47
Radijator Inženjering DOO, 36000 Kraljevo, Živojina Lazića Solunca br.6, Srbija
tel. +381 36 399 140, fax. +381 36 399 150,
, e-mail: radijator@radijator.rs
If it is impossible to provide the inflow of cold sanitary water at the time of electricity
switch off, the boiler must be connected onto the open system.
Figure 8 . Installation of safety elements
4.4. Thermostats in the
automation
of the boiler
Within the automation itself that leads the combustion process and influences the work of
cycles of heating. In
figure 9
is shown Safety Limited Thermostat and they have safety
functions as limiters of the temperature of water in the boiler. The first thermostat is the so-
called „working thermostat” work and it serves to limit the temperature to a level the user
wants. Another thermostat is the „safety thermostat” because it stops the operation of the fan
which favours the flame, and adds a new energy. Safety temperature is limited to 95 degrees
Celsius.
It is very important to connect the pump for heating through automation for safety
reasons.
When the temperature of water in the boiler reaches the critical value of 95
degrees the fan stops working, but the pump is necessarily switched on to exchange the
heat of water through radiators.
Figure 9. Thermostat on automatic
