Fenix ELSR-M - Manual (Page 4)

2. USE FOR THE DEFROSTING OF GUTTERS, STANDPIPES AND ROOFS WHERE
THE SNOW CANNOT MELT AWAY FREELY
• ELSR – N- 20 – 2- AO and ELSR – N- 30 – 2- AO cables installed in gutters and
standpipes provide protection against damage caused by freezing water at
temperatures around
0 °C. The heating cables will melt the ice and the water will
be able to flow freely through the gutters and into the standpipes.
• Cables installed on the roof provide protection in the following cases:
a) when the snow cannot freely slide from the roof into gutters and it accumulates at
anti-snow barriers or in hollows where the roofing is overburdened with accumulating
wet snow.
b) when the snow cannot freely slide from the roof into gutters and the accumulating
water under snow barriers rises through the roof covering and leaks into the building
c) when the snow which is sliding from the roof forms a cornice above the gutter and
doesn’t flow into the gutter spout.
These systems are always combined with the placement of the cable into the gutter
spouts and standpipes.
2. a) Installation
- for smaller spouts and standpipes with diameters of up to 150 mm it is enough to lay
the cables freely, without any further fixing. If more cables are used, we recommend
placing the cables approximately 6 cm from one another; using copper C clamps to
attach them.
- for the passage of the cable from the spout into the standpipe, it is necessary to fix the
cable in such a way that it doesn’t get damaged over the edge of the passage.
2. b) Regulation
As the self-regulating heating cable never switches off completely, not even during high
summer temperatures, it is recommended that the cable be regulated with a thermostat,
or switched off. For example, the regulator EBERLE EM 524 87 + the humidity probe
ESD 524 003 + the temperature sensor TFD 524 004 or a differential regulator,
EBERLE DTR-E 3102, OJ Elektronik ETR/F-1447 A, which is suitable for smaller
applications and well-insulated roofs, can be used for this regulation. The recommended
temperature setting is -5°C to + 3°C.