Trane S8X2B080M4PSBA 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.
November 2020
1188--CCEE1166DD11--11BB--EENN
Upflow/Downflow/Horizontal
Gas-Fired, 1–Stage and 2–Stage Induced Draft Furnaces with
High Efficiency Motor
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Single Stage Two Stage
S8B1
S8X1
S8X2
S8B1B080M4PSBA
S8B1D120M5PSBA
S8X1B080M4PSBA
S8X1D120M5PSBA
S8X2B080M4PSBA
S8X2D120M5PSBA
NNoottee:: This installer’s Guide is used for multiple furnace families. Models may
have a “T” in the 12th digit designating they meet California less than 40
ng/J (NOx) emissions requirements.
NNoottee:: Graphics in this document are for
representation only. Actual model may
differ in appearance.
18-CE16D1-1B-EN
Installer’s Guide

Trane S8X2B080M4PSBA Specifications

General

Brand	Trane
Model	S8X2B080M4PSBA
Category	Furnace
Language	English

Summary

Safety Section Non-Condensing Furnaces

Fire and Explosion Hazards

Warnings regarding fire or explosion risks from gas leaks, improper handling, and testing.

Carbon Monoxide Hazards

Warnings about carbon monoxide poisoning due to improper venting or system issues.

Electrical Shock Hazards

Warnings about electrical hazards including shock, fire, and explosion during servicing.

Installation and Operation Hazards

Hazards related to installation in confined spaces, bypassing safety switches, and manual lighting.

Service and Maintenance Hazards

Hazards during servicing, including power discharge, component contact, and blower door safety.

Application and Usage Hazards

Hazards related to installation in mobile housing and during electrical/fuel failures.

Environmental and Material Hazards

Hazards from flammable storage, gas connectors, corrosive atmospheres, and flooring.

Installation and Operational Safety

Safety related to high voltage, moving parts, filter placement, and overheating.

Venting and Chimney Safety

Prohibitions and inspection requirements for furnace venting and chimney liners.

Cautionary Notes

Handling and Installation Cautions

Operational and Service Cautions

Equipment Protection and Venting Procedures

Furnace Installation Guidelines

Safety Practices and Precautions

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

General Installation Guidelines

Locations and Clearances

Gas Piping Installation

Combustion and Input Check

Gas Valve Adjustment

General Venting

Vent Piping Requirements

Venting into Masonry Chimney

Internal Masonry Chimneys

External Masonry Chimney Venting

Gas Vent Termination Requirements

Air for Combustion and Ventilation

Electrical Connections

Field Wiring Diagrams

General Start-up and Adjustment

Preliminary Inspections

Checks before start-up: sealing, filters, venting, panel installation.

Lighting Instructions

Furnace Shutdown Procedure

Control and Safety Switch Adjustment

Procedure for checking and adjusting control and safety switches.

Integrated Furnace Control Menu

S8B1/S8X1 Single Stage OD Control Menu

Control system menu flow for S8B1/S8X1 single stage outdoor units.

System Setup and Fault Clearing

Procedures for system setup, changing defaults, and clearing last 6 faults.

Fan Speed Selection (Cooling/Heating)

How to select cooling/HP and gas heating fan speeds using the control menu.

S8X1 Two Stage OD Control Menu

Control system menu flow for S8X1 two stage outdoor units.

Cooling/HP Fan Speed Selection (2-1 ODU)

Procedure for selecting cooling/HP fan speeds for 2-1 ODU.

Gas Heating Fan Speed Selection

Procedure for selecting gas heating fan speeds.

S8X2 Single Stage OD Control Menu

Control system menu flow for S8X2 single stage outdoor units.

System Setup and Fault Clearing (S8X2)

Setup and fault clearing procedures for S8X2 single stage OD units.

Fan Speed Selection (S8X2)

Selecting cooling/HP and gas heating fan speeds for S8X2 units.

S8X2 Two Stage OD Control Menu

Control system menu flow for S8X2 two stage outdoor units.

Fan Speed Selection (S8X2 Two Stage)

Selecting cooling/HP and gas heating fan speeds for S8X2 two stage units.

Sequence of Operation

Run Test Mode Operation

Procedure for entering and executing the Run Test Mode.

1st Stage Gas Heating Sequence

Step-by-step sequence for 1st stage gas heating operation.

2nd Stage Gas Heating Sequence (S8X2)

Step-by-step sequence for 2nd stage gas heating operation on S8X2 models.

Sequence of Operations (Heating)

Detailed sequences for 1st and 2nd stage gas heating, including safety checks.

Single Stage Cooling Sequence

Step-by-step sequence for single stage cooling operation.

Two Stage Cooling Sequence

Step-by-step sequence for two stage cooling operation.

Single Stage Heat Pump Sequence

Two Stage Heat Pump Sequence

Setting Airflow

9-Tap Motor Airflow Adjustment

Procedure for setting airflow using the 9-tap motor and external static pressure.

Integrated Furnace Control Display Codes

Control Menu Options and Descriptions

Alarm Error Codes and Explanations

Table of alarm error codes and their corresponding explanations.

Fault Code Recovery

Viewing and Clearing Fault Codes

Procedure to view the last 6 faults and clear them.

Resetting Factory Defaults