
Standard Cleanout
Requiring Extension
4" example pg 3
3" example pg 5
Installing Into a
Damaged Cleanout
4" example pg 7
3" example pg 9
Flexible Wye Tap
Saddle Installations
Example pg 13
Cutting in a Wye
4" example pg 11
Kit Description
Retro-DWS is a tubular self-regulating heating system designed for use in
4-inch and 3-inch non-pressurized sewage and waste water drain lines, as well
as other large diameter non-pressurized pipes and storm drains. The tubular
heater is constructed of HDPE (high density polyethylene) and will push inside
most pipes for long distances. They can also be drawn in with an electrical or
plumbers fish tape.
Retro-DWS utilizes a conductive polymer tubular heater technology which
provides a barrier from the fluids while providing extremely efficient freeze
protection. Retro-DWS can be used as a system to prevent freezing or as a
precautionary system. If the drain waste or sewer freezes, the system can
be energized to begin the thawing process.
Typical Retro-DWS-GFC supplied with a 4 foot electrical cold lead. Available with
Ground-Fault Protection (GFCI) or Cord-Set (CS) both in 120 volt and 240 volt.
Approvals
Usage Type W
Installation Type D USA
Table of Contents
General Information . . . . . . . . . . . . . . . . . . . . . . . . 1
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Kit Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Ordering Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Optional Accessories. . . . . . . . . . . . . . . . . . . . . . . . 2
Standard 4-inch Cleanout Requiring Extension . . . . . . . . . . . 3
Standard 3-inch Cleanout Requiring Extension . . . . . . . . . . . 5
Installing Into a Damaged 4-inch Cleanout . . . . . . . . . . . . . 7
Installing Into a Damaged 3-inch Cleanout . . . . . . . . . . . . . 9
Cutting in a 4-inch Wye . . . . . . . . . . . . . . . . . . . . . .11
Non-Pressurised Flexible Wye Tape Saddle Installations . . . . . .13
Important Safety Instructions and Rules for safe
Installation and Operation
FIRE AND SHOCK HAZARD.This component is an electrical
device which must be installed properly. Read and follow
these rules and instructions carefully. Failure to follow them
could result in serious bodily injury and/or property damage.
WHEN PERFORMING WORK OR REPAIRS ON YOUR
WATER SYSTEM BE SURE TO UNPLUG YOUR HEAT-LINE
SYSTEM FROM THE POWER SUPPLY.
• Check your local building, plumbing and electrical codes
before installing. You must comply with their rules.
• Retro-DWS meets cCSAus codes for use in Canada and
the United States.
• Before installing this product have the electrical outlet
checked by an electrician to make sure it is properly
installed and grounded in accordance with your local
Electrical Code.
• Before installing or servicing your Retro-DWS BE
CERTAIN that the power source is disconnected.
• Do not use extension cords.
• This product is designed to keep drains from freezing
in serious climate conditions. The Retro-DWS tube may
obstruct certain materials, especially solids in the drains
so a service schedule for proper maintenance is recom-
mended. The use of this product is at the sole discretion
of the user. Heat-Line will not be liable for obstructions
or blockages that may occur in some situations.
• Never tamper with or alter the electrical apparatus associ-
ated with your Heat-Line system.
• The Retro-DWS product is exclusively designed to be
employed in non-pressurized plumbing drain, waste, and
sewer pipe applications. It is not designed to be installed
or operated in a pressurized application.
Retro-DWS®—Other Methods
Internal Heating Cable System for Sewer Pipe
and Waste Drain Applications
Installation Instructions
For common installation methods including complete installation procedures
and warranty refer to the standard Retro-DWS Installation Instructions. This is
a conceptual installation guide for other, non-common applications. Material
selection is an advisement based on information provided by others. The
customer/end user has the responsibility to make the final decision on the
suitability of the component selection for their application. The directions and
additional material presented within this document is done so in good faith and
is believed to be reliable and accurate.