Anti-freeze protection kit 3/4
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The frost protection kit is a mechanical valve designed to protect the heat pump from the risk of freezing, even in the event of a power failure. It is the final protective element in the connection circuit between the outdoor unit and the indoor hydraulic kit: when the system temperature drops to 1 °C, the valve opens outward, allowing the circuit to drain gradually, and then closes automatically when the temperature rises above 4 °C. It must be installed near the outdoor unit, on the system return, that is, on the colder side, where it uses the 3/4" drain connection. Its purely mechanical operation ensures complete reliability even during blackouts, providing essential protection during the coldest seasons and preventing costly damage to system components.
Technical specifications:
- Mechanical frost protection valve
- 3/4" connection on the outdoor unit's drain connection
- Valve opens at 1 °C and closes again above 4 °C
- Operates even in the absence of a power supply
- To be installed on the system return, on the colder side
- Consisting of a 3/4" threaded male/male nipple and a 4-way brass body
- Equipped with a hose connector and ball valve with screwdriver insert
- 2 opening liquid plugs