Truma FrostControl JG 12 mm - current-free safety and drain valve with frost protection, John Guest
- Truma FrostControl automatically drains the boiler at risk of frost (approx. 3°C) and at overpressure, without power. For Truma boilers, Combi and fixed water tanks. 12 mm john guest connections.
Truma FrostControl is a current-free safety and drain valve with a frost guard function. When the temperature at the valve drops below approx. 3°C, it opens by itself and drains the boiler water outside. At overpressure, for example when the boiler heats up, it releases pressure in bursts. It is an accessory for Truma boilers and fixed water tanks and a spare part for the Truma Combi. Version: 12 mm John Guest connections.
Key information
- automatic draining at risk of frost (approx. 3°C)
- overpressure relief up to 4.5 bar
- can be opened manually
- works without power
- for pumps up to 2.8 bar
- 12 mm John Guest connections
Before you order
The FrostControl is installed in the cold water supply, in a heated space, away from other heat sources. Water drains through the drain socket directly outside, at a splash-protected point. The socket must always be kept clear and the valve should be operated at least twice a year to remove limescale. On a Truma boiler the FrostControl replaces the manual safety and drain valve. Materials in contact with water are drinking water safe. Truma gives no warranty for frost damage. Before ordering, compare the Truma part number with the part in your appliance.
Related products
- Truma FrostControl kit 10 mm for hoses
- Truma FrostControl 10 mm with angled connections
- Truma FrostControl heating element for Combi
- Truma safety and drain valve JG 12 mm
Technical data
| Parameter | Value |
|---|---|
| Manufacturer | Truma |
| Max. pump pressure | 2,8 bar |
| Max. relief pressure | 4,5 bar |
| Automatic opening | below approx. 3°C |
| Manual closing possible | above approx. 7°C |
| Operating temperature | -30°C - +80°C |
| Connections | 12 mm John Guest connections |
| Truma part number | 34020-00238 |
Questions and answers
When does the FrostControl open?
Automatically when the temperature at the valve falls below approx. 3°C and at overpressure up to 4.5 bar. It can also be opened manually.
Why can I not close the valve?
The valve can only be closed above approx. 7°C. Truma recommends switching on the vehicle heater.
Which pump is it suitable for?
For all pressure and submersible pumps up to 2.8 bar.
Does it fit the Truma Therme?
No, Truma states that the FrostControl is not an accessory for the Therme.
Manufacturer
Truma Gerätetechnik GmbH & Co. KG, Wernher-von-Braun-Straße 12, 85640 Putzbrunn, Germany.