American Standard S9X2 - User Manual

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Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning
equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person
could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that
are attached to the equipment.
September 2020
1188--CCEE1122DD11--11DD--EENN
Upflow/Horizontal and Dedicated Downflow
Gas-Fired, Direct/Non-Direct Vent, Single Stage / Two Stage
Condensing Furnaces with High Efficiency Motor
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S9X1
S9X2
S9B1
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only. Actual model may differ in appearance.
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CAUTION
!
COIL REQUIREMENT!
Failure to follow this Caution could result in property damage or personal injury. 4GXC* and
4MXC* coils installed on upflow furnaces in vertical, horizontal left, or horizontal right
orientations without a factory installed metal drain pan shield must use a MAY*FERCOLKITAA
kit. Coils installed on upflow furnaces must have drain pans that are suitable for 400° F
(205°C) or have a metal drain pan shield. Downflow furnaces do not require a metal drain pan
shield or the use of the MAY*FERCOLKITAA kit. See Installer’s Guide for more information.
18-CE12D1-1D-EN
Installer’s Guide

Summary

Furnace Installation Guidelines

Safety Practices and Precautions

Essential safety practices and precautions for furnace installation, servicing, and operation.

Locations and Clearances

Furnace General Installation

Gas Piping

Combustion and Input Check

Gas Valve Adjustment

High Altitude Derate

General Venting

Special Case Venting

Vent Terminations

Horizontal Venting Through Wall

Air for Combustion and Ventilation

Duct Connections

Return Air Filters

Electrical Connections

Field Wiring

Diagrams and notes for field wiring S9B1 furnaces with thermostats.

Twinning

Condensate Drain Instructions

Vertical Applications

Horizontal Applications

General Start-up and Adjustment

Preliminary Inspections

Checks to perform before powering up the furnace for start-up.

Lighting Instructions

Procedure for checking unit operation through a complete cycle.

Control and Safety Switch Adjustment

Procedure for checking the limit switch operation and adjusting controls.

Furnace Combustion Air Exhaust Options

Upflow Position - Top Vented Combustion Air

Upflow Position - Left Side Vented Combustion Air

Horizontal Left Position - Side Vented Combustion Air

Furnace in Horizontal Left Position - Top Vented Combustion Air

Furnace in Horizontal Right Position - Left Vented Combustion Air

Downflow Furnace - Top Vented Combustion Air

Downflow Furnace - Left Side Vented Combustion Air

Integrated Furnace Control Menu

Setting Airflow

Integrated Furnace Control Display Codes

Fault Code Recovery

Sequence of Operation

American Standard S9X2 Specifications

General

Model	S9X2
Efficiency Rating	up to 96% AFUE
Stages	Two-Stage
Ignition	Hot Surface Ignition
Fuel Type	Natural Gas
Heating Capacity	40, 000 to 120, 000 BTU/hr
Warranty	10-year limited warranty on internal functional parts
Cabinet	Heavy-Gauge, Insulated Steel Cabinet