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Retro-DWS ®
Brand: Heat-LineThe Retro-DWS in pipe heating cable is a job-ready, pre-assembled self-regulating system that is a safe and reliable solution for prevention of non-pressurized frozen sewer pipes.
This includes but is not limited to storm drains, culverts, waste and sewer pipe systems consisting of all pipe types including all metallic and non-metallic materials.
Dealing with frozen sewer pipes on a regular basis will no longer be an issue.
The Retro-DWS is manufactured using a pre-determined length of Heat-Line certified, self-regulating trace heating cable, factory-installed inside a ½ inch HDPE tube finished with a proprietary fusion end-seal.
The purpose of the HDPE tube is to provide a barrier from fluids such as grey and black water while providing extremely efficient heat transfer.
The system will easily push inside most pipes for distances up to and greater than 150 feet (46 meters). For long distances, Retro-DWS can be drawn in with an electrical or plumbers fish tape or rope.
The Retro-DWS is supplied with certified plumbing fittings to interface with 3 inch and 4 inch ABS pipes using an existing or installed clean-out, Tee or Wye as an access point.
The versatile interface process of the Retro-DWS makes the system suitable for installation in pipe diameters from 3 inches to greater than 8 inches.
The Retro-DWS can be easily adapted to fit larger pipe diameters by using readily available, industry standard components.
In larger pipe applications, Retro-DWS is designed to provide a melt-water path, thus allowing continuous flow through the entire channel.
This allows the fluids to carve their way through large diameter culverts or drains without having to install energy-expensive high watt density heat trace cables.
For large pipe diameters please review Retro-DWS “other methods” in the installation manual.
Even in applications where the pipes are intended to be dry for short or extended periods of time, the Retro-DWS presents no danger of overheating or melting the pipe, making it suitable for all metal and non-metal drain lines that do not always contain liquids.
Retro-DWS can be used as a system to prevent freezing or as a precautionary system to use only if a freeze-up occurs.
The Retro-DWS is a fully serviceable product. If a blockage occurs, the entire heat system can be removed and re-installed.
Retro-DWS employs the unique and advanced performance of self-regulating heat trace cable technology.
Constructed of self-regulating heat cable technology the Retro-DWS can effectively increase heat and energy output to sections along its length which are cold and simultaneously reduce heat and energy output to sections that are warm.
You never have to worry about the Retro-DWS heating cable overheating causing a risk of melting and fire because of the self-regulating heating cable technology.
Retro-DWS gives you the peace of mind of reliable freeze protection without the risk.
It has become an essential product for homeowners, engineers and building maintenance professionals to provide safe and reliable freeze protection in specialized applications.
To further increase the energy efficiency of your Retro-DWS heating cable system, it is recommended to add thermal insulation and a thermostat.
The additional thermal insulation works to reduce heat loss, and the thermostat allows you to duty cycle your Retro-DWS system based on external pipe temperature.
Both accessories combined can increase energy efficiency by as much as 80%.
Features- 5 year limited warranty, 10 year extended warranty available
- Can be installed inside metallic and non-metallic pipes
- Provides reliable freeze protection for many pipe diameters
- Easily and quickly installed in most existing pipes without their removal
- Will never melt or burnout the pipe, even if the pipe is dry
- Can be fully insulated to increase energy efficiency
- Can be used with various control devices including timers and thermostats
- Ease of installation can be pushed in up to 150 ft. (46m) and sometimes greater
- Long systems can be drawn in with electrical or plumbing fish tape or rope
- Suitable for above ground applications when properly insulated
- No need to excavate below the frost line
- Supplied job-ready, no additional electrical work required
- Can fit existing pipes 3 inches ID and greater
- Available in 10ft. (3m) increments to a maximum length of 540 ft. (165m), custom lengths are available
Specifications
Brand
Approvals
- cCSAus approved (Canada and USA) LR85446
- Usage Type W Canada
- Installation Type D USA
- Internal waste (Grey and Black) water certified
Electrical Specifications
- Self-Regulating/Conductive Polymer Tubular Heater
- 120 Volt systems - 5 watt /ft. at 50° F (10° C), Max. length 230 ft. (70 m)
- 240 Volt systems - 5 watt /ft. at 50° F (10° C), Max. length 540 ft. (165 m)
- 120 Volt GFC models - 4 ft. (1.2 m) power supply lead with 27 milliamp ground fault circuit interrupter plug-in device
- 240 Volt GFC models - 6 ft. (1.8 m) Power Supply lead with 27 milliamp ground fault circuit interrupter plug-in device
- CS models - 6 ft. (1.8 m), 12- 14 AWG SJEOOW Supply cord for direct hardwire Connection, GFCI must be field installed
Plumbing Specifications
- Tubular Heater constructed of 1/2 inch I.D. chemical resistant HDPE
- Minimum internal pipe size Required is 3 inch I.D. or greater
- Supplied with Female Fernco flexible couples to Adapt to 3 inch and 4 inch ABS pipe and Spigots
- Supplied with Nibco 3 inch and 4 inch threaded Male Adapters SPIG x MIPT for Connection to 3 inch and 4 inch ABS Clean-outs
- Suitable for both metallic and Non-metallic piping
Retro-DWS is an internal heat tracing system designed to provide reliable freeze protection of metallic and non-metallic pipes. Examples include but are not limited to
- Existing sewage, septic and effluent pipes
- Existing storm drains and culverts
- Existing/New septic and holding tanks
- Existing/New leech fields and septic beds
Retro-DWS can be found providing freeze protection in many of the following places
- Lake homes and cottages
- Commercial/ Industrial buildings
- Septic tanks/ leach fields in northern communities