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Allied 95G1UH - User Manual

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506724-01 Page 1 of 57Issue 1108
This manual must be left with the homeowner for future reference.
INSTALLATION INSTRUCTIONS
A95UH, A93UH, 95G1UH & 92G1UH
Warm Air Gas Furnace
Upflow/Horizontal Left and Right Air Discharge
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
Unit Dimensions ............................................................ 2
A95/A93/95G1/92G1UH Parts Arrangement ................ 3
A95/A93/95G1/92G1UH 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 .......................................................................... 13
Duct System ................................................................ 13
Pipe and Fittings Specifications .................................. 13
Joint Cementing Procedure ........................................ 15
Venting Practices ........................................................ 16
TABLE OF CONTENTS
Vent Piping Guidelines ................................................ 17
Gas Piping .................................................................. 35
Electrical ..................................................................... 38
Unit Start Up ................................................................ 41
Gas Pressure Adjustment ........................................... 43
High Altitude Information ............................................. 43
Other Unit Adjustments ............................................... 46
Blower Motor Performance ......................................... 47
Service ........................................................................ 51
Planned Service .......................................................... 53
Diagnostic Codes ........................................................ 53
Repair Parts List ......................................................... 54
Start Up Checklist ....................................................... 55
(P) 506724-01
*P506724-01*
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Summary

Unit Dimensions

Expanded View

Safety Information

Shipping and Packing List

Building Codes

Installation Locations

Installed in Combination with Cooling Coil

Guidelines for installing the furnace with a cooling coil.

Use of Furnace as Construction Heater

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

General Installation Guidelines

Combustion, Dilution & Ventilation Air

Requirements for providing adequate air for combustion and ventilation.

Setting Equipment

Upflow Applications

Instructions for setting the furnace in the upflow position.

Horizontal Applications

Instructions for setting the furnace in the horizontal position.

Installation Clearances

Return Air Guidelines

Procedures for connecting the return air system to the furnace.

Duct System

Supply Air Plenum

Requirements for the supply air plenum, including access panel.

Return Air Plenum

Guidelines for the return air plenum, including negative pressure considerations.

Filters

Information on required filters and recommended sizes.

Pipe & Fittings Specifications

Standards for piping materials, primer, and solvent cement.

Venting Practices

Piping Suspension Guidelines

Guidelines for supporting vent pipes to prevent vibration transmission.

Wall Thickness Guidelines

Specifications for wall penetrations for vent pipes.

Vent Piping Guidelines

Exhaust Pipe

Guidelines for exhaust pipe sizing, routing, and termination.

Condensate Piping

Condensate Trap and Plug Locations

Locations for condensate trap and plug, and priming procedure.

Gas Piping

Leak Check

Procedure for checking gas piping connections for leaks.

Electrical System

Interior Make-Up Box Installation

Instructions for installing the electrical makeup box and wiring.

Accessory Terminals

Description of accessory terminals on the control board.

Integrated Control and Start-Up

Integrated Control

Explanation of the furnace's integrated control system.

Unit Start-Up

Steps for safely starting up the furnace and initial operation.

Gas Valve and Sequence Operations

Gas Valve Operation

Instructions for operating the gas valve and safety procedures.

Heating Sequence Of Operation

Step-by-step process of the furnace's heating cycle.

Gas Pressure Adjustment

Manifold Pressure Measurement

Procedure for measuring and adjusting manifold gas pressure.

High Altitude Information

Information on pressure switch changes and orifice conversions for high altitudes.

Other Unit Adjustments

Blower Speeds

Instructions for changing the blower motor speeds for desired airflow.

Electronic Ignition

Explanation of the electronic ignition system and its features.

Service and Maintenance

Cleaning Heat Exchanger

Procedures for cleaning the heat exchanger assembly.

Cleaning the Burner Assembly

Steps for cleaning the furnace burner assembly.

Planned Service and Diagnostics

Planned Service

Items to check during annual furnace inspection.

Diagnostic Codes

Table of LED fault codes and their descriptions for troubleshooting.

Repair Parts List

Cabinet Parts

List of cabinet-related replacement parts.

Heating Parts

List of replacement parts for the heating components.

Unit Setup and Operation

Unit Set Up Checklist

Checklist for initial furnace setup and connections.

Unit Operation Checklist

Checklist for verifying performance in heating and cooling modes.

Massachusetts State Requirements

Carbon Monoxide Detector Installation

Requirements for installing CO detectors as per Massachusetts code.

Vent Terminal Signage Requirements

Requirement for signage near the horizontal vent terminal.

Summary

Unit Dimensions

Expanded View

Safety Information

Shipping and Packing List

Building Codes

Installation Locations

Installed in Combination with Cooling Coil

Guidelines for installing the furnace with a cooling coil.

Use of Furnace as Construction Heater

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

General Installation Guidelines

Combustion, Dilution & Ventilation Air

Requirements for providing adequate air for combustion and ventilation.

Setting Equipment

Upflow Applications

Instructions for setting the furnace in the upflow position.

Horizontal Applications

Instructions for setting the furnace in the horizontal position.

Installation Clearances

Return Air Guidelines

Procedures for connecting the return air system to the furnace.

Duct System

Supply Air Plenum

Requirements for the supply air plenum, including access panel.

Return Air Plenum

Guidelines for the return air plenum, including negative pressure considerations.

Filters

Information on required filters and recommended sizes.

Pipe & Fittings Specifications

Standards for piping materials, primer, and solvent cement.

Venting Practices

Piping Suspension Guidelines

Guidelines for supporting vent pipes to prevent vibration transmission.

Wall Thickness Guidelines

Specifications for wall penetrations for vent pipes.

Vent Piping Guidelines

Exhaust Pipe

Guidelines for exhaust pipe sizing, routing, and termination.

Condensate Piping

Condensate Trap and Plug Locations

Locations for condensate trap and plug, and priming procedure.

Gas Piping

Leak Check

Procedure for checking gas piping connections for leaks.

Electrical System

Interior Make-Up Box Installation

Instructions for installing the electrical makeup box and wiring.

Accessory Terminals

Description of accessory terminals on the control board.

Integrated Control and Start-Up

Integrated Control

Explanation of the furnace's integrated control system.

Unit Start-Up

Steps for safely starting up the furnace and initial operation.

Gas Valve and Sequence Operations

Gas Valve Operation

Instructions for operating the gas valve and safety procedures.

Heating Sequence Of Operation

Step-by-step process of the furnace's heating cycle.

Gas Pressure Adjustment

Manifold Pressure Measurement

Procedure for measuring and adjusting manifold gas pressure.

High Altitude Information

Information on pressure switch changes and orifice conversions for high altitudes.

Other Unit Adjustments

Blower Speeds

Instructions for changing the blower motor speeds for desired airflow.

Electronic Ignition

Explanation of the electronic ignition system and its features.

Service and Maintenance

Cleaning Heat Exchanger

Procedures for cleaning the heat exchanger assembly.

Cleaning the Burner Assembly

Steps for cleaning the furnace burner assembly.

Planned Service and Diagnostics

Planned Service

Items to check during annual furnace inspection.

Diagnostic Codes

Table of LED fault codes and their descriptions for troubleshooting.

Repair Parts List

Cabinet Parts

List of cabinet-related replacement parts.

Heating Parts

List of replacement parts for the heating components.

Unit Setup and Operation

Unit Set Up Checklist

Checklist for initial furnace setup and connections.

Unit Operation Checklist

Checklist for verifying performance in heating and cooling modes.

Massachusetts State Requirements

Carbon Monoxide Detector Installation

Requirements for installing CO detectors as per Massachusetts code.

Vent Terminal Signage Requirements

Requirement for signage near the horizontal vent terminal.

Allied 95G1UH Specifications

General IconGeneral
BrandAllied
Model95G1UH
CategoryFurnace
LanguageEnglish

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