3M TTS-5-1-OJ User guide
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3M™Self-Regulating
Heat Tracing Cables
Application Guide
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2
3M Self-Regulating Heating Cables: Construction and Function
Introduction ............................................................................................................................................................................................. 4
Properties ................................................................................................................................................................................................. 4
Advantages .............................................................................................................................................................................................. 4
Construction ............................................................................................................................................................................................ 5
Application Map...................................................................................................................................................................................6-7
3M Self-Regulating Heating Cables: Ordering Information and Materials Guide
Pipe Freeze Protection Ordering Information and Basic Components: TTS™ Self-Regulating Heating Cable ................9-10
Pipe Freeze Protection Materials Guide: TTS™ Self-Regulating Heating Cable .........................................................................11
Introduction.......................................................................................................................................................................................................... 11
Creating a Materials List................................................................................................................................................................................... 11
Step 1: establish parameters..............................................................................................................................................................11-12
Step 2: select the proper TTS™ Self-Regulating Heating Cable............................................................................................12-14
Step 3: determine TTS™ Self-Regulating Heating Cable circuit lengths.............................................................................15-16
Step 4: choose TTS™ Self-Regulating Heating Cable installation accessories...................................................................... 16
Tips ..................................................................................................................................................................................................................16-17
Thermostatic Control................................................................................................................................................................................... 17-18
TTS™ Self-Regulating Heating Cable Pipe Freeze Protection Data Sheet............................................................................ 18-19
Roof and Gutter Snow and Ice Melting Ordering Information and Basic Components:
TTS™ Self-Regulating Heating Cable..........................................................................................................................................21-22
Roof and Gutter Snow and Ice Melting Materials Guide: TTS™ Self-Regulating Heating Cable ...........................................23
Introduction........................................................................................................................................................................................................ 23
Creating a Materials List................................................................................................................................................................................. 23
Step 1: determine level of protection .................................................................................................................................................. 23
Step 2: select the proper TTS™ Self-Regulating Heating Cable................................................................................................ 24
Step 3: specify locations for power connections ............................................................................................................................ 24
Step 4: choose TTS™ Self-Regulating Heating Cable installation accessories..................................................................... 24
Step 5: establish control method...................................................................................................................................................24-27
Tips .......................................................................................................................................................................................................................27
TTS™ Self-Regulating Heating Cable Roof and Gutter Snow and Ice Melting Data Sheet .....................................................28
Table of Contents
1
2
Pipe Freeze Protection
Roof and Gutter Snow and Ice Melting
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Table of Contents
3
Surface Snow and Ice Melting Ordering Information and Basic Components: KSR™ Self-Regulating Heating Cable......30
Surface Snow and Ice Melting Materials Guide: KSR™ Self-Regulating Heating Cable...........................................................31
Introduction......................................................................................................................................................................................................... 31
Creating a Materials List................................................................................................................................................................................. 32
Step 1: identify area requiring snow and ice melting ..................................................................................................................... 32
Step 2: determine level of protection required..........................................................................................................................32-33
Step 3: determine length of cable required and circuit lengths .......................................................................................... 33-34
Step 4: locate power connections and end terminations; lay out cable ........................................................................... 34-35
Step 5: establish control method to operate system...................................................................................................................... 36
Cable Spacing Selection Guide .............................................................................................................................................................36-37
KSR™ Self-Regulating Heating Cable Surface Snow and Ice Melting Data Sheet..............................................................37-38
Alternative accessories.................................................................................................................................. 39-42
Surface Snow and Ice Melting
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4
Advantages
Self-regulating heat output at any point
Cut to length at any point down the cable
Energy saving
Can overlap heating cable
Easy to install
Multi-use
Low investment
Reliable, long-term performance
TTS™ and KSR™ Self-Regulating Heating Cables consist of a conductive-polymer heating matrix extruded between
two parallel copper bus conductors. Heat is generated in the conductive polymer matrix when energized. The bus
conductors provide uniform voltage across the heating matrix by providing current down the entire length of the
cable. The conductive polymer matrix is irradiated with an electron beam to provide cross-linking and “lock in”
performance properties.
As the temperature increases, the electrical paths in the carbon-polymer heating matrix become longer and the
resistance of the heating element increases. This causes the heat output of the cable to decrease. As the temperature of
the heating matrix increases, the resistance of the heating matrix increases.
TTS™ and KSR™ Self-Regulating Heating Cables can adjust their output to the surrounding temperature down the cable
length. This adaptability to individual thermal conditions provides more heat where needed and can also reduce energy
consumption as the ambient temperature increases, reducing heating costs.
13M Self-Regulating Heating Cables
Construction and Function
Introduction
Properties
3M Canada and Thermon Manufacturing Company have entered into a strategic alliance to market the commercial line
of heat tracing products manufactured by Thermon. The alliance agreement provides 3M exclusive rights within Canada
to sell and market two distinct products: TTS™ and KSR™ Self-Regulating Heating Cables and Accessories.
Note: The agreement with the KSR™ Self-Regulating Heating Cables and Accessories is within commercial markets only.
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Construction
TTS™ and KSR™ Self-Regulating
Heating Cables consist of a
conductive-polymer heating
matrix between two parallel
bus conductors
.
number of parallel resistances.
Copper grounding braid serves as
a safety conductor.
The cable is quipped with an
outer protective jacket.
the cable can be
cut to any desired length
without changing TTS™ and
KSR™ Self-Regulating Heating
Cable properties.
provides a continuous
ground path.
the cable can respond
to the temperature conditions
and adjust the heat output at any
point of the cable.
helps to protect against
corrosion, chemicals, and adverse
environmental conditions.
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6
Legend
1
1
2
2
2
2
3
3
3
3
3
3M Self-Regulating Heat Tracing Cable Applications
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2
2
2
2
2
3
3
3
3
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8
Pipe Freeze
Protection
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23M Self-Regulating Heating Cables Ordering
Information and Materials Guide
Areas of Application
Description
Canadian Standards Association
Class I, Division 2, Groups A, B, C and D
Class II, Division 2, Groups F and G
Meets or exceeds - IEEE 515, 515.1 - UL 1588
CSA 130-16
Cut-to-length TTS™ Self-Regulating Heating Cables are designed to help provide freeze protection to metallic and
non-metallic piping. Whether the application is a small project or a complex network, designing an electric heat trace
system is easy with TTS™ Self-Regulating Heating Cable.
Please refer to the TTS™ Self-Regulating Heating Cables materials guide for Pipe Freeze Protection on pages 10-11 of
this catalogue for full details.
• Freeze protection or low-temperature maintenance
• Metallic or non-metallic piping tanks and equipment
•
• Water meters and outside pipes/taps
• Water pipes in unheated areas
• Sprinkler systems
• Refrigeration
* For a complete installation, add thermal insulation in pipe freeze applications.
TTS™ Self-Regulating Heating Cable for Pipe Freeze Protection
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10
Basic Components
A pipe freeze protection system that uses TTS™ Self-Regulating Heating Cable will typically include heating cable and
ordering information table below.
1Junction box appropriate for the application to be supplied by the installer.
Note: More power connection/end termination, and control options available – see the Alternative Accessories section.
Ref # Part # Description
Cable
1 TTS-5-1-OJ 5 W/FT @ 120 V
1 TTS-8-1-OJ 8 W/FT @ 120 V
1 TTS-10-1-OJ 10 W/FT @ 120 V
1 TTS-5-2-OJ 5 W/FT @ 240 V
1 TTS-8-2-OJ 8 W/FT @ 240 V
1 TTS-10-2-OJ 10 W/FT @ 240 V
Termination kits
2 18-SXG-KITPower connection gland kit w/o junction box
2 ECA-1-SR-SP Power connection kit with metallic junction box
2 PCA-1-SR Power connection kit with non-metallic junction box
4 PCS-1-SR T-splice kit with non-metallic junction box
8 HS-PBSK
4 HS-TBSK
5 ET-6C
Installation accessories
6 BTape
7 CL
9AL TAPE
non-metallic pipe
Controls
3 R1-050-DP Indoor thermostat
3 R3C-0120-DP Weatherproof indoor/outdoor thermostat
Ratings
Available watt densities
Supply voltages 110-120 or 208-240 vac
Max. Maintenance temperature
Minimum installation temperature
Minimum bend radius
T-rating
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4
5
6
7
9
1
8
3
2
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12
Application overview
Creating a materials list
The safety and performance of electric
heat tracing depends on how the cable
was selected, installed and maintained.
Improper handling, installation or
maintenance of the cable can result in
The information, instructions, testing
procedures and warnings addressed in
this guide are important. To minimize these
risks, read this guide prior to starting any
heating cable or component installation
and follow the instructions carefully.
The Canadian Electrical Code requires
that all heat tracing applications utilize
ground-fault protection. This protection
requirement can be achieved through
ground-fault branch circuit breakers
supplying power to the heating cable.
While an insulated pipe can withstand cold temperatures longer
the surrounding environment. An ambient temperature below
freezing can cause insulated pipes to burst, which can be costly and
inconvenient. TTS™ Self-Regulating Heating Cable is designed to
help provide freeze protection of metallic and non-metallic pipes by
replacing the heat lost through the thermal insulation into the air.
Whether the application is a small project or a complex network
of piping and equipment, designing an electric heat-traced freeze
protection system is easy with TTS™ Self-Regulating Heating Cable.
The information contained in this materials guide will take you
through a step-by-step procedure to make proper heating cable
selections based on:
To become familiar with the requirements of a properly designed electric heat tracing freeze protection system, use the
Minimum ambient
temperature
Heating cable
start-up temperature
Pipe size
If higher maintain temperatures are required,
contact us at
Collect information relative to the following design parameters:
Application Information:
• Pipe sizes or tubing diameters
• Pipe lengths
•
• Type and number of valves, pumps, or other equipment
• Type and number of pipe supports
Thermal insulation
type and thickness
Available
power supply
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Expected Minimum Ambient Temperature
Minimum Start-Up Temperature
Insulation Material and Thickness
Supply Voltage
Generally, this number is obtained from weather data compiled for an area and is based on recorded historical data.
There are times, however, when the minimum ambient will be a number other than the minimum outside air temperature.
minimum ambient.
sizing for a given application.
with polyisocyanurate or mineral wool insulations of the same thickness. If insulation materials other than these are
used, contact 3M (for a selection chart supplement that corresponds with the
insulation material.
TTS™ Self-Regulating Heating Cables are designed in two voltage groups:
1. 110-120 Vac
2. 208-240 Vac
using on page 14, or on page 15. If the
pipe size or insulation information does not appear, contact 3M at
1. Select the vertical column headed by a low ambient temperature that is equal to or lower than that expected in
your area.
2. Use the table section which corresponds to the insulation thickness shown in the left-hand column.
3.
TTS™ Self-Regulating Heating Cable recommended for that set of conditions.
4. Note that larger pipe sizes and lower ambient temperatures may require multiple passes of heating cable.
5.
6.
Note: Heat loss calculations are based on IEEE Std 515-1997, Equation A.1, with the following provisions:
• A 10% safety factor has been included
Note: Chart may also be used with polyisocyanurates or mineral wool of the same thickness.
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14
NPS
Pipe Size
Low Ambient Temperature
Insulation
Thickness
(Fibreglass)
Metallic Piping
0.5"
1/2"
One Pass
TTS-5
One Pass 8-TTS
1X TTS-10
1X TTS-10
One Pass
TTS-5
One Pass
TTS-5
One Pass
TTS-5
1X TTS-10
1X TTS-10
1X TTS-10
1X TTS-10
1X TTS-10
One Pass TTS-10
2X TTS-10
1X TTS-10
1X TTS-10
1X TTS-10
1X TTS-10
1X TTS-10
3/4"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
6"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
6"
8"
10"
12"
14"
1"
1.5"
2"
-12°C
(10°F) -18°C
(0°F) -23°C
(-10°F) -29°C
(-20°F) -40°C
(-40°F)
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
6"
8"
10"
12"
14"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
6"
8"
10"
12"
14"
1"
One Pass TTS-8
One Pass TTS-8
One Pass TTS-8
One Pass TTS-8
Two Passes TTS-8
Two Passes TTS-8
Two Passes TTS-8
Two Passes
TTS-10 Contact 3M
Two Passes TTS-8 Contact 3M
Contact 3M
Example on how to read the
Metallic piping chart
Example: A 4" diameter metallic pipe that
not freeze even with a minimum expected
Refer to .
ambient temperature, the section of
the table that corresponds to 1" thick
insulation and the row indicated for a 4"
diameter pipe in
pass of TTS™ Self-Regulating Heating
Cable-5 as the proper cable to use.
Note: Chart may also be used with polyisocyanurates
or mineral wool of the same thickness.
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NPS
Pipe Size
Low Ambient Temperature
Insulation
Thickness
(Fibreglass) -12°C
(10°F) -18°C
(0°F) -23°C
(-10°F) -29°C
(-20°F) -40°C
(-40°F)
1X TTS-10
1X TTS-10
1X TTS-10
One Pass TTS-5
One Pass TTS-8
Two Passes TTS-8
1X TTS-10
1X TTS-10
1X TTS-10
1X TTS-10
One Pass TTS-5
One Pass TTS-5
Two Passes TTS-8
One Pass TTS-5
One Pass TTS-8
One Pass TTS-8
1X TTS-10
1X TTS-10
1X TTS-10 2 X TTS-8
1X TTS-10
One Pass TTS-8 One Pass
TTS-10
Two Passes TTS-8 Two Passes
TTS-10
0.5"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
6"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
6"
8"
10"
12"
14"
1"
1.5"
2"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
6"
8"
10"
12"
14"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
6"
8"
10"
12"
14"
1"
Non-metallic Piping
Additional considerations for
non-metallic piping
For freeze-protecting non-metallic pipes,
TTS™ Self-Regulating Heating Cable is to
be installed with a continuous covering
of 3M™ Aluminum Foil Tape. The data
in is based on this
installation method.
Heat loss characteristics of non-metallic
pipes are similar to metal pipes, but the
TTS™ Self-Regulating Heating Cable
output is lower because of the insulating
properties of the pipewall material. Design
Note: Chart may also be used with polyisocyanurates
or mineral wool of the same thickness.
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16
Heat tracing circuit lengths are based on several conditions that must be simultaneously taken into account
and include:
•
• Operating voltage
• Available branch circuit breaker sizes
• Expected start-up temperature
• Maximum allowable circuit lengths
Additional cable will also be needed to provide extra heat at valves, pumps, miscellaneous equipment and pipe
supports. Use the following guidelines to determine the amount of extra cable required:
• Valves and pumps: use allowances from
• Miscellaneous equipment and pipe supports: use allowances from
To determine circuit lengths, a voltage selection must be made from the available voltages gathered as part of Step 1.
• TTS™ Self-Regulating Heating Cable intended for use on 110-120 Vac will have a catalogue number followed by a 1
• TTS™ Self-Regulating Heating Cable intended for use on 208-240 Vac will have a catalogue number followed by a
or
Using voltage and cable selections plus information from or the maximum heating cable lengths and
branch circuit breaker requirements can be determined.
• If a branch circuit breaker of a known amperage will be used, match this rating with the cable selection and the
temperature at which the cable will be energized
•
the appropriate TTS™ Self-Regulating Heating Cable at the start-up temperature of the cable and determine what
amperage branch circuit breaker will be required
!
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TTS 5-1
TTS 8-1
TTS
10-1
Circuit Breaker Size
Cable
Type
Start-Up
Temp.
30 A20 A15 A
°C (°F) 40 A
10 (50)
-18 (0)
-29 (-20)
-40 (-40)
180 (55)
155 (47)
140 (43)
125 (38)
240 (73)
205 (62)
185 (56)
165 (50)
285 (87)
285 (87)
275 (84)
250 (76)
285 (87)
285 (87)
285 (87)
265 (81)
10 (50)
-18 (0)
-29 (-20)
-40 (-40)
145 (44)
115 (35)
100 (31)
90 (27)
195 (59)
150 (46)
135 (41)
120 (37)
240 (73)
225 (69)
200 (61)
180 (55)
240 (73)
240 (73)
240 (73)
215 (66)
10 (50)
-18 (0)
-29 (-20)
-40 (-40)
120 (37)
85 (26)
75 (23)
70 (21)
160 (49)
115 (35)
100 (30)
90 (27)
200 (61)
170 (52)
150 (46)
135 (41)
200 (61)
200 (61)
200 (61)
180 (56)
TTS 5-2
TTS 8-2
TTS
10-2
Circuit Breaker Size
Cable
Type
Start-Up
Temp. 30 A20 A15 A
°C (°F) 40 A
10 (50)
-18 (0)
-29 (-20)
-40 (-40)
365 (111)
295 (90)
260 (79)
240 (73)
485 (148)
395 (120)
350 (107)
315 (96)
385 (117)
285 (87)
255 (78)
230 (70)
585 (178)
585 (178)
525 (160)
475 (145)
585 (178)
585 (178)
585 (178)
535 (163)
10 (50)
-18 (0)
-29 (-20)
-40 (-40)
290 (88)
215 (66)
190 (58)
170 (52)
485 (148)
430 (131)
380 (116)
345 (105)
485 (148)
485 (148)
480 (147)
480 (147)
10 (50)
-18 (0)
-29 (-20)
-40 (-40)
240 (73)
170 (52)
150 (46)
135 (41)
320 (98)
225 (69)
200 (61)
180 (55)
405 (123)
340 (104)
305 (93)
275 (84)
405 (123)
405 (123)
405 (123)
365 (111)
Example:
from page 10, the 4" diameter metallic pipe
is 60' long, has one screwed valve and is
supported by 6 metal pipe hangers. The
heating cable allowances for the circuit
would be as follows:
Pipe Length: 60'
1 power connection: 1'
1 valve: 4'
Total circuit length: 69'
Valve Allowance Pump Allowance
Pipe Size Screwed Flanged Welded Screwed Flanged
1/2" 6" 1' 0 1' 2'
3/4" 9" 1' 6" 0 1' 6" 3'
1" 1' 2' 1' 2' 4'
1-1/4" 1' 6" 2' 1' 3' 4' 6"
1-1/2" 1' 6" 2' 6" 1' 6" 3' 5'
2" 2' 2' 6" 2' 4' 5' 6"
3" 2' 6" 3' 6" 2' 6" 5' 7'
4" 4' 5' 3' 8' 10'
6" 7' 8' 3' 6" 14' 16'
8" 9' 6" 11' 4' 19' 22'
10" 12' 6" 14' 4' 25' 28'
12" 15' 16' 6" 5' 30' 33'
14" 18' 19' 6" 5' 6" 36' 39'
Description Allowance
Power
Connections
1 foot of TTS™ Self-Regulating Heating Cable
for each heating circuit
Splices
2 feet of TTS™ Self-Regulating Heating Cable
for each splice kit
3 feet of TTS™ Self-Regulating Heating Cable
for each TSplice kit
Insulated Pipe
Supports Require no additional heating cable
Uninsulated Pipe
Supports
Allow 2 times the length of the pipe support
plus an additional foot of heating cable for
each support
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18
Installation Tips
have compiled the following tips:
What to do when you have heat-trace pipe entering a facility:
maintained. This prevents temperature drops due to air gaps or compression of the thermal insulation.
What to do when an above ground pipe goes underground:
While the pipe may eventually travel below the frost line and therefore be protected from freezing, the distance
with the heating cable end terminated above the normal water line. If the application is temperature maintenance,
surrounding environments.
What to do when a freeze protection application has a main line with a short branch line connected to it:
need to install a T-splice kit.
What to do when all heating cable power connection points need to be secured to the piping:
Heating cable should not pass through the air to travel to an adjoining pipe. Instead, use multiple circuit fabrication
A TTS™ Self-Regulating Heating Cable Self-Regulating Freeze Protection Heat Tracing System will typically include the
following components:
1. TTS™ Self-Regulating Heating Cable (refer to and
2. Power connection / circuit fabrication kits
3. Thermostats
4. T-splice kit
5. End termination kit
6.
on page 18 to determine tape requirements.
7. CL “Electric Heat Tracing” label (peel and stick label attaches to insulation vapor barrier on 10' intervals or as
8. Inline splice kit
9. Aluminum tape to hold down cable and disperse heat as required
Pipe Size ½"-1" 1¼" 1½" 2" 3" 4" 6" 8" 10" 12" 14"
Feet of Pipe/Roll of Tape – 180' roll of tape 360' 260' 220' 180' 150' 120' 90' 70' 60' 50' 40'
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Note: Pipewall sensing is required for non-metallic piping.
more than one thermostat may be required. Examples of situations where more than one
thermostat could be necessary:
• Pipes of varying diameters or insulation thicknesses
• Varying ambient conditions such as above/below ground transitions and indoor/outdoor transitions
•
• Applications involving temperature-sensitive products
While these four steps provide the considerations required to plan the materials list and/or specify a TTS™ Self-
Regulating Heating Cable Self-Regulating Heat Tracing System, some type of control will typically be needed. The type
of control and level of sophistication needed will depend entirely on the application of the piping being heat-traced.
Self-regulating heating cables can, under some design conditions, be operated without the
use of any temperature control. However, some method of control is generally used and the
two most common methods are ambient sensing and pipewall sensing. Each method has its
Ambient Sensing: An adjustable thermostat, designed for mounting in an exposed
environment, senses the outside air temperature. When this temperature falls below the
Should the electrical load of the heating circuit exceed the rating of the thermostat switch,
a mechanical contractor can be used. An entire power distribution panel, feeding dozens
of heat tracing circuits, can be energized through an ambient sensing thermostat. The
primary application for ambient sensing control of electric heat tracing is freeze protection
for freeze protection is that pipes of varying diameters and insulation thicknesses can be
of the heated pipe needs no consideration.
Pipewall Sensing: While a self-regulating cable adjusts TTS™ Self-Regulating Heating Cable
heat output to accommodate the surrounding conditions,
Thermostatic Control
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20
Ratings
Data Sheet — TTS™ Self-Regulating Heating Cable for Pipe Freeze Protection
1
2
3
4
5
Construction
2 Radiation Cross-Linked Semiconductive Heating Matrix
3 Radiation Cross Linked Dielectric Insulation
Available watt densities
Supply voltages 110-120 or 208-240 vac
Max. Maintenance temperature
Minimum installation temperature
Minimum bend radius
T-rating
Basic Accessories
Power Connection: All TTS™ Self-Regulating Heating Cables require an ECA, PCA or 18-SXG-KIT power connection kit
for terminating the circuit before connecting to power.
End-of-Circuit Termination: TTS™ Self-Regulating Heating Cables require the ET-6C end cap for terminating the end
of the circuit.
This manual suits for next models
7
Table of contents
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