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Allied A93UH1D - User Manual

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507270-03 Page 1 of 60Issue 1621
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
Manufactured By
Allied Air Enterprises LLC
A Lennox International, Inc. Company
215 Metropolitan Drive
West Columbia, SC 29170
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
This manual must be left with the homeowner for future reference.
A95UH1D,A93UH1D,95G1UH-P & 92G1UH-P
INSTALLATION INSTRUCTIONS
Warm Air Gas Furnace
Upow/Horizontal Left and Right Air Discharge
(P) 507270-03
*P507270-03*
TABLE OF CONTENTS
Unit Dimensions ................................................................ 2
Parts Arrangement............................................................. 3
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 & Fittings Specications .......................................... 13
Joint Cementing Procedure ............................................. 15
Venting Practices ............................................................. 16
Vent Piping Guidelines .................................................... 18
Gas Piping ....................................................................... 38
Electrical .......................................................................... 41
Unit Start-Up .................................................................... 44
Gas Pressure Adjustment ................................................ 46
High Altitude Information ................................................. 46
Other Unit Adjustments.................................................... 49
Blower Motor Performance .............................................. 50
Service .......................................................................... 54
Planned Service .............................................................. 56
Diagnostic Codes ............................................................ 56
Repair Parts List .............................................................. 57
Start-Up & Performance Check List ................................ 58
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Summary

Installation Locations

General Installation Guidelines

Combustion, Dilution & Ventilation Air

Explains the critical requirements for providing adequate air for combustion and ventilation.

Confined Space Air Requirements

Installation Clearances

Venting Practices

Vent Piping Guidelines

Intake and exhaust pipe sizing

Guidance on determining the correct pipe diameter and length for intake and exhaust.

General Guidelines for Vent Terminations

Vent Termination Clearances for Non-Direct Vent Installations

Vent Termination Clearances for Direct Vent Installations

Details of Intake and Exhaust Piping Terminations for Direct Vent Installations

Field Supplied Wall Termination

Condensate Piping

Trap; Drain Assembly Using 1;2 PVC or 3;4 PVC

Gas Piping

Leak Check

Instructions for performing a leak check on the gas piping system using approved methods.

Electrical

Electrostatic Discharge (ESD) Precautions and Procedures

Procedures to prevent electrostatic discharge damage to electronic components.

Unit Start-Up

Before Lighting

Critical safety checks to perform before lighting the furnace to prevent hazards.

Placing the furnace into operation

Description of the automatic ignition sequence and burner operation.

Priming Condensate Trap

Gas Valve Operation

Instructions for operating the gas valve safely and correctly.

Gas Pressure Adjustment

Proper Combustion

Guidelines for analyzing combustion gases (CO2, CO) to ensure efficient and safe burning.

High Altitude Information

Information and requirements for installing the furnace at high altitudes.

Testing for Proper Venting and Sufficient Combustion Air for Non-Direct Vent Applications

Other Unit Adjustments

Temperature Rise

How to adjust blower speed to maintain the correct temperature rise across the heat exchanger.

Service

Start-Up & Performance Check List

Unit Operation

Summary

Installation Locations

General Installation Guidelines

Combustion, Dilution & Ventilation Air

Explains the critical requirements for providing adequate air for combustion and ventilation.

Confined Space Air Requirements

Installation Clearances

Venting Practices

Vent Piping Guidelines

Intake and exhaust pipe sizing

Guidance on determining the correct pipe diameter and length for intake and exhaust.

General Guidelines for Vent Terminations

Vent Termination Clearances for Non-Direct Vent Installations

Vent Termination Clearances for Direct Vent Installations

Details of Intake and Exhaust Piping Terminations for Direct Vent Installations

Field Supplied Wall Termination

Condensate Piping

Trap; Drain Assembly Using 1;2 PVC or 3;4 PVC

Gas Piping

Leak Check

Instructions for performing a leak check on the gas piping system using approved methods.

Electrical

Electrostatic Discharge (ESD) Precautions and Procedures

Procedures to prevent electrostatic discharge damage to electronic components.

Unit Start-Up

Before Lighting

Critical safety checks to perform before lighting the furnace to prevent hazards.

Placing the furnace into operation

Description of the automatic ignition sequence and burner operation.

Priming Condensate Trap

Gas Valve Operation

Instructions for operating the gas valve safely and correctly.

Gas Pressure Adjustment

Proper Combustion

Guidelines for analyzing combustion gases (CO2, CO) to ensure efficient and safe burning.

High Altitude Information

Information and requirements for installing the furnace at high altitudes.

Testing for Proper Venting and Sufficient Combustion Air for Non-Direct Vent Applications

Other Unit Adjustments

Temperature Rise

How to adjust blower speed to maintain the correct temperature rise across the heat exchanger.

Service

Start-Up & Performance Check List

Unit Operation

Allied A93UH1D Specifications

General IconGeneral
BrandAllied
ModelA93UH1D
CategoryFurnace
LanguageEnglish

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