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4.1.3
Temperature sensor
Temperature sensor measures the water temperature in the hot water tank to control the entire system.
4.1.4
Corrosion protection
In addition, the top part shell of the hot water heater is corrosion resistant (it is
made of stainless steel)
and the hot water tank is enamelled and also contains magnesium anode which needs to be checked
regularly, as recommended by the installer or service technician.
4.1.5
Expansion tank *
Expansion tank is a device whose purpose is to compensate for the increase and decrease in water volume
due to temperature fluctuations.
Installing the expansion tank is recommended to save water. The recommendation of installing
an expansion tank is the responsibility of the installer.
It is generally installed on a cold water pipe.
4.1.6
Safety system *
The safety system allows for protection against any non
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standard situations:
cooling water heater, reverse
flow of warm water back into the water main, emptying the hot water heating tank and pressurisation.
The safety valve should be calibrated to the opening pressure of 0.6 MPa. To discharge water from the hot
water tank it is necessary to close the inlet valve and open the drain valve. The drain pipe of the safety valve
should be drained into sewers by transparent hose, since water may drip or even drain off the valve.
The safety valve must be regularly opened to remove impurities and to control its patency. The drain pipe
must be installed in an area protected from frost.
4.1.7
Pressure control valve*
Pressure control valve must be installed in case of high pressure on cold water connection in order to ensure
the proper operation of the safety valve. The connection may be provided with a pressure gauge to check
the pressure.
* Parts that are not delivered by the manufacturer. Their delivery and installation must be performed
by the installer.
