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Allied A95UH1E - User Manual

Allied A95UH1E
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507276-03 Page 1 of 59Issue 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.
Manufactured By
Allied Air Enterprises LLC
A Lennox International, Inc. Company
215 Metropolitan Drive
West Columbia, SC 29170
(P) 507276-03
This manual must be left with the homeowner for future reference.
INSTALLATION INSTRUCTIONS
A95UH1E & 95G1UHE
Warm Air Gas Furnace
Upow/Horizontal Left and Right Air Discharge
TABLE OF CONTENTS
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
*P507276-03*
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 ........................................................... 10
Filters .......................................................................... 14
Duct System .................................................................... 14
Pipe & Fittings Specications .......................................... 14
Joint Cementing Procedure ............................................. 16
Venting Practices ............................................................. 17
Vent Piping Guidelines .................................................... 18
Gas Piping ....................................................................... 39
Electrical .......................................................................... 42
Unit Start-Up .................................................................... 45
Gas Pressure Adjustment ................................................ 47
High Altitude Information ................................................. 47
Other Unit Adjustments.................................................... 50
Blower Motor Performance .............................................. 51
Service .......................................................................... 53
Planned Service .............................................................. 55
Diagnostic Codes ............................................................ 55
Repair Parts List .............................................................. 56
Start-Up & Performance Check List ................................ 57

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Summary

Shipping and Packing List

Safety Information

Crucial safety warnings for installation and operation.

Building Codes

Conformance requirements for installation according to local codes.

Installation Locations

Installed in Combination with a Cooling Coil

Guidelines for integrating the furnace with a cooling coil.

Use of Furnace as a Construction Heater

Conditions for using the furnace for temporary construction heating.

Combustion, Dilution & Ventilation Air

Unconfined Space

Guidelines for air supply in unconfined installation areas.

Confined Space

Guidelines for air supply in confined installation areas.

Setting Equipment

Upflow Applications

Instructions for setting up the unit in an upflow configuration.

Horizontal Applications

Instructions for setting up the unit in a horizontal configuration.

Installation Clearances

Return Air Guidlines

Procedures for connecting the return air system.

Filters

Duct System

Guidelines for sizing and installing supply and return air ducts.

Pipe & Fittings Specifications

Standards for piping and fittings used in the installation.

PIPING AND FITTINGS SPECIFICATIONS

PRIMER & SOLVENT CEMENT

Specifications for primer and solvent cement usage.

CANADA PIPE & FITTING & SOLVENT CEMENT

Canadian standards for pipe, fittings, and solvent cement.

Venting Practices

Piping Suspension Guidelines

Recommendations for supporting vent piping.

Wall Thickness Guidelines

Guidelines for wall thickness related to vent penetrations.

Vent Piping Guidelines

MINIMUM VENT PIPE LENGTHS

Minimum vent pipe length requirements based on model and configuration.

Maximum Allowable Intake or Exhaust Vent Length

Maximum Allowable Exhaust Vent Pipe Length (in ft.) Without Insulation

Table for maximum uninsulated exhaust vent pipe lengths.

TYPICAL EXHAUST PIPE CONNECTIONS IN UPFLOW DIRECT OR NON-DIRECT VENT APPLICATIONS

TYPICAL EXHAUST PIPE CONNECTIONS IN HORIZONTAL DIRECT OR NON-DIRECT VENT APPLICATIONS

Diagrams showing typical exhaust pipe connections for horizontal applications.

TYPICAL AIR INTAKE PIPE CONNECTIONS IN UPFLOW DIRECT VENT APPLICATIONS

TYPICAL AIR INTAKE PIPE CONNECTIONS IN HORIZONTAL DIRECT VENT APPLICATIONS

Diagrams showing typical air intake pipe connections for horizontal applications.

Intake Piping

General Guidelines for Vent Terminations

VENT TERMINATION CLEARANCES FOR NON-DIRECT VENT INSTALLATIONS IN THE USA AND CANADA

VENT TERMINATION CLEARANCES FOR DIRECT VENT INSTALLATIONS IN THE USA AND CANADA

Required clearances for vent terminations of direct vent installations.

Details of Intake and Exhaust Piping Terminations for Direct Vent Installations

EXHAUST PIPE TERMINATION SIZE REDUCTION

Information on reducing exhaust pipe size for termination.

Exiting Exhaust and Intake Vent (no common pressure zone)

Field Supplied Wall Termination

Instructions for field-supplied wall vent terminations.

DIRECT VENT CONCENTRIC ROOFTOP TERMINATION

Direct Vent Application Using Existing Chimney

Procedures for using an existing chimney for direct vent applications.

Details of Exhaust Piping Terminations for Non-Direct Vent Applications

NON-DIRECT VENT ROOF TERMINATION KIT

Information on non-direct vent roof termination kits.

Non-Direct Vent Field Supplied Wall Termination Extended

Instructions for extended non-direct vent field supplied wall terminations.

NON-DIRECT VENT FIELD SUPPLIED WALL TERMINATION

Instructions for non-direct vent field supplied wall terminations.

Condensate Piping

CONDENSATE TRAP AND PLUG LOCATIONS

Locations for condensate traps and plugs.

Unit with Cooling Coil

Specific considerations for units with a cooling coil.

Evaporator Coil Using a Common Drain

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

Optional Condensate Drain Connection

Options for connecting the condensate drain.

Optional Drain Piping From Trap

Options for drain piping originating from the trap.

Gas Piping

Leak Check

Procedures for checking gas piping for leaks.

Horizontal Applications Possible Gas Piping Configurations

Left Side Piping (Standard)

Standard gas piping configuration for left side entry.

Right Side Piping (Alternate)

Alternate gas piping configuration for right side entry.

GAS PIPE CAPACITY - FT ³;HR (kL;HR)

Electrical

ELECTROSTATIC DISCHARGE (ESD) Precautions and Procedures

Precautions to prevent damage from electrostatic discharge.

INTERIOR MAKE-UP BOX INSTALLATION

Installation of the interior make-up electrical box.

Accessory Terminals

Details on accessory terminals for connecting external devices.

TYPICAL WIRING DIAGRAM

Unit Start-Up

INTEGRATED CONTROL (Automatic Hot Surface Ignition System)

Information on the integrated control system.

Gas Valve Operation

Turning Off Gas to Unit

Steps to safely turn off the gas supply to the unit.

Failure To Operate

Troubleshooting steps for when the unit fails to operate.

Heating Sequence Of Operation

Description of the furnace's heating cycle sequence.

Gas Pressure Adjustment

Gas Flow (Approximate)

Approximate gas flow rates based on meter clocking.

Supply Pressure Measurement

How to measure and check supply gas pressure.

Manifold Pressure Measurement

How to measure and check manifold gas pressure.

Proper Combustion

Guidelines for achieving proper combustion and CO2 levels.

High Altitude Information

Burner Orifice Conversion Kits at Varying Altitudes

Information on burner orifice kits for different altitudes.

A95 and 95 G1 Pressure Switch Requirements at Varying Altitudes

Pressure switch requirements for various altitudes.

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

Other Unit Adjustments

Temperature Rise

How to check and adjust the temperature rise.

Fan Control

Adjusting fan ON and OFF delays for comfort.

Blower Speeds

How to change the blower motor speed settings.

Blower Data

Service

Electrical

Checks for electrical connections, voltage, and amp draw.

Winterizing and Condensate Trap Care

Procedures for winterizing and maintaining the condensate trap.

Cleaning Heat Exchanger

Steps for cleaning the furnace heat exchanger.

Cleaning the Burner Assembly

Planned Service

Diagnostic Codes

Table of diagnostic codes and their meanings.

Repair Parts List

Start-Up & Performance Check List

UNIT SET UP

Checklist items for the initial unit setup.

GAS SUPPLY

Checks related to the gas supply connection and pressure.

DUCT SYSTEM

Checks for proper duct system installation and sealing.

UNIT OPERATION

HEATING MODE

Checks and parameters for the heating mode of operation.

COOLING MODE

Checks and parameters for the cooling mode of operation.

REQUIREMENTS for COMMONWEALTH of MASSACHUSETTS

Modifications to NFPA-54, Chapter 10 -

Modifications to NFPA-54 regarding installation requirements.

MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED.

Manufacturer requirements for provided gas equipment venting systems.

MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED.

Manufacturer requirements for gas equipment when venting system is not provided.

Summary

Shipping and Packing List

Safety Information

Crucial safety warnings for installation and operation.

Building Codes

Conformance requirements for installation according to local codes.

Installation Locations

Installed in Combination with a Cooling Coil

Guidelines for integrating the furnace with a cooling coil.

Use of Furnace as a Construction Heater

Conditions for using the furnace for temporary construction heating.

Combustion, Dilution & Ventilation Air

Unconfined Space

Guidelines for air supply in unconfined installation areas.

Confined Space

Guidelines for air supply in confined installation areas.

Setting Equipment

Upflow Applications

Instructions for setting up the unit in an upflow configuration.

Horizontal Applications

Instructions for setting up the unit in a horizontal configuration.

Installation Clearances

Return Air Guidlines

Procedures for connecting the return air system.

Filters

Duct System

Guidelines for sizing and installing supply and return air ducts.

Pipe & Fittings Specifications

Standards for piping and fittings used in the installation.

PIPING AND FITTINGS SPECIFICATIONS

PRIMER & SOLVENT CEMENT

Specifications for primer and solvent cement usage.

CANADA PIPE & FITTING & SOLVENT CEMENT

Canadian standards for pipe, fittings, and solvent cement.

Venting Practices

Piping Suspension Guidelines

Recommendations for supporting vent piping.

Wall Thickness Guidelines

Guidelines for wall thickness related to vent penetrations.

Vent Piping Guidelines

MINIMUM VENT PIPE LENGTHS

Minimum vent pipe length requirements based on model and configuration.

Maximum Allowable Intake or Exhaust Vent Length

Maximum Allowable Exhaust Vent Pipe Length (in ft.) Without Insulation

Table for maximum uninsulated exhaust vent pipe lengths.

TYPICAL EXHAUST PIPE CONNECTIONS IN UPFLOW DIRECT OR NON-DIRECT VENT APPLICATIONS

TYPICAL EXHAUST PIPE CONNECTIONS IN HORIZONTAL DIRECT OR NON-DIRECT VENT APPLICATIONS

Diagrams showing typical exhaust pipe connections for horizontal applications.

TYPICAL AIR INTAKE PIPE CONNECTIONS IN UPFLOW DIRECT VENT APPLICATIONS

TYPICAL AIR INTAKE PIPE CONNECTIONS IN HORIZONTAL DIRECT VENT APPLICATIONS

Diagrams showing typical air intake pipe connections for horizontal applications.

Intake Piping

General Guidelines for Vent Terminations

VENT TERMINATION CLEARANCES FOR NON-DIRECT VENT INSTALLATIONS IN THE USA AND CANADA

VENT TERMINATION CLEARANCES FOR DIRECT VENT INSTALLATIONS IN THE USA AND CANADA

Required clearances for vent terminations of direct vent installations.

Details of Intake and Exhaust Piping Terminations for Direct Vent Installations

EXHAUST PIPE TERMINATION SIZE REDUCTION

Information on reducing exhaust pipe size for termination.

Exiting Exhaust and Intake Vent (no common pressure zone)

Field Supplied Wall Termination

Instructions for field-supplied wall vent terminations.

DIRECT VENT CONCENTRIC ROOFTOP TERMINATION

Direct Vent Application Using Existing Chimney

Procedures for using an existing chimney for direct vent applications.

Details of Exhaust Piping Terminations for Non-Direct Vent Applications

NON-DIRECT VENT ROOF TERMINATION KIT

Information on non-direct vent roof termination kits.

Non-Direct Vent Field Supplied Wall Termination Extended

Instructions for extended non-direct vent field supplied wall terminations.

NON-DIRECT VENT FIELD SUPPLIED WALL TERMINATION

Instructions for non-direct vent field supplied wall terminations.

Condensate Piping

CONDENSATE TRAP AND PLUG LOCATIONS

Locations for condensate traps and plugs.

Unit with Cooling Coil

Specific considerations for units with a cooling coil.

Evaporator Coil Using a Common Drain

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

Optional Condensate Drain Connection

Options for connecting the condensate drain.

Optional Drain Piping From Trap

Options for drain piping originating from the trap.

Gas Piping

Leak Check

Procedures for checking gas piping for leaks.

Horizontal Applications Possible Gas Piping Configurations

Left Side Piping (Standard)

Standard gas piping configuration for left side entry.

Right Side Piping (Alternate)

Alternate gas piping configuration for right side entry.

GAS PIPE CAPACITY - FT ³;HR (kL;HR)

Electrical

ELECTROSTATIC DISCHARGE (ESD) Precautions and Procedures

Precautions to prevent damage from electrostatic discharge.

INTERIOR MAKE-UP BOX INSTALLATION

Installation of the interior make-up electrical box.

Accessory Terminals

Details on accessory terminals for connecting external devices.

TYPICAL WIRING DIAGRAM

Unit Start-Up

INTEGRATED CONTROL (Automatic Hot Surface Ignition System)

Information on the integrated control system.

Gas Valve Operation

Turning Off Gas to Unit

Steps to safely turn off the gas supply to the unit.

Failure To Operate

Troubleshooting steps for when the unit fails to operate.

Heating Sequence Of Operation

Description of the furnace's heating cycle sequence.

Gas Pressure Adjustment

Gas Flow (Approximate)

Approximate gas flow rates based on meter clocking.

Supply Pressure Measurement

How to measure and check supply gas pressure.

Manifold Pressure Measurement

How to measure and check manifold gas pressure.

Proper Combustion

Guidelines for achieving proper combustion and CO2 levels.

High Altitude Information

Burner Orifice Conversion Kits at Varying Altitudes

Information on burner orifice kits for different altitudes.

A95 and 95 G1 Pressure Switch Requirements at Varying Altitudes

Pressure switch requirements for various altitudes.

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

Other Unit Adjustments

Temperature Rise

How to check and adjust the temperature rise.

Fan Control

Adjusting fan ON and OFF delays for comfort.

Blower Speeds

How to change the blower motor speed settings.

Blower Data

Service

Electrical

Checks for electrical connections, voltage, and amp draw.

Winterizing and Condensate Trap Care

Procedures for winterizing and maintaining the condensate trap.

Cleaning Heat Exchanger

Steps for cleaning the furnace heat exchanger.

Cleaning the Burner Assembly

Planned Service

Diagnostic Codes

Table of diagnostic codes and their meanings.

Repair Parts List

Start-Up & Performance Check List

UNIT SET UP

Checklist items for the initial unit setup.

GAS SUPPLY

Checks related to the gas supply connection and pressure.

DUCT SYSTEM

Checks for proper duct system installation and sealing.

UNIT OPERATION

HEATING MODE

Checks and parameters for the heating mode of operation.

COOLING MODE

Checks and parameters for the cooling mode of operation.

REQUIREMENTS for COMMONWEALTH of MASSACHUSETTS

Modifications to NFPA-54, Chapter 10 -

Modifications to NFPA-54 regarding installation requirements.

MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED.

Manufacturer requirements for provided gas equipment venting systems.

MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED.

Manufacturer requirements for gas equipment when venting system is not provided.

Allied A95UH1E Specifications

General IconGeneral
BrandAllied
ModelA95UH1E
CategoryFurnace
LanguageEnglish

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