litres per minute of hot water provided an adequate supply is available. The minimum recommended supply should be 1.5 bar and a flow rate of 25 litres per minute. be connected to a gas or oil-fired boiler, ideally condensing. The primary circuit must be pumped rather than gravity fed, but can be either open vented or sealed. providing the structure it will be sat on is capable of holding the weight of a cylinder filled with water. Cold water inlet and hot water draw-off - 22mm Coil flow and return - 22mm Temperature and pressure relief - 1/2" Inlet group - 22mm Inlet: 15mm Cylinder capacities 200 litres and above come with a dedicated secondary return connection. For smaller cylinders, it is possible to use a swept tee on the cold-water inlet to provide the same. |