Dayton Furnace Owners Manuals

The Dayton furnace series includes high-efficiency gas and electric furnaces designed for residential and light commercial applications. These furnaces feature advanced heating technology, energy-efficient operation, multiple heating stages, variable-speed blowers, durable heat exchangers, digital controls, safety shut-off systems, and compatibility with various thermostat systems. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: High-efficiency heat exchanger, multi-speed blower motor, electronic ignition system, gas valve assembly, pressure switches, limit controls, control board, and filter access panel.

Installation Guidelines

Professional installation recommended. Unpack and inspect all components before beginning.

1. Location selection: Choose well-ventilated area with proper clearances (minimum 1 inch from combustible materials).
2. Gas line connection: Use approved gas piping materials; pressure test for leaks.
3. Electrical wiring: Connect to proper voltage (120V AC); install dedicated circuit if required.
4. Venting system: Install according to local codes and manufacturer specifications.
5. Ductwork connection: Ensure proper sizing and sealing of supply/return ducts.

WARNING! Gas furnaces produce carbon monoxide; proper venting is critical. Only qualified technicians should perform installation.

First-Time Setup

Complete system commissioning after installation.

1. Gas pressure adjustment: Set manifold pressure to specifications on rating plate.
2. Blower speed settings: Adjust dip switches for proper airflow (heating/cooling modes).
3. Thermostat configuration: Program heating stages and fan control parameters.
4. Combustion analysis: Verify proper fuel-air mixture and efficiency.
5. System testing: Run through complete heating cycle to verify operation.

CAUTION! Never bypass safety controls. Ensure all access panels are properly secured after service.

Technical Specifications

• Heating Capacity: 40,000 to 120,000 BTU/h depending on model
• Efficiency Rating: 80% to 96% AFUE
• Stages: Single-stage, two-stage, or modulating operation
• Blower Type: Multi-speed or variable-speed ECM
• Electrical Requirements: 120V AC, 60Hz, 15A circuit
• Gas Type: Natural gas or propane (conversion kit required)
• Venting: Category I (natural draft) or Category IV (direct vent)
• Sound Rating: As low as 65 dB operation
• Warranty: Limited lifetime heat exchanger, 10 years parts

Controls and Settings

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

Control Board: POWER switch, STATUS LED, DIP switches for configuration, service test mode.

Heating Settings: Temperature rise adjustment, blower delay timing, stage operation sequencing. Fan Control: Continuous fan speed, heating/cooling airflow rates, thermostat-controlled operation. Safety Settings: High-limit temperature, pressure switch verification, flame sensor monitoring, rollout switch protection.

Venting and Ductwork

Proper venting is essential for safe operation and efficiency.

1. Vent pipe sizing: Follow manufacturer specifications for diameter and length.
2. Vent material: Use approved materials (PVC, CPVC, or metal) as required.
3. Duct sizing: Calculate according to Manual D for optimal airflow.
4. Airflow balancing: Adjust registers for even temperature distribution.
5. Combustion air: Ensure adequate fresh air supply for proper combustion.

Tip: Regular inspection of venting system prevents blockages and maintains efficiency.

Operating Procedures

Daily operation through thermostat control.

1. Startup: Set thermostat to desired temperature; system initiates heating sequence.
2. Normal operation: Furnace cycles automatically to maintain setpoint temperature.
3. Stage operation: Multi-stage units modulate output for comfort and efficiency.
4. Fan operation: Auto mode with heating cycle or continuous circulation.
5. Shutdown: Thermostat satisfied or manual shutoff at thermostat.
6. Seasonal startup: Annual inspection recommended before heating season.
7. Extended absence: Set thermostat to minimum temperature (55°F) to prevent freezing.

WARNING! Never store combustible materials near furnace. Keep area clear for proper airflow and service access.

Maintenance Schedule

Regular maintenance ensures optimal performance and longevity.

Safety Features

Multiple safety systems protect against hazardous conditions.

• Flame rollout switches: Detect improper burner combustion
• High-limit switches: Prevent overheating conditions
• Pressure switches: Verify proper venting operation
• Flame sensors: Ensure gas valve closure if no flame
• Ignition control: Limited trial-for-ignition period
• Gas valve: Automatic shutoff during power interruption

CAUTION! Install carbon monoxide detectors near sleeping areas when using gas appliances.

Regulatory Information

UL certified for safety standards. ANSI Z21.47 compliant for gas-fired central furnaces. Meets DOE energy efficiency standards. CSA International certified for Canadian markets. All furnaces must be installed according to National Fuel Gas Code (NFPA 54) and local building codes. For technical support, contact Dayton Customer Service at 1-888-DAYTON1 or visit www.dayton.com.

Troubleshooting Guide

Reset Procedure: Turn power off for 30 seconds, then restore. Check error codes if problem persists.

Service: 1-888-DAYTON1; www.dayton.com - Always use qualified HVAC technicians for repairs.