American Standard S9B1 Installer's Manual

American Standard S9B1 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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Table of Contents
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Summarization of Contents

Furnace Installation Guidelines
Safety Practices and Precautions
Critical safety rules for installation, servicing, and operation.
General Guidelines
General installation advice, codes, and recommendations.
Locations and Clearances
Requirements for furnace placement, including space and combustible material clearances.
Furnace General Installation Procedures
Furnace General Installation
Foundational procedures for installing the furnace, including horizontal mounting.
Gas Piping
Instructions for connecting the gas supply, including default configurations and conversion.
Combustion and Input Check
Procedures for verifying furnace gas input rate and combustion performance.
Gas Valve Adjustment
Steps to adjust manifold pressure for optimal gas valve operation and input.
High Altitude Derate
Guidelines for adjusting furnace input for installations at higher elevations.
Venting and Airflow Requirements
General Venting
Requirements for venting the furnace exhaust and combustion air to the outdoors.
Vent Terminations
Approved methods and locations for terminating vent and air intake pipes.
Maximum Vent Length Tables
Tables specifying maximum vent lengths for S9X1, S9B1, and S9X2 models by altitude.
Horizontal Venting
Specific instructions for horizontal vent pipe installations, including requirements for 3" venting.
Downward Venting and Air Supply
Guidelines for downward venting and providing adequate combustion/ventilation air.
Duct Connections and Air Filters
Duct Connections
Procedures for connecting supply and return ductwork to the furnace in various configurations.
Return Air Filters
Installation and requirements for return air filters in upflow and downflow furnaces.
Electrical Connections and Twinning
Electrical Connections
Wiring diagrams and instructions for connecting thermostats and outdoor units.
Twinning Furnaces
Wiring diagrams and notes for connecting two furnaces together for increased capacity.
Condensate Drain Instructions
Vertical Applications
Instructions for routing condensate drains for upflow furnaces in vertical configurations.
Downflow Furnace Condensate
Connecting condensate drains for downflow furnaces with left or right side exits.
Horizontal Applications
Guidelines for condensate drainage in horizontal furnace installations, including auxiliary pans.
Start-up, Adjustment, and Controls
General Start-up and Adjustment
Procedures for initial furnace startup, including inspections, lighting, and safety checks.
Furnace Combustion Air Exhaust Options
Instructions for configuring combustion air venting in various furnace orientations.
Integrated Furnace Control Menu
Navigating and setting options for the IFC, including menus, modes, and codes.
Setting Airflow
Guidance on measuring ESP and adjusting fan speeds for optimal airflow.
Fault Codes and Sequence of Operation
Integrated Furnace Control Display Codes
Explanation of menu options and error codes displayed by the IFC for troubleshooting.
Fault Code Recovery
Steps to view, clear, and reset fault codes and factory defaults on the IFC.
Sequence of Operation
Detailed step-by-step operation sequences for various heating and cooling modes.

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