Armstrong Ultra 80 Oil Furnace Manual

The Armstrong Ultra 80 is a high-efficiency residential oil furnace featuring AFUE ratings up to 86.5%, two-stage firing capability, Beckett flame retention burner, induced draft system, stainless steel heat exchanger, integrated combustion air blower, electronic ignition system, and compatibility with standard thermostat controls. Designed for reliable heating performance with low operating costs. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Stainless steel heat exchanger, Beckett AFG oil burner, induced draft motor, primary control, cad cell flame detector, and integrated safety controls.

Installation Requirements

Professional installation required. Ensure proper clearances and local code compliance.

1. Location: Install in dry, clean area with adequate combustion air and service access.
2. Clearances: Maintain minimum 18 inches front clearance, 6 inches sides and rear.
3. Venting: Use approved vent pipe; maintain proper slope and termination clearances.
4. Oil Supply: Install oil filter and shutoff valve; ensure proper oil line size.
5. Electrical: Connect to dedicated 120V circuit; proper grounding required.

WARNING! Installation must comply with NFPA 31 and local codes. Carbon monoxide hazard if improperly installed.

First-Time Startup

Initial startup must be performed by qualified technician.

1. System Check: Verify all connections, oil supply, electrical power.
2. Venting: Confirm proper draft and vent system integrity.
3. Oil System: Prime oil line, check for leaks, set pump pressure.
4. Combustion: Perform combustion analysis, adjust air shutter for proper CO2.
5. Operation: Test complete heating cycle including safety controls.

CAUTION! Never bypass safety controls. Test smoke and CO detectors in living space.

Technical Specifications

• Model Series: Ultra 80
• AFUE Rating: Up to 86.5%
• Input Capacity: 80,000 - 150,000 BTU/hr
• Nozzle Size: 0.50 - 1.25 GPH
• Pump Pressure: 100 PSI standard
• Electrical: 120V, 60Hz, 5-8 amps
• Air Temperature Rise: 40-70°F
• Static Pressure: 0.1 - 0.5 in. w.c.
• Vent Size: 4-6 inch diameter
• Weight: 180-220 lbs

Controls and Settings

Primary control: Manages burner operation with safety lockout. Thermostat connections: R, W, G terminals.

Adjustments: Pump pressure (100 PSI), air shutter (set during installation), blower delay (30-60 seconds), high limit setting (typically 200°F).

Primary Control LED Codes: Steady green (normal operation), flashing red (lockout), off (no power). Reset button: Press once after lockout; wait for purge cycle.

Venting and Combustion Air

Requires dedicated combustion air source and proper venting.

1. Vent Pipe: Use UL-listed Type L vent or approved equivalent.
2. Termination: Maintain clearances per local code (typically 12 inches from openings).
3. Combustion Air: Provide adequate fresh air supply per furnace input.
4. Draft: Verify 0.02-0.06 in. w.c. overfire draft.

Tip: Annual inspection of vent system required to prevent blockages.

Operating Instructions

Normal operation controlled by thermostat.

1. Thermostat Call: Set thermostat above room temperature for heat demand.
2. Startup Sequence: Induced draft motor starts, prepurge (15-30 seconds), ignition, burner lights.
3. Running: Blower starts after heat exchanger warms (30-60 second delay).
4. Shutdown: Thermostat satisfied, burner shuts off, post-purge, blower continues until cool.
5. Lockout: If burner fails to light after 3 attempts, system locks out requiring reset.

WARNING! Never operate with access panels removed. Monitor for unusual noises or odors.

Maintenance Procedures

Annual professional maintenance recommended.

1. Monthly: Check filter; replace when dirty.
2. Seasonal: Inspect vent system, check oil filter, test safety controls.
3. Annual: Professional cleaning of heat exchanger, burner, combustion chamber.
4. Oil System: Replace nozzle, check pump pressure, clean fuel unit.
5. Electrical: Check wiring, motor capacitors, control operation.

CAUTION! Disconnect power before servicing. Only qualified technicians should perform internal maintenance.

Safety Features

Multiple safety systems protect against hazardous conditions.

Regulatory Information

UL listed and complies with ANSI/UL 727 standards. Manufactured to meet U.S. Department of Energy efficiency standards. Installation must comply with NFPA 31 (Standard for the Installation of Oil-Burning Equipment) and local building codes. For technical support, contact Armstrong Air Technical Services at 1-800-448-5872 or visit www.armstrongair.com.

Troubleshooting Guide

Reset Procedure: Press reset button on primary control once. Wait for complete cycle.

Service: 1-800-448-5872; www.armstrongair.com