Installation Manual

ManualsBrandsAirQuest ManualsCooling & Air Quality110,000 BTU 80% AFUE Single Stage Multi-Positional Gas Furnace

441 01 3400 02 7/12/2019

INSTALL

TION INSTRUCTIONS

80% Single Stage, ECM Motor

Category I, Non--Condensing 33--1/3 in. Gas Furnace

N80ESN and N80ESL

(

Series

SAFETY CONSIDERATIONS 2.......................

INTRODUCTION

2.................................

CODES AND STANDARDS

4.........................

AFETY 4.......................................

ENERAL INSTALLATION 4...........................

OMBUSTION AND VENTILATION AIR 4.................

UCT SYSTEMS 5.................................

COUSTICAL LINING AND FIBROUS GLASS DUCT 5........

AS PIPING AND GAS PIPE PRESSURE TESTING 5..........

LECTRICAL CONNECTIONS 5........................

ENTING 5......................................

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS

PROCEDURE

5....................................

LOCATION

6......................................

AIR FOR COMBUSTION AND VENTILATION

7.........

UTDOOR COMBUSTION AIR METHOD 8................

OMBINATION OF INDOOR AND OUTDOOR AIR 8...........

INSTALLATION

9..................................

UPFLOW INSTALLATION 10............................

DOWNFLOW INSTALLATION 10.........................

HORIZONTAL INSTALLATION 12.........................

FURNACE SUPPORT 12...............................

AIR DUCTS 12.....................................

GAS PIPING 15.....................................

ELECTRICAL CONNECTIONS 19.........................

115--V WIRING 19...................................

J--BOX RELOCATION 19...............................

24--V WIRING 20....................................

ACCESSORIES 20...................................

VENTING

23.......................................

GENERAL VENTING REQUIREMENTS 23...................

MASONRY CHIMNEY REQUIREMENTS 23..................

APPLIANCE APPLICATION REQUIREMENTS 24...............

ADDITIONAL VENTING REQUIREMENTS 26.................

SIDEWALL VENTING 26...............................

START--UP, ADJUSTMENT, AND SAFETY CHECK

30.....

START--UP PROCEDURES 30............................

ADJUSTMENTS 31..................................

CHECK SAFETY CONTROLS 33..........................

CHECKLIST 33.....................................

SERVICE AND MAINTENANCE PROCEDURES

38.......

INTRODUCTION 38..................................

GENERAL 38......................................

ELECTRICAL CONTROLS AND WIRING 38..................

CARE AND MAINTENANCE 39..........................

CLEANING AND/OR REPLACING AIR FILTER 40..............

BLOWER MOTOR AND WHEEL 40........................

CLEANING HEAT EXCHANGER 41........................

SEQUENCE OF OPERATION 43..........................

WIRING DIAGRAMS 44...............................

TROUBLESHOOTING 45...............................

PARTS REPLACEMENT INFORMATION GUIDE

47.......

NOTE: Read the entire instruction manual before starting the

installation.

Portions of the text and tables are reprinted from current edition

of NFPA 54/ANSI Z223.1E, with permission of National Fire

Protection Association, Quincy, MA 02269 and American Gas

Association, Washington DC 20001. This reprinted material is

not the complete and official position of the NFPA or ANSI on

the referenced subject, which is represented only by the standard

in its entirety.

SAFETY CONSIDERATIONS

FIRE, EXPLOSION, ELECTRICAL SHOCK, AND

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in dangerous

operation, serious injury, death, or property damage.

Improper installation, adjustment, alteration, service,

maintenance, or use could cause carbon monoxide

poisoning, explosion, fire, electrical shock, or other

conditions which may cause personal injury or property

damage. Consult a qualified service agency, local gas

supplier, or your distributor or branch for information or

assistance. The qualified service agency must use only

factory--authorized and listed kits or accessories when

modifying this product.

WARNING

FURNACE RELIABILITY HAZARD

Improper installation or misapplication of furnace may

require excessive servicing or cause premature component

failure.

Application of this furnace should be indoors with special

attention given to vent sizing and material, gas input rate,

air temperature rise, unit leveling, and unit sizing.

CAUTION

Improper installation, adjustment, alteration, service,

maintenance, or use can cause explosion, fire, electrical shock, or

other conditions which may cause death, personal injury, or

Summary of content (48 pages)

PAGE 1
INSTALLATION INSTRUCTIONS 80% Single Stage, ECM Motor Category I, Non--Condensing 33--1/3 in. Gas Furnace N80ESN and N80ESL (Series A) SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CODES AND STANDARDS . . . . . . . . . . . . . . . . . . . . . . . . . SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GENERAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 2
property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory--authorized kits or accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing. Follow all safety codes. Wear safety glasses, protective clothing, and work gloves. Have a fire extinguisher available.
PAGE 3
A190084 NOTES: 1. Two additional 7/8 ---in. (22 mm) diameter holes are located in the top plate. 2. Minimum return ---air openings at furnace, based on metal duct. If flex duct is used, see flex duct manufacturer’s recommendations for equivalent diameters. a. For 800 CFM ---16 ---in. (406 mm) round or 14 1/2 x 12 ---in. (368 x 305 mm) rectangle. b. For 1200 CFM ---20 ---in. (508 mm) round or 14 1/2 x 19 1/2 ---in. (368 x 495 mm) rectangle. c. For 1600 CFM ---22 ---in.
PAGE 4
A10269 Fig. 2 -- Clearances to Combustibles A02055 Fig. 3 -- Return Air Temperature CODES AND STANDARDS Follow all national and local codes and standards in addition to these instructions. The installation must comply with regulations of the serving gas supplier, local building, heating, plumbing, and other codes. In absence of local codes, the installation must comply with the national codes listed below and all authorities 4 having jurisdiction.
PAGE 5
Acoustical Lining and Fibrous Glass Duct S Current edition of SMACNA and NFPA 90B as tested by UL Standard 181 for Class I Rigid Air Ducts Gas Piping and Gas Pipe Pressure Testing S Current edition of NFGC NFPA54/ANSI Z223.1; chapters 5, 6, 7, and 8 and National Plumbing Codes. Electrical Connections S Current edition of National Electrical Code (NEC) NFPA 70. Venting S Current edition of NFGC NFPA 54 / ANSI Z223.1; Chapters 12 and 13.
PAGE 6
! WARNING ! WARNING CARBON MONOXIDE POISONING HAZARD FIRE HAZARD Failure to follow this warning could result in personal injury or death, and unit component damage. Failure to follow this warning could result in personal injury, death, and/or property damage. Corrosive or contaminated air may cause failure of parts containing flue gas, which could leak into the living space. Air for combustion must not be contaminated by halogen compounds, which include fluoride, chloride, bromide, and iodide.
PAGE 7
Table 2 – Minimum Free Area Required for Each Combustion Air Opening or Duct to Outdoors TWO HORIZONTAL DUCTS (1 SQ. IN./2,000 BTUH) (1,100 SQ. MM/KW) FURNACE INPUT (BTUH) Free Area of Opening and Duct (sq. in. / sq. mm) 22 (14193) 33 (21290) 44 (28387) 55 (35484) 66 (42581) 77 (49677) 44,000 66,000 88,000 110,000 132,000 154,000 SINGLE DUCT OR OPENING (1 SQ. IN./3,000 BTUH) (734 SQ. MM/KW) Round Duct Diameter (in.
PAGE 8
U.S. installations: Section 9.3 of the current edition of NFGC NFPA54/ANSI Z223.1, Air for Combustion and Ventilation, and applicable provisions of the local building codes. ! WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury or death. The operation of exhaust fans, kitchen ventilation fans, clothes dryers, attic exhaust fans or fireplaces could create a NEGATIVE PRESSURE CONDITION at the furnace.
PAGE 9
2. The air infiltration rate is not known to be less than 0.40 air changes per hour (ACH). The Known Air Infiltration Rate Method shall be used, if the infiltration rate is known to be: 1. Less than 0.40 ACH and 2. Equal to or greater than 0.10 ACH Infiltration rates greater than 0.60 ACH shall not be used. The minimum required volume of the space varies with the number of ACH and shall be determined per Table 3 or Equations 1 and 2.
PAGE 10
38 mm) (max) corrosion--resistant machine bolts, washers and nuts. NOTE: Bottom closure must be used when leveling legs are used. It may be necessary to remove and reinstall bottom closure panel to install leveling legs. To remove bottom closure panel, see Item 1. in Bottom Return Air Inlet section. To install leveling legs: 1. Position furnace on its back. Locate and drill a hole in each bottom corner of furnace. (See Fig. 10.) 2. For each leg, install nut on bolt and then install bolt and nut in hole.
PAGE 11
FURNACE APPROVED COIL ASSEMBLY OR COIL BOX COMBUSTIBLE FLOORING SHEET METAL PLENUM FLOOR OPENING A08556 Fig. 13 -- Furnace, Plenum, and Coil Assembly or Coil Box Installed on a Combustible Floor Table 4 – Opening Dimensions -- In.
PAGE 12
HORIZONTAL INSTALLATION ! Not all horizontal furnaces are approved for side return air connections. (See Fig. 21.) FILTER ARRANGEMENT WARNING ! FIRE, EXPLOSION, AND CARBON MONOXIDE POISONING HAZARD WARNING Failure to follow this warning could result in personal injury, death, and/or property damage. CARBON MONOXIDE AND POISONING HAZARD Do not install the furnace on its back or hang furnace with control compartment facing downward. Safety control operation will be adversely affected.
PAGE 13
Upflow and Horizontal Furnaces Connect supply--air duct to flanges on furnace supply--air outlet. Bend flange upward to 90_ with wide duct pliers. (See Fig. 14.) The supply--air duct must be connected to ONLY the furnace supply--outlet--air duct flanges or air conditioning coil casing (when used). DO NOT cut main furnace casing side to attach supply air duct, humidifier, or other accessories. All accessories MUST be connected to duct external to furnace main casing.
PAGE 14
METHOD 2 USE (4) #8 x 3/4 (19 mm) SHEET METAL SCREWS FOR EACH STRAP. THE STRAPS SHOULD BE VERTICAL AGAINST THE FURNACE SIDES AND NOT PULL AWAY FROM THE FURNACE SIDES. METHOD 1 FOLD ALL STRAPS UNDER FURNACE AND SECURE WTH (4) #8 x 3/4 (19 mm) SHEET METAL SCREWS (2 SCREWS IN SIDE AND 2 SCREWS IN BOTTOM). A10131 Fig.
PAGE 15
Return Air Connections ! ! WARNING FIRE OR EXPLOSION HAZARD FIRE HAZARD Failure to follow this warning could cause personal injury, death and/or property damage. Never connect return--air ducts to the back of the furnace. Follow instructions below Downflow Furnaces The return--air duct must be connected to return--air opening (bottom inlet) as shown in Fig. 20. DO NOT cut into casing sides (left or right). Side opening is permitted for only upflow and most horizontal furnaces. (See Fig. 20.
PAGE 16
Table 5 – Air Delivery -- CFM (With Filter)* Furnace 0451412 0451712 0701412 0701712 0702116 0901714 0902116 0902120 0902420 1102120 1102420 1352420 1552420 Wire Lead Color Gray Yellow Orange Blue Red Gray Yellow Orange Blue Red Gray Blue Yellow Orange Red Gray Yellow Blue Orange Red Gray Yellow Blue Orange Red Gray Yellow Blue Orange Red Gray Yellow Blue Orange Red Gray Yellow Blue Orange Red Gray Yellow Blue Orange Red Gray Blue Yellow Orange Red Gray Blue Yellow Orange Red Gray Blue Yellow
PAGE 17
Table 6 – Maximum Capacity of Pipe* NOMINAL IRON INTERNAL LENGTH OF PIPE --- FT. (M) PIPE DIAMETER SIZE IN. (mm) In. (mm) 10 20 30 40 50 1/2 (13) 0.622 (16) 175 (53) 120 (37) 97 (30) 82 (25) 73 (22) 3/4 (19) 0.824 (21) 360 (110) 250 (76) 200 (61) 170 (52) 151 (46) 1 (25) 1.049 (27) 680 (207) 465 (142) 375 (114) 320 (98) 285 (87) 1 ---1/4 (32) 1.380 (35) 1400 (427) 950 (290) 770 (235) 660 (201) 580 (177) 1 ---1/2 (38) 1.610 (41) 2100 (640) 1460 (445) 1180 (360) 990 (301) 900 (274) * Cubic ft.
PAGE 18
A02163 Fig. 20 -- Downflow Return Air Configurations and Restrictions A02162 Fig. 21 -- Horizontal Return Air Configurations and Restrictions 2” (51mm) Street Elbow A08551 Fig. 22 -- Burner and Manifold 18 Specifications are subject to change without notice.
PAGE 19
Table 7 – Electrical Data Operating Voltage* Range Unit Size VoltsHertzPhase Maximum Minimum 0451412 0451712 0701412 0701712 0702116 0901714 0902116 0902120 0902420 1102120 1102420 1352420 1552420 115--- 60--- 1 115--- 60--- 1 115--- 60--- 1 115--- 60--- 1 115--- 60--- 1 115--- 60--- 1 115--- 60--- 1 115--- 60--- 1 115--- 60--- 1 115--- 60--- 1 115--- 60--- 1 115--- 60--- 1 115--- 60--- 1 127 127 127 127 127 127 127 127 127 127 127 127 127 104 104 104 104 104 104 104 104 104 104 104 104 104 Unit Am
PAGE 20
NOTE: The J--Box cover need not be removed from the J--Box in order to move the J--Box. Do NOT remove green ground screw inside J--Box. 2. Cut wire tie on loop in furnace wires attached to J--box. 3. Move J--Box to desired location. 4. Fasten J--Box to casing with two screws removed in Step 1. 5. Route J--Box wires within furnace away from sharp edges, rotating parts and hot surfaces. ELECTRICAL CONNECTION TO J--BOX Electrical Box on Furnace Casing Side ! 4.
PAGE 21
A190032 Fig. 24 -- Furnace Control FIELD 24-V WIRING FIELD 115-, 208/230-, 460-V WIRING FACTORY 24-V WIRING FACTORY 115-V WIRING NOTE 2 W FIVE WIRE THREE-WIRE HEATING-ONLY C R G Y THERMOSTAT TERMINALS FIELD-SUPPLIED DISCONNECT 208/230- OR 460-V THREE PHASE BLOWER DOOR SWITCH BLK BLK WHT WHT GND 115-V FIELDSUPPLIED DISCONNECT W GND AUXILIARY J-BOX C O N T R O L R 208/230-V SINGLE PHASE G COM NOTE 1 Y 24-V TERMINAL BLOCK FURNACE GND CONDENSING UNIT TWO WIRE NOTES: 1.
PAGE 22
A190085 Fig. 26 -- Thermostat Wiring Diagrams NOTES FOR THERMOSTAT WIRING DIAGRAMS 1. 2. 3. 4. 5. 6. 22 Refer to outdoor equipment Installation Instructions for additional information and setup procedure. Outdoor Air Temperature Sensor must be attached in all dual fuel application. Refer to ICP thermostat Installation Instructions for additional information and setup procedure. HUM 24VAC terminal is 24 VAC and is energized when the low pressure switch closes during a call for heat.
PAGE 23
VENTING The furnace shall be connected to a listed factory built chimney or vent, or a clay--tile lined masonry or concrete chimney. Venting into an unlined masonry chimney or concrete chimney is prohibited. When an existing Category I furnace is removed or replaced, the original venting system may no longer be sized to properly vent the attached appliances.
PAGE 24
This furnace is permitted to be vented into a clay tile--lined masonry chimney that is exposed to the outdoors below the roof line, provided: 1. Vent connector is Type--B double--wall, and 2. This furnace is common vented with at least 1 draft hood equipped appliance, and 3. The combined appliance input rating is less than the maximum capacity given in Table 8, and 4.
PAGE 25
CHIMNEY INSPECTION CHART For additional requirements refer to the National Fuel Gas Code NFPA 54/ANSI Z223.1 and ANSI/NFPA 211 Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances Crown condition: Missing mortar or brick? Rebuild crown. Yes No Is chimney property lined with clay tile liner? No Yes Is liner and top seal in good condition? No Repair liner or top seal or reline chimney as necessary.
PAGE 26
To prevent condensation in the furnace and vent system, the following precautions must be observed: 1. The return--air temperature must be at least 60_F (16_C)db except for brief periods of time during warm--up from setback at no lower than 55_F (13_C) db or during initial start--up from a standby condition. 2. Adjust the gas input rate per the installation instructions. Low gas input rate causes low vent gas temperatures, causing condensation and corrosion in the furnace and/or venting system.
PAGE 27
Caution!! For the following applications, use the minimum vertical vent heights as specified below. For all other applications, follow exclusively the National Fuel Gas Code. FURNACE ORIENTATION Downflow Horizontal Left Horizontal Left Horizontal Left Downflow Downflow VENT ORIENTATION FURNACE INPUT (BTUH/HR) MIN. VENT DIAMETER IN. (mm)* MIN. VERTICAL VENT HEIGHT FT. (M)** Vent elbow left, then up Fig. 32 Vent elbow right, then up Fig. 35 Vent Elbow up Fig. 37 Vent elbow right Fig.
PAGE 28
SEE NOTES:1,2,3,4,5,7,8,9 on the page following these figures SEE NOTES: 1,2,4,5,6,7,8,9 on the page following these figures A03210 Fig. 30 -- Downflow Application--Vent Elbow Up then Left A03207 Fig. 32 -- Downflow Application--Vent Elbow Left then Up SEE NOTES: 1,2,4,5,7,8,9 on the page following these figures SEE NOTES:1,2,3,4,5,7,8,9 on the page following these figures. A03211 Fig. 31 -- Downflow Application--Vent Elbow Up 28 A03212 Fig.
PAGE 29
SEE NOTES: 1,2,4,7,8,9 on the page following these figures A03213 SEE NOTES: 1,2,4,5,7,8,9 on the page following these figures Fig. 34 -- Horizontal Left Application--Vent Elbow Left A03219 Fig. 38 -- Horizontal Right Application--Vent Elbow Left then Up SEE NOTES: 1,2,4,5,7,8,9 on the page following these figures SEE NOTES: 1,2,4,5,7,8,9 on the page following these figures A03216 A03214 Fig. 39 -- Horizontal Left Application--Vent Elbow Right Fig.
PAGE 30
VENTING NOTES FOR FIGURES 28 - 40 1. For common vent, vent connector sizing and vent material: United States----use the NFGC. 2. Immediately increase to 5--inch (127 mm) or 6--inch (152 mm) vent connector outside furnace casing when 5--inch (127 mm) vent connector is required, refer to Note 1 above. 3. Side outlet vent for upflow and downflow installations must use Type B vent immediately after exiting the furnace, except when factory--authorized, Downflow Vent Guard Kit, is used in the downflow position.
PAGE 31
g. Reconnect R lead to furnace control board, release blower door switch and re--install blower door. 4. Operate furnace per instruction on door. 5. Verify furnace shut down by lowering thermostat setting below room temperature. 6. Verify furnace restarts by raising thermostat setting above room temperature. Adjustments ! WARNING FIRE HAZARD Failure to follow this warning could result in injury, death and/or property damage. DO NOT bottom out gas valve regulator adjusting screw.
PAGE 32
e. Multiply gas rate (cu ft./hr) by heating value (Btuh/cu ft.) to obtain input. If clocked rate does not match required input from Step 1, increase manifold pressure to increase input or decrease manifold pressure to decrease input. Repeat steps b through e until correct input is achieved. Reinstall regulator seal cap on gas valve. 5. Set temperature rise. The furnace must operate within the temperature rise ranges specified on the furnace rating plate.
PAGE 33
6. Set thermostat heat anticipator. a. Mechanical thermostat -- Set thermostat heat anticipator to match the amp. draw of the electrical components in the R--W circuit. Accurate amp. draw readings can be obtained at the wires normally connected to thermostat subbase terminals, R and W. The thermostat anticipator should NOT be in the circuit while measuring current. (1.) Remove thermostat from subbase or from wall. (2.) Connect an amp. meter as shown in Fig.
PAGE 34
Table 11 – Gas Rate (Cu Ft./Hr.) SECONDS FOR 1 REVOLUTION 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 34 1 Cu Ft. 360 327 300 277 257 240 225 212 200 189 180 171 164 157 150 144 138 133 129 124 120 116 113 109 106 103 100 97 95 92 90 88 86 84 82 80 78 76 75 73 SIZE OF TEST DIAL 2 Cu Ft. 5 Cu Ft.
PAGE 35
Table 12 – Orifice Size* and Manifold Pressure (In. W.C.) for Gas Input Rate A10180 441 01 3400 02 Specifications are subject to change without notice.
PAGE 36
Table 12 -- Orifice Size* and Manifold Pressure (In. W.C.) for Gas Input Rate (CONT) A10180A 36 Specifications are subject to change without notice.
PAGE 37
Table 13 – Orifice Size* And Manifold Pressure (In. W.C.) For Gas Input Rate A10181 441 01 3400 02 Specifications are subject to change without notice.
PAGE 38
Table 13-- Orifice Size* And Manifold Pressure (In. W.C.) For Gas Input Rate (CONT) A10181A SERVICE AND MAINTENANCE PROCEDURES Untrained personnel can perform basic maintenance functions such as cleaning and replacing air filters. All other operations must be performed by trained service personnel. A qualified service person should inspect the furnace once a year. ! CAUTION ! ELECTRICAL OPERATION HAZARD Failure to follow this caution may result in improper furnace operation or failure of furnace.
PAGE 39
The electrical ground and polarity for 115--v wiring must be properly maintained. Refer to Fig. 25 for field wiring information and to Fig. 48 for furnace wiring information. NOTE: If the polarity is not correct, the STATUS LED on the control will flash rapidly and prevent the furnace from heating. The control system also requires an earth ground for proper operation of the control and flame--sensing electrode. The 24--v circuit contains an automotive--type, 3--amp. fuse located on the control. (See Fig.
PAGE 40
The minimum maintenance on this furnace is as follows: 1. Check and clean/replace air filter each month or more frequently if required. Replace if torn. 2. Check blower motor and wheel for cleanliness each heating and cooling season. Clean as necessary. 3. Check electrical connections for tightness and controls for proper operation each heating season. Service as necessary. 4. Inspect burner compartment before each heating season for rust, corrosion, soot or excessive dust.
PAGE 41
15. Refer to furnace wiring diagram, and connect thermostat leads if previously disconnected. 16. To check blower for proper rotation: a. Turn on electrical supply. ! WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury, or death. Blower access door switch opens 115--v power to furnace control. No component operation can occur unless switch is closed.
PAGE 42
NOTE: The materials needed in item 9 can usually be purchased at local hardware stores. (1.) Attach variable--speed, reversible drill to the end of spring cable (end opposite brush). (2.) Insert brush end of cable into the outlet opening of cell and slowly rotate with drill. DO NOT force cable. Gradually insert cable into upper pass of cell. (See Fig. 47 .) (3.) Work cable in and out of cell 3 or 4 times to obtain sufficient cleaning. DO NOT pull cable with great force.
PAGE 43
lay contacts GVR close to energize the gas valve GV, the gas valve opens, The gas valve GV permits gas flow to the burners where it is ignited by the HSI. Five seconds after the GVR closes, a 2--second flame proving period begins. The HSI igniter will remain energized until the flame is sensed or until the 2--second flame proving period begins. d.
PAGE 44
A190267 Fig. 48 -- Wiring Diagram 44 Specifications are subject to change without notice.
PAGE 45
A190281 441 01 3400 02 Specifications are subject to change without notice.
PAGE 46
NOTE: NUMBER IN UPPER LEFT HAND CORNER REPRESENTS FLASH CODE A190282 Fig. 49 -- Troubleshooting Guide 46 Specifications are subject to change without notice.
PAGE 47
PARTS REPLACEMENT INFORMATION GUIDE GAS CONTROL GROUP Manifold Burner assembly Orifice Flame sensor Hot surface igniter Gas valve Manual reset limit switches Burner support assembly HEAT EXCHANGER GROUP Heat exchanger cell Cell panel Lox NOx baffle (California models only) INDUCER GROUP Housing assembly Pressure switch Inducer motor Inducer wheel Vent elbow assembly Draft safeguard switch CASING GROUP Outer door Blower door Top filler plate Bottom filler plate Bottom enclosure ELECTRICAL GROUP Control brac
PAGE 48
Copyright 2019 International Comfort Products Lewisburg, TN 37091 USA 48 Specifications are subject to change without notice.