Fernox Antifreeze Valves must only be installed in a horizontal position, with the outlet facing downwards, to allow the drained water to flow out properly and free from obstructions.

Fernox Antifreeze Valves must be installed externally, in the coldest part of the system, where there is a risk of frost. It is recommended to install a Fernox Antifreeze Valve on both pipes (flow and return Fig. 3). They must also be positioned away from heat sources that could affect correct operation.
Keep a distance of at least 10 cm from the ground (Fig. 1). Maintain a distance of at least 10 cm between the antifreeze valves so that, in the event of a discharge, the valve positioned above does not discharge onto the valve below (Fig. 2).
In-line with regulations, the discharge from the antifreeze valve must be routed into an appropriate collection tray or pipe.
It is advisable to keep the system under pressure at all times, even when draining a Fernox Antifreeze Valve.
In very hard water areas there must be provision for adequate filtration and water treatment of the water before it enters the system, according to technical standards.

Do not make any trap connections.
If the shape of the connection pipe has the potential to create a trap effect (as shown in Fig. 4), drainage is prevented and frost protection will no longer be guaranteed.
Do not use heat above 65°c.