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PARTS REPLACEMENT INFORMATION GUIDE

Casing Group

Blower door
Bottom plate
Control door
Door knob assembly
Top filler plate

Electrical Group

3--Amp fuse
Circuit board
Control box
Door switch
Junction box
Limit switch(es)
Transformer

Blower Group

Blower housing
Blower motor
Blower wheel
Cut--off plate
Power choke (where used)

Filter Group

Filter(s)
Media Cabinet (when used)

Gas Control Group

Burner
Flame sensor
Gas valve
Hot surface igniter
Manifold
Orifice

Heat Exchanger Group

Containment plate
Coupling box
Heat exchanger assembly
Primary HX cell panel
Secondary HX assembly
Tubing gaskets

Inducer Group

Collector box
Condensate trap

Condensate trap elbow
Gaskets
Inducer
Inducer assembly
Inducer motor capacitor (when used)
Inducer motor module (when used)
Pressure switch(es)

TO OBTAIN INFORMATION ON PARTS:

Consult your installing dealer or classified section of your local telephone directory under

“Heating Equipment” or “Air Conditioning Contractors and Systems” headings for dealer listing by brand name or contact:

BRYANT HEATING & COOLING SYSTEMS

Consumer Relations Department

P.O. Box 4952

Syracuse, New York 13221--4952

1--800--428--4326

Have available the model number, series number, and serial number located on the unit rating plate to ensure correct replacement part.

Model Nomenclature

MODEL

COOLING

CAPACITY

HEATING

CAPACITY

MOTOR

WIDTH

VOLTAGE

FEATURES/

MINOR

SERIES

915SB

30

026

E

14

A

A

FIRE, EXPLOSION, ELECTRICAL SHOCK AND CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in dangerous operation, personal injury, death or property damage.
Improper installation, adjustment, alteration, service, or maintenance can cause personal injury, property damage, or death. Consult a

qualified installer, service agency, or your local gas supplier for information or assistance. The qualified installer or service agency

must use only factory--authorized replacement parts, kits, or accessories when modifying this product.

!

WARNING

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

E

2019 Bryant Heating & Cooling Systems

D

7310 W. Morris St.

D

Indianapolis, IN 46231

Edition Date: 07/19

Replaces: II915SB--- 01

Catalog No. II915SB---02

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Содержание 915SB

Страница 1: ...Opening Dimensions 25 Air Delivery CFM 26 Maximum Capacity of Pipe 28 Electrical Data 33 Vent Termination Kit for Direct Vent 2 Pipe System 36 Hangar Spacing 42 Combustion Air Vent Pipe Fitting Cement...

Страница 2: ...exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment The sign shall read in print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR...

Страница 3: ...king on heating equipment observe precautions in literature on tags and on labels attached to or shipped with furnace and other safety precautions that may apply These instructions cover minimum requi...

Страница 4: ...n be converted in the field for use with propane gas when a factory supplied conversion kit is used Refer to the furnace rating plate for conversion kit information These furnaces are not approved for...

Страница 5: ...ensed plumber or gas fitter S When flexible connectors are used the maximum length shall not exceed 36 in 914 mm S When lever type gas shutoffs are used they shall be T handle type S The use of copper...

Страница 6: ...8 3 4 222 126 5 57 4 36060E14 14 3 16 361 12 1 2 319 12 9 16 322 7 1 8 181 129 58 5 42060E17 17 1 2 445 15 7 8 403 16 406 8 3 4 222 138 5 62 8 48080E17 17 1 2 445 15 7 8 403 16 406 8 3 4 222 146 5 66...

Страница 7: ...parts bag contents This furnace must S be installed so the electrical components are protected from water S not be installed directly on any combustible material other than wood flooring refer to SAF...

Страница 8: ...must be installed in accordance with the current edition of NFPA 54 ANSI Z223 1 or CAN CSA B149 2 See Fig 4 WARNING 18 IN 457 2 mm MINIMUM TO BURNERS A93044 Fig 4 Installation in a Garage FIRE HAZARD...

Страница 9: ...e Air contaminants are found in aerosol sprays detergents bleaches cleaning solvents salts air fresheners and other household products CAUTION CARBON MONOXIDE POISONING HAZARD Failure to follow this w...

Страница 10: ...2 kW of the total input rating of all gas appliances in the space but not less than 100 in 2 0 06 m2 One opening shall commence within 12 in 300 mm of the ceiling and the second opening shall commence...

Страница 11: ...ce Volumes for 100 Combustion Ventilation and Dilution Air from Outdoors AIR CHANGES PER HOUR ACH OTHER THAN FAN ASSISTED TOTAL 1 000 S BTUH GAS INPUT RATE FAN ASSISTED TOTAL 1 000 S BTUH GAS INPUT RA...

Страница 12: ...required for all direct vent horizontal installations only The kit contains a rubber casing grommet designed to seal between the furnace casing and the condensate trap See Fig 8 Remove knockout Insta...

Страница 13: ...operation or damage to equipment If furnace environment has the potential of freezing the drain trap and drain line must be protected The use of accessory drain trap heaters electric heat tape and or...

Страница 14: ...d two spring clamps from the loose parts bag 3 Slide a spring clamp 1 inch 25 mm down the plain end the end without the formed grommet of the drain elbow 4 From inside the casing insert the formed gro...

Страница 15: ...zontal drain trap grommet is ONLY REQUIRED FOR DIRECT VENT APPLICATIONS It is NOT required for applications using single pipe or ventilated combustion air venting NOTICE TIP FROM CONTRACTORS When inst...

Страница 16: ...ipe into the outlet stub on the drain tube 10 Connect additional condensate piping to a code approved drain or to a condensate pump approved for use with acidic furnace condensate and compatible with...

Страница 17: ...to furnace drain TEE 1 2 CPVC to 3 4 PVC adapter from loose parts bag DIRECTION OF AIRFLOW A170135 Fig 18 Example of Field Drain Attachment INSTALLATION Cabinet air leakage is less than 2 at 1 0 in W...

Страница 18: ...uration See Fig 22 23 and 24 Leveling Legs If Desired In upflow position with side return inlet s leveling legs may be used See Fig 20 Install field supplied 5 16 x 1 1 2 in 8 x 38 mm max corrosion re...

Страница 19: ...shown in Fig 21 for proper condensate drainage FIRE EXPLOSION AND CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury death or property damage Do not insta...

Страница 20: ...sampling the air stream The cover attachment shall prevent leaks Connect supply air duct to flanges on furnace supply air outlet Bend flange upward to 90_ with wide duct pliers See Fig 19 The supply...

Страница 21: ...finished ceiling 2 IN 51 mm COMBUSTION AIR PIPE SEE VENTING SECTION Install 12 x 22 204 x 559 mm sheet metal in front of and above the burner compartment area The sheet metal MUST extend above the fur...

Страница 22: ...applications the optional media cabinet or field supplied accessory air cleaner can be installed on the side of the furnace or side and bottom when a bottom plenum is used See Fig 29 and 22 For downfl...

Страница 23: ...00 944 0 09 23 0 22 56 0 21 54 2200 1038 0 09 24 0 26 66 0 25 62 25 x 25 Filter 635 x 635 mm Factory Accessory Washable Factory Accessory Media Representative After Market Filter Media Fiberglass Plea...

Страница 24: ...635 x 19 or 1 24 x 25 x 4 5 16 610 x 635 x 110 Washable or Media Filters with a side return air may have a different filter size Measure the filter to obtain the correct size Recommended to maintain a...

Страница 25: ...ubbase not required 15 7 8 403 19 483 16 1 2 419 19 5 8 498 Downflow applications on combustible flooring subbase required 15 1 8 384 19 483 16 3 4 425 20 5 8 600 Downflow Applications on Combustible...

Страница 26: ...t Cooling Do not use for heating 1665 1625 1575 1530 1480 1435 1385 1340 1285 1240 Orange Alt Cooling or alt Heating 1475 1420 1370 1320 1270 1220 1170 1125 1070 1025 Blue Heating or alt Cooling 1345...

Страница 27: ...brous ductwork may be used if constructed and installed in accordance with the latest edition of SMACNA construction standard on fibrous glass ducts Both acoustical lining and fibrous ductwork shall c...

Страница 28: ...ssure DOES NOT exceed maximum 0 5 psig 14 in w c stated on gas control valve See Fig 60 If pressure exceeds 0 5 psig 14 in w c gas supply pipe must be disconnected from furnace and capped before and d...

Страница 29: ...NOTE Proper polarity must be maintained for 115 v wiring If polarity is incorrect control LED status indicator light will flash rapidly and furnace will NOT operate Verify that the voltage frequency...

Страница 30: ...he following 1 Align the J Box bracket with the knock out inside the furnace casing 2 Install the threaded end of a strain relief bushing through the J Box bracket and the furnace casing Strain relief...

Страница 31: ...screws supplied in loose parts bag Do not pinch wires between cover and bracket See Fig 34 BX Cable Installation in Furnace J Box 1 Install J Box mounting bracket to inside of furnace casing See Fig...

Страница 32: ...output energized when the gas valve relay is operating during a call for heat Connect an accessory 24 VAC 0 5 amp maximum humidifier if used to the in male quick connect HUM terminal and COM 24V scre...

Страница 33: ...G DIAGRAMS 1 Heat pump MUST have a high pressure switch for HYBRID HEATr dual fuel applications 2 Refer to outdoor equipment Installation Instructions for additional information and setup procedure 3...

Страница 34: ...ng used with this system must be UL listed material Acceptability under Canadian standard CAN CSA B149 is dependent upon full compliance with all installation instructions Under this standard it is re...

Страница 35: ...Fig 55 for single pipe or ventilated combustion air option A furnace shall not be connected to a chimney flue serving a separate appliance designed to burn solid fuel Other gas appliances with their o...

Страница 36: ...ONS PROVIDED WITH THE EXTERNAL VENT TRAP KIT FOR LAYING OUT THE VENTING SYSTEM AND THE DRAIN SYSTEM The instructions included with this furnace DO NOT APPLY to vent systems that are located below the...

Страница 37: ...heating season If ventilation fans are present in these areas the combustion air pipe must terminate outdoors as a Direct Vent System Non Direct Vent 1 Pipe System The vent pipe for a Non Direct Vent...

Страница 38: ...eet 5 M must be taken into account NOTICE EXAMPLE FOR UPFLOW INSTALLATIONS MAY BE APPLIED TO OTHER CONFIGURATIONS A12220 Fig 39 Sample Inlet Air Pipe Connection for Polypropylene Venting Systems FURNA...

Страница 39: ...ystems Use 3 Vent Tables for 80 mm o d vent systems Use 4 Vent Tables for 100 mm o d vent systems NOTICE The measured length of pipe used in a single or 2 pipe termination is included in the total ven...

Страница 40: ...able 16 Configure the Furnace CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury or death To route the vent pipe and combustion air pipe through the furnac...

Страница 41: ...polypropylene venting systems Follow the polypropylene venting system manufacturer s instructions for installing polypropylene venting systems WARNING NOTE The rubber coupling that attaches to the ven...

Страница 42: ...coup ling if needed 12 Seal around the combustion air pipe with silicone or foil tape SILICONE SEALERS MAY NOT BE APPRO PRIATE FOR POLYPROPYLENE VENT SYSTEMS SEE POLYPROPYLENE VENT SYSTEM MANU FACTUR...

Страница 43: ...ructions of the vent terminal manufacturer These instructions are provided as a reference only Cut one 4 in 102 mm diameter hole for 2 in 50 mm ND kit or one 5 in 127 mm diameter hole for 3 in 80 mm N...

Страница 44: ...he outlet restrictor in place 4 Re install the vent elbow 5 Torque vent elbow clamp 15 lb in Table 14 Approved Combustion Air and Vent Pipe Fitting and Cement Materials U S A Installations MATERIALS U...

Страница 45: ...m 0 Insulation 3 8 Insulation 1 2 Insulation 38 51 38 51 38 51 7 6 1 6 1 15 2 13 7 18 3 15 2 18 1 5 1 5 7 6 6 1 9 1 7 6 29 4 6 3 0 6 1 4 6 40 3 0 1 5 4 6 3 0 Unit Size 40 000 BTUH 60 000 BTUH Winter D...

Страница 46: ...2 8 30 4 32 0 13 7 30 4 35 0 11 8 35 0 3 0 4 5 NOTES 1 40K Inducer Outlet Restrictor disk P N 337683 401 1 25 in 32 mm Dia shipped in the loose parts bag or available through Replacement Components re...

Страница 47: ...h MEVL 95 ft 29 M For 2 pipe from Table 16 Is TEVL less than MEVL YES Therefore 2 pipe MAY be used Example 2 A direct vent 60 000 BTUH furnace installed at 2100 ft 640M Venting system includes FOR EAC...

Страница 48: ...soffitt located above the vent termination within a horizontal distance of 2 ft 61 cm from the centerline of the vent termination 6 ft 2 M Clearance to a ventilation exhaust including HRV ERV on eithe...

Страница 49: ...for combustion air connection UPFLOW VERTICAL VENT A11310A Fig 46 Upflow Configurations Appearance may vary See Notes for Venting Options 1 2 3 4 5 6 7 5 Rotate vent elbow to required position DOWNFLO...

Страница 50: ...LEFT RIGHT VENT CONFIGURATION A11329A Fig 48 Horizontal Left Appearance may vary See Notes for Venting Options ALTERNATE COMBUSTION AIR CONNECTIONS HORIZONTAL RIGHT VERTICAL VENT CONFIGURATION A11337...

Страница 51: ...ew VENT PIPE FLUSH SHOWING COUPLING VENT PIPE FLUSH WITH ADAPTER VENT PIPE ADAPTER WITH GASKET INSTALLED ON FURNACE VENT PIPE IS CUT FLUSH WITH TOP OF ADAPTER PRIME AND CEMENT VENT PIPE TO ADAPTER ALL...

Страница 52: ...a minimum of two sides beneath the floor See Note 4 Manufacturer s Recommendation See Notes 3 8 M Clearance to each side of the centerline extended above or below vent terminal of the furnace to a dr...

Страница 53: ...lly open on a minimum of two sides beneath the floor See Note 4 Manufacturer s Recommendation See Notes 3 8 M Clearance to each side of the centerline extended above or below vent terminal of the furn...

Страница 54: ...ver is greater Side wall termination with 2 elbows preferred 12 in min 305 mm from overhang or roof Maintain 12 in 305mm minimum clearance above highest anticipated snow level or grade whichever is gr...

Страница 55: ...55 A13078 Fig 56 Alberta and Saskatchewan Vent Termination A10497 Fig 57 Vent Terminations for Ventilated Combustion Air...

Страница 56: ...HUM 24vac terminal is only energized when the gas valve is energized in heating Prime Condensate Trap with Water CARBON MONOXIDE POISONING HAZARD Failure to follow these warnings could result in perso...

Страница 57: ...plications NOTICE In the USA the input rating for altitudes above 2000 ft 609 6M must be reduced by 2 percent for each 1000 ft 304 8M above sea level Refer to Table 18 or 19 The natural gas manifold p...

Страница 58: ...915 825 43 3 6 43 3 7 43 3 8 42 3 2 850 44 3 8 43 3 5 43 3 6 43 3 7 875 44 3 6 44 3 7 43 3 4 43 3 5 4000 900 44 3 4 44 3 5 44 3 7 44 3 8 1219 925 44 3 2 44 3 4 44 3 5 44 3 6 950 44 3 1 44 3 2 44 3 3 4...

Страница 59: ...5 43 3 7 43 3 8 42 3 2 725 44 3 8 43 3 4 43 3 5 43 3 6 750 44 3 5 44 3 7 44 3 8 43 3 4 8000 775 44 3 3 44 3 4 44 3 5 44 3 7 2438 800 44 3 1 44 3 2 44 3 3 44 3 4 825 44 2 9 44 3 0 44 3 1 44 3 2 625 42...

Страница 60: ...5 44 1 5 44 1 6 4000 925 44 1 4 44 1 4 44 1 5 44 1 5 1219 950 44 1 3 44 1 3 44 1 4 44 1 4 750 43 1 7 43 1 7 43 1 8 43 1 8 775 44 1 8 43 1 6 43 1 7 43 1 7 4001 800 44 1 7 44 1 7 44 1 8 43 1 6 1220 825...

Страница 61: ...upply manual shutoff valve to ON position 6 Turn furnace gas valve switch to ON position 7 Jumper R and W thermostat connections at the furnace control board 8 When main burners ignite confirm inlet g...

Страница 62: ...ection for setting the manifold pressure USE TABLE 19 WHEN ADJUSTING 26 000 BTUH MODEL MANIFOLD PRESSURE CAUTION i When correct input is obtained replace cap that conceals gas valve regulator adjustme...

Страница 63: ...nd relocate it them to HEAT heating blower tap terminal s Reconnect original lead on SPARE terminal Adjust Blower Off Delay Heat Mode If desired the main blower off time delay period may be lengthened...

Страница 64: ...igniter should NOT glow and control diagnostic light flashes a status code 31 If hot surface igniter glows when inducer motor is disconnected shut down furnaceimmedi ately e Determine reason low press...

Страница 65: ...65 A190099 Fig 63 Service Label Information...

Страница 66: ...low this caution may result in environmental pollution Remove and recycle all components or materials i e oil refrigerant control board etc before unit final disposal CAUTION ELECTRICAL SHOCK FIRE OR...

Страница 67: ...furnace control component test allows all components to run for a short time except the gas valve and humidifier terminal HUM are not energized The EAC 1 terminal is energized when the blower is ener...

Страница 68: ...heating sea son for water leakage sagging pipes or broken fittings Have vent pipes vent system serviced by a qualified service agency 6 Inspect any accessories attached to the furnace such as a hu mid...

Страница 69: ...ser To remove wheel NOTE The DIBC composite wheel used in some models should be cleaned with mild soapy water only Allow wheel to dry prior to reassembly a Mark blower wheel location on shaft before d...

Страница 70: ...aning Burners and Flame Sensor The following items must be performed by a qualified service technician If the burners develop an accumulation of light dirt or dust they may be cleaned by using the fol...

Страница 71: ...cuit break er 17 Run the furnace through two complete heating cycles to check for proper operation 18 Install control door when complete 2 1 2 in 64 4 1 1 4 in 31 8 A11405 Fig 66 Igniter Position Top...

Страница 72: ...the condensate trap 7 Connect the leads of the condensate heat pad if used 8 Connect external drain piping to the condensate drain elbow or drain extension pipe 9 Turn gas on at electric switch on ga...

Страница 73: ...ndensing heat exchanger some water will accumulate in the unit as a result of the heat transfer process Therefore once it has been operated it cannot be turned off and left off for an extended period...

Страница 74: ...ergized for a 15 sec post purge period The blow er motor BLWM and air cleaner terminal EAC 1 will remain energized for 90 120 150 or 180 sec depending on the blower OFF delay selection The furnace con...

Страница 75: ...code of the previous fault or status code 11 1 short and 1 long flash if there was no previous fault After the control repeats the code 4 times the control will go through a brief component test sequ...

Страница 76: ...76 A190093 Fig 69 Troubleshooting Guide Cont...

Страница 77: ...77 344442 2 Rev C A190259 Fig 70 Wiring Diagram...

Страница 78: ...act BRYANT HEATING COOLING SYSTEMS Consumer Relations Department P O Box 4952 Syracuse New York 13221 4952 1 800 428 4326 Have available the model number series number and serial number located on the...

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