Installation and Operation Instructions
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Figure 21. Laying the cable in the drainpipe in two threads.
2) You can use a tape measure to measure the length of each cable required
for installation in a gutter. When calculating the required cable length, mul-
tiply the pipe length by 2.
Once you know the required cable length, the next step is to install the
spacers and feed the cable inside the drainage pipe. Spacers must be
attached to the cable every 6-inches so that the cable does not come into
contact with itself in the pipe. Tighten the spacers before the cable is in-
stalled in the drainage pipe.
This can be done manually or with pliers. When using pliers, be careful not to
pinch, crimp, cut, or otherwise damage the cable. Lower the cable into the gut-
ter with the thread with a load.
If there is a drainage pipe at the end of the roofing line, it is recommended that
the cable be directed down the inside of the pipe and back up.
Do not wrap the cable around the drainage pipe.
5.6 Final Steps of Installation
Make sure that the cable has not been moved from its intended position.
The heating part of the cable should be located entirely on the roof and should
not have twisted sections.
1) Tie a small object (for example, a washer) to a cord or thread and lower it
into the drainpipe. As soon as the washer exits through the bottom of the
drainpipe, mark the location at the top of the thread to measure the length
of the drainage pipe.
You will need twice the cable length. (Note: For accurate results, use a cord
that does not stretch when attaching a small object).
