Air Ease Gas Furnace Manual

The Air Ease Gas Furnace is a high-efficiency heating system designed for residential use, featuring advanced combustion technology, multiple heating stages, variable-speed blower motor, electronic ignition system, built-in safety controls, diagnostic LED indicators, and compatibility with standard thermostat systems. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Thermostat 7. Operation 8. Maintenance 9. Safety Features 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Gas valve assembly, heat exchanger, blower motor, electronic ignition, pressure switches, flame sensor, diagnostic board, filter compartment.

Feature	Description
Gas valve	Precise gas flow control with multiple stages
Heat exchanger	Stainless steel construction for high efficiency
Blower motor	Variable-speed ECM motor for quiet operation
Electronic ignition	Hot surface igniter for reliable startup
Pressure switches	Safety verification of proper venting
Flame sensor	Monitors burner flame presence
Diagnostic LED	Flashing codes for troubleshooting
Filter compartment	Easy-access standard 1-inch filter
Safety shutoff	Automatic gas shutoff in case of malfunction
Thermostat connection	Standard 24VAC terminal connections

Installation

Unpack and inspect all components. Ensure proper clearances and ventilation.

Location selection: Choose well-ventilated area with proper clearances to combustibles.
Gas line connection: Use approved gas piping and fittings; pressure test for leaks.
Vent system: Install PVC vent pipes according to local codes and manufacturer specifications.
Electrical connection: Connect to 120V power supply with proper grounding.
Thermostat wiring: Connect standard 24V thermostat wires to control board.

WARNING! Installation must be performed by qualified HVAC technician. Gas leaks can cause explosion or fire.

First-Time Setup

Complete installation verification before initial startup.

Gas pressure check: Verify inlet and manifold pressures are within specifications.
Vent system verification: Confirm proper draft and no obstructions.
Electrical verification: Check all connections and proper voltage.
Initial startup: Follow lighting instructions; observe first ignition cycle.
System check: Verify proper heating operation and thermostat control.

CAUTION! Never bypass safety controls. Carbon monoxide poisoning can occur with improper installation.

Specifications

Heating Capacity: 40,000-120,000 BTU/h (model dependent)
Efficiency: 80-96% AFUE (model dependent)
Gas Type: Natural gas or LP (conversion kit required)
Electrical: 120V AC, 60Hz, 15A circuit
Blower Motor: Variable-speed ECM
Stages: Single or two-stage operation
Vent Material: PVC or ABS (category IV)
Filter Size: Standard 1-inch or 4-inch media (model dependent)
Warranty: Limited lifetime heat exchanger, 10 years parts

Controls and Settings

Access control board via front panel. Diagnostic LED provides status codes.

Control Board: Power switch, diagnostic LED, dip switch settings, terminal connections.

Operating Modes: HEAT, COOL, FAN ONLY. Blower Settings: Continuous fan, auto mode. Temperature Control: Via thermostat. Diagnostic Codes: LED flash patterns indicate specific faults. Dip Switches: Heat anticipator settings, blower delays, staging configuration.

Connecting Thermostat

Standard 24V thermostat connection with R, W, Y, G, C terminals.

Turn off power to furnace before wiring.
Identify thermostat wires: R (24V), W (heat), Y (cool), G (fan), C (common).
Connect wires to corresponding terminals on control board.
Program thermostat for heating operation and desired temperature settings.

Tip: Use programmable thermostat for optimal energy efficiency and comfort.

Operation

Normal heating cycle operation and system functions.

Thermostat call: Thermostat calls for heat when temperature drops below set point.
Inducer operation: Inducer motor starts to establish draft.
Pressure switch: Verifies proper draft before ignition.
Ignition sequence: Hot surface igniter glows, gas valve opens.
Flame verification: Flame sensor confirms burner ignition.
Blower operation: Blower starts after heat exchanger warm-up delay.
Cycle completion: System shuts down when thermostat satisfied.

WARNING! Never operate furnace with access panels removed. Risk of electric shock and carbon monoxide exposure.

Maintenance

Regular maintenance ensures optimal performance and safety.

Monthly: Check and replace air filter as needed.
Seasonal: Inspect vent system for obstructions or damage.
Annual: Professional inspection and cleaning of burners, heat exchanger, and flue passages.
Biannual: Check gas pressure and combustion analysis.
As needed: Clean flame sensor and inspect electrical connections.

CAUTION! Always turn off power and gas supply before performing any maintenance.

Safety Features

Multiple safety systems protect against hazardous conditions.

Safety Feature	Function
Flame rollout switches	Detects flame outside combustion chamber
High limit switch	Prevents overheating of heat exchanger
Pressure switches	Ensures proper venting before ignition
Flame sensor	Confirms burner ignition within safety time
Gas valve	Automatic shutoff if ignition fails
Carbon monoxide detector	Recommended for additional safety

Regulatory Information

UL certified for safety standards. ANSI Z21.47 compliant for gas-fired central furnaces. Meets DOE energy efficiency standards. Manufactured in compliance with EPA regulations. For technical support, contact Air Ease customer service at 1-800-448-0123 or visit www.airease.com.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Furnace won't start	Power, thermostat, safety lockout	Check power switch, thermostat settings, reset if locked out.
No heat	Gas supply, ignition failure	Verify gas valve on, check for ignition attempts, inspect flame sensor.
Short cycling	Dirty filter, airflow restriction	Replace filter, check vents and registers for obstructions.
Blower won't stop	Thermostat fan setting	Check thermostat fan setting (auto vs. on), inspect fan relay.
Unusual noises	Motor bearings, loose components	Inspect blower wheel, motor mounts, tighten loose panels.
Error codes flashing	System fault detected	Count LED flashes and refer to diagnostic code chart in manual.

Reset: Power cycle furnace by turning switch off for 30 seconds then on.

Service: 1-800-448-0123; www.airease.com