AirTemp Oil Furnace Installation Manual

The AirTemp Oil Furnace is a high-efficiency heating system designed for residential and light commercial applications. This manual covers the installation, operation, and maintenance of AirTemp oil-fired furnaces, including safety precautions, electrical connections, fuel line installation, venting requirements, and startup procedures. Below are key sections for proper installation and operation.

1. Features at a Glance 2. Installation Requirements 3. Pre-Installation Checklist 4. Specifications 5. Controls and Components 6. Electrical Connections 7. Fuel System Installation 8. Venting and Combustion Air 9. Startup and Commissioning 10. Maintenance Procedures 11. Troubleshooting

Features at a Glance

Key components: Cast iron heat exchanger, Beckett oil burner, primary control, combustion chamber, blower assembly, and safety controls.

Feature	Description
Heat Exchanger	Cast iron construction for durability and efficiency
Oil Burner	Beckett AFG with adjustable air band
Primary Control	R8184G with safety lockout
Blower Motor	PSC type with multi-speed settings
Thermostat Connections	Standard 24V connections
Safety Controls	High limit control, rollout switch
Flue Outlet	5-inch diameter for venting
Fuel Unit	Single-stage fuel pump
Ignition System	High-voltage transformer and electrodes
Filter System	Replaceable air filter

Installation Requirements

Proper installation requires adequate clearances, level mounting, and correct venting.

Clearances: Minimum 18 inches from combustible materials on sides, 6 inches rear, 24 inches front.
Location: Install in dry, well-ventilated area with access for service.
Foundation: Level, solid concrete or masonry base.
Venting: Properly sized flue pipe with minimum draft of 0.02" WC.

WARNING! Installation must comply with local codes and NFPA 31 standards. Only qualified technicians should install.

Pre-Installation Checklist

Verify all components and conditions before installation.

Inspect furnace for shipping damage.
Verify electrical service: 120V, 15A dedicated circuit.
Check fuel oil supply: #2 heating oil, clean storage tank.
Confirm venting materials: Type L vent pipe or equivalent.
Ensure combustion air supply: 1 sq. inch per 1000 BTU/hr input.

CAUTION! Furnace is heavy; use proper lifting equipment and multiple personnel.

Specifications

Input Capacity: 85,000 - 150,000 BTU/hr
Efficiency: 83% AFUE
Fuel: #2 Heating Oil
Electrical: 120V, 60Hz, 5A
Blower Capacity: 800-1400 CFM
Flue Size: 5-inch diameter
Dimensions: 28"W x 56"H x 26"D
Weight: 285 lbs
Oil Pump Pressure: 100 PSI
Nozzle Size: 0.75 - 1.25 GPH

Controls and Components

Access control panel by removing front door. Primary control: R8184G with reset button.

Control Sequence: Thermostat calls for heat, primary control starts burner motor, ignition transformer energizes, fuel valve opens, flame established.

Safety Controls: High limit switch (opens at 200°F), flame rollout switch, stack relay, pressure switch. Adjustments: Burner air band, pump pressure, electrode position, blower speed taps.

Electrical Connections

Connect to dedicated 120V circuit with proper grounding.

Disconnect power before making connections.
Connect line voltage: Black (hot), White (neutral), Green (ground).
Connect thermostat: R (24V), W (heat), G (fan), C (common).
Verify polarity and secure all connections.

Tip: Use conduit for all exposed wiring. Follow NEC and local codes.

Fuel System Installation

Proper fuel line installation is critical for safe operation.

Install oil filter: Use 10-micron filter in supply line.
Run copper tubing: 3/8" OD from tank to furnace.
Maintain slope: 1/4" per foot toward tank for returns.
Install shutoff valve: Within 10 feet of furnace.
Pressure test: Check for leaks at all connections.

WARNING! Never use galvanized pipe for oil lines. Ensure no leaks before startup.

Venting and Combustion Air

Proper venting ensures safe removal of combustion gases.

Vent pipe: Minimum 5-inch diameter, Type L double-wall.
Draft: Adjust barometric damper for 0.02-0.04" WC overfire draft.
Chimney: Must extend 3 feet above roof penetration.
Combustion air: Provide adequate fresh air supply per local codes.
Clearances: Maintain required clearances to combustible materials.

CAUTION! Never vent into masonry chimney without liner. Test draft before operation.

Startup and Commissioning

Follow proper startup sequence for safe operation.

Purge air from fuel lines: Open bleeder valve until solid oil flow.
Check ignition: Observe spark and flame establishment.
Adjust combustion: Use smoke tester and CO analyzer.
Set temperature rise: Adjust blower speed for 40-70°F rise.
Verify safety controls: Test high limit and rollout switches.

WARNING! Always use combustion analyzer for proper adjustments.

Maintenance Procedures

Regular maintenance ensures efficiency and safety.

Annual maintenance: Replace nozzle, clean electrodes, change oil filter, vacuum heat exchanger, check pump pressure, test safety controls, clean blower wheel.

CAUTION! Always disconnect power and fuel supply before servicing.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No ignition	Power, transformer, electrodes	Check power supply; test transformer; clean/adjust electrodes.
Lockout on primary	Flame signal, cad cell	Clean cad cell eye; check flame signal (0.5-10 microamps).
Smoky combustion	Air adjustment, nozzle	Adjust air band; replace nozzle; check draft.
No heat	Thermostat, limit switch	Check thermostat setting; reset high limit switch.
Blower not running	Motor, capacitor, speed tap	Test motor windings; replace capacitor; check speed tap setting.

Reset Procedure: Press reset button on primary control; wait 5 minutes between attempts.

Service: Contact authorized AirTemp service provider for technical support.