Raychem P000000879 Self-Regulating Heating Cable User Manual

1. Introduction

This manual provides essential information for the safe and effective installation, operation, and maintenance of your Raychem P000000879 Self-Regulating Heating Cable. Please read this manual thoroughly before installation and retain it for future reference.

The Raychem self-regulating heating cable is designed to prevent freezing in pipes and to de-ice roofs, gutters, and downspouts. Its self-regulating property means it automatically adjusts its heat output based on ambient temperature, providing energy-efficient freeze protection.

2. Safety Information

WARNING: Risk of electric shock. Installation must be performed by a qualified electrician in accordance with all national and local electrical codes.

• Always disconnect power before installing or servicing the heating cable.
• Do not overlap the heating cable on itself unless specifically instructed by the product's design for certain applications, as this can lead to overheating.
• Ensure the cable is properly grounded.
• Do not cut or splice the heating cable unless using approved Raychem connection kits.
• Protect the cable from mechanical damage.
• The cable is UL Listed and CSA Certified, indicating compliance with safety standards.

3. Product Overview

The Raychem P000000879 is a 50 ft. self-regulating heating cable designed for wet or dry mounting locations. It operates on 240VAC and provides 6 watts per foot at 40°F.

Figure 3.1: Cable Cross-Section. This image displays a cross-section of the Raychem self-regulating heating cable, illustrating its internal components including the conductive polymer core, bus wires, inner jacket, metallic braid, and outer jacket. This layered design ensures durability and efficient heat transfer.

Figure 3.2: Coiled Cable. This image shows the Raychem self-regulating heating cable coiled, highlighting its flexible black outer jacket and overall construction. The cable is ready for deployment in various applications.

Key Features:

• Self-Regulating: Automatically adjusts heat output based on ambient temperature.
• Versatile Application: Suitable for wet or dry mounting locations.
• Durable Construction: Designed for longevity in various environments.
• Certified Safety: UL Listed and CSA Certified.
• Length: 50 feet.
• Voltage: 240VAC.

4. Setup and Installation

Proper installation is critical for the performance and safety of the heating cable. Refer to the specific installation instructions provided with any Raychem connection kits or accessories used.

4.1. Pre-Installation Checks

• Verify the power supply voltage matches the cable's rating (240VAC).
• Inspect the cable for any visible damage. Do not install damaged cable.
• Ensure all necessary accessories (connection kits, attachment tape, insulation) are available.

4.2. Application Guidelines

This cable is suitable for:

• Pipe Freeze Protection: For lighter plastic or metal pipes up to 8 inches in diameter. Secure the cable along the pipe using approved attachment methods.
• Roof and Gutter De-icing: Install in roofs, gutters, downspouts, and roof drains to prevent ice dams and ensure proper water drainage. Follow specific patterns for roof and gutter applications to ensure effective coverage.
• Marine Applications: Suitable for marine environments where freeze protection is required.

4.3. Electrical Connection

• All electrical connections must be made by a qualified electrician.
• Connect the heating cable to a dedicated circuit protected by a Ground Fault Circuit Interrupter (GFCI) or Ground Fault Equipment Protector (GFEP).
• Ensure the maximum circuit length of 375 ft. is not exceeded for the specific cable type and breaker size.

5. Operating Principles

The Raychem self-regulating heating cable contains a conductive polymer core that increases its resistance as the temperature rises. This means:

• When the ambient temperature is cold, the core's resistance is low, and the cable produces more heat.
• As the temperature warms, the core's resistance increases, and the cable produces less heat.
• This automatic adjustment ensures optimal energy efficiency and prevents overheating.

The cable is designed to operate continuously during cold conditions or can be controlled by a thermostat for additional energy savings.

6. Maintenance

The Raychem self-regulating heating cable requires minimal maintenance once properly installed.

• Annual Inspection: Before the cold season, visually inspect the cable and its connections for any signs of damage, wear, or loose connections.
• GFCI/GFEP Test: Regularly test the GFCI/GFEP device protecting the circuit according to the manufacturer's instructions.
• Keep Clear: Ensure the cable is not covered by debris, leaves, or other materials that could impede heat dissipation or cause damage.

7. Troubleshooting

If the heating cable is not functioning as expected, consider the following:

• No Heat Output:
  • Check if the power supply is active.
  • Verify the GFCI/GFEP has not tripped. Reset if necessary.
  • Inspect for visible damage to the cable or connections.
  • Ensure the thermostat (if installed) is set correctly and functioning.
• Insufficient Heat:
  • Confirm the cable is properly insulated (for pipe applications).
  • Ensure the cable is correctly applied according to installation guidelines for the specific application.
  • Verify the ambient temperature is within the cable's operating range.

For persistent issues, contact a qualified electrician or Raychem customer support.

8. Specifications

9. Warranty and Support

For specific warranty information, please refer to the documentation provided with your purchase or visit the official Raychem website. For technical support or assistance with installation and troubleshooting, please contact Raychem customer service.

Manufacturer: RAYCHEM

UPC: 696333230148