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Allied A80UH1EX Series - User Manual

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507651-01 Issue 1907 Page 1 of 32
INSTALLATION INSTRUCTIONS
A80UH1EX & 80G1UHEX
Warm Air Gas Furnace
Upow / Horizontal Left and Right Air Discharge
This manual must be left with the homeowner for future reference.
This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in
manuals, be alert to the potential for personal injury or death.
As with any mechanical equipment, personal injury can
result from contact with sharp sheet metal edges. Be
careful when you handle this equipment.
CAUTION
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional installer (or
equivalent), service agency or the gas supplier.
WARNING
Manufactured By
Allied Air Enterprises LLC
A Lennox International, Inc. Company
215 Metropolitan Drive
West Columbia, SC 29170
(P) 507651-01
*P507651-01*
Table of Contents
Unit Dimensions ..........................................................2
A80UH1EX & 80G1UHEX Gas Furnace .....................3
Shipping & Packing List ...............................................3
Safety Information .......................................................3
General ........................................................................5
Combustion, Dilution & Ventilation Air .........................5
Setting Equipment .......................................................8
Filters .........................................................................11
Duct System ..............................................................11
Venting.......................................................................12
Gas Piping .................................................................18
Electrical ....................................................................20
Unit Start-Up ..............................................................25
Heating Sequence of Operation ...............................26
Gas Pressure Adjustment ..........................................26
Other Unit Adjustments..............................................28
Blower Performance ..................................................29
Service.......................................................................31
Repair Parts List ........................................................32
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Summary

Unit Dimensions

Shipping and Packing Information

Safety and Installation Guidelines

Clearances

Specifies required distances from combustible materials.

Installed Locations

Guidelines for furnace placement in various building areas.

Temperature Rise

Instructions for adjusting blower speed to meet temperature rise requirements.

Installation Configurations

Combination with Cooling Coil

Methods for integrating the furnace with cooling units.

Use as Construction Heater

Conditions for using the furnace as a temporary construction heater.

Combustion, Dilution & Ventilation Air

Unconfined Space Air Provision

Guidelines for air provision in unconfined installation spaces.

Confined Space Air Provision

Guidelines for air provision in confined installation spaces.

Confined Space Air Intake Methods

Specific methods for supplying air in confined areas.

Equipment Setting and Positioning

Setting Equipment

Instructions for selecting location and positioning the furnace.

Return Air Configuration

Upflow Applications

Methods for connecting return air in upflow furnace installations.

Horizontal Installation Procedures

Return Air - Horizontal

Requirements for return air connection in horizontal setups.

Air Filtration Requirements

Duct System Installation

Venting System Installation

Masonry Chimney Venting

Specific requirements for venting through masonry chimneys.

General Venting Requirements

Gas Piping and Supply

Gas Supply Connection

Instructions for connecting the gas supply line to the furnace.

Leak Detection and Testing

Procedures for checking gas piping for leaks.

Electrical Connections and Safety

ESD Precautions and Wiring

Guidelines for handling electronic components and electrical wiring.

Unit Start-Up Procedures

Gas Valve Operation

Step-by-step guide for operating the gas valve.

Failure to Operate

Troubleshooting steps for common operational issues.

Heating Sequence of Operation

Describes the chronological steps during heating activation.

Gas Pressure and Combustion Analysis

Manifold and Supply Pressure Checks

Procedures for measuring gas supply and manifold pressures.

Proper Combustion Analysis

Methodology for testing combustion efficiency and safety.

Component Adjustments and Settings

Control Switches, Limits, and Fan Settings

Adjusting primary limit, thermal switch, pressure switch, and fan control.

Motor Operation and Blower Speeds

Details on constant torque motor, blower speed selection, and voltage requirements.

Electronic Ignition System

Features of the integrated control's ignition and Watchguard functions.

Blower Performance Data

Service and Maintenance

Annual Furnace Maintenance

Recommended checks and procedures for yearly furnace upkeep.

Repair Parts Information

Summary

Unit Dimensions

Shipping and Packing Information

Safety and Installation Guidelines

Clearances

Specifies required distances from combustible materials.

Installed Locations

Guidelines for furnace placement in various building areas.

Temperature Rise

Instructions for adjusting blower speed to meet temperature rise requirements.

Installation Configurations

Combination with Cooling Coil

Methods for integrating the furnace with cooling units.

Use as Construction Heater

Conditions for using the furnace as a temporary construction heater.

Combustion, Dilution & Ventilation Air

Unconfined Space Air Provision

Guidelines for air provision in unconfined installation spaces.

Confined Space Air Provision

Guidelines for air provision in confined installation spaces.

Confined Space Air Intake Methods

Specific methods for supplying air in confined areas.

Equipment Setting and Positioning

Setting Equipment

Instructions for selecting location and positioning the furnace.

Return Air Configuration

Upflow Applications

Methods for connecting return air in upflow furnace installations.

Horizontal Installation Procedures

Return Air - Horizontal

Requirements for return air connection in horizontal setups.

Air Filtration Requirements

Duct System Installation

Venting System Installation

Masonry Chimney Venting

Specific requirements for venting through masonry chimneys.

General Venting Requirements

Gas Piping and Supply

Gas Supply Connection

Instructions for connecting the gas supply line to the furnace.

Leak Detection and Testing

Procedures for checking gas piping for leaks.

Electrical Connections and Safety

ESD Precautions and Wiring

Guidelines for handling electronic components and electrical wiring.

Unit Start-Up Procedures

Gas Valve Operation

Step-by-step guide for operating the gas valve.

Failure to Operate

Troubleshooting steps for common operational issues.

Heating Sequence of Operation

Describes the chronological steps during heating activation.

Gas Pressure and Combustion Analysis

Manifold and Supply Pressure Checks

Procedures for measuring gas supply and manifold pressures.

Proper Combustion Analysis

Methodology for testing combustion efficiency and safety.

Component Adjustments and Settings

Control Switches, Limits, and Fan Settings

Adjusting primary limit, thermal switch, pressure switch, and fan control.

Motor Operation and Blower Speeds

Details on constant torque motor, blower speed selection, and voltage requirements.

Electronic Ignition System

Features of the integrated control's ignition and Watchguard functions.

Blower Performance Data

Service and Maintenance

Annual Furnace Maintenance

Recommended checks and procedures for yearly furnace upkeep.

Repair Parts Information

Allied A80UH1EX Series Specifications

General IconGeneral
Fuel TypeNatural Gas
AFUE80%
StagesSingle Stage
Blower MotorPSC
IgnitionHot Surface Ignition
Heat Exchanger MaterialAluminized Steel
Cabinet TypeUpflow/Horizontal
Blower Motor TypePSC

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