Range of heat interface units (HIU) with either twin or single stainless steel copper brazed plate heat exchangers (depending on model) providing heating and hot water (twin unit) hot water only, or heating only. The hot water is generated via a plate heat exchanger. The primary (space heating) circuit incorporates an expansion vessel and a pressure relief valve (set at 3.0 bar). The product incorporates a CAb backflow prevention device (suitable for backflow protection against Fluid Category 3) for filling the heating circuit. The inlet and outlet of all circuits incorporate a lever operated spherical valve. Maximum working pressures and operating temperatures: Primary (district heating): 10.0 bar and 85˚C. Domestic hot water (DHW): 10.0 bar and 60˚C. Secondary (space heating): 2.5 bar and 80˚C.
'Albiseal'. Blue coloured, liquid PTFE anaerobic sealant. For use with water up to 85°C. This product is to be applied and cured in strict accordance with the manufacturer's instructions.
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