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Carrier G96VTN User Manual

Carrier G96VTN
80 pages
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. 440 01 4801 00 11/14/2019
INSTALLATION INSTRUCTIONS
Two--Stage, Non--Communicating, Variable Speed, 35” Tall
High Efficiency Condensing Gas Furnace
F96VTN and G96VTN
(Series A)
NOTE: Read the entire instruction manual before starting the installation.
SECTIONS
SAFETY CONSIDERATIONS 4.........................
INTRODUCTION 5...................................
CODES AND STANDARDS 6...........................
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS 7...
ACCESSORIES 7.....................................
LOCATION 7........................................
AIR FOR COMBUSTION AND VENTILATION 8..........
CONDENSATE TRAP 9................................
CONDENSATE DRAIN 13.............................
INSTALLATION 16...................................
AIR DUCTS 26.......................................
GAS PIPING 27......................................
ELECTRICAL CONNECTIONS 28.......................
VENTING 35........................................
START-- UP, ADJUSTMENT, AND SAFETY CHECK 56......
SERVICE AND MAINTENANCE PROCEDURES 66........
SEQUENCE OF OPERATION 76........................
PARTS REPLACEMENT GUIDE 79......................
TABLES
Loose Parts Bag Contents 6..............................
Minimum Clearances to Combustible Materials 5.............
Minimum Free Area Required 10.........................
Minimum Space Volumes 10.............................
Filter Size Information 20...............................
Opening Dimensions 20................................
Air Delivery CFM 22...................................
Maximum Capacity of Pipe 27...........................
Electrical Data 29......................................
Combustion--Air Vent Pipe, Fitting & Cement Material.. 55.....
Vent T e rmination Kit for Direct Vent (2--Pipe) Systems 38......
Hangar Spacing 52.....................................
Maximum Allowable Exposed Vent Lengths Insulation 48......
Maximum Equivalent Vent Length 44......................
Deductions from Maximum Equivalent Vent Length 44........
Altitude Derate Multiplier for U.S.A. 59....................
Blower Of f Delay Setup Switch 61........................
Gas Rate 66..........................................
Orifice Size and Manifold Pressure 63.....................
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 .
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.
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Carrier G96VTN Specifications

General IconGeneral
Fuel TypeNatural Gas
AFUE96%
Blower MotorVariable Speed
Ignition SystemHot Surface Ignition
WarrantyLimited Lifetime Heat Exchanger, 10-Year Parts
Heating Capacity40, 000 - 120, 000 BTU/h

Summary

SAFETY CONSIDERATIONS

WARNING: FIRE, EXPLOSION, ELECTRICAL SHOCK, AND CARBON MONOXIDE POISONING HAZARD

Critical warnings about hazards from improper operation, injury, death, or property damage.

CODES AND STANDARDS

Gas Piping and Gas Pipe Pressure Testing

Guidelines for gas piping installation and pressure testing per national codes.

Electrical Connections

Compliance with National Electrical Code (NEC) and Canadian Electrical Code (CSA).

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS PROCEDURE

LOCATION

AIR FOR COMBUSTION AND VENTILATION

Outdoor Combustion Air Method

Method for providing sufficient air for combustion and ventilation from outdoors.

CONDENSATE TRAP

CONDENSATE DRAIN CONNECTION

INSTALLATION

Return Air Connections

Guidelines for connecting return-air ducts to the furnace, avoiding prohibited locations.

Supply Air Connections

Instructions for connecting supply-air ducts to furnace flanges, avoiding casing modification.

RETURN AIRCONNECTIONS

SUPPLY AIRCONNECTIONS

AIR DUCTS

GAS PIPING

WARNING: FIRE OR EXPLOSION HAZARD

Critical warning about hazards associated with gas piping, purging, and leak testing.

ELECTRICAL CONNECTIONS

WARNING: ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD

Critical warning regarding electrical hazards during installation, modification, or servicing.

THERMOSTATS

VENTING

VENTING SYSTEMS

Direct Vent / 2-Pipe System

Description of direct vent systems where air is from outdoors and flue products are discharged outdoors.

Ventilated Combustion Air Systems

Description of systems where air is piped from a ventilated space to the furnace.

LOCATING THE VENT TERMINATION

SIZE THE VENT AND COMBUSTION AIR PIPES

CONFIGURE THE FURNACE

Install the Vent and Combustion Air Pipes

Steps for installing vent and combustion air pipes, including removing knockouts and rotating elbows.

INSTALLING THE VENT PIPE ADAPTER AND COMBUSTION AIR PIPE ADAPTER

Optional Installation of the Vent Pipe

Installing the Vent Termination

Instructions for installing vent terminations, including roof and sidewall types.

VENTING SYSTEM LENGTH CALCULATIONS

START-UP, ADJUSTMENT, AND SAFETY CHECK

Setup Switches

Configuration of setup switches for application requirements and airflow settings.

PRIME CONDENSATE TRAP WITH WATER

CHECK INLET GAS PRESSURE

ADJUST MANIFOLD PRESSURE

ADJUST TEMPERATURE RISE

ADJUST COOLING AIRFLOW – HIGH-SPEED AND LOW-SPEED COOLING

CHECK SAFETY CONTROLS

SERVICE

Electrical Controls and Wiring

TROUBLESHOOTING

CLEANING BURNERS AND FLAME SENSOR

CLEANING CONDENSATE DRAIN AND TRAP

TROUBLESHOOTING GUIDE

SEQUENCE OF OPERATION

1. Two-Stage Heating (Adaptive Mode) with Single-Stage Thermostat

Operation sequence for two-stage heating with a single-stage thermostat using adaptive control.

2. Two-Stage Thermostat and Two-Stage Heating

Operation sequence for two-stage heating with a two-stage thermostat.

3. Cooling mode

Operation sequence for cooling mode, including single-speed and two-speed cooling.

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