW VOLTAGE WIRING
OPTIONAL CONDENSATE
DRAIN (UPFLOW)
TRAP LOCATION
(HORIZONTAL)
OPTIONAL GAS CONNECTION
OPTIONAL
CONDENSATE DRAIN
(DOWNFLOW)
1.76 1.66
24.86 26.26
B
19.83 SUPPLY
AIR
23.21
1.62
1.67
24.91
.30
C
19.77
A
.65
RETURN
AIR
OPTIONAL
VENT OUTLET
KNOCKOUT OPTIONAL COMBUSTION
AIR INLET KNOCKOUT
125
SUPPLY AND RETURN DEPICTED AS UPFLOW CONFIGURATION.
FLANGE CONFIGURATION WILL VARY DEPENDING ON INSTALLATION ORIENTATION.
A
BC
17 1/2
16 17/64
16 13/64
21
19 49/64
19 45/64
24 1/2
23 17/64
23 13/64
FLANGE DIMENSIONS
*A SERVICE CLEARANCE OF AT LEAST 24” IS RECOMMENDED IN FRONT OF ALL FURNACES
ST-A1194-01-X0
Location

12
Field Conversions
FIELD CONVERSIONS
CONDENSATE PVC/HOSE OPTIONS
BULKHEAD COUPLING
CONDENSATE DRAINIAGE HAS OPTIONS FOR 3/4" OR 1/2"
PVC CONNECTIONS. THE BULKHEAD COUPLING CONNECTS THE
RUBBER HOSES FROM INSIDE THE UNIT TO THE PVC PIPE
EXTERIOR OF THE UNIT. PVC PIPE CAN BE CEMENTED
DIRECTLY TO THE COUPLING AND THE TRAP WITH PROPER
PVC CEMENT AND PRIMER.
1/2" PVC
PIPE
3/4" PVC
TEE
RUBBER HOSE
CONNECTION
PVC FITTING/PIPE
3/4" PVC
COUPLING
NOTE: IMPROPER HOSE CONNECTIONS WILL PREVENT
CONDENSATE FROM DRAINING.
CONDENSATE TRAP
THE CONDENSATE TRAP HAS 2 SIDES PLEASE NOTE THEIR
LOCATIONS FOR DRAIN CONNECTIONS DURING CONVERSION.
OUT TO DRAIN
COLLECTOR BOX
IN FROM
IN FROM FLUE
ELBOW OR COUPLING
1/4" VENT IN
FROM COLLECTOR BOX
GENERAL CONVERSION INSTRUCTIONS
ST-A1194-37-02
-2010°
CONVERSION AND INSTALLATION
CONSIDERATIONS
ALL CONVERSIONS REQUIRE THE CONDENSATE PLUMBING TO
HAVE DECLINE IN THE DIRECTION OF THE WATER FLOW.
WHEN INSTALLING AND MOVING CONDENSATE PLUMBING THE
HOSES SHOULD BE FREE OF KINKS FOR PROPER WATER FLOW.
WHEN DRAIN HOSE OR CONDENSATE TRAP HOSE
ROUTING CHANGES ARE NECESSARY BE SURE TO PLUG OR CAP
ANY UNUSED HOSE TAPS.
THE INDUCER COUPLING COMES FROM THE FACTORY WITH
A 10 TILT FOR UP FLOW INSTALLATIONS. WHEN
CONVERTED TO DOWN FLOW THE COUPLING REQUIRES A
ROTATION A MINIMUM OF 10 FROM HORIZONTAL AS SHOWN.
HORIZONTAL INSTALLATIONS REQUIRE CONDENSATE TRAP TO BE
MOUNTED EXTERNALLY BELOW THE UNIT:
-USE CAUTION-MOUNT THE TRAP AFTER THE UNIT IS AT
THE POINT OF INSTALLATION TO PREVENT DAMAGE TO THE
TRAP DURING TRANSPORT.
-HAND TIGHTEN SCREWS WHEN MOUNTING THE TRAP OR THE
BULKHEAD COUPLING TO THE CABINET TO PREVENT DAMAGE
TO THE MOUNTING FLANGE.
-USE PROPER FREEZE PROTECTION IF REQUIRED.
-ALLOW MINIMUM OF 6" BELOW THE FURNACE FOR CLEARANCE.
10-20° TILT ON INDUCER COUPLING
GROUND
GROUND
LEVEL
MIDLINE
WORM
DRIVE
CLAMP
COUPLING
THE WORM DRIVE FOR THE HOSE CLAMPS
USED ON THE FLUE TRANSITION COUPLING
OR THE IDB COUPLING MUST BE ABOVE THE
LEVEL MIDLINE WHEN IN THE HORIZONTAL
POSITION AS DETAILED HERE.
IF THE IDB COUPLING IS REMOVED, IT MUST BE REPLACED IN THE
PROPER ORIENTATION. AN ARROW IS PRESENT ON THE COUPLING
TO INDICATE THE DIRECTION OF EXHAUST FLOW. MAKE SURE THE
ARROW POINTS IN THE CORRECT DIRECTION.
NOTE:
THE CONDENSATE TRAP IS DESIGNED WITH MULTIPLE OUTLET
DRAIN CONNECTIONS THAT CAN BE UTILIZED. THE SAME OUTLET
CAN BE USED FOR BOTH STANDARD PVC AND A 5/8" RUBBER
HOSE.
WHEN THE TRAP IS LOCATED INSIDE THE UNIT A 5/8" RUBBER
HOSE CAN BE SECURED WITH A HOSE CLAMP TO MAKE HOSE
CONNECTIONS TO THE BULKHEAD COUPLING. PLIERS ARE
NEEDED TO ADJUST OR REMOVE THE CLAMP.
WHEN THE TRAP IS LOCATED OUTSIDE OF THE UNIT STANDARD
PVC FITTINGS CAN BE CEMENTED DIRECTLY TO THE OUTLET
WITH PROPER PVC CEMENT AND PRIMER.
HORIZONTAL INSTALLATIONS REQUIRE CONDENSATE TRAP
TO BE MOUNTED EXTERNALLY BELOW THE UNIT:

13
FIELD CONVERSIONS
Field Conversions
PARTSBAG (PROVIDEDWITHUNIT)
CONVERSION KIT RXGY-CK
CONVERSION KIT RXGY-ZK
(X2)
2-5/8" FLUSH
MOUNT PLUG
1/2" DRAIN
HOSE E
INTAKE
COUPLING
.559" CONDENSATE
TRAP DRAIN PLUG
#8 X1/2"
SCREW
(X2)
INTAKE
PIPE
1/4" BLACK
VENT TUBE
BULKHEAD
COUPLING
HOSE DOUBLE ELBOWTUBE C
HOSE CLAMP
INTAKE AIR
DIFFUSER
#8 X1/2"
SCREW
(X4)
#8 X1/2"
SCREW
(X10)
5/8" DRAIN
HOSE B
CONDENSATE TRAP
BRACKET (DOWN FLOW)
2" PVC VANE
1/4" HOLE
PLUG
1/2" DRAIN
HOSE F
1/2" DRAIN
HOSE G
CONDENSATE
TRAP GASKET
2" PIPE GROMMET
(3.375)
1/2" VINYL
CAP (YELLOW)
PIPE COLLAR
GASKET ASSEMBLY
(X2)
ST-A1194-38-03
GENERAL PARTS REQUIREDFOR CONVERSIONS
(X3)
FLUE PIPE
ASSEMBLY
W/ O-RING
O-RING
SEE NEXT PAGE FOR APPLICABLE CONFIGURATIONS

14
Field Conversions
FIELD CONVERSIONS
LISTS OF MATERIALS FOR PARTS BAGS AND CONVERSION KITS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 12
GENERAL CONVERSION INSTRUCTIONS AND TIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 13
UPFLOW WITH VERTICAL VENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 15‐16
UPFLOW WITH LEFT SIDE VENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 17‐18
DOWNFLOW WITH RIGHT VENT (NON‐ZERO CLEARANCE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 19‐22
DOWNFLOW ZERO‐CLEARANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 23‐27
HORIZONTAL RIGHT WITH RIGHT VENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 28‐30
HORIZONTAL RIGHT WITH VERTICAL VENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 31‐33
HORIZONTAL LEFT WITH RIGHT VENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 34‐38
HORIZONTAL LEFT WITH LEFT VENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pg 39‐41
FIELD CONVERSION TO VARIOUS CONFIGURATIONS
Furnaces can be converted in the field from upflow (as-shipped) to downflow, horizontal left or horizontal right as necessary.
In addition, there are different venting options, including a zero-clearance option, to give the installer flexibility in locating the
venting for this furnace.
AIRFLOW
AIRFLOW
AIRFLOW
AIRFLOW
(REQUIRES CONVERSION
KIT RXGY‐CK)
(REQUIRES CONVERSION
KIT RXGY‐CK)
(REQUIRES CONVERSION
KIT RXGY‐CK AND ZERO‐
CLEARANCE KIT RXGY‐ZK)
(REQUIRES CONVERSION
KIT RXGY‐CK)
(REQUIRES CONVERSION
KIT RXGY‐CK)
(REQUIRES CONVERSION
KIT RXGY‐CK AND ZERO‐
CLEARANCE KIT RXGY‐ZK)
(REQUIRES CONVERSION
KIT RXGY‐CK)
AIRFLOW
AIRFLOW
AIRFLOW
AIRFLOW

Field Conversions
TUBE C
CUT TO FIT
CABINETWIDTH
NOTE: PLIERS NECCESSARY TOADD OR REMOVE CLAMPS
4B
4b - RIGHT SIDE DRAINOPTION
4b1- CUT TUBE “C” TO FITCORRESPONDING CABINETWIDTH.
4b2- INSERT TUBE “C” INTO END “2” OF HOSE- DOUBLE ELBOW
4b3- SLIDE TWO WIRE CLAMPS OVERTUBE “C”,SLIDE ONE WIRE CLAMP OVER
END “1” OF HOSE - DOUBLE ELBOW.
4b4- INSTALL TUBE “C” WITH HOSE CLAMP AS SHOWN TO HOSE “A” “PRE ASSEMBLED”.
4b5- ATTACH HOSE - DOUBLE ELBOW TO BULKHEAD COUPLING POSITION WIRE HOSE
CLAMP.
HOSE A
TUBE C
4A
HOSE A
4a - LEFTSIDE DRAINOPTION
ATTACH HOSE A(PRE-INSTALLED) TO BULKHEAD COUPLING.
INSTALL HOSE CLAMP ON HOSE OVERBULK HEAD COUPLING.
3
INSTALL BULKHEAD COUPLING USING (2) SCREWS.
INSTALL INJACKETWITH THE BARBEDFITTING
POINTEDINTO THE VESTIBULE.
INSTALL
2OPTION DRAINRIGHT
DETERMINE RIGHT OR LEFTDRAINOPTION.
LOCATE 7/8" HOLE INJACKETSIDE.
REMOVE PLUG - DISCARD.
DRILL (2) Ø 1/8" HOLESFOR THE BULKHEAD COUPLING.
DRILL 1/8”
DRILL 1/8”
7/8” PLUG
DISCARD
OPTION DRAINLEFT
7/8” PLUG
DISCARD
1
INSTALL INTAKE COUPLING INTOP PLATE.
INSTALL
UPFLOW VERTICAL VENT
NOTE:THESE CONVERSION INSTRUCTIONS ARE INTENTIONALLYGENERIC, SOME PARTS MAY BE DIFFERENT INYOUR FURNACE
ST-A1194-28-03
PARTS NEEDED:
PARTS NEEDEDFOR THISCONVERSION REQUIRE ITEMS
FROM THE PARTSBAG ONLY. NO OTHERCONVERSION
KITS ARE NEEDED.
!
TUBE C
BULKHEAD
COUPLING
FROM PARTS BAG (PROVIDEDWITH UNIT)
(X2)
#8X 1/2"
SCREW
HOSE
CLAMP
INTAKE
COUPLING
W/ NUT
DRILL 1/8" DRILL BITPLIERS
1/4" HEX HEAD DRIVERTUBING CUTTER
TOOLS/MATERIALSNEEDED:
"*3
'-08
(X3)
(X3)
HOSE -
DOUBLE ELBOW
1
2
HOSE -
DOUBLE ELBOW
15

Field Conversions
ST-A1194-28-03
Notes:
Checklist:
__ ALL DRAIN PORTS ARE PLUGGED
__ UNITHAS FORWARD PITCH
__ HEAT TAPE INSTALLED(IF REQUIRED)
__ VERIFYALL HOSESARE SECURE ANDFULLYSEATED.
__ CONFIRM THAT ALL HOSESARE FREE OF KINKS
__ CONFIRM ALL HOSESANDOTHERDRAIN PARTS HAVE A
SLOPE IN DIRECTION OF WATERFLOW
__ ALL CLAMPS ANDCOUPLINGS ARE TIGHTENED
16

17
Field Conversions
DRILL
1/8" DRILL BIT
PLIERS
FLAT HEAD SCREWDRIVER
5/16 HEXHEAD DRIVER
1/4" HEXHEAD DRIVER
TUBINGCUTTER
TOOLS/MATERIALSNEEDED:
UPFLOWLEFTVENT
NOTE:THESE CONVERSION INSTRUCTIONSARE INTENTIONALLYGENERIC, SOME PARTS MAY BE DIFFERENTIN YOUR FURNACE
ST-A1194-29-03
PARTS NEEDED:
(X2)
FROM PARTS BAG (PROVIDEDW/UNIT)
INTAKE
COUPLING
W/ NUT
BULKHEAD
COUPLING
#8X1/2"
SCREW
TUBE C
HOSE
CLAMP
4
INSTALL BULKHEAD COUPLINGUSING(2) SCREWS.
INSTALL IN JACKETWITH THE BARBEDFITTING
POINTEDINTO THE VESTIBULE.
3
DETERMINE RIGHT OR LEFTDRAIN OPTION.
LOCATE 7/8" HOLE IN JACKETSIDE.
REMOVE PLUG - DISCARD.
DRILL (2) ø1/8" HOLESFOR THE BULKHEAD COUPLING.
DRILL 1/8”
DISCARD
OPTION DRAIN RIGHT
DRILL 1/8”
DISCARD
OPTION DRAIN LEFT
2
2a - INSTALL 2-5/8" FLUSH MOUNTPLUG IN TOP PLATE.
2b - INSTALL 2" PIPE GROMMETAS SHOWN.
2c - INSTALL INTAKE COUPLINGAS SHOWN.
2b
2c
2a
2-5/8”
1a
1b
1c
1
1a - REMOVE FLUE TRANSITION,TRANSITION COUPLING, ANDELBOW.
(NOTE:REMOVE INDUCERCOUPLINGW/ELBOWFOREASIERREMOVAL).
1b - REMOVE 3-3/8" FLUSH MOUNTPLUG FROM JACKET- DISCARD.
1c - RELOCATE 2-3/8" FLUSH MOUNTPLUG FROM JACKETTO TOP PLATE.
RE-LOCATE
DISCARD
IDB COUPLING
(RETAIN)
FLUE TRANSITION
(DISCARD)
TRANSITION
COUPLING
(DISCARD)
ELBOW
(DISCARD)
FROM CONVERSION KITRXGY-CK
2-3/8" PIPE
GROMMET
2-5/8" FLUSH
MOUNTPLUG
PARTS NEEDEDFOR THIS
CONVERSION REQUIRE THE
OUTLINEDITEMS FROM THE PARTS BAG
ANDCONVERSION KITRXGY-CK.YOU
MUST HAVE THESE PARTS BEFORE
PROCEEDING.
!
"*3
'-08
IF THE IDB
COUPLINGIS
REMOVED, IT
MUST BE
REPLACEDIN
THE PROPER
ORIENTATION.
AN ARROW IS
PRESENTON
THE COUPLING
TO INDICATE
THE DIRECTION
OF EXHAUST
FLOW. MAKE
SURE THE
ARROW POINTS
IN THE
CORRECT
DIRECTION.
NOTE:
(X3)
HOSE -
DOUBLE
ELBOW
SEE CRITICAL HOSE CLAMP LOCATION NOTE
IN THE GENERAL COVERSION INSTRUCTIONS.

Field Conversions
(X3)
5B
HOSE A
TUBE C
TUBE C
CUT TOFIT
CABINETWIDTH
5A
HOSE A
5a - LEFTSIDE DRAINOPTION
ATTACH HOSE A(PRE-INSTALLED)TOBULKHEADCOUPLING.
PLACE CLAMPOVERHOSE ONBULKHEADCOUPLING.
Checklist:
ST-A1194-29-03
Notes:
NOTE: PLIERS NECCESSARY TOADD OR REMOVE CLAMPS
HOSE -
DOUBLE ELBOW
1
2
5b - RIGHT SIDE DRAINOPTION
5b1- CUT TUBE “C” TOFITCORRESPONDING CABINETWIDTH.
5b2- INSERT TUBE “C” INTOEND“2” OF HOSE- DOUBLE ELBOW
5b3 - SLIDE TWOWIRE CLAMPS OVERTUBE “C”,SLIDE ONE WIRE CLAMPOVER
END“1” OF HOSE - DOUBLE ELBOW.
5b4- INSTALL TUBE “C” WITH HOSE CLAMPAS SHOWNTOHOSE “A” “PRE ASSEMBLED”.
5b5- ATTACH HOSE - DOUBLE ELBOWTOBULKHEADCOUPLING POSITIONWIRE HOSE
CLAMP.
__ VERIFYALL HOSESARE SECURE ANDFULLYSEATED.
__ CONFIRMTHAT ALL HOSESARE FREE OF KINKS.
__ CONFIRMALL HOSESANDOTHERDRAINPARTS HAVE A
SLOPE INDIRECTIONOF WATERFLOW
__ BOTH WORMDRIVESONTHE HOSE CLAMPS OF THE IDBCOUPLING
MUST BE LOCATEDONTHE TOPOF THE COUPLING. SEE LOCATION
DETAIL INTHE GENERAL CONVERSIONINSTRUCTIONS AT THE
BEGINNING OF THISSECTION.
__ ALL CLAMPS ANDCOUPLINGS ARE TIGHTENED
__ ALL DRAINPORTS ARE PLUGGED
__ UNITHAS FORWARDPITCH
__ HEAT TAPE INSTALLED(IF REQUIRED)
18

19
Field Conversions
DOWNFLOW W/ RIGHT VENT (NON-ZERO CLEARANCE) DOWNFLOW W/ RIGHT VENT (NON-ZERO CLEARANCE)
PARTS NEEDEDFORTHISCONVERSION REQUIRE ITEMS
DOWNFLOW W/ RIGHT VENT (NON-ZERO CLEARANCE)
PARTS NEEDEDFORTHISCONVERSION REQUIRE ITEMS
DOWNFLOW W/ RIGHT VENT (NON-ZERO CLEARANCE)
PARTS NEEDEDFORTHISCONVERSION REQUIRE ITEMS
DOWNFLOW W/ RIGHT VENT (NON-ZERO CLEARANCE)
PARTS NEEDED:
(X2)
FROM PARTS BAG(PROVIDEDWITHUNIT)
3*"
80-'
(X3)
FROM THE
YOUMUST HAVE THE PARTS OUTLINEDBELOWBEFORE
PROCEEDING.
!
PARTS NEEDED:
FROM PARTS BAG(PROVIDEDWITHUNIT)
FROM THE PARTS BAG ANDCONVERSION KIT
YOUMUST HAVE THE PARTS OUTLINEDBELOWBEFORE
PROCEEDING.
HOSE -
DOUBLE
ELBOW
ANDCONVERSION KITRXGY-CK.
YOUMUST HAVE THE PARTS OUTLINEDBELOWBEFORE
FROM CONVERSION KITRXGY-CK
2-5/8" FLUSH
2" PIPE GROMMET
#8 X1/2"
SCREW
HOSE
CLAMP
FROM CONVERSION KITRXGY-CK
2-5/8" FLUSH
#8 X1/2"
SCREW
(X4)
TUBE C
CONDENSATE
TRAPDRAIN
PLUG .559”
COUPLING
INTAKE AIR
DIFFUSER
CONDENSATE
TRAPBRACKET
INTAKE
COUPLING
W/ NUT
BULKHEAD
COUPLING
1/4" BLACK
CONDENSATE
TRAPBRACKET
NOTE:STEPS1- 5SHOWN WITHFURNACE IN “AS SHIPPEDCONDITION”
NOTE:THESE CONVERSION INSTRUCTIONSARE INTENTIONALLYGENERIC, SOME PARTS MAY BE DIFFERENTIN YOUR FURNACE
DRILL
(1) 1/8" DRILL BIT
TOOLS/MATERIALSNEEDED:
2-5/8" FLUSH
MOUNTPLUG
(
3.375)
NOTE:STEPS1- 5SHOWN WITHFURNACE IN “AS SHIPPEDCONDITION”
NOTE:THESE CONVERSION INSTRUCTIONSARE INTENTIONALLYGENERIC, SOME PARTS MAY BE DIFFERENTIN YOUR FURNACE
(1) 3/16" DRILL BIT
PLIERS
TOOLS/MATERIALSNEEDED:
2-5/8" FLUSH
MOUNTPLUG
NOTE:STEPS1- 5SHOWN WITHFURNACE IN “AS SHIPPEDCONDITION”
NOTE:THESE CONVERSION INSTRUCTIONSARE INTENTIONALLYGENERIC, SOME PARTS MAY BE DIFFERENTIN YOUR FURNACE
(1) 1/4" HEXHEADDRIVER
(1) 5/16HEXHEADDRIVER
TOOLS/MATERIALSNEEDED:
5/8" DRAIN
HOSE B
NOTE:THESE CONVERSION INSTRUCTIONSARE INTENTIONALLYGENERIC, SOME PARTS MAY BE DIFFERENTIN YOUR FURNACE
FLAT HEADSCREWDRIVER
TUBINGCUTTER
TRAPBRACKET
(DOWN FLOW)
1/2" DRAIN
HOSE E
NOTE:THESE CONVERSION INSTRUCTIONSARE INTENTIONALLYGENERIC, SOME PARTS MAY BE DIFFERENTIN YOUR FURNACE
FLAT HEADSCREWDRIVER
1/4" BLACK
VENTTUBE
TRAPBRACKET
(DOWN FLOW)
1
1a
TRANSITION
COUPLING
(DISCARD)
FLUE TRANSITION (DISCARD)
ELBOW(DISCARD)
IDB COUPLING
(RETAIN)
2
2-5/8"
TRANSITION
COUPLING
(DISCARD)
FLUE TRANSITION (DISCARD)
ELBOW(DISCARD)
IDB COUPLING
(RETAIN)
2d
2-5/8"
INSTALL
1b
VENTHOSE
(DISCARD)
HOSE “D”
(RETAIN)
DISCARD
2a
VENTHOSE
(DISCARD)
HOSE “D”
(RETAIN)
IF THE IDB COUPLINGIS
REMOVED, ITMUST BE
REPLACEDIN THE PROPER
ORIENTATION. AN ARROWIS
PRESENTON THE COUPLING
TO INDICATE THE DIREC-
NOTE:
M
O
O
V
M
V
E
O
E
V
2c
IF THE IDB COUPLINGIS
REMOVED, ITMUST BE
REPLACEDIN THE PROPER
ORIENTATION. AN ARROWIS
PRESENTON THE COUPLING
TO INDICATE THE DIREC-
M
O
V
E
2b
1a - REMOVE FLUE TRANSITION,TRANSITION COUPLING, ANDELBOW.
(NOTE: REMOVE COUPLING ON INDUCER WITH ELBOW FOR EASIER REMOVAL)
1b - REMOVE TRAPANDHOSES. RETAIN HOSE DFORLATERUSE.
(NOTE:TO REMOVE TRAP REMOVE (2)SCREWS AND PULL STRAIGHT OUT).
1a - REMOVE FLUE TRANSITION,TRANSITION COUPLING, ANDELBOW.
(NOTE: REMOVE COUPLING ON INDUCER WITH ELBOW FOR EASIER REMOVAL)
1b - REMOVE TRAPANDHOSES. RETAIN HOSE DFORLATERUSE.
(NOTE:TO REMOVE TRAP REMOVE (2)SCREWS AND PULL STRAIGHT OUT).
2a-REMOVE 3-3/8" FLUSHMOUNTPLUG FROM JACKET- DISCARD.
2b-RELOCATE 2-3/8" FLUSHMOUNTPLUG FROM JACKETTO TOPPLATE.
2c-RELOCATE 1/2" VINYL CAP(YELLOW)IN INDUCERCOUPLING.
2d-INSTALL 2-5/8" FLUSHPLUG IN TOPPLATE.
1a - REMOVE FLUE TRANSITION,TRANSITION COUPLING, ANDELBOW.
(NOTE: REMOVE COUPLING ON INDUCER WITH ELBOW FOR EASIER REMOVAL).
1b - REMOVE TRAPANDHOSES. RETAIN HOSE DFORLATERUSE.
(NOTE:TO REMOVE TRAP REMOVE (2)SCREWS AND PULL STRAIGHT OUT).
TION OF EXHAUST FLOW.
MAKE SURE THE ARROW
POINTS IN THE CORRECT
DIRECTION.
2a-REMOVE 3-3/8" FLUSHMOUNTPLUG FROM JACKET- DISCARD.
2b-RELOCATE 2-3/8" FLUSHMOUNTPLUG FROM JACKETTO TOPPLATE.
2c-RELOCATE 1/2" VINYL CAP(YELLOW)IN INDUCERCOUPLING.
2d-INSTALL 2-5/8" FLUSHPLUG IN TOPPLATE.
TION OF EXHAUST FLOW.
MAKE SURE THE ARROW
POINTS IN THE CORRECT
ST-A1194-30-02
2a-REMOVE 3-3/8" FLUSHMOUNTPLUG FROM JACKET- DISCARD.
2b-RELOCATE 2-3/8" FLUSHMOUNTPLUG FROM JACKETTO TOPPLATE.
2c-RELOCATE 1/2" VINYL CAP(YELLOW)IN INDUCERCOUPLING.

20
Field Conversions
ST-A1194-30-02
ROTATE
UNIT
5b
5a
5a - PRE-DRILL (2) Ø 3/16" HOLES IN JACKET AS SHOWN FOR CONDENSATE TRAP BRACKET.
5b - ROTATE UNIT180°
DRILL (2)
Ø3/16" HOLES
5
.559
DRAIN PLUG
4c
4a
4b
DISCARD
4a- REMOVE THE SMALL MOUNTING BRACKET ANDTHE .403"
DRAIN PLUG - DISCARD.
4b- INSTALL THE DOWN FLOW CONDENSATE TRAP BRACKET WITH
(2) SCREWS AS SHOWN.
4c- INSTALL .559" DRAIN PLUG IN THE CONDENSATE TRAP.
4
3d3c
3a
3b
3a - RELOCATE .403" DRAIN PLUG IN THE COLLECTOR BOX.
3b - INSTALL 2" PIPE GROMMET
3c - INTAKECOUPLING IN JACKET AS SHOWN.
3d - INSERT AIRDIFFUSER INTO COUPLING UNTIL TABS ARE SEATED.
3
INSERT AIR
DIFFUSER UNTIL
TABS ARE FULLY
SEATED
INSTALL
M
O
V
E
NOTE:
DIFFUSER MAY HAVE ATENDENCEY TOFALL
OUT OF THECOUPLINGAT THISSTEP. THE
INSTALLER MAY ELECT TOINSTALL THE
DIFFUSER AFTER ROTATINGTHEFURNACE
TOTHEHORIZONTAL POSITION.