Magic Chef Furnace Owners Manuals

The Magic Chef Furnace is a high-efficiency residential heating system designed for reliable home comfort. Featuring advanced combustion technology, multiple safety systems, programmable thermostat compatibility, and energy-efficient operation. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: High-efficiency heat exchanger, Electronic ignition system, Multi-speed blower motor, Integrated safety controls, Thermostat interface.

Installation Requirements

Professional installation recommended. Ensure proper clearances and venting.

1. Location: Install in well-ventilated area with proper clearances to combustibles.
2. Venting: Follow local codes for PVC or ABS vent pipe installation.
3. Gas Supply: Connect to proper gas line with sediment trap and shut-off valve.
4. Electrical: Connect to 120V AC power with proper grounding.
5. Ductwork: Ensure proper return and supply air duct connections.

WARNING! Installation must comply with local building codes. Gas furnaces produce carbon monoxide - ensure proper venting.

First-Time Setup

Initial startup must be performed by qualified technician.

1. System Check: Verify all connections, gas pressure, and electrical wiring.
2. Venting Test: Confirm proper draft and venting operation.
3. Gas Pressure: Set manifold pressure according to specifications.
4. Blower Speed: Adjust blower speeds for heating operation.
5. Thermostat: Connect and configure compatible thermostat.

CAUTION! Only qualified HVAC technicians should perform initial startup and gas connections.

Technical Specifications

• Heating Capacity: 40,000 - 120,000 BTU/H (model dependent)
• Efficiency Rating: 80% - 96% AFUE (model dependent)
• Gas Type: Natural Gas or LP (conversion kit required)
• Electrical: 120V AC, 60Hz, 15 Amp circuit
• Blower Motor: Multi-speed ECM or PSC motor
• Filter Size: 16x25x1 or 20x25x1 standard
• Venting: 2" - 3" PVC/ABS for high-efficiency models
• Sound Level: < 65 dB during operation
• Warranty: 20-year heat exchanger, 5-year parts

Controls and Settings

Integrated control board with diagnostic capabilities. Access via control panel or thermostat.

Control Board: LED status lights, dip switch settings, reset button.

Thermostat Settings: Heat/Cool/Auto modes, Fan On/Auto, Temperature setpoints. Blower Speeds: Adjustable for heating and continuous fan operation. Gas Valve: Pressure settings, ignition timing. Safety Controls: Manual reset buttons for rollout and limit switches.

Venting and Ductwork

Proper venting is critical for safe operation and efficiency.

1. Vent Pipe: Use only approved PVC or ABS materials.
2. Termination: Maintain proper clearances from windows and openings.
3. Slope: Ensure proper slope back to furnace for condensation drainage.
4. Duct Sizing: Follow Manual D calculations for proper airflow.
5. Filters: Install proper size filter for optimal airflow.

Tip: Regular inspection of vent pipes and connections prevents safety hazards.

Operating Instructions

Daily operation through thermostat control.

1. Power On: Ensure furnace switch and circuit breaker are on.
2. Thermostat: Set to HEAT mode and desired temperature.
3. Startup: Furnace will initiate ignition sequence automatically.
4. Operation: Blower will start after warm-up period.
5. Shutdown: Lower thermostat setting to stop heating cycle.
6. Continuous Fan: Use FAN ON setting for constant air circulation.
7. Seasonal: Perform seasonal maintenance before heating season.
8. Filter: Check monthly and replace as needed.

WARNING! Never block return or supply air registers. Maintain clear space around furnace.

Maintenance Schedule

Regular maintenance ensures efficiency and longevity.

Safety Features

Multiple safety systems protect against hazardous conditions.

Flame Rollout Switch: Detects improper burner flames. Pressure Switch: Ensures proper venting draft. High Limit Switch: Prevents overheating. Ignition Control: Monitors flame sensing. Gas Valve: Automatic shut-off capabilities. Carbon Monoxide: Proper venting prevents CO accumulation.

Regulatory Information

UL certified for safety standards. ANSI Z21.47 compliant for gas appliances. Meets DOE efficiency requirements. Manufactured to comply with U.S. safety and performance standards. For technical support, contact Magic Chef at 1-800-688-9900 or visit www.magicchef.com.

Troubleshooting

Reset: Power cycle furnace at disconnect switch.

Service: 1-800-688-9900; www.magicchef.com