Enterprise Fawcett Oil Furnace Manual

The Enterprise Fawcett Oil Furnace is a high-efficiency heating system designed for residential and light commercial applications. This manual covers the Fawcett series oil-fired furnaces with capacities ranging from 85,000 to 150,000 BTU/h, featuring Beckett oil burners, heat exchangers with 5-year warranty, electronic ignition systems, and compatibility with standard thermostat controls. Below are key sections for safety, operation, maintenance, troubleshooting, and technical specifications.

1. Safety Information 2. Installation Requirements 3. Initial Startup Procedure 4. Technical Specifications 5. Control Panel Operation 6. Fuel System Setup 7. Routine Maintenance 8. Seasonal Operation 9. Cleaning Procedures 10. Warranty Information 11. Troubleshooting Guide

Safety Information

Critical safety warnings and precautions for proper furnace operation.

Hazard	Precaution
Carbon Monoxide	Install CO detectors; ensure proper ventilation
High Temperature	Keep combustibles away from furnace surfaces
Fuel Oil	No smoking near fuel lines; clean spills immediately
Electrical Shock	Disconnect power before servicing
Burn Hazard	Allow furnace to cool before maintenance
Oil Fumes	Ensure adequate combustion air supply
Fire Risk	Maintain clearances to combustibles
Pressure Vessel	Do not modify heat exchanger
Moving Parts	Keep blower access doors secured
Chemical Exposure	Use PPE when handling cleaning chemicals

Installation Requirements

Proper installation guidelines for safe and efficient operation.

Location: Install in well-ventilated area with minimum clearances (6" sides, 12" front, 24" top).
Venting: Use UL-listed chimney or vent pipe; maintain proper draft (0.02-0.04" WC).
Fuel Supply: Install #2 heating oil tank with proper filtration and shutoff valve.
Electrical: Connect to dedicated 120V circuit with proper grounding.
Thermostat: Install compatible 24V thermostat with heat anticipator setting.

WARNING! Installation must comply with local codes and NFPA 31 standards. Professional installation recommended.

Initial Startup Procedure

Step-by-step process for first-time furnace operation.

System Check: Verify all connections, fuel lines, and electrical wiring.
Ventilation: Confirm combustion air supply and exhaust venting.
Fuel Prime: Fill oil lines and bleed air from system using pump bleeder valve.
Ignition: Set thermostat to call for heat; observe burner ignition sequence.
Adjustment: Set combustion efficiency to 80-85% using smoke and CO2 tests.

CAUTION! Always perform combustion analysis during initial startup. Improper adjustment can create hazardous conditions.

Technical Specifications

Model Series: Fawcett OF-85 to OF-150
Heating Capacity: 85,000 - 150,000 BTU/h
Fuel Type: #2 Heating Oil
Efficiency: 82-86% AFUE
Burner: Beckett AFG with 0.75 - 1.25 GPH nozzle
Controls: Primary safety control with 30-second prepurge
Blower Motor: 1/3 HP, multi-speed PSC
Electrical: 120V, 60Hz, 8-12 amps
Dimensions: 55"H x 21"W x 26"D
Weight: 185-220 lbs

Control Panel Operation

Understanding furnace controls and indicator lights.

Main Controls: POWER switch, RESET button, SERVICE indicator light, PRIMARY CONTROL module.

Operation Sequence: Thermostat call → Prepurge (30 sec) → Ignition transformer on → Oil valve opens → Flame establishment → Blower delay (60-90 sec) → Heat delivery. Safety Features: Flame rollout switch, high limit control, pressure switch, stack temperature sensor.

Fuel System Setup

Proper fuel oil system configuration and maintenance.

Oil Tank: Minimum 275-gallon capacity with bottom outlet.
Filters: Install 10-micron primary filter and burner unit filter.
Lines: Use copper or steel tubing; avoid plastic near furnace.
Pressure: Set pump pressure to 100 psi for proper atomization.
Nozzle: Select appropriate size (0.75-1.25 GPH) and spray pattern.

Tip: Replace nozzle and filter annually for optimal performance.

Routine Maintenance

Scheduled maintenance tasks for reliable operation.

Monthly: Check fuel level; inspect for leaks; verify thermostat operation.
Seasonal: Clean heat exchanger; replace oil filter; inspect electrodes.
Annual: Professional combustion analysis; nozzle replacement; blower cleaning.
Biannual: Flue inspection; safety control testing; motor lubrication.
As Needed: Reset lockouts; clear error codes; adjust belt tension.

WARNING! Only qualified technicians should perform internal combustion chamber maintenance.

Seasonal Operation

Preparing furnace for heating season and summer shutdown.

Startup Checklist: Verify fuel supply, check electrical connections, test safety controls, clean combustion chamber, set thermostat. Shutdown Procedure: Turn off power, close fuel valve, clean furnace exterior, cover if storing. Off-season: Keep area dry, protect from moisture, inspect annually.

Cleaning Procedures

Proper cleaning methods for furnace components.

Exterior: Use damp cloth only; no harsh chemicals. Heat Exchanger: Vacuum surfaces; use soft brush for soot removal. Blower Assembly: Clean blades; lubricate bearings if required. Combustion Chamber: Professional cleaning only.

CAUTION! Never use water or compressed air on electrical components. Disconnect power before cleaning.

Warranty Information

Enterprise Fawcett furnace warranty coverage and limitations.

Heat Exchanger: 5-year limited warranty. Parts: 1-year coverage on components. Labor: 90 days from installation. Registration: Complete and return within 30 days of installation. Exclusions: Damage from improper installation, lack of maintenance, or use of contaminated fuel. For claims, contact Enterprise Heating Systems at 1-800-555-HEAT or www.enterpriseheating.com.

Troubleshooting Guide

Symptom	Possible Cause	Corrective Action
No heat	Power outage, tripped breaker, thermostat issue	Check power supply; reset breaker; verify thermostat setting
Burner won't ignite	No fuel, ignition failure, control lockout	Check fuel supply; inspect electrodes; reset primary control
Smoky combustion	Dirty nozzle, poor air adjustment, clogged flue	Replace nozzle; adjust air shutter; inspect venting
Frequent cycling	Oversized nozzle, high limit tripping, airflow issues	Verify nozzle size; check filter; test limit control
Unusual noises	Pump cavitation, motor bearing wear, loose components	Bleed air from lines; lubricate motor; tighten mounts
Oil odor	Leaking fittings, overpriming, spillage	Tighten connections; clean spills; check tank vents
High fuel consumption	Dirty burner, poor efficiency, thermostat issues	Clean combustion chamber; perform efficiency test; calibrate thermostat

Reset Procedure: Press RESET button once; wait 5 minutes between attempts.

Service: 1-800-555-HEAT; www.enterpriseheating.com