Raypak 266,000 BTU Natural Gas Millivolt Pool Heater User Manual

1. Introduction

This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Raypak 266,000 BTU Natural Gas Millivolt Pool Heater. This unit is designed for residential use only and operates without requiring an external power source, utilizing a millivolt ignition system. Please read all instructions carefully before attempting to install or operate the heater.

2. 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.

• Always ensure the heater is installed by a qualified professional in accordance with all local codes and ordinances.
• Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
• Ensure adequate ventilation around the heater to prevent the accumulation of combustible gases.
• Keep the area around the heater clear and free from combustible materials, debris, and obstructions.
• Never operate the heater if any part has been submerged in water. Immediately call a qualified service technician to inspect the heater and replace any part of the control system and any gas control that has been submerged in water.

3. Product Overview

The Raypak 266,000 BTU Natural Gas Millivolt Pool Heater is engineered for durability and performance. It features a robust design with a PolyTuf Textured powder coating for enhanced protection against the elements. The internal components, including polymer headers and an all-copper-fin-tube heat exchanger, are non-corrosive and rust-resistant, ensuring maximum heat transfer and longevity.

Key features include:

• Millivolt Ignition System: Operates independently without external electrical power, generating its own current via a small thermocouple and constant pilot light.
• Wind Resistant Design: Protects the unit from environmental factors such as snow, sleet, wind, and falling debris.
• Durable Construction: Features PolyTuf Textured powder coating, polymer headers, all copper-fin-tube heat exchanger, and a stainless steel tube sheet.
• Simple Controls: A mechanical thermostat allows for precise temperature setting.

4. Setup and Installation

Installation of this natural gas pool heater requires specialized knowledge and should only be performed by a qualified and licensed professional. This includes all gas, water, and venting connections.

4.1 Site Selection

Choose a location that provides adequate clearance for maintenance, proper ventilation, and protection from severe weather conditions. Ensure the heater is installed on a level, non-combustible surface.

4.2 Gas Connection

The heater requires a natural gas supply. All gas piping must comply with local codes and the manufacturer's specifications. A manual gas shut-off valve must be installed upstream of the heater.

4.3 Water Connections

The heater is equipped with 2-inch CPVC water connections. Ensure proper plumbing to and from your pool's filtration system. Install unions on both the inlet and outlet for ease of service.

4.4 Venting

Proper venting is crucial for safe operation. Consult the installation diagram and local codes for correct vent pipe sizing and installation.

5. Operating Instructions

The Raypak millivolt heater is designed for straightforward operation once properly installed.

5.1 Initial Startup

1. Ensure all gas and water connections are secure and leak-free.
2. Turn on the gas supply to the heater.
3. Verify that the pool pump is running and water is flowing through the heater.
4. Locate the pilot light assembly. The millivolt system uses a constant pilot light. Follow the lighting instructions provided on the heater's data plate or in the detailed installation manual for your specific model to ignite the pilot.
5. Once the pilot is lit, the thermocouple will generate the necessary current to open the main gas valve.

5.2 Setting the Temperature

The heater features a mechanical thermostat. To set your desired pool temperature:

1. Locate the temperature dial or knob on the control panel.
2. Rotate the dial to your desired temperature setting. The heater will automatically cycle on and off to maintain this temperature.

6. Maintenance

Regular maintenance ensures the longevity and efficient operation of your pool heater. Always disconnect the gas supply before performing any maintenance.

• Annual Inspection: Have a qualified service technician inspect the heater annually, preferably before the swimming season begins. This includes checking the heat exchanger, burner assembly, and gas connections.
• Keep Clear: Ensure the area around the heater is free from leaves, debris, and other obstructions that could block airflow or pose a fire hazard.
• Water Chemistry: Maintain proper pool water chemistry (pH, alkalinity, calcium hardness) to prevent scaling and corrosion within the heat exchanger.
• Winterization: In colder climates, properly winterize the heater by draining all water to prevent freeze damage. Consult a professional for proper winterization procedures.

7. Troubleshooting

Before calling for service, review the following common issues and solutions. For complex problems, always contact a qualified service technician.

7.1 Heater Not Firing

• No Gas Supply: Check if the main gas valve to the heater is open.
• Pilot Light Out: Re-ignite the pilot light following the instructions in Section 5.1.
• Low Water Flow: Ensure the pool pump is running and there is adequate water flow through the heater. Check for clogged filters or closed valves.
• Thermostat Setting: Verify the thermostat is set above the current pool water temperature.

7.2 Insufficient Heating

• Incorrect Thermostat Setting: Adjust the thermostat to a higher temperature.
• Heat Loss: Consider using a pool cover to reduce heat loss, especially overnight.
• Heater Sizing: Ensure the heater is appropriately sized for your pool volume.

8. Specifications

9. Warranty and Support

For warranty information, please refer to the documentation included with your product at the time of purchase or visit the official Raypak website. For technical support, service, or to locate an authorized service provider, please contact Raypak customer service directly. Always provide your product model number and serial number when seeking support.