Carrier N96VSN Installation, Start-Up, Operating, Service And Maintenance Instructions

Single-stage, non-communicating, 25-speed, ecm multipoise, condensing gas furnace

Hide thumbs

page of 76

/ 76
Bookmarks

Quick Links

Download this manual

N96VSN (Series B)

Single-Stage, Non-Communicating, 25-Speed,

ECM Multipoise, Condensing Gas Furnace

NOTE: Read the entire instruction manual before starting the installation.

TABLE OF CONTENTS

REQUIRED NOTICE FOR MASSACHUSETTS INSTALLATIONS

IMPORTANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Table 1 – Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Table 2 – Minimum Clearances to Combustible Materials

for All Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Table 3 – Loose Parts Bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

CODES AND STANDARDS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCE-

DURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

AIR FOR COMBUSTION AND VENTILATION . . . . . . . . . . . . . . 8

Table 4 – Minimum Free Area Required for Each Combustion Air

Opening or Duct to Outdoors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 5 – Minimum Space Volumes for 100% Combustion, Ventila-

tion and Dilution Air from Outdoors . . . . . . . . . . . . . . . . . . . . . . . 9

CONDENSATE TRAP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

CONDENSATE DRAIN CONNECTION . . . . . . . . . . . . . . . . . . . . 13

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 6 – Opening Dimensions - In. (mm) . . . . . . . . . . . . . . . . . 18

FILTER ARANGEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Table 7 – Filter Media Pressure Drop (Clean) Versus Airflow - in. w.c.

(Pa) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table 8 – Filter Media Pressure Drop (Clean) Versus Face Velocity-

in. w.c. (Pa) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table 9 – Air Filter Selection and Duct Sizing - In. (mm) . . . . . 21

Table 10 – Air Filter Located in Filter Cabinet . . . . . . . . . . . . . . 21

AIR DUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

GAS PIPING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Table 11 – Maximum Capacity of Pipe . . . . . . . . . . . . . . . . . . . . 23

ELECTRICAL CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Table 12 – Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

ACCESSORIES (See

Fig. 36

VENTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Table 13 – Vent Termination Kit for Direct Vent

(2-pipe) Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Table 14 – Approved Combustion-Air and Vent Pipe, Fitting

and Cement Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Table 15 – Maximum Equivalent Vent Length - Ft. . . . . . . . . . . 39

Table 16 – Deductions from Maximum Equivalent Vent Length - Ft.

(M) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Table 17 – Maximum Allowable Exposed Vent Lengths in Uncondi-

tioned Space Insulation Table - Ft. / M . . . . . . . . . . . . . . . . . . . . 42

Table 18 – Hanger Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

AIR DELIVERY - CFM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Table 19 – Air Delivery - CFM (with filter) . . . . . . . . . . . . . . . . 47

Table 20 – Default Airflow Settings . . . . . . . . . . . . . . . . . . . . . . 51

FURNACE CONTROL PROGRAMMING

AND NAVIGATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Table 21 – System Status Display Codes. . . . . . . . . . . . . . . . . . . 51

Table 22 – Main Menu Options . . . . . . . . . . . . . . . . . . . . . . . . . . 52

SERVICE LABEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Installation, Start-up, Operating,

Service and Maintenance Instructions

and

Fig.

37.) . . . . . . . . . . . . . . . . . . . 27

START-UP, ADJUSTMENT, AND SAFETY CHECK . . . . . . . . . 54

Table 23 – Test Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Table 24 – Altitude Derate Multiplier for USA. . . . . . . . . . . . . . 57

Table 25 – Gas Rate (CU ft./hr). . . . . . . . . . . . . . . . . . . . . . . . . . 58

Table 26 – Orifice Size and Manifold Pressure (in. w.c.) for Gas Input

Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

SERVICE AND MAINTENANCE PROCEDURES. . . . . . . . . . . . 60

ELECTRICAL CONTROLS AND WIRING . . . . . . . . . . . . . . . . . 61

CARE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

WINTERIZATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

GAS FURNACE CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

PARTS REPLACEMENT INFORMATION GUIDE . . . . . . . . . . . 74

MODEL NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

To learn more about this appliance and installation via a mobile device,

go to

http://www.fasthvacrparts.com/NFC

access airflow tables or troubleshooting guide on your mobile device go

mlctraining.com/training/techdocs/94/

Mobile App QR Code

Use of the AHRI Certified TM Mark indicates

a manufacturer's participation in the program.

For verification of certification for individual

products, go to www.ahridirectory.org .

or use the QR code below. To

or use the QR code below.

Airflow QR Code

Need help?

Do you have a question about the N96VSN and is the answer not in the manual?

Questions and answers

Summary of Contents for Carrier N96VSN

Page 1 N96VSN (Series B) Single-Stage, Non-Communicating, 25-Speed, ECM Multipoise, Condensing Gas Furnace Installation, Start-up, Operating, Service and Maintenance Instructions NOTE: Read the entire instruction manual before starting the installation. TABLE OF CONTENTS REQUIRED NOTICE FOR MASSACHUSETTS INSTALLATIONS START-UP, ADJUSTMENT, AND SAFETY CHECK ..54 IMPORTANT .
Page 2 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Portions of the text and tables are reprinted from 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.
Page 3 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions A210796 Fig. 1 – Dimensional Drawing Table 1 – Dimensions SHIP WT. FURNACE SIZE LB (KG) CABINET WIDTH OUTLET WIDTH BOTTOM INLET WIDTH AIR INTAKE 0401410 14-3/16 (361) 12-1/2 (319)
Page 4 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions SAFETY CONSIDERATIONS WARNING WARNING FIRE, INJURY, OR DEATH HAZARD Failure to follow this warning could result in property damage, personal FIRE, INJURY, OR DEATH HAZARD injury, or death. Failure to follow this warning could result in property damage, personal Do not bypass any of the safety controls in the furnace, including but injury, or death.
Page 5 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions 13. These furnaces SHALL NOT be installed directly on carpeting, This is the safety-alert symbol . When you see this symbol on the combustible tile, or any other combustible material other than wood furnace and in instructions or manuals, be alert to the potential for flooring.
Page 6 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions The furnace should be sized to provide 100 percent of the design heating load requirement plus any margin that occurs because of furnace model size capacity increments. None of the furnace model sizes can be used if the heating load is 20,000 BTU or lower.
Page 7 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions American Gas Association, 400 N. Capitol, N.W., Washington DC 3. After touching the chassis, you may proceed to service the control 20001 or connecting wires as long as you do nothing to recharge your body with static electricity (for example;...
Page 8 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions AIR FOR COMBUSTION AND VENTILATION CAUTION Introduction Direct Vent (2-pipe) Applications PERSONAL INJURY AND/OR PROPERTY DAMAGE When the furnace is installed as a direct vent (2-pipe) furnace, no special HAZARD provisions for air for combustion are required.
Page 9 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions The requirements for combustion and ventilation air depend upon Fig. 6 illustrates how to provide TWO OUTDOOR OPENINGS, whether or not the furnace is located in a space having a volume of at...
Page 10 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury or death. Many homes require air to be supplied from outdoors for furnace combustion, ventilation, and dilution of flue gases.
Page 11 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions 2. An attic or crawlspace may be considered a space that freely To Relocate the Condensate Trap: communicates with the outdoors provided there are adequate • Orient the furnace in the downflow position.
Page 12 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions A230046 A230049 Fig. 11 – Horizontal Left Configuration (Appearance may vary) To Relocate the Condensate Trap: • Remove the knockout or plug in the casing for the condensate trap. • Install the grommet in the casing when required for direct-vent horizontal applications.
Page 13 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions CONDENSATE DRAIN CONNECTION CAUTION PROPERTY DAMAGE HAZARD Failure to follow this caution may result in burst water pipes and/or property damage. If a condensate pump is installed, a plugged condensate drain or a failed pump may cause the furnace to shut down.
Page 14 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions For Right Side Condensate Drain: CAUTION 1. Remove the 7/8-in. knockout or plug from the right side of the casing. See Fig. 15 for suggested knockout or plug removal CUT HAZARD technique.
Page 15 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions condensate and compatible with mineral and vegetable oils, such as canola oil. Allow at least 1/4-in. per foot (20 mm per meter) of slope down and away from the furnace in horizontal sections of drain line.
Page 16 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions A10493 Fig. 20 – Duct Flanges A230007 Return Air Connections Fig. 18 – Horizontal Drain Trap Grommet WARNING INSTALLATION NOTICE FIRE HAZARD A failure to follow this warning could cause personal injury, death This furnace is certified to leak 2% or less of nominal air conditioning and/or property damage.
Page 17 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Supply Air Connections NOTE: For downflow applications, this furnace is approved for use on combustible flooring when any one of the following accessories are used: HORIZONTAL TOP RETURN NOT PERMITTED FOR ANY MODEL •...
Page 18 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions the heat exchanger can be viewed for possible openings using light CAUTION assistance or a probe can be inserted for sampling the air stream. The cover attachment shall prevent leaks.
Page 19 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions FILTER ARANGEMENT WARNING FIRE, CARBON MONOXIDE AND POISONING HAZARD Failure to follow this warning could result in fire, personal injury or death. Never operate a furnace without a filter or filtration device installed.
Page 20 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Table 7 – Filter Media Pressure Drop (Clean) Versus Airflow - in. w.c. (Pa) Representative After-Market Filter Media Factory-Accy 14 x 25 Filter Washable Fiberglass Pleated (1-in. / 2.5 cm) (1-in.
Page 21 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Table 9 – Air Filter Selection and Duct Sizing - In. (mm) FURNACE FILTER SIZE FILTER CASING BOTTOM † SIDE RETURN TYPE RETURN WIDTH 16 x 25 x 3/4 14 x 25 x 3/4...
Page 22 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions American Society of Heating, Refrigerating and Air Conditioning CAUTION Engineers (ASHRAE) or consult The Air Systems Design Guidelines reference tables available from your local distributor. The duct system should be sized to handle the required system design CFM at the design FURNACE DAMAGE HAZARD external static pressure.
Page 23 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Table 11 – Maximum Capacity of Pipe Nominal: 1/2 (12.7) 3/4 (19.0) 1 (25.4) 1-1/4 (31.8) 1-1/2 (38.1) Actual ID: 0.622 0.824 1.049 1.380 1.610 Length (ft) Capacity in Cubic Feet of Gravity 10 (3.0)
Page 24 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions ELECTRICAL CONNECTIONS WARNING ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD Failure to follow safety warnings could result in dangerous operation, serious injury, death or property damage. Improper servicing could result in dangerous operation, serious injury, death or property damage.
Page 25 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions CAUTION FURNACE MAY NOT OPERATE HAZARD Failure to follow this caution may result in intermittent furnace operation. Furnace control must be grounded for proper operation or else control will lock out. Control must remain grounded through green/yellow wire routed to gas valve and manifold bracket screw.
Page 26 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions 7. Install the green ground screw to the J-Box bracket and attach both ground wires to the green ground screw. 8. Connect any code required external disconnect(s) to field power wiring.
Page 27 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions ACCESSORIES (See Fig. 36 Fig. 37.) 1. Electronic Air Cleaner (EAC) Connect an accessory Electronic Air Cleaner (if used) using 1/4-in. female quick connect terminals to the two male 1/4-in.
Page 28 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Notes for Thermostat Drawings: manufacturer’s installation instructions for the polypropylene venting system installation. 1. Thermostat output signals may vary. Consult thermostat installation instructions for more information. NOTE: When using polypropylene venting systems, all venting materials used, including the vent terminations, must be from the same 2.
Page 29 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions L’apprêt GVS-65 (Purple) et le ciment-solvant GVS-65 doivent être Les autoritées ayant juridiction (inspecteurs de gas, inspecteurs en utilisé avec les Royal Pipe. Système IPEX 636, apprêt PVC/CPVC, bâtiments, département des incendies, etc) devraient être consultées Purple pour évacuation des gaz de combustion et système IPEX 636(1)t,...
Page 30 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions the exhaust gases from one appliance from contaminating the WARNING combustion air of other gas appliances. Do not take combustion air from inside the chimney when using CARBON MONOXIDE POISONING HAZARD ventilated combustion air or single-pipe vent option.
Page 31 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions in the Air For Combustion and Ventilation Section. Do not use an pipe adapter on the furnace. See Fig. 48. This short inlet air pipe helps to abandoned chimney to supply outside air to the furnace. See Fig.
Page 32 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions A12326 Fig. 41 – Direct Vent Termination Clearance NOTE: The following is based upon National codes for gas appliances and is provided as a reference. Refer to local codes which may supersede these standards and/or recommendations.
Page 33 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions A12325 Fig. 42 – Ventilated Combustion Air and Non-Direct Vent Termination Clearance NOTE: The following is based upon National codes for gas appliances and is provided as a reference. Refer to local codes which may supersede these standards and/or recommendations.
Page 34 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions A190032 Fig. 43 – Inside Corner Termination Inside Corner Terminations Inside corner vent terminations are permitted provided that: • Only two exterior walls come together to form an angle of 90 degrees to 135 degrees. There are no other exterior walls attached to either wall to form an alcove.
Page 35 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions 1. Comply with all clearance requirements stated in Fig. 41 Fig. 42 WARNING per application. 2. Termination or termination kit should be positioned where vent CARBON MONOXIDE POISONING HAZARD vapors will not damage plants/shrubs, air conditioning equipment Failure to follow the instructions outlined below for each appliance or utility meters.
Page 36 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions with a tight radius 2-in. (51 mm) 90 degree elbow is required to be Refer to Fig. 48 for terminations approved for use in Alberta and attached to the furnace. See Fig.
Page 37 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions A93034 Fig. 49 – Combustion Air and Vent Pipe Diameter Transition Location and Elbow Configuration Recommended Combustion Air Inlet Moisture Trap NOTICE OPTIONAL CONFIGURATION FOR COMBUSTION AIR INLET PIPE In applications where there is a risk of excessive moisture entering the...
Page 38 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions 4. If a Tee is used on the termination (Alberta and Saskatchewan, when required) record the equivalent length of the Tee used. 5. Calculate Total Equivalent Vent Length by adding the equivalent lengths of the fittings to the lengths of the individual vent and combustion air pipes.
Page 39 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Table 15 – Maximum Equivalent Vent Length - Ft. NOTE: Maximum Equivalent Vent Length (MEVL) includes standard and concentric vent termination and does NOT include elbows. Use Table 16 Deductions from Maximum Equivalent Vent Length to determine allowable vent length for each application.
Page 40 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Combustion Air and Vent Piping Insulation Guidelines NOTE: Use closed cell, neoprene insulation or equivalent. The vent pipe may pass through unconditioned areas. The amount of exposed pipe allowed is shown in Table 1.
Page 41 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions A11327A HORIZONTAL LEFT-VERTICAL VENT CONFIGURATION A230011 UPFLOW VERTICAL VENT Fig. 53 – Upflow Configuration (Appearance May Vary) See “Notes for Venting Options” A11328A HORIZONAL LEFT-LEFT VENT CONFIGURATION A11311A DOWNFLOW LEFT CONFIGURATION...
Page 42 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions ALTERNATE COMBUSTION AIR CONNECTIONS A11335 Fig. 56 – Horizontal Right (Appearance May Vary) See “Notes for Venting Options” Notes for venting options Requires Internal Vent Kit See Product Data for Current Kit Number 1.
Page 43 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Maximum Allowable Exposed Vent Length in Unconditioned Space (Metric) 40,000* BTUH 60,000 BTUH Unit Size 3/8-in. 1/2-in. Uninsulated Uninsulated 3/8-in. Insulation 1/2-in. Insulation Insulation Insulation Winter Pipe Dia. Design Temp 6.1 15.2 13.7...
Page 44 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions 14. Wipe excess cement from joint. A continuous bead of cement will WARNING be visible around perimeter of a properly made joint. 15. Handle pipe joints carefully until cement sets.
Page 45 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Concentric Vent 2-Pipe and 1-Pipe Vent Termination Single or multiple concentric vent must be installed as shown in Fig. NOTE: Follow the instructions of the vent terminal manufacturer. These Maintain the required separation distance between vents or pairs of vents instructions are provided as a reference, only.
Page 46 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Venting System Length Calculations The Total Equivalent Vent Length (TEVL) for EACH combustion air or vent pipe equals the length of the venting system, plus the equivalent length of elbows used in the venting system from Table Standard vent terminations or factory accessory concentric vent terminations count for zero deduction.
Page 47 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions AIR DELIVERY - CFM Table 19 – Air Delivery - CFM (with filter) Airflow External Static Pressure (in. w.c.) Unit Size Default Setting Setting Cont. Fan 0401410 Heating Low Cooling...
Page 48 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Table 19 – Air Delivery - CFM (with filter) (Continued) Airflow External Static Pressure (in. w.c.) Unit Size Default Setting Setting Cont. Fan 0601412 Heating/ Low Cooling 1035 1005 1055...
Page 49 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Table 19 – Air Delivery - CFM (with filter) (Continued) Airflow External Static Pressure (in. w.c.) Unit Size Default Setting Setting Cont. Fan 1015 1050 1005 1075 1035 1150 1110...
Page 50 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Table 19 – Air Delivery - CFM (with filter) (Continued) Airflow External Static Pressure (in. w.c.) Unit Size Default Setting Setting Cont. Fan 1025 1130 1065 1000 1225 1165 1105...
Page 51 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Table 20 – Default Airflow Settings Designated Airflow Settings Default Airflow Settings Unit Size Heating High Cooling Low Cooling Heating Const. Fan 0401410 (9 - 15) (1 - 3) 0401712...
Page 52 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Table 22 – Main Menu Options Display Menu Item Idle/Stand by Mode ,... Displays the current furnace operating mode or active fault code. Faults code menu stores the 7 latest faults in memory. If no faults, None (...
Page 53 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions A221507 Fig. 58 – 3 Digit Display Flow Chart SERVICE LABEL A221524 Fig. 59 – Service Label Information Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 54 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions START-UP, ADJUSTMENT, AND SAFETY CAUTION CHECK General CUT HAZARD Failure to follow this caution may result in personal injury. CAUTION Sheet metal parts may have sharp edges or burrs. Use care and wear...
Page 55 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions WIRING DIAGRAM A221525 Fig. 60 – Wiring Diagram Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 56 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Prime Condensate Trap with Water WARNING WARNING FIRE OR EXPLOSION HAZARD CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury, death, and/or property damage. Failure to follow these warnings could result in personal injury or death.
Page 57 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Heating value = 1050 Btu/cu ft. NOTICE Specific gravity = 0.62 Therefore: Orifice No. 44 The NATURAL GAS manifold pressure adjustments in Table 26 * Furnace is shipped with No. 44 orifices. In this example, all main compensate for BOTH altitude AND gas heating value.
Page 58 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions g. Jumper R and W thermostat connections on control to start Table 25 – Gas Rate (CU ft./hr) furnace, see Fig. SIZE OF TEST DIAL SIZE OF TEST DIAL SEC.
Page 59 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Table 26 – Orifice Size and Manifold Pressure (in. w.c.) for Gas a. Turn gas valve ON/OFF switch to OFF. Input Rate b. Remove water column manometer or similar device from manifold pressure tap.
Page 60 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions 4. Refer to the FURNACE CONTROL PROGRAMMING AND f. Reconnect inducer motor wires, replace door, and turn on 115-V NAVIGATION section of this manual for instructions on adjusting power. the blower speed.
Page 61 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions digit being the number of long flashes. The major status code is WARNING displayed in the first 2 digits of the display. The minor status code is displayed in the third digit.
Page 62 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions internal filter with this furnace. See “Filter Arrangement” under the WARNING “Installation” section of this manual. NOTE: If the filter has an airflow direction arrow, the arrow must point ELECTRICAL SHOCK AND FIRE HAZARD toward the blower.
Page 63 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions f. After servicing the blower, reverse steps a through e, resealing combustion air pipe per installation instructions. g. Tighten all clamps 15 lb -in. Fig. 65 For Steps 5 through 14.
Page 64 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions b. Verify blower is rotating in the correct direction 14. Remove wires from both rollout switches. 18. If furnace is operating properly, RELEASE BLOWER DOOR 15. Slide one-piece burner out of slots on sides of burner assembly.
Page 65 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Flushing Collector Box and Drainage System WARNING ELECTRICAL SHOCK AND FIRE HAZARD Failure to follow this warning could result in personal injury, death, and/or property damage. Turn off the gas and electrical supplies to the furnace and install lockout tag before performing any maintenance or service.
Page 66 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions 13. Clean port on collector box with a small wire. WARNING To re-install Condensate Drain and Trap: 1. Remove adhesive backing from condensate trap gasket ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD 2.
Page 67 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions 10. Repeat Steps 5 through 8. WARNING 11. If a condensate pump is used, check with pump manufacturer to verify pump is safe for use with antifreeze used. Allow pump to FIRE OR EXPLOSION HAZARD start and pump anti-freeze to open drain.
Page 68 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions is energized. When the thermostat is satisfied, the R-to-G-and-Y circuit are opened. Simultaneously, the electronic air cleaner terminal EAC-1 is The outdoor unit stops, and the furnace blower BLWM and electronic air...
Page 69 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions When the thermostat “calls for low-cooling”, the blower motor BLWM will switch to operate at low-cooling airflow. When the thermostat is satisfied, the blower motor BLWM will operate an additional 90 seconds at low-cooling airflow before transitioning back to continuous-blower airflow.
Page 70 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions TROUBLESHOOTING A221597 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 71 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions A221598 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 72 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions A221599 Fig. 70 – Troubleshooting Guide Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 73 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions GAS FURNACE CHECKLIST GAS FURNACE CHECKLIST Installation Date: ____________________________ Furnace Thermostat Humidifier Indoor Coil Outdoor Unit Furnace Location_____________________________ Furnace Orientation: ____Upflow Gas Adjustment LOCAL GAS HEAT CONTENT_____________(btu/cu. ft.) (contact your local gas utility-not required for propane) INLET SUPPLY PRESSURE** MANIFOLD PRESSURE: High fire___________ in.
Page 74 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions PARTS REPLACEMENT INFORMATION GUIDE Casing Group Media Cabinet (when used) Gas Control Group Blower door Bottom plate Burner Control door Flame sensor Door knob assembly Gas valve Top filler plate...
Page 75 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Page 76 N96VSN (Series B): Installation, Start-up, Operating, Service and Maintenance Instructions Catalog No: N96VSN2-01SI REV B © 2023 Carrier. All rights reserved. Edition Date: 11/23 Replaces: N96VSN2-01SI REV A A Proud Member of the Carrier Family Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

This manual is also suitable for:

B series