CONTROL OF ROOF APPLICATIONS
In order to obtain a roof application that has a low energy consumption it is a must that the switching on and off is controlled in some way. This can be done in quite a few different ways. What method to choose is depending on the size of the application and how it can be supervised.
Manual switching on/off
The application is switched on when it is required.
You should avoid this method as it often gives a high energy consumption.
Control with single thermostats
Sensitive to the air temperature
The application is switched on when the temperature is below the adjusted value.
Control with double thermostats
Sensitive to the air temperature
The application is switched on when the temperature is within the adjusted difference.
Example: +2….. -2°C
Control with roof surface- and air detecting sensors
Sensitive to the surface temperature of the roof and the air temperature
The application is switched on when the temperature of the roof is so high that the snow melts at the same time as the air temperature is below 0°C and there is a risk of freezing in the gutters and pipes.
Control with LCD-2, snow/rain- and temperature detecting sensors
Sensitive to moisture and temperature
The application is switched on at snow fall (super cooled rain) if the temperature conditions is performed and is switched on as long as moisture is left in the gutters. A complete control where the operating time of the application is minimized. This is the most economical way of controlling smaller installations.
Control cabinets
VÄRMEKABELTEKNIK has a large range of control cabinets of all kinds of heating cable applications. If required, we also design and manufacture special control cabinets according to the customers request.
For more information on control cabinets, thermostats and other components go to chapter “CONTROL”.