Trane XV80 Furnace Manual

The Trane XV80 is a high-efficiency gas furnace featuring variable-speed technology, two-stage heating operation, and up to 80% AFUE rating. This multi-positional furnace is designed for quiet operation and reliable performance in residential applications. Below are key sections covering safety, features, installation, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Variable-speed blower motor, two-stage gas valve, hot surface ignitor, induced draft motor, and integrated control board.

Feature	Description
AFUE Rating	Up to 80% Annual Fuel Utilization Efficiency
Heating Stages	Two-stage heating operation
Blower Motor	Variable-speed ECM technology
Ignition System	Hot surface direct ignition
Venting	PVC pipe compatible for sidewall venting
Position	Multi-position (upflow, downflow, horizontal)
Sound Level	Quiet operation with insulated cabinet
Control Board	Integrated furnace control with diagnostic LED
Gas Valve	Two-stage modulating gas valve
Filter Size	Standard 1-inch or 4-inch media filter

Installation Requirements

Proper installation requires certified HVAC technician. Verify local codes and obtain permits.

1. Location: Install in dry, clean area with adequate clearance for service access.
2. Venting: Use approved PVC pipe for combustion air and flue gas venting.
3. Gas Connection: Use black iron pipe with proper thread sealant.
4. Electrical: 120V AC power supply with proper grounding.
5. Ductwork: Ensure proper sizing and sealing for optimal performance.

WARNING! Gas furnaces produce carbon monoxide; improper installation can be fatal. Installation must comply with all local codes and manufacturer specifications.

First-Time Setup

Initial startup must be performed by qualified technician.

1. Verify all connections: Gas, electrical, venting, and ductwork.
2. Check gas pressure: Adjust manifold pressure per specifications.
3. Test ignition sequence: Ensure proper flame sensing and operation.
4. Program thermostat: Compatible with two-stage heating thermostats.
5. Set blower speeds: Adjust for proper airflow and temperature rise.

CAUTION! Never operate furnace without proper venting and combustion air supply.

Technical Specifications

• AFUE Rating: 80%
• Heating Capacity: 40,000 to 120,000 BTU/h
• Stages: Two-stage heating
• Blower Type: Variable-speed ECM
• Ignition: Hot surface direct spark
• Venting: PVC, CPVC, or ABS (2" or 3")
• Gas Type: Natural gas (convertible to LP)
• Electrical: 120V, 60Hz, 1.5-8.0 amps
• Sound Level: As low as 65 dB
• Warranty: Limited lifetime heat exchanger

Controls and Operation

Integrated control board manages all furnace operations with LED diagnostic indicators.

Thermostat: Compatible with single-stage, two-stage, and programmable thermostats.

Operation Sequence: Call for heat → Inducer motor starts → Pressure switch verification → Hot surface ignitor heats → Gas valve opens → Flame detection → Blower starts after delay.

LED Codes: Steady green = normal operation; Flashing codes indicate specific faults (refer to troubleshooting chart).

Venting and Combustion Air

Proper venting is critical for safe operation and efficiency.

1. Vent Pipe: Use Schedule 40 PVC, CPVC, or approved ABS.
2. Vent Length: Follow manufacturer's maximum length specifications.
3. Combustion Air: Provide adequate fresh air supply per local codes.
4. Terminations: Maintain proper clearance from windows, doors, and air intakes.

Tip: Install carbon monoxide detectors in living areas near sleeping quarters.

Maintenance Procedures

Annual maintenance by qualified technician recommended.

1. Filter Replacement: Replace every 1-3 months depending on usage.
2. Blower Cleaning: Vacuum blower assembly and motor annually.
3. Heat Exchanger: Inspect for cracks or corrosion.
4. Burner Cleaning: Clean burners and inspect flame pattern.
5. Vent System: Inspect for obstructions or damage.
6. Electrical: Check all connections and component operation.

WARNING! Turn off gas and electrical power before performing any maintenance.

Safety Features

Multiple safety systems protect against hazardous conditions.

• Flame Rollout Switches: Detect improper burner flames
• Limit Switches: Prevent overheating
• Pressure Switches: Verify proper venting
• Flame Sensor: Ensures gas valve closes if no flame
• Ignition Control: Limited trial-for-ignition period

Care & Cleaning

Regular maintenance ensures optimal performance and longevity.

Monthly: Check and replace air filter as needed.

Annual: Professional inspection and cleaning.

CAUTION! Never operate furnace without air filter. Keep area around furnace clean and unobstructed.

Regulatory Information

UL listed and ANSI certified. Complies with U.S. Department of Energy efficiency standards. Manufactured to meet or exceed industry safety standards. For technical support, contact Trane Residential at 1-800-945-5884 or visit www.trane.com. Copyright © Trane U.S. Inc. All rights reserved.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Furnace won't start	Power, thermostat, switch	Check circuit breaker, thermostat setting, door switch
No heat	Gas supply, ignitor, filter	Verify gas valve on, check for clogged filter, inspect ignitor
Short cycling	Filter, limit switch, airflow	Replace filter, check for restricted airflow, verify limit switch
Blower won't stop	Thermostat, control board	Check thermostat fan setting, inspect control board
Unusual noises	Motor, blower wheel, ducts	Inspect blower assembly, check for loose components

Reset: Turn power off for 30 seconds then restore.

Service: 1-800-945-5884; www.trane.com