Range of wall mounted, gas fired combination boilers providing domestic hot water via a plate heat exchanger and pressurised central heating system. The primary circuit incorporates an expansion vessel and a pressure relief valve set at 3.0 bar. The secondary circuit incorporates a strainer and plastic flow regulator. The boilers are supplied with straight spherical valves. Maximum working pressure of primary circuit is 2.5 bar and of secondary circuit is 10.0 bar. Maximum operating temperature of primary circuit is 85°C and of secondary circuit is 60°C.
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