Honeywell Q314A4586 Pilot Burner Instruction Manual

1. Introduction

This manual provides essential information for the safe and correct installation, operation, and maintenance of the Honeywell Q314A4586 Pilot Burner. This pilot burner is designed for use with natural gas and propane heating systems. Please read all instructions thoroughly before proceeding with installation or service.

The Honeywell Q314A4586 is a standing pilot burner assembly featuring a B-style mounting bracket. It includes interchangeable, color-coded orifices and inlet fittings for conversion between natural gas and LP gas applications. This unit is compatible with Q309, Q340, Q390 thermocouples or Q313 thermopiles.

2. Important Safety Information

WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.

• Installation and service must be performed by a qualified installer, service agency, or gas supplier.
• Ensure all gas and electrical supplies are disconnected before beginning any work on the appliance.
• Always check for gas leaks after installation or service using a non-corrosive leak detection fluid.
• Do not use matches, lighters, or other ignition sources to check for gas leaks.
• Verify that the correct orifice is installed for the type of gas being used (natural gas or propane).
• Follow all local codes and regulations.

3. Product Overview

The Honeywell Q314A4586 Pilot Burner is a critical component in many gas-fired heating systems, responsible for igniting the main burner. It is designed for reliability and ease of conversion between different gas types.

Figure 1: Honeywell Q314A4586 Pilot Burner. This image shows the complete pilot burner assembly, including the B-bracket, pilot hood, and gas inlet fittings.

Included Components:

• Pilot Burner Assembly (Q314A4586)
• 1/4 inch Compression Coupling (CC) Inlet Fitting
• Special Mounting Bracket with Screws (for converting "B" bracket to "A" if needed)
• Natural Gas Orifice (0.018 inch diameter)
• LP Gas Orifice (0.010 inch diameter)

4. Specifications

Figure 2: Honeywell Q314A4586 Pilot Burner with approximate dimensions indicated. The image shows the component with labels for 1", 2", and 3" measurements, providing a visual reference for its compact size.

5. Installation

Installation should only be performed by a qualified technician. Ensure all safety precautions are followed before beginning.

5.1 Pre-Installation Checks:

• Verify that the Q314A4586 is the correct replacement part for your appliance.
• Confirm the type of gas used by your appliance (natural gas or LP gas).
• Ensure the appropriate orifice (0.018" for natural gas, 0.010" for LP gas) is installed in the pilot burner. The orifices are interchangeable and color-coded.
• Gather necessary tools, including wrenches, screwdrivers, and leak detection fluid.

5.2 Installation Steps:

1. Disconnect Power and Gas: Turn off the main gas supply to the appliance and disconnect all electrical power.
2. Remove Old Pilot Burner: Carefully disconnect the pilot gas line, thermocouple/thermopile, and igniter wire (if applicable) from the old pilot burner. Remove the mounting screws and extract the old assembly.
3. Install New Pilot Burner:
   • If converting from an "A" bracket, use the included special mounting bracket and screws to adapt the Q314A4586.
   • Position the new Q314A4586 pilot burner in the appliance's pilot bracket location and secure it with screws.
4. Connect Gas Line: Connect the 1/4 inch compression coupling (CC) inlet fitting to the pilot gas line. Ensure a tight, leak-free connection.
5. Connect Thermocouple/Thermopile: Attach the compatible thermocouple (Q309, Q340, Q390) or thermopile (Q313) to the designated port on the pilot burner. Ensure it is securely fastened and positioned correctly to be enveloped by the pilot flame.
6. Reconnect Power and Gas: Restore the main gas supply and electrical power to the appliance.
7. Check for Leaks: Apply a non-corrosive leak detection fluid to all gas connections. Bubbles indicate a leak. If a leak is detected, immediately shut off the gas supply and tighten connections until no leaks are present.
8. Test Operation: Follow the appliance manufacturer's instructions for lighting the pilot and main burner to ensure proper operation.

6. Operation

Once installed and checked for leaks, the pilot burner's operation is typically integrated with the appliance's control system. The primary function of the pilot burner is to provide a continuous small flame that ignites the main burner when heat is called for.

6.1 Pilot Lighting Procedure:

Refer to your specific appliance's instruction manual for the exact pilot lighting procedure. Generally, it involves:

1. Turning the gas control knob to the "PILOT" position.
2. Depressing the knob to allow gas flow to the pilot.
3. Igniting the pilot flame using the igniter button or a long match/lighter.
4. Holding the knob down for a specified period (e.g., 30-60 seconds) to allow the thermocouple/thermopile to heat up and generate enough voltage to hold the pilot valve open.
5. Releasing the knob and verifying the pilot flame remains lit.
6. Turning the gas control knob to the "ON" position to allow the main burner to operate.

The pilot flame should be stable, blue, and completely envelop the tip of the thermocouple/thermopile for proper operation and safety.

7. Maintenance

Regular maintenance ensures the longevity and safe operation of your heating system. It is recommended to have your heating system, including the pilot burner, inspected annually by a qualified service technician.

7.1 Recommended Maintenance:

• Pilot Flame Inspection: Periodically observe the pilot flame. It should be a steady, blue flame that fully engulfs the thermocouple/thermopile tip. A weak, yellow, or wavering flame may indicate a problem.
• Cleaning: Over time, dust and debris can accumulate around the pilot burner and orifice, potentially affecting flame quality. With the gas and power off, gently clean the pilot hood and orifice area using a soft brush or compressed air. Do not use sharp objects to clean the orifice.
• Thermocouple/Thermopile Check: Ensure the thermocouple/thermopile is securely connected and its tip is properly positioned in the pilot flame. A faulty or improperly positioned thermocouple/thermopile is a common cause of pilot outage.
• Gas Line Inspection: Check the pilot gas line for any signs of damage or corrosion.

If you notice any persistent issues or changes in pilot burner performance, contact a qualified service technician.

8. Troubleshooting

This section addresses common issues you might encounter with the pilot burner. For complex problems, always consult a qualified service technician.

9. Warranty and Support

For warranty information and technical support regarding your Honeywell Q314A4586 Pilot Burner, please refer to the documentation provided with your specific heating appliance or contact Honeywell customer service directly. Ensure you have the model number (Q314A4586) and any relevant appliance information available when seeking support.

You can visit the official Honeywell website for contact details and further product information: www.honeywellhome.com