Patented
LEVIT
ON
WARNING
TO
PR
OTEC
T AG
AINS
T
EL
ECT
RONI
C SHOCK
TES
T
BE
FORE
EA
CH
USE
.
1. PL
UG
INT
O RE
CEPT
ACL
E.
2. IF
LIGHT
IS NO
T ON,
PRES
S AN
D REL
EA
SE
RESE
T B
UT
TON - L
IGHT
S
HOUL
D COME ON
.
3. PR
ESS
TES
T B
UT
TON -
LIGH
T M
US
T GO
OF
F
4. P
RE
SS
AN
D REL
EA
SE
RESET
BUT
TON
AGAIN
FOR
USE.
DO N
OT US
E IF
TES
T FA
ILS
RAINPR
OO
F
DO
NO
T IMMERSE
1L37
10
TES
T
TES
T
RES
ET
RES
ET
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 core tube
is constructed of HDPE (high density polyethylene) and will push inside most
pipes for long distances. They can also be drawn in with a 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.
Retro-DWS is supplied with all of the necessary fittings to fit a 4-inch or 3-inch
pipe at a clean out or other entry point. The Retro-DWS can be easily adapted
to fit larger pipe diameters if required by using readily available, industry stan-
dard components.
Available with Ground-Fault Protection (GFCI) or Cord-Set (CS) both in
120 volt and 240 volt.
For installation of Retro-DWS into other applications refer to Retro-DWS
Other Methods document.
LEVIT
ON
WARNING
TO P
ROT
ECT
AG
AIN
ST
ELE
CTR
ONIC
SH
OCK
TES
T
BEF
ORE
EAC
H U
SE.
1. P
LUG
INT
O R
ECE
PTA
CLE
.
2. IF
LIG
HT IS
NO
T O
N,
P
RES
S AN
D R
ELE
ASE
R
ESE
T BU
TTO
N - L
IGH
T
S
HOU
LD C
OM
E O
N.
3. P
RES
S TE
ST B
UTT
ON -
LIG
HT M
UST
GO
OFF
4. P
RES
S AN
D R
ELE
ASE
R
ESE
T BU
TTO
N AG
AIN
FO
R U
SE.
DO N
OT U
SE IF
TES
T FA
ILS
RAIN
PRO
OF
DO N
OT IM
MER
SE
1L37
10
TE
ST
TE
ST
RES
ET
RE
SE
T
LEVIT
ON
WARNING
TO P
ROT
ECT
AG
AIN
ST
ELE
CTR
ONIC
SH
OCK
TES
T
BEF
ORE
EAC
H U
SE.
1. P
LUG
INT
O R
ECE
PTA
CLE
.
2. IF
LIG
HT IS
NO
T O
N,
P
RES
S AN
D R
ELE
ASE
R
ESE
T BU
TTO
N - L
IGH
T
S
HOU
LD C
OM
E O
N.
3. P
RES
S TE
ST B
UTT
ON -
LIG
HT M
UST
GO
OFF
4. P
RES
S AN
D R
ELE
ASE
R
ESE
T BU
TTO
N AG
AIN
FO
R U
SE.
DO N
OT U
SE IF
TES
T FA
ILS
RAIN
PRO
OF
DO N
OT IM
MER
SE
1L37
10
TE
ST
TE
ST
RES
ET
RE
SE
T
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 Instructions . . . . . . . . . . . . . . . 3
Standard 3-inch Cleanout Instructions . . . . . . . . . . . . . . . 5
Control Devices and Insulation Installation . . . . . . . . . . . . . 7
Electrical System Connection . . . . . . . . . . . . . . . . . . . 9
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . 10
Extended Warranty Application Form . . . . . . . . . . . . . . . . 11
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.
• Do not force the Retro-DWS into the pipe to the point
where the pipe creases and bends
• Do not install the Retro-DWS interface connection in a
manner which would render it non-serviceable.
• 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
®
Internal Heating Cable System for
Non-Pressurized Sewer and Waste Drain Pipes
Installation Instructions
