Monarch Add A Furnace Manual

The Monarch Add A Furnace is a high-efficiency heating system designed for residential and light commercial applications. This furnace features advanced combustion technology, variable-speed blower motor, electronic ignition, multiple heat stages, smart thermostat compatibility, energy-saving modes, safety shut-off systems, and easy maintenance access. Rated for 120V AC operation with AFUE ratings up to 96%. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Heat exchanger, blower assembly, gas valve, ignition system, control board, filter compartment, flue outlet, thermostat connections.

Installation

Unpack and inspect all components. Ensure proper clearances and venting requirements.

1. Position furnace: Place on stable, level surface with proper clearances to combustible materials.
2. Connect gas supply: Use approved gas piping and fittings; pressure test for leaks.
3. Install venting: Use proper PVC piping for intake and exhaust; maintain slope requirements.
4. Electrical connections: Connect 120V power supply and thermostat wiring.
5. Ductwork: Connect supply and return ducts securely.

WARNING! Gas furnaces produce carbon monoxide; proper venting is critical. Installation must comply with local codes.

First-Time Setup

Power on furnace; follow startup sequence.

1. Gas pressure adjustment: Verify and adjust manifold pressure per specifications.
2. Blower speed settings: Set appropriate speeds for heating mode.
3. Thermostat configuration: Program heating schedules and temperature settings.
4. System check: Verify proper ignition sequence and flame stability.
5. Airflow verification: Check static pressure and adjust blower as needed.

CAUTION! Only qualified technicians should perform gas pressure adjustments and combustion analysis.

Specifications

• Heating Capacity: 40,000 - 120,000 BTU/H (multiple models)
• AFUE Rating: Up to 96% efficiency
• Electrical: 120V AC, 60Hz, 5-8 amps
• Gas Type: Natural gas or LP (field convertible)
• Blower Motor: ECM variable speed
• Stages: Two-stage heating operation
• Venting: PVC pipe (2-3 inch diameter)
• Filter Size: 16x25x1 inch standard
• Sound Level: Less than 70 dB
• Warranty: 20-year heat exchanger, 5-year parts

Controls and Settings

Access control board via front service panel. Integrated diagnostic LED for troubleshooting.

Thermostat Controls: Heat/Cool/Off mode selection, temperature setpoints, fan control, program schedules.

Operating Modes: HEAT, COOL (with AC), FAN ONLY. Blower Settings: Auto or Continuous operation. Temperature Control: Single-stage or multi-stage compatible. Advanced Settings: Filter reminder timer, blower off delay, smart recovery. Diagnostic Codes: LED flash patterns indicate specific error conditions.

Connecting Thermostat

Standard thermostat connections: R (power), C (common), W (heat), G (fan), Y (cool).

1. Turn off power to furnace before wiring.
2. Strip thermostat wires 1/4 inch and connect to appropriate terminals.
3. Match wire colors to terminal labels (consult thermostat manual).
4. For smart thermostats: May require C-wire connection for continuous power.

Tip: Use a multimeter to verify proper voltage at thermostat connections.

Operating Modes

Supports multiple heating and fan operations.

1. Heating Mode: Thermostat calls for heat; furnace ignites and provides warm air.
2. Fan Mode: Circulates air without heating; can be set to Auto or Continuous.
3. Standby Mode: System ready but not actively heating.
4. Diagnostic Mode: Service technicians can access advanced settings and error history.
5. Smart Recovery: Learns heating patterns to reach setpoint at scheduled times.

WARNING! Never block air vents or returns; maintain proper airflow for safe operation.

Safety Features

Flame Rollout Switches: Shut off gas if flame detected outside burner area. Pressure Switches: Verify proper venting before ignition. Limit Switches: Prevent overheating. Ignition Lockout: Prevents repeated ignition attempts. Carbon Monoxide Detection: Compatible with external CO detectors.

Maintenance & Cleaning

Turn off power and gas supply before maintenance. Replace air filter monthly during heating season. Annual professional inspection recommended.

CAUTION! Do not attempt to clean heat exchanger or burners yourself. Contact qualified technician for internal cleaning.

Regulatory Information

ANSI Z21.47: Certified for gas-fired central furnaces. UL 1995: Standard for heating and cooling equipment. Energy Star: Compliant with energy efficiency standards. For technical support, visit www.monarchheating.com or contact 1-800-555-HEAT. Installation must comply with National Fuel Gas Code and local regulations.

Troubleshooting

Reset: Power cycle furnace; check diagnostic LED for error codes.

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