Protects the boiler against frost damage. When the temperature falls below 37.4 degrees Fahrenheit (three degrees Celsius) the water automatically flows out of the boiler to the outside via a discharge nozzle.
- If there is a risk of frost or excess pressure, the drain valve opens automatically without electricity
- Valve can also be opened manually
- From seven degrees Celsius ambient temperature, the valve can be closed and the boiler filled again"
Includes 12mm to 1/2" PEX CTS Adapters to use with standard 1/2 pipe
Installation and Operating Instructions: Available here