Airease A95UH2V User Manual

506878-01 Page 1 of 62Issue 1139
This manual must be left with the homeowner for future reference.
INSTALLATION INSTRUCTIONS
A95UH2V & 95G2UHV
Warm Air Gas Furnace
Upflow/Horizontal Left Air Discharge
Direct Vent & Non-Direct Vent
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
(P) 506878-01
*P506878-01*
Unit Dimensions ............................................................ 2
A95UH2V/95G2UHV Parts Arrangement ..................... 3
A95UH2V/95G2UHV Gas Furnace ............................... 4
Shipping and Packing List ............................................ 4
Safety Information ......................................................... 4
Use of Furnace as a Construction Heater .................... 5
General ......................................................................... 6
Shipping Bolt Removal ................................................. 9
Setting Equipment ........................................................ 9
Removing Bottom Panel ............................................. 11
Upflow Application ONLY ............................................ 11
Horizontal Application ONLY ....................................... 11
Filters .......................................................................... 13
Duct System ................................................................ 13
Pipe and Fittings Specifications .................................. 13
Canadian Applications ONLY ...................................... 14
TABLE OF CONTENTS
Joint Cementing Procedure ........................................ 14
Venting Practices ........................................................ 16
Vent Piping Guidelines ................................................ 17
Gas Piping .................................................................. 36
Electrical ..................................................................... 39
Failure Codes.............................................................. 44
Unit Start Up ................................................................ 47
Gas Valve Operation ................................................... 48
Heating Sequence of Operation ................................. 48
High Altitude Information............................................. 50
Other Unit Adjustments ............................................... 50
Blower Data................................................................. 52
Service ........................................................................ 56
Planned Service .......................................................... 58
Repair Parts List ......................................................... 59
Start Up Checklist ....................................................... 60

Airease A95UH2V Specifications

General

Fuel Type	Natural Gas
AFUE	95%
Stages	Two-Stage
Blower Motor	Variable Speed
Stages of Heating	2
Warranty	10 years limited

Summary

Gas Furnace Installation

Safety Information

Crucial safety warnings, cautions, and danger notices for installation and operation.

General Furnace Installation

Combustion, Dilution & Ventilation Air

Requirements for providing adequate combustion, dilution, and ventilation air for furnace operation.

Combustion Air Supply Details

Unconfined Space Air Supply

Guidance for air supply in unconfined spaces.

Confined Space Air Supply

Guidance for air supply in confined spaces.

Duct System

Pipe & Fittings Specifications

Venting Practices

Vent Piping Guidelines

Guidance on sizing and routing vent pipes for direct and non-direct vent configurations.

Vent Termination Clearances

Non-Direct Vent Clearances

Specific clearance requirements for vent terminations in non-direct vent systems.

Vent Termination Clearances

Direct Vent Clearances

Specific clearance requirements for vent terminations in direct vent systems.

Intake and Exhaust Piping Terminations

Details for Direct Vent Installations

Specific details for routing and terminating intake and exhaust pipes in direct vent systems.

Exhaust Piping Terminations

Details for Non-Direct Vent Applications

Details for terminating exhaust piping for non-direct vent applications.

Condensate Piping

Gas Piping

Leak Check

Procedures for checking gas piping connections for leaks.

Electrical

Electrostatic Discharge (ESD) Precautions

Procedures to protect electronic components from electrostatic discharge.

Electrical Wiring

Furnace Operation and Features

Control Diagnostics

Failure Codes

Explanation of red LED fault codes for system problems.

Unit Start-Up

Before Lighting Procedures

Safety checks and procedures to perform before lighting the furnace.

Placing the Furnace into Operation

Gas Valve Operation

Failure To Operate

Heating Sequence of Operation

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

Gas Pressure and Combustion

Gas Flow Measurement

Proper Combustion

Testing for Proper Venting and Sufficient Combustion Air

Non-Direct Vent Application Testing

Steps to test venting and combustion air for non-direct vent installations.

Service

Winterizing and Condensate Trap Care

Cleaning Procedures

Cleaning Heat Exchanger

Cleaning the Burner Assembly

Planned Service

Annual Inspection Items

Start-Up & Performance Check List

Unit Set Up Checklist

Checklist for verifying proper unit setup before operation.

Unit Operation

Heating Mode Operation

Cooling Mode Operation