The minimum recommended ‘in-use’ concentration of the product is 25% in order to ensure adequate corrosion protection. This concentration will protect down to -11°C. A concentration of 40% will protect down to -22°C. Alphi-11 Antifreeze Protector can be introduced via the feed and expansion tank, or injected directly into the system via a suitable point (e.g. dosing pot). Introduce into the system after draining off a quantity of water at least equal to the amount of Alphi-11 to be added. Engage the circulating pump and have the system online for a few hours in order to achieve an even distribution.
Concentration 25% 30% 35% 40%
Protection -11°C -15°C -18°C -22°C.
In single feed indirect cylinders, e.g. “Primatic” or similar, potable water chemicals must be used. We recommend untreated systems are thoroughly cleansed and flushed, in accordance with BS 7593:2019 and Benchmark, using Fernox Cleaner F3, before treating with Fernox Alphi-11 Protector, as existing debris can damage the installation.
