KING SRP126-6 - User Manual

SRP Pre-assembled Self-regulating Cable
DESCRIPTION:
SRP self-regulating pre-assembled heating cables are
designed for a variety of pipe freeze protection as well as roof
and gutter deicing applications. The heat output (wattage)
increases and decreases based on the temperature, so the
cable adjusts automatically to varying climate conditions. This
unique feature ensures maximum energy efficiency by
increasing the heat output only when it is needed. No
thermostat is required.
SRP CABLE FEATURES:
- Rated 6 watts/foot at 40º F, (4º C) for pipe freeze protection.
- Rated 8 watts/foot at 32º F, (0º C) for roof and gutter deicing.
- 30 inch power lead with grounded plug.
- Pre-terminated with 30 inch 120V cord with plug and end
splice.
- Suitable for use on metal and plastic pipes.
- Suitable for metallic and nonmetallic gutters and downspouts.
- Cable will not overheat or burnout when overlapped.
- 16 gauge heating cable bus wire.
- 2 year warranty.
SRP CABLE KIT CONTAINS:
• SRP pre-assembled electric heating cable
• Roof and gutter caution labels
• Pipe trace caution labels
Cable Construction
Model Volts
Pipe
Rating
Deicing
Rating
Length
SRP126
-6 120V
36 watts
48 watts 6 ft.
SRP126
-12 120V
72 watts
96 watts 12 ft.
SRP126
-18 120V
108 watts
144 watts 18 ft.
SRP126
-24 120V
144 watts
192 watts 24 ft.
SRP126
-50 120V
300 watts
400 watts 50 ft.
SRP126
-75 120V
450 watts
600 watts 75 ft.
SRP126
-100 120V
600 watts
800 watts 100 ft.
CAUTION:
1.Heating cables must be installed in compliance with the
national electric code (NEC) in addition to state, provincial and
local codes. Check with your local inspector for specific code
requirements (or regulations or standards) in your area.
2.Save these instructions and transfer them to future owner(s).
3.Never install on pipes that could potentially exceed 150º F,
(65º C).
4.Not for use with an extension cord.
5. Not for use with indoor pipes. Cable should not run through the
building walls, ceilings or floors.
6.For safety, King recommends that all heating cables are placed
on a Ground Fault Equipment Protection (GFEP) circuit.
Consult your local electrical inspector to determine the specific
requirements in your area.
7.Do not cut or alter the length of the cable in any way. Any
alteration may result in electrical shock or fire.
8.Post warning labels supplied with the cable at the power supply
and along the pipe on the outside of the insulation.
9.Do not bend the cable to less than a 1/2” radius.
10.Do not Install cable on shingle roofs in freezing temperatures;
as this may cause damage to the shingles.
11.Cables are intended for freeze protection of water pipes only.
Not intended for use with other liquids or hazardous materials.
12. For installation in accessible areas only.
Installation, Operation and Maintenance Instructions
King Electrical Mfg. Company will repair or replace, without charge to the original owner, any heating cable found to be defective or malfunctioning within the 2 year warranty.
In Case of Product Failure: Contact King Electrical Mfg. Co. at 800.603.5464. The owner will be required to provide, within the designated warranty period, the following
information: model number, date of purchase, and a complete description of the problem encountered with product. Upon receipt of the aforementioned, the company will
reply to the owner within a period not to exceed fifteen (15) working days, and will provide the action to be taken by owner. Terms: This warranty requires the owner or his
agent install the equipment in accordance with the National Electrical Code, any other applicable heating or electrical codes and the manufacturer's installation instructions. It
further requires that reasonable and necessary maintenance be performed on the unit. Failure of proper maintenance by owner will void the warranty in its entirety. The
company is not liable for any actions it deems to be abuse or misuse of the product. The customer shall be responsible for all costs incurred in the removal or reinstallation of
products, including, but not limited to, labor costs, and shipping costs incurred to return products to King Manufacturing. At their discretion, King Manufacturing will decide to
either repair or replace the product, with no charge to the owner, with return freight paid by King. The Company shall not be liable for consequential damages arising with
respect to the product, whether based upon negligence, tort, strict liability or contract. No other written or oral warranty applies, nor any warranties by Representatives,
Dealers, Employees of King or any other person. King Manufacturing can be contacted by phone at 206.762.0400, fax 206.763.7738 or website www.king‐electric.com.The
company's minimum liability shall not in any case exceed the list price for the product claimed to be defective.
Warranty Information:
IMPORTANT: Save These Instructions!
Rev 8.28.12
www.king-electric.com 1

Summary

Installation, Operation and Maintenance Instructions

Heating Cable Installation

General Information for Roof and Gutter Deicing

Selecting Heating Cable Length for Roof and Gutter Deicing

Guide to calculating required heating cable length for roof and gutter deicing applications using formulas.

Installing the Cable in Gutters and Downspouts

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features
5. Warranty

The King Electrical Mfg. Company's SRP Pre-assembled Self-regulating Cable is designed for pipe freeze protection and roof and gutter deicing applications. This heating cable automatically adjusts its heat output (wattage) based on temperature, ensuring maximum energy efficiency by only increasing heat when needed, thus eliminating the need for a thermostat.

Function Description:

The SRP cable prevents water pipes from freezing and helps melt ice and snow from roofs and gutters. Its self-regulating nature means the conductive core increases heat output in colder temperatures and decreases it as temperatures rise. This dynamic adjustment optimizes energy consumption. For pipe freeze protection, the cable is rated at 6 watts per foot at 40°F (4°C). For roof and gutter deicing, it's rated at 8 watts per foot at 32°F (0°C). The cable is pre-assembled with a 30-inch 120V cord, a grounded plug, and an end splice, making installation straightforward.

Important Technical Specifications:

• Voltage: 120V
• Cable Construction: Features an outer jacket, braid, inner jacket, self-regulating conductive core, and bus wires.
• Bus Wire Gauge: 16 gauge.
• Power Lead: 30-inch, pre-terminated with a grounded plug.
• Minimum Bending Radius: 1/2 inch.
• Temperature Rating: Not for use on pipes that could exceed 150°F (65°C).
• Pipe Freeze Protection Ratings (at 120V):
  • SRP126-6: 36 watts (6 ft length)
  • SRP126-12: 72 watts (12 ft length)
  • SRP126-18: 108 watts (18 ft length)
  • SRP126-24: 144 watts (24 ft length)
  • SRP126-50: 300 watts (50 ft length)
  • SRP126-75: 450 watts (75 ft length)
  • SRP126-100: 600 watts (100 ft length)
• Deicing Ratings (at 120V):
  • SRP126-6: 48 watts
  • SRP126-12: 96 watts
  • SRP126-18: 144 watts
  • SRP126-24: 192 watts
  • SRP126-50: 400 watts
  • SRP126-75: 600 watts
  • SRP126-100: 800 watts
• Insulation Requirements: Minimum 1/2" thick preformed foam or equivalent thermal insulation for temperatures down to 0°F (-18°C). Use 1" thick insulation for temperatures down to -20°F (-29°C).
• Safety: King recommends placement on a Ground Fault Equipment Protection (GFEP) circuit.

Usage Features:

• Versatility: Suitable for use on metal and plastic pipes, as well as metallic and nonmetallic gutters and downspouts.
• Self-Regulating: Automatically adjusts heat output based on ambient temperature, eliminating the need for a thermostat and maximizing energy efficiency.
• Overlap Safe: The cable will not overheat or burn out when overlapped, simplifying installation.
• Installation Methods:
  • Straight Tracing: Cable is installed on the lower half of the pipe (e.g., 4 o'clock or 8 o'clock position).
  • Spiral Tracing: Cable is wrapped around the pipe in a spiral, particularly useful for longer pipe sections or when higher heat output is needed. Loops of cable are suspended every 10 feet and then wrapped around the pipe.
  • Roof and Gutter Installation: Cable is looped on the roof overhang and connected to the cable running in the gutter to create drainage channels for melting ice. Specific tracing heights are provided for shake/shingle and metal seam roofs.
• Accessories: The SRP cable kit includes roof and gutter caution labels and pipe trace caution labels. King-approved accessories like SR1K5 Downspout hanger brackets and SRK13 Roof clips are recommended for proper installation and warranty validity.
• Accessibility: Designed for installation in accessible areas only.
• Code Compliance: Must be installed in compliance with the National Electrical Code (NEC) and local codes. For Canadian installations, Part 1, Section 62 of the Canadian Electrical Code (CEC) must be followed.
• Warning Labels: Supplied warning labels must be posted at the power supply and along the pipe insulation to indicate the presence of the electric pipe heating system.

Maintenance Features:

• Pre-Installation Inspection: Before installation, verify the cable's length, wattage, and voltage. Inspect the piping system for cleanliness, dryness, and absence of sharp edges.
• Post-Installation Inspection: Before insulating, inspect the heating cable for any damage incurred during installation.
• Megohmmeter Testing: After installation, and during regular maintenance, check the resistance between power prongs and the ground prong using a 2500-volt DC megohmmeter. The minimum reading should be 1000 megohms. Record initial values and compare subsequent readings. If readings fall below 1000 megohms, the cable must be replaced. Do not attempt to repair damaged cable.
• Annual Cleaning: Annually, before winter, ensure gutters and downspouts are free of leaves and other debris.
• Ground Fault Circuit Test: Regularly test the ground fault circuit to ensure it is functioning properly. Replace if malfunctioning.
• Circuit Breaker Check: Verify the circuit breaker to ensure power is supplied to the cable.
• No Repair Policy: Damaged heating cable should not be repaired; it must be immediately removed and replaced with a new unit to prevent fire and shock hazards.

Warranty:

King Electrical Mfg. Company offers a 2-year warranty. The company will repair or replace any defective or malfunctioning heating cable within this period. The warranty requires installation in accordance with the National Electrical Code, other applicable codes, and manufacturer's instructions, as well as reasonable and necessary maintenance. Failure of proper maintenance or abuse/misuse voids the warranty. The customer is responsible for removal, reinstallation, labor, and shipping costs for returns. The company's liability is limited to the list price of the defective product.

KING SRP126-6 Specifications

General

Brand	KING
Model	SRP126-6
Category	Cables and connectors
Language	English