American Standard S9X2 Installer's Manual

American Standard S9X2 Installer's Manual

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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Installer's Guide
Upflow/Horizontal and Dedicated Downflow
Gas-Fired, Direct/Non-Direct Vent, Single Stage / Two Stage
Condensing Furnaces with High Efficiency Motor
U U p p f f l l o o w w , , C C o o n n v v e e r r t t i i b b l l e e t t o o
H H o o r r i i z z o o n n t t a a l l R R i i g g h h t t o o r r H H o o r r i i z z o o n n t t a a l l
L L e e f f t t , , a a n n d d D D o o w w n n f f l l o o w w
S9X1
S9X2
S9B1
!
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.
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
CAUTION
S S A A F F E E T T Y Y W W A A R R N N I I N N G G
1 1 8 8 - - C C E E 1 1 2 2 D D 1 1 - - 1 1 D D - - E E N N
N N o o t t e e : : Graphics in this document are for representation
only. Actual model may differ in appearance.
18-CE12D1-1D-EN

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Summarization of Contents

SAFETY SECTION — FURNACES
Safety Warnings and Precautions
Essential safety guidelines, warnings, and precautions for furnace installation and operation.
Furnace Installation Guidelines
Installation Requirements
Key requirements for furnace installation, including safety, general practices, and clearances.
Venting and Airflow
Procedures and requirements for furnace venting, combustion air, and ventilation.
Gas Piping and Valve Adjustment
Detailed instructions for gas piping, input checks, and gas valve adjustments.
High Altitude Derate and Venting Tables
Guidance for high altitude installations and maximum vent length tables.
Outline Drawings
Cabinet Dimensions
Dimensional drawings for various upflow and downflow furnace cabinet sizes.
Duct Connections
Supply and Return Ducting
Instructions for connecting supply and return ductwork to the furnace.
Return Air Filters
Filter Installation Guidance
Procedures for installing return air filters in upflow and downflow furnace configurations.
Electrical Connections
Field Wiring and Twinning
Wiring diagrams for furnace connections and instructions for twinning furnaces.
Condensate Drain Instructions
Drainage Procedures
Instructions for condensate drain installation in vertical and horizontal furnace applications.
General Start-up and Adjustment
Start-up Procedures
Steps for initial furnace start-up, including preliminary inspections and adjustments.
Furnace Combustion Air Exhaust Options
Orientation and Venting Options
Instructions for configuring combustion air venting for different furnace orientations.
Integrated Furnace Control Menu
Control Menu Navigation and Settings
Guide to navigating the IFC menu for system setup, airflow, and fault clearing.
Display Codes and Fault Recovery
Explanation of IFC display codes, error codes, and procedures for fault recovery.
Setting Airflow
Airflow Measurement and Adjustment
How to measure external static pressure and adjust airflow using tap settings.
Sequence of Operation
Heating and Cooling Cycles
Detailed step-by-step descriptions of the furnace's operational sequences for heating and cooling.

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