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Allied Air 80G1UH User Manual

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506526-01 Page 1 of 39Issue 1031
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, Inc.
A Lennox International, Inc. Company
215 Metropolitan Drive
West Columbia, SC 29170
This manual must be left with the homeowner for future reference.
INSTALLATION INSTRUCTIONS
A80UH & 80G1UH
Warm Air Gas Furnace
Upflow / Horizontal Left and Right Air Discharge
*506526-01*
TABLE OF CONTENTS
Unit Dimensions ............................................................ 2
A80UH & 80G1UH Parts Arrangement ......................... 3
A80UH & 80G1UH Gas Furnace .................................. 4
Shipping and Packing List ............................................ 4
Safety Information ......................................................... 4
Use of Furnace as a Construction Heater .................... 5
General ......................................................................... 6
Combustion, Dilution, Ventilation Air ............................. 6
Setting Equipment ........................................................ 9
Filters .......................................................................... 12
Duct System ................................................................ 12
Venting ........................................................................ 13
Gas Piping .................................................................. 23
Electrical ..................................................................... 25
Unit Start-Up ............................................................... 29
Heating Sequence of Operation ................................. 30
Gas Pressure Adjustment ........................................... 31
High Altitude ................................................................ 31
Other Unit Adjustments ............................................... 31
Service ........................................................................ 33
Planned Service .......................................................... 36
Integrated Control Diagnostic Codes .......................... 36
Repair Parts List ......................................................... 37
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Allied Air 80G1UH Specifications

General IconGeneral
BrandAllied Air
Model80G1UH
CategoryFurnace
LanguageEnglish

Summary

Unit Dimensions

Furnace Dimensions and Specifications

Detailed measurements and diagrams for furnace dimensions, including notes on air volume requirements and filter kits.

Furnace Components

Expanded View of Furnace Parts

Exploded view illustrating furnace internal and external parts for installation and service.

Safety, Certifications & Clearances

Shipping and Packing List

List of items included with the furnace for unpacking and verification upon delivery.

General Safety Information

Critical safety warnings including explosion hazards, installation precautions, and material handling.

Certifications and Clearances

Standards compliance, installation clearances to combustible materials, and location requirements.

Installation Considerations

Temperature Rise and Cooling Coils

Guidelines for setting temperature rise and integrating the furnace with cooling units.

Construction Heater Use

Conditions and recommendations for using the furnace as a temporary construction heater.

General Installation Guidelines

Combustion, Dilution, and Ventilation Air

Requirements for providing adequate air for safe and efficient furnace operation.

Fiberglass Wool Warning

Caution regarding potential health hazards from disturbing fiberglass insulation during installation or service.

Air Requirements for Confined Spaces

Unconfined vs. Confined Space Air Supply

Differentiates air supply needs based on space volume and configuration.

Air Intake Methods

Details on supplying combustion air from inside or outside the confined space.

Setting Equipment and Clearances

Furnace Placement and Leveling

Instructions for positioning the furnace and ensuring it is level for proper operation.

Upflow Application Clearances

Specifies minimum clearances to combustible materials for upflow installations.

Return Air Connections

Upflow Return Air Options

Describes methods for connecting return air in upflow configurations, including side and bottom returns.

Horizontal Installation and Return Air

Removing the Bottom Panel

Procedure for removing the bottom panel for installation access.

Horizontal Application Setup

Guidelines for installing the furnace in horizontal orientations, including suspension and platform methods.

Horizontal Return Air

How to connect return air when the furnace is installed horizontally.

Filters and Duct Systems

Filter Requirements

Instructions on filter selection, installation, and maintenance for optimal performance.

Duct System Design

Standards for sizing and installing supply and return air duct systems for efficient airflow.

Venting Procedures

Combustion Air Inducer Configuration

Adjusting the combustion air inducer and flue transition for different vent discharge positions.

Venting with Masonry Chimneys

Masonry Chimney Requirements

Guidelines for using lined masonry chimneys for venting, including material specifications.

General Venting Requirements

Common Venting Guidelines

Rules for combining furnace vents with other appliances or using existing chimney systems.

Vent Connector Capacity Tables

Single Appliance Venting Capacity

Tables detailing vent connector capacity for single appliance installations.

Venting Capacity Tables

Multi-Appliance Venting Capacity

Tables for vent connector and common vent capacity when serving multiple appliances.

Common Venting System Management

Removing Furnace from Common Vent

Procedures for safely removing a furnace from a shared venting system and testing remaining appliances.

Gas Piping Installation

Gas Supply and Piping Considerations

Guidance on connecting the gas supply, pipe sizing, and material requirements.

Leak Checks and Electrical Safety

Leak Detection Procedures

Steps for checking gas piping connections for leaks using appropriate solutions.

Electrostatic Discharge (ESD) Precautions

Measures to protect electronic components from static discharge during installation and service.

Electrical Connections and Thermostat

Thermostat Wiring and Settings

Instructions for connecting and configuring the room thermostat and its designations.

Accessory Terminals and Generator Use

Information on connecting accessories and requirements for generator power supply.

Wiring Diagrams

Furnace Wiring Diagram

Comprehensive diagram illustrating all electrical connections within the furnace unit.

Control Systems

Typical Field Wiring Diagram

Diagram showing external wiring connections from thermostat and other components to the furnace.

Integrated Control Operation

Details on the furnace's integrated control system, terminal designations, and ignition sequences.

Unit Start-Up Procedure

Initial Lighting and Gas Valve Operation

Step-by-step instructions for safely starting the furnace and operating the gas valve.

Troubleshooting Unit Start-Up Failures

Checklist to diagnose and resolve common issues preventing the furnace from starting or operating.

Performance Checks and Adjustments

Heating Sequence of Operation

Description of the automatic sequence the furnace follows when calling for heat.

Gas Pressure and Combustion Analysis

Procedures for measuring gas pressure and analyzing combustion for optimal performance.

High Altitude and Fan Control

High Altitude Pressure Adjustments

Guidance on adjusting manifold pressure for proper combustion at higher altitudes.

Other Unit Adjustments

Information on adjusting temperature rise, fan off delay, and other operational settings.

Electrical Checks and Blower Speed Adjustment

Thermostat Anticipation and Electrical Checks

Setting the heat anticipator and performing electrical checks for voltage and amp draw.

Changing Blower Speeds

Instructions for modifying the blower motor speed settings to optimize airflow.

Routine Service and Inspection

Blower and Filter Maintenance

Recommendations for cleaning the blower and inspecting/replacing air filters for optimal function.

Flue, Chimney, and Electrical Checks

Procedures for inspecting the venting system and verifying electrical connections and voltage.

Heat Exchanger and Burner Cleaning

Component Removal for Cleaning

Steps for safely removing internal components like the heat exchanger and burners for cleaning.

Planned Service and Failure Codes

Annual Inspection Checklist

Items to be checked during annual maintenance for safe and efficient furnace operation.

Understanding Failure Codes

Explanation of LED status indicators and corresponding fault descriptions for troubleshooting.

Repair Parts List

Ordering Furnace Replacement Parts

Information on how to order replacement parts, including model number requirements.

Start-Up and Performance Checklist

Unit Set Up and Gas Supply Checks

Checklist for verifying gas supply, piping, and initial setup of the furnace unit.

Duct System and Voltage Checks

Checklist items for ensuring the duct system is sealed and electrical connections are secure.

Unit Operation and Performance Monitoring

Heating Mode Performance Checks

Parameters to monitor during heating mode, including gas pressure, CO2, and temperatures.

Cooling Mode and Thermostat Operation

Checks for cooling mode performance, drain line, and thermostat settings verification.

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