Rheem RGFE, RGJF, RGGE Installation Instructions Manual

INSTALLATION INSTRUCTIONS
FOR RGFE UPFLOW, RGGE DOWNFLOW & RGJF DEDICATED HORIZONTAL HIGH EFFICIENCY MODULATING CONDENSING GAS FURNACES
RGJF
RGFE
RGGE
SEE PAGE 112
SEE PAGE 122
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 con­trol. 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.
MODULATING THERMOSTAT
INSTALLATION
MODULATING
COMMUNICATING
THERMOSTAT
INSTALLATION
ISO 9001:2008
WARNING
!
DO NOT EXCHANGE MEMORY CARDS BETWEEN 2 OR MORE DIFFERENT FURNACES. DOING SO COULD RESULT IN UNEXPECTED OPERATION – INCLUDING INADEQUATE AIRFLOW DUR­ING HEATING (AND OTHER MODES) OR A LOSS OF HEAT.
RECOGNIZE THIS SYMBOL AS AN INDICATION OF IMPORTANT SAFETY INFORMATION!
IF THE INFORMATION IN THESE INSTRUCTIONS IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT, CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
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 POISON­ING, 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 u
— 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 installa­tion 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 injur
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.
ntil authorized by the gas supplier or fire department.
y, property
92-24161-75-00
IMPORTANT: All Rheem products meet current Federal 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 ga
s.
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-cond
itioning equipment, or found in natural 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 consumers are aware that products present safety and health risks, when improperly used, handled and main­tained.
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 material.
TABLE OF CONTENTS
SAFETY INFORMATION ..........................................................................................................................................3
INSTALLATION CHECK LIST...................................................................................................................................5
GENERAL INFORMATION .......................................................................................................................................6
IMPORTANT INFORMATION ABOUT EFFICIENCY AND INDOOR AIR QUALITY..............................................8
LOCATION REQUIREMENTS AND CONSIDERATIONS.......................................................................................9
CLEARANCE-ACCESSIBILITY....................................................................................................................10
SITE SELECTION .........................................................................................................................................11
DIMENSIONS AND CLEARANCE TO COMBUSTIBLES...........................................................................12
UPFLOW MODELS.............................................................................................................................12
DOWNFLOW MODELS......................................................................................................................13
HORIZONTAL MODELS.....................................................................................................................14
DUCTING ......................................................................................................................................................15
SUPPLYAIR SENSOR .................................................................................................................................17
VENTING AND COMBUSTION AIR PIPING.........................................................................................................18
INSTALLATION WITH PRE-EXISTING VENT SYSTEMS..........................................................................18
JOINING PIPE AND FITTINGS....................................................................................................................19
CEMENTING JOINTS...................................................................................................................................19
NON-DIRECT VENT PIPE INSTALLATION ...........................................................................................................20
DIRECT VENT PIPE INSTALLATION ....................................................................................................................24
CONCENTRIC TERMINATIONS..................................................................................................................26
HORIZONTALTERMINATIONS...................................................................................................................28
CONDENSATE DRAIN / OPTIONAL NEUTRALIZER ..........................................................................................34
CONVERTING DOWNFLOW/HORIZONTAL MODELS TO HORIZONTAL CONFIGURATION.........................36
GAS SUPPLYAND PIPING ....................................................................................................................................39
GAS VALVE...................................................................................................................................................40
LP CONVERSION.........................................................................................................................................42
ELECTRICAL WIRING............................................................................................................................................45
ACCESSORIES.......................................................................................................................................................47
ELECTRONIC AIR CLEANER......................................................................................................................47
HUMIDIFICATIONAND DEHUMIDIFICATION............................................................................................47
OTHER ACCESSORIES ..............................................................................................................................49
TYPICAL WIRING ACCESSORIES FOR COMMUNICATING RESIDENTIAL SYSTEMS............49-50
HIGH ALTITUDE INSTALLATIONS ........................................................................................................................51
LP GAS AT HIGH ALTITUDE ELEVATIONS................................................................................................53
ZONING SYSTEMS......................................................................................................................................54
INSTALLATION WITH NON-COMMUNICATING, HIGH-EFFICIENCY PREMIUM COOLING
SYSTEMS ...................................................................................................................................................54
INTEGRATED FURNACE CONTROL ...................................................................................................................55
CONNECTORS AND COMPONENTS OF FURNACE CONTROL ...........................................................55
SPECIAL CONFIGURATION – COMM T-STAT AND NON-COMM CONDENSER ..................................56
MEMORY CARD...........................................................................................................................................60
RULES FOR WRITING, DISTRIBUTION AND ARBITRATION OF MULTIPLE COPIES OF
FURNACE SHARED DATA FOR COMMUNICATING-CAPABLE FURNACES ..............................60
REPLACING THE FURNACE CONTROL...................................................................................................63
DIPSWITCHES .............................................................................................................................................66
FURNACE OPERATION USING NON-COMMUNICATING MODULATING,
MODULATING AND TWO-STAGE T-STATS.....................................................................................69
COMMUNICATING SYSTEMS....................................................................................................................73
WIRING FOR COMMUNICATIONS...................................................................................................73
STARTUP FOR SYSTEMS CONFIGURED WITH COMMUNICATIONS........................................74
CONTINUOUS FAN OPERATION IN COMMUNICATING MODE...................................................75
ACTIVE FAULT CODES WITH COMMUNICATING SYSTEMS.......................................................75
FURNACE USER MENUS ...........................................................................................................................75
STATUS 1 ............................................................................................................................................76
STATUS 2 ............................................................................................................................................78
2 WK HIST...........................................................................................................................................78
LIFE HIST............................................................................................................................................79
FAULT HISTORY.................................................................................................................................79
UNIT INFO...........................................................................................................................................79
SETUP.................................................................................................................................................79
DIPSWITCH.........................................................................................................................................80
DUAL-FUEL OPERATION ............................................................................................................................80
START-UP PROCEDURES ....................................................................................................................................81
SEQUENCE OF OPERATION.....................................................................................................................83
SETTING INPUT RATE................................................................................................................................83
MAINTENANCE.......................................................................................................................................................84
TROUBLESHOOTING CHART ..............................................................................................................................87
NORMAL OPERATING CODES (TABLE 20) ........................................................................................................89
FURNACE FAULT CODES WITH DESCRIPTIONS AND SOLUTIONS (TABLE 21)..................................90-105
WIRE DIAGRAM – STEPPER / SERVO MODULATING VALVE (FUEL CODES HA OR HB).........................106
WIRE DIAGRAM – SOLENOID CONTROLLED MODULATING VALVE (FUEL CODES HG OR HH)............107
THERMOSTATS ....................................................................................................................................................108
NON-COMMUNICATING THERMOSTATS...............................................................................................108
THERMOSTAT WIRING (WITH WIRING DIAGRAMS) ............................................................................109
APPLICATIONS.....................................................................................................................................................112
MODULATING, TOUCH-SCREEN, NON-COMMUNICATING THERMOSTAT ((-)HC-TST412MDMS)..112
COMMUNICATING THERMOSTATS.........................................................................................................122
(-)HC-TST501CMMS PROGRAMMABLE COMMUNICATING THERMOSTAT............................124
(-)HC-TST550CMMS FULL COLOR, PROGRAMMABLE COMMUNICATING THERMOSTAT...128
2
IMPORTANT: To insure proper installation and operation of this product, com­pletely 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.
SAFETY INFORMATION
IMPORTANT!
THE COMMONWEALTH OF MASSA­CHUSETTS 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 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 follow­ing requirements shall be satisfied:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS. 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 respon­sibility 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 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 subdi 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 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 DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”.
vision can not be met at the
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 provi­sions 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 a
2. Product Approved side wall horizon-
tally vented gas fueled 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 EQUIPMENT VENT­ING SYSTEM PROVIDED. When the manufacturer of Product Approved side
wall horizontally vented gas equipment
provides a venting system design or venting system components with the equip
ment, the instructions 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 EQUIPMENT VENT­ING SYSTEM NOT PROVIDED. When the manufacturer of a Product
Approved side wall horizontally vented
gas fue the parts for venting the flue gases, but identifies “special venting systems”, the following requirements shall be satis­fied by the manufacturer:
1. The referenced “special venting sys­tem” 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 in 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 com­pletion of the installation.
dopted by the Board; and
led equipment does not provide
stalla-
WARNING
!
INSTALL THIS FURNACE ONLY IN A LOCATION AND POSITION AS SPECIFIED IN THE LOCATION REQUIREMENTS AND CONSIDER­ATIONS SECTION OF THESE INSTRUCTIONS. PROVIDE ADE­QUATE COMBUSTION AND VENTI­LATION AIR TOTHE FURNACE SPACE AS SPECIFIED IN THE VENTING SECTION OF THESE INSTRUCTIONS.
WARNING
!
PROVIDE ADEQUATE COMBUS­TION AND VENTILATION AIR TO THE FURNACE SPACE AS SPECI­FIED IN THE COMBUSTION AND VENTILATION AIR SECTION OF THESE INSTRUCTIONS.
WARNING
!
COMBUSTION PRODUCTS MUST BE DISCHARGED OUTDOORS. CONNECT THIS FURNACE TO AN APPROVEDVENT SYSTEM ONLY, AS SPECIFIED IN VENT PIPE INSTALLATION SECTION OF THESE INSTRUCTIONS.
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 TION INSTRUCTIONS.
WARNING
!
THIS FURNACE IS NOT APPROVED OR RECOMMENDED FOR INSTALLATION ON ITS BACK, WITH ACCESS DOORS FACING UPWARDS, ORWITH SUPPLY AIR DISCHARGING TO THE RIGHT­HAND SIDE WHEN FACING THE FRONT OF THE FURNACE. SEE FIGURES 6 AND 7 FOR PROPER INSTALLATION OF HORIZONTAL MODELS.
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
!
USE ONLY WITH TYPE OF GAS APPROVED FORTHIS FURNACE. REFER TO THE FURNACE RATING PLATE.
3
WARNING
!
WHEN THIS FURNACE IS INSTALLED IN A RESIDENTIAL GARAGE, IT MUST BE INSTALLED SO THE BURN­ERS AND IGNITION SOURCE ARE LOCATED NO LESS THAN 18 INCH­ES ABOVE THE FLOOR. THIS ISTO REDUCE THE RISK OF IGNITING FLAMMABLE VAPORS WHICH MAY BE PRESENT IN A GARAGE. ALSO,THE FURNACE MUST BE LOCATED OR PROTECTED TO AVOID PHYSICAL DAMAGE BY VEHI­CLES. FAILURETO FOLLOW THESE WARNINGS CAN CAUSE A FIRE OR EXPLOSION, RESULTING IN PROP­ERTY DAMAGE, PERSONAL INJURY OR DEATH.
WARNING
!
USE OF THIS FURNACE IS ALLOWED DURING CONSTRUCTION IF THE FOLLOWING TEMPORARY INSTALLATION REQUIREMENTS ARE MET. INSTALLATION MUST COMPLY WITH ALL INSTALLATION INSTRUCTIONS INCLUDING:
• PROPER VENT INSTALLATION;
• FURNACE OPERATING UNDER THERMOSTATIC CONTROL;
• RETURN AIR DUCT SEALED TO THE FURNACE;
• AIR FILTERS IN PLACE;
• SET FURNACE INPUT RATE AND
TEMPERATURE RISE PER RAT-
ING PLATE MARKING;
• MEANS FOR PROVIDING OUT-
DOOR AIR REQUIRED FOR COM-
BUSTION;
• RETURN AIR TEMPERATURE
MAINTAINED BETWEEN 55°F
(13°C) AND 80°F (27°C); AND;
• CLEAN FURNACE, DUCT WORK
AND COMPONENTS UPON SUB­STANTIAL COMPLETION OF THE CONSTRUCTION PROCESS, AND VERIFY FURNACE OPERATING CONDITIONS INCLUDING IGNI­TION, INPUT RATE,TEMPERA­TURE RISE AND VENTING, ACCORDINGTO THE INSTRUC­TIONS.
WARNING
!
DO NOT JUMPER OR OTHERWISE BYPASS OVERTEMPERATURE OR ANY OTHER LIMITS OR SWITCHES ON THE FURNACE. IF ONE OF THESE LIMITS OR SWITCHES SHOULD TRIP OR OPEN, THE USER IS TO BE INSTRUCTED TO CALL A QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER. FOR MANUALLY RESETABLE SWITCHES,THE USER IS FURTHER INSTRUCTED TO NEVER RESET THE SWITCH, BUT TO CALL A QUALIFIED TECHNICIAN. MANUAL RESET SWITCHES MAY REQUIRE FURTHER CORRECTIVE ACTIONS. FAILURE TO FOLLOWTHIS WARNING COULD RESULT IN CARBON MONOXIDE POISONING, SERIOUS INJURY OR DEATH. IF THE UNIT IS INSTALLED IN A CLOSET,THE DOOR MUST BE CLOSED WHEN MAKINGTHIS CHECK. INSTALLERS AND TECHNI­CIANS ARE INSTRUCTED TO REPLACE ANY LIMIT OR SAFETY SWITCH/DEVICE ONLY WITH IDENTI­CAL REPLACEMENT PARTS.
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 AUTOMO­BILE EXHAUST AND CARBON MONOXIDE (CO), CAN BE DRAWN INTOTHE LIVING SPACETHROUGH LEAKING DUCTS AND UNBAL­ANCED DUCT SYSTEMS CAUSING PERSONAL INJURY OR DEATH (SEE FIGURE 5).
• IF AIR-MOVING EQUIPMENT OR
DUCTWORK IS LOCATED 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 INCLUDING CARBON MONOXIDE FROM MIGRATING INTO THE LIV­ING SPACE.
• IF AIR-MOVING EQUIPMENT OR
DUCTWORK IS LOCATED IN SPACES CONTAINING FUEL BURNING APPLIANCES SUCH AS WATER HEATERS OR BOILERS ­ALL JOINTS, SEAMS, AND OPEN­INGS IN THE EQUIPMENT AND DUCT MUST ALSO BE SEALED TO PREVENT DEPRESSURIZATION OF THE SPACE AND POSSIBLE MIGRATION OF COMBUSTION BYPRODUCTS INCLUDING CAR­BON MONOXIDE INTOTHE LIVING SPACE.
WARNING
!
ALWAYS INSTALL FURNACETO OPERATE WITHIN THE FUR­NACE'S INTENDED TEMPERA­TURE-RISE RANGE WITH A DUCT SYSTEM WHICH HAS AN EXTER­NAL STATIC PRESSURE WITHIN THE ALLOWABLE RANGE, AS SPECIFIED IN DUCTING SECTION OF THESE INSTRUCTIONS. SEE ALSO FURNACE RATING PLATE.
WARNING
!
WHEN A FURNACE IS INSTALLED SO THAT SUPPLY DUCTS CARRY AIR CIRCULATED BYTHE FUR­NACETO AREAS OUTSIDE THE SPACE CONTAINING THE FUR­NACE,THE RETURN AIR SHALL ALSO BE HANDLED BY DUCT(S) SEALED TO THE FURNACE CAS­ING AND TERMINATING OUTSIDE THE SPACE CONTAININGTHE FURNACE.
NOTICE
IMPROPER INSTALLATION, OR INSTALLATION NOT MADE IN ACCORDANCE WITH THE CSA INTERNATIONAL (CSA) CERTIFI­CATION OR THESE INSTRUC­TIONS, CAN RESULT IN UNSATIS­FACTORY OPERATION AND/OR DANGEROUS CONDI-TIONS AND ARE NOT COVERED BY THE UNIT WARRANTY.
NOTICE
IN COMPLIANCE WITH RECOG­NIZED CODES, IT IS RECOM­MENDED THAT AN AUXILIARY DRAIN PAN BE INSTALLED UNDER ALL EVAPORATOR COILS OR UNITS CONTAINING EVAPO­RATOR COILS THAT ARE 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 COIL DRAIN PAN OR A STOPPAGE IN THE PRIMARY CONDENSATE DRAIN PIPING. SEE ACCES­SORIES SECTION OF THESE INSTRUCTIONS FOR AUXILIARY HORIZONTAL OVERFLOW PAN INFORMATION (MODEL RXBM).
WARNING
!
DO NOT EXCHANGE MEMORY CARDS BETWEEN 2 OR MORE DIFFERENT FURNACES. DOING SO COULD RESULT IN UNEX­PECTED OPERATION – INCLUD­ING INADEQUATE AIRFLOW DUR­ING HEATING (AND OTHER MODES OR A LOSS OF HEAT).
4
INSTALLATION CHECK LIST
REFER TO INSTALLATION INSTRUCTIONS
GAS SUPPLY
Adequate pipe size
Correct supply pressure (during furnace operation)
Manifold pressure
No gas leaks
ELECTRICAL
115 V.A.C. supply (Single Circuit)
Polarity observed
Furnace properly grounded (Earth ground)
Adequate wire size
FURNACE INSTALLATION
Adequate clearance to combustibles
Adequate clearance for service (at front)
DUCT STATIC PRESSURE
in. w.c. on heating speed
in. w.c. on cooling spe
Air temperature rise
CONDENSATE LINE
Trap filled with water
Vented
Sloped toward drain
Condensate drain line hoses connected and clamped
ed
TERMINATIONS – DIRECT VENT
VERTICAL
Intake – 12" min. above roof/snow level
Correct relationship – exhaust to intake
VERTICAL – CONCENTRIC (RXGY-E03A)
Intake – 12" min. above roof/snow level
HORIZONTAL – STANDARD (RXGY-D02, -D02A, -D03,
-D03A)
Correct relationship – exhaust to intake
12" min. above grade/snow level
H
ORIZONTAL – ALTERNATE (RXGY-D02, -D02A, -D03,
-D03A, -D04 OR -D04A)
Correct relationship – exhaust to intake
Above anticipated snow level
HORIZONTAL – CONCENTRIC (RXGY-E03A)
12" min. above grade/snow level
Intake “Y” rotated above center
Exhaust sloped toward furnace
VENTING – NON-DIRECT VENT (VERTICAL ONLY)
in. diameter – exhaust pipe
ft. of pipe – exhaust
no. of elbows
TERMINATION – NON-DIRECT VENT (VERTICAL ONLY)
12" min. above roof/snow level
Freeze protection (if necessary)
______ Neutralizer (if needed)
VENTING – DIRECT VENT
in. diameter – intake pipe
in. diameter – exhaust pipe
ft. of pipe – intake air
no. of elbows – intake air
ft. of pipe – exhaust pipe
no. of elbows – exhaust pipe
HORIZONTAL – STANDARD
12" min. above grade/snow level
HORIZONTAL – ALTERNATE
Above anticipated snow level
Model #
Serial #
Date
of installation
5
GENERAL INFORMATION
The RGFE, RGGE and RGJF series furnaces are design-certified by CSA for use with natural and L.P. gases as follows:
• As direct vent, central forced air
furnaces with all combustion air supplied directly to the furnace burners through a special air intake system outlined in these instruc­tions.
• As non-direct, central forced air fur-
nace taking combustion air from the installation area or using air ducted from the outside.
IMPORTANT: Proper application,
installation and maintenance of this
furnace are required if consumers are to receive the full benefits for which they have paid.
Install this furnace in accordance with the American National Standard Z223.1 – latest edition entitled “National Fuel Gas Code” (NFPA54, 90A and 90B) 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 - U.S. 8501 East Pleasant Valley Road Cleveland, Ohio, 44131
Canadian installations must be installed in accordance with CSA, local installation codes and
authorities having jurisdiction.
CSA is available from: CSA International - Canada
178 Rexdale Blvd.
Etobicoke (Toronto), Ontario, Canada M9W-1R3
FIGURE 1
UPFLOW FURNACE RGFE (GAS VALVE MAY BE DIFFERENT THAN SHOWN)
FIGURE 2
DOWNFLOW FURNACE RGGE (GAS VALVE MAY BE DIFFERENT THAN SHOWN)
ITEM
NO. PART NAME
1 CONDENSATE TRAP
2 DOOR SWITCH
3 JUNCTION BOX
4 TRANSFORMER
5 PRESSURE SWITCH ASSEMBLY
6 EXHAUST TRANSITION
7 CONNECTOR
8 MAIN LIMIT
9 EXHAUST AIR PIPE
10 VENT CAP SHIPPING PLUG
11 FLAME SENSOR
12 OVERTEMPERATURE SWITCH
ITEM
NO. PART NAME
13 TOP PLATE
14 BURNER
15 IGNITER
16 COMBUSTION AIR INLET
17 GAS VALVE
18 INDUCED DRAFT BLOWER
19 POWER FACTOR CHOKE
20 INTEGRATED FURNACE CONTROL
21 BLOWER MOTOR
22 BLOWER HOUSING
6
ITEM
NO. PART NAME
1 GAS VALVE
2 PRESSURE SWITCH ASSEMBLY
3 BLOWER HOUSING
4 POWER FACTOR CHOKE
5 BLOWER MOTOR
6 DOOR SWITCH
7 JUNCTION BOX
8 COMBUSTION AIR INLET
9 HALC
10 TOP PLATE
11 VENT CAP SHIPPING PLUG
ST-A1123-01_1 ST-A1123-01_2
12 OUTLET AIR PIPE
ITEM
NO. PART NAME
13 INTEGRATED FURNACE CONTROL
14 TRANSFORMER
15 INDUCED DRAFT BLOWER
16 CONNECTOR
17 EXHAUST TRANSITION
18 CONDENSATE TRAP
19 IGNITER
20 OVERTEMPERATURE SWITCH
21 BURNER
22 FLAME SENSOR
FIGURE 3
DEDICATED HORIZONTAL FURNACE RGJF (GAS VALVE MAY BE DIFFERENT THAN SHOWN)
ITEM
NO. PART NAME
1 GAS VALVE
2 CAPACITOR (FOR INDUCER)
3 LOW PRESSURE SWITCH
4 HIGH PRESSURE SWITCH
5 BLOWER HOUSING
6 POWER FACTOR CHOKE
7 BLOWER MOTOR
8 DOOR SWITCH
9 JUNCTION BOX
10 COMBUSTION AIR INLET
11 HALC
12 TOP PLATE
13 VENT CAP PLUG
ITEM
NO. PART NAME
14 OUTLET AIR PIPE
15 INTEGRATED FURNACE CONTROL
16 TRANSFORMER
17 INDUCED DRAFT BLOWER
18 CONNECTOR
19 EXHAUST TRANSITION
20 CONDENSATE TRAP
21 IGNITER
22 OVERTEMPERATURE SWITCH
23 BURNER
24 FLAME SENSOR
25 FACTORY-INST
ALLED STREET ELBOW
ST-A107801.S01
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 being 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 andair 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 recommend that central duct systems be checked by a qualified contractor for proper balance and sealing.
WARNING
!
DUCT LEAKS CAN CREATE AN UNBALANCED SYSTEM AND DRAW POLLUTANTS SUCH AS DIRT, DUST, FUMES AND ODORS INTOTHE HOME CAUSING PROP­ERTY DAMAGE. FUMES AND ODORS FROM TOXIC,VOLATILE OR FLAMMABLE CHEMICALS, AS WELL AS AUTOMOBILE 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
4).
• IF AIR-MOVING EQUIPMENT OR
DUCTWORK IS LOCATED 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 INCLUDING CAR­BON MONOXIDE FROM MIGRAT­ING INTO THE LIVING SPACE.
• IF AIR-MOVING EQUIPMENT OR
DUCTWORK IS LOCATED IN SPACES CONTAINING FUEL BURNING APPLIANCES SUCH AS WATER HEATERS OR BOIL­ERS - ALL JOINTS, SEAMS, AND OPENINGS IN THE EQUIPMENT AND DUCT MUST ALSO BE SEALED TO PREVENT DEPRES­SURIZATION OF THE SPACE AND POSSIBLE MIGRATION OF COMBUSTION BYPRODUCTS INCLUDING CARBON MONOX­IDE INTO THE LIVING SPACE.
NOTICE
IMPROPER INSTALLATION,OR
INSTALLATION NOT MADE IN ACCORDANCE WITH THE CSA INTERNATIONAL (CSA) CERTIFICA­TION OR THESE INSTRUCTIONS, CAN RESULT IN UNSATISFACTORY OPERATION AND/OR DANGEROUS CONDI-TIONS AND ARE NOT COV­ERED BY THE UNIT WARRANTY.
NOTICE
IN COMPLIANCE WITH RECOG­NIZED CODES, IT IS RECOMMEND-
ED THAT AN AUXILIARY DRAIN PAN BE INSTALLED UNDER ALL EVAPO­RATOR COILS OR UNITS CONTAIN­ING EVAPORATOR COILS THAT ARE LOCATED IN ANY AREA OF A STRUCTURE WHERE DAMAGE TO THE BUILDING OR BUILDING CON-
TENTS MAY OCCUR AS A RESULT
OF AN OVERFLOW OF THE COIL
DRAIN PAN OR A STOPPAGE IN THE
PRIMARY CONDENSATE DRAIN PIP-
ING. SEE ACCESSORIES SECTION
OF THESE INSTRUCTIONS FOR
AUXILIARY HORIZONTAL OVER-
FLOW PAN INFORMATION (MODEL
RXBM).
FIGURE 4
MIGRATION OF DANGEROUS SUBSTANCES, FUMES, AND ODORS INTO LIVING SPACES
RECEIVING
Immediately upon receipt, all cartons
and contents should be inspected for
transit damage. Units with damaged
cartons should be opened immedi-
ately. 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 appli­cations.
• 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 edi-
tions 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 sys­tems.
• The equipment has been evaluat-
ed in accordance with the Code of Federal Regulations, Chapter XX, Part 3280.
8
LOCATION REQUIREMENTS AND CONSIDERATIONS
GENERAL INFORMATION
!
CAUTION
DO NOT USE THIS FURNACE DURING CONSTRUCTION IF AIR LADEN CORROSIVE COM­POUNDS ARE PRESENT SUCH AS CHLORINE AND FLUORINE. OTHERWISE, PROVISIONS MUST BE TAKEN TO PROVIDE CLEAN, UNCONTAMINATED COMBUSTION AND VENTILA­TION AIR TO THE FURNACE. FURNACE COMBUSTION AND VENTILATION AIR CONTAMI­NATED WITHTHESE COM­POUNDS FORMS ACIDS DUR­ING COMBUSTION WHICH COR­RODES THE HEAT EXCHANGER AND COMPONENT PARTS. SOME OF THESE CONTAMI­NANTS ARE FOUND IN, BUT NOT LIMITED TO, PANELING, DRY WALL, ADHESIVES, PAINTS, STAINS, VARNISHES, SEALERS, AND MASONRY CLEANING MATERIALS.
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
!
WHEN THIS FURNACE IS INSTALLED IN A RESIDENTIAL GARAGE, IT MUST BE INSTALLED SO THE BURNERS AND IGNITION SOURCE ARE LOCATED NO LESS THAN 18 INCHES ABOVE THE FLOOR. THIS IS TO REDUCE THE RISK OF IGNITING FLAMMABLE VAPORS WHICH MAY BE PRESENT IN A GARAGE. ALSO,THE FURNACE MUST BE LOCATED OR PROTECTED TO AVOID PHYSICAL DAMAGE BY VEHICLES. FAILURE TO FOL­LOWTHESE WARNINGS CAN CAUSE A FIRE OR EXPLOSION, RESULTING IN PROPERTY DAM­AGE, PERSONAL INJURY OR DEATH.
1. IMPORTANT: If installing the unit
over a finished ceiling or living
area, be certain to install an auxil-
iary condensate drain pan under the entire unit. Extend this auxil- iary drain pan under any evapora­tor coil installed with the furnace and the open portion of the con-
densate drain assembly. See
“Condensate Drain/Neutralizer”
section for more details.
2. IMPORTANT: If using a cooling
evaporator coil with this furnace. Be sure the air passes over the
heat exchanger 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 sion and eventual failure.
3. IMPORTANT: Install the furnace
level. If it is not level, condensate cannot drain properly, possibly causing furnace shut down.
NOTE: These furnaces are approved for installation in attics, as well as alcoves, utility rooms, closets and crawlspaces. Make provisions to pre-
vent freezing of condensate.
4. IMPORTANT: If this furnace is
installed in a garage, attic or any other unconditioned space, a self­regulating heat tape must be installed around the condensate trap and along the entire length of the condensate drain in the uncon­ditioned space.
The heat tape should meet the fol­lowing requirements:
a. The heat tape must be UL listed. b. Install the heat tape per the
c. The heat tape should be rated
FIGURE 5
DOWNFLOW HORIZONTAL FURNACE WITH HEAT TAPE ON CONDENSATETRAP
DRAIN PIPE
A086701
tubes resulting in corro-
manufacturer’s instructions for the entire length of drain pipe in the unconditioned space.
at 3 or 5 watts per foot at 120V.
SUPPLY AIR
HEAT TAPE
TRAP
5. IMPORTANT: If installing in a
utility room, be sure the door is wide enough to:
a. allow the largest part of the
furnace to pass; or
b. allow any other appliance
(such as a water heater) to pass.
6. Install the furnace level and plumb. If it is not level, conden­sate cannot drain properly, possi­bly causing furnace to shut down.
IMPORTANT: Do not attempt to twin the modulating furnace. The charac­teristics of the ECM blower motor preclude twinning applications.
RETURN AIR
9
FIGURE 6
DOWNFLOW/HORIZONTAL FURNACE INSTALLED IN HORIZONTAL POSITION W/SUPPORT BRACKETS
!
THIS FURNACE IS NOT APPROVED OR RECOMMENDED FOR INSTALLATION ON ITS BACK, WITH ACCESS DOORS FACING UPWARDS, ORWITH SUPPLY AIR DISCHARGING TO THE RIGHT
GAS PIPE
TRAP
CAUTION
SUPPLY AIR
INTAKE VENT
ELECTRICAL CONDUIT
EXHAUST VENT
RETURN AIR
TH
E FOLLOWING MODELS INCLUDE THE ADDITIONAL BRACKET (WHICH MUST BE REMOVED) ON THE BLOWER ASSEMBLY:
RGFE/RGGE/RGJF-09EZCMS RGFE/RGGE/RGJF-10EZCMS RGFE/RGGE/RGJF-12ERCMS
HAND SIDE WHEN FACING THE FRONT OF THE FURNACE.
SEE FIGURES 6 AND 7 FOR PROP­ER INSTALLATION OF HORIZON­TAL MODELS.
FIGURE 7
REMOVING SHIPPING BRACKET
CLEARANCE ­ACCESSIBILITY
The design of forced air furnaces with models as listed in the tables under Figures 9 and 10 are certified by CSA Laboratories 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.
FOR PURPOSES OF SERVICING THIS APPLIANCE, ACCESSIBILITY CLEARANCES, WHERE GREATER, SHOULD TAKE PRECEDENCE OVER FIRE PROTECTION CLEARANCES.
A086801
WARNING
!
FURNACES MUST NOT BE INSTALLED DIRECTLY ON CARPET, TILE OR OTHER COMBUSTIBLE MATERIAL. INSTALLATION ON A COMBUSTIBLE MATERIAL OTHER THAN WOOD FLOORING MAY RESULT IN FIRE CAUSING DAM­AGE, PERSONAL INJURY OR DEATH.
-GGE FURNACES MAY NOT
BE INSTALLED DIRECTLYTO A COM­BUSTIBLE FLOOR. A SPECIAL FLOOR BASE IS REQUIRED.
-GFE upflow furnaces and -GGE downflow furnaces are designed and certified for installation on combustible (wood only) floors.
-GGE downflow furnaces may be installed on a cased evaporator coil mounted on a combustible (wood only) floor or (for installations with­out an evaporator coil) installed on a special base for combustible floors mounted to a combustible (wood only) floor.The nece
ssary floor base for installing a -GGE fur­nace in the downflow configuration to a combustible (wood only) floor is an accessory sold through fin­ished goods. Following is a list of floor base models by furnace input size (see Figure 8).
RGGE
Furnace Special Base For
BTU’s Combustible Floors
60, 75 RXGC-B17
90, 105 RXGC-B21
120 RXGC-B24
Upflow furnaces are shipped with a bottom closure panel installed. When bottom return air is used, remove the panel by removing the two screws attaching the panel to the front base angle. See filter sec­tion for details (see Figure 12).
92-24379-01
!
CAUTION
SOME MODELS HAVE A SHIPPING BRACKET INSTALLED TO PRO­TECT THE BLOWER ASSEMBLY DURING SHIPPING.
LOCATE AND REMOVE THE SHIP­PING BRACKET FROM THE SIDE OF THE BLOWER HOUSING BEFORE OPERATING UNIT. SEE FIGURE 7.
10
FIGURE 8
BASE FOR COMBUSTIBLE FLOORS
SITE SELECTION
1. Select a site in the building near
the center of the proposed, or exist-
ing, duct system.
2. Give consideration to the vent sys­tem piping when selecting the fur­nace location. Vent from the fur­nace to the termination with mini­mal length and elbows.
3. Locate the furnace near the exist-
ing gas piping. If running a new gas
line, locate the furnace to minimize
the length and elbows in the gas piping.
4. Locate the furnace to maintain proper clearance to combu as shown in Figures 9, 10 & 11.
stibles
!
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 MATERIALS INCLUDING GASOLINE AND OTHER FLAMMABLE 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 A USED AS A BROOM CLOSET OR FOR ANY OTHER STORAGE PUR­POSES.
REA MUST NOT BE
11
FIGURE 9
PHYSICAL DIMENSIONS AND CLEARANCE TO COMBUSTIBLES, UPFLOW MODELS
A039201
RGFE
UPFLOW MODELS
AIRFLOW
NOTE: For 1800 or more CFM, both side
returns must be used when not using a
bottom return configuration.
12
AO39201
FIGURE 10
DIMENSIONS AND CLEARANCES TO COMBUSTIBLES, DOWNFLOW MODELS
RGGE
(Downflow Configuration)
FOR MODELS INSTALLED AS DOWNFLOW ONLY
AIRFLOW
13
FIGURE 11
DIMENSIONS AND CLEARANCES TO COMBUSTIBLES, HORIZONTAL MODELS
NOTE: For 1800 or more CFM, both side
returns must be used when not using a
FACING THE FRONT OF THE FUR-
ONLY BE INSTALLED SO AS WHEN
IMPORTANT:THIS FURNACE MAY
NACE, SUPPLY AIR IS DIS-
CHARGED ON THE LEFT HAND
SIDE.
(RETURN)(SUPPLY)
bottom return configuration.
INSTALLED AS
configuration.)
(FUEL CODE HB ONLY)
HORIZONTAL ONLY
RGJF (ALL) & RGGE
14
on RGGE models – only
(Be sure to check the fuel code
furnaces with HB fuel codes
can be installed in horizontal
AIRFLOW
DUCTING
Proper airflow is required for the correct operation of this furnace. Too little airflow can cause erratic oper­ation and can damage the heat
exchanger. The supply and return duct
must carry the correct amount of air for heating and cooling if summer air con­ditioning is used.
Size the ducts according to acceptable
industry standards and methods. The total static pressure drop of the supply
and return duct should not exceed 0.2"
w.c.
WARNING
!
NEVER ALLOWTHE PRODUCTS OF COMBUSTION FROMTHE FLUE TO ENTER THE RETURN AIR DUCTWORK ORTHE CIRCU­LATED AIR SUPPLY. ALL RETURN DUCTWORK MUST BE ADE­QUATELY SEALED AND SECURED TO THE FURNACE
WITH SHEET METAL SCREWS;
AND JOINTS,TAPED. SECURE ALL OTHER DUCT JOINTS WITH APPROVED CONNECTIONS AND SEAL AIRTIGHT.WHEN A FUR­NACE IS MOUNTED ON A PLAT­FORM WITH RETURN THROUGH THE BOTTOM, IT MUST BE SEALED AIRTIGHT BETWEEN THE FURNACE ANDTHE RETURN AIR PLENUM.THE FLOOR OR PLATFORM MUST PROVIDE PHYSICAL SUPPORT OFTHE FURNACEWITHOUT SAGGING, CRACKS, OR GAPS AROUND THE BASE, PROVIDING A SEAL BETWEEN THE SUPPORT AND THE BASE.
FAILURE TO PREVENT PROD­UCTS OF COMBUSTION FROM BEING CIRCULATED INTOTHE LIVING SPACE CAN CREATE POTENTIALLY HAZARDOUS CON­DITIONS, INCLUDING CARBON MONOXIDE POISONINGTHAT COULD RESULT IN PERSONAL INJURY OR DEATH.
DO NOT, UNDER ANY CIRCUM­STANCES, CONNECT RETURN OR SUPPLY DUCTWORK TO OR FROM ANY OTHER HEAT PRO­DUCING DEVICE SUCH AS A FIREPLACE INSERT, STOVE, ETC. DOING SO MAY RESULT IN FIRE, CARBON MONOXIDE POISONING, EXPLOSION, PERSONAL INJURY OR PROPERTY DAMAGE.
IMPORTANT: Some high efficiency filters
have a greater than normal resistance to airflow. This can adversely affect furnace operation. Be sure to check airflow if using any filter other than the factory-pro­vided filter.
UPFLOW UNITS
1. Position the unit to minimize long
runs of duct or runs of duct with many turns and elbows.
WARNING
!
UPFLOW FURNACE: BASE PLATE MUST BE INSTALLED IN THE FURNACE BOTTOM WHEN USING SIDE AIR RETURN. FAILURE TO INSTALL A BASE PLATE COULD CAUSETHE PRODUCTS OF COMBUS­TION TO CIRCULATE INTOTHE LIVING SPACE AND CREATE POTENTIALLY HAZARDOUS CONDITIONS, INCLUD­ING CARBON MONOXIDE POISONING OR DEATH.
A SOLID METAL
2. Open the return air compartment.
a. If using side return air, do not
remove the bottom base.
b. Cut an opening in the side .
The opening should be cut the full width of the knockouts on the
unit.
NOTE: When using side return, return air plenums, RXGR-C17B, C21B and C24B are available from the factory.
c. Remove the bottom base, if
using bottom return air. Remove the panel by remov­ing the two screws attaching the base to the front base angle. See Figure 12.
NOTE: Where the maximum
airflow is 1800 CFM or more, both sides or the bottom must be used for return air.
3. Connect the return duct or return air cabinet to the unit. Make the connection air tight to prevent entra
ining combustion gases from
an adjacent fuel-burning appli-
ance.
4. Be sure to have adequate
space for the unit filter. NOTE: DO NOT take return air
from bathrooms, kitchens, furnace rooms, garages, utility or laundry rooms, or cold areas. DO NOT use a rear air return.
5. 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.
6. Connect the supply air plenum to the furnace plenum opening.
IMPOR
TANT: If a flexible duct
connector must be used, it MUST be rated for a minimum tempera­ture of 250°F. continuous.
FIGURE 12
BOTTOM PANEL REMOVAL
NOTE: FILTERAND FILTER-ROD ARE SHIPPED ON TOP OF SOLID BOTTOM. REMOVE FILTER AND FILTER ROD TO ACCES SOLID BOTTOM
ADS-5422-01
15
DOWNFLOW UNITS
1. Position the unit to minimize long
runs of duct or runs of duct with many turns and elbows.
2. 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.
3. If installing on a combustible floor
and not using an air conditioning plenum, install the special base for
combustible floors. See Figure 8.
!
WARNING
THE DOWNFLOW FURNACE DESIGN IS CERTIFIED FOR INSTALLATION ON A NON-COMBUSTIBLE FLOOR USE THE SPECIAL BASE SPECIFIED ON THE FURNACE CLEARANCE LABEL. FAILURE TO INSTALLTHE SPECIAL BASE MAY RESULT IN FIRE, PROPERTY DAMAGE, PER­SONAL INJURY OR DEATH.THIS SPECIAL BASE IS SHIPPED FROM THE FACTORY AS AN ACCESSORY.
4. Connect the furnace to the supply air plenum.
5. Connect the return air ducting to the return air opening at the top of the unit. Make the connection air tight to prevent entraining combus-
tion gases from an adjacent fuel-
burning appliance.
6. Be sur
eto have adequate space
for the unit filter. NOTE: DO NOT take return air
from bathrooms, kitchens, furnace rooms, garages, utility or laundry rooms, or cold areas.
.
Return air can come from : (1) out­side the building, (2) from return air ducting from several inside rooms, or (3) a combination of the two. When using
outside air, design and adjust the sys-
tem to maintain a return air temperature above 55°F during the heating season. If return air comes from both inside and outside the building, design the ducting system with a diverting damper so that the volume of return air entering the fur­nace equals that which would normally enter thr furnace. Any duct opening pulling return air from the outside must not be any higher nor closer than 10 feet to the fur-
nace exhaust vent.
ough the return air intake of the
16
SUPPLY AIR SENSOR
Each furnace comes shipped from the factory with a supply air sensor. Install the sensor, in the supply air plenum trunk, with two, field supplied, #8 sheet metal screws, using the following guide­lines:
1. 12” downstream of the evaporator coil, if installed.
2. If no evaporator coil is used, locate the sensor out of direct line-of-site of the heat exchanger and not clos­er than 18” downstream of the fur­nace outlet.
3. Attach the supply air sensor wires onto the terminals marked “SA Sensor” on the integrated furnace control board (See Figure 13).
4. Do not extend the supply-air sensor
wire. NOTE: Improper placement of the
supply air sensor can adversely affect furnace temperature rise.
NOTE: In downflow circumstances where building construction does not allow for the placement of the sensor to fall within these parameters, the supply air sensor should not be connected. This means that the furnace will run under default parameters. When run­ning under default parameters, the “82” code will appear for 90 seconds. After that, the fault code will be stored in the control board’s memory and will show only upon power cycling. Default airflow
parameters can be manually adjusted.
See section discussing Integrated Furnace Control (IFC) board in this manual.
For communicating systems, the supply air se off so that a fault code will not be displayed at all. This can be done in the furnace setup menu of a commu­nicating thermostat. See the section of this manual titled Communicating Systems under sub-section titled Furnace User Menus (Setup).
nsor input can be turned
FIGURE 13
SUPPLY AIR SENSOR TERMINALS
17
VENTING AND COMBUSTION AIR PIPING
GENERAL INFORMATION
WARNING
!
READ AND FOLLOW ALL INSTRUCTIONS IN THIS SEC­TION. FAILURETO PROPERLY VENT THIS FURNACE OR PRO­TECT IT FROM INADEQUATE COMBUSTION AIR CAN CAUSE CARBON MONOXIDE POISON­ING, AN EXPLOSION OR FIRE, RESULTING IN PROPERTY DAM­AGE, PERSONAL INJURY OR DEATH.
OVERTEMPERATURE SAFETY SWITCHES
Furnaces are equipped with safety switches in the burner compartment to protect against over temperature condi­tions. If a switch is tripped, it must be manually reset.
WARNING
!
DO NOT JUMPER OVERTEM­PERATURE OR ANY OTHER SAFETY SWITCHES! IF ONE OF THESE OVER TEMPERATURE SWITCHES SHOULD TRIP, CALL A QUALIFIED INSTALLER, SER­VICE AGENCY OR THE GAS SUPPLIER. DO NOT RESET THE SWITCHES WITHOUTTAKING CORRECTIVE ACTION. FAILURE TO DO SO CAN RESULT IN CAR­BON MONOXIDE POISONING OR DEATH. IF THIS UNIT IS INSTALLED IN A CLOSET, THE DOOR MUST BE CLOSEDWHEN MAKING THIS CHECK.
REPLACETHE OVER TEMPERA­TURE SAFETY SWITCHES ONLY WITH THE IDENTICAL REPLACE­MENT PART.
WARNING
!
IN CANADA, PRODUCTS CERTI­FIED FOR INSTALLATION AND INTENDED TO BE VENTEDWITH PLASTIC VENT SYSTEMS (PVC, CPVC) MUST USE VENT SYS­TEMS THAT ARE CERTIFIED TO THE STANDARD FOR TYPE BH GAS VENTING SYSTEMS, ULC S636.
THE COMPONENTS OF THE CERTIFIED MATERIAL MUST NOT BE INTERCHANGED WITH OTHER VENT SYSTEMS OR UNLISTED PIPE/FITTINGS.
PLASTIC COMPONENTS AND SPECIFIED PRIMERS AND GLUES OF THE CERTIFIED SYS­TEM MUST BE FROM A SINGLE SYSTEM MANUFACTURER AND NOT INTERMIXED WITH OTHER SYSTEM MANUFACTURER’S PARTS.
NOTE: INLET AIR PIPING IS NOT CONSIDERED TO BE A PART OF THE “VENTING SYSTEM”.THE REQUIREMENT THATVENT MATE­RIAL BE CERTIFIED TO ULC S636 DOES NOT APPLY TO INLET AIR PIPING.
INSTALLATION WITH PRE-EXISTING VENT SYSTEMS
When the installation of this furnace
replaces an existing furnace that is
removed from a vent system serving other appliances (such as a water
heater), the existing vent system is likely
to be too large to proper remaining attached appliances.
Follow the steps below with each appli­ance remaining connected to the origi­nal common vent system. Place the appliance to be tested in operation, while the other appliances remaining connected to the common vent system are not in operation. Test the operation of each appliance individually by the fol­lowing method.
1. Permanently seal any unused openings in the common venting system.
2. Visually inspect the venting system f
or proper size and horizontal pitch
and determine that there is no blockage, restriction, leakage, cor­rosion or other deficiencies which could cause an unsafe condition.
3. If practical, close all building doors, windows and all doors between the space where the appliances remaining connected to the com­mon venting system are located. Turn on clothes dryers and any appliance not connected to the
ly vent the
common venting system. Turn
on any exhaust fans, such as
range hoods and ba
exhausts, so they will operate at maximum speed. Do 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 each appliance that remains con­nected to the common venting system properly vents (when tested 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,
resize the common venting sys-
tem. Refer to latest edition of the National Fuel Gas Code ANSI Z223.1, or the CSA-GAMA vent­ing tables for Category I fur­naces
.
NOTE: For U.S. installations only. Schedule 40 ABS-DWV pipe and fittings may be used as an alternate to PVC pipe for the combustion air inlet and vent pipes.
NOTE: For U.S. installations only. Cellular core PVC is also approved for use. It must be schedule 40 PVC-DWV cellular pipe manufactured under ASTM F-891.
throom
that
18
JOINING PIPE AND FITTINGS
WARNING
!
PVC SOLVENT CEMENTS AND PRIMERS ARE HIGHLY FLAM­MABLE. PROVIDE ADEQUATE VENTILATION AND DO NOT ASSEMBLE COMPONENTS NEAR HEAT SOURCE OR AN OPEN FLAME. DO NOT SMOKE. AVOID SKIN OR EYE CONTACT. OBSERVE ALL CAU­TIONS AND WARNINGS PRINT­ED ON MATERIAL CONTAIN­ERS. FAILURETO FOLLOW THESE GUIDELINES MAY RESULT IN FIRE, EXPLOSION OR ASPHYXIATION CAUSING PERSONAL INJURY OR DEATH.
All pipe, fittings, solvent cement, primers and procedures must conform to American National Standard Institute and American Society for Testing and Materials (ANSI/ASTM) standards as shown below:
IMPORTANT: The plastic combustion air and venting components are MADE of PVC. If using ABS piping, ensure that the solvent cement is compatible for
joining PVC to ABS components or use
a mechanical connection that can with­stand the vent temperatures and is cor­rosion resistant.
CEMENTING JOINTS
Properly seal all joints in the PVC vent
using the following materials and proce­dures:
PVC CLEANER-PRIMER AND PVC MEDIUM-BODY SOLVENT CEMENT
IMPORTANT: After cutting pipe, remove all ragged edges and burrs. This is important to prevent increase in pres­sure drop throughout the system.
1. Cut pipe end square. Chamfer edge of pipe. Clean fitting socket and
pipe joint area of all dirt, grease and
moisture.
2. After checking pipe and socket for proper fit, wipe socket cleaner-primer. Apply a liberal coat of primer to inside sur­face of socket and outside of pipe. READ INSTRUCTIONS INCLUDED WITH THE PRIMER FOR PROPER INSTALLATION.
and pipe with
3. Apply a thin coat of cement evenly in the socket. Quickly apply a heavy coat of cement to the pipe end and insert pipe into fitting with a slight twisting move­ment until it bottoms out.
NOTE: Cement must be fluid; if not, recoat.
4. Hold the pipe in the fitting for 30 seconds to prevent the tapered socket from pushing the pipe out of the fitting.
5. Wipe all excess cement from the joint with a rag. Allow 15 minutes
before handling. Cure time varies according to fit, temperature and humidity.
NOTE: Stir the solvent cement frequently while using. Use a natural bristle, one inch wide brush or the applicator supplied with the can.
IMPORTANT: For Proper Installation DO NOT use solvent cement that has become curdled, lumpy or thickened. DO NOT thin. Observe shelf precau­tions printed on containers. For appli­cation below 32°F, use only low-tem­perature-type solvent cement.
For correct installation of the vent pipe, follow the instructions provided by the manufacturers of the pipe, primer and solvent.
PIPE & FITTING MATERIAL
Schedule 40 PVC (Pipe) D1785 Schedule 40 PVC (Cellular Core Pipe) F891 Schedule 40 PVC (Fittings) D2466 SDR-21PVC (Pipe) D2241 SDR-26 PVC (Pipe) D2241 Schedule 40 ABS Cellular Core DWV (Pipe) F628 Schedule 40 ABS (Pipe) D1527 Schedule 40 ABS (Fittings) D2468 ABS-DWV (Drain Waste & Vent)
(Pipe & Fittings) PVC-DWV (Drain Waste & Vent)
(Pipe & Fittings)
ASTM
SPECIFICATION
D2661
D2665
19
NON-DIRECT VENT PIPE INSTALLATION
(FOR VERTICALTERMINATIONS ONLY)
COMBUSTION AIR
WARNING
!
ALWAYS PROVIDE THIS FUR­NACE AND ANY OTHER FUEL BURNING APPLIANCE WITH ENOUGH FRESH AIR FOR PROPER COMBUSTION AND VENTILATION OF THE FLUE GASES. MOST BUILDING CODES REQUIRE THAT OUT­SIDE AIR BE SUPPLIED INTO THE FURNACE AREA. FAIL­URE TO DO SO CAN CAUSE DEATH FROM CARBON MONOXIDE POISONING.
Provide adequate facilities for com­bustion and ventilation air in accor­dance with section 5.3, Air for Combustion and Ventilation of the National Fuel Gas Code, ANS Z223.1 - latest edition; CAN/CGA B149.1 and .2, or applicable provi­sions of the local building codes. These combustion and ventilation facilities must not be obstructed.
IMPORTANT: Air for combustion and ventilation must not come from a corrosive atmosphere. Any furnace failure due to corrosive elements in
the atmosphere is excluded from
warranty coverage.
I
The following types of installation (but not limited to the following) REQUIRE OUTDOOR AIR for combustion, d
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 substances
in the combustion air supply (but not limited to the following) also REQUIRE OUTDOOR AIR for com­bustion:
• Permanent wave solutions
• Chlorinated waxes and cleaners
• Chlorine-based swimming pool
chemicals
• Water softening chemica
• De-icing salts or chemicals
• Carbon Tetrachloride
• Halogen type refrigerants
• Cleaning solvents (such as per-
chloroethylene)
• Printing inks, paint removers,
varnishes, etc.
• Hydrochloric acid
• Cements and glues
• Anti-static fabric softeners for
clothes dryers
• Masonry acid washing materials
Combustion air must be free of acid forming chemicals such as sulphur, fluorine, and chlorine. These ele­ments are found in aerosol sprays, detergents, bleaches, cl vents, air fresheners, 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 produce highly corrosive condensate.
eaning sol-
ue
ls
WARNING
!
ALL FURNACE INSTALLATIONS MUST COMPLY WITHTHE NATIONAL FUEL GAS CODE AND LOCAL CODES TO PROVIDE ADE­QUATE COMBUSTION AND VENTI­LATION AIR FOR THE FURNACE. FAILURE TO DO SO CAN RESULT IN EXPLOSION, FIRE, PROPERTY DAMAGE, CARBON MONOXIDE POISONING, PERSONAL INJURY OR DEATH.
Combustion air requirements are determined by whether the furnace is in an open (unconfined) area or in a confined space such as a closet or small room.
FURNACE LOCA UNCONFINED 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 appliances in the space. Here are a
few examples of the room sizes
required for different inputs. The
sizes are based on 8 foot ceilings.
See Table 1.
TABLE 1
UNCONFINED SPACE DIMENSIONS
BTUH Minimum Sq. Feet Typical Room Size
Input With 8 foot Ceiling
60,000 375 15' x 25' OR 19' x 20'
75,000 469 15' x 32' OR 20' x 24'
90,000 563 20' x 28' OR 24' x 24'
105,000 657 20' x 33' OR 26' x 25'
120,000 750 25' x 30' OR 24' x 32'
If the open space containing the fur­nace is in a building constructed to severely limit outside air infiltration (contemporary energy efficient con­struction methods), o still be required for the furnace to operate and vent properly. Outside
air openings should be sized the
same as for a confined space.
TED IN AN
utside air may
20
FURNACE LOCATED IN A CONFINED SPACE.
A confined space (any space small­er than shown before as “uncon­fined”) must have openings into
the space, which are located in accordance with the require­ments set forth in the following subsections A and B. The open-
ings must be sized by how they
connect to the heated area or to the outside, and by the input of all appliances in the space.
If the confined space is within a building with tight construction, combustion air must be taken fro
m outdoors or areas freely communi­cating with the outdoors.
TABLE 2
INDOOR AIR OPENING DIMENSIONS
BTUH Free Area
Input Each Opening
60,000 100 square inches
75,000 100 square inches
90,000 100 square inches
105,000 105 square inches
120,000 120 square inches
FIGURE 14
AIR FROM HEATED SPACE
A. USING INDOOR AIR FOR
COMBUSTION
IMPORTANT: DO NOT take air 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 heated area (see Figure 14), 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. See Table 2.
B. USING OUTDOOR AIR FOR
COMBUSTION
IMPORTANT: Do not take air from
an attic space that is equipped with power ventilation.
The confined space must communi­cate with the outdoors in accordance with Methods 1 or 2. The minimum dimension of air openings shall not be less than 3 inches. Where ducts are used, they shall be of the same cross-sectional area as the free area of the openings to which they con­nect.
Method 1 Two permanent openings, one locat-
ed within 12 inches of the top and one located within 12 inches of the bottom of the enclosure, shall be pro-
vided. The openings shall communi-
cate directly, or by ducts, with the out-
doors or spaces (crawl or attic) that
freely communicate with the out-
doors.
a. Where directly communicating
with the outdoors or where com­municating to the outdoors through vertical ducts as shown in Figure 15, each opening shall have a minimum free area of 1 square inch for each 4000 BTUH of total appliance input rating in the enclosure. See Table 3.
A077501
TABLE 3
VERTICAL OUTDOOR AIR OPENING DIMENSIONS
BTUH Free Area Round Pipe
Input Each Opening Size
60,000 15.00 square inches 5"
75,000 18.75 square inches 5"
90,000 22.50 square inches 6"
105,000 26.25 square inches 6"
120,000 30.00 square inches 7"
21
b. Where communicating with out-
doors through horizontal ducts,
each opening shall have a minimum free area of 1 square inch for each 2000 BTUH of total input rating of all equipment in the enclosure. See Table 4 and Figure 16.
TABLE 4
HORIZONTAL OUTDOOR AIR OPENING DIMENSIONS
BTUH Free Area Round Pipe
Input Each Opening Size
60,000 30.00 square inches 7"
75,000 37.50 square inches 7"
90,000 45.00 square inches 8"
105,000 52.50 square inches 9"
120,000 60.00 square inches 9"
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 outdoors or communicate through a vertical or
horizontal duct to the outdoors or
spaces (crawl or attic) that freely communicate with the outdoors, and shall have a minimum free area of:
a. One square inch for each 3000
BTUH of the total input rating of all equipment located in the enclosure (see Table 5), and
Combustion air openings must not be restricted in any manner.
CONSULT LOCAL CODES FOR SPE­CIAL REQUIREMENTS.
FIGURE 15
AIR FROM ATTIC/CRAWL SPACE
A077601
FIGURE 16
OUTSIDE AIR USING A HORIZONTAL INLET & OUTLET
b. Not less than the sum of the
areas of all vent connectors in the confined space.
If the unit is installed where there is
an exhaust fan, sufficient ventilation
must be provided to prevent the
exhaust fan from creating a negative
pressure.
TABLE 5
VERTICAL OR HORIZONTAL OUTDOOR AIR OPENING DIMENSIONS
BTUH Free Area Round Pipe
Input Each Opening Size
60,000 20.00 square inches 6" 75,000 25.00 square inches 6"
90,000 30.00 square inches 7" 105,000 35.00 square inches 7" 120,000 40.00 square inches 8"
22
A077701
INSTALLATION GUIDELINES
IMPORTANT: When installed as a non-
direct furnace, only vertical terminations
are allowed. Do not use horizontal termi-
nations when the furnace is installed with a non-direct vent.
All exhaust vent piping must be installed
in compliance with Part 7, Venting of Equipment, of the latest edition of the National Fuel Gas Code NFPA 54/ANSI A223.1, or CAN/CGA-B149.1 and .2, local codes or ordinances and these instructions.
7. The minimum vent length is 5 feet.
8. All piping through the roof is 2".
When using 3" pipe, reduce to 2" within 18" of the inside of the roof.
9. Vertical through-the-roof installa­tions do not require any special vent termination. Use 2" PVC
pipe extending a minimum of 12
inches above the anticipated level of snow accumulation.
10. Elbows must be a mini
mum of
15” apart.
11. No screens may be used to cover combustion air or
exhaust.
VENTING GUIDELINES - Non-
Direct
Vent
1. IMPORTANT: Do not common vent
with any other appliance. Do not install in the same chase or chim­ney with a metal or high tempera­ture plastic pipe from another gas or fuel-burning appliance unless the required minimum clearances to combustibles are maintained between the PVC pipe and other pipes.
2. Use only medium or long radius
sweep elbows, such as PVC-DWV elbows.
NOTE: For upflow and downflow
installations, extend the exhaust
pipe a minimum of 18" vertically above t
he furnace cabinet before
turning the vent.
3. Vertical vent piping is preferred.
4. Install all horizontal piping as fol-
lows:
• Slope horizontal vent piping
upward a minimum of 1/4" per foot of run so that condensate drains toward the furnace.
• Support horizontal vent piping at
least every four feet. No sags or dips are permitted.
5. Insulate all vent runs through unconditioned spaces where below-
freezing temperatures are expected,
with 1" thick medium density, foil
ced fiber glass or equivalent
fa
Rubatex/Armaflex insulation. For horizontal runs where water may collect and freeze, wrap the vent
pipe with self-regulating, 3 or 5 Watt heat tape. The heat tape must be U.L. listed and installed per the manufacturer’s instructions.
6. All piping between the furnace and the roof penetration is 2" or 3" as specified in Table 6. Table 6 lists the
maximum allowable exhaust vent
pipe length for the number of elbows used, based on the furnace
size.
PORTANT: Use Only standard
IM
vertical terminations when installing the modulating furnace as a non­direct vent appliance.
TABLE 6
NON-DIRECT VENT APPLICATIONS
MAXIMUM ALLOWABLE LENGTH IN FEET OF EXHAUST PIPE
UPFLOW FURNACES RGFE
NUMBER OF ELBOWS
22°, 45° OR 90°
MEDIUM / LONG RADIUS ONLY
1-2 3-4 5-6
40'
120'
20' 120' 110' 110'
35'
120'
15' 120' 105' 105'
30'
120'
10'
120'
95' 95'
FURNACE
INPUT
60,000
75,000
90,000 105,000 120,000
PIPE SIZE
(VERTICAL VENT
TERMINATIONS
ONLY)
TERMINATION
2" 3" 2" 3" 3" 3"
STANDARD STANDARD STANDARD STANDARD STANDARD STANDARD
3" 45' 35' 30'STANDARD
DOWNFLOW AND HORIZONTAL FURNACES RGGE AND RGJF
FURNACE
INPUT
PIPE SIZE
(VERTICAL VENT
TERMINATIONS
ONLY)
TERMINATION
2"
STANDARD
60,000
3" 2"
STANDARD STANDARD
75,000
3"
90,000 105,000 120,000
NOTES:
1. N.R. - NOT RECOMMENDED.
2. MAXIMUM OF 6 ELBOWS MAY BE USED. DO NOT COUNT ELBOWS IN ALTERNATE TERMINATION KIT. MEDIUM OR LONG SWEEP ELBOWS MAY BE USED.
3. A 45 OR 22.5 DEGREE ELBOW IS CONSIDERED ONE ELBOW.
4. CONCENTRIC TERMINATION NO. RXGY-E03A IS FOR THRU-THE-ROOF OR THRU-THE-WALL VENTING.
5. USE KITS RXGY-D02 OR D02A (2") OR RXGY-D03 OR D03A (3") FOR STANDARD OR ALTERNATE THRU-THE-WALL VENTING.
6. USE KITS RXGY-D04 OR D04A FOR ALTERNATE VENTING OF 120,000 BTUH UNITS
7. NO SCREENS MAY BE USED TO COVER COMBUSTION AIR AND EXHAUST.
* A = 17
B = 21” CABINET WIDTH
3" 3" 3" 40' 35' 30'STANDARD
1
2” CABINET WIDTH
STANDARD STANDARD STANDARD
NUMBER OF ELBOWS
22°, 45° OR 90°
MEDIUM / LONG RADIUS ONLY
1-2 3-4 5-6
30'
120'
20'
120'
90' 45'
25'
120'
15'
120'
80' 40'
WITH LONG RUNS.
20'
120'
10'
120'
75' 35'
23
DIRECT VENT PIPE INSTALLATION
WARNING
!
READ AND FOLLOW ALL INSTRUCTIONS IN THIS SEC­TION. FAILURETO PROPERLY VENT THIS FURNACE CAN CAUSE CARBON MONOXIDE POISONING OR AN EXPLOSION OR FIRE, RESULTING IN PROP­ERTY DAMAGE, PERSONAL INJURY OR DEATH.
Direct vent installations require a dedi­cated combustion air and venting sys­tem. All air for combustion is taken from outside and all combustion prod­ucts are discharged to the outdoors.
Therefore, no ventilation or combus­tion air openings are required.
INSTALLATION GUIDELINES
All exhaust piping must be installed in
compliance with Part 7, “Venting of Equipment,” of the latest edition of the National Fuel Gas Code NPFA 54, 90A and 90B ANSI Z223.1-, local codes or ordinances and these instructions.
1. IMPORTANT: Do not common
vent with any other appliance. Do not install in the same chase or chimney with a metal or high tem­perature plastic pipe from another gas or fuel-burning appliance unless the required minimum clearances to maintained between the approved PVC pipe and other pipes.
2. Use only medium or long radius
sweep elbows.
NOTE: For all installations. Extend
the combustion air exhaust pipe a
minimum of 18" vertically above the furnace cabinet before turning the vent.
3. Vertical piping is preferred.
4. Install all horizontal piping as fol-
lows:
• Slope horizontal vent piping
upward a minimum of 1/4" per foot of run so that condensate drains toward the furnace.
• Support h
least every four feet. No sags or dips are permitted.
combustibles are
orizontal vent piping at
TABLE 7
DIRECT VENT APPLICATIONS
MAXIMUM ALLOWABLE LENGTH IN FEET OF EACH EXHAUST PIPE AND INTAKE PIPE
UPFLOW RGFE FURNACES
NUMBER OF ELBOWS
1
22
FURNACE
INPUT
60,000
75,000
90,000
105,000
120,000
PIPE SIZE
2"
3"
2"
3"
3"
3"
3"
TERMINATION
STANDARD
CONCENTRIC
ALTERNATE
STANDARD
CONCENTRIC
ALTERNATE
STANDARD STANDARD
CONCENTRIC
ALTERNATE
STANDARD
CONCENTRIC
ALTERNATE
STANDARD
CONCENTRIC
ALTERNATE
STANDARD
CONCENTRIC
ALTERNATE ALTERNATE
VENT
TERMINATION KIT
RECOMMENDED
RXGY-D02A/G02A
RXGY-E03A/G02A
RXGY-D02A
RXGY-D03A/G02A
RXGY-E03A/G02A
RXGY-D03A RXGY-D02A/G02A RXGY-D0
3A/G02A
RXGY-E03A/G02A
RXGY-D03A RXGY-D03A/G02A
RXGY-E03A/G02A
RXGY-D03A RXGY-D03A/G02A
RXGY-E03A/G02A
RXGY-D03A
RXGY-D03/G02A
RXGY-E03A/G02A
RXGY-D03A
RXGY-D04A
2°, 45° OR 90°
MEDIUM / LONG
RADIUS ONLY
1-2 5-6
3-4
40'
35'
25'
30'
120'
120'
105'
110'
15'
20'
120'
120'
100'
95'
110' 105' 95'
50' 40' 35'
110' 105' 95'
50' 40' 35'
45' 35' 30'
45' 35' 30'
105' 95' 90'
DOWNFLOW AND DOWNFLOW/HORIZONTAL RGGE AND RGJF
NUMBER OF ELBOWS
1
22
FURNACE
INPUT
60,000
75,000
90,000
105,000
120,000
NOTES:
1. N.R. - NOT RECOMMENDED.
2. MAXIMUM OF 6 ELBOWS MAY BE USED. DO NOT COUNT ELBOWS IN ALTERNATE TERMINATION KIT. MEDIUM OR LONG SWEEP ELBOWS MAY BE USED.
3. A 45 OR 22.5 DEGREE ELBOW IS CONSIDERED ONE ELBOW.
4. CONCENTRIC TERMINATION NO. RXGY-E03 IS FOR THRU-THE-ROOF OR THRU-THE-WALL VENTING.
5. USE KITS RXGY-DO2 (2") OR RXGY-D03 (3") FOR STANDARD OR ALTERNATE THRU-THE-WALL VENTING.
6. USE KITS RXGY-D04 FOR ALTERNATE VENTING OF 120,000 BTUH UNITS WITH LONG RUNS.
7. NO SCREENS MAY BE USED TO COVER COMBUSTION AIR AND EXHAUST.
* A = 171⁄2” CABINET WIDTH
B = 21” CABINET WIDTH
** ALTERNATE VENT NOT PERMITTED ON DOWNFLOW/HORIZONTAL MODELS.
PIPE SIZE
2"
3"
2"
3"
3"
3"
3"
TERMINATION
STANDARD
CONCENTRIC
STANDARD
CONCENTRIC
STANDARD
CONCENTRIC
STANDARD
CONCENTRIC
STANDARD
CONCENTRIC
STANDARD
CONCENTRIC
STANDARD
CONCENTRIC
VENT
TERMINATION KIT
RECOMMENDED
RXGY-D02A/G02A
RXGY-E03A/G02A
RXGY-D03A/G02A
RXGY-E03A/G02A
RXGY-D02A/G02A
RXGY-E03A/G02A
RXGY-D03A/G02A
RXGY-E03A/G02A
RX
GY- D03A/G02A
RXGY-E03A/G02A
RXGY-D03A/G02A
RXGY-E03A/G02A
RXGY-D03A/G02A
RXGY-E03A/G02A
2°, 45° OR 90°
MEDIUM / LONG
RADIUS ONLY
1-2 5-6
3-4
30' 25' 20'
30' 25' 20' 120' 120' 120' 120' 120' 120'
15'
20'
15'
20'
120'
120'
120'
120'
70'
60'
70'
60'
45'
40'
45'
40'
40'
35'
40'
35'
30'
20'
120'
100'
10'
120'
85'
10'
10' 120' 120'
55'
55'
35'
35'
30'
30'
24
FIGURE 17
STANDARD VERTICAL DIRECT VENTING UPFLOW MODEL SHOWN (TYPICAL FOR DOWNFLOW/HORIZONTAL MODELS)
5
DETAIL A
EXHAUST TERMINATION
12
1
2
5
NOTES:
THE COMBUSTION AIR PIPE
1
MUST TERMINATE IN THE SAME PRESSURE ZONE AS THE EXHAUST PIPE.
INCREASE THE 12-IN. MINIMUM
2
TO KEEP TERMINAL OPENING ABOVE ANTICIPATED LEVEL OF SNOW ACCU­MULATIONWHERE APPLICABLE.
WHEN 3-IN. DIAM. PIPE IS USED,
3
REDUCE TO 2-IN. DIAMETER BEFORE PENETRATING ROOF. A MAXIMUM OF 18 IN. OF 2-IN. PIPE MAY BE USED BEFORE PASSINGTHROUGH ROOF.
SUPPORT VERTICAL PIPE EVERY 6
4
FEET. EXHAUSTTERMINATION - TERMINATE
5
THE LAST 12 INCHES WITH 2PVC PIPE ON 90,000 AND 120,000 BTUH MODELS. REDUCE AND TERMINATE THE LAST 12 INCHES WITH 1 PIPE ON 60,000 THROUGH 75,000 BTUH MODELS.
SEE DETAIL A.
1
/2PVC
5. Insulate all vent runs through unconditioned spaces where
below-freezing temperatures are expected with 1" thick medium
density, foil faced fiber glass or
equivalent Rubatex/Armaflex insu­lation. For horizontal runs where
water may collect, wrap the vent pipe with self-regulating, 3 or 5 Watt heat tape. The heat tape must be U.L. listed and installed per the manufacturer’s instruc­tions.
6. All piping between the furnace and the roof or outside wall pe tration is 2" or 3" as specified in
Table 7. Table 7 lists the maxi-
mum allowable length for the
exhaust vent pipe and intake air
pipe for the number of elbows used, based on the type of termi-
nation and furnace size.
7. The minimum vent length is 5 feet.
8. All piping through the roof or out­side wall is 2". When using 3"
pipe, reduce to 2" within 18" of the inside of the roof or outside wall (except 120,000 BTUH model using the RXGY-D04 or D04A Horizontal Vent Kit).
9. Terminate the vent using one of the following termination options.
ne-
3
4
10. Elbows must be a minimum of 15” apart.
11. No screens may be used to cover
combustion air or exhaust.
VERTICAL TERMINATIONS
STANDARD VERTICAL TERMINA­TIONS
Combustion Air Piping um-radius sweep elbows to keep the inlet downward and prevent the entry of rain. The inlet opening of the com-
bustion air termination must be a minimum of 12" above the anticipat­ed level of snow accumulation.
Exhaust Vent Piping
must terminate at least 12 inches above the combustion air termination inlet. The 2" vent pipe used to pene­trate the roof must be reduced to 1 1/2" PVC for the last 12" for the 60,000 and 75,000 BTUH furnace models. No reduction of the 2" pipe is necessary for the 90,000 through 120,000 BTUH
models. The maximum length of the exposed vent pipe above the roof is
30".
(See Figure 16)
: Use two medi-
: The exhaust vent
5
5
ST-A0407-00
25
CONCENTRIC TERMINATIONS
CONCENTRIC VENT KIT NO. RXGY-E03A (SEE FIGURE 18)
This kit is for vertical and horizontal
intake air/vent runs. One 5-in. diameter hole is required for installation. See Figure 18 for the gen­eral layout. Complete installation instructions are included with the kit.
FIGURE 18
CONCENTRIC VENT KIT NO. RXGY-E03A (DIRECT VENT INSTALLATIONS)
ITEM No. DESCRIPTION
1 2.5 24 33 43 5 PVC RAINCAP
" PVC PIPE SCHEDULE 40 -- 37.125" LONG " PVC PIPE SCHEDULE 40 -- 24" LONG " x3" x4" SPECIAL CONCENTRIC FITTING " x 45° STREET ELBOW (FIELD SUPPLIED)
NOTE: The following IPEX brand con­centric terminations (System 636) may be purchased in the field
and used in
place of factory supplied kits: 3” Concentric Kit – Item # 196006
VERTICAL INSTALLATION
MAINTAIN 12 IN. MINIMUM CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL. MAXIMUM OF 24 IN. ABOVE ROOF.
HORIZONTAL INSTALLATION
FIELD-SUPPLIED STRAP
A
NOTE: AIR INTAKE NOT
ORIENTATION SENSITIVE.
1" MAXIMUM
A
A
NOTE: Drain tee is not needed for the inlet pipe.
26
?
INSTALLATION – RXGY-G02A Side Wall Vent
INSTALLATION RXGY-G02 Side Wall Vent
This termination for horizontal venting only. This termination for direct vent application only.
Important: Do no install on the prevailing winter wind side of the structure Note: Multi-venting-No common venting.
FIGURE 19
?
VENT KIT INSTALLATION OPTIONS
?? ? ?
EXHAUST
AIR INTAKE
NOTE: Install the vent and air intake piping into the vent plate openings. Seal all gaps between the pipes and wall. Be Sure To Use Silicone Sealant to seal the vent pipe to the vent cap to permit field disassembly for annual inspection and cleaning. Also seal all pipe penetrations in wall. To prevent possibility of condensate freeze-up or recirculation, do not install vent kits one above the other.
FIGURE 20
TYPICAL INSTALLATION
For 90000 thru 120000 BTUH models­reduce to a length between 12 inches and 30 inches of 2 inch pipe. For 60000 thru 75000 BTUH models­when 3 inch pipe is used: reduce last 30 inches to 18 inches of 2 inch pipe and 12 inches of 1-1/2 inch pipe to maintain velocity. Note: Vent should protrude a maximum of 2-1/4” beyond vent plate. Air intake should protrude a maximum of 1inch beyond vent plate.
Seal all wall cavities
ST-A1075
27
HORIZONTAL TERMINATIONS
STANDARD HORIZONTAL TERMINA-
(SEE FIGURE 21)
TIONS
NOTE: All furnaces with horizontal air intakes (except those using horizontal
concentric vent kit RXGY-E03A) must have a drain tee assembly and trap
installed in the combustion air pipe as close to the furnace as possible. This is to drain any water that may enter the combustion air pipe to prevent it from entering the furnace vestibule area.
These parts are included in horizontal
vent kits RXGY-D02A, RXGY-D03A and RXGY-D04A.
NOTE: The combustion air and exhaust terminations must be at least 12 inches above grade or anticipated snow levels.
Use alternate horizontal terminations
when termination locations are limited and higher snow levels are anticipated.
NOTE: Ensure the location of the com­bustion air inlet with respect to the
exhaust vent terminal complies with
Figure 21, detail C.
Combustion Air Piping
: Use a 2" PVC coupling with a wind deflector vane (pro­vided) installed as follows:
1. Install a 2" coupling to the combus­tion air pipe at the outside wall to prevent the termination from being pushed inward.
2. Cut a 2 1/4" length of 2" PVC pipe and connect this to the coupling.
3. Connect another 2" coupling to the end of the 2 1/4" length of pipe. Terminate this outer coupling 4 inches from the wall.
4. Attach the vane in the final 2" cou­pling in the vertical position with PVC cement.
IMPORTANT: To insure proper fur­nace operation, install the vane in the vertical position as shown in Figure 21, Detail B. Failure to install the vane properly can result in nuisance trip­ping of the pressure switch.
Exhaust Vent Piping: 60,000 and 75,000 BTUH models: Install a 2" to 1 1/2" reducer cou­pling at the outside wall to prevent the termination from being pushed inward. Reduce the 2" vent pipe used to penetrate the wall to 1 1/2" PVC for the last 12" of the run.
Terminate the 1 1/2" PVC exhaust
vent at least 12 inches from the out­side wall.
90,000 through 120,000 BTUH models: Install a 2" coupling at the
outside wall to prevent the termina­tion from being pushed inward. No reduction of the 2" pipe used to penetrate the wall is necessary.
Terminate the 2" PVC exhaust vent
at least 12 inches from the outside wall.
FIGURE 21
STANDARD HORIZONTAL DIRECT VENTING UPFLOW MODEL SHOWN (TYPICAL FOR DOWNFLOW/HORIZONTAL MODELS)
NOTES:
SUPPORT HORIZONTAL
PIPE EVERY FOUR FEET. WHEN 3 IN. PIPE IS USED REDUCE TO
2 IN. BEFORE PENETRATING OUT­SIDE WALL.
18 IN. MAXIMUM. 2 IN. DIAMETER
PIPE MAY BE USED INSIDE THE WALL.
DETAIL“A” - EXHAUSTTERMINATION
TERMINATETHE LAST 12 INCHES WITH 2PVC PIPE ON 90,000 AND 120,000 BTUH MODELS. REDUCE AND TERMINATE THE LAST 12 INCH-
1
/2PVC PIPE ON 60,000
ES WITH 1 THROUGH 75,000 BTUH MODELS.
INCREASE THE 12 IN. MINIMUM
ABOVE GRADE TO KEEP TERMINAL OPENINGS ABOVE ANTICIPATE D LEVEL OF SNOW ACCUMULATION WHERE APPLICABLE.
DETAIL“B”, INSTALLWIND DEFLEC-
TOR VANE IN 2 IN. PVC COUPLING IN VERTICAL POSITION USING PVC SOLVENT.
THE COMBUSTION AIR TERMINATION MUST BE IN THE SAME PRESSURE ZONE AS THE EXHAUSTTERMINA­TION.
EXHAUST/INTAKE RELATIONSHIP
DETAIL C
1
2
3
NO SCREENS OR ELBOWS AT THE END OF THE PIPES
DETAIL C
5
4
DETAIL A
12
EXHAUST TERMINATION
6
COMBUSTION AIR TERMINATION
DETAIL B
ST-A0407-00
28
ALTERNATE HORIZONTAL TERMI­NATIONS (See Figure 22)
NOTE: This method is not permitted
on modulation downflow/horizontal
(RGGE or RGJF) models.
NOTE: The combustion air and
exhaust terminations must be at least
12 inches above grade or anticipated
snow levels. Alternate horizontal ter-
minations allow the combustion air
and exhaust terminations to be raised a maximum of 60 inches above the
wall penetrations to maintain the required clearance.
NOTE: If combustion air vent pipe is extended more than 24 inches, insu­late the vent pipe between the two outside 90° elbows with closed cell
insulation such as rubatex, armaflex
or equivalent.
NOTE: Ensure the location of the combustion air inlet with respect to
the exhaust vent terminal complies
with Figure 22.
Combustion Air Piping
: Use a 2" PVC elbow with a wind deflector vane (pro­vided) installed as follows:
1. Install a 2" elbow to the combustion air pipe at the outside wall to prevent the termination from being pushed inward.
2. Cut an adequate length of 2" PVC pipe as needed to clear the antici­pated snow level and connect this to the elbow.
3. Connect another 2" elbow to the end of the pipe such that the inlet is facing away from the wall. This outer coupling must terminate 4 inches from the wall.
4. Attach
the vane in the final 2" elbow in the vertical position with PVC solvent.
IMPORTANT: To insure proper fur­nace operation, the supplied vane must be installed in the vertical posi­tion as shown in Figure 21, Detail B.
FIGURE 22
ALTERNATE HORIZONTAL DIRECT VENTTERMINATION
SEE DETAIL A
3" MAX. NOTE: 3-1/2" MAX. WHEN D04 KIT IS USED.
EXHAUST VENT 21/2" PVC FOR MODELS WITH 120,000 BTUH INPUT (KIT NO. RXGY-D04A)
2" PVC FOR MODELS WITH INPUTS OF 90,000 THRU 120,000 BTUH. REDUCE TO 11/2" FOR MODELS WITH INPUTS OF 60,000 AND 75,000 BTUH. ELBOWS AND RISERS ARE 2" PVC.
12" FROM WALL
PIPE SUPPORT STRAP
DETAIL C
EXHAUST/INTAKE RELATIONSHIP
NOTE: If combustion air vent pipe is extended more
than 24 inches, insulate the vent pipes between the two outside 90° elbows with closed cell insulation
such as rubatex, armaflex, or equivalent.
Exhaust Vent Piping
:
1. Install a 2" elbow to the exhaust vent
pipe at the outside wall to prevent the termination from being pushed inward.
2. Cut an adequate length of 2" PVC pipe as needed to insure proper loca-
tion of the exhaust vent termination
with respect to the combustion air inlet and connect this to the elbow.
3. Connect another 2" elbow to the end of the pipe such that the inlet is fac­ing away from the wall.
INTAKEVENT 21/2" PVC FOR MODELS WITH 120,000 BTUH INPUT.
2" PVC ELBOWS AND RISER MODELS WITH INPUTS OF 75,000 THRU 120,000 BTUH.
USE KIT NO. RXGY-D02 OR D02A WHEN 2" PIPE IS USED BETWEEN FURNACE AND OUTSIDE WALL. USE KIT NO. RXGY-D03 OR D03A WHEN 3" PIPE IS USED.
DETAIL A
EXHAUST VENT FOR
MODELS WITH INPUT OF
60,000 AND 75,000 BTU
I339
Exhaust Vent Termination:
60,000 and 75,000 BTUH models: Reduce the 2" vent pipe used to
penetrate the wall and extend the
terminations to 1 1/2" PVC for the last 12" of the run. Install a 2" to 1 1/2" reducer bushing in the last 2" elbow. Connect a length of 1 1/2"
PVC pipe such that the exhaust vent
terminates at least 12 inches from the outside wall. See Figure 22, Detail A.
90,000 through 120,000 BTUH mod­els: No reduction of the 2" pipe used
to penetrate the wall is necessary.
Terminate the 2" PVC exhaust vent
at least 12 inches from the outside wall.
120,000 BTUH model with the RXGY-D04A Horizontal Vent Kit:
Venting and terminations install the
same as above except the 2" pipe
and connectors are replaced with 2 1/2" pipe and connectors.
29
LOCATION REQUIREMENTS HORIZONTAL DIRECT VENTS
CAUTION
!
THE COMBUSTION PRODUCTS AND MOISTURE IN THE FLUE GASES WILL CONDENSE AS THEY LEAVETHE TERMINATION. THE CONDENSATE CAN FREEZE ON THE EXTERIOR WALL, UNDER THE EAVES AND ON SURROUNDING OBJECTS. SOME DISCOLORATIONTOTHE EXTERIOR OF THE BUILDING IS TO BE EXPECTED. HOWEVER, IMPROPER LOCATION OR INSTALLATION CAN RESULT IN STRUCTURAL OR EXTERIOR FINISH DAMAGETOTHE BUILD­ING AND MAY RECIRCULATE PRODUCTS OF COMBUSTION INTOTHE COMBUSTION AIR TERMINAL AND FREEZE.
NOTE: In Canada vent terminations
must be in accordance with the current CSA-B149 Gas Installation Code and/or local codes.
The vent must be installed with the fol­lowing minimum clearances. See Figures 23 and 24.
1. Locate the bottom of the vent ter­minal and the air inlet at least 12 inches above grade. Increase the 12-in. minimum to keep the termi­nal openings above the level of snow accumulation, where applica­ble.
2. Do not terminate the vent over pub­lic walkways or over an area where condensate or vapor could create a
nuisance or hazard.
3. Locate the vent terminal at least one foot from any opening through which flue gases could enter a building.
4. Locate the vent terminal at least 3 feet above any forced air inlet
located within 10 feet, except the
combustion air inlet of a direct vent appliance.
5. Allow the vent terminal minimum
horizontal clearance of 4 feet from
electric meters, gas meters, regula­tors and relief equipment.
6. Locate the furnace combustion air inlet a sufficient distance from the vent of any other gas or fuel burn­ing appliance or electric clothes dryer to prevent recirculation of the flue gases into the furnace com-
bustion air inlet. The only exception
to this requirement is the case of multiventing two or more furnaces, which is covered in the section on multiventing in these instructions.
In addition to the minimum clearances listed above, the ven be governed by the following guide­lines.
1. Do not terminate under any kind of patio or deck. If running the vent under a deck, insulate it to insure
no condensate freezes and blocks
the pipe. The insulation must be waterproof.
For vent considerations, the edge of the deck must be considered the outside wall.
2. Do not terminate behind any area that may allow the flue products to become stagnant and recirculate.
3. Do not locate on the side of a building with pre winds. This will help prevent mois-
ture from freezing on walls and
overhangs (under eaves).
4. Do not extend vent directly
through brick or masonry sur­faces. Use a rust-resistant sheet metal or plastic backing plate behind vent. See Figure 15.
5. Do not locate too close to shrubs as condensate may stunt or kill them.
FIGURE 23
MOISTURE ZONES
t location should
vailing winter
6. Minimum vertical clearances of 1 foot are recommended for over-
hangs up to 1 foot horizontal.
The vertical clearance should be increased equ
tional increase in horizontal over­hang to a maximum vertical
clearance of 6 feet.
7. Caulk all cracks, seams and
joints within 6 feet horizontally
as well as 6 feet above and below vent. See Figure 23.
8. Painted surfaces must be sound and in good condition with no cracking, peeling, etc. Painted surfaces will require mainte­nance.
9. Do not expose 3" x 2" reducer/
bushing to outdoor ambient tem­peratures.
ally for each addi-
MULTIVENTING
IF VENTINGTWO OR MORE FUR­NACES NEAR EACH OTHER IS REQUIRED, EACH FURNACE MUST BE INDIVIDUALLY VENTED – NO COMMON VENTING IS PERMIT­TED. See Figures 25 and 26 for posi-
tioning of the terminations. When
2 FT. SQ. SHEET METAL PLATE ON BRICK OR MASONRY SURFACE RECOMMENDED, BUT NOT REQUIRED BY CODE.
30
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