Symbols Used; Intended Use; Function Description - Truma FrostControl Mode D'emploi

Symbols used

Symbol indicates possible hazards.
Note containing information and tips.

Intended use

The FrostControl is a currentless overpressure drain valve with
a frost monitor function. It can be used as an accessory for
the Truma hot water units Boiler or Combi, and also for per-
manently installed water tanks in caravans and motor homes.
As a spare part for the FrostControl that is included with the
Combi hot water units – depending on the scope of delivery.
The FrostControl is suitable for all pressure pumps and immer-
sion pumps with a pressure of up to 2.8 bar.
The FrostControl is not suitable as an accessory for the
Therme.
The materials of the unit that come into contact with water
are drinking water safe (see Manufacturer's Declaration,
www.truma.com – Manufacturer's Declaration).
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Function description

Overpressure pressure relief valve
With an overpressure of up to max. 4.5 bar (produced e.g.
when the boiler heats up), the FrostControl opens auto-
matically and releases the overpressure in fits and starts via
a drainage socket.
Manual drain valve
The drain valve can be opened manually to empty the water.
Frost monitor
If there is a risk of frost (ambient temperature approx. 3 °C),
the FrostControl opens automatically and drains out the water
in the boiler via a drainage socket.
Only at an ambient temperature of approx. 7 °C can the
drain valve be closed again manually and the boiler be
filled.
To guarantee perfect operation, the safety/drain valve
must be installed in a heated room. If this is not done,
malfunctions can occur and the drain valve opens automati-
cally during operation.